JP6598620B2 - Sliding door structure - Google Patents

Description

  The present invention relates to a sliding door structure for a vehicle.

There exists a thing of patent document 1 as an example of this kind of sliding door structure.
The sliding door structure described in the same document has an upper end portion of the sliding door when a large load is applied, for example, when a load or an occupant collides from the vehicle interior side toward the sliding door with the sliding door closed. The gap between the vehicle and the side of the vehicle body is to be reduced. As a means for that, in the same document, two upper and lower folding assumption lines are set from the front to the rear of the sliding door, and when the load acts on the sliding door, the sliding door It is deformed so as to be bent, and the upper end of the slide door is displaced toward the vehicle interior side. As means for embodying the folding assumption line, a plurality of fragile portions are provided at the front portion and the rear portion of the inner panel of the slide door.

  However, such conventional means still has room for improvement as described below.

  That is, when the slide door is closed, the front side of the slide door has a two-point support structure in which upper and lower sliding rollers are supported by the slide rail on the vehicle body side. On the other hand, on the rear side of the sliding door, although the door lock mechanism and the sliding center roller are supported on the vehicle body side, both of them are provided in the intermediate portion in the vertical height direction of the sliding door. For this reason, when a large load acts on the slide door from the vehicle interior side and the slide door is deformed, the rear upper end of the slide door is displaced most outward in the vehicle width direction, and the large gap is the largest in this portion. It is likely to occur. Therefore, it is desirable to reduce the gap in this part.

  On the other hand, in the conventional means, when a load from the vehicle interior side is received, bending deformation is caused to occur along a line covering substantially the entire region from the front portion to the rear portion of the slide door. For this reason, the deformation state of the front part of the slide door and the deformation state of the rear part greatly influence each other, and depending on how the front side of the slide door is deformed, the rear upper end of the slide door is located on the indoor side. There is a risk that it will not be deformed to be sufficiently close. In order to eliminate this as much as possible, it is necessary to accurately set the position and strength of the plurality of weak parts provided on the slide door in an optimum state, but such a thing is difficult in practice, and increases the productivity. It will be a hindrance.

  Furthermore, in the said conventional means, it is necessary to provide a some weak part in a slide door. This may reduce the strength of the entire slide door. Therefore, it is not preferable from the viewpoint of increasing the door strength or durability against an impact during the opening / closing operation of the slide door and other impacts.

JP2013-252830A

The present invention has been conceived under the circumstances as described above, and when a large load acts on the slide door from the vehicle interior side, a large gap is formed between the rear upper end of the slide door and the side surface of the vehicle body. It is an object of the present invention to provide a sliding door structure that can appropriately prevent the occurrence of the occurrence of the problem by means of a simple configuration.

  In order to solve the above problems, the present invention takes the following technical means.

The sliding door structure provided by the present invention is configured by combining an outer panel and an inner panel, and a window portion and a window frame portion that forms the window portion are formed in an upper region, and the window frame portion. Of the rear portion, a sliding door in which the area of the window portion above the belt line height is a rear pillar, and the rear portion of the sliding door is located above the sliding center roller. and includes a door lock device, and a sliding door structure, along the belt line of the window portion has a belt line reinforcement for the outer panel and for the inner panel extending in the longitudinal direction of the vehicle, for the outer panel the beltline reinforcement, while the rear portion is provided so as to be positioned below the adjacent region of the rear pillar, front Beltline reinforcement for inner panels, stiffness than in the lower adjacent region is configured not provided, or other part portion located below the adjacent region of the rear pillar of the rear pillars Due to the low configuration, in the lower adjacent region of the rear pillar, the inner panel side is lower in strength than the outer panel side, and the lower side of the rear pillar of the inner panel is lower. among them, a region lower than belt line reinforcement for the outer panel and for the inner panel, the area above the attachment point of the center roller, extending from the door lock device to the attachment point of the center roller except for the reinforcing member that is partially provided in the range of up to, or integral with the belt line reinforcement for the inner panel It is characterized in that the inner panel reinforcing member separate there is a configuration that is not provided.
Here, the “partially provided reinforcing member” corresponds to, for example, a reinforcing member for a door lock device, and such a partial reinforcing member does not hinder the operation and effect of the present invention described later.

According to such a configuration, the following effects can be obtained.
That is, when a large load is applied to the slide door from the vehicle interior side, the inner panel and the outer panel both move the rear portion of the slide door from the lower adjacent region of the rear pillar to the center roller mounting location. A phenomenon that causes deformation that twists inwardly occurs. However, in that case, the rear pillar is hardly deformed on the outer panel side reinforced by the beltline reinforcement, and is in a so-called stretched state, so that only the inner panel causes the torsional deformation. Pull the outer panel. Due to the pulling action caused by the torsional deformation of the inner panel, the upper side of the outer panel of the rear pillar falls to the vehicle interior side so as to bow together with the inner panel. As a result, it is possible to improve safety by preventing a large gap from being formed between the upper end portion of the rear pillar, that is, the rear upper end of the slide door and the side surface of the vehicle body.
The above-described action is an action on the rear side of the slide door, and unlike the prior art, it can be caused almost without being affected by the operation of the front part of the slide door. Therefore, the reliability and reliability of preventing a large gap from being generated between the rear upper end of the slide door and the vehicle body can be improved.
Further, according to the present invention, unlike the prior art, it is not necessary to provide a plurality of fragile portions on the slide door, which is preferable in increasing the strength and durability of the slide door. Furthermore, in the present invention, the configuration is simple, and it is not necessary to set the dimensional accuracy of each part so high. For this reason, compared with the prior art which needed to provide the position and intensity | strength of a some weak part in an optimal state with sufficient precision, productivity of a slide door can be improved and manufacturing cost can also be made cheap.

  Other features and advantages of the present invention will become more apparent from the following description of embodiments of the present invention with reference to the accompanying drawings.

It is a schematic side view which shows an example of the vehicle which has a sliding door. (A) is the side view from the vehicle interior side which shows an example of the sliding door structure which concerns on this invention, (b) is IIb-IIb principal part sectional drawing of (a), (c), It is IIc-IIc principal part sectional drawing of (a). It is a schematic sectional drawing which shows typically the deformation | transformation state of a slide door.

Hereinafter, preferred embodiments of the present invention will be specifically described with reference to the drawings.
In the drawing, the arrow Fr indicates the front of the vehicle, the arrow Up indicates the upper side in the vehicle height direction, and the arrow Out indicates the outer side in the vehicle width direction.

  In the sliding door structure A shown in FIG. 1, the same means as conventionally known is adopted as means for sliding the sliding door SD in the vehicle front-rear direction. Specifically, an upper roller 7a, a lower roller 7b, and a center roller 7c for sliding are attached to the vicinity of the upper end and the lower end of the front portion of the slide door SD and the middle portion of the rear portion in the vertical height direction. . These are movable along the upper, lower, and center slide rails 70a to 70c provided on the side surface of the vehicle body. A door lock for fixing the slide door SD to the vehicle body when the slide door SD is closed is located at an intermediate portion in the vertical direction in the rear portion of the slide door SD and higher than the center roller 7c. The device 6 is built in. Although omitted in the drawing, the door lock device 6 has a lock for engaging with a striker provided on the vehicle body side, for example. When the slide door SD is closed, the slide door SD is fixedly supported on the vehicle body at four points: the upper roller 7a, the lower roller 7b, the center roller 7c, and the door lock device 6. Therefore, when a load is applied to the slide door SD from the vehicle interior side, a large gap is likely to be generated in the region n1 between the rear upper end 18 of the slide door SD and the side surface of the vehicle body.

  As shown in FIG. 2, the slide door SD is configured by combining an outer panel 1 and an inner panel 2, and a window portion 3 and a window frame portion 4 that forms the window portion 3 are disposed at a position near the upper portion. (In the drawing, the window glass and its lifting mechanism are omitted).

The slide door SD includes belt-line reinforcements 5A and 5B for belt-like outer panels and inner panels that extend in the vehicle front-rear direction along the belt line 30 of the window 3 (the lower side of the window 3).
The belt line reinforcement 5A for the outer panel is provided so as to extend further from the lower side of the belt line 30 to the rear of the vehicle and to be positioned also in the lower adjacent region of the rear pillar 40 of the window frame portion 4. On the other hand, the belt line reinforcement 5B for the inner panel has a dimension La shorter than the belt line reinforcement 5A for the outer panel, and does not extend from the lower side of the belt line 30 to the rear of the vehicle. The rear pillar 40 is provided so as not to be located in the lower adjacent region .

Of the inner panel 2 of the slide door SD, the lower part of the rear pillar 40 is lower than the belt line reinforcements 1 and 2 for the outer panel and the inner panel, and is located above the attachment position of the center roller 7c. The specific region Sa is configured such that the inner panel reinforcing member is not provided except for the lock reinforcement 60 as a partial reinforcing member for the door lock device 6. On the outer panel 1 side, there is provided a belt-like reinforcement 8 for increasing the tension rigidity extending in the vehicle longitudinal direction from the front part to the rear part of the slide door SD, and a part of the reinforcement 8 corresponds to the specific region Sa. Located in the place.

  Next, the operation of the sliding door structure A will be described with reference to FIG.

First, for example, when a load or an occupant vigorously collides with a region near the door lock device 6 and a large load F acts on the region from the vehicle interior side toward the outside of the vehicle, the lower side of the rear pillar 40 is adjacent to the lower side. In a specific area Sa from the area to the attachment position of the center roller 7c, a torsional force T is generated to try to draw both the rear part of the inner panel 2 and the rear part of the outer panel 1 into the vehicle interior side. However, the rear part of the outer panel 1 that is reinforced by the belt line reinforcement 5A for the outer panel is not easily twisted and is in a state of being stretched. For this reason, the inner panel 2 side undergoes a relatively large torsional deformation due to the torsional force T, and a tensile force N that attracts the outer panel 1 is generated. Then, due to this tensile force N, the upper side of the outer panel 1 of the rear pillar 40 falls to the vehicle interior side so as to bow together with the inner panel 2 as shown in FIG. A bent portion is generated at a location corresponding to the specific region Sa). Thus, a large gap is not generated between the rear upper end 18 of the slide door SD and the side surface of the vehicle body, and safety can be improved.

  The above-described operation is an operation that occurs on the rear side of the slide door SD, and can be generated almost independently of the deformation of the front portion of the slide door SD. Therefore, there is an advantage that the reliability and reliability of preventing a large gap from being generated between the rear upper end 18 of the slide door SD and the side surface of the vehicle body can be obtained. Moreover, since it is not necessary to provide a some weak part in each place of the slide door SD, it will become preferable also in improving the general intensity | strength and durability of the slide door SD. Since the configuration of the slide door SD described above is simple, the manufacturing is easy, the productivity can be improved, and the manufacturing cost can be reduced.

  The present invention is not limited to the contents of the above-described embodiment. The specific configuration of each part of the sliding door structure according to the present invention can be variously modified within the intended scope of the present invention.

In the above-described embodiment, the belt line reinforcement 5B for the inner panel is configured not to be positioned in the lower adjacent region of the rear pillar 40, but is not limited thereto. In the present invention, a part of the belt line reinforcement 5B for the inner panel is disposed in the lower adjacent region of the rear pillar 40, and the rigidity of the part is made lower than the rigidity of the other part of the belt line reinforcement 5B. Also good. Even in this case, the strength of the inner panel 2 in the lower adjacent region of the rear pillar 40 can be made lower than the strength of the outer panel 1, and the same effect as in the above-described embodiment can be obtained.
Even when a partial reinforcing member is provided in a range from the door lock device to the attachment position of the center roller, it is possible to appropriately obtain the intended effect of the present invention. In the invention, the presence or absence of the partial reinforcing member described above does not matter. The lock reinforcement 60 may be provided in a shape that extends slightly downward, for example.

A Slide door structure SD Slide door 1 Outer panel 2 Inner panel 3 Window 30 Belt line 4 Window frame 40 Rear pillar 5A Belt line reinforcement 5B for outer panel Belt line reinforcement 6 for inner panel Door lock device 60 Lock reinforcement (part Reinforcing member provided)
7c Center roller

Claims (1)

An outer panel and an inner panel are combined, and a window portion and a window frame portion forming the window portion are formed in a region closer to the upper portion, and a belt line of the window portion of the rear portion of the window frame portion A sliding door whose area is higher than the height of the rear pillar ,
A door locking device provided at the rear of the sliding door and positioned above the sliding center roller;
A sliding door structure comprising:
Comprises a belt line reinforcement for the outer panel and for the inner panel extending in the longitudinal direction of the vehicle along the belt line of the window,
The belt line reinforcement for the outer panel is provided so that the rear part is located in the lower adjacent region of the rear pillar, while the belt line reinforcement for the inner panel is provided in the lower adjacent region of the rear pillar. Or a portion located in the lower adjacent region of the rear pillar has a lower rigidity than the other portions , thereby lower lower adjacent region of the rear pillar. In, the inner panel side is lower in strength than the outer panel side,
The lower part of the inner panel below the rear pillar is lower than the belt line reinforcement for the outer panel and the inner panel, and is higher than the attachment position of the center roller. Except for the reinforcing member partially provided in the range from the center roller to the mounting position of the center roller, the inner panel reinforcing member for the inner panel or a separate inner panel reinforcing member is not provided. The sliding door structure is characterized by that.

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