JPS6114901Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a sliding door for a vehicle, and particularly to a guide device for a sliding door whose side surface shape is complicated.

Conventionally, the sliding door that constitutes the rear door of a van-type vehicle has a nearly rectangular side shape and has a fixed panel surface at the rear of the door. Rollers are provided at three locations, approximately at the center and at the bottom, and rails are provided horizontally at the upper edge of the opening in the vehicle body, the rear panel surface, and the lower edge of the opening corresponding to the rollers. However, when configuring a side door of a passenger car, a front door of a cab-over type car, etc. as a sliding door, these doors generally have a complex polygonal side shape, and are equipped with separate doors before and after the door, or Since the door does not have a fixed panel surface of the required length in front and behind it, it is difficult to arrange the rail as described above. Therefore, as a guide device for this type of sliding door,
Conventionally, a main rail is provided horizontally at approximately the center of the door in the height direction using a pipe material with a closed cross section, a sliding member is provided to cover the outer periphery of the main rail, and the sliding member is connected to a predetermined position inside the vehicle body. A sliding door guide device has been proposed that is swingably connected by a pair of arms.

In such a device that slides and guides a door using a single main rail, the unavoidable gap between the main rail and the sliding member causes the upper and lower ends of the door to sway significantly in the direction toward the vehicle. In order to reduce this, it is necessary to increase the cross section of the rail or increase the length of the sliding member, but this increases the weight of the door and may make it difficult to open and close the door.

The present invention has been devised in view of the above points.

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 and 2, the door 2 of the vehicle body 1
A support member 4 is located inside the rear edge of the opening 3 which is closed by the
is fixed to the support member 4 via a bracket 5, and the base ends of a pair of support arms 6 and 7 are supported by vertical shafts 8 and 9, respectively, on the support member 4. It is designed to be able to turn horizontally toward the outside of the vehicle body 1 with the rotation center at 9. The tips of the support arms 6 and 7 are pivotally supported by a sliding member 10, as will be described later. Main rail 11
is attached to the inner surface of the door 2 that closes the opening 3 substantially horizontally in the front-rear direction via spacer members 12 and 13. Further, below the main rail 11, a sub-rail 14 having a gutter-like cross section is installed on the main rail 11.
It is fixed to door 2 so as to be parallel to door 1.

As shown in FIG. 7, the main rail 11 has a partially open rectangular cross section.
1 passes through the main body 15 of the sliding member 10. As shown in FIGS. 6 and 7, the sliding member 10 consists of a main body 15 and a holding portion 16 integrally attached to the lower part of the main body 15. Inside the main body 15, there are rollers 17, 17, . . . in contact with the upper and lower surfaces of the main rail 11, and rollers 18, 18, .
... are attached to support the main rail 11 so as to be movable in the longitudinal direction relative to the sliding member 10.

As shown in FIGS. 5 to 7, the ends of the aforementioned support arms 6 and 7 are attached to the holding portion 16 formed to extend below the main body 15 of the sliding member 10, and are connected to vertical shafts 19 and 20, respectively. It is pivoted. A mounting plate 21 is fixed to the lower end surface of the holding portion 16 so as to protrude toward the door, and sub rollers 22, 22 that roll within the subrail 14 are pivotally attached to the protruding end of the mounting plate 21.

With the above-described structure, the door 2 is supported by the vehicle body 1 via the main rail 11, the sliding member 10, the support arms 6, 7, and the support member 4, and the door 2 is further supported by the sliding member 10, the sub-rail 14, and the sub-roller 22.
The door 2 is supported by the vehicle body 1 through the door 2.
is maintained substantially parallel to the outer surface of the vehicle body 1 in a stable state.

5 and 6, 23 is a stopper fixed to the upper surface of the main rail 11, 24 is a lock lever provided on the sliding member 10, and 61 is a lock member formed on the support arm 6, which allows the door 2 to move back and forth. At this time, the tip of the lock lever 24 and the tip of the lock member 61 are engaged to maintain the protruding state of the door 2.

FIG. 2 shows the state in which the door 2 is closed. When a force is applied to move the door 2 outward from the vehicle body 1 in this state, the support arms 6 and 7 rotate around the vertical shafts 8 and 9 at their base ends, respectively, toward the vehicle body 1.
When the door 2 is opened, the main rail 11 rotates horizontally toward the outside of the vehicle body 1, and the door 2 is swung outward from the vehicle body 1 as shown in Fig. 3. When the door 2 is moved to the left in this state in Fig. 3, the main rail 11 slides in the sliding member 10 and the door 2 moves rearward along the outside of the vehicle body 1, and assumes the open state as shown in Fig. 4. When the door 2 is closed, the open door 2 is moved to the right in Fig. 4, and the main rail 11 and the door 2 move until the stopper 23 fixed to the upper surface of the main rail 11 abuts against the sliding member 10, resulting in the state shown in Fig. 3 and allowing the door 2 to be closed. A cushioning material 25 such as rubber is attached to the surface of the stopper 23 that abuts against the sliding member 10, as shown in Figs. 5 and 6.

As explained above, the sliding door guide device of the present invention supports the door through the sub-rail at the lower end in addition to the main rail at the center of the door, so the door maintains a stable protruding state. The upper and lower ends do not sway horizontally during movement. Furthermore, since the cross-sectional shape of the main rail can be made significantly smaller than in a configuration with only the main rail, the weight of the entire door is reduced and the operating force is reduced.

[Brief explanation of the drawing]

Figure 1 is a side view of the main part on the right side of the driver's cab of a cab-over type car to which this invention is applied, and Figure 2 is
Figures 3 and 4 are cross-sectional plane views taken along the - line in the figure, respectively.
FIG. 6 is a side view taken from the direction of the arrow in FIG. 5, and FIG. 7 is a vertical sectional view taken along the line - in FIG. 5. be. 1... Vehicle body, 2... Door, 6, 7... Support arm, 8, 9, 19, 20... Vertical shaft, 10... Sliding member, 11... Main rail, 14... Sub rail, 17, 18 ... Laura, 22... Sub-roller.

Claims (1)

[Scope of utility model registration request] A horizontal main rail with both ends fixed to the inner surface of the door is provided approximately at the center in the height direction of the door, a sliding member that supports the main rail so as to be movable in the longitudinal direction, and one end of which is pivotally supported on the sliding member. A pair of support arms are provided, the other end of which is pivotally supported inside the vehicle body, and the door is horizontally pivoted outward from the vehicle body, and a sub-rail that guides a roller rotatably attached to the lower end of the sliding member is provided on the main rail. A guide device for a vehicle sliding door that is installed on the inner surface of the lower door almost parallel to the main rail.