JPH0312946Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Technical Field" The present invention relates to a sliding door used as a door on the rear seat side of a one-box car.

"Prior art and its problems" For example, in a one-box car, the rear seat side door shown by S in FIG. 5 is a sliding door. FIG. 6 is a view of the sliding opening/closing mechanism (lower side) of this sliding door S, seen from the rear. A roller 13 is pivotally mounted to the roller bracket 11 so as to be vertically rotatable, and a rotating roller 15 for left/right regulation is pivotally mounted to the roller bracket 11 so as to be horizontally rotatable by a vertically attached stepped pin 14. . The lower surface of the running rotating roller 13 comes into contact with the running surface 16a on the inner upper surface of the guide rail 16 provided on the body side, and the left and right regulating rotating roller 15
is the upper inner guide surface 16 of the guide rail 16
It is in contact with b. The roller bracket 11 is fixed to the arm 18 of the sliding door body 17 and is integrated with the door body 17.

In this conventional sliding door, the door main body 17 is guided in the front-rear direction by the running rotating roller 13, and the left-right direction (width direction of the vehicle) is guided by the left-right regulating rotating roller 15. However, as is clear from its structure, this conventional device is not provided with a stopper mechanism. Therefore, if the vehicle is stopped on a slope and the sliding door body 17 is left in a half-open state and you take your hand off the door, the door body 1
7 opened and closed under its own weight, and there was a danger that the door body 17 would open and close the door, causing the hand to be caught or caught in the door body 17.

The present applicant has already proposed Utility Application No. 155578/1983 (Patent Application No. 69378/1983) in order to solve these problems of the conventional sliding door, but this sliding door does not have a brake. The entire door had to be lifted slightly to reverse direction.

``Purpose of the invention'' This invention prevents a half-open sliding door from opening and closing under its own weight even when the vehicle is stopped on a slope, etc., and also eliminates the need to lift the door when reversing the direction of brake application. The purpose is to obtain a sliding door with excellent operability.

"Summary of the invention" The present invention provides a stopper rail having a corrugated locking part along the guide rail, and allows the shaft of a rotating roller rolling within the guide rail to move forward and backward toward the stopper rail. and a spring means for supporting a stopper arm member that is rotatable relative to the rotating roller and urging the stopper arm member to move toward the stopper rail, and a stopper pin that engages with the wave-shaped locking portion of the stopper rail on the stopper arm member. It is characterized in that the rotation of the stopper arm member is controlled by a rotation control surface formed in the trough of the wave-shaped locking portion of the stopper rail, so that a braking action is performed. The stopper arm member may be supported on the shaft of either a rotating roller for traveling or for regulating left and right.

``Embodiments of the invention'' The invention will be described below with reference to illustrated embodiments. 1 to 4 show an embodiment of the present invention, and the same components as those of the conventional device shown in FIG. 6 are given the same reference numerals. In this embodiment, a stopper arm member 20 is attached to the shaft portion of the left and right regulating rotation roller 15.
This is an example that supports the following. Left and right regulation rotating roller 1
The shaft pin 21 inserted into the shaft hole of the roller 1
A bushing 22 is supported coaxially with the bushing 5. Butsuyu 2
2 is formed with a guide shaft portion 24 to be inserted into the elongated hole 23 of the stopper arm member 20 and a spring hook portion 25. On the opposite side of the stopper arm member 20 from this bushing 22, there is another spring-loading bushing 2.
6 is located, and the shaft pin 21 is inserted into the left and right regulating rotating roller 15, the bush 22, the support hole 27 of the roller bracket 11, and this bush 26, and is fixed to the bush 26 by caulking its head. .

The long hole 23 of the stopper arm member 20 is a long hole whose width is equal to the diameter of the guide shaft portion 24, and can be moved in the left-right direction relative to the long hole 23 (shaft pin 21) by its effective length l. A spring hanging portion 28 is bent at one end of the stopper arm member 20;
A tension spring 29 is tensioned between the bush 22 and the spring hook 25, and urges the stopper arm member 20 to move in a direction approaching the stopper rail 40. Further, a stopper pin 3 is provided at the end of the stopper arm member 20 opposite to the spring hanging portion 28.
0 is fixed.

A neutral spring 31 is wound around the bush 26,
Hook portions 32, 32 at both ends of this neutral spring 31
is in contact with the neutral arm 33 of the roller bracket 11 and both sides of the stopper arm member 20 at the same time,
The stopper arm member 20 is always connected to the stopper rail 4.
It is biased towards the neutral position which is orthogonal to 0.

The stopper rail 40 is fixed to the guide rail 16 and has a corrugated locking portion 41 with which the stopper pin 30 engages. This wave-shaped locking portion 41
is formed by alternately providing peaks 42 and valleys 43. The peak portion 42 is composed of a smooth curved surface or a curved surface and a straight line, regardless of its shape, but the valley portion 43 is provided with a rotation control surface 45 located closer to the left and right regulating roller 15 than the arc 44. It is being The arc 44 is the locus of the tip of the stopper pin 30 when the stopper arm member 20, which is being moved toward the stopper rail 40 by the tension spring 29, makes a circular motion around the guide shaft portion 24. The distance (wrap amount) h between this circular arc 44 and the rotation control surface 45 is set smaller than the distance l that the stopper arm member 20 can move due to the relationship between the elongated hole 23 and the guide shaft portion 24. .

This sliding door with the above configuration is in the set state.
The running rotating roller 13 contacts the running surface 16a of the guide rail 16, the left and right regulating rotating roller 15 contacts the inner guide surface 16b, and the stopper pin 30 of the stopper arm member 20 contacts the stopper rail 40.
It comes into contact with the wave-shaped locking part 41 of. The stopper arm member 20 is biased by a neutral spring 31 so as to face in a direction perpendicular to the stopper rail 40, but the stopper arm member 20 is biased toward the stopper rail 40 by a tension spring 29, and the waveform engagement Since the rotation control surface 45 of the stop portion 41 is shaped as described above, the stopper arm member 20 cannot be rotated to a position perpendicular to the stopper rail 40, and the stopper pin 30 cannot be rotated to a position perpendicular to the stopper rail 40. Its rotational position is restricted at the position where it comes into contact with either the portion 42 or the trough 43.

In the state shown in FIG. 2, when the left-right regulating rotation roller 15, that is, the sliding door main body 17 attempts to move in the direction of arrow A with the stopper pin 30 on the rear side, the stopper arm member 20 and the stopper pin 30 simply move the left-right regulating rotation roller 15. Since the stopper pin 30 is only dragged by the guide shaft 24 which is coaxial with the
3, while swinging around the guide shaft portion 24. In other words, the brakes are not applied in this direction.

On the other hand, when the sliding door main body 17 tries to move in the direction of arrow B, in which the stopper pin 30 is on the front side, the stopper pin 30 comes into contact with the rotation control surface 45 of the valley part 43, and a brake is applied to the movement of the sliding door main body 17. That is, the rotation control surface 45 is
Since the stopper pin 30 is located on the stopper pin 30 side according to the arc 44 which is the movement locus, in order to further move the slide door body 17 while the stopper pin 30 is in contact with the rotation control surface 45, the arc 44 and the rotation control are required. The tension spring 2
It must be moved against the force of 9. Conversely, the load that can stretch the tension spring 29 by more than the wrap amount h is the load on the sliding door body 1.
7 (tilt), the movement of the sliding door body 17 in the direction of arrow B can be braked. Further, since the stopper pin 30 contacts the connecting corner portion 46 between the trough portion 43 and the peak portion 42, it does not slip against the corrugated locking portion 41. Note that the shape of the side surface of the mountain portion 42 that connects to the connecting corner portion 46 is as follows.
In addition to a circular arc such as a circular arc continuous to the circular arc 44, the same effect can be obtained by using a straight line.

If you want to apply a brake to the movement of the sliding door body 17 in the direction of arrow A, apply a load to the sliding door body 17 in the direction of arrow B, and increase the amount of overlap h between the arc 44 and the rotation control surface 45. ,
The stopper arm member 20 may be moved against the force of the tension spring 29, and the stopper pin 30 may be moved to the side opposite to the left and right regulating rotation roller 15. As a result, movement in the A direction is braked based on the same principle as described above. In this state, the sliding door body 17 can be moved in the opposite direction in the B direction.

This braking force and the force applied to the sliding door body 17 when reversing the braking direction are as follows:
It can be easily set by adjusting the strength of the tension spring 29 and the above-mentioned wrap amount h.

In addition, the stopper rail 40 is attached to the stopper pin 3 when the sliding door body 17 is in the fully open and fully closed positions.
The length is set so that it does not come into contact with 0.
FIG. 4 shows the stopper pin 30 in the fully open (solid line) and fully closed (chain lines) states of the sliding door body 17.
This figure shows the relationship between the stopper pin 30 and the stopper rail 40, so that the stopper arm member 20 is oriented perpendicularly to the stopper rail 40 by the force of the neutral spring 31. Therefore, the sliding door body 1
In the fully open and fully closed states of 7, there is no need to reverse the direction of brake application. In this case, another locking mechanism or brake mechanism is activated at the fully open and fully closed positions to prevent the sliding door body 17 from moving inadvertently.

In the above embodiment, the stopper arm member 20 is supported on the vertical axis of the left-right regulating rotation roller 15 so as to be movable in the left-right direction. The same effect can be obtained by supporting the stopper rail 20 and providing a corresponding stopper rail 40.

Further, in the embodiment, the stopper rail 40 is constructed from a separate member from the guide rail 16, but the two may be constructed integrally.

"Effects of the Invention" As described above, in the sliding door of the present invention, this stopper pin engages with the stopper pin of the stopper arm member supported by the shaft of the rotating roller rolling within the guide rail. By engaging with the guide rail having the wave-shaped locking portion, it is possible to prevent the half-opened sliding door from opening and closing under its own weight. Furthermore, when reversing the direction of braking action, it is sufficient to simply apply a moving force to the sliding door, and there is no need to lift the door, so it is possible to obtain a sliding door that has a braking action with excellent operational feel. Further, since the braking force can be set by the force of the spring means that biases the stopper arm member toward the guide rail, it is easy to change and adjust the braking force.

[Brief explanation of the drawing]

Fig. 1 is a front view of the main parts of the sliding door seen from the front and rear directions, showing an embodiment of the sliding door of the present invention, Fig. 2 is a sectional view taken along the - line in Fig. 1, and Fig. 3 is the same main part. Figure 4 is a front view showing the states of the stopper rail and stopper pin in the fully closed and fully open states, Figure 5 is an external view of a one-box car with a sliding door, and Figure 6 is a conventional sliding door. FIG. 2 is a front view similar to FIG. 2 showing the structure of FIG. 11... Roller bracket, 14... Shaft pin, 15
...Left and right regulating rotation roller, 16...Guide rail, 1
7... Sliding door body, 20... Stopper arm member, 21... Shaft pin, 24... Guide shaft portion, 29... Tension spring, 30... Stopper pin, 31... Neutral spring,
40... Stopper rail, 41... Wave-shaped locking part, 42
...crest, 43...trough, 45...rotation control surface.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A sliding door that has a rotating roller that rolls within a guide rail provided on the body side and that slides open and close along the guide rail. a stopper rail having a corrugated locking portion provided therewith; a stopper arm member supported on the shaft portion of the rotating roller and capable of moving forward and backward toward the stopper rail and rotating relative to the rotating roller; Spring means for biasing the stopper arm member to move toward the stopper rail side; and a stopper pin fixed to the stopper arm member that engages with the waveform locking portion of the stopper rail, and a trough portion of the waveform locking portion is always provided with a stopper pin. A sliding door characterized in that a rotation control surface is formed that restricts rotation of the stopper arm member and allows rotation of the stopper arm member only when the stopper arm member is moved against the spring means. (2) In claim 1 of the utility model registration claim, the rotating roller is a left-right regulating rotating roller that restricts the sliding door from moving in the width direction of the vehicle, and the stopper arm member is a sliding door that is movable in the left-right direction. door. (3) In claim 1 or 2 of the utility model registration, the stopper rail is a sliding door that is integrated with the guide rail.