JPH0552164U - Self-closing device in sliding door - Google Patents

Abstract

(57) [Abstract] [Purpose] It can be easily adjusted according to the width of various sliding doors or the opening of the building where sliding doors are installed. (EN) Provided is a self-closing device in a sliding door, which can prevent a personal accident due to a collision or the like and improve safety. [Structure] In a self-closing device 6 in which a rotating drum 10 containing a coil spring 12 energized by opening operation of a sliding door 1 is housed in a case 9, an energization adjustment is performed by being located on one outer surface of the case 9. A plate 13 was pivotally attached to one end of the support shaft 11, and a stopper plate 14 for restricting rotation of the energy storage adjusting plate 13 was detachably attached to the same surface as the energy storage adjusting plate 13.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a self-closing device for a sliding door configured to automatically close an opened sliding door.

[0002]

[Prior Art]

 Conventionally, sliding doors installed in hospitals, rehabilitation facilities, etc. are equipped with a self-closing device between the sliding door and the opening on the building side, which is operated by the opening operation of the sliding door, without performing the closing operation. Many self-closing sliding doors that are configured to automatically close when the sliding door that has been opened is released.

However, in the self-closing device used for the self-closing sliding door, a breeding drum containing coil springs is pivotally installed in a rectangular case installed on the sliding door side, and the breeding drum is It is configured to wind the start end of a winding wire whose one end is fixed to the door frame side, and to wind the winding wire around the livestock drum by the livelihood force of the coil spring to close the sliding door to the closing side. Therefore, the sliding door vigorously collides with the door frame due to the self-closing force of the self-closing device, and in order to adjust the self-closing force, it is troublesome to disassemble and assemble the self-closing device. It was something that had.

[0004]

[Problems to be solved by the present invention]

 The present invention has been made in view of the above circumstances to solve the drawbacks of the related art, and the purpose thereof is to use the same self-closing device but to store the coil springs. The power can be easily adjusted according to the width of the various types of sliding doors used or the opening of the building where the sliding doors are installed. It is an object of the present invention to provide a self-closing device for a sliding door that can prevent personal accidents caused by the accident and improve safety when opening and closing the sliding door.

[0005]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the technical means adopted by the present invention is such that a rotating drum having a coil spring, which is energized by the opening operation of a sliding door, inside a case installed on the upper end surface of the sliding door, is provided with a support shaft. Of the coiled spring, and the base end and the tip of the coil spring are attached to the support shaft of the rotating drum and the inside of the drum, respectively, and the end of the winding wire is fixed to the upper end of the building opening frame. In a self-closing device for a sliding door, the other end side of which is wound around the outer periphery of the rotating drum, a livestock adjusting plate positioned on one outer surface of the case is pivotally attached to one end of a support shaft, and The present invention is characterized in that a stopper plate for restricting rotation of the energy adjusting plate is detachably attached on the same side as the energy adjusting plate.

[0006]

[Action]

 Therefore, according to the present invention, the same self-closing device can enable proper self-closing operation of the self-closing device in accordance with various sliding doors or operating environments of the sliding doors, and thus, during opening / closing operation of the sliding door. Can improve the safety in.

[0007]

【Example】

 The configuration of the present invention will be described in detail with reference to an embodiment shown in the drawings. In FIG. 1, reference numeral 1 is a single-sliding sliding door, and 2 is an opening frame composed of a vertical frame 2a on the front side of the sliding door 1, a vertical frame 2b on the rear side of the door, and an upper frame 2c. The sliding door 1 is suspended and supported by left and right suspension rollers 4 and 5 which ride on a guide rail 3 extending inside the upper frame 2c, and horizontally opened and closed between the vertical frames 2a and 2b. At the same time, a self-closing device 6 is mounted between the hanging rollers 4 and 5 on the upper end surface of the sliding door 1, and a tip end of a winding wire 7 of the self-closing device 6 described later is provided on the door tip side of the upper frame 2c. It is fixed to the bracket 8 and is configured to constantly apply a self-closing force in the closing direction to the sliding door 1.

As shown in FIGS. 2 to 4, the self-closing device 6 pivotally supports a hollow rotary drum 10 on a support shaft 11 in a rectangular case 9 composed of a pair of divided case members 9a and 9b. A plate-shaped coil spring 12 is housed in the rotary drum 10, and a winding wire 7 is wound around the outer circumference of the rotary drum 10. The rotary drum 10 is formed by a drum body 10b having a stepped portion 10a formed on the outer periphery thereof, and a lid body 10c fitted on the open side of the drum body 10b, and the base end side of the coil spring 12 is a main body of the spindle 11. The coil spring 12 is locked inside the rotary drum 10 by locking it in a locking groove 11a formed in the rotary drum 10 and by locking the front end side in a locking groove 10d formed in the circumferential side portion of the rotary drum 10. It is designed to be attached.

Further, a four-sided energy storage adjusting plate 13 having a cross-shaped driver groove 13a engraved at the central position is pivotally attached to one end of the support shaft 11 from the outside of the split case member 9a. A rectangular stopper plate 14 is rotatably supported by a pin 15 at a position near the plate 13 via a pin 15.

On the other hand, on the outer periphery of the rotary drum 10, a slit 16 for locking the fastening piece 7a of the winding wire 7 is formed, and at the tip of the winding wire 7, an upper frame 2c is formed. A ring-shaped hook portion 17 fixed to a bracket 8 provided on the door end side of the vehicle is provided. Reference numeral 18 is a spacer bolt for fixing the split case members 9a, 9b, 20 and 20 are fixing fittings for fixing the rectangular case 9 to the upper end surface of the sliding door 1, and 21 is a screw for fixing the stopper plate 14.

In the above structure, when the sliding door 1 is opened, the sliding door 1 moves in the direction of arrow A while pulling out the winding wire 7 from the self-closing device 6. At this time, the rotary drum 10 of the self-closing device 6 rotates counterclockwise by the pulling-out operation of the winding wire 7, and the power of the coil spring 12 incorporated in the rotary drum 10 increases with the rotation. Then, when the opening operation of the sliding door 1 is released, the rotating drum 10 rolls and rotates clockwise by the elastic force of the coil spring 12 and the winding wire 7 moves the sliding door 1 in the closing direction. While being wound around the rotary drum 10, the sliding door 1 comes into contact with the vertical frame 2a on the door tip side of the opening frame 2, and the sliding door 1 is closed.

When the self-closing force of the self-closing device 6, that is, the storage force of the coil spring 12 is adjusted by the opening / closing operation of the sliding door 1 as described above, as shown in FIG. 5, a screw 21 for fixing the stopper plate 14 is used. When the stopper plate 14 is rotated outward with the pin 15 as a fulcrum, the animal energy adjusting plate 13 becomes rotatable, then the animal energy adjusting plate 13 has a cross-shaped driver groove. When the cross driver 22 is applied to 13a and rotated in the clockwise direction, the support shaft 11 that locks the proximal end side of the coil spring 12 also rotates in the clockwise direction, and the energy stored in the coil spring 12 increases. In addition, when the animal energy adjusting plate 13 is rotated counterclockwise, the animal energy of the coil spring 12 can be reduced contrary to the above. Next, when the stopper plate 14 is fixed by the screw 21, the outer circumference of the energy storage adjusting plate 13 is brought into contact with the stopper plate 14, and the energy storage adjustment state of the coil spring 12 is maintained. After that, the self-closing device 6 may be fixed to the upper end surface of the sliding door 1, and the hooking portion 17 of the winding wire 7 may be fixed to the bracket 8 provided on the door tip side of the upper frame 2c.

Therefore, it is possible to appropriately adjust the self-closing force according to the size of the building opening width or the weight of various sliding doors, and at the opening of the building facility that is often used by sick people, the elderly, infants, etc. By reducing the self-closing force of the self-closing device 6, it is possible to adjust the operating force in the returning direction when the sliding door 1 is closed, reducing the impact on the human body due to pinching of the limbs, and opening / closing operation of the sliding door 1. Can be done safely.

[0014]

[Effect of the device]

 In short, according to the present invention, in the case installed on the upper end surface of the sliding door, the rotating drum having the coil spring energized by the opening operation of the sliding door is pivotally supported via the support shaft, and The base end and the tip are attached to the spindle of the rotating drum and the inside of the drum, respectively, and the other end of the winding wire having the tip fixed to the upper end of the building opening frame is attached to the rotating drum. In a self-closing device for a sliding door that is wound around the outer periphery of the case, the energy storage adjusting plate is located on the outer surface on one side of the case and is attached to one end of the support shaft, and the same surface side as the energy storage adjusting plate. Since the stopper plate for restricting the rotation of the storage force adjusting plate is detachably attached to the same, the storage force of the coil spring is used for the lightness or weight of various sliding doors to be used while using the same self-closing device. Opening a building with a sliding door It can be adjusted appropriately according to the size of the frontage of the part, and the strength of the operating force in the returning direction of the self-closing sliding door can be easily changed, so that the sliding door can pinch the limbs or hit the body. This has the extremely useful practical effect of preventing accidents resulting in injury or death and improving safety during opening and closing operations.

[Brief description of drawings]

FIG. 1 is an overall front view of a sliding door.

FIG. 2 is a perspective view of a self-closing device.

FIG. 3 is an exploded perspective view of the same.

FIG. 4 is a vertical cross-sectional view of a main part of the same.

FIG. 5 is an operation explanatory view showing the adjustment procedure of the self-closing device.

[Explanation of symbols]

 1 Sliding Door 6 Self-closing Device 7 Winding Wire 9 Case 10 Rotating Drum 11 Spindle 12 Coil Spring 13 Energy Adjustment Plate 14 Stopper Plate

Claims (1)

[Scope of utility model registration request] 1. A case installed on the upper end surface of a sliding door,
A rotating drum containing a coil spring energized by the opening operation of a sliding door is pivotally supported via a support shaft, and the base end and the tip of the coil spring are attached to the support shaft of the rotating drum and the inside of the drum, respectively. The self-closing device in the sliding door formed by winding the other end side of the winding wire which is fastened to the upper end side of the building opening frame and is wound around the outer periphery of the rotating drum on one outer surface of the case. And a stopper plate for restricting the rotation of the animal energy adjusting plate is detachably attached to the same surface as the animal energy adjusting plate. Self-closing device for sliding doors.