JPH0511826Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an improvement of a corner joint of a Roman shade that is hung three-dimensionally in a bay window or the like.

[Prior art] When hanging a hand-rolled curtain called a Roman shade along a bay window on two or more sides, the curtain rails along each side are connected by corner joints, but conventional corner joints are one joint, and the eighth As shown, the window corner bisector X passes through the pin 12 of the joint. The joint consists of left and right joint cases 11a and 11b rotatably connected via a pin 12 at the center, a vertical guide roll 14 fitted coaxially to the pin, and two horizontal guides attached to each joint case. It consists of rolls 16a and 16b. Since two lifting cords 30 hang down from each joint at each corner of the window, the number of lifting cords is much larger than that of a normal window. For example, as shown in Figure 9, in the case of a bay window with a wide front and narrow sides, six lifting cords 30, three on the front and two on each side, are passed through, so the width is abnormally large compared to a normal window. I needed a wide curtain rail. Furthermore, if the number of lifting cords is large, assembly becomes complicated and lifting/lowering operations tend to be uneven.

Also, since it is very difficult to measure bay windows, there are many measurement errors, and these errors must be absorbed by the amount of insertion of the curtain rail into the joint, but since the joint has only one joint and its position is fixed. , the margin of error was relatively small.

Furthermore, if vertical tape for lifting cords is attached to the curtain, tapes close to each other on both sides of the corner will be pulled up by separate lifting cords, so they will compete with each other and the curtain between the tapes will fold in a row. There was a problem that it was unsightly.

[Problems to be solved by the invention] This invention was made to solve the above-mentioned problems, and its purpose is to fold the curtains neatly by simply providing one lift cord for each corner. The purpose of the present invention is to provide a Roman shade corner joint for a bay window that can be raised.

[Means for Solving the Problem] In order to achieve the above object, the feature of the present invention is to make an elevator cord hole in the center of the bottom of a box-shaped center case with openings on the left and right sides, and insert two cords into the center case. A horizontal guide roll is installed, and the left and right joint cases are connected via vertical pins on the left and right sides of the center case.A vertical guide roll is fitted to each vertical pin, and the left and right joint cases are connected to the left and right curtain rails respectively. The reason is that it fits into a two-joint joint.

[Function] The curtain rails on both sides of the corner of the bay window are connected by a corner joint. The multiple lifting cords passing through one curtain rail bend along the vertical guide rolls of one joint case, and one of the lifting cords descends along one horizontal guide roll to lift and lower the center case. It hangs down from the cord hole. The other lifting cord passes over the top of the two horizontal guide rolls and enters the other curtain rail along the other vertical guide roll. The hanging lifting cord passes through a ring attached to the curtain, and its lower end is fixed to the ring or the curtain. In this way, since only one lifting cord for folding the curtain is provided at each corner, the number of lifting cords required for a bay window is not significantly greater than in the case of a flat window. Furthermore, even if there is a measurement error in the bay window, the position of the joint can be adjusted with two joints, so the tolerance for the dimensional error is relatively large. Furthermore, since the corner curtains are raised by hand using a single lifting cord, the curtains are always folded up neatly without becoming messy.

[Example] The corner joint of the present invention will be described based on an example shown in the drawings. As shown in Figures 1 to 3, left and right joint cases 11a and 11b are inserted into curtain rails 10a and 10b placed on the left and right sides of the corner of the window, and screws 13a and 13b are inserted into the curtain rails 10a and 10b, respectively.
Fixed via. Each joint case 11
The two prongs 15a and 15b on the inside of the curtain rails 10a and 10b protrude from the curtain rails 10a and 10b, and the two prongs rotate to the two prongs 22a and 22b on both sides of the center case 20 via vertical pins 12a and 12b. Can be installed freely. Vertical guide rolls 14a, 14b are rotatably fitted to the vertical pins 12a, 12b. The center case 20 is box-shaped with openings on both left and right sides, and there is a lifting cord hole 2 in the center of the bottom.
3 can be opened. Joint case fork 15
a, 15b and the forked part 22a of the center case,
22b are closer to the front side than the center of the joint case 20, and vertical guide rolls 14a, 14b
The outer circumferential surface of the center case 20 is in contact with the front-rear vertical bisector of the center case 20, or is located slightly forward of the front-rear vertical bisector. Two horizontal pins 17a and 17b are inserted symmetrically into the lower half of the center case 20, and horizontal guide rolls 16a and 16b are rotatably fitted onto the pins. Two horizontal guide rolls 16a, 16
The envelope surface b is in contact with the horizontal bisector of the center case 20 or is slightly lower than that.

In the joint of the present invention, the left and right joint cases 11a, 11b are connected to the vertical pins 12a, 1, respectively.
Since it has a two-joint structure that rotates around 2b, the fixed position to the corner of the window is the bisector of the corner of the window
can be freely changed between the position shown in FIG. 5 where it passes through one vertical pin 12a and the position shown in FIG. 6 where it passes through the other vertical pin 12b. Therefore, even if the length of the curtain rail does not match due to an error in the measurement of the bay window, the error can be absorbed by changing the position of the joint.

As shown in FIGS. 1 and 2, a plurality of lifting cords 30 enter the joint case 11a from the curtain rail 10a on the operation side, and then bend along the vertical guide roll 14a. One of the lifting cords 30a descends along the horizontal guide roll 16a, and the lifting cord hole 2 of the center case 20
It hangs down from 3. The other lifting cord 30 passes through the upper surface of the horizontal guide rolls 16a, 16b, bends along the vertical guide roll 14b, and connects the joint case 1.
1b and enters the curtain rail 10b. Although not shown, the lifting cord 30 passes through a ring of vertical tape attached to the curtain, and its tip is fixed to the lower end of the curtain.

As shown in FIG. 4, when the joint of the present invention is used, one lifting cord 30 is provided for each corner of the bay window.
The number of cords increases, but the increase does not exceed the number of corners, so there are many lifting cords compared to flat windows, which makes lifting and lowering operations unsmooth, and it is difficult to increase the width of the curtain rail. There's no need to do that. In addition, in order to fold up the corner of the curtain with a single lifting cord, as shown in Fig. 7, a single vertical tape 40 for the lifting cord attached to the curtain snakes around, and the curtains on both sides are folded alternately. Because it forms folds, the curtains can be folded up beautifully.

[Effect of the invention] As mentioned above, when the corner joint of the invention is used for a Roman shade for a bay window, even though the number of lifting cords increases compared to the case of a flat window, the increase in number is less than the number of corners, so The number of lifting cords is considerably smaller than that of the conventional system, in which two lifting cords are added for each lift. Therefore, unlike conventional products, there is no need to complicate the assembly and make operations unsmooth due to the large number of lifting cords, and there is no need to increase the width of the curtain rail. is obtained. Furthermore, in the conventional method, the corner of the curtain is pulled up using two lifting cords, which tends to cause the curtain between the two lifting cord tapes to be folded up in an unsightly manner, but with the present invention. Since the corner of the curtain is pulled up with one lifting cord, the curtain on both sides of the single lifting cord tape can always form pleats alternately and can be folded up neatly. Furthermore, since the joint of the present invention can adjust the fixed position at the corner of the bay window with two joints, it also has the effect of absorbing a relatively large amount of measurement error.

[Brief explanation of the drawing]

Fig. 1 is a horizontal sectional view of the main parts of a Roman shade equipped with a corner joint of the present invention, Fig. 2 is a vertical sectional view taken along the - line in Fig. 1, Fig. 3 is an exploded perspective view of the corner joint, and Fig. 4 5 and 6 are plan views showing the left and right limits of the attachment position of the corner joint to the window, and FIG. 7 is a perspective view of the folded curtain. FIG. 8 is a diagram corresponding to FIG. 1 of a conventional corner joint, and FIG. 9 is a schematic diagram showing the arrangement of a conventional lifting cord. In the figure, 10a and 10b are curtain rails, 11a and 11b are joint cases, and 12
a, 12b are vertical pins, 14a, 14b are vertical guide rolls, 15a, 15b are two prongs, 16a, 1
6b is a horizontal guide roll, 20 is a center case,
22a and 22b are two forked portions, and 23 is a lifting cord hole.

Claims (1)

[Scope of Claim for Utility Model Registration] 1) A corner joint consisting of left and right joint cases that are removably fitted to left and right curtain rails, and a connecting member that connects the left and right joint cases so that they can rotate relative to each other. , the coupling member includes a box-shaped center case that is open on the left and right sides and has a lifting cord hole in the center of the bottom surface, a bifurcated portion that protrudes from the center case to the left and right, and is rotatable symmetrically inside the center case. Each joint case has two prongs protruding from the curtain rail, and the two joint case prongs are connected to the center case two prongs via vertical pins. A Roman shaded corner joint for a bay window, characterized in that it is rotatably connected and a vertical guide roll is rotatably fitted onto each vertical pin. 2) Utility model registration claim No. 2, characterized in that the two horizontal guide rolls are arranged so that the upper surface of their envelope surface is the same as or slightly lower than the vertical bisector of the center case. Roman shaded corner joint for bay window as described in item 1. 3) The two forked parts of the joint case and the two forked parts of the center case are located toward the front of the center, and the outer circumferential surface of the vertical guide roll is in contact with the front and rear equally divided surfaces of the center case, or is located slightly forward of that. A Roman shaded corner joint for a bay window according to claim 1 of the registered utility model.