JP7411732B1 - Stopper structure for sliding door - Google Patents

Abstract

An object of the present invention is to provide a stopper structure for a sliding door that can appropriately restrict movement of a sliding door in a closed state.
[Solution] A stopper structure 4 for a sliding door includes a cylindrical stopper 60 provided on the body side of a vehicle, a pin 50 inserted through the stopper 60 so that its tip is exposed, and a cylinder provided on the sliding door side. The stopper holder 70 is fitted onto the pin 50 and comes into contact with the stopper 60 when the sliding door is closed, and the stopper 60 has a base 61 into which the pin 50 is inserted, and a base 61 into which the pin 50 is inserted. 61 , and includes a deformable portion 63 that can be elastically deformed by being pressed against the stopper 60 when the sliding door 3 is in the closed state.
[Selection diagram] Figure 5

Description

The present invention relates to a stopper structure used in a sliding door of a vehicle.

In recent years, efforts have become active to provide access to sustainable transport systems that take into consideration vulnerable transport participants such as the elderly and children. To achieve this goal, we are focusing on research and development to further improve traffic safety and convenience through development of vehicle comfort.

By the way, in terms of vehicle comfort, a sliding door in a closed state is fixed to the vehicle body (see Patent Document 1). In the structure described in Patent Document 1, when the sliding door is in a closed state, a holder provided on the sliding door side is fitted onto a pin provided on the vehicle body side, thereby positioning and fixing the sliding door. There is.

Japanese Patent Application Publication No. 2006-226042

In the structure of Patent Document 1, a stopper is externally fitted onto a pin on the vehicle body side, and the sliding door is positioned by bringing the holder into contact with the stopper at a distance of 0 mm. In such a structure, depending on the assembly accuracy, there is a possibility that the holder and the stopper may be separated from each other in the closed state. Therefore, it is desired that the holder and the stopper be brought into reliable contact with each other to appropriately restrict movement (rattling, etc.) of the sliding door in the closed state.

The present invention has been made in view of the above points, and it is possible to appropriately restrict the movement of a sliding door in a closed state, thereby improving the comfort of a vehicle and developing a sustainable transportation system. An object of the present invention is to provide a stopper structure for a sliding door that can contribute to the above.

In order to solve the above problems, the sliding door stopper structure of the present invention includes a cylindrical stopper provided on one side of the vehicle body and the sliding door, and a cylindrical stopper that is inserted through the stopper so that the tip is exposed. a pin, and a cylindrical stopper holder provided on the other side of the vehicle body and the sliding door, and when the sliding door is in a closed state, the stopper holder is fitted onto the pin and comes into contact with the stopper, The stopper includes a base portion through which the pin is inserted, and a deformable portion extending from a distal end side of the base portion and elastically deformable by being pressed by the stopper holder when the sliding door is in a closed state. It is characterized by having the following.

According to the present invention, it is possible to appropriately restrict the movement of a sliding door in a closed state, thereby improving the comfort of a vehicle and contributing to the development of a sustainable transportation system.

1 is a side view schematically showing a vehicle to which a sliding door structure according to an embodiment of the present invention is applied. 1 is a plan view schematically showing a sliding door structure to which a sliding door stopper structure according to an embodiment of the present invention is applied. 1 is a plan view schematically showing a sliding door structure to which a sliding door stopper structure according to an embodiment of the present invention is applied. 1 is a plan view schematically showing a sliding door structure to which a sliding door stopper structure according to an embodiment of the present invention is applied. FIG. 1 is a cross-sectional view schematically showing a slide door stopper structure according to an embodiment of the present invention. FIG. 1 is a cross-sectional view schematically showing a slide door stopper structure according to an embodiment of the present invention. FIG. 1 is a cross-sectional view schematically showing a slide door stopper structure according to an embodiment of the present invention. FIG. 1 is a cross-sectional view schematically showing a slide door stopper structure according to an embodiment of the present invention. It is a graph which shows an example of the relationship between the wrap amount of a stopper and a stopper holder, and reaction force.

Next, embodiments of the present invention will be described in detail with reference to the drawings as appropriate. In the reference drawings, expressions representing directions such as front and back, left and right, and up and down are based on the traveling direction of the vehicle and the occupant (driver).

<Sliding door structure>
As shown in FIG. 1, a sliding door structure 1 according to an embodiment of the present invention includes a sliding door structure 1 that opens and closes an opening 2a formed in a side wall portion that is an end portion (left end portion) in the vehicle width direction in a vehicle body 2 of a vehicle C. Applied to door 3. The sliding door 3 opens and closes the opening 2a by sliding along the vehicle body 2.

<Structure on the vehicle body side>
As shown in FIG. 2, the sliding door structure 1 includes a rail 11 and a vehicle body side bracket 21, a rail 12, a rail 13 and a vehicle body side bracket 23 as a structure on the vehicle body 2 (see FIG. 1) side.

The rail 11 is a metal groove-shaped member extending in the front-rear direction at the upper part of the vehicle body 2 (the upper edge of the opening 2a). The front end portion of the rail 11 forms an inclined portion 11a that extends inward in the vehicle width direction as it goes forward.
The vehicle body side bracket 21 is a metal plate-like member extending outward in the vehicle width direction from the front end portion (slope portion 11a) of the rail 11.

The rail 12 is a metal groove-shaped member that extends in the front-rear direction at the middle part of the vehicle body 2 in the height direction (rear side of the opening 2a). The front end portion of the rail 12 forms an inclined portion 12a that extends inward in the vehicle width direction as it goes forward.
In this embodiment, the rail 12 is integrated with the vehicle body (side wall portion) 2.

The rail 13 is a metal groove-shaped member extending in the front-rear direction at the lower part of the vehicle body 2 (lower edge of the opening 2a). The front end portion of the rail 13 forms an inclined portion 13a that extends inward in the vehicle width direction as it goes forward.
The vehicle body side bracket 23 is a metal plate-like member extending outward in the vehicle width direction from the front end portion (slanted portion 13a) of the rail 13.

<Structure on the sliding door side>
The sliding door structure 1 includes, as a structure on the sliding door 3 side, a door side bracket 31 and a roller 41, a door side bracket 32 and a roller 42, and a door side bracket 33 and a roller 43.

The door-side bracket 31 is a metal plate-like member that extends inward in the vehicle width direction from the upper end and front end of the sliding door 3 .
The roller 41 is rotatably held at the tip of the door-side bracket 31, and is wholly or partially accommodated in the groove of the rail 11 in a rotatable (or sliding) manner.

The door-side bracket 32 is a plate-shaped member made of metal or resin and extends inward in the vehicle width direction from the heightwise intermediate portion and rear end portion of the sliding door 3 .
The roller 42 is rotatably held at the tip of the door-side bracket 32, and is wholly or partially housed in the groove of the rail 12 in a rotatable (or slidable) manner.

The door-side bracket 33 is a metal plate-like member that extends inward in the vehicle width direction from the lower end and front end of the sliding door 3 .
The roller 43 is rotatably held at the tip of the door-side bracket 33, and is wholly or partially housed in the groove of the rail 13 in a rotatable (or sliding) manner.

In this sliding door structure 1, the sliding door 3 moves in the front-rear direction along the rails 11, 12, and 13 by a control section (not shown) controlling a power source (motor, etc.) of the sliding door 3. For example, the sliding door 3 moves forward from the open state located at the rear, and at the final stage moves diagonally inward in the vehicle width direction, thereby entering the closed state that closes the opening 2a (Fig. 2 → Fig. 3 → Figure 4). In addition, the sliding door 3 moves diagonally outward in the vehicle width direction from the closed state to the initial stage and moves rearward, thereby entering the open state in which the opening 2a is opened (FIG. 4→FIG. 3→FIG. 2). .

<Sliding door stopper structure>
The sliding door structure 1 includes a sliding door stopper structure (hereinafter sometimes simply referred to as a stopper structure) 4. The stopper structure 4 is provided corresponding to each of the rails 11 and 13.

As shown in FIG. 5, the stopper structure 4 includes a pin (stopper pin) 50 and a stopper 60 provided on one side of the vehicle body 2 and the sliding door 3, and a stopper holder 70 provided on the other side of the vehicle body 2 and the sliding door 3. and. In this embodiment, the pin 50 and the stopper 60 are provided on the vehicle body 2 side, and the stopper holder 70 is provided on the sliding door 3 side. Note that, in FIGS. 5 to 9, among the vehicle body side bracket 21, pin 50, stopper 60, and stopper holder 70, the vehicle body side bracket 21, the stopper 60, and the stopper holder 70 are shown as cross sections.

≪Pin≫
The pin 50 is a metal bar-shaped member attached to the vehicle body side bracket 21. The pin 50 integrally includes a head 51 and a shaft portion 52. A large diameter portion 52a having a larger diameter than other portions of the shaft portion 52 is formed on the head 51 side of the shaft portion 52. The pin 50 is inserted into the hole of the vehicle body side bracket 21 (or the vehicle body side bracket 23), and the head 51 and the large diameter portion 52a sandwich the peripheral edge of the hole, so that the pin 50 is inserted into the vehicle body side bracket 21 (or the vehicle body side bracket 23). It is fixed to the vehicle body side bracket 23). The shaft portion 52 of the pin 50 is provided so as to be inclined toward the rear as it goes outward in the vehicle width direction.

≪Stopper≫
The stopper 60 is a resin-made cylindrical member that is fitted onto the base end side of the shaft portion 52 of the pin 50 . In this embodiment, the stopper 60 is made of an elastic material. The axial dimension of the stopper 60 is smaller than the axial dimension of the shaft portion 52 of the pin 50. The stopper 60 integrally includes a base portion 61, a constricted portion 62, and a deformable portion 63.

The bottom surface of the base 61 is in contact with the vehicle body side bracket 21 (or the vehicle body side bracket 23). A large diameter portion 61 a that can be externally fitted onto the large diameter portion 52 a of the pin 50 is formed on the inner peripheral surface side of the base portion 61 . The stopper 60 is restricted from moving in the axial direction with the base portion 61 externally fitted onto the large diameter portion 52a.

The constricted portion 62 is formed at the boundary between the base portion 61 and the deformed portion 63. The constricted portion 62 has a reduced diameter with respect to the base portion 61. That is, the outer circumferential surface of the constricted portion 62 is set to have a smaller diameter than the outer circumferential surface of the base portion 61.

The deformed portion 63 extends from the distal end of the constricted portion 62 to the side opposite to the base portion 61 . The deformable portion 63 is elastically deformed by being relatively pressed in the axial direction by the stopper holder 70 when the sliding door 3 is in the closed state. In this state, the deforming portion 63 applies a pressing force or a reaction force to the stopper holder 70 and causes the stopper holder 70 to slide in a direction perpendicular to the axial direction of the pin 50 due to the frictional resistance at the contact surface with the stopper holder 70. The movement of door 3 is restricted. In addition, the deformable portion 63 maintains a state in contact with the stopper holder 70 by regulating the movement of the stopper holder 70, thereby preventing the generation of abnormal noise during driving.

In this embodiment, the deformable portion 63 has a trumpet shape that extends radially outward from the base end (the end on the constricted portion 62 side) of the deformable portion 63 toward the distal end. The deformable portion 63 having a trumpet shape is elastically deformed so as to spread outward in the radial direction by coming into contact with the stopper holder 70 . It is desirable that the deformed portion 63 has a bowl shape with an opening on the stopper holder 70 side (for example, a spherical crown shape having a center on the stopper holder 70 side and is smaller than a hemisphere).

≪Stopper holder≫
The stopper holder 70 is a resin-made cylindrical member attached to the tip of the door-side bracket 31 (or the door-side bracket 33). In this embodiment, the stopper holder 70 is made of a harder material than the stopper 60. The inner diameter of the stopper holder 70 (the diameter of the hole 71) is approximately equal to the outer diameter of the shaft portion 52 of the pin 50. Further, the outer diameter of the stopper holder 70 is larger than the outer diameter of the deformable portion 63 of the stopper 60 (preferably, the outer diameter in a state of being pressed by the stopper holder 70 and elastically deformed).

<Operation example of stopper structure>
When the sliding door 3 is closed, the stopper holder 70 is fitted onto the shaft portion 52 of the pin 50 by moving together with the sliding door 3 in the axial direction of the pin 50 . Subsequently, as shown in FIG. 6, the stopper holder 70 moves in the axial direction of the pin 50 together with the slide door 3, and comes into contact with the deformed portion 63 of the stopper 60 (see _P1 in FIG. 9). Subsequently, as shown in FIG. 7, the stopper holder 70 moves in the axial direction of the pin 50 together with the sliding door 3, thereby pressing the deformable portion 63 of the stopper 60 and elastically deforming the deformable portion 63 (FIG. 10). (See page ₂ ). In this embodiment, the deformable portion 63 is elastically deformed so as to open outward in the radial direction. Here, in the slide door stopper structure 4, the deformable portion 63 has a bowl shape, thereby preventing the deforming portion 63 from being rapidly deformed (warping deformation) at the initial stage of pressing, and providing a suitable reaction to the stopper holder 70. can give power. Moreover, the sliding door stopper structure 4 has the constricted portion 62, so that the deformable portion 63 can easily open outward in the radial direction.

Here, as shown in FIG. 8, depending on the assembly error of the sliding door 3, the stopper holder 70 may further press the stopper 60 (the sliding door 3 is in a strongly closed state). In this case, the constricted portion 62 is elastically deformed so as to collapse in the axial direction (see P ₂ to P ₃ in FIG. 9).

Here, as shown in the graph of FIG. 9, the reaction force applied by the stopper 60 to the stopper holder 70 falls within a predetermined range _X1 , and the reaction force becomes excessive (enters a range _X2 ). is prevented.

Furthermore, depending on the assembly error of the sliding door 3, the amount of overlap between the stopper 60 and the stopper holder 70 may become small even when the sliding door 3 is fully closed. Even in this case, within the range of P ₁ to P ₃ , the stopper 60 comes into contact with the stopper holder 70 and can apply a reaction force to the stopper holder 70 .

The sliding door stopper structure 4 according to the embodiment of the present invention includes a cylindrical stopper 60 provided on one side of the vehicle body 2 and the sliding door 3 of a vehicle C, and a cylindrical stopper 60 that is inserted through the stopper 60 so that its tip is exposed. and a cylindrical stopper holder 70 provided on the other side of the vehicle body 2 and the sliding door 3. When the sliding door 3 is in a closed state, the stopper holder 70 is attached to the pin 50 externally. The stopper 60 has a base 61 into which the pin 50 is inserted, and extends from the tip side of the base 61. When the slide door 3 is closed, the stopper 60 A deformable portion 63 that can be elastically deformed by being pressed by the holder 70 is provided.
Therefore, the sliding door stopper structure 4 can suitably restrict the movement (rattling, etc.) of the sliding door 3 in the closed state due to external forces caused by the running of the vehicle C, and can prevent the generation of abnormal noise. can. Such a sliding door stopper structure 4 can improve the comfort of the vehicle C and contribute to the development of a sustainable transportation system.

In the sliding door stopper structure 4, the deformable portion 63 has a trumpet shape that extends radially outward from the base end toward the distal end of the deformable portion 63.
Therefore, the sliding door stopper structure 4 can generate a suitable reaction force between the deformable portion 63 and the stopper holder 70 with a simple structure.

In the sliding door stopper structure 4, the tip of the base 61 has a constricted outer peripheral surface with a reduced diameter.
Therefore, the slide door stopper structure 4 generates a suitable reaction force between the deformation portion 63 and the stopper holder 70 even when the slide door 3 is in the strongly closed state, and prevents movement (rattling, etc.) of the slide door 3 in the strongly closed state. can be suitably regulated.

In the sliding door stopper structure 4, the stopper 60 and the pin 50 are provided on the vehicle body 2 side, and the stopper holder 70 is provided on the sliding door 3 side.
Therefore, in the sliding door stopper structure 4, by providing the relatively lightweight stopper holder 70 on the side of the sliding door 3 that moves with respect to the vehicle body 2, it is possible to suppress an increase in the weight of the sliding door 3. In addition, in the slide door stopper structure 4, since the pin 50 is provided on the vehicle body 2 side, the pin 50 is provided on the sliding door 3 side that moves relative to the vehicle body 2. Interference with other members can be prevented.

Although the embodiments of the present invention have been described above, the present invention is not limited to the embodiments described above, and can be modified as appropriate without departing from the gist of the present invention. For example, the stopper 60 and pin 50 may be provided on the sliding door 3 side, and the stopper holder 70 may be provided on the vehicle body 2 side. Further, the deformed portion 63 exhibiting a trumpet shape may have a notch or the like in a portion in the circumferential direction.

1 Sliding door structure 2 Vehicle body 3 Sliding door 4 Sliding door stopper structure 50 Pin 60 Stopper 62 Neck part 63 Deformed part 70 Stopper holder C Vehicle

Claims (3)

A cylindrical stopper provided on one side of the vehicle body and the sliding door;
a pin inserted through the stopper so that its tip is exposed;
a cylindrical stopper holder provided on the other side of the vehicle body and the sliding door;
Equipped with
When the sliding door is in a closed state, the stopper holder is fitted onto the pin and comes into contact with the stopper,
The stopper is
a base through which the pin is inserted;
a deformable part that extends from the tip end side of the base and is elastically deformable when pressed by the stopper holder when the sliding door is in the closed state;
Equipped with
The deformed portion has a trumpet shape extending radially outward from the base end toward the distal end of the deformed portion.
A stopper structure for sliding doors characterized by: The stopper structure for a sliding door according to claim 1 , wherein the distal end portion of the base portion has a constricted shape in which the outer peripheral surface is reduced in diameter. The stopper and the pin are provided on the vehicle body side,
The stopper structure for a sliding door according to claim 1 or 2, wherein the stopper holder is provided on the sliding door side.

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