JPH0520584Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a door seal structure for an automobile in which the door is supported on the vehicle body so as to be openable and closable via a link type hinge mechanism.

(Prior art) The link type hinge mechanism for automobile doors was developed with the aim of increasing the space for getting in and out without having to open the door wide.The door side support part is shown in Figs. 5 and 6. As shown in the figure, the box space D is housed in a box space D formed by providing an opening C at a predetermined portion extending from the proximal end surface A of the door a to the inner surface B of the door a.

For example, the link type hinge mechanism disclosed in Japanese Utility Model Application Publication No. 57-205361 has a vehicle body side support part b fixed to a pillar P and a door side support part c fixed to a door a, as shown in FIG. are connected by an inner link d, an outer link e, and a connecting link f, each having a bent portion facing inside the vehicle body, and a box space D that accommodates the door side support part c of this link type hinge mechanism.
is formed by an opening C provided extending from the proximal end surface A to the inner surface B of the door a.

The link type hinge mechanism developed by the present inventor (publication of Utility Model Publication No. 4-31423) connects the vehicle body side support part b and the door side support part c to the inner link g.
and an outer link h having a bent portion facing inward of the vehicle body, thereby avoiding the bent portion of the inner link d of the conventional example from protruding toward the interior of the vehicle, and omitting the connecting link f of the conventional example. Although the structure is compact, the door side support part c is housed in a box space D formed similarly to the conventional example.

(Problems to be Solved by the Invention) In the above conventional example and the prior art developed by the present inventor, if door a is to be sealed on the inside of the passenger compartment in the same way as the conventional general door sealing method, the box space D It becomes necessary to seal the door at a position T that avoids the opening C. This is because if an attempt was made to seal the door by disposing the weather strip at the position indicated by E in FIGS. 5 and 6, the seal would be incomplete due to the opening C.

Therefore, in order to seal the door at the position shown by T in FIGS. 5 and 6, it is necessary to extend the pillar P toward the entrance and exit, as shown by the imaginary line, and use its extended portion S.
There is no choice but to fix the weather strip W to the weather strip W, which causes the problem that the entrance/exit door is pinched by the extended portion S.

(Means for Solving the Problems) In order to solve the above problems, the present invention has a plurality of box spaces formed by providing openings at predetermined portions extending from the proximal end surface of the door to the inner surface of the door. In an automobile in which a door-side support part of a link-type hinge mechanism including a link is housed, and the door is supported on the vehicle body so as to be freely openable and closable via the link-type hinge mechanism,
A portion located on the outer side of the link type hinge mechanism on the base end side end surface and an extension portion extending from the vehicle body so as to be close to and opposite to the portion when the door is fully closed, on the outer side. It is characterized in that the door is sealed through a weather strip that is sandwiched and compressed between the positioning portion and the extension portion.

The extension portion may be an extension of the outer panel of the vehicle body, or may be a finish plate whose base end is fixed to the pillar.

The weather strip may be fixed at a location on the outer side of the link type hinge mechanism on the proximal end surface, or on either side of the extending portion.

(Function) According to the above configuration, the portion located on the outer side of the link type hinge mechanism on the proximal end face and the extension portion extending from the vehicle body so as to be close to and opposite to the portion when the door is fully closed. Since the door is sealed through the weather strip, the door and the vehicle body can be sealed on the outer side of the link hinge mechanism, so there is no need to extend the pillar toward the entrance and exit. can be made larger. Further, the weather strip is compressed by being sandwiched between the portion located on the outer side and the extending portion, and the door is opened and closed via a link type hinge mechanism,
When the door is fully closed, the portion located on the outer side approaches the extension portion in a substantially perpendicular direction, so that the door seal is reliable.

(Embodiment) Figures 1 to 3 show a first embodiment in which the present invention is applied to a front door 1 of a one-box car. Base end surface 2 of front door 1
In a box space 5 formed by providing an opening 4 at a predetermined position extending from the inside surface 3 of the front door 1,
A door-side bracket (door-side support portion) 17 of the link type hinge mechanism 6 is accommodated.

In the seal structure of this example, the outer panel of the vehicle body (vehicle body)
7a is extended and bent toward the proximal end surface 2 of the front door 1 to provide an extension portion 8, which serves as a sealing surface on the vehicle body side. The inside of the joint 2a with respect to the outer surface 9 of the door is used as a door-side sealing surface, and both sealing surfaces are sealed by a weather strip 10 fixed to the door-side sealing surface. The weather strip 10 is compressed to seal the door when the door is fully closed.

In FIG. 1, reference numeral 7b represents a front pillar, and a vehicle body side bracket 12 is fixed to a door attachment portion of the front pillar 7b with a bolt or the like. In this vehicle body side bracket 12, one end 13a of an inner link 13 located on the inside of the vehicle body and one end 14a of an outer link 14 located on the outside of the vehicle body are pivotally connected by pivot pins 15 and 16, respectively. A door side bracket 17 is fixed within the box space 5 of the front door 1 with bolts or the like so as to face the vehicle body side bracket 12.
This door side bracket 17 has the inner link 1
The other end 13b of 3 is pivotally connected by a pivot pin 18. An extension portion 19 is connected to one end 14b of the outer link 14 and is bent in a downward direction toward the inside of the vehicle body. A first engagement pin 20 is installed at one end 14b of the outer link 14, and a second engagement pin 21 is installed at the tip of the extension portion 19. The distance between the pivot pins 18 of the inner link 13 is set longer than the distance between the pivot pin 16 of the outer link 14 and the first engagement pin 20.
The door side bracket 17 is formed with a first guide groove 22 and a second guide groove 23 in which the first and second engagement pins 20 and 21 are movably engaged, respectively. The first guide groove 22 is composed of an arcuate door rotation guide part 24 centered on a pivot pin 18 that pivotally connects the inner link 13 and the door bracket 17. In this state, the first engagement pin 20 is located at one end 24a of the outer link 14 near the center. Further, the second guide groove 23 includes an arc-shaped door rotation guide section 25 centered on the pivot pin 18 and an arc-shaped link rotation guide section centered on one end 24a of the door rotation guide section 24. One end 26a of the link rotation guide section 26 on the outside of the vehicle body is connected to one end 25a of the outer link 14 of the door rotation guide section 25 near the center, and when the front door 1 is closed. In this state, the second engagement pin 21 is located at the other end 26b of the link rotation guide portion 26 inside the vehicle body.

Link type hinge mechanism 6 configured as above
In the state shown in FIG. 1, the second engagement pin 21 is
Since the first engagement pin 20 is located within the link rotation guide part 26 in the guide groove 23 of
4a, and is connected to the vehicle body side bracket 12, both links 13, 14, and the door side bracket 17, and forms a four-bar link mechanism with pivot pins 15, 16, 18, and the first engagement pin 20 as pivot points. It is composed of Therefore, when the front door 1 starts to be opened from this state, both links 13 and 14 are connected to the pivot pin 1.
5 and 16, the four-bar link mechanism deforms and the base end of the front door 1 moves outward as shown in FIG. that time,
Due to the difference in length between the inner link 13 and the outer link 14, the front door 1 is in a half-open state. In addition, since the inner link 13 is set longer than the outer link 14, the rotation angle of the outer link 14 becomes large without interference between the inner link 13 and the outer link 14, and the outer link 14 can be moved outward from the base end of the front door 1. The amount of movement in the direction is increased, and the compact structure allows for a larger boarding and alighting space when the door is partially opened.

When both links 13 and 14 rotate, the outer link 14 rotates relative to the door bracket 17, so that the second engagement pin 21 moves into the link rotation guide of the second guide groove 23. It moves within the section 26 from the other end 26b to the one end 26a, and when the front door 1 is in a half-open state, it reaches the one end 26a,
The second engagement pin 21 is located at one end 25a of the door rotation guide portion 25. When the front door 1 is further opened in this state, as shown in Fig. 3,
With both links 13 and 14 stopped rotating, the door side bracket 17, that is, the front door 1, rotates counterclockwise around the pivot pin 18, and the front door 1 is fully opened. At this time, the first and second engagement pins 20, 21 are connected to the first and second guide grooves 22,
23 in the door rotation guide portions 24 and 25 toward the other ends 24b and 25b. Furthermore, since the first and second engagement pins 20 and 21 of the outer link 14 are engaged with the door rotation guide parts 24 and 25, the outer link 14 and the door side bracket 17 can freely rotate. In order to prevent rotation of both links 13 and 14,
That is, the four-bar linkage mechanism does not deform, and the front door 1 rotates around the pivot pin 18 in a fixed state.

When closing the front door 1, the operation is opposite to that described above, and the front door 1 rotates around the pivot pin 18 until it reaches the half-open state, and then both links 13 and 14 rotate.
The front door 1 is closed by the rotation of the front door 1. When the front door 1 is closed, the weather strip 10 is fixed to the proximal end surface 2 of the front door 1.
is pressed against the extending portion 8 of the vehicle body outer plate 7a, and seals between the front door 1 and the vehicle body on the outer side of the link type hinge mechanism 6 and thus the box space 5.

The second embodiment of the present invention is for a general passenger car, and as shown in FIG. 4, the base end is fixed to the pillar outer 7c of the front pillar (vehicle body) 7b,
A finish plate (extended portion) 8a whose tip portion protrudes toward the proximal end surface 2 of the front door 1
A weather strip 10 is fixed to the weather strip 10, and a sealing surface is formed on the inner side of the door side of the joint 2a between the base end surface 2 and the outer surface 9 of the front door 1. The link type hinge mechanism 6 and box space 5 in this embodiment are constructed in the same manner as in the first embodiment.

The present invention can be configured in various ways other than those shown in the above embodiments. For example, in the above embodiments, the seal structure of the present invention is applied to the front door, but it is of course also possible to apply it to the rear door.

(Effects of the invention) Since the present invention has the above-mentioned structure and function, it is possible to securely seal the door, avoid extending the pillar toward the entrance and exit, and by making the entrance large, the link type hinge mechanism You can take full advantage of the function that allows you to have more space for getting in and out without having to open the door wide.

[Brief explanation of the drawing]

1 to 3 show a first embodiment of the present invention, in which FIG. 1 is a plan view showing the state when the door is fully closed, FIG. 2 is a plan view showing the state when the door is half open, and FIG. 4 is a plan view showing the second embodiment of the present invention, FIG. 5 is a plan view showing the conventional example, and FIG. 6 is a plan view showing the state when the door is half open. FIG. 2 is a plan view showing the technique. DESCRIPTION OF SYMBOLS 1... Door, 2... Proximal end surface, 3... Inner surface, 4... Opening, 5... Box space, 6...
Link type hinge mechanism, 7a, 7b... Vehicle body, 8...
...Extension part, 10...Weather strip, 17...
Door side support part.

Claims (1)

[Claims for Utility Model Registration] (1) A door side of a link-type hinge mechanism that is provided with a plurality of links in a box space formed by providing an opening at a required portion extending from the proximal end face of the door to the inner face of the door. In an automobile in which a support part is housed and the door is supported on a vehicle body so as to be freely openable and closable via the link type hinge mechanism, a portion of the proximal end face located on the outer side of the link type hinge mechanism;
A weather strip that is compressed by being sandwiched between a portion located on the outer side and the extending portion extending from the vehicle body so as to be close to and facing the portion when the door is fully closed. A seal structure for an automobile door, characterized in that the door is sealed through the door. (2) The seal structure for an automobile door as set forth in claim 1 of the utility model registration claim, wherein the extension portion is an extension of the outer panel of the vehicle body. (3) The seal structure for an automobile door according to claim 1, wherein the extension part is a finish plate whose base end is fixed to the pillar.