JP3338765B2 - Electric curtain device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric curtain device for shielding a window of a vehicle.

[0002]

2. Description of the Related Art In recent years, as shown in FIG. 4, a vehicle is equipped with a motor-driven curtain device 81 for shielding a window (see Japanese Utility Model Publication No. 5-6866). The electric curtain device 81 includes a curtain rail 82 extending along an upper edge of a window portion, and a top runner as a moving body including a movable coil constituting a linear motor is provided in the curtain rail 82. 83 is slidably accommodated.

A guide 85 is formed at the lower edge of the curtain rail 81 over the entire area, and a curtain runner 86 for supporting a curtain is slidably held on the guide 85. This curtain runner 86
Consists of a left end runner 87 provided at the left end, and a plurality of driven runners 88,... Following the left end runner 87. The left end runner 87 is connected to the top runner 8.
3 is fixed in a state of being sandwiched by a pair of projections 89 provided on the lower edge.

Accordingly, when the top runner 83 is moved, the left end runner 87 is moved together with the top runner 83, and the end of the curtain supported by the left runner 87 is moved. The driven runners 88,... Are configured to be movable with the movement of the curtain.

[0005]

However, in the electric curtain device 81, since the left end runner 87 for moving the curtain is fixed to the top runner 83 having a movable coil of a linear motor, the top runner 83 is always loaded by the curtain. For this reason, since the top runner 83 always has a large starting force at the time of starting, the size of the movable coil provided on the top runner 83 cannot be avoided.

The present invention has been made in view of such a conventional problem, and provides an electric curtain device capable of smoothly opening and closing the curtain at the time of startup without increasing the size of the driving means. It is intended to provide.

[0007]

According to the present invention, there is provided a moving body which is moved in a closing direction and an opening direction along an extending direction of a curtain rail at the time of opening and closing operation. In the electric curtain device, which is moved in the closing direction and the opening direction along the extending direction in accordance with the movement of the moving body and includes a plurality of curtain runners that support a curtain, Providing an extending portion extending between adjacent curtain runners, the adjacent curtain runner is closed by a curtain runner moved by the extending portion at the time of closing operation, and the extending portion at the time of opening operation. The curtain runner is separated from the curtain runner on the open side to be moved, and is one of the curtain runner on the closed side and the open side by the extension. In a state in which preceded the other curtain runners, spaced from the extending portion, said configured so as to follow the one of the curtain runners.

That is, when closing the curtain in the open state, the moving body is moved in the closing direction.
Then, the curtain runner on the closing side, which is isolated by the extending portion provided on the moving body, is moved by the extending portion, and the curtain moves in the closing direction with the movement of the curtain runner on the closing side. Moved towards. At this time, the curtain runner on the open side separated by the extension portion is separated from the extension portion and moved to follow the curtain runner on the closed side, so in a state where the curtain is closed, A gap is formed between the extension and the curtain runner on the open side.

When the curtain in the closed state is opened, the moving body is moved in the opening direction, and the curtain runner on the opening side is moved by the extending portion of the moving body. At this time, since a gap is formed between the extending portion and the curtain runner on the open side,
From the time when the movement of the moving body is started to the time when the extending portion of the moving body is brought into contact with the curtain runner on the opening side and the movement of the curtain in the opening direction is started, A no-load moving state in which no load is applied to the moving body by the curtain is ensured.

Similarly, when the curtain in the open state is closed, a gap is formed between the extended portion and the curtain runner on the closed side. From the point in time when the extension is brought into contact with the curtain runner on the closing side and the point in time when the movement of the curtain in the closing direction is started, the load by the curtain is not applied to the moving body. The no-load movement state is ensured.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a linear motor type curtain device 1 according to the present embodiment. The curtain device 1 includes an upper curtain rail 3 provided along an upper edge of a window 2 of a vehicle, and The lower curtain rail 4 is provided along the lower edge of the window 2, and the curtain 5 has an upper edge and a lower edge supported by the curtain rails 3, 4.

As shown in FIGS. 2 and 3, the upper curtain rail 3 has a mounting surface 11 on which the curtain 5 is mounted, and a guide portion 12 having a rectangular cross section and opening toward the vehicle interior. And a protruding piece 13 protruding laterally from an upper edge of the guide portion 12. On the mounting surface 11, first and second rail portions 14 and 15 that open toward the vehicle interior are formed along the length direction of the upper curtain rail 3, and the opening portions of both rail portions 14 and 15 are formed. Flanges 16, 16, 1 protruding inward at the edges
7, 17 are formed respectively. A plurality of curtain runners 18 that support the upper edge of the curtain 5 at predetermined intervals L are movably provided on the second rail portion 15.

The first rail portion 14 is a rail used when a lace curtain is mounted. In use, a plurality of curtain runners 19 that support upper edges of the lace curtain at equal intervals are movably mounted. It is configured as follows. Circular cutouts 20 are formed in the flange portions 16, 16 of the first rail portion 14, and the cutouts 20 are formed in a size that allows the base 21 of the curtain runner 19 to be inserted. I have. Thereby, even if the end of the upper curtain rail 3 is concealed by the garnish 22 shown by a dashed line in FIG. It is configured so that it can be mounted on the rail section 14. A screw hole 23 is provided in a portion of the mounting surface 11 where the cut portion 20 is provided, and a screw 24 is screwed into the screw hole 23 to thereby form the cut portion of the curtain runner 19. It is configured to prevent inadvertent detachment from the motor 20.

The guide section 12 is provided on the second rail section 1.
5, an extension 31 formed by extending the flange 17 of the second rail 15 is formed at the opening edge of the guide 12. The extension 3
On the upper part of 1, there is formed an opposing portion 33 which extends inward from the left side surface 32 of the guide portion 12 and faces the extension portion 31. Protruding portions 34, 34 protruding opposite to each other are formed. These protrusions 34, 34 and the left side surface 32
A plurality of permanent magnets 35 having different polarities are arranged along the extending direction of the upper curtain rail 3 (see FIG. 3).

A movable body 41 is movably accommodated in the guide section 12. The movable body 41 is inserted between the extension section 31 and the facing section 33.
An electromagnet 42 facing the permanent magnet 35 is provided. The electrode 43 of the coil forming the electromagnet 42 projects from the back surface of the moving body 41,
Is configured to contact a power supply unit (not shown) provided on the right side surface 44 of the guide unit 12 and receive power supply. Thereby, the moving body 41 receives the propulsive force of the linear motor including the electromagnet 42 provided on the moving body 41 and the permanent magnet 35 provided on the guide portion 12, and closes along the upper curtain rail 3. Direction C
And in the opening direction O.

The moving body 41 includes a first first runner 18a of a plurality of curtain runners 18 arranged on the second rail portion 15 and a first runner 18a.
An extension portion 51 extending between the second runner 18b and the second runner 18b is provided at a portion protruding from the guide portion 12 toward the vehicle interior. An insertion portion 52 to be inserted into the second rail portion 15 is formed. As a result, when the moving body 41 is moved in the closing direction C, the curtain runner 18 is configured to move the first runner 18a in the closing direction C that is moved by the extending portion 51 and the opening direction O. When the second runner 18b is moved to the second runner 18b on the opening direction O side which is moved by the extending portion 51. The moving body 41
Is moved in the closing direction C, and the second runner 1
8b is the first runner 18a at the predetermined interval L
And a gap K is formed between the extending portion 51 and the second runner 18b (see FIG. 2). Further, the moving body 41 is moved in the opening direction O, and the first runner 18a is
However, while following the second runner 18b at the predetermined interval L, a gap K is formed between the extending portion 51 and the first runner 18a.

In this embodiment having the above configuration, when the curtain 5 in the open state is closed,
The power is supplied to the power supply section provided on the guide section 12 of the upper curtain rail 3, and the electromagnet 42 of the movable body 41 provided on the guide section 12 is excited to move the movable body 41 in the closing direction C. . Then, as shown in FIG. 2, the first runner 1 supporting the end of the curtain 5
8 a is urged and moved in the closing direction C by the extension 51 of the moving body 41. At this time, the second runner 18b is pulled by the curtain 5 to be moved, and is moved following the first runner 18a at a predetermined interval L. A gap K is formed between the first runner 18a.

When the curtain 5 in the closed state is opened, the moving body 41 is moved in the opening direction O, and the second runner 18b is extended by the extending portion 51 provided on the moving body 41. To the second runner 1
8b in the opening direction O. At this time, since the gap K is formed between the extending portion 51 and the second runner 18b, the extension of the moving body 41 starts at the time when the movement of the moving body 41 is started. Outgoing part 51,
A state in which no load is applied to the moving body 41 by the curtain 5 until the curtain 5 starts moving in the opening direction O while being brought into contact with the second runner 18b. Can be.

When the curtain 5 in the open state is closed, the extending portion 51 and the runner 1 of the body 1 are also closed.
8a, a gap K is formed, so that the extending portion 51 comes into contact with the first runner 18b from the time when the movement of the moving body 51 is started, and Until the movement of the moving object 5 is started, a no-load moving state in which no load is applied to the moving body 41 by the curtain 5 can be ensured.

As described above, at the time when the opening / closing operation of the curtain 5 is started, it is possible to secure a no-load moving state in which the load due to the curtain 5 is not applied to the moving body 41, and the curtain runner is fixed to the moving body. Since the load due to the curtain is always applied to the moving body, the size of the electromagnet 42 that determines the propulsive force of the moving body 41 is increased when the moving body is started, as compared with the related art that requires a large starting force. The opening and closing operation of the curtain 5 at the time of activation can be performed smoothly without inducing.

Since the first runner 18a for supporting the end of the curtain 5 is not restricted by the moving body 41, the end of the upper curtain rail 3 as shown by a chain line in FIG. The moving body 41 abuts on the garnish 22 that hides the first runner 18a supporting the end of the curtain 5 by the extending portion 51 of the moving body 41 to the end of the second rail 15. The curtain 5 can be manually moved to the end of the second rail 15 even when the curtain 5 cannot be moved.
Thereby, it is possible to ensure the light shielding property of the window 2.

[0022]

As described above, in the present invention,
At the time when the opening / closing operation of the curtain is started, it is possible to secure a no-load movement state in which the load is not applied to the moving body by the curtain. Is always applied to the moving body, so that when the moving body is started, the curtain at the time of starting can be increased without increasing the size of the driving means for driving the moving body, as compared with the related art that requires a large starting force. Opening and closing operations can be performed smoothly.

[0023]

[Brief description of the drawings]

FIG. 1 is a diagram showing a main part of an embodiment of the present invention.

FIG. 2 is a perspective view showing an upper curtain rail in the embodiment.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is an enlarged view of a main part showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Curtain device 3 Upper curtain rail 5 Curtain 18 Curtain runner 18a First runner 18b Second runner 41 Moving body 51 Extension part

──────────────────────────────────────────────────続 き Continued from the front page (72) Inventor Kazunari Sakurai 1185-1 Akubo, Ueda-shi, Nagano Pref. Inside Jonan Seisakusho Co., Ltd. −31367 (JP, U) Japanese Utility Model 3-112078 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A47H 5/02

Claims (1)

(57) [Claims] 1. A moving body which is moved in a closing direction and an opening direction along an extending direction of a curtain rail at the time of opening and closing operation, and the closing direction along the extending direction in accordance with the movement of the moving body. And in the electric curtain device comprising a plurality of curtain runners that support the curtain while being moved in the opening direction, the moving body is provided with an extending portion extending between adjacent curtain runners, An adjacent curtain runner is separated into a closed-side curtain runner moved by the extension during the closing operation and an open-side curtain runner moved by the extension during the opening operation, and In the state where one of the curtain runners of the closed side and the open side is run ahead by the other, the other curtain runner is Ri apart from, motorized curtain apparatus characterized by being configured so as to follow the one curtain runner.