JP3139407B2 - End structure of electric curtain - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in an end structure of an electric curtain.

[0002]

2. Description of the Related Art In recent years, electric curtains that convey a curtain suspended and supported by a runner by a linear motor or the like have been widely used. As this type of electric curtain device, for example, as shown in FIG. 6, an opening groove (see FIG. 6) which is formed in a substantially cylindrical elongated shape and penetrates in the longitudinal direction of the lower surface on which the runner 6 supporting the curtain 5 moves. Stator block A composed of rail body 1 having
An electric curtain by a linear motor having a mover block B having, as main components, a mover block B having the above-mentioned runner as appropriate, and being movably provided so as to push or pull the runner along the longitudinal direction of the rail body 1. There is a device.

[0003] The rail body 1 is magnetized and arranged on the rail body 1 so as to form a stator block, having different poles in the thickness direction and different poles at regular intervals in the longitudinal direction. The permanent magnet 11 and the long flat plate-shaped power supply board 12 in which positive and negative conductive portions are alternately formed at predetermined intervals in the longitudinal direction via an insulating portion to supply power to the electromagnet formed in the mover block. Is provided. For example, in the case of a double-opening electric curtain shown in FIG. 6, the power supply board 12 includes a coupling member 1 provided substantially at the center of the rail body 1.
Power is supplied via a contact fitting (not shown) of a power supply member integrated with the power supply member 3.

[0004] Reference numeral 2 denotes a rail cap provided and fixed to the end of the rail main body. A hook 51 attached to the upper edge side end of the curtain 5 like a double opening electric curtain shown in FIG. Annulus 21 as suspension means for suspension
The hook 51 attached to one end of the upper edge of the curtain 5 is suspended, so that the upper edge of the curtain 5 is fixed to the end of the curtain rail and the portion is fixed. It is prevented from being opened. The rail cap 2 is fixed to the rail body 1 by a fixing means such as a screw.
And a shock absorbing member 3 for absorbing a shock when the mover block B reaches the end of the rail main body 1 is disposed.

The mover block B has a movable base on which a brush Ba, which constitutes an electromagnet and is connected to an end of a coil wound on a bobbin, is arranged. It is provided substantially integrally so as to be movably guided by the tracks arranged in parallel with the one opening groove. A hook 51 attached to the other end of the upper edge of the curtain 5 is suspended in the through hole Bc formed in the movable table.

The above-mentioned electric curtain device is arranged in a house opening such as a window as shown in FIG. 6 in the same manner as a general manual opening and closing curtain rail in order to improve the light shielding property when the curtain is closed. Is stored in the closed curtain box 7. Then, a current flows from the conductive portion of the power supply substrate 12 to the coil via the brush Ba, and a magnetic attraction and repulsion action of the permanent magnet 11 of the stator block A and the electromagnet of the mover block B caused by the current flows. For example, six movable element blocks connected in series are driven in a certain direction, and the curtain 5 suspended on the runner 6 is opened and closed.

[0007]

In general, the electric curtain described above is first installed with an electric curtain device by an electrician, and then the curtain is attached to the upper edge side by an interior contractor. Hook 5
1 is suspended from the runner and installed. However, in order to enhance the light-shielding property of the side edge when the curtain is in the closed state, the rail cap 2 is shifted from the regular position of the rail main body 1 as in, for example, a double-opening electric curtain shown in FIG. In some cases, the length of the curtain rail is substantially increased. As a result, from the normal stop state where the mover block B comes into contact with the shock absorbing member 3 shown by the broken line,
Further, it moves to a position where it comes into contact with the shock absorbing member 3 displaced to the end. Then, the contact between the brush Ba provided on the mover block B and the power supply substrate 12 may be released, and the brush may be damaged.

The present invention has been made in view of the above circumstances, and an object thereof is that the moving distance of the movable block does not change even if the rail cap is fixed by shifting the relative position with respect to the rail body. Accordingly, it is an object of the present invention to provide an electric curtain end structure capable of adjusting the length of a curtain rail while keeping the moving distance of a mover block constant.

[0009]

In order to achieve the above object, an end structure of an electric curtain according to the present invention has a substantially cylindrical shape, and a longitudinal direction of a lower surface on which a runner supporting the curtain moves. Means for suspending a rail body having an opening groove formed therethrough and constituting a stator block, and a hook fixed to an end of the rail body and attached to an upper edge end of the curtain And a shock absorbing member for absorbing a shock when the mover block movably provided along the longitudinal direction inside the rail body reaches the end of the rail body. In the end structure, the shock absorbing member is fixed to an arrangement means arranged at a predetermined position with respect to the rail body, and the rail cap is changed in a relative position with respect to the rail body. Forms that can be fixed by.
Thus, the rail cap is fixed by changing the relative position with respect to the rail main body, and the shock absorbing member is fixed to the arranging means and is arranged at a predetermined position on the rail main body.

Further, the end structure of the electric curtain according to the second aspect is such that the disposing means according to the first aspect is fixed to the rail main body together with the rail cap. Thus, the disposing means is fixed to the rail main body together with the rail cap.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of an end structure of an electric curtain according to the present invention; FIG.

FIG. 1 is a side sectional view showing a main part of an end structure of an electric curtain according to the present invention. FIG. 2 is a bottom side view of the end of the curtain rail shown in FIG. FIG. 3 is a perspective view of a mounting bracket in the end structure of the electric curtain shown in FIG. FIG. FIG. 2 is an exploded perspective view of a fixing fitting in the end structure of the electric curtain shown in FIG. 1. FIG. 5 is an explanatory view for explaining the length adjustment of the end structure of the electric curtain shown in FIG. 1.

The end structure of this electric curtain constitutes an electric curtain device using a linear motor similar to that described in the conventional example, and comprises a rail body 1, a rail cap 2, and a shock absorbing member 3. Mounting bracket 3 for installation
1 and a fixing fitting 4. The components of the linear motor are the same as those of the conventional example, and therefore, detailed description is omitted.

The rail main body 1 is made of a non-magnetic material such as aluminum in this case, and is formed in a substantially cylindrical shape.
As shown in FIG. 2, an opening groove 1a is formed through the runner 6 supporting the curtain 5 with a predetermined width dimension in the longitudinal direction of the lower surface on which the runner 6 moves. It is cut to a predetermined length and formed. For example, as shown in FIG. 6, mounting holes (not shown) for installation on a curtain box or the like are provided on the upper surface of the rail main body 1 via a bracket at predetermined intervals. At a position, a locking hole 1b for locking an arrangement metal fitting 31 described later is formed.

The rail caps 2 are disposed and fixed to the ends of the rail body 1, respectively. The rail caps 2 are made of a synthetic resin material such as an ABS resin material and have a box shape with a one-sided opening. The insertion opening 2a to be extended is extended,
It is formed to have a communication groove 2b communicating with the opening groove 1a. The rail cap 2 is externally fitted to the rail main body 1 at an opening surface 2c, and is fixed at an appropriate position to
Is formed in a box shape having a dimension slightly larger than the U-shaped outer dimension of the rail main body 1 so as to be fixed. On the lower surface of the rail cap 2, there is provided the same ring body 21 as a conventional example, which corresponds to a suspension means for suspending a hook attached to the upper edge side end of the curtain.

The shock absorbing member 3 is for absorbing a shock when the mover block B movably provided along the longitudinal direction inside the rail body 1 reaches the end of the rail body 1. For example, it is formed in a cubic shape with an elastic material such as urethane sponge material. The shock absorbing member 3 is fixed to a mounting bracket 31 described later, for example, by bonding two surfaces of a cube with an adhesive or the like. As a result, the shock absorbing member 3 is disposed at a predetermined position with respect to the rail body 1.

The mounting bracket 31 corresponds to a mounting means for mounting the shock absorbing member 3 at a predetermined position with respect to the rail main body 1, and is bent and extended from a substantially U-shaped base viewed from a side arrow. It has an arrangement piece 31a on which the shock absorbing member 3 is arranged, and is formed to have a substantially U-shaped outer dimension between the opposing pieces so that it can be fitted inside the end of the rail body 1 as shown in FIG. I have. One of the U-shaped opposed pieces has a communication opening 31b communicating with the opening groove 1a, and the other outer surface has the engaging hole 1a.
The rail 31 has a projection 31c that engages with the b and a contact portion 31d that contacts the end surface of the substantially U-shaped opposing wall of the rail body 1 at the edge of the U-shaped base.

The fixing metal member 4 corresponds to a fixing means for fixing the rail cap 2 and the mounting metal member 31 to the end of the rail body 1, and has a screw 41 and an insertion hole 42a through which the screw 41 is inserted. The U-shaped base 42b has a flange 42c,
The main body 42 has a metal fitting 2c and a narrow attachment piece 43 for fastening the rail cap 2 to the rail main body 1 together with the metal fitting main body 42 by tightening the screw 41. The bracket main body 42 includes U-shaped standing pieces 42d, 42.
The width dimension of d is slightly smaller than the width dimension of the opening groove 1a of the rail body 1, and one of the standing pieces 42d moves in the axial direction without rotating together with the narrow attachment piece 43 when the screw 41 is tightened. It is formed with a long dimension for guiding. The narrow attachment piece 43 has a width slightly smaller than the insertion opening 2a, and is formed in a square shape with a female screw 43a so that the screw 41 is screwed substantially at the center.
Both edge ends abut against the mounting bracket 31 and are slightly bent toward the metal fitting body 42 in order to more firmly fix the rail cap 2. The fixing fitting 4 described above fixes the rail cap 2 to the rail main body 1 at an appropriate position adjacent to the insertion opening 2a of the rail cap 2.

The electric curtain device described above is, for example, housed and installed in a curtain box 7 as shown in FIG.
Then, when the curtain is installed after the electric curtain device is attached, first, in order to obtain the required number of runners, the screw 41 of the fixing metal fitting 4 is loosened and moved along the communication groove 2b to thereby fix the number of runners. From the rail body 1. Next, the runner 6 is removed by moving along the opening groove of the rail main body 1, or is inserted through the insertion opening 2a and moved along the communication groove 2b to be attached. When the rail cap 2 is shifted from the regular position of the rail body 1 to substantially increase the length of the curtain rail in order to enhance the light shielding property of the side edge when the curtain is closed, As shown in FIG. 5B, the outside of the rail cap 2 of the curtain rail is brought into contact with the inside of the curtain box in the longitudinal direction, and the mounting bracket 31 is fixed to the rail main body 1 together with the rail cap 2. As a result, in the opening operation of the curtain 5, the mover block B stops at a position where it comes into contact with the shock absorbing member 3 fixed to the mounting bracket 31. Therefore, the mover block B stops at a position where the contact between the brush Ba provided on the mover block B and the power supply board 12 is maintained, and the brush is not damaged.

According to the end structure of the electric curtain described above, the rail cap 2 is fixed by changing the relative position with respect to the rail main body 1, and the shock absorbing member 3 is fixed to the mounting bracket 31 to fix the rail main body 1. Since the rail cap 2 is disposed at a predetermined position, even if the rail cap 2 is fixed by shifting the relative position with respect to the rail body 1, the movable block B
Does not change, so that the length of the curtain rail can be adjusted while keeping the moving distance of the mover block B constant. Further, since the mounting bracket 31 is fixed to the rail body 1 together with the rail cap 2, no special fixing means is required for fixing the mounting bracket 31,
Thus, it can be constructed at low cost.

[0021]

In the end structure of the electric curtain according to the first aspect, the rail cap is fixed by changing the relative position with respect to the rail main body, and the shock absorbing member is fixed to the arranging means, and the rail main body is fixed to the predetermined position of the rail main body. The moving distance of the mover block does not change even if the rail cap is displaced relative to the rail main body, so that the moving distance of the mover block can be kept constant. The length of the curtain rail can be adjusted.

The end structure of the electric curtain according to the second aspect has the same effects as those of the first aspect, and furthermore, the arrangement means is fixed to the rail body together with the rail cap. No special fixing means is required for the fixing, and therefore, it can be configured at low cost.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing a main part of an end structure of an electric curtain according to the present invention.

FIG. 2 is a bottom side view of an end of the curtain rail shown in FIG. 1;

FIG. 3 is a perspective view of a mounting bracket in the end structure of the electric curtain shown in FIG. 1;

FIG. 4 is an exploded perspective view of a fixing fitting in the end structure of the electric curtain shown in FIG.

FIG. 5 is an explanatory diagram for explaining the length adjustment of the end structure of the electric curtain shown in FIG. 1;

FIG. 6 is a perspective view showing an example of an electric curtain.

FIG. 7 is an explanatory view for explaining the length adjustment of the end structure of the conventional electric curtain.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rail main body 1a Opening groove 2 Rail cap 21 Ring (suspension means) 3 Shock absorbing member 31 Arrangement fitting (arrangement means) 5 Curtain 51 Hook 6 Runner A Stator block B Mover block

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) A47H 1/00-23/14 H02K 41/02

Claims (2)

(57) [Claims] 1. A rail body which has a substantially cylindrical shape and has a stator block formed with an opening groove penetrating in a longitudinal direction of a lower surface on which a runner supporting a curtain moves, and a rail body. A rail cap having a suspension means for suspending a hook attached to an upper edge end of the curtain, and a movable block movably provided along a longitudinal direction inside the rail body. And a shock absorbing member for absorbing a shock when the rail reaches the end of the rail main body. An arranging means for arranging the shock absorbing member at a predetermined position with respect to the rail main body. An end portion of the electric curtain, wherein the rail cap can be fixed by changing a relative position with respect to the rail main body. 2. An end structure of an electric curtain according to claim 1, wherein said disposing means is fixed to a rail main body together with said rail cap.