JPH0215989Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a connecting device for a horizontal blind for a bay window, which is attached to the upper stile of the window in accordance with the bay window.

Generally, horizontal blinds for bay windows have a structure in which multiple horizontal blinds are attached to the upper stile of the window to match the bay window, so that the slats for all the blinds can be opened and closed at the same time by operating a single opening/closing code. In addition, the rods for opening and closing the slats of adjacent horizontal blinds are connected to each other. Conventionally, such rods have been connected via flexible shafts or gears.

However, with such conventional coupling devices, rotation may not be transmitted sufficiently if adjacent horizontal blinds are bent significantly, and one horizontal blind must always be kept biased against the other horizontal blind. There were some drawbacks such as not being able to do so.

The present invention improves the above-mentioned drawbacks, and provides a horizontal blind for bay windows that can accurately transmit rotation even if the adjacent horizontal blind is bent significantly, and can also transmit rotation without keeping the adjacent horizontal blind in an energized state. The purpose is to provide a coupling device,
In a connecting device for horizontal blinds for a bay window, in which a plurality of horizontal blinds are attached to the upper stile of the window in accordance with the bay window, for opening and closing the slats housed in the longitudinal direction within the head boxes of the horizontal blinds that are adjacent to each other. A connecting member having a universal joint that is connected to the end of the rod, and two that rotatably support this connecting member and mesh with each other using spur gears.
a frame body having a plate rotatably connected to the universal cases on the central axis of the spur gear, the center of the universal joint being positioned on the central axis of the spur gear; It is composed of

Hereinafter, one embodiment of the present invention will be described based on the drawings.

FIG. 1 is a perspective view showing the installed state of the horizontal blind for a bay window according to the present invention. In this figure, 1, 2, and 3 are horizontal blinds, respectively.
A slider box 5 and a code box 6 are installed inside the head box 4, and a rod 7 having a hexagonal cross section is housed in the longitudinal direction passing through the boxes 5 and 6. By operating the opening/closing cord 9 of the slider 8 installed, a ladder cord 10 suspended from the head box 4 is actuated, and the slat 11 is opened/closed.

These horizontal blinds 1, 2, 3 have a frame 1
2 and a connecting member 13 that is rotatably supported by the frame 12.

FIG. 2 is a partially cutaway plan view of the adjacent portion of the headbox 4, and FIG. 3 is a partially cutaway front view of the adjacent portion of the headbox 4. In these figures, reference numeral 14 denotes a headcap, and this headcap 14 has an engaging piece 15 and a bearing part 16 protrudingly formed on one side thereof, and when the engaging piece 15 engages with the inner side surface of the head box 4, the head box 4 is closed. It is installed on 4. As shown in FIG. 4, a partially fan-shaped recess 17 is formed on the other side of the headcap 14, and a through hole 18 is formed between the recess 17 and the bearing portion 16.

The frame 12 engages with this headcap 14. The frame 12 has a U-shaped cross section, and has semicircular spur gears 19 of the same diameter formed on the upper and lower arms, and a bearing section 21 having a yoke hole 20 on the side surface, and a bearing section 21 having a yoke hole 20 on the side surface. A first universal case 2 in which a locking protrusion 22 protruding downward is formed.
3, and a second universal case in which spur gears 24 are formed on the upper and lower arms like the first universal case 23, and a bearing portion 26 having a yoke hole 25 on the side surface is formed.
The universal case 27 is connected to each other's spur gears 19,
24 are provided facing each other so as to mesh with each other.
A plate 30 is rotatably provided on the upper and lower surfaces of the gears 19 and 24 with a rivet 29 that is loosely fitted into a rivet hole 28 formed at the center of the gears 19 and 24, and a plate 30 is rotatably provided on the upper and lower surfaces of the gears 19 and 24. are meshed with gears 19 and 24 and are rotatable. and the first universal case 2
The bearing portion 21 and locking protrusion 22 of No. 3 fit into the recess 17 of the head cap 14, and within the range in which the locking protrusion 22 can rotate in the fan-shaped portion of the recess 17, the frame 12 rotates in the circumferential direction of the bearing portion 21. It is rotatable.

To assemble such a frame 12, as shown in the exploded perspective view of FIG. 31, protrudes outward through the rivet 29 and the through hole 31 of the plate 30, and this rivet 29
Universal case 2 by caulking the protruding part at the tip
3, 27 and plate 30 are connected.

The connecting member 13 is rotatably supported in the yoke holes 20 and 25 of the frame 12. The connecting member 13 includes a first yoke 32, a second yoke 33, a universal body 34, and a U spider 35 that connects the yokes 32, 33 and the universal body 34 to form a universal joint. The first yoke 32 has a hexagonal rod hole 36 into which the rod 7 fits, and a through hole 36 near one end.
7 is formed, and a forked arm 3 is formed at the other end.
8 is formed protrudingly. The universal main body 34 has bifurcated arms 39 and 40 formed on both sides in the axial direction, and the U spider 35 is rotatably provided on a shaft 41 between the arms 39 and the arm 38 of the first yoke 32. A first universal joint is formed. The second yoke 33 has a forked arm 4 at one end.
2 is formed, and a second universal joint is similarly formed with the arm 40. Further, at the other end of the second yoke 33, a locking piece 43 that protrudes widely in the radial direction is formed, and as shown in FIG. 5, a substantially arch-shaped spacer connection hole 44 is formed.

The connecting member 13 is pivotally supported through the yoke holes 20 and 25 of the frame body 12 and the through hole 18 of the head cap 14, and the locking piece 43 abuts on the bearing portion 26 of the second universal case 27. At the same time, the rod hole 36 of the first yoke 32
The rod 7 is fitted therein and is connected and fixed to the rod 7 through a bush 45 and a screw 46. In this state, the universal main body 34 is located inside the frame 12, and the first
The centers of the second universal joint and the second universal joint are located on the central axes of the gear 19 of the first universal case 23 and the gear 24 of the second universal case 27, respectively. Therefore, the first and second universal cases 2
3 and 27 rotate, the first and second yokes 3
2 and 33 also rotate at the same angle, and the angles of the first and second yokes 32 and 33 and the universal main body 34 are set to be the same, so that the same rotation angle can be transmitted.

The first yoke 33 side of the connecting member 13 is connected to the rod 7 of the horizontal blind 4 on the side via a spacer 47.
connected to. This spacer 47 has a slightly smaller arch-shaped connecting shaft 48 formed in the same shape as the spacer connecting hole 44 on one side, and a hexagonal rod hole 49 into which the rod 7 fits on the other side. A through hole 50 is formed through the spacer, and the connecting shaft 48 is removably fitted into the spacer connecting hole 44, and the rod 7 is fitted into the rod hole 49 and is connected and fixed with a screw 52 via a bush 51. ing.

In order to connect the horizontal blinds using such a connecting device for horizontal blinds for bay windows, first, the central horizontal blind 1 is attached with the frame 12 and the connecting member 13 on both ends, and the horizontal blinds on both sides are attached with the spacer 47 on one end. The blinds 2 and 3 are attached to the upper frame of a window with their head boxes 4 adjacent to each other, and then the frame 12 is rotated to connect the connecting shaft 48 of the spacer 47 to the spacer connecting hole 4 of the second yoke 33.
4 and adjacent horizontal blinds 1, 2, 3
Connect the rods 7.

Opening and closing of the slats 11 of the bay window blinds connected by this horizontal bay window blind connecting device is performed by operating the opening/closing cord 9 at one location.
When the opening/closing cord 9 is operated, the rod 7 is rotated, and the adjacent rods 7 are sequentially rotated by the same angle via the connecting member 13 connected to this rod 7, so that the slats 11 of all the blinds 1, 2, and 3 are rotated. Open on the same slope.

In the above embodiment, the connecting hole 44 and the connecting shaft 48, which are the connecting portion between the spacer and the connecting member, are formed in an arch shape, but the shape is not limited to this. Any shape is acceptable as long as it does.

Since the present invention is constructed as described above, even if adjacent horizontal blinds are bent significantly, the connecting member can always transmit accurate rotation, and rotation can be transmitted simply by connecting the rod to the connecting member. There is no need to keep the horizontal blind in an energized state, and since the frame and the connecting member are separate, it is easy to swage the rivets when assembling the frame by connecting the universal case and plate. And it can be done reliably. Furthermore, when the universal case is connected to the central horizontal blind, assembly of adjacent horizontal blinds becomes simple.

In addition, since the connecting portions of the spacer and the connecting member are configured so that the same surfaces always engage,
The rods of adjacent horizontal blinds are always connected in a predetermined state, and the slats of each horizontal blind can always be opened and closed at the same angle.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the installed state of a horizontal blind for a bay window, FIG. 2 is a partially cutaway plan view showing the connected state of an embodiment of the connecting device for the horizontal blind for a bay window according to the present invention, and FIG. 4 is a sectional view taken along the line A-A in FIG. 3;
The figure is a sectional view taken along the line BB in FIG. 3, and FIG. 6 is an exploded perspective view of the same. 1, 2, 3...horizontal blind, 4...head box, 7...rod, 11...slat, 1
2... Frame body, 13... Connection member, 14... Head cap, 19, 24... Spur gear, 23... First
Universal case, 27...Second universal case.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In a connecting device for a horizontal blind for a bay window, in which a plurality of horizontal blinds are attached to the upper stile of the window in accordance with the bay window, a longitudinal blind is installed in the head box of each horizontal blind adjacent to each other. A connecting member having a universal joint connected to the end of a rod for opening and closing slats housed in the same direction, and two universals that rotatably support this connecting member and mesh with each other using spur gears. The invention comprises a case and a frame having a plate rotatably connected to the universal case about the central axis of the spur gear, and the center of the universal joint is positioned on the central axis of the spur gear. A connecting device for horizontal blinds for bay windows. (2) A connecting device for a horizontal blind for a bay window according to claim 1 of the utility model registration, which combines a universal case with a central horizontal blind having blinds on both sides.