JPH072937Y2 - Suspension vehicle for sliding door with brake - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding door suspension vehicle that is suspended from a rail and opens and closes.

[0002]

2. Description of the Related Art A suspension vehicle (running tool) is attached to the upper end of a sliding door and is hung on an upper rail in the front of the frontage. The suspension vehicle rolls along the upper rail to open and close the sliding door, and a cushioning material having a high cushioning property is provided along the door end of the sliding door. The cushioning material reduces the impact force and impact sound generated when the sliding door is opened and closed, but if it is opened and closed vigorously, it can bounce against the vertical crosspiece of the frontage and completely open and close the sliding door. Disappear.
That is, even if the sliding door is closed, the sliding door is largely opened due to the rebound phenomenon, and the opened sliding door hits the vertical rail on the opposite side to narrow the frontage.

As a matter of course, as the sliding door device, there is known a sliding door device constructed so as to eliminate the shock when the sliding door is opened and closed and to prevent the sliding door from bouncing. This type of sliding door device is provided with a self-closing device and a damper, and also has a stopper device for holding the sliding door in an open state, but it is costly to attach these devices to all sliding doors. It's not realistic. The above-mentioned device cannot be provided in a sliding door that serves as an entrance / exit of a school classroom or the like, and a simple device using a structure without cost burden is desired.

FIG. 7 shows a conventional type suspension vehicle which is attached to the upper end of a sliding door to suspend the sliding door. The suspension vehicle has a roller (c) pivotally supported by a bearing on a horizontal shaft (b) provided on the suspension (a), and the roller (c) freely rotates without resistance and rolls on the upper rail. When a large axial load is applied to the roller (c), the retaining ring (d) prevents the roller (c) from coming off easily if the retaining ring comes off due to the axial load. To disengage from the bearing.

[0005]

As described above, the conventional sliding door device has the above-mentioned problems. The problems to be solved by the present invention are these problems, and it is possible to provide a suspension vehicle for a sliding door with a brake that can suppress the rebound phenomenon of the sliding door to a small extent even if it is opened / closed vigorously, and can give a heavy feeling to the opening / closing of the sliding door. .

[0006]

In the hoisting vehicle of the present invention, a roller is rotatably supported by a shaft provided in a hoisting tool. This point has the same structure as a conventional hoisting vehicle, but A braking device is provided next to it. The brake device has a slider, and a spring force is applied to the slider to press it against the rail surface. An adjusting tool is provided so that the biasing spring force can be increased / decreased, and the pressure contact force can be adjusted. By the way, the holder to which the slider is attached is attached to a suspender that supports a roller, and the slider extends from the holder via a spring force and contacts the rail surface.

[0007]

[Operation] By constructing the suspension vehicle of the present invention as described above,
The roller is placed on the running surface of the rail, and the slider of the brake device contacts the rail surface. Since the slider is biased by a spring force, it is in pressure contact with the rail surface at a predetermined pressure, so if the roller rolls, the slider slides on the rail surface and generates friction. , Gives resistance to the opening and closing operation of the sliding door. That is, the opening / closing operation becomes moderately heavy, and the vertical crosspiece is prevented from bouncing back. Moreover, this moderate weight also gives a feeling of solidness of the sliding door itself. Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings.

[0008]

EXAMPLE FIG. 2 shows a general sliding door device having two front doors.
The sliding doors 1a and 1b are attached and the frontage is closed. A window is formed above the sliding door, and sliding doors 2a and 2b in which a glass plate is fitted are also attached to the window. FIG. 3 is a front view showing the sliding door 1 alone. The sliding door 1 has a vertically long rectangular shape, and cushioning materials 3 are provided on both side edges thereof.
3 is installed alongside, and suspension wheels 4 and 4 are attached to both upper end sides. The suspension vehicle 4 is provided with a brake device 5.

FIG. 1 shows an embodiment of a suspension vehicle for a sliding door with a brake according to the present invention, which is a vertical piece 7 of a lifting tool 6 bent in an L shape.
A shaft 8 is provided on the shaft 8, and a roller 9 is rotatably supported on the shaft 8 via a bearing. A brake device 5 is screwed next to the roller 9, and a slider 10 projects below the brake device 5 to form the suspension vehicle 4, and a horizontal piece 11 is mounted on the upper end of the sliding door 1 and attached. It
Here, the slider 10 is biased by a spring force, protrudes downward from the lower end of the roller 9, and can be retracted by an external force acting from below.

FIG. 4 shows the details of the brake device 5. The slider 10 is attached to the cavity 13 formed inside the holder 12, and the lower end of the slider 10 projects below the holder 12. A coil spring 14 is built in the cavity 13 and an adjusting screw 15 is screwed on the upper side to press the coil spring 14 and bias the slider 10 with a spring force. A through hole is formed in the adjusting screw 15, and the pin 16 inserted from the holder 12 side reaches the through hole to prevent the adjusting screw 15 from rotating.

By the way, the slider 10 biased by the spring force of the coil spring 14 has a V groove 17 formed at the lower end thereof, and is pressed against the traveling surface of the rail. FIG. 5 shows a state in which the slider 10 is in pressure contact with the running surface 19 of the rail 18, and the running surface 19 has an arcuate surface conforming to the shape of the outer peripheral surface of the roller 9, and the running surface 19 has a V groove 17. 10 is in line contact. Since the roller 9 of the suspension vehicle 4 is mounted on the traveling surface 19, the slider 10 is retracted to the same height as the roller 9, and if the roller 9 rolls, the slider 10 is kept in pressure contact with the traveling surface 19. Although it slides on the slide 19, a certain amount of frictional resistance is generated in the slide. That is, the rolling resistance of the roller 9 is given to the rolling resistance as a result, and the opening / closing operation of the sliding door 1 becomes moderately heavy.

The V groove 17 of the slider 10 makes linear contact with the running surface 19 even if the running surface 19 has a slightly different arcuate shape, and if the contact surface rubs, the slider 10 is lowered by the action of a spring force. As a result, the frictional resistance is not significantly changed. Of course, if the frictional resistance changes significantly and the opening / closing operation of the sliding door 1 is hindered, the spring force for urging the adjusting screw 15 is controlled. As described above, the present invention is a suspension vehicle including a brake device that presses a slider against a rail to generate sliding friction, but the form of the slider is not limited to the above embodiment. For example, as shown in FIG. 6, the slider 20 is fixed to the tip of the leaf spring 21, and the suspension 6
If the holder 22 attached to the side can be moved up and down, the slider 20 can be pressed against the rail running surface 19 by the spring force of the leaf spring 21. By the way, by using the suspension vehicle configured in this way for the sliding door,
The following effects can be obtained.

[0013]

Since the suspension vehicle of the present invention is provided with the brake device, that is, by providing the slider which is brought into pressure contact with the rail and slides, resistance is given to the rolling movement of the roller.
Therefore, the opening / closing operation of the sliding door becomes moderately heavy, and even if the sliding door is opened / closed vigorously, the sliding door is not bounced greatly and is opened / closed smoothly. Even if the sliding door itself is light, it is possible to give the sliding door a heavy feeling by adjusting the brake device.

[Brief description of drawings]

1 is an embodiment showing a suspension vehicle of the present invention, a is a plan view, b
Is a front view and c is a side view.

FIG. 2 is an overall external view of a sliding door device.

FIG. 3 is a front view of a sliding door.

FIG. 4 is a specific example of a brake device attached to a suspension vehicle, in which a
Is a plan view, b is a front view, and c is a side view.

FIG. 5 shows a state where the slider of the brake device is in pressure contact with the rail running surface.

FIG. 6 is another specific example of the brake device.

FIG. 7: Conventional type suspension vehicle.

[Explanation of symbols]

 1 Sliding door 2 Sliding door 3 Buffer material 4 Suspended vehicle 5 Braking device 6 Lifting tool 7 Vertical piece 8 Axis 9 Roller 10 Slider 11 Horizontal piece 12 Holder 13 Cavity 14 Coil spring 15 Adjustment screw 16 Pin 17 V groove 18 Rail 19 Travel surface 20 Slider 21 Plate Spring 22 holder

Claims (1)

[Scope of utility model registration request] 1. A suspension vehicle for a sliding door, which is suspended from a rail along the upper part of the frontage and which opens and closes the frontage, wherein a suspending tool rotatably rotatably supporting a roller rolling on the rail is equipped with a brake device, A suspension vehicle for a sliding door with a brake, characterized in that the braking device has a slider that is pressed against the rail, and a spring force is applied to the slider.