JPH057059Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to sliding doors used in vehicles such as one-box cars, trucks, and passenger cars.
In particular, the present invention relates to an upper guide structure that improves the stability of door opening and closing operations. Since the present invention is suitable for the above-mentioned 1-box car, this will be explained below as an example.

[Conventional technology]

A one-box type car has a continuous box-shaped compartment and luggage compartment, the engine is located under the floor, and a sliding door that can be moved forward and backward along the side of the vehicle. We are prepared. This sliding door is configured such that the approximate center in the height direction of the door body is supported by a support roller, and the lower and upper parts of the door body are guided by a guide roller and a guide rail. As a result, when the door is closed, the door body fits into the door opening and the outer surface of the door matches the side of the vehicle body, and when the door is opened, the door body is moved outward by the thickness of the door and then follows the side surface of the vehicle body. It is designed to be moved around.

Conventionally, in order to move the door body in the vehicle width direction by the thickness of the door body, a guide roller is attached to the inner side end of the connecting arm attached to the upper part of the door body. A structure is adopted in which a guide rail that is bent and formed is attached to the vehicle body, and the guide roller is guided by the guide rail.

However, in the above conventional upper guide structure,
Since the guide rail is shaped to protrude toward the interior of the vehicle, the roof side rail portion of the vehicle body that accommodates the rail also bulges toward the interior of the vehicle, and as a result, the shape of the guide rail is complicated. There is a problem in that the indoor space becomes narrower by the amount of the bulge and the appearance deteriorates.

A conventional upper guide structure for a sliding door that can solve the above problem is shown in FIG. 8. This has two guide grooves 31a and 31b extending in the longitudinal direction of the vehicle formed in a guide base 31 attached to the upper part of the door body.
The connecting arm 32 is inserted into the guide pin 3 in 1a and 31b.
2a so as to be slidable in a horizontal plane, and furthermore, a guide roller 33 attached to the inside of the vehicle of the connecting arm 32 is guided by a guide rail 34 having a U-shaped cross section attached to the vehicle body. be.

According to this conventional structure, when the guide roller 33 comes to the front end position 34a, the connecting arm 32 rotates around the guide roller 33, thereby pulling the door body into the inside of the vehicle, and as a result, the guide rail 3
The door can be moved in the vehicle width direction without bending the door 4 inward, and the problem caused by the protrusion toward the inside of the vehicle can be solved.

[Problem that the invention attempts to solve]

However, in the structure shown in FIG. 8, the connecting arm 32 rotates while sliding within the two guide grooves 31a and 31b, so that the opening and closing operations of the door,
Depending on how the force is applied, there is a possibility that the connecting arm 32 will rotate in the opposite direction of the arrow D in the figure, that is, it will be reversed. In addition, one guide roller 3
3 is guided by both side surfaces 34b of the U-shaped guide rail 34. However, depending on the setting of the gap between the two, it may become difficult to rotate the guide roller 33, and furthermore, it may become difficult to rotate the guide roller 33 in the direction of the arrow E shown in the figure. As a result, there is room for improvement in terms of the stability of the opening and closing operations of the door.

SUMMARY OF THE INVENTION An object of the present invention is to provide an upper guide structure for a sliding door for a vehicle that can solve the problem of the conventional guide rail protruding toward the interior of the vehicle and improve the stability of the door opening/closing operation.

[Means for solving problems]

The present invention provides an upper guide structure for a sliding door for a vehicle, in which two guide grooves extending in the front-rear direction are provided at the upper part of the sliding door at a predetermined interval in the vehicle width direction, and the front ends of the two guide grooves are arranged at a predetermined interval in the vehicle width direction. Formed so that the angle between the line connecting the parts and the tangent at the front end of the outer guide groove is 90 degrees or less,
The connecting arm is swingably supported in a horizontal plane by both guide grooves, and a pair of guide rollers are provided at the inboard end of the connecting arm, with their respective axes oriented in the vertical direction, and the connecting arm is The inner guide roller is installed at a predetermined interval in the direction of door movement while being positioned at the front end of both guide grooves, and the inner guide roller is positioned behind the front end of the guide groove to prevent the rotation of both guide rollers. It is characterized by a linear guide rail sandwiched between the moving surfaces.

[Effect]

In the upper guide structure according to the present invention, the connecting arm is swingably supported by the two guide grooves formed in the door body, so when the door is moved to the closed position, the connecting arm is moved toward the inside of the vehicle along with the door. The door body can be moved in the width direction of the vehicle without bending the guide rail toward the interior of the vehicle, which eliminates the problem of constriction of interior space and deterioration of aesthetics due to the protrusion of the guide rail toward the interior of the vehicle. can be resolved.

In addition, a line connecting the front ends of the guide grooves,
Since the angle between the outer guide groove and the tangent line is 90 degrees or less, for example, even if a forward force is applied to the inboard end of the connecting arm, the outboard end of the connecting arm will not rotate rearward. movement is prevented and the connecting arm will not be reversed. In addition, since the guide rail is sandwiched between the rolling surfaces of the pair of guide rollers, even when a load is applied to the door in the direction of the vehicle interior, the connecting arm can be prevented from wobbling and stability can be improved. stability can be improved.

〔Example〕

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

1 to 6 are diagrams for explaining an upper guide structure of a sliding door according to an embodiment of the present invention.

In the figure, 1 is a one-box type automobile in which the sliding door of this embodiment is adopted;
A sliding door 3 is disposed on the side surface 2 of the vehicle so as to be movable in the longitudinal direction of the vehicle, thereby opening and closing a door opening 2a formed in the center of the side surface 2. The slide 3 has a rear guide section 4 at the approximate center in the height direction at the rear end, a lower guide section 5 at the lower front end, and an upper guide section 6 at the upper front end, which are respectively a center guide rail 4a, a lower guide rail 5a, and an upper guide rail. You will be guided at 9.

The upper guide part 6 is constructed by bolting and fixing a guide base 7 to the front end of the upper end 3a of the sliding door 3, attaching a connecting arm 8 to the guide base 7, and attaching it to the upper edge of the opening 2a of the vehicle body. It is configured to be guided by the fixed guide rail 9.

As shown in FIG. 1 when viewed from above, the guide base 7 is a flat plate having two inner guide grooves 10 and an outer guide groove 11 extending in the longitudinal direction of the vehicle. The groove 10 is formed in an inclined shape so that the rearward side is located outward, and the outer guide groove 11 is formed in a curved shape such that the center part is located inward. It is located a little forward of the front end 11a of. As a result, both front end portions 10a, 11a
The angle α between the line A connecting the outer guide groove 11 and the tangent B at the front end 11a of the center line of the outer guide groove 11 is 90 degrees or less, in this case 65 degrees.

The connecting arm 8 is made by bending a band plate into a stepped shape, and has two support pins 1 attached to the outer side 8a of the vehicle with slide collars 13a and 13b attached.
2a and 12b are implanted, and each support pin 1
2a and 12b are slidably fitted into the guide grooves 10 and 11. As a result, the connecting arm 9 can be slid on the sliding door 3 in the longitudinal direction of the vehicle via the guide base 7, and can be put into an upright state shown by a solid line in FIG. 1 and a prone state shown by a two-dot chain line in the same figure. It is supported so as to be able to swing between the two.

Further, guide pins 14a and 14b are installed on the inside of the vehicle of the connection arm 8, and each pin 1
Guide rollers 15a, 15b are rotatably attached to 4a, 14b. Each of the guide rollers 15a, 15b includes the upper guide rail 9,
These guide rollers 15a, 15b are held between the guide pins 12a, 12 from the outside.
b is the front end portion 11a, 10 of the guide groove 11, 10;
In the upright state located at position a, they are arranged so that a predetermined distance C is created in the longitudinal direction of the vehicle.

Further, at this time, the inner guide roller 15b is located on the rear side of the front end portions 10a, 11a.

The upper guide rail 9 has a strip-like shape extending linearly from its front end to its rear end, and has an inner guide roller 15 at its front end.
A stopper portion 9a is formed to prevent forward movement of b.

Next, we will mainly discuss the effects of this example in the fifth section.
This will be explained using FIG.

In this embodiment, when the sliding door 3 is in the open state, the sliding door 3 is located outward in the vehicle width direction by the thickness thereof (FIG. 6a), and at this time, the connecting arm 8 is connected to its sliding pin. 12a, 12b
are located at the front ends of the guide grooves 11 and 10 of the guide base 7, and the guide rollers 15a and 15b sandwich the guide rail 9, and are in an upright state substantially perpendicular to the guide rail 9 (Fig. 5). a).

When the sliding door 3 is moved to the closed position that substantially coincides with the vehicle body opening 2a, the guide roller 15b
contacts the stopper portion 9a of the guide rail 9, and as a result, the connecting arm 8 rotates around the guide roller 15b, and is guided by the slide pins 12a, 12b of the connecting arm 8 to the guide base 7, i.e. The sliding door 3 moves toward the indoor side (FIGS. 5b and 6b).

When the sliding door 3 is further moved forward, the connecting arm 8 is further rotated, and thereby the guide base 7 is further moved inward, and as a result, the sliding door 3 is fitted into the door opening 2a and completely closed. When closed, its outer surface is flush with the side surface 2 of the vehicle body (Fig. 5c, Fig. 6c).

The opening operation of the sliding door 3 is shown in each of the above figures c,
Steps b and a are performed in the reverse order of the above.

In this way, in this embodiment, the connecting arm 8 is supported by the guide grooves 11 and 10 formed in the guide base 7 so as to be able to swing between the upright state and the prone state. The sliding door 3 can be displaced in the vehicle width direction while also being formed in a straight line. This makes it possible to simplify the shape of the guide rail 9, eliminate the bulge toward the inside of the vehicle, and solve problems of deterioration in aesthetic appearance and pressure on the interior space.

Furthermore, in the opening/closing operation described above, in the conventional structure shown in FIG. 8, there is a risk that the connecting arm 32 may be reversed, and the resistance force against the load in the direction of the passenger compartment is small, so there is room for improvement in terms of stability of the opening/closing operation. It was hot. On the other hand, in this embodiment, as shown in FIG. Since the angle is made smaller than 90 degrees, this generates a resistance force when the connecting arm 8 is reversed, thereby preventing the reversal, thereby increasing the stability of the opening/closing operation.

Furthermore, in this embodiment, the guide roller 15
a, 15b are placed apart from each other by C in the front-rear direction, and the guide rail 9 is held between them in this state, so that the holding force in the upright state shown by the solid line in FIG. 1 increases, and the force from the outside is The sliding door 3 does not wobble even if the sliding door 3 is operated, and from this point of view as well, the opening and closing operation of the sliding door 3 can be stabilized.

In the above embodiment, the guide grooves 10 and 11 are formed in a curved shape, but they do not necessarily have to be curved. For example, as shown in FIG. 7, they may be formed in parallel. Line A connecting the front end of the guide groove and tangent line B at the front end of the outer guide groove
(in this case coincides with the center line) and the angle α
The angle should be 90 degrees or less.

[Effect of idea]

As described above, according to the upper guide structure of a sliding door according to the present invention, two guide grooves are formed in the door body, a connecting arm is attached to the grooves so as to be rotatable in a horizontal plane, and Since the installed guide rollers are guided by guide rails formed on the vehicle body, the sliding door can be moved in the vehicle width direction without making the guide rails curved, and the shape of the guide rails can be simplified. This has the effect of improving the exterior appearance by eliminating the protrusion into the interior of the vehicle.

In addition, the angle between the line connecting the front ends of both guide grooves and the tangent to the outer guide groove is 90 degrees or less, and a pair of guide rollers are provided, and the guide rail is sandwiched between these rolling surfaces. This has the effect of preventing the connecting arm from reversing, improving resistance to loads in the vehicle width direction, and stabilizing the opening/closing operation of the sliding door.

[Brief explanation of drawings]

1 to 6 are diagrams for explaining the upper guide structure of a sliding door according to an embodiment of the present invention. FIG. 1 is a plan view showing the supporting state of the guide bracket, and FIG. Cross-sectional front view, 3rd
The figure is a perspective view of the sliding door, FIG. 4 is a side view of the automobile to which the above embodiment is applied, and FIGS.
b, c and Fig. 6 a, b, c are process diagrams for explaining the operation, Fig. 7 is a plan view showing a modification of the above embodiment, and Fig. 8 a, b is a conventional upper guide structure. FIG. 2 is a plan view and a sectional view. In the figure, 1 is a car, 2 is a side surface of the car body, 3 is a sliding door, 6 is an upper guide part, 7 is a guide base, 8 is a connecting arm, 9 is a guide rail, 1
0 and 11 are guide grooves, 15a and 15b are guide rollers, A is a line connecting the front ends, B is a tangent at the front end of the outer guide groove, and α is an angle formed by straight lines A and B.

Claims (1)

[Scope of utility model registration request] A connecting arm is attached to the top of a sliding door that is movable in the longitudinal direction along the side of the vehicle, and a guide roller attached to the inner end of the connecting arm is guided by a guide rail formed on the vehicle body. In the upper guide structure, two guide grooves extending in the longitudinal direction are provided at a predetermined interval in the vehicle width direction in the upper part of the sliding door, and
The angle between the line connecting the front edges of the guide grooves of the book and the tangent at the front edge of the outer guide groove is
90 degrees or less, the outer side portion of the connecting arm is swingably supported in a horizontal plane by both guide grooves, and a pair of guide rollers are attached to the inner side portion of the connecting arm so that their respective axes facing up and down, and with the connecting arm positioned at the front ends of both guide grooves, with a predetermined interval in the door movement direction, and the inner guide roller being positioned behind the front ends of the guide grooves. 1. An upper guide structure for a sliding door for a vehicle, characterized in that a guide rail extending linearly in the front-rear direction is sandwiched between the rolling surfaces of the guide rollers.