JPH0412908Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a winding device for sunshades, etc., which is used for winding up sunshades, shutters, etc.

(Prior Art) What is shown in FIG. 2 is a side view of a sunshade to which the present invention is applied. To explain this, 1 is a window frame and 2 is a window. 3 is an awning which is rolled up by a winding device 4 attached to the window frame 1, and is unrolled and expanded. A bracket 5 is attached to the side of the window 2 and supports the lower end of the column 6. The struts 6 are engaged with the tips of the sunshades 3 as shown by solid lines when the sunshades 3 are expanded, and the ends are engaged with and held by the winding device 4 when the sunshades 3 are rolled up.

What is shown in FIG. 3 is the internal structure of the conventional hoisting device 4 shown in FIG. To explain this, 7 is an outer cylinder, one end of which is rotatably supported by a bearing 8 provided inside the hoisting device 4. The other end of the outer cylinder 7 enters a manual gearing device 9, which is also provided in a part of the hoisting device 4, and is connected to and supported by the output side of the gear group 10. The manual gear device 9 receives manual power from the outside through a manual shaft 11, and also receives electric power from the following structure. A hollow shaft 12 is provided inside the outer cylinder 7, and rotational force is transmitted to the outer cylinder 7 via a drive shaft 13 at the right end in the figure. Inside the shaft 12 is an electric motor 14;
A speed reducer 16 is connected to the electric motor 14 via a clutch 15, and a controller 18 is connected to the electric motor 14 via a slip ring 17.

The conventional hoisting device 4 having such a structure connects a handle (not shown) to the manual shaft 11 to apply rotational force to the manual gear device 9, or operates the electric motor 14 to generate torque through the clutch 15 and reducer 16. Provides electric rotational force. As a result, the outer cylinder 7 rotates, so if a cloth as a sunshade is wound around the outer cylinder 7, the cloth can be spread out or rolled up.

(Problems to be Solved by the Invention) In the conventional hoisting device described above, when operating with electric power, the shaft 12 is kept in a fixed state, and the drive shaft 1
2 to rotate the outer cylinder 7 and roll up the sunshade. In addition, when operating manually, by applying rotational force to the manual shaft 11 with a handle (not shown), the shaft 11 is operated via the manual gear device 9.
2 will be rotated. Therefore, in the case of manual operation, the controller 18 must be fixed to the shaft 12, and as a result, a slip ring 17 is provided between it and the electric motor 14 to exchange power and disconnection signals. There is an unavoidable problem. The present invention was made with the aim of solving this problem.

(Means for solving the problem) The present invention, as a means for solving the above problem, uses both manual force applied by a handle etc. and electric power obtained by a motor to In a winding device for a sunshade, etc., which rotates an outer cylinder provided on the shaft, a differential planetary gear is used as the manual/electric switching mechanism, and a controller is disposed off-axis.

(Function) With this configuration, the shaft can always be kept in a fixed state by the differential planetary gear, whether driven by manual force or electric power, so sliding This eliminates the need to use slip rings that have multiple parts and are unreliable, reducing the number of parts and costs, as well as reducing labor during manual operation.

(Embodiment) Next, an embodiment of the present invention will be described with reference to FIG. 1. In the embodiment of the present invention, the shaft 12 is fixed integrally with the manual gear device 9. Inside this shaft 12, only an electric motor 14, a clutch 15, and a reduction gear 16 are accommodated, and a controller 18 is disposed outside the manual gear device 9. For this reason, slip rings are not used. Manual gearbox 9
is a differential gear mechanism as shown in the figure,
When the manual shaft 11 is rotated, the rotational force is transmitted only to the outer cylinder 7 and not to the shaft 12.

In this device configured in this way, as can be seen from the illustrated structure and the above explanation, when operated by manual force, the force is transmitted only to the outer cylinder 7 and is not transmitted to the electric motor 14 at all. It turns out. There is therefore no loss of effort during manual operation. When driving by electric power, electric motor 1
The rotational force generated by 4 is transmitted to the reducer 16 via the clutch 15, and from the operating gear 9 to the outer cylinder 7.
is transmitted to. Since the controller 18 is located outside the shaft 12, a slip ring is not required, and there is a degree of freedom in its structure and operation.

(Effects of the invention) Since the present invention is constructed as described above, the hoisting device for sunshades, etc. (applicable to shutters, etc. in addition to sunshades) can be made with a significantly simpler structure than conventional ones, at low cost, and can be manually operated. In some cases, a winding device can be obtained that does not involve any waste of labor. And by not using a slip ring, reliability is also significantly improved.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of one embodiment of the present invention, FIG. 2 is a side view of the sunshade device, and FIG. 3 is a sectional view of the conventional side of the sunshade device. 3... Sunshade, 4... Winding device, 7... Outer cylinder, 9... Manual gear device, 14... Electric motor,
18... Controller.

Claims (1)

[Scope of utility model registration request] In a winding device for an awning or the like that rotates an outer cylinder provided on the outer periphery of a shaft using both manual force applied by a handle or the like and electric power obtained by a motor, switching between manual and electric power is provided. A winding device for sunshades, etc., characterized in that a differential planetary gear is used in the mechanism, and a controller is disposed off-axis.