JP2003033270A - Winder unit for curtain opening facilities - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a winder unit for curtain opening facilities which can securely prevent an elevating rope from coming off and enables work to fix or separate the rope to be carried out simply and easily. SOLUTION: A fixing member 33 (coming-off-preventing member) is moved to a side which an inserting window 35 and an inserting groove 36 of the main body constituting this winder unit 30 are opened. Then, the upper end part of an elevating rope 31b is inserted through in between rails 20a, 20b of a curtain rail 20 and the through window 35 of the unit main body 32 into an engaging groove 31c of the winder drum 31, forcibly into between projections 31d, 31d of the engaging groove. After that, the fixing member 33 is moved to a side the inserting window 35 of the unit body 32 and the inserting groove 36 are closed to regulate the elevating rope 31b on the winding face of the winder drum 31.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winding unit for a curtain opening / closing device that pulls up and opens (tucks up) curtains such as curtains, screens, blinds, and curtains.

[0002]

2. Description of the Related Art Conventionally, as a mounting structure for a lifting cord for pulling up and opening a curtain in the above-mentioned example, for example, one end of the lifting cord is formed in an insertion hole formed in a flange portion on one end side of a winding drum housed inside a curtain rail. There is a structure (Japanese Utility Model Publication No. 5-9889) in which a knot is formed and fixed at the end portion of the elevating string on the insertion side.

Further, one end of the lifting / lowering cord is inserted into a groove formed on one end side of a winding drum accommodated in the curtain rail, and a knot is formed and fixed at the insertion side end, or one end of the lifting / lowering cord. A structure in which the fitting member fixed to the winding drum is fitted and fixed to the peripheral surface on one end side of the take-up drum (Japanese Patent Laid-Open No. Hei 11).
-206552).

[0004]

However, in the former structure, a knot is attached to one end of the lifting cord inserted into the insertion hole of the winding drum before or after the winding drum is housed in the curtain rail. Since it is formed and fixed, the knot is untied and one end of the lifting / lowering cord is pulled out from the insertion hole of the winding drum, so that the work of fixing and separating the lifting / lowering cord takes time and time. Have

Further, in the latter structure, when the curtain hung on the curtain rail swings in the left-right direction (axial direction), one end of the lifting / lowering cord is pulled toward the groove portion side of the winding drum to raise and lower the same. One end of the cord may fall out of the groove of the winding drum. Moreover, when the fitting member is moved to the winding surface side of the winding drum by the pulling force of the curtain applied to the lifting cord, the hanging load of the curtain causes the fitting member having one end of the lifting string to be wound by the hanging load of the curtain. It has a problem that it may fall off the drum.

In view of the above problems, the present invention inserts one end of the lifting cord through the insertion window of the winding unit and inserts it into the locking groove of the winding drum, and closes the insertion window of the winding unit with the retaining member. Therefore, the purpose of the present invention is to provide a take-up unit for a curtain opening / closing device that can reliably prevent the lifting / lowering cord from falling off and can easily and easily fix or separate the lifting / lowering cord.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention draws or winds an elevating cord by forward or reverse rotation of a winding drum held in a winding unit or a winding unit housed in a rail.
A winding unit for a curtain opening / closing device that pulls up and opens a curtain connected to the lifting string in the vertical direction, wherein an opening for hanging the lifting string is formed on the lower surface side of the winding unit or the rail lower surface. Formed on the lower surface side of the winding unit by being exposed between the rails, and an insertion window through which the elevating cord is inserted is formed continuously with the side portion of the opening, and is engaged to lock one end of the elevating cord. A groove is continuously formed on the winding surface from one end side of the winding drum so as to face the insertion window, and a retaining member for closing the insertion window is provided on the lower surface of the winding unit so as to face the insertion window. Side or a lower surface side of the winding unit exposed between the rails of the rail, and the removal preventing member is movable to a closed position where the insertion window is closed and an open position where the insertion window is opened. It must be a winding unit for the provided curtain opening / closing device. And it features.

The curtain described above can be composed of, for example, a curtain, a screen, a blind, a curtain. The elevating string can be composed of, for example, a fiber or resin string, a cord, a belt, or the like. The retaining member can be composed of, for example, a fixing member, a cover, a lever, an arm, or the like. The rail can be configured by, for example, a curtain rail having an open bottom surface, a box rail, or the like. In other words, after moving the retaining member to the side where the insertion window of the winding unit is opened, one end of the lifting cord is inserted through the insertion window of the winding unit and inserted into the locking groove of the winding drum. After that, the retaining member is moved to the side where the insertion window of the winding unit is closed, and the lifting cord is regulated on the winding surface of the winding drum.

As an embodiment, an insertion groove through which the lifting cord is inserted is formed between the opening and the insertion window, and the retaining member has a size that closes the insertion window and the insertion groove when moved to the closed position. Can be formed into Further, a protrusion that guides one end of the lifting cord in the insertion direction and imparts resistance to the direction in which the lifting cord is prevented from being pulled out can be formed at the opposite edge portion of the locking groove.

[0010]

According to the present invention, one end of the lifting cord is inserted through the insertion window of the winding unit and inserted into the locking groove of the winding drum, and then the insertion window of the winding unit is retained. Since it is closed and prevented from coming off by the above, the lifting cord is regulated on the winding surface of the winding drum, and it is possible to reliably prevent the lifting cord from falling off.

Moreover, the labor and work of separating the winding drum from the winding unit and removing the winding unit from the rails can be omitted, and the work of fixing or separating the lifting cord can be performed easily and easily, and the lifting cord It is possible to shorten the working time required for fixing or separating and to improve workability and efficiency.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings.

The drawing shows a winding unit of a curtain opening / closing device that pulls and opens a curtain, which is an example of a curtain, in a vertical direction by a manual operation. In FIG. 1, the curtain opening / closing device 10 is formed in a bottom open shape. The curtain rail 20 is erected on, for example, a window portion (upper window frame), a wall portion, a ceiling portion, a beam, or the like, and a plurality of winding units 30 are separated from each other inside the curtain rail 20 at predetermined intervals in the longitudinal direction. 40, which is housed and fixed in place, and is erected inside the curtain rail 20.
Is passed through the winding drum 31 housed inside the winding unit 30, the right end of the rotary shaft 40 is directly connected to the lock unit 50 fixed to the right end of the curtain rail 20, and the rail cap 60 is attached. It is fitted and fixed to the left end of the curtain rail 20.

Further, for example, the upper edge portion of the curtain A formed in a predetermined size with a cloth made of fiber or a resin sheet having a predetermined light-shielding rate is attached to the curtain rail 20 via a surface fastener (not shown). A lifting cord 3 which is detachably fixed to the entire length on the front side and wound around the winding drum 31.
The lower end of the curtain 1b is fixed to the lower end side edge of the curtain A via an annular insertion portion (not shown) formed or attached at a predetermined interval in the vertical direction on the back surface side of the curtain A.

In addition, a weight member (not shown) having a weight necessary for urging and pulling the curtain A in the pull-down direction is provided at a lower edge portion of the curtain A or a lifting cord 3 which will be described later.
It is attached to the lower end of 1b (or filaments such as cords and wires).

As a fixing means instead of the surface fastener, for example, a fixing means such as a magnet, a double-sided adhesive tape, a snap, an adhesive or the like can be used. In addition, a curtain having a light blocking rate substantially equal to or less than that of the above-mentioned curtain A can be hung on the rear surface side of the curtain rail 20.

The winding unit 30 described above is shown in FIGS.
As shown in FIG. 4, the unit main body 32 is inserted almost entirely into the curtain rail 20, and the lower surface side of the unit main body 32 is engaged with the rails 20a formed between the rails 20a formed along the entire lower surface side of the curtain rail 20. Mate or fit. and,
An opening 34, through which an elevating string 31b, which will be described later, can be drawn out and wound up is formed in the central portion of the lower surface side of the unit body 32 so as to face the winding surface of the winding drum 31, and the curtain rail 20 of the curtain rail 20. The width is narrower than the distance between the rails 20a, 20a, and is opened to a length substantially equal to the winding surface of the winding drum 31.

In addition, the insertion window 35, into which the lifting cord 31b can be inserted and removed, is provided with the locking groove 3 of the winding drum 31.
1c is formed on the lower surface side of the unit main body 32, and the lifting cord 3 is provided between the opening 34 and the insertion window 35.
1b is axially connected by an insertion groove 36 that allows insertion and removal of 1b.

In the take-up drum 31, the one end side shaft portion (small diameter side) of the drum body 31a formed in a substantially cylindrical shape is fitted into the hole portion 37a of the support portion 37 formed on the one end side upper surface portion of the unit body 32. The other end side shaft portion (large diameter side) is inserted into the recess 38a of the support portion 38 formed on the other end side upper surface portion of the unit main body 32 to rotatably bear the bearing.

Further, the opposing edges of the support pieces 38b formed on both open side edges of the recess 38a are formed in a tapered shape or a curved shape which gradually becomes narrower from the upper end side to the lower end side, and are supported. The upper end side opposing edge of the piece 38b is spaced wider than the large diameter end of the drum body 31a, and the lower end opposing edge is closer to the larger diameter end of the drum body 31a. is doing. That is, the support pieces 38b, 38b
When the end portion (larger diameter side) of the drum body 31a is fitted into the recess 38a, the end portion of the drum body 31a is pushed and spread to an allowable clearance, and the supporting pieces 38b, 38b are restored to their original state. The end portion of the drum body 31a is rotatably held by the restoring force.

A locking groove 31c for locking the upper end of the lifting string 31b is formed at the large-diameter side end of the drum body 31a so as to face the insertion window 35 and the insertion groove 36.
It is formed continuously from the large-diameter side end surface to the winding surface, and the opposite edge of the locking groove 31c is gradually formed from the front end to the rear end with respect to the inserting direction of the lifting string 31b. It is formed in a tapered shape or a curved surface shape with a narrow width.

Moreover, the upper and lower ends of the lifting string 31b are easy to insert and have a substantially triangular projection 31d having a shape that is difficult to pull out.
Is formed at the substantially central facing edge of the locking groove 31c, and
The tip of the protrusion 31d on the opposite side is close to the interval at which the upper end of the lifting string 31b is prevented from coming off, and becomes gradually narrower from the front end side toward the rear end side in the inserting direction of the lifting string 31b. It is formed in a shape or a curved shape.

The lifting cord 31b is attached to the drum body 31a.
A substantially disc-shaped guide plate 31e which is regulated on the winding surface of
The drum main body 31a is formed at a predetermined interval with respect to both end portions of the drum main body 31a, and has a substantially hexagonal cross section (or quadrangular cross section, pentagonal cross section)
The rotary shaft 40 formed in (1) is inserted into the center of rotation of the winding drum 31 so that power can be transmitted.

On the other hand, as shown in FIGS. 4 and 5, the groove 32c in which the rail 20a of the curtain rail 20 is locked is
Locking pieces 32d and 32e, which are formed on both sides of the rear end side of the unit body 32 and are substantially L-shaped when viewed from the side, are provided on the rails 20a and 2
The unit body 32 is formed so as to project on the lower surface of the front end side of the unit main body 32 at an interval that allows insertion between 0a.

In addition, the rails 20a of the curtain rail 20,
The fixing member 33 (retaining member) that is locked to the locking pieces 32d and 32e projecting downward between the rails 20a and 20a is wider than the rails 20a and 20a.
a It is formed in a shape and dimension that abuts against the lower surface,
The insertion window 35 and the insertion groove 36 are formed in a size and shape that are closed as viewed from below.

Guide grooves 33a into which the locking pieces 32d and 32e are slidably inserted are formed on both sides of the upper surface side of the fixing member 33 in parallel with a specific operation direction, and are substantially upside down when viewed from the side. A trapezoidal operation portion 33d is formed in the central portion on the lower surface side of the fixing member 33, and the fixing member 33 is locked by the locking pieces 32d and 32e and the guide groove 33a. It is operably provided in a lock fixing direction in which the groove 36 is closed and in a lock releasing direction in which the insertion window 35 and the insertion groove 36 are opened. An arrow engraved or printed on the operation unit 33d indicates a specific operation direction to be locked and fixed.

Further, a notch 33b in which the larger locking piece 32d is allowed to be inserted / removed is formed on one groove 33a side, and a notch 33c in which the smaller locking piece 32e is allowed to be inserted / removed is formed on the other side. The fixing member 3 is formed on the groove portion 33a side.
Assembly of No. 3 is regulated in a direction substantially coincident with a specific operation direction (arrow direction).

In addition, the guide groove 33a and the locking pieces 32d, 3
The concave portion 32f and the convex portion 33e, which are locked when the fixing member 33 is moved to the lock fixing position, are formed in a portion facing 2e, so that a sound or a touch generated when the fixing members 33 are locked with each other It can be confirmed that the fixing member 33 is stopped at the lock fixing position.

In addition, the taper portion 33f gradually increasing from the front end side (lock release side) of the fixing member 33 toward the rear end side (lock fixing side) is provided with a guide groove in which the locking pieces 32d and 32e are locked. The fixing member 33 is formed along the edge portion of 33a.
Slides in the locking direction (arrow direction) to lock the locking pieces 32d and 32e to the higher side (lock-fixing side) of the taper portion 33f, so that the rail 20 of the curtain rail 20 increases.
a and 20a, the unit main body 32 and the fixing member 33
It is set so that and are strongly pressed.

A protrusion 33g having a smooth curved surface
Is formed on the upper surface of the rear end side of the fixing member 33 (the side corresponding to the higher side of the taper portion 33f) so as to face the rail 20a of the curtain rail 20, and the pressing force is set to be large. There is. In addition, the taper portion 33f is attached to the fixing member 3
It may be formed on the 3 side or the locking pieces 32d, 32e side.

Further, the rails 20a of the curtain rail 20,
A non-slip member (not shown) having a large contact resistance, such as synthetic rubber or soft resin, may be attached to the pressing surfaces of the unit main body 32 and the fixing member 33 facing the 20a, and the pressing force and the contact resistance are It is possible to prevent the mounting position from being displaced by the synergistic effect.

The illustrated embodiment is configured as described above, and the method of mounting the winding unit 30 constituting the curtain opening / closing device 10 will be described below.

First, as shown in FIG. 3, the winding drum 3
One end side of 1 is a support portion 37 formed on the unit main body 32.
After inserting the winding unit 30 into the hole 37a of the curtain rail 20 and fitting the other end into the recess 38a of the support portion 38 formed in the unit main body 32, the winding unit 30 is attached to the curtain rail 20. Rotating shaft 4
0 is inserted through the center of the winding drum 31. Further, the winding unit 30 in which the rotary shaft 40 is inserted in advance may be housed inside the curtain rail 20.

Next, as shown in FIGS. 4 and 5, for example, the upper end (one end) of the lifting cord 31b having a knot formed or a retaining member attached is connected between the rails 20a, 20a of the curtain rail 20. It is inserted from below into the insertion window 35 of the unit main body 32 exposed to the outside, and is inserted into the locking groove 31c of the winding drum 31 in the axial direction, and between the projections 31d and 31d of the locking groove 31c. Forcibly insert it,
Prevent it from coming off.

Next, as shown in FIGS. 6 and 7, the curtain rail 2 is inserted into the guide grooves 33a, 33a of the fixing member 33.
After the locking pieces 32d and 32e of the winding unit 30 projecting below the space between the rails 20a and 20a of No. 0 are locked and attached, the fixing member 33 is slid in the locking direction (arrow direction), The locking pieces 32d and 32e are attached to the taper portion 33f.
Of the unit body 32 and the fixing member 33 are pressed and fixed to the rails 20a, 20a of the curtain rail 20, and the concave portion 32f and the convex portion 33e are locked to each other to lock and fix the fixing member 33. Regulate in position.

At the same time, the insertion window 35 and the insertion groove 36 of the unit body 32 are closed by the fixing member 33, and the lifting cord 3
The upper end of 1b moves to the insertion window 35 side, and the locking groove 31c
The lifting string 31b is restricted on the winding surface of the winding drum 31 while being prevented from falling off.

Next, the rotary shaft 40 is rotated in the winding direction, and the lifting string 31b having a length required for pulling up and opening the curtain A is wound around the winding surface of the winding drum 31 and is moved up and down. The lower end (other end) of the string 31b is fixed to the lower end side edge portion of the curtain A. Further, the winding drum 31 on which the lifting string 31b is wound may be fitted into the unit main body 32.

On the other hand, as shown in FIG. 4, when the fixing member 33 is slid in the unlocking direction, the unit body 3
Since the insertion window 35 and the insertion groove 36 of No. 1 are opened and exposed between the rails 20a, 20a of the curtain rail 20, the lifting unit 31b is attached without separating or removing the winding unit 30 from the curtain rail 20. You can work to replace or replace.

When the curtain A is pulled up and opened in the vertical direction, as shown in FIG. 1, one end of the loop-shaped operation string 51 hung under the lock unit 50 is pulled down to rotate the rotary shaft 40. While rotating forward and backward, the lifting string 31b is wound or unwound by the winding drum 31 of the winding unit 30, and the curtain A is opened and closed vertically (pulled open and closed). In addition, the rotation of the rotary shaft 40 is locked or unlocked by the lock unit 50, and the curtain A
Is fixed up and down to the desired height.

As described above, the upper end of the lifting string 31b is inserted from below into the insertion window 35 of the unit main body 32 exposed between the rails 20a of the curtain rail 20, and the locking groove 31c of the winding drum 31. After being inserted into the locking groove 31c between the protrusions 31d and 31d, the fixing member 33 is inserted into the insertion window 35 of the unit main body 32.
Also, because the insertion groove 36 is moved to the lock fixing side where it is closed to prevent it from coming off, the lifting cord 31b is restricted on the winding surface of the winding drum 31, and the upper end of the lifting cord 31b locks the winding drum 31. It is possible to surely prevent the groove 31c from falling off.

Moreover, the labor and work of separating the winding drum 31 from the winding unit 30 and removing the winding unit 30 from the curtain rail 20 can be saved.
The work of fixing or separating the lifting cord 31b can be performed easily and easily, and the work time required for fixing or separating the lifting cord 31b can be shortened to improve workability and efficiency.

Further, the engaging groove 31c and the protrusions 31d, 31
d is formed in a shape in which the upper end of the lifting string 31b is guided in the insertion direction and resistance is imparted in the direction in which the withdrawal is blocked, so that the locking groove 31c and the protrusions 31d, 3 are formed.
By the synergistic action of 1d and the fixing member 33, the lifting cord 31
It is possible to positively prevent b from being pulled out or falling out.

In the correspondence between the structure of the present invention and the above-mentioned embodiment, the curtain of the present invention corresponds to the curtain A, the screen, the blind, the curtain of the embodiment, and so on.
The curtain opening / closing device corresponds to the manual curtain opening / closing device 10 or the electric curtain opening / closing device, the retaining member corresponds to the fixing member 33, the cover, the lever, the arm, etc., and the rail is
Although the present invention is applicable to the curtain rail 20 and the box type rail, the present invention is not limited to the configuration of the above-described embodiment.

In the above-mentioned embodiment, the fixing member 33 is used for fixing the winding unit 30 housed inside the curtain rail 20 and for closing the insertion window 35 and the insertion groove 36 of the unit main body 31. However, it can be used, for example, to close the insertion window 35 and the insertion groove 36 of the unit main body 31 which constitutes the winding unit 30 attached to the lower surface of the curtain rail 20.

Further, the winding unit 30 can be applied to, for example, an electric type curtain opening / closing device for pulling up and opening the curtain vertically and a manual or electric type curtain opening / closing device for opening / closing the curtain laterally. It can be used and is not limited to the curtain opening / closing device 10 of the embodiment.

[Brief description of drawings]

FIG. 1 is a front view showing an assembled state of a curtain opening / closing device.

FIG. 2 is a vertical cross-sectional side view showing a housed state of a winding unit.

FIG. 3 is a bottom side perspective view showing a separated state of the winding unit.

FIG. 4 is a vertical cross-sectional front view showing a state in which the lifting cord is inserted.

FIG. 5 is a bottom view showing a state in which the lifting cord is inserted.

FIG. 6 is a vertical cross-sectional front view showing a state in which the lifting cord is retained.

FIG. 7 is a bottom view showing a state in which the lifting string is retained.

[Explanation of symbols]

A ... Curtain 10 ... Curtain opening / closing device 20 ... Curtain rail 20a ... railway 30 ... Winding unit 31 ... Winding drum 31b ... lifting string 31c ... Locking groove 31d ... protrusion 32 ... Unit body 33 ... Fixing member (retaining member) 34 ... Opening 35 ... Insertion window 36 ... Insertion groove 40 ... Rotary axis

Claims (4)

[Claims] 1. A curtain opening / closing device for feeding or winding up a lifting / lowering cord by forward / reverse rotation of a winding drum held by a winding unit and pulling up / down a curtain connected to the lifting / lowering cord in a vertical direction. In the winding unit of, the opening for hanging the lifting cord is formed on the lower surface side of the winding unit,
An insertion window through which the lifting cord is inserted is continuously formed in the opening side portion, and a locking groove that locks one end of the lifting cord is provided from one end side of the winding drum facing the insertion window. A retaining member, which is formed continuously on the winding surface and closes the insertion window, is attached to the lower surface side of the winding unit so as to face the insertion window, and the retaining member closes the insertion window. A winding unit for a curtain opening / closing device, which is movably provided between a closed position and an open position where the insertion window is opened. 2. A curtain body which holds a winding drum by a winding unit housed inside a rail, and pays out or winds the lifting cord by the forward and reverse rotations of the winding drum, and is connected to the lifting cord. Is a winding unit for a curtain opening / closing device that pulls up and opens in the vertical direction, the opening for hanging the lifting cord is formed on the lower surface side of the winding unit by exposing it between the rails formed on the lower surface of the rail. An insertion window through which the lifting cord is inserted is continuously formed in the opening side portion, and a locking groove for locking one end of the lifting cord is provided with one end side of the winding drum facing the insertion window. A retaining member that is formed continuously from the winding surface to the insertion surface to close the insertion window, is attached to the lower surface side of the winding unit that is exposed between the rails of the rail facing the insertion window, and A member at a closed position where the insertion window is closed and Winding unit movably provided the curtain opening and closing device in the open position where the passing window is opened. 3. An insertion groove for inserting the lifting cord is formed between the opening and the insertion window, and when the retaining member is moved to the closing position, the insertion window and the insertion groove are closed. The winding unit for a curtain opening / closing device according to claim 1, which is formed in a size. 4. A protrusion that guides one end of the lifting cord in the inserting direction and provides resistance in the direction in which the lifting cord is prevented from being pulled out is formed at an opposite edge of the locking groove. The winding unit of the curtain opening / closing device according to claim 1.