JP2570732Y2 - Horizontal blinds - Google Patents

Description

[Detailed description of the invention]

[0001]

The present invention relates to a horizontal blind.
More specifically, the present invention relates to a horizontal blind capable of giving a wide degree of freedom in designing a blind in which interior features have recently become important.

[0002]

2. Description of the Related Art Conventionally, horizontal blinds provided in various embodiments form a group of a large number of slats vertically spaced apart from each other, which are spread out over the entire surface (or part) of a window. It is required to have two functions, a function of folding the slat group that can be operated in the state, and a function of adjusting the light-shielding state that can adjust and control the light-shielding state of the slat group in the expanded state.

[0003] In the existing horizontal blinds,
In order to satisfy the former function, the upper end side of the lifting cord suspended from the head box to the bottom rail at the lower end of the slat group is pulled out from the vicinity of the end of the head box, and the slat group is raised (elevated). A mechanism that allows operation (hereinafter referred to as “elevating cord operating mechanism”) is generally provided, and in order to satisfy the latter function, a large number of slats are suspended in the head box so that they are vertically spaced. A mechanism that tilts the slat group by rotating the tilt rotation shaft by operating the ladder-shaped ladder cord (the front and rear strings forming the vertical portion) suspended from the tilt rotation shaft from outside the head box. (Hereinafter referred to as “slat group tilt operation mechanism”).

In the existing horizontal blinds, these mechanisms are provided separately because their functions are different, and the operation cord of the operation mechanism of the lifting / lowering cord and the tilt operation rod of the tilt operation mechanism of the slat group are each provided with a head. It is pulled out separately from near the end of the box. However, when emphasis is placed on the interior, it is desirable that the number of external operation members be as small as possible.

In order to meet such a demand, it has been proposed that the operating mechanism of the lifting cord and the tilt operating mechanism of the slat group are housed in a common member in appearance (Japanese Patent Publication No. 58-27399). etc). In this proposal,
The lifting cord is pulled out through a hollow tilt operation rod for tilting the slat group, and a lifting stop device for restraining / releasing the movement of the lifting cord is incorporated in the tilt operation rod. The operation mechanism is unified in appearance

[0006]

However, the horizontal blind proposed above does not only allow the lifting / lowering cord to pass through the tilt operation rod of the tilt operation mechanism but also incorporates a stopping device for the lifting / lowering code. Although the operation rod becomes thicker and hiding the elevating cord improves the interior, it has a drawback that the appearance of the rotary operation rod becomes unsightly.

In addition, the tilt rotation shaft connecting the upper ends of the ladder-shaped ladder cords is located at the center of the head box, and the tilt operation rod is connected to the tilt rotation shaft so as to transmit a rotational force. In addition, a plurality of lifting / lowering cords guided into the head box through the tilt operation rod must be extended by being turned around a narrow portion below the tilt rotation shaft.

The present invention has been made to solve the above-mentioned drawbacks of the conventional horizontal blind, and has an object of not only being excellent in operability but also blindfolding the lifting cord with a rotary operation rod. Te improves the interior of, yet and coupling mechanism for torque transmission of the tilt operation rod and the tilt rotary shaft, without being constrained to the operation mechanism of the lift cord, or
Work to extend the raised / lowered cord inside the headbox is also easy
It is to provide a new horizontal blind which can be used in a vehicle.

[0009]

The horizontal blind of the present invention that achieves the above object is characterized by a head box, a group of slats composed of a number of slats supported by a ladder cord suspended from the head box, A tilting rotation shaft extending in a head box to which the upper end of the ladder cord is connected and capable of rotating so as to tilt the slat group, and extending downward from near the end of the head box and inside the head box. And a tilt operation rod connected to transmit the rotational force to the tilt rotation shaft through the gear train, and extended into the head box, and one end is extended from an appropriate position of the head box to the lower end of the slat group. The other end consists of a plurality of cords that are suspended and connected to the lower bottom rail, and the other end of which is extended from near the end of the head box to the outside. In horizontal blinds with a lifting cord for raising folding slat group, a worm gear with rotating shaft that rotates in conjunction with the tilting rod, the head
Place it in the box in the room,
Tilt the end so that it extends from inside the headbox to the room side
Te place, and lift cords is formed to have a hollow tubular portion through the interior, with the lifting cord is to be extended to the outside from the head box through said hollow tubular portion, the said worm gear Attached to the tilt rotation shaft
The gear train is linked via a small-diameter intermediate gear to
The lifting / lowering cord is passed through the hollow cylinder portion of the worm gear by a cord turning member formed and disposed above the tilt rotation shaft on the substantially axial extension of the gear hollow cylinder portion.
At the hollow cylindrical portion provided at the end.

[00l0] placing the axis of the axis of said worm gear hollow cylindrical portion the tilting rotation axis such that the twisted positional relationship, and from the head box to the lower end of the slat group
Rotation for tilting on the extension line above the hanging lifting cord
Positioning the shaft means that the gear is a worm gear,
Via the intermediate gear diameter in conjunction with the gear pivotally attached to the tilting rotary shaft can be configured in a Turkey.

The present invention particularly provides a lifting device for stopping a lifting cord in a head box, and an operating cord connected to the stopping device together with the lifting code for a hollow tilt operation rod so that the stopping device can be operated from the outside. It is more preferable to adopt a configuration in which the device is pulled out through the inside and connected to a knob assembled to, for example, a tilt operation rod, and the operation of the knob allows the lifting device to move and restrain the movement of the lifting cord by the stop device. Is achieved.

[0012]

According to the present invention, the upper portion of the upper headbox than the rotation axis tilt on generally axially extending warm gear hollow tubular portion, for guiding the lift cord <br/> hollow cylindrical portion of said worm gear , by the code turn member e.g. turning rolls disposed in this portion, it is possible to operate the lift cords without interfering with tilting rotation axis, without causing tangles plurality lift cord of each lift cord Smooth movement can be secured. Also, the lifting code is
It is located at the top of the
It will be easier.

[0013] Also, in the case of adopting a preferable configuration in which a device for stopping the lifting cord is provided in the head box, the operation cord of the stopping device and the lifting cord are also put together.
Even if the cord is pulled out through the tilt operation rod via the turning roll, the entanglement of these cords is reduced as described above, and the reliability of the operation is improved.

[0014]

BRIEF DESCRIPTION based on the drawings of FIGS. 1-4 of the present invention below. FIG. 4 is a view showing the overall appearance of a horizontal blind to which the present invention is applied. In this figure, reference numeral 1 denotes a head box, which is fixed, for example, along the upper edge of a window frame (not shown).

Reference numeral 2 denotes a group of slats suspended below the head box 1. In this embodiment, two ladder codes 3 and 3 suspend each slat at appropriate intervals in the vertical direction. . Reference numeral 4 denotes a bottom rail supported at the lower end of the ladder cord.

Reference numeral 5 denotes an elevating cord, one end of which is suspended from the head box 1 and connected to the bottom rail 4 at the lower end through a hole in each slat. The other end is a turning cord provided in the head box 1. The head box 1 is extended in the longitudinal direction of the head box 1 by a roller (not shown), and is pulled out from the vicinity of the end through the hollow of the tilt operation member 6 in this example. Numeral 7 is a crib attached to the other end of the lifting cord.

[00l7] The specific configuration of the applied reference example in horizontal blinds with the appearance of the reference example above, shown in Figure l and Figure 2 showing the cross-sectional image in the vicinity of the head box end, in these drawings, Reference numeral 8 denotes a head box 1 for tilting the ladder cord 3 by a known method to adjust the light blocking state of the slat group.
A tilt rotation shaft that is rotatably supported around the axis,
The head box extends in the longitudinal direction. Reference numeral 9 denotes a case fixed to the head box 1, and reference numeral 10 denotes a gear that is mounted on the tilt rotation shaft 8. The upper end of the ladder cord 3 is connected to the tilt rotation shaft 8.
Reference numeral 11 denotes a rotating shaft having a hollow cylindrical portion assembled to a lower portion of the case 9, and a bevel gear 12 is pivotally mounted on an end of the head box at an end thereof, and this is rotatably supported by a bracket. The internal gear of the intermediate gear 13 is linked to a gear 10 which is mounted on the tilt rotation shaft 8. By passing through the intermediate gear, the axes of the rotation shaft 11 and the tilt rotation shaft 8 are in a torsional positional relationship with each other.

The end of the rotary shaft 11 outside the head box is connected to a hollow cylindrical tilt operation rod 15 via a universal joint 14.

Reference numeral 16 denotes a turning roll rotatably supported by the case 9 on an extension of the axis of the rotary shaft 11, and a lifting cord 5 extending inside the head box.
Is rotated so as to pass through the hollow cylindrical portion of the bevel gear 12, the rotating shaft 11, and the tilt operation rod 15. In this example, the turning roll 16 is disposed on the upper part of the head box as far as possible from the universal joint 14 so as to reduce the entanglement of the lifting cord 5 before and after the turning roll 16. is that provided by each inclined relative to the axis of the extending設線and the bevel gear 12 of the headbox 1.

Although not shown in this example, a fixed roller and a movable knurl roller are arranged at predetermined positions in the head box 1 so as to sandwich the elevating cord 5, and the knurl roller is connected to the elevating cord. A position where the movement of the lifting cord 5 is freely restricted and a position where the movement of the lifting cord 5 is freely permitted, and a dislocation mechanism for forcibly displacing the knurl roller to the two positions. Alternatively, the operation cord 18 (not shown) of the transposition mechanism may be pulled out from the revolving roll 16 together with the lifting / lowering cord 5 through the tilt operation rod 15 to the outside. The knob 17 attached to the lower end of the tilt operation rod 15 in FIG. 1 can be used as a member for operating the operation cord of this transposition mechanism, and for example, is pulled down so as to be movable up and down with respect to the tilt operation rod 15. At times, it can be provided to release the movement constraint of the lifting cord.

According to the structure of this embodiment, the bevel gear 12
The elevating cord 5 is attached to the upper part of the head box above the tilt rotation shaft 8 on a substantially axial line extension of the bevel gear 12.
In addition, since the turning roll 16 for guiding to the hollow cylindrical portion of the tilt operation rod 15 is arranged, there is a space before and after the turning of the elevating cord, and the entanglement of the plurality of elevating cords 5 is reduced, so that each of the elevating cords is reduced. Smooth movement can be secured.

When a lifting / lowering cord stopping device is provided in the head box, the operation cord 18 of the stopping device is pulled out together with the lifting / lowering cord 5 through the turning roll 16 through the tilt operation rod 15 to the outside. In this case as well, the entanglement of these gouges is reduced, and the reliability of the operation is improved. In this case, the conventional problem that the tilt operation rod becomes thick is solved. This example shows the embodiment Figure 3, the case 9 ', instead of the bevel gear 12
Rotating shaft 11 'with worm gear 12' , intermediate gear 1
3 'configurations other that is different from the reference example is the same configuration as the said reference example, the same members are denoted by the same reference numerals
Was. Describing this, the rotating shaft 11 ' of this example is
The head box 1 is positioned so as to be biased toward the indoor side.
And the lower end of the head box 1
Is arranged so that it extends to
It has a hollow cylinder passing through the inside,
Extending from the inside of the headbox to the outside through the hollow cylinder
Worm gear on its outer periphery is provided in the axial direction rather long on so that
12 'is provided. And this worm gear 1
2 ' is linked with a small-diameter intermediate gear 13' as a drum.
Thus, the position of the tilt rotation shaft 8 is
It is located in the middle in the front-rear direction .

According to this embodiment having such a configuration , the reference
In addition to the effect of the example , the tilt operation rod in the head box
By adopting c Omugia 12 'in conjunction has the advantage that the width of the headbox l (the dimension in the longitudinal direction) can be reduced.

[0024]

According to the present invention, according to the invention], on top of the upper headbox than tilting rotary axis on the generally axially extending gear hollow cylindrical portion, the hollow of lift cords the rotation axis and the tilt operation rod with a worm gear A code turning member for guiding to the cylindrical portion, for example, a turning roll is arranged, and the ascending and descending cord can be incorporated and operated without interfering with the tilt rotation shaft, without causing a plurality of elevating cords to be entangled. This has the effect that the smooth movement of each lifting cord can be ensured.

Also, in the case of adopting a preferable configuration in which a device for stopping the lifting cord is provided in the head box, the operating cord of the stopping device and the lifting cord are also put together.
Even if the cord is pulled out through the tilt operation rod through the turning roll, the tangling of these cords is reduced as described above, and there is an effect that the reliability of the operation is improved.

[0026] In addition, the worm gear of the tilt control rod side in the head box, take a longer length of its, and in the small-diameter
Since the gear train can be formed via the intermediate gear, the effect that the width dimension ( dimension in the front-rear direction) of the head box can be reduced is also obtained.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a schematic configuration of a tilting mechanism according to a reference example of the present invention;

FIG. 2 is a sectional view taken along line AA of FIG. 1;

FIG. 3 is a cross-sectional view showing a schematic configuration of a tilt mechanism according to the embodiment of the present invention;

FIG. 4 is a perspective view showing a schematic configuration of a horizontal blind to which the present invention is applied.

[Explanation of symbols]

1: Head box 2: Slat group 3: Ladder cord 4: Bottom rail 5: Elevating cord 8: Tilt rotary shaft 9: Case 10: Tilt rotary shaft mounting gear 11 : Rotating shaft 11 ': Rotating shaft with worm gear 12: bevel gear 12 ': worm 13, l3': intermediate gearing 14: universal joint 6,15: tilting rod

Claims (1)

(57) [Scope of request for utility model registration] 1. A head box, a slat group including a plurality of slats supported by a ladder cord suspended from the head box, and an upper end of the ladder cord connected to tilt the slat group. A rotating shaft for tilt extending in a rotatable head box, and extending downward from near the end of the head box and transmitting torque to the rotating shaft for tilt via a gear train in the head box. The connected tilt operation rod, extending into the head box, one end is suspended from an appropriate position of the head box to the lower end of the slat group and connected to the lower bottom rail, and the other end is the head box. Slat group consisting of a plurality of cords extending outward from the end of the slat group With worm gear that rotates in conjunction with the tilt operation rod
Position the rotating shaft so that it is offset toward the room inside the headbox.
And the lower end extends from the inside of the headbox to the indoor side.
Arranged inclined to leave, and formed to have a hollow tubular portion lift cord passes through the interior, the lift cord is extended to the outside from the headbox through the <br/> hollow cylindrical portion So that the worm gear and the tilt
Gear and the gear mounted on the shaft are linked via a small-diameter intermediate gear.
The above-mentioned gear train is formed , and the elevating cord is passed through the hollow cylindrical portion of the worm gear by a cord turning member disposed above the tilt rotary shaft on the substantially axial extension of the gear hollow cylindrical portion.
A horizontal blind characterized by being guided to a hollow cylindrical portion provided on a tilt operation rod.