JP3007674U - Curtain opening and closing device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a curtain opening / closing device that can be easily attached to a general-purpose curtain rail (for example, C-shaped rail) that is often used in general homes and hospitals. A curtain rail 7 is provided with a drive device having a helical toothed drive pulley 1 at one end, a driven pulley 3 at the other end, and a spiral resin-coated wire 2 is hung between both pulleys to form a curtain. Drive the DC motor 9, the worm 10, the gear reduction mechanism 11,
It consisted of twelve.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a curtain opening and closing device that opens and closes a curtain using a motor.

[0002]

[Prior art]

 Conventionally, in buildings such as general households, hospitals, apartments, and condominiums, many curtains that also serve as interiors have been installed and used near the windows of each department. When opening and closing such curtains, people have conventionally manually opened and closed them.

[0003]

[Problems to be solved by the device]

 However, in the case of the conventional curtain opening / closing method as described above, for example, in a room of a house where a bed-ridden person has a disability, or in a hospital where there are many bed-ridden people who have a physical disability. Had to open and close the curtain each time by someone other than the resident of the room. Therefore, there is a problem that the curtain cannot be opened and closed when there is no one other than the person in the room or house, and the curtain cannot be opened and closed when desired. There are several curtain opening and closing devices on the market, but they all require dedicated rails and are extremely expensive.

The present invention has been made to solve these problems, and the purpose thereof is to be easily attached to a rail used in a general home, a hospital or the like, and to reduce the manufacturing cost. Another object of the present invention is to provide a curtain opening / closing device that can reduce

[0005]

[Means for Solving the Problems]

 To achieve the above object, a feature of the present invention is to provide a drive device having a helical toothed pulley as shown in FIG. 3 at one end of a curtain rail, and a driven pulley at the other end of the rail. , A spiral resin-coated wire as shown in FIG. 4 is endlessly laid between the two pulleys and moved in the longitudinal direction of the rail, and is locked by the wire as shown in FIG. To open and close the curtain.

Further, the drive device uses a DC motor, and the rotation thereof is decelerated by the worm and the gear train to be transmitted to the toothed pulley.

[0007]

[Action]

 The wire shown in FIG. 4 is made by bundling a large number of stainless steel wires, and the outer circumference thereof is spirally coated with nylon resin, so that it is flexible and has a small outer diameter and high tension. By reducing the height of the helical toothed pulley that meshes with this wire to make it compact, the drive unit can be housed in a small curtain rail such as a C-shaped curtain rail as shown in FIG. I can. In addition, since the drive device uses a DC motor, a high output can be obtained even if it is small, and it can be made compact, and the motor can rotate forward and backward by switching the power supply, reducing the cost of the entire drive device. Be peeled off.

[0008]

【Example】

 The present invention will be described based on an embodiment shown in the drawings. [Embodiment 1] FIG. 1 is a perspective view of a curtain opening / closing device drive unit according to a first embodiment of the present invention. The case 20 of the drive device is provided with a holding plate 8 having a T-shaped cross section on the upper surface, and the drive pulley 1 projects vertically from the holding plate 8. The case 20 is attached to one end of the C-shaped curtain rail 7 by inserting the holding plate 8 in the longitudinal direction from one end of the C-shaped curtain rail 7. The drive pulley 1 is fixed to the output shaft 19, and the output shaft 19 is directly connected to the output side of the clutch 15 in the case 20. The input side of the clutch 15 is integrated with the output gear 16, and the output gear thereof is supported by the fork 13 of the solenoid 14. The worm 10 is fixed to the rotating shaft of the motor 9 built in the case 20, and the rotation of the worm wheel 11 meshing with the worm is transmitted to the output gear 16 via the idle gear 12.

As shown in FIG. 3, the drive pulley 1 is provided with helically convex teeth. As shown in FIG. 4, the wire 2 driven by meshing with this is made by bundling fine stainless steel wires and coating the surface thereof with a nylon resin in a spiral shape. This wire 2 is marketed as a synchromesh rope (AS-60 manufactured by Asahi Intecc Co., Ltd.) and has an outer diameter of 1.5 mm and a spiral pitch of 2.8 mm. This wire 2 is wound around the toothed pulley 1 and the driven pulley 3 shown in FIG. The driven pulley 3 is attached to the holding plate 5, and the holding plate 5 is fixed to the C-shaped curtain rail together with the rail end cover 6.

Two leading runners 4 as shown in FIGS. 1 and 5 are locked to the wire 2, and one leading runner 4 is locked in the single-opening method. On the other hand, the motor is DC12V and rotates 5500 times, but the speed is reduced to 1/44 by the gear train. The solenoid 14 operates with a direct current of 12 V, and the clutch 15 is engaged and disengaged by moving the fork 13 up and down. Electricity is connected in parallel to the motor and the solenoid, and the motor rotates simultaneously with energization, the solenoid also operates and the drive pulley 1 rotates, and when the electricity is cut off, the motor stops, the solenoid operation also stops, and the fork It goes down and the clutch comes off.

Since + and-of the power source are reversed by switching the slide switch 17, the motor is rotated forward and backward to open and close the curtain. The moving speed of the leading runner was 10 cm / sec, and the opening / closing speed of the curtain was 20 cm / sec in the case of the double-opening method. [Embodiment 2] FIG. 2 is a cross-sectional view of a driving device using a multi-strand worm. The worm 10, which is directly connected to the motor 9, has a four-threaded worm, a pitch circle diameter of 5φ, a module of 0.5, and a lead angle of 23 degrees and 35 minutes. The speed reduction ratio by the worm / gear train is 1/27, the motor 10 is 3300 rotations at DC 12v, and therefore the moving speed of the leading runner is 10 cm / sec, which is the same as that of the first embodiment. As in the first embodiment, the pressing plate 8 is fixed on the upper surface of the case 20, and the pressing plate 8 can be attached to the C-shaped curtain rail 7. The method of passing the drive pulley 1 and the wire 2 is exactly the same as in the first embodiment. This drive device has no clutch, and therefore the output shaft and the drive pulley 1 are integrated, but since the worm has a large lead angle of 23 degrees and 35 minutes, resistance to manual rotation of the motor 9 is small. Therefore, the leading runner 4 can be manually moved even when the power supply is stopped, so that the curtain can be manually opened and closed even in the event of a power failure.

Even when an electromagnetic clutch is provided on the output shaft, if the multi-threaded worm is used as the worm, the curtain can be opened and closed with certainty even if a clutch bite occurs.

[0013]

[Effect of device]

 As described above, the curtain opening / closing device of the present invention does not need to use a dedicated curtain rail, and can be easily attached to a guide curtain rail, for example, the most widely used C-shaped curtain rail, and Since it has a simple structure using a small DC motor, it has the excellent effect of reducing the manufacturing cost.

[Brief description of drawings]

FIG. 1 is a perspective view of a curtain opening / closing drive device according to an embodiment of the present invention,

FIG. 2 is a sectional view of a curtain opening / closing device according to a second embodiment of the present invention,

FIG. 3 is a perspective view of a drive pulley,

FIG. 4 is a front view showing the main part of the wire,

FIG. 5 is a perspective view of a curtain leading runner,

FIG. 6 is a perspective view of a driven pulley and a holding plate,

[Explanation of symbols]

1: drive pulley, 2: wire, 3: driven pulley, 4:
Lead runner, 5: Presser plate, 6: Rail end cover,
7: C-shaped curtain rail, 8: Presser plate, 10: Single-row worm, 11: Worm wheel, 12: Idle gear, 13: Fork, 15: Clutch, 16: Output gear, 17: Slide switch, 19 ": Output shaft , 20:
Case

Claims (4)

[Scope of utility model registration request] 1. A drive device for rotating a helical toothed drive pulley (1) is provided at one end of a curtain rail (7), the drive pulley is provided inside one end of the curtain rail, and a driven pulley () is provided inside the other end. 3) are attached respectively,
A curtain opening / closing operation in which a spiral resin-coated endless wire (2) is movably laid between the pulleys in the longitudinal direction of the curtain rail, and a leading runner (4) for opening / closing the curtain is locked to the endless wire. In the apparatus, the drive device includes a case (20) that can be hung on the curtain rail, a DC motor (9) housed in the case, and a worm that decelerates the rotation of the DC motor and transmits the rotation to the drive pulley. Gear train (11, including 10)
12), wherein the drive pulley is fixed to an output shaft (19) of the gear train protruding from the case. 2. The curtain opening / closing device according to claim 1, wherein an electromagnetic clutch (15) is provided on the output shaft (19). 3. The curtain opening / closing device according to claim 1, wherein the worm (10) of the drive unit is a multi-row worm. 4. The curtain opening / closing device according to claim 1, wherein the worm (10) of the drive device is a multi-row worm, and the output shaft (19) is provided with an electromagnetic clutch (15).