JPH0437766Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an opening/closing body structure for a vehicle, and more particularly to an improvement in the structure of a side door or a rear door in a van-type vehicle or the like.

(Prior Art) Conventionally, various types of side and rear doors have been used in van-type vehicles.
For example, there are various types of doors, such as those in which the door slides back and forth along the side wall, those in which the upper edge of the door is hinged to the vehicle body and the entire door rotates upward around the hinge joint, and those in which the door opens on double doors. There is.

On the other hand, van-type vehicles have various uses such as leisure and business use. For leisure purposes, for example, a car may be used as a so-called camping car. In this case, it is common practice to connect a tent to the side of the car at the campsite to increase the living space. It is preferable to have a large open area. Furthermore, when the vehicle is used for commercial purposes, luggage is often loaded into the vehicle interior, so it is preferable to increase the open area of the door to facilitate loading and unloading of luggage into the vehicle interior.
From this point of view, in the case of conventional sliding type doors, a space is required to hold the sliding door, so the open area cannot be made very large. On the other hand, doors that are hinged and pivot upward, and doors that open double doors can have a larger opening area, but when the door is opened or closed, the edge of the door moves outward from the side wall of the vehicle. Since the door protrudes a lot, there is a problem that if there is an obstacle near the car, the door will not be able to open or close.

For this reason, for example,
As disclosed in No. 1, a vehicle interior rail and a vehicle interior roller are provided on the vehicle body side, and a door rail and a door roller are provided on the door side, so that the vehicle interior rail guides the door roller and the door rail guides the vehicle interior roller. A device has been proposed in which the door is opened and closed by sliding it up and down without protruding outward.

(Problems to be solved by the invention) In the above proposal, the open area of the door can be increased, and the door does not protrude outward when the door is opened or closed. There is a problem in that the method of assisting to reduce the force is difficult. In other words, this door has a large opening area and is heavy, so the operating force is too large to open and close it manually, so some kind of assisting means must be provided, but the entire stroke of the door moving up and down is too large. Since the means for assisting the door is very large and has a complicated structure, it is actually difficult to perform the assist well over the entire stroke of the vertical movement of the door.

Furthermore, when opening the door, there is a problem that the distance between two points supporting the door becomes small near the end of the opening operation, making the support of the door unstable. That is, the vehicle interior roller guided by the door rail and the door roller guided by the vehicle interior rail approach each other as the door is opened, making the support of the door unstable. Furthermore, since the support portion of the door and the center of gravity of the door are misaligned at this time, a larger force is applied to the support portion of the door due to the weight of the door, resulting in a problem that the operating force for opening and closing tends to be heavy.

In addition, in the case of a door that is hinged to the vehicle body and rotates upward, the assist means for the door is such that one end is connected to the vehicle body and the other end is are each connected to the door, and a stay damper whose one end is connected to the arm member and the other end is connected to the vehicle body, or one end of the stay damper is connected directly to the door without using the arm member. This has been known for some time.

The present invention was developed in view of the above-mentioned problems, and its purpose is to create a door with a large open area, less protrusion of the door outward when the door is opened and closed, and a compact structure. It is an object of the present invention to provide an opening/closing body structure that allows easy opening/closing operations using simple assisting means.

(Means for solving the problem) In order to achieve the above object, the solution of the present invention includes guide rails extending vertically on both sides of the opening provided in the side wall of the vehicle body, and guide rails arranged at the bottom of both sides. a door having a roller rotatably inserted into the guide rail and slidably up and down in the opening; one end pivotally attached to the upper edge of the door;
and a roof member whose other end is pivotally connected to the roof panel. Furthermore, as an assisting means for reducing the operating force when opening and closing the door, it is arranged between the roof member and the roof panel,
The structure includes a torsion bar and a stay damper that balance the weight of the door and roof member.

(Function) With the above configuration, in the present invention, when the door is opened from the closed state, when the door is pushed upward, the lower part of the door is guided by the roller rolling on the guide rail. Move upward along the guide rail. On the other hand, since the upper edge of the door is pivotally connected to the roof member, as the roof member rotates around the pivot point with the roof panel, it moves upward and is pulled toward the roof panel. . Thereby, the door can be opened without protruding outward from the side wall of the vehicle body.
The door can also be closed by performing the opposite operation.

When opening and closing such a door, the weights of the door and the roof member are balanced by the torsion bar and the stay damper as assisting means, so that the door can be easily opened and closed.

Furthermore, the torsion bar and stay damper are disposed between the roof panel and the roof member, and balance the moment around the pivot joint between the two with the weight of the door and roof member, so that the entire opening and closing of the door can be completed. Even when assisting strokes, these operating strokes can be made smaller and the settings can be made easier. Moreover, the area of the opening, that is, the open area of the door is not narrowed due to the arrangement of both.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

1 and 2 show an automobile equipped with an opening/closing body structure according to an embodiment of the present invention, in which 1 is a car body, 2 is a car body;
3 is a door opening provided on the rear side wall of the vehicle body 1;
is a door that opens and closes the opening 2, and the door 3
, the lower part of which is the guide rail 23, 34, which will be described later.
It is provided so that it can be slid up and down while being guided by.

One end of a roof member 4 is pivotally attached to the upper edge of the door 3, and the other end of the roof member 4 is pivotally attached to a roof panel 5. A pair of torsion bars 6, 6 and a stay damper 7, 7 are arranged between the roof member 4 and the roof panel 5, respectively. One end of each torsion bar 6 is connected to the roof member 4, and the other end is connected to the roof panel 5. Further, one end of each stay damper 7 is pivotally connected to the roof member 4, and the other end is pivotally connected to the roof panel 5. Both the torsion bar 6 and the stay damper 7 apply upward rotational force to the roof member 4 to balance the own weight of the roof member 4 and the door 3, thereby reducing the operating force when opening and closing the door 3. It's becoming like that.

Next, the structure of the vehicle body 1 that supports the door 3 and the roof member 4 will be explained with reference to FIGS. 3 to 11. Figure 3 shows door 3 and roof member 4
FIG. 2 is a perspective view showing the vehicle body with the parts removed. The upper part of the vehicle body 1 is covered by a roof panel 5, and a recess 5a having approximately the same shape as the roof member 4 is formed in the roof panel 5.
is covered by the roof member 4, the recess 5a
The upper surface of the roof panel 5 except for the upper surface of the roof member 4 is flush with the upper surface of the roof member 4, thereby forming the roof of the vehicle body 1. Roof member 4
FIG. 4 shows this as seen from the bottom side.
As can be seen from this figure, on the lower surface of the roof member 4, there is a pair of first hinge brackets 8, 8 on one end side.
is fixedly installed, and a pair of second
Hinge brackets 9, 9 are fixedly installed. The first hinge brackets 8, 8 are attached to the roof panel 5.
The roof member 4 is hingedly connected to a pair of third hinge brackets 10, 10 fixedly installed in the recess 5a of the roof member 4.
It is pivotally attached to the roof panel 5 at 8.
The second hinge brackets 9, 9 are for hinge connection to the upper edge of the door 3, which will be described later. In addition, torsion bar 6,
6 and the stay dampers 7, 7 are connected to the roof panel 5.
A pair of fourth hinge brackets 11, 11 for pivotally connecting one end of the stay dampers 7, 7 are fixed to the recess 5a of the roof panel 5. It is set up.

FIG. 5 is a cross-sectional view of the roof section taken along the - line in FIG. Reinforcements 12 and 13, which extend in the longitudinal direction of the vehicle body, are joined to the upper edge of the opening 2 and at the center of the roof at a portion corresponding to the recess 5a, respectively. A seal member 14 is attached to the joint between the end of the reinforcement 12 on the upper edge side of the door opening and the end of the roof panel 5.
When the door 3 is closed, the door 3 comes into contact with the upper inner surface of the door 3 to prevent rainwater from entering the vehicle interior. FIG. 6 is a sectional view taken along the - line in FIG. 3,
A reinforcement 15 extending in the vehicle width direction is joined to the lower surface of a recess 5a formed in the roof panel 5.

FIG. 7 is a cross-sectional view showing the center pillar 20 that constitutes the front edge of the door opening 2, taken along the - line in FIG. This center pillar 20 has a closed cross-section structure with an outer panel 21 and an inner panel 22, and a vertical surface 21a extending in the vehicle width direction formed at the rear of the outer panel 21 has upper and lower surfaces facing the door opening 2. A guide rail 23 extending to is joined. A roller 24 attached to the lower front end of the door 3 is inserted into the guide rail 23, and the roller 24 is guided by the guide rail 23 and can roll up and down. A sealing member 25 is attached to the rear end joint between the outer panel 21 and the inner panel 22, and comes into contact with the inner surface of the door 3 when the door 3 is closed.

Figure 8 shows the door opening 2 along the third - line.
It is a sectional view showing the lower structure of. The floor panel 26 that constitutes the floor part of the vehicle body has an outer panel 2.
7 and inner panel 28 are joined, and these 3
The panels 26, 27, and 28 form a closed cross section extending in the longitudinal direction of the vehicle body. A sealing member 29 is attached to the end joint between the outer panel 27 and the floor panel 26 so as to face outward and come into contact with the lower inner surface of the door 3 when the door 3 is closed. FIG. 9 is a sectional view showing the lower structure of the door opening 2 along the - line in FIG. 3. FIG. In this part, because of the rear wheels, the closed section shown in FIG. 8 cannot be extended as it is, so the outer panel 27 and the inner panel 28 form a small closed section, and the end of the floor panel 26 is joined to this. ing.
Note that 30 is a cowl panel, and the upper part of the cowl panel 30 is joined to the side surface of the outer panel 27.

10 and 11 are cross-sectional views showing the rear pillar 31 forming the rear edge of the door opening 2 along the - line in FIG. 3. FIG. 10 shows the door 3 in an open state; FIG. 11 shows the door 3 in a closed state. The rear pillar 31 has a closed cross-section structure with an outer panel 32 and an inner panel 33, and a vertical surface 32a formed at the front of the outer panel 32 and extending in the vehicle width direction has vertical surfaces facing the door opening 2. An extending guide rail 34 is joined. A roller 35 attached to the lower rear end of the door 3 is inserted into the guide rail 34.
This roller 35 is guided by a guide rail 34 and can roll up and down. Although not shown in the drawings, the guide rail 34 is formed to be slightly bent inward at the lower portion of the vehicle body. Therefore, the roller 35 that moves up and down along the guide rail 34
When located at the bottom of the guide rail 34, that is, when the door 3 is closed, the guide rail 3
The sealing member 36 is drawn into the vehicle body along the inward bend of the door 3, and the inner surface of the door 3 is attached to the end of the outer panel 32, as shown in FIG.
comes into contact with. Conversely, when the door 3 is moved upward from the closed state to be opened, the rollers 35 are pushed outward along the curve of the guide rail 34.
As shown in FIG. 10, the door 3 is pushed out slightly toward the outside of the vehicle and moves upward while being separated from the sealing member 36.

Next, the structure of the door 3 will be explained with reference to FIGS. 12 to 17. FIG. 12 is a perspective view showing the disassembled state of the door 3, in which the outer panel 3
7 and an inner panel 38 are joined together. A pair of fifth hinge brackets, which are pivotally connected to the second hinge brackets 9, 9 of the roof member 4, are fixedly attached to the inner surface of the upper edge of the door. The state in which the roof member 4 is pivotally connected to the roof member 4 is shown in the thirteenth section.
As shown in the figure. Outer panel 37 and inner panel 38
A closed cross section is formed at the upper edge of the fifth hinge bracket 40, and a fifth hinge bracket 40 is fixed to this closed cross section by a bolt 39. A second hinge bracket 9 and a fifth hinge bracket 40, which are fixed to the end of the roof member 4, are rotatably connected to each other by a pin 41.

FIG. 14 is a sectional view taken along the - line in FIG. 12, showing the door 3 in a closed state. The upper edge of the door 3, which is constructed by joining an outer panel 37 and an inner panel 38, is located so as to cover the end of the roof panel 5, and the inner surface (inner panel 38) of the door 3 is located on the roof panel 5. It is in contact with a sealing member 14 attached to the side end of.

15 and 16 are sectional views taken along the - line and - line in FIG. 12, respectively, and the door 3 is connected to the outer panel 37 and the inner panel 3
8 and shows that a roller 24 is attached to the lower end of the door 3. Note that a roller 35 is also attached to the opposite end of the door 3 (see FIG. 10).

FIG. 17 is a sectional view of the door lock portion taken along the line - in FIG. 12, showing a state in which the door lock 42 is engaged with the striker 43 on the vehicle body side.
The door lock 42 includes a lock release handle 44 provided at the center of the lower part of the door 3 and protruding outward from the lower part of the outer panel 37, and a lock release handle 44 connected to the handle 44 via a link 45 and attached to the inner surface of the inner panel 38. It consists of a hook mechanism 46. The hook mechanism 46 is capable of engaging and disengaging from a striker 43 provided on the vehicle body side. When closing the door 3, simply pushing the door 3 and pressing the hook mechanism 46 against the striker 43 engages the two, and vice versa. When opening the door 3, pull the lock release handle 44 to disengage the two, and then move the door 3 upward.

Next, to explain the operation of the above embodiment, the door 3
When the door 3 is closed covering the opening 2, the door 3 is in the most downwardly moved state, and the rollers 24, 35 at the bottom on both sides, especially the roller 35 at the bottom on the rear side, touch the rear edge of the door opening 2. The door 3 is pulled inwardly along the inward bend of the guide rail 34, as shown in FIG.
It is in contact with 6. In this state, the hook mechanism 46 of the door lock 42 is engaged with the striker 4 on the vehicle body side.
3 and the door is locked. Furthermore, the roof member 4 is positioned to cover the recess 5a of the roof panel 5.

When opening door 3 from this state,
First, the lock release handle 44 of the door lock 42
, to disengage the hook mechanism 46 and the striker 43, and then push the door 3 upward.
Then, the lower part of the door 3 is moved by the rollers 2 on both sides.
4 and 35 are the guide rails 2 on both sides of the door opening 2
3 and 34, it moves upward along the guide rails 23 and 34 while being pushed slightly outward. On the other hand, the upper edge of the door 3 is pivotally attached to one end of the roof member 4, so that the roof member 4 is connected to the roof panel 5 at the pivot point (the first
Hinge bracket 8 and third hinge bracket 10
The roof panel 5 is pulled toward the roof panel 5 side while moving upward as it rotates around the connecting point). Finally, as shown in FIGS. 1 and 2, the lower edge of the door 3 stops being lifted up to the upper edge of the opening 2, and the opening operation of the door 3 is completed. Note that when closing the door 3, the process is completely reversed, so the explanation thereof will be omitted.

When opening and closing the door 3, the weights of the door 3 and the roof member 4 are balanced by the torsion bars 6, 6 and the stay dampers 7, 7 as assist means, and the operating force required to open and close the door 3 is reduced. The relationship between these assisting forces and the actual operating forces will be explained using the graph in FIG. 18.

In this graph, the vertical axis shows the torque (Kg cm) when rotating the roof member 4 around the pivot point with the roof panel 5, and the horizontal axis shows the rotation of the roof member 4 with respect to the roof panel 5. Dynamic angle θ
shows. Therefore, when the rotation angle θ is zero, the door 3
is closed. In this graph, the straight line _T1 represents the assist torque generated by the pair of torsion bars 6, 6, and the curve _T2 represents the assist torque generated by the pair of stay dampers 7, respectively, and the sum of both ( _T1 + _T2 ) is the curve _T0 . It is represented. On the other hand, curve T ₃ shows the torque required to open the door 3 when there is no assist force at all. As you can see from this graph, the rotation angle θ
In a region where is close to zero (X region), that is, in a state where the door 3 is almost closed, the torque T ₃ required to open the door 3 is larger than the assist torque T ₀ . Therefore, if the door 3 is left free in a place where the door 3 is close to the closed state, the door 3 moves in the closing direction due to the weight of the door 3 and the roof member 4.
On the other hand, when the door 3 is opened to a certain extent, the assist torque T ₀ becomes larger than the required torque T ₃ (region Y). Therefore, if the door 3 is left free in this state, the door 3 will receive the assist torque and automatically move. Can be opened.

In this way, since the assist torque T ₀ by the torsion bars 6, 6 and the stay dampers 7, 7 is set, when opening the door 3, it is necessary to lift the door 3 to some extent manually, but the Once the door is opened, even if you release your hand, it will receive the assist torque and open the door on its own. Conversely, when closing door 3,
It is sufficient to pull down the door 3 against the force generated by the difference between the above-mentioned assist torque T ₀ and the required torque T ₃ , and as the door 3 moves downward and approaches the closed position, the required torque T 3 becomes larger. The door 3 can then be closed by its own weight, and this force can easily engage the hook mechanism 46 of the door lock 42 and the striker 43.

Furthermore, the torsion bars 6, 6 and the stay dampers 7, 7 are disposed between the roof panel 5 and the roof member 4, and apply upward torque to the roof member 4 to tighten the door 3 and the roof member 4. Since it is designed to be balanced with its own weight, even if the vertical stroke when opening and closing the door 3 is large, these operating strokes can be made small, making it possible to downsize the assist means and provide appropriate assistance. It is also easy to set up. In addition, due to the arrangement of both, the door opening 2
The area, that is, the open area of the door 3 is not narrowed, and the structure at the periphery of the door opening 2 is simplified.

(Effects of the invention) As described above, according to the vehicle opening/closing body structure of the invention, the lower part of the door is guided via the rollers by the guide rails extending vertically on both sides of the door opening. The upper edge of the door is pivotally connected to the other end of a roof member whose one end is pivotally connected to a roof panel, and the dead weight of the door and roof member is supported by a torsion bar and a torsion bar as assisting means. Since it is balanced by the stay damper, the door can be opened and closed by smoothly moving up and down without protruding outward as the roof member rotates, and the open area of the door can be increased. . Furthermore, the torsion bar and stay damper are disposed between the roof panel and the roof member, and can easily assist the rotation of the roof member throughout the entire stroke of opening and closing the door. It is possible to simplify assembly settings, etc., and the open area is not narrowed by these arrangements.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a perspective view of an automobile, Fig. 2 is an enlarged sectional view taken along the - line in Fig. 1, and Fig. 3 is a diagram showing a car with the door and roof member removed. 4th perspective view showing the state
The figures are perspective views of the roof member viewed from the bottom side, and are shown in Figures 5, 6, 7, 8, and 9.
The figures are - line, - line, - of Fig. 3, respectively.
FIG. 10 and 11 are enlarged sectional views taken along the - line in FIG. 3, with FIG. 10 showing the door in an open state and FIG. 11 showing the door in a closed state. FIG. 12 is an exploded perspective view of the door, and FIGS. 13, 14, 15, 16, and 17 are the - lines in FIG.
FIG. 3 is an enlarged cross-sectional view taken along lines - line, - line, - line, and - line. FIG. 18 is a graph showing the relationship between the roof member rotation angle and the roof member rotation torque. 2... Door opening, 3... Door, 4... Roof member, 5... Roof panel, 6... Torsion bar, 7... Stay damper, 23, 34... Guide rail, 24, 35... Roller.

Claims (1)

[Scope of utility model registration request] It has guide rails that extend vertically on both sides of an opening provided in the side wall of the vehicle, and rollers that are rollably inserted into the guide rails at the bottom of both sides, and can slide up and down into the opening. a roof member having one end pivotally attached to the upper edge of the door and the other end pivotingly attached to the roof panel;
An opening/closing body structure for a vehicle, comprising a torsion bar and a stay damper, which are disposed between the roof member and the roof panel and balance the weight of the door and the roof member.