JPH0613280B2 - Seesaw mechanism with locking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention was developed as an interlocking mechanism for a device for moving a step member in and out in conjunction with the opening and closing movement of a slide door of an automobile.

(Prior Art) Conventionally, in a device that moves a step member in and out in conjunction with opening and closing motions of a slide door of an automobile, it is possible to reliably interlock the opening and closing motion of the slide door and the withdrawal and retraction of the step member. A mechanism is desired.

In view of such a current situation, the present inventor has conducted research on an interlocking mechanism using a swingable seesaw body that is tilted in the opening / closing direction of the slide door by the opening / closing movement of the slide door. This is because when the seesaw body moves in the door opening direction of the slide door, the step member advances to the step position as the seesaw body tilts to the tilted position tilted in the door opening direction, and the seesaw body slides in the slide door. When the seesaw body tilts to the tilting position tilted in the door closing direction when moving in the door closing direction, the step member can be retracted from the step position to the storage position.

(Problems to be Solved by the Invention) However, there is a problem in that the seesaw body cannot be held in a stable state at each of the tilted positions only by arranging the seesaw body so as to be swingable between the tilted positions. is there.

In view of the above problems, the present invention is capable of reliably tilting a seesaw body to a predetermined tilting position in conjunction with movement of a moving body, and locking the seesaw body at a tilting position tilted in the moving direction of the moving body. It is an object of the present invention to provide a seesaw mechanism with a lock device that can be operated.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention provides a reciprocating path having a disconnection part at an intermediate point, a movable body reciprocating along the reciprocating path, and the disconnection. A seesaw body having an inverted V-shape that is swingably arranged on the section, and a rotating body that is arranged at a position near at least one end of the seesaw body, and the moving body always reciprocates including the disconnection portion. The seesaw body is provided with a pushing portion and an engaging portion that move along a path along the path, and the seesaw body has a first tilt position in which one end is connected to a portion located on one side of the disconnection portion of the reciprocating path, and the other The end portion is configured to be swingable between a second tilting position connected to a portion located on the other side of the disconnection portion of the reciprocating movement path, and the first or the first depending on the position of the pusher on the seesaw body. The second tilting position is adopted, and the rotating body includes the lock portion, the lock release piece, and the lock transfer piece. The lock portion is integrally provided and abuts on the seesaw body to lock the seesaw body at the first or second tilting position, and the unlocking piece is the engagement portion when the moving body enters the end of the seesaw body. When the movable body contacts the end portion of the seesaw body, the lock transfer piece is rotated to the unlocked position by rotating the lock portion so as to separate from the seesaw body. When retreating from the door, the engaging member is brought into contact with the rotary member, and the lock member is rotated so as to be brought into contact with the seesaw member so that the rotary member is rotated to the lock position. .

(Operation) According to the above configuration, when the moving body moves along the seesaw body, the pushing portion of the moving body comes into contact with the reverse V-shaped seesaw body and tilts it in the moving direction of the moving body. Can be made. The seesaw body can be swung by the reciprocating movement of the moving body.

When the moving body enters the end portion of the seesaw body, the engaging portion of the moving body abuts on the unlocking piece of the rotating body at the lock position where the lock portion engages the seesaw body, and moves in the same direction. Thus, the rotating body can be rotated from the lock position to the lock release position. As a result, the lock of the seesaw body at the tilted position is released, so that the movement of the moving body in the same direction causes the seesaw body to be pushed by the pushing portion of the moving body and rotate in the opposite direction to move the moving body. Tilt in the direction.

On the other hand, when the moving body exits from the end of the seesaw body,
As described above, the engaging portion of the moving body abuts the lock transition piece of the rotating body in the unlocked position, and the rotating body is rotated from the unlocked position to the locked position. At this time, the seesaw body is tilted in the moving direction of the moving body by the pushing portion of the moving body. Therefore, the seesaw body is locked in the tilted position.

As a result, the seesaw body can be surely tilted in association with the movement of the moving body, and the seesaw body can be rocked in conjunction with the movement of the moving body into the end portion of the seesaw body. The seesaw body can be locked at a tilting position tilted in the moving direction of the moving body in association with the withdrawal movement of the seesaw body of the moving body from the end portion.

(Embodiment) An embodiment in which the present invention is applied to an apparatus for moving a step member in and out in association with opening / closing movement of a slide door of an automobile,
Description will be made with reference to FIGS.

In FIG. 7 showing the overall arrangement, 1 is a car body, 2
Is an entrance and exit formed on the side surface of the vehicle body 1. Boarding gate 2
Is configured to be opened and closed by a slide door (moving body) 3. The sliding door 3 is guided and supported in an openable / closable manner by an upper rail 4 provided above the entrance / exit 2, a lower rail 5 provided below the entrance / exit 2, and a center rail 6 provided on a rear side surface of the vehicle body 1.

When the sliding door 3 is opened, the sliding door 3 first moves rearward (rightward in the figure) from the closed position of the virtual line in FIG. 3 and moves outward (downward in the figure), and then rearward. 3 to reach the open position of the solid line. When the sliding door 3 is closed, the sliding door 3 moves forward (to the left in the drawing), then moves slightly inward (upward in the drawing) from the closing position to the front and moves to the closing position.

As shown in FIG. 1, the lower rail 5 is provided below the floor panel 7 of the entrance / exit 2. This lower rail 5
Form a reciprocating path at the bottom of the slide door 3. The lower rail 5 includes a roller support surface 5a that supports the support roller (pushing portion) 3a of the lower bracket 8 fixed to the slide door 3. Further, the upper edge portion of the lower rail 5 and the side edge portion of the floor panel 7 are formed by the lower bracket 8
A guide rail portion 10 for guiding the guide roller 9 is formed.

A substantially central portion of the roller support surface 5a of the lower rail 5 is a cut portion 40, and an inverted V-shaped seesaw body 11 is disposed in the cut portion 40 so that its concave surface side can be swung upward. ing. As shown in detail in FIG. 2, the seesaw body 11 is swingably supported by a support bracket 12 attached to the vehicle body 1 via a support shaft 13. The seesaw body 11 has a rear roller support surface 11r in a horizontal posture and a front roller support surface 11f in a diagonally raised posture, and a tilted position when the sliding door is opened (Fig. 5).
And the roller support surfaces 11r and 11f swing in the opposite posture to the tilting position (FIG. 6) when the slide door is closed. In each of these tilting positions, the roller supporting surfaces 11r and 11f on the side in the horizontal posture are flush with the roller supporting surface 5a of the lower rail 5.

A rotation lever 14 is connected to the seesaw body 11 via the support shaft 13 so that both are integrally rotated. The tip portion 14a of the rotating lever 14 has a swinging link 15 formed by bending in a hook shape.
Is engaged with the engaging hole 15a formed at the bent end of the with play. The swing link 15 is swingably supported by a pivot 30 fixed to the vehicle body 1 side at its bent portion, and is pin-connected to the frame pipe 16a of the step member 16 at its lower end portion. Axis 3 of the swing link 15
0 and the support shaft 13 that pivotally supports the rotating lever 14 are arranged in directions orthogonal to each other. When the pivot lever 14 pivots in the MN direction as the seesaw body 11 pivots, the pivot link 15 pivots in the PQ direction to move the step member 16 back and forth between the step position and the retracted position.

The step member 16 has a structure in which a step board 16a is provided on a frame pipe 16a formed as shown in FIG. Suspending brackets 17, 17 are fixed to upper portions of both ends of the step member 16 on the lower surface of the lower rail 5, respectively. A pair of inner and outer links 18a and 18b are rotatably supported by each of the suspension brackets 17 and 17 so that the pendulum can move, and a step member 16 is pin-supported and supported at the lower ends of these links.

Locking devices R and F are attached to the side wall portions of the lower rail 5 facing the respective end portions 11c and 11c of the seesaw body 11. Both the lock devices R and F are formed in a bilaterally symmetrical shape and have a rotating body 19 which is rotatably supported by a substrate 20 between a lock position and an unlock position. As shown in FIG. 2, the rotating body 19 is rotated to the lock position and engages with the end 11c of the roller supporting surface 11r or 11f on the horizontal posture side of the seesaw body 11 to rotate upward. It is provided with a first operating piece (locking portion, unlocking piece) 19a for restricting, and a second operating piece (lock transition piece) 19b provided at a position shifted by 90 ° with respect to the first operating piece 19a. The rotating body 19 is biased by a turnover spring 21 interposed between the rotating body 19 and the substrate 20 into two positions, a lock position and an unlock position. Further, the rotation of the rotating body 19 is restricted by the pair of stopper pieces 20a, 20b provided on the upper edge of the substrate 20 contacting the first operating piece 19a or the second operating piece 19b.

A tip portion (engagement portion) 3c of a roller support shaft 3b that rotatably supports the support roller 3a of the slide door 3 projects inward of the vehicle body 1. This tip portion 3c serves as the first operating piece 19a or the second operating piece 1 of the rotating body 19 when the slide door 3 is opened and closed.
It comes into contact with 9b to rotate the rotating body 19. That is, when the rotating body 19 is in the lock position, the tip portion 3c contacts the first operating piece 19a to rotate the rotating body 19 to the unlocked position. When the rotating body 19 is in the unlocked position, the second
It abuts the operating piece 19b to rotate the rotating body 19 to the lock position.

Notches 11d, 11d for avoiding interference with the second operating piece 19b are formed at both ends 11c, 11c of the seesaw body 11.
When the locking device R on the rear side (right side in the drawing) is in the lock position, the first operating piece 19a of the rotating body 19 engages on the rear roller supporting surface 11r of the seesaw body 11. This is the seesaw body 1
1 is locked at a position where the rear roller support surface 11r is in a horizontal posture. At this time, the locking device F on the front side (left side in the figure)
Is in the unlocked position, and the first operating piece 19 of the rotating body 19 is
a is retracted upwards. Conversely, when the front locking device F is in the locked position, the rear locking device R is in the unlocked position.

The operation of the sliding door interlocking step device for an automobile configured as described above will be described.

When the slide door 3 is in the open position, the seesaw body 11 is tilted backward (to the right in the figure) as shown in FIG.
It is locked by a lock device R on the rear side (right side in the figure). On the other hand, the lock device F on the front side (left side in the drawing) is in the unlocked position.

When the slide door 3 moves in the closing direction, the tip end portion 3c of the roller support shaft 3b moves the support roller 3a onto the rear side roller support surface 11r of the seesaw body 11 and then the lock device R
The rotating body 19 is rotated clockwise from the locked position to the unlocked position while contacting the first operating piece 19a. As a result, the lock of the lock device R on the rear side is released.

The supporting roller 3a is the rear roller supporting surface 11 of the seesaw body 11.
The seesaw body 11 is rotated from the position tilted rearward (Fig. 5) to the position tilted forward (Fig. 6) as it moves from r to the front roller support surface 11f. The side roller support surface 11f takes a horizontal posture.

Along with the rotation of the seesaw body 11, as shown in FIG. 2, the rotation lever 14 rotates in the N direction, and the swing link 15 rotates in the Q direction around the pivot shaft 30. Thereby, the step member can be retracted from the step position to the storage position.

When the slide door 3 further moves in the closing direction, the tip 3c moves the second operating piece 19 of the lock device F on the front side (left side in the drawing).
The rotating body 19 is rotated clockwise from the unlocked position to the locked position while contacting b. This makes the seesaw body 11
Is locked at the position tilted forward (Fig. 6),
The supporting roller 3a is the front roller supporting surface 11 of the seesaw body 11.
The step member 16 can be held in the retracted position even after shifting from f to the roller support surface 5a of the lower rail 5 and the closing of the slide door 3 is completed.

On the other hand, when the slide door 3 moves in the door opening direction, the support roller 3a moves onto the front roller support surface 11f of the seesaw body 11, and the tip 3c unlocks the front locking device F. After that, the front side roller support surface 11f of the seesaw body 11 moves to the rear side roller support surface 11r.

The seesaw body 11 is tilted backward (from the position shown in FIG. 6) along with the shift of the support roller 3a (from the position shown in FIG. 6).
(Fig.), The rotating lever 14 rotates in the M direction, and the swing link 15 rotates in the P direction around the pivot 30. As a result, the step member 16 can be advanced from the storage position to the step position.

When the slide door 3 further moves in the door opening direction, the rotating body 19 is rotated counterclockwise from the unlocked position to the locked position while the tip portion 3c contacts the second operating piece 19b of the rear lock device R. To move. As a result, the seesaw body 11 is locked at the position tilted rearward (FIG. 5), so that the support roller 3a
Can move from the rear roller support surface 11r of the seesaw body 11 to the roller support surface 5a of the lower rail 5, and the step member 16 can be held in the step position even after the opening of the slide door 3 is completed.

The present invention can be configured in various modes other than those shown in the above embodiments. For example, in the above embodiment, the seesaw body is arranged with its concave surface side facing upward so that the weight of the slide door (moving body) can be used for tilting the seesaw body. The shape of the seesaw body and the lock device is not limited to those shown in the above embodiment. Further, in the above embodiment, the locking devices are arranged at both ends of the seesaw body, but when the seesaw body is sufficiently biased toward one tilt position and it is not necessary to lock the seesaw body in the tilt position. The locking device may be provided only on the other end of the seesaw body. In the above embodiment, the lock portion and the lock release piece are shared by the first operating piece 19a, but they can be provided separately. Further, in the above embodiment, the pushing portion (support roller 3a) and the engaging portion (tip portion 3c) are provided separately, but one of these may be used as the other. The seesaw mechanism with a lock device of the present invention,
Of course, it can be used for various interlocking mechanisms in addition to the interlocking mechanism in the device for moving the step member in and out in association with the opening / closing movement of the slide door of the automobile.

(Effects of the Invention) Since the present invention has the above-described configuration and operation, the seesaw body can be surely tilted in association with the movement of the moving body, and the movement movement of the moving body to the end portion of the seesaw body can be achieved. The seesaw body can be rocked in conjunction with the movement of the seesaw body, and the seesaw body can be locked at a tilting position tilted in the moving direction of the moving body in conjunction with the withdrawal movement of the seesaw body from the end of the moving body. .

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention, FIG. 2 is a perspective view of essential parts thereof, FIG. 3 is a plan view thereof, and FIG. 4 is II-II of FIG.
A line sectional view, FIG. 5 is a front view showing the action of the slide door when the door is opened, FIG. 6 is a front view showing the action of the slide door when the door is closed, and FIG. 7 is a perspective view showing the entire arrangement thereof. Is. 3 ... Moving body 3a ... Pushing section 3c ... Engaging section 11 ... Seesaw body 11c ... End section 19 ... Rotating body 19a ... Locking section, unlocking piece 19b.

Claims (1)

[Claims] 1. A reciprocating path having a disconnection section at an intermediate point, a moving body reciprocating along the reciprocating path, and an inverted V-shaped seesaw body swingably arranged at the disconnecting section. And a rotating body arranged at a position near at least one end of the seesaw body, and the moving body always moves along a path along the reciprocating movement path including the disconnecting section, and the engaging section and the engaging section. The seesaw body has a first tilted position in which one end is connected to a portion located on one side of the disconnection portion of the reciprocating movement path, and the other end portion is located on the other side of the disconnection portion of the reciprocating movement path. Second to connect with
And a tilting position of the pusher body on the seesaw body, and the rotating body has a lock part and an unlocking piece. The lock transfer piece is integrally provided, and the lock portion abuts on the seesaw body to lock the seesaw body at the first or second tilt position. The lock release piece allows the moving body to enter the end portion of the seesaw body. At this time, the rotary body is brought into contact with the engagement portion and rotated, and accordingly, the lock portion is rotated so as to be separated from the seesaw body to rotate the rotary body to the unlocked position. When retreating from the end portion of the seesaw body, it abuts on the engaging portion and turns, so that the lock portion is turned so as to abut the seesaw body, and the turning body is turned to the lock position. A seesaw mechanism with a locking device.