JPH053671Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an improvement of a blind, and particularly to a mechanism for lifting and lowering the blind.

[Conventional technology]

Conventionally, the structure of blinds consists of a large number of slats (hereinafter referred to as slat groups) spaced apart in the vertical direction.
It is configured to have an operating mechanism for rotating the slat group for lighting and blocking, and an operating mechanism for opening and closing the slat group to fold it up or lower it, and usually these two operating mechanisms are used. This is done by pulling a cord or transmitting rotation by a gear mechanism.

These two operating mechanisms are usually provided independently.

This is because these operating mechanisms are operationally independent of each other.

However, providing each of these mechanisms separately not only increases the number of parts but also poses difficulties, especially in terms of the number of man-hours required to assemble the blinds, and there is a need for ways to conveniently integrate these mechanisms. . Moreover, such integration is also required in order to enhance the design effect of the blind, which has the character as an interior device in one aspect.

This type of integrated blind is
For example, an operating mechanism for rotating a group of slats is formed by a hollow pipe, a worm connected to the worm, and a worm gear, and a lifting cord for opening and closing a blind is passed through the hollow pipe. has been proposed.

However, this type of blind has a complicated structure, requires high component precision, and has another problem in that it is difficult to reduce the number of assembly steps.

[Problems to be solved by the idea]

This invention was made from this perspective,
The purpose is to provide a code lead-out box for a blind head box which has a simple structure and can form a code lead-out part simply by assembling and fixing pre-assembled single parts into the head box. .

Another object of the present invention is to provide a code deriving box that can suitably realize a blind with excellent design by using such single assembled parts.

[Means to solve problems]

To achieve the above-mentioned purpose, the present invention adopts a method in which a rotating pulley engaged with a rotating shaft is pulled by a rotating operating cord as the operating mechanism for rotating the slat group. We have developed a code derivation box in which the operating mechanism for opening and closing the blind and the stopper device, which is the operating mechanism for opening and closing the blind, can be integrated into a pre-assembled component.

In other words, the code derivation box of the present invention is
The operating mechanism for rotating the slats is composed of a rotating pulley and a guide means for leading out the rotating operating cord, the middle part of which is wound around the rotating pulley. It consists of a set of a turning guide means and a stopper device, and these sets are provided separately on both sides of a single integrated box with a partition wall in between, and the cords of the operating mechanisms on both sides are connected to the head box. It has a unique structure in which it commonly hangs downward from the lower surface of the part that protrudes toward the front side (indoor side when installed).

According to the code derivation box with such a configuration, it is possible to assemble each code derivation part of the two operating mechanisms by simply assembling a single box to the head box, resulting in extremely efficient work. This is because, not only can the blinds be realized, but also the blinds can be easily formed with excellent design by deriving each code from a substantially common position.

〔Example〕

The present invention will be described below based on embodiments shown in the drawings.

FIG. 1 is a diagram showing an example of a blind to which the code derivation box of the present invention is applied. In the figure, 1 is a head box, 2 is a rotating shaft in the head box, 3 is a rotating drum that rotates integrally with the rotating shaft, 4 is a rotating drum support, 5 is a ladder cord (3 cords) wrapped around the rotating drum 3 and hanging downward.
A large number of slats 6 are suspended as a group of slats spaced vertically as shown in the figure. The slat group is rotated within a certain range of degrees by rotation about the rotating shaft 2. 7 is the lift code,
In this example, they are stretched between the lower plate 8 from inside the head box 1 along the three ladder cords 5, respectively, and
Furthermore, the end inside the head box is led out from a cord lead-out box 9 fixed near one end of the head box (the right end in FIG. It is said that it can be towed by being tightly attached. That is, the lower plate 8 is lifted by pulling the lifting cord, and conversely, by loosening the pulling, the lower plate 8 is hung, and the blind is opened and closed by these.

Note that 12, 12 are externally mounted on the guide rod 10,
Both ends of a rotary operation cord, which will be described later, are rotary operation knobs connected to each other, and 13 is a lifting assist cord.

2 to 4 are enlarged views of the cord lead-out portion of the head box. In this example, a pre-assembled code lead-out box 9 is fitted and fixed into a predetermined opening of the head box 1. After that, it can be assembled by inserting the cord.

As shown in FIG. 5, the code derivation box 9 of this example is assembled by fitting a pair of first stopper cases 21 and second stopper cases 22 together with a partition plate (partition) 20 inside. It is provided in a male and female mating type. That is, the first stopper case 21 is provided with an opening 21b into which the second stopper case 22 is fitted, and the second stopper case 21 is provided with an opening 21b into which the second stopper case 22 is fitted.
The stopper case 22 is fitted and integrated.

As shown in FIGS. 2 to 4, a part of these integrated code deriving boxes is provided so as to slightly overhang the front side (indoor side) of the head box 1, and both sides of this overhang part The surface has a vertical groove 21 into which the pin 14a of the universal joint 14 for suspending the guide rod 10 is fitted.
a, 22a are formed, and the lower surface of the overhanging portion is opened for leading out the cord.

FIG. 6 is a diagram for explaining the suspension relationship between the cord lead-out box 9, the universal joint 14, and the guide rod 10, which are fitted and fixed to the head box 1. As can be seen from this figure, the guide rod 10 can be freely tilted in a horizontal plane with respect to the code derivation box 9.

Returning to FIG. 5, the mechanism provided on both sides of the partition plate 20 of the code deriving box will be described. Inside the first stopper case 21, inside the protruding part, there is a rotary roller 23, fixedly mounted. The pin 24 and guide roller 25 are incorporated,
As shown in FIG. 3, together with a knurled slope 21b formed on a part of the case, a stopper device is constituted. The principle of this stopper device is the same as the known one, and as the lifting cord 7 is pulled or loosened, the lower roller 23 cooperates with the pin 24 to prevent or release the cord from sliding.

26, 26, 26 are the first stopper case 21
A turning guide roller (turning guide means) is provided on the upper surface so as to be rotatable around a vertical axis, and guides the lifting cord 7 extending in the longitudinal direction inside the head box 1 to the outside through a stopper device. The direction of the route can be changed to suit the purpose. Note that these turning guide rollers 26 in this example are provided separately for one of the three lifting cords 7, and their axes are aligned as shown in FIG. 2 to prevent interference such as mutual entanglement. The core position is placed diagonally to the head box.

Note that the first stopper case 21 is formed with an insertion opening 21c for the rotating shaft 2.

The second stopper case 22 also includes a rotary pulley 27 that is engaged with the rotary shaft 2 so as to rotate integrally therewith.
The middle part of the cord accommodates a guide roller 28 for guiding the rotary operation cord wound around the rotary pulley 27 to the outside (see FIG. 4). Both ends are
The guide rod 10 is connected to a pair of rotation operation knobs 12, 12, respectively, so that movement of the knobs rotates the rotation pulley 27 and therefore the rotation shaft 2, thereby rotating the slat group. ing.

Reference numeral 29 denotes a lid which is used to cover the upper part of the cord guide box and prevents the lift cord 7 from coming off the turning guide roller 26.

According to the above configuration, the two operating mechanisms for rotating the group of slats of the blind and for opening and closing the blind are both configured as cord-operated types, and each of these operating mechanisms The cords are commonly led out from the code lead-out box to the outside of the head box, and are also inserted into the guide rod, resulting in an extremely well-organized appearance with an excellent design as shown in Figure 1. Moreover, the structure of the code lead-out part can be constructed by simply fitting and fixing a pre-assembled code lead-out box into the head box, so the workability is extremely simple. There is an effect that can be obtained.

Furthermore, in this example, a suspension part (vertical groove for suspension of the universal joint) for suspending the guide rod is formed on the overhanging part from the head box that conveniently organizes the cord lead-out positions.
Since there is no need to add any processing to the headbox, there is an advantage in that the processing of the headbox is convenient.

[Effect of idea]

According to the present invention, the code lead-out part can be formed by simply assembling the box using the code lead-out box that has been assembled as a single unit in advance, so the workability of blind assembly is greatly simplified. Moreover, since each operating mechanism is a combination of elements suitable for miniaturization, the area of the parts to be assembled that appear on the surface of the head box can be sufficiently limited, and the lead-out position of each code is standardized. Another advantage is that it is possible to obtain an extremely excellent appearance in terms of design by combining the structure with a guide rod, and its practical effects are extremely large.

[Brief explanation of the drawing]

Fig. 1 is a front view of a blind to which the present invention is applied, Fig. 2 is a partial plan view of the headbox including the cord lead-out section, Fig. 3 is a vertical cross-sectional view taken along line A-A in Fig. 2, and Fig. 4 is Fig. 2 is a longitudinal sectional view taken along the line B-B, Fig. 5 is an exploded perspective view of the code derivation box, and Fig. 6 is a exploded perspective view of the code derivation box.
The figure is an exploded perspective view for explaining the relationship between the code derivation box and the guide rod. 1... Head box, 2... Rotating axis, 3...
Rotating drum, 4...Rotating drum support, 5...Ladder cord, 6...Slat, 7...Elevating cord,
8...Lower plate, 9...Code derivation box, 10
...Guide rod, 11...End block, 12...
...Rotary operation knob, 13...Lifting assistance cord, 1
4... Universal joint, 15... Rotation operation cord, 20... Partition plate, 21... First stopper case, 22... Second stopper case, 23...
... Rotor roller, 24 ... Pin, 25 ... Roller, 26 ... Turning guide roller, 27 ... Rotating pulley, 28 ... Guide roller, 29 ... Lid.

Claims (1)

[Claims for Utility Model Registration] (1) A cord deriving box attached and fixed to the elevating cord deriving part of the blind head box is composed of a first stopper case and a second stopper case, A rotary pulley is engaged to rotate integrally with a rotary shaft for rotating the slat group extending in the longitudinal direction, and a rotary operating cord whose middle portion is wound around the rotary pulley is guided to the outside of the head box. A turning guide means is provided in the second stopper case for guiding a lifting cord for lifting and lowering the blind, which is inserted through the inside of the headbox in its longitudinal direction, out of the headbox; A stopper device of a type that is provided in the middle of the lead-out path of the lifting cord and prevents or releases the sliding of the lifting cord by movement of a lower roller is provided in the first stopper case, and the first stopper The case and the second stopper case are integrally formed with partitions arranged side by side on both sides of the head box in the longitudinal direction with a partition wall in between, and furthermore, an opening for leading out the lifting cord and the rotation operation cord to the outside is connected to the head box. A lifting and lowering rotating mechanism for a blind, characterized in that it is provided on the lower surface of an overhang protruding toward the front side of the hand. (2) The blind according to claim (1) of the utility model registration, characterized in that the turning guide means for the lifting cords is a guide roller independently provided for each of the plurality of lifting cords. Lifting and rotating mechanism. (3) The elevating and lowering rotation mechanism for a blind as set forth in claim (2) of the utility model registration, characterized in that the guide roller is provided to be biased upwardly or downwardly with respect to the rotating shaft in the headbox. (4) Registration of a utility model characterized in that the set of the rotating pulley and the rotating operation cord guide means is located closer to the end of the head box than the set of the lifting cord turning guide means and stopper device. A blind lifting/lowering rotation mechanism according to any one of claims (1) to (3). (5) Utility model registration claims (1) to (4) characterized in that the projecting portion also serves as a hanging portion for a guide tube for a cord led out to the outside.
A mechanism for lifting and lowering the blind as set forth in any of the paragraphs.