JPS5845423Y2 - Automotive sliding door locking device - Google Patents

Description

[Detailed description of the invention] This invention relates to a locking device for an automobile sliding door in which the door is opened and closed by sliding it back and forth along the outer surface of the car body. The sliding door is restricted until the door is swung out in the opposite direction, and when the door is in the open state, the door is held in the swung state to prevent it from colliding with the outside surface of the vehicle body.

Next, an embodiment of this invention will be explained with reference to the drawings.

In FIGS. 1 and 2, the rear of the door opening 2 of the vehicle body 1 (
A support member 3 is fixed inside (right side of FIGS. 1 and 2), and the base end of the support arm 4 is attached to a vertical shaft 5.
The support arm 4 is rotatably supported by a vertical shaft 5, and can pivot horizontally outward of the vehicle body 1 about a vertical shaft 5 as a center of rotation.

Immediately above the support arm 4 is an auxiliary arm 6, and the base end of the auxiliary arm 6 is also pivotally supported on the support member 3 by a short vertical shaft 7, and extends outward from the vehicle body 1 with the vertical shaft 7 as the center of rotation. This auxiliary arm 6 and the above-mentioned support arm 4 constitute a set of arms.

On the other hand, a guide rail 9 is provided on the inner surface of the door 8, and both ends of the guide rail 9 are fixed to the door 8 by guide rail attachment members 10.11, and are installed horizontally in the front-rear direction of the door 8.

The guide rail 9 has a hollow rectangular cross section as shown in FIGS. 5 to 9, and passes through a sliding member 12 that has a larger hollow rectangular cross section.

Inside the sliding member 12, there are rollers 13, 13, . . . in contact with the upper and lower surfaces of the guide rail 9, and rollers 14, 14, .
... are attached to support the guide rail 9 so as to be movable in the longitudinal direction relative to the sliding member 12.

A bracket 15 having a U-shaped cross section is fixed to the lower side of the sliding member 12, and a tip shaft support 16 formed at the tip of the aforementioned support arm 4 is supported by a vertical shaft 17 on this bracket 15. has been done.

Further, on the lower surface of the sliding member 12, as is clear from FIG. 5, the tip of the auxiliary arm 6 is pivotally supported by a short vertical shaft 18.

As a result, the door 8 includes a guide rail 9, a sliding member 12,
It is supported by the vehicle body 1 via the support arm 4, the auxiliary arm 6, and the support member 3, and is maintained substantially parallel to the outer surface of the vehicle body 1.

FIG. 2 shows the door 8 in a closed state. In this state, when the door 8 is unlocked and a force is applied to move it outward from the vehicle body 1, the support arm 4 and the auxiliary arm 6 are moved. The door 8 swings horizontally toward the outside of the vehicle body 1 about the vertical shafts 5 and 7 at the base end as the center of rotation, and the door 8 is swung outward from the vehicle body 1 as shown in FIG.

In this state, when the door 8 is moved to the right in FIG. 3, the guide rail 9 slides inside the sliding member 12, and the door 8 moves rearward along the outside of the vehicle body 1, as shown in FIG. It becomes open.

When closing the door 8, the opposite operation is performed.

On the inside of the sliding member 12, as shown in FIGS. 5 and 6, an intermediate portion of a locking lever 19 is swingably supported by a horizontal shaft 20. As shown in FIGS.

The locking lever 19 is formed into a substantially U-shape, and a roller 22 is rotatably attached to the upper end of the locking lever 19 by a vertical shaft 21.

The upper end of the locking lever 19 to which the roller 22 is attached faces the inside of the sliding member 12 through a hole 23 formed in the sliding member 12.

When the door 8 is closed and the sliding member 12 is in contact with the guide rail mounting member 11 at the rear end of the guide rail 9 as shown in FIG. 24 (see FIG. 6) faces the upper end of the locking lever 19.

The recess 24 is made wide enough to fit the upper end of the locking lever 19 together with the roller 22 , and has a width that allows the upper end of the locking lever 19 to fit therein together with the roller 22 .
The upper end of the lock lever 19 can be held in the recess 24 only when the lever is in contact with the guide rail attachment member 11.

A torsion coil spring 25 wound and supported near both ends of the horizontal shaft 20 presses the lower side of the locking lever 19 than the horizontal shaft 20 toward the sliding member 12, so that the locking lever 19 is moved toward the horizontal shaft 20. It is biased to swing clockwise in FIG. 6 about the center.

However, as shown in FIGS. 5, 6, and 10, the upper end of the tip shaft support 16 of the support arm 4 twists the lower end of the locking lever 19, resisting the biasing force of the coil spring 25 and pushing it toward the inside of the vehicle. As shown in FIG. 3, the locking lever 19 is
6 in the state shown in FIG. 6 in which the upper end is engaged in the recess 24,
The guide rail 9 is locked so that it does not move relative to the sliding member 12.

At the upper end of the tip shaft support 16, on the side facing the support arm 4,
As is clear from FIGS. 5, 7, and 10, a flat notch 26 is provided so that the support arm 4 protrudes outside the vehicle body 1 as shown in FIGS. 3 and 4. When the door 8 is completely swung out, the notch 26 faces the lower end of the locking lever 19 as shown in FIGS. 7 and 11, and the locking lever 19
The lower end of will not be pushed towards the inside of the vehicle.

Therefore, the locking lever 19 swings clockwise from the state shown in FIG. 6 by the force of the torsion coil spring 25, and as shown in FIGS.
The guide rail 9 is engaged with the slide member 12, and the upper end is kept separated from the recess 24 as shown in FIG.

Therefore, it becomes possible to open the door 8 toward the rear.

When the door 8 starts to be moved rearward from the position shown in FIG.
4 is removed from the position facing the upper end of the locking lever 19, and the roller 22 comes into contact with the side surface of the guide rail 9, and the locking lever 1
9 is maintained in the position shown in FIG.

After the door 8 begins to move rearward, the support arm 4
In the figure, even if an attempt is made to rotate clockwise around the vertical shaft 5, the roller 22 at the upper end of the locking lever 19 is in contact with the side surface of the guide rail 9, and the lower end of the locking lever 19 is in the notch 2.
6, the tip shaft support 16 is attached to the sliding member 1.
2, and the support arm 4 is held in the state shown in FIG. 4 and cannot be rotated.

Therefore, after the door 8 starts moving, it will not collide or come into contact with the vehicle body 1.

When closing the open door 8, move the door 8 forward and attach the guide rail mounting member 11 as shown in FIG.
When the locking lever 19 comes into contact with the sliding member 12, the upper end of the locking lever 19 faces the recess 24 of the guide rail 9, and the locking lever 19 is in a state where it can swing counterclockwise around the horizontal axis 20 in FIG. become.

When the support arm 4 is now rotated toward the interior of the vehicle, the lower end of the locking lever 19 that was engaged with the notch 26 of the tip shaft support 16 is detached from the notch 26 due to the rotation of the tip shaft support 16. As a result, the upper end of the locking lever 19 engages with the recess 24 of the guide rail 9 as shown in FIG. 6.

Then, the door 8 is maintained substantially parallel to the outer surface of the vehicle body 1 by the support arm 4 and the auxiliary arm 6, and the door opening 2
It is placed in a closed state and locked by a locking device (not shown).

As explained above, in this invention, when the support arm 4 pivots when opening and closing the door 8, the upper end of the locking lever 19 engages with the recess 24 of the guide rail 9 to restrict the sliding of the door 8. When the door 8 slides after completion of swinging, the other lower end of the locking lever 19 engages with the notch 26 of the tip shaft support 16 of the support arm 4 to restrict the rotation of the support arm 4. Collision with the outer surface of the vehicle body 1 can be reliably prevented.

Also, one end of the lock lever 19 and the recess 24 of the guide rail 9
The engagement and disengagement between the locking lever 19 and the notch 26 of the tip shaft support 16 are reliably operated in conjunction with the rotation of the support arm 4 and the sliding of the guide rail 9. The door 8 can be opened and closed in a controlled manner and smoothly.

[Brief explanation of the drawing]

Figure 1 is a partial side view of the left side of the cab of a cab-over type vehicle to which this invention is applied, and Figure 2 is a partial side view of the left side of the driver's cab of a cab-over type vehicle to which this invention is applied.
- A cross-sectional plan view along line II, Figures 3 and 4 are the same cross-sectional plane views as Figure 2 showing the fully opened state and fully opened state of the door, respectively. Figure 5 is a cross-sectional view taken from line ■-■ in Figure 2. 6 is a longitudinal cross-sectional view taken along line VI-VI in FIG. 5, and FIG. 7 is an enlarged view of the main parts as seen.
8 and 9 are longitudinal sectional views taken along the ■-■ line and ■-X line in FIG. 5, respectively.
The figure is a cross-sectional plan view taken along line XX in FIG. 6, and FIG. 11 is a cross-sectional plan view taken along line X-X in FIG. 7. 1...Vehicle body, 4...Support arm, 5,
7.17.18... Vertical axis, 6... Auxiliary arm, 8... Door, 9... Guide rail, 12... Sliding member, 16...
Tip shaft support, 19...Lock lever, 24...
... recess, 25 ... torsion coil spring, 26.
...Notch.

Claims (1)

[Scope of utility model registration request] The base ends of a set of arms are pivotally supported on the edge of a door opening of the vehicle body so that the set of arms can pivot horizontally and protrude outward from the vehicle body, and a sliding member is pivoted at the tip of the set of arms. At the same time, a horizontal guide rail having both ends fixed to the inner surface of the door is supported on the sliding member so as to be movable in the longitudinal direction, and a locking lever is swung near the shaft support of one of the arms of the sliding member. The locking lever is movably pivoted, and a guide rail surface corresponding to one end of the locking lever is formed with a recess with which the one end engages only when the door is in the closed position. One end of the lever is urged to separate from the recess, and the other end of the locking lever is brought into sliding contact with the tip shaft support of the one arm by the spring, and the end shaft support of the one arm is forced to come into contact with the end shaft support of the one arm. A locking device for a sliding door for an automobile, characterized in that a notch is provided with which the other end of the locking lever engages only when the arm protrudes outward from the vehicle body.