JPH0620846U - Suspension vehicle for sliding door with brake - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] A sliding door that is hung on a rail along the upper part of the frontage to open and close the frontage, even if the door is opened and closed vigorously. Providing a suspension car that does not bounce significantly when hit by a car. A suspension vehicle equipped with a brake device 5 on a suspender that axially supports a roller 9, the brake device having a slider 10 that applies a spring force, and the slider is pressed against a rail to slide. Dynamic friction is generated to give an appropriate weight to the opening / closing operation of the sliding door.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a sliding door suspension vehicle that is suspended from rails and opens and closes.

[0002]

[Prior art]

 A suspension vehicle (running tool) is attached to the upper end of the sliding door, and is suspended on the upper rail of the frontage. The hoisting car rolls along the upper rail to open and close the sliding door, and a cushioning material with a high cushioning property is installed along the door end of the sliding door. The cushioning material cushions the impact force and impact sound generated when opening and closing the sliding door, but if it opens and closes vigorously, it can bounce against the vertical crosspiece of the frontage and completely open and close the sliding door. Disappear. In other words, even if the sliding door is closed, it will widen due to the bounce phenomenon, and the opened sliding door will hit the vertical rail on the opposite side and narrow the frontage.

As a matter of course, as the sliding door device, there is known a sliding door device configured to eliminate the impact when the sliding door is opened and closed and to prevent the sliding door from bouncing. This type of sliding door device is equipped 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. This is not realistic. Sliding doors that serve as entrances and exits of school classrooms cannot be equipped with the above devices, and a simple device using a structure that does not impose a cost burden is desired.

FIG. 7 shows a conventional type suspension vehicle which is attached to the upper end of the sliding door and suspends the sliding door. The suspension vehicle has a roller (c) pivotally supported by a horizontal shaft (b) provided on the suspension (a) via bearings, 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) is used to prevent the roller (c) from slipping off if the retaining ring comes off due to the axial load. To disengage from the bearing.

[0005]

[Problems to be solved by the present invention]

 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 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 and closed vigorously, and can give a heavy feeling to the opening and closing of the sliding door. To do.

[0006]

[Means for Solving the Problems]

 In the suspension vehicle of the present invention, a roller is rotatably supported by a shaft provided in the suspension, and this point has the same structure as the conventional suspension vehicle, but a brake device is provided next to the roller. . 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 or decreased, so that the above-mentioned pressure contact force can be adjusted. By the way, the holder to which the slider is attached is attached to a hanger that axially supports a roller, and the slider extends from the holder via spring force and contacts the rail surface.

[0007]

[Action]

 The suspension vehicle of the present invention is configured as described above, so that the roller is placed on the traveling surface of the rail and the slider of the brake device is brought into contact with the rail surface. Since the slider is biased by the 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 rail does not hit and rebound. 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, in which two sliding doors 1a and 1b are attached to the front side, and the front side is closed. A window is formed above the sliding door, and sliding doors 2a and 2b in which glass plates are 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 and 3 are provided along both side edges of the sliding door 1 and suspension wheels 4 and 4 are provided on both upper end sides. I am attached. The suspension vehicle 4 is provided with a brake device 5.

FIG. 1 is an embodiment showing a suspension vehicle for a sliding door with a brake according to the present invention, in which a vertical piece 7 of an L-shaped bent hanger 6 is provided with a shaft 8 through which a bearing is mounted. A roller 9 is rotatably supported. The brake device 5 is screwed next to the roller 9, the slider 10 projects below the brake device 5, and the suspension vehicle 4 is constructed. The horizontal piece 11 is mounted on the upper end of the sliding door 1. Be worn. Here, a spring force is applied to the slider 10 so that the slider 10 projects 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 comes into pressure contact with the running surface of the rail. 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. The slider 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 and moves, the slider 10 remains in pressure contact with the traveling surface 19. Although it slides along the slide 19, some frictional resistance is generated in the slide. That is, as a result, the rolling resistance of the roller 9 is given, and the opening / closing operation of the sliding door 1 becomes moderately heavy.

Although the V-shaped groove 17 of the slider 10 makes a line contact with the traveling surface 19 even if the arcuate shape of the traveling surface 19 is slightly different, and if the contact surface rubs, the slider 10 is moved by the action of the spring force. It does not fall and does not change the frictional resistance. Of course, if the frictional resistance changes so much that it hinders the opening / closing operation of the sliding door 1, the spring force for urging the adjusting screw 15 is controlled. As described above, the present invention is a suspension vehicle equipped with a brake device for generating sliding friction by pressing a slider against a rail, but the form of the slider is not limited to the above embodiment. For example, as shown in FIG. 6, if the slider 20 is fixed to the tip of the leaf spring 21 and the holder 22 attached to the hanger 6 side can be moved up and down, the slider 20 is moved by the spring force of the leaf spring 21. Can be pressed against the rail running surface 19. By the way, the following effects can be obtained by using the thus constructed suspension vehicle for the sliding door.

[0013]

[Effect of device]

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