JPH0738592U - Blind operating member - Google Patents

Abstract

(57) [Summary] [Purpose] Lifting cord 2 for multiple blinds 11, 12, and 13
A blind operating member comprising a hollow universal joint 14 and a hollow operating rod 15 through which operation codes such as 1, 22, 23 are passed,
(EN) Provided is one capable of withstanding the loads of a plurality of blinds and causing no trouble even if the operation code of each blind is operated independently. [Structure] A partition wall that divides the central hole of the cross-shaped arm of the hollow universal joint 14 into a plurality of passages is integrally provided, and a partition wall that divides the hollow portion of the hollow operation rod 15 into a plurality of passages is integrally provided.
The operation codes 1, 22, 23, etc. were divided for each blind, and were inserted into different passages of the hollow universal joint 14 and the hollow operation rod 15, respectively.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention tilts a plurality of blind slat rows through a common hollow operating rod that hangs down from the head box, and operates the operating cords such as the lifting cords that are pulled out from the lower end of the hollow operating rod to operate each slat column. The present invention relates to improvement of an operation member of a Venetian blind which can be raised and lowered independently.

[0002]

[Prior art]

 A device that opens and closes the blind by rotating a hollow operating rod that hangs from the head box of the blind, and pulls an elevating cord that hangs from the hollow operating rod to raise and lower the blind is the actual open sho 59-132894. And Japanese Patent Publication No. 61-56383. The operating member of the device is provided with a hollow shaft projecting obliquely downward from the head box, and the hollow shaft is connected to a tilt shaft for inclining the slat via a gear mechanism in the head box, and the hollow shaft has a hollow universal joint. The hollow operating rod is connected via the cord, and the lifting cord for raising and lowering the bottom rail is pulled out from the head box through the hollow shaft and the hollow universal joint via the cord locking mechanism attached to the lower end of the hollow operating rod. It was Japanese Utility Model Publication No. 5-4549 discloses that a cord lock mechanism is provided at the upper end of a hollow operating rod.

[0003]

[Problems to be solved by the device]

 When a blind is installed in each window, such as a bayonet with front and both sides, a continuous window with multiple surfaces, etc., a hollow operating bar hangs down for each blind and the hollow operating bar hangs down. The appearance becomes poor. To prevent this, the head boxes of the windows of each window must be connected and all operation cords must be passed through a common blind operating member, the hollow operating rod, but the conventional hollow operating rod is used. In addition, there is a possibility that many lifting cords will be entangled inside, and if a common cord locking mechanism is provided inside one hollow operating rod, the hollow operating rod cannot withstand the load of all blinds in terms of strength. There was a problem.

The present invention has been made to solve this problem, and its purpose is to provide a hollow operating rod with a strong operating force even when an operating cord such as a lifting cord to which a plurality of blinds are loaded is applied. It is to provide a blind operating member that can withstand the above conditions and can prevent the operation cords such as the lifting cords from being entangled with each other.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the means adopted by the present invention is that the central hole of the cross arm of the hollow universal joint and the hollow portion of the hollow operating rod that form the blind operating member are provided with an integral partition wall, respectively, and the inside thereof is It is divided into multiple passages. The operation code such as the lifting code of the blind is inserted from the head box through the center hole of the cross arm of the hollow universal joint and the hollow part of the hollow operation rod.At this time, the operation code such as the lifting code is grouped for each blind. In one passage, and do not pass the lifting cord of another blind in the same passage.

[0006]

[Action]

 Operation codes such as lifting codes for a plurality of blinds are inserted from the headbox into a common hollow operation rod via a common mid-air universal joint, and then a common cord locking mechanism is provided as is or on the mid-air operation rod. After that, it is pulled out. Each blind has a plurality of lifting cords and other operating cords, but the operating cord that penetrates the hollow part of the hollow operating rod from the central hole of the cross arm of the hollow universal joint is divided by the partition for each blind. Since the blinds are inserted into the different passages, there is no risk that the operation codes of different blinds will be entangled in the hollow universal joint or in the hollow operation rod, thereby hindering the independent operation of each blind. The partition that separates the hollow part of the hollow operation rod is integral with the hollow operation rod, and its strength is greatly improved compared to a tubular type without a partition, so it can withstand the load of multiple blinds sufficiently. be able to.

[0007]

【Example】

 A blind operating member of the present invention will be described based on an embodiment shown in the drawings. As shown in FIG. 1, the three blinds 11, 12 and 13 have a head box 10 directly connected thereto and a common hollow operating rod 15 hanging from the head box via a common hollow universal joint 14. At the lower end of the hollow operation rod 15, a grip 16 having a cord lock mechanism is provided. When the hollow operating rod 15 is turned via the grip 16, the slats 17 of the three blinds simultaneously tilt in the same direction. Pull out one end of the lifting cords 21, 22, 23 from the grip 16 and attach each knob 20. The other ends of the lifting cords 21, 22, 23 are fixed to the bottom rails 19 of the blinds 11, 12, 13 respectively.

As shown in FIG. 2, the hollow input shaft 31 of the hollow universal joint 14 is supported by a gear case 30 fixed to the head box 10. Attach the bevel gear 32 integrally to the upper end of the hollow input shaft 31, and engage the bevel gear with another bevel gear 33. The bevel gear 33 is integrated with an internal gear 34 whose outer circumference is supported by the gear case 30. The internal gear 34 meshes with the pinion 35 integrally attached to the tilt shaft 36. Since the tilt shaft 36 is common to the three blinds, when the tilt shaft 36 rotates, the slats of the blinds simultaneously tilt. The lifting cords 21, 22, 23 of each blind enter the central hole of the cross arm 18 via the hollow input shaft 31 of the hollow universal joint 14 via the guide rolls 26, 27, and then connect to the upper end of the hollow operating rod. Enter the hollow output shaft 37.

As shown in FIG. 3A, the central hole 28 of the cross-shaped arm 18 is completely separated into three passages 28 a, 28 b, 28 c by an integrally formed T-shaped partition wall portion 29. The raising and lowering cords 21, 22, 23 of the three blinds are divided for each blind and passed through the passages 28a, 28b, 28c, respectively. As shown in FIG. 3B, a through hole is formed in the center of the T-shaped partition 29 of the central hole 28 of the cross-shaped arm 18 to form four completely separated passages 28a, 28b, 28c, 28d. Is also possible.

As shown in FIG. 3C, the central hole 28 of the cross-shaped arm 18 is divided into four circumferentially-arranged passages 28 a, 28 b, 28 c, 28 d by a cross-shaped partition wall 29. Alternatively, or as shown in FIG. 3 (d), four circumferentially-arranged passages 28a in which the central hole 28 of the cross-shaped arm 18 is incompletely separated by a cross-shaped partition wall 29 lacking the central portion, You may form in 28b, 28c, 28d.

As shown in FIG. 4 (a), the hollow operation rod 15 has a T-shaped partition wall 24 formed integrally, and the hollow portion 25 is completely separated into three passages 25 a, 25 b, 25 c. The raising and lowering cords 21, 22, 23 of the three blinds placed in the hollow operation rod 15 are divided for each blind and passed through the passages 25a, 25b, 25c, respectively. As shown in FIG. 4 (b), the hollow operating rod 15 may be formed of four passages 25a, 25b, 25c and 25d which are completely separated by forming a through hole at the center of the T-shaped partition wall 24. Both are possible.

Further, as shown in FIG. 4C, the partition wall 24 of the hollow operating rod 15 is formed into a cross shape so that the hollow portion 25 is completely separated from four circumferentially arranged passages 25a, 25b, 25c, 25d. May be formed. Further, the central portion of the T-shaped partition wall 24 of the hollow operation rod 15 may be cut away to form the hollow portion incompletely separated from each other by four passages 25a, 25b, 25c and 25d arranged in the circumferential direction.

Inside the hollow universal joint 14 and the hollow operating rod 15 which form the blind operating member, the lifting cords 21, 22, 23 of the blinds 11, 12, 13 are completely separated from each other so that they do not come into contact with each other. Because of the regulation, there is no risk that the operation of each lifting cord will be obstructed by other lifting cords. Therefore, as shown in FIG. 5, by independently pulling the lifting cords 21, 22, and 23 of the blinds 11, 12, and 13 hanging from the grip 16 of the hollow operation rod 15, respectively, the blinds are moved to a desired height. It can be raised freely and lightly.

In the above-mentioned embodiment, the common cord lock mechanism is provided in the hollow operation rod and the elevating cord is passed through. However, the operation cord is not limited to the elevating cord, and the cord locking mechanism is provided in the hollow operation rod. It does not need to be limited to those provided with. As shown in FIG. 6, a cord lock mechanism 40 for raising and lowering cords 21 is provided in the head box 10, and a cord lock operation cord 41 for operating the cord lock mechanism is operated blindly including the hollow operating rod 15 together with the raising and lowering cords 21. It is also possible to pass it through a member.

[0015]

[Effect of device]

 As described above, the blind operating member of the present invention passes the operation code such as the lifting code of the blinds that are independently moved up and down through the single hollow universal joint and the hollow operating rod, but it is operated by the partition wall integrated inside. Since the cords are separated for each blind and the contact with each other is regulated, even if the operating cords of each blind are operated independently, the operation is not hindered by the operating cords of other blinds, and the hollow operating rod is a partition wall. Since it is reinforced by, it has the excellent effect of being able to withstand the loads of multiple blinds.

[Brief description of drawings]

FIG. 1 is a front view of a triple blind including a blind operating member according to an embodiment of the present invention,

2 is a cross-sectional view of a main part of the blind operating member of FIG. 1,

FIG. 3 is a cross-sectional view of a cross-shaped arm of a hollow universal joint,

FIG. 4 is a sectional view of a hollow operating rod,

FIG. 5 is a view showing a state in which each blind of FIG. 1 is independently raised and lowered,

FIG. 6 is a schematic view of a blind with another embodiment,

[Explanation of symbols]

10: Head box, 11, 12, 13: Blind, 14: Hollow universal joint, 15: Hollow operating rod, 16: Grip, 17: Slat, 18: Cross arm, 19: Bottom rail, 20: Knob,
21, 22, 23: Lift code, 24: Partition wall, 25: Hollow part, 25
a, 25b, 25c, 25d: passage, 26, 27: guide roll,
28: central hole, 28a, 28b, 28c, 28d: passage, 29: partition, 30: gear case, 31: hollow input shaft, 32, 33: bevel gear, 34: internal gear, 35: pinion, 36: tilt shaft, 37: Hollow output shaft, 40: Code lock mechanism, 41: Code lock operation code

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshiki Ube 1-4-9 Shinkawa, Chuo-ku, Tokyo Toso Co., Ltd.

Claims (5)

[Scope of utility model registration request] 1. A blind (11, 12) provided with a common hollow universal joint (14) bearing a head box (10) and a common hollow operating rod (15) having an upper end connected to the hollow universal joint. , 13) operation cords (21, 22, 23, 41) are inserted into the hollow operation rod through the hollow universal joint and then pulled out to the outside, which is the blind universal joint. The hollow portion of the hollow operation rod is divided into a plurality of passages (28a, 28b, 28c, 28d) by a partition wall (29) integrally provided with a hollow hole (28) of the cross-shaped arm (18) through which the operation cord of FIG. A plurality of passages (25a, 25b, 25c, 25d) by a partition wall (24) integrally provided with (25)
Blind operating member characterized by being divided into. 2. The blind operating member according to claim 1, wherein the operation code is a lifting code (21, 22, 23). 3. The lifting cords (21, 22, 23) are hollow operating rods 15.
The blind operating member according to claim 2, wherein the blind operating member is pulled out through a common cord lock mechanism provided inside. 4. The blind operating member according to claim 1, wherein the operation code is a code lock operation code (41) for operating a code lock mechanism (40) provided in the head box (10). 5. The blind operating member according to claim 1, wherein the operating codes are a lifting code (21, 22, 23) and a code lock operating code (41).