JPH0759872B2 - Shaft support for vertical blinds - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a shaft support for supporting a moving shaft and a rotating shaft, which are supported by both end portions of a head rail, at an intermediate portion of the head rail when a vertical blind is opened. Regarding improvement.

[Prior Art] A large number of runners are arranged on a horizontally mounted head rail of a vertical blind so that the runner can travel in the longitudinal direction, and two parallel moving shafts and rotary shafts are supported at both ends of the head rail. Penetrates each runner. Each runner is provided with a hollow gear that rotates integrally with the rotary shaft but is slidable in the axial direction, and a vertical shaft that is integrally fixed with a gear that meshes with the hollow gear. The vertical axis hangs from the center of each runner to suspend the louver. The runners are connected in a row by spacers that regulate the maximum spacing. Only the head runner is equipped with a nut that screw-engages with the moving shaft. Therefore, when the movement axis is turned to one side, the leading runner moves from one end side to the other side while pulling each runner through the spacer to close the blind, and when turned to the other side, the leading runner pushes each runner while pushing. Move from the other end to the one end to open the blind.
When the rotary shaft is rotated to one side, the louvers of each runner are simultaneously rotated around the vertical shaft to one side, and when rotated to the other, the louvers are rotated to the other side.

When the blinds are opened, the runners all shift to one side, but instead of the runners, shaft supports that support the rotation axis and the movement axis are provided. A plurality of shout supports are usually arranged, and each shaft support has a flat plate shape similar to that of the runner, and is mounted on the head rail so that it can travel freely like the runner. The rotation axis and the movement axis pass through the respective through holes of the shaft support. A permanent magnet is attached to the head runner and each shaft support, and when the blind is closed, all the shaft supports are brought closer to the other end side of the head rail by the head runner, and the head runner and each shaft support are closely attached by magnetic force. When the blind is opened, each shaft support is pulled out from the other end side to the one end side of the head rail by the magnetic force of the leading runner. Then, the respective shaft supports are sequentially separated by respective stoppers arranged on the head rail and are arranged at a predetermined interval in the longitudinal direction of the head rail.

[Problems to be Solved by the Invention] In a conventional vertical blind, it was not easy to sequentially separate the shaft supports one by one only by magnetic force and a stopper. For this reason,
No. 1 proposes that the thickness of the shaft support is thicker near the leading runner and thinner than the leading runner, and the attraction force of the magnetic force becomes smaller as the distance from the leading runner increases. However, even if the thickness of the shaft support is changed, it is not easy to adjust the suction force so that the shaft supports are separated one by one, and the cost is increased because multiple types of shaft supports with different thicknesses are prepared. There was a problem that it would be too high. In addition, in No. 62-1777898, a permanent magnet is provided on the first shaft support in contact with the leading runner, the iron piece of the second shaft support is directly on the permanent magnet of the first shaft support, and the iron bar of the third shaft support is on the second. It is proposed that the iron rod of the fourth shaft support be attracted to the permanent magnets of the first shaft support through the through holes of the shaft support and the third shaft support and the second shaft support, respectively. According to this, the shaft support after the second shaft support must be provided with a through hole for passing the iron rod of the shaft support behind it, but the area of the part where the through hole of the shaft support can be provided is Since it is small, there is a problem that the number of shaft supports to be mounted is limited.

The present invention has been made in view of the above, and an object thereof is a shaft support that is pulled out by the magnetic force of the leading runner at the time of opening the blind and is reliably separated by a stopper at a constant interval. It is to provide a product that has a low manufacturing cost and a limited number of attachments.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the means adopted by the present invention are, as shown in FIG. 1 and FIG. A large number of runners 14 mounted so as to be movable in the longitudinal direction, a rotary shaft 12 and a moving shaft 11, which are pierced through the respective runners 14 and 14a and supported at both ends of the head rail 10, and are vertically suspended by the respective runners. When the rotary shaft 12 rotates, the louver 15 rotates about the vertical axis, and when the movable shaft 11 rotates to one side, the leading runner 14
a pulls the other runner 14 to expand the louver 15 from one end side to the other end side of the head rail 10 to close the blind, and when the moving shaft 11 turns to the other side, the leading runner 14a pushes in the other runner 14. Louver 15 from the other end to the one end of head rail 10
In the vertical type of blind that opens the blinds by moving the head rails 1a to the other end side of the head runner 14a.
Flat shaft support 21 similar to multiple runners in 0 21
~ 25 can be mounted to run freely, permanent magnets 20 and 30 are attached to the leading runner and each shaft support, recesses 37 are formed on both sides of the head rail one end side vertical surface of each shaft support, and vertical pins 36 are inserted in the recesses. The pawl 32 so that it can swing
A stopper that engages with the tip of each shaft support is attached to the head rail 10, and when the claw engages with the stopper and swings, the root of the claw is adjacent to the leading runner side. The shape of the nail is formed to push.

[Operation] When the blinds are closed, all the shaft supports are brought closer to the other end side of the head rail by the leading runner and are in close contact with each other, and are magnetically attracted to the leading runner. When the leading runner is moved from the other end side to the one end side by turning the moving shaft to open the blind, all the shaft supports move together with the leading runner, but as shown in FIG. 8, first, from the leading runner 14a, The claw 32 of the farthest shaft support 25 hits the first stopper 45. When hitting the stopper, the claw swings and the claw root 34 pushes the shaft support 24 which is the second farthest from the leading runner, and securely separates the shaft support 25 farthest from the leading runner against mutual attraction. . In this way, all the shaft supports hit the stoppers in the order distant from the leading runner, and are sequentially separated reliably. Therefore, all the shaft supports are arranged at predetermined intervals by the stoppers provided on the head rail.

[Examples] The shaft support of the present invention will be described in more detail based on the examples shown in the drawings.

As shown in FIGS. 1 and 2, the vertical blind includes a horizontally extending head rail 10, and a screw-like moving shaft 11 and a spline-like rotating shaft 12 penetrate through the head rail in the longitudinal direction. . The moving shaft 11 and the rotating shaft 12 are rotatably supported at both ends of the head rail 10,
A runner 14 is passed through 11 and a rotary shaft 12 so as to run along the head rail 10. Each runner 14 bears a vertical shaft 13 for suspending a louver 15 and a hollow worm 16. Hollow worm 16
Rotates integrally with the rotary shaft 12, but is slidably fitted in the axial direction. A worm wheel 17 that engages with the hollow worm 16 is attached to the vertical shaft 13. A nut 18 that is screw-engaged with the moving shaft 11 is attached to the leading runner 14a. Although not shown, since the runners 14 including the leading runner 14a are sequentially connected by the spacers, when the moving shaft 11 rotates in one direction and the leading runner 14a moves in the direction of arrow A, the distance between the runners 14 is increased. Is limited to spacers, so open blinds close. When the moving shaft 11 reversely rotates, the leading runner 14a moves in the direction opposite to the arrow A and sequentially pushes each runner, so that all the runners are offset and the blind opens. Head rail 10
A ridge 19 is formed on the inner surface of each of the runners 14,
Guide the running of 14a. 5 on the A direction side of the top runner 14a
Individual shaft supports 21 to 25 are arranged. Each shaft support is provided with through holes 28, 29 through which the moving shaft 11 and the rotating shaft 12 pass, and ears 26 that run in the head rail 10 along the ridges 19 are provided on both sides. A permanent magnet 20 is attached to the central portion of the front runner 14a on the A direction side, and the permanent magnet 30 is also provided at the position of each shaft support axially overlapping the permanent magnet 20.
Is installed. As a result, the head runner 14a and each shaft support are in close contact with each other due to the magnetic force. Top runner
Claws 32 are provided on both sides of the other shaft supports 22, 23, 24, 25 except for the first runner 21 closely attached to 14a.

As shown in FIG. 3, the shaft support 21 following the leading runner is provided with a claw 27 under the ear 26 on the ridge 19 of the head rail 10, and the hole thereof is the first stopper 41 provided on the head rail 10.
Abut. The ear 26 and the claw 27 are integral with the runner 21.

As shown in FIGS. 4 to 7, the ears 26 of the second, third, fourth and fifth shaft supports 22 to 25 also rest on the ridges 19 of the head rail 10. Protrusions under the ears 26 and ridges 19
27 is formed integrally with each shaft support, but the lower claw 32 is formed separately, and as shown in FIG. 7, it is swingably attached to the shaft supports 22 to 25 by the vertical pin 36. To be One toe of the claw 32 of the second shaft support 22 is located on the second stopper 42 which is located a predetermined distance away from the first stopper of the head rail 10 on the other end side of the head rail (direction A in FIG. 1). The lower ends of the two toes of the claw 32 of the third shaft support 23 are located at a third stopper 43 located a predetermined distance away from the second stopper to the other end side of the head rail, and the claws of the fourth shaft support 24 are located. The lower sides of the three toes of 32 come into contact with the fourth stopper 44 which is located a predetermined distance away from the third stopper on the other end side of the head rail. As shown in FIGS. 1 and 8, the claw 32 of the fifth shaft support 25 is brought into contact with the fifth stopper 45 by the bottom of the four claw tips 33.

As shown in FIGS. 2 and 7, recesses 37 into which the respective claws 32 are fitted are provided on the vertical surfaces of the second to fifth shaft supports 22 to 25 on the one end side of the head rail, and the respective claws are fitted by the recesses. The swing angle range about the vertical pins 36 of 32 to 35 is limited. The toes of the pawl 32 project laterally from the respective side surfaces of the shaft supports 22 to 25. When the claw 32 comes into contact with the stoppers 42 to 45, the claw 32 is rotated about the vertical pin 36 in the direction A to the limit of swing. As shown in FIG. 8, when the toe 33 rotates to the swing limit, as shown in FIG. 8, the root 34 of the pawl 32 projects from the recess toward the leading runner 14a, and the adjacent shaft support 24 is closely attached. Press the vertical surface of the other end of the head rail. As a result, the shaft support 25 is separated from the shaft support 24 against the attractive force of the permanent magnet.

Next, the arrangement of the shaft support when the blind is opened will be described. When the movable shaft 11 is turned to one side to close the blind, the leading runner 14a pushes all the shaft supports 21 to 25 in the direction A in the vicinity of the other end of the head rail 10 to bring them into close contact with each other. When the moving shaft 11 is rotated in the reverse direction, the leading runner 14a moves from the other end of the head rail 10 toward one end thereof, as shown in FIG. Therefore, attach the top runner to the fifth stopper 45, which is the lowest height at the other end.
Claw 3 of the fifth shaft support 25 farthest from 14a 3
The bottom of the four toes 33 of 2 hits. Toe 33 is stopper 4
When the claw 32 hits 5 and swings, the claw root 34 protrudes in the B direction and pushes the fourth shaft support 24 to surely separate the fifth shaft support 25 from the fourth shaft support. The support 25 stops at the position of the fifth stopper 45. Similarly, the fourth shaft support 24 is located at a position closer to the B direction by a predetermined distance than the fifth stopper 45, and the bottoms of the three toe tips of the claws come into contact with the fourth stopper. Separate and stop. Similarly, the third and second shaft supports separate and stop at the positions of the third and second stoppers. The claws of the first shaft support hit the first stopper and separate from the leading runner. Since the attraction force by the magnetic force at this time is equivalent to two permanent magnets, the attraction force does not hinder the movement of the leading runner. In this way, when the blinds are opened, all the shaft supports are arranged in the longitudinal direction of the head rail at a predetermined distance to support the intermediate portion between the moving shaft and the rotating shaft.

EFFECTS OF THE INVENTION As described above, the shaft support of the present invention is provided with recesses on the side of the front runners on both sides except all or adjacent to the front runner, and the recesses are capable of swinging around the vertical pin. When the toe of the pawl is engaged with the stopper and swings, the base of the pawl projects to the front runner side and pushes the shaft support on the front runner side, so the shaft supports are attracted by the permanent magnets. Even if they come into close contact with each other, it is possible to reliably separate the shaft support against the suction force, which is a special effect. Since the shaft supports have the same shape and the same size except for the claws, they have an excellent effect that the cost is low as compared with the conventional one that requires a large number of shaft supports having different shapes and sizes.
Further, although the conventional one was not able to increase the number of shaft supports to be attached, the present invention can increase the number of shaft supports simply by changing the positions of the claws, so that it is possible to increase the number of shaft supports as compared with the conventional one. Can increase the number of shaft supports to be attached.

[Brief description of drawings]

FIG. 1 is a front view showing a vertical blind having a shaft support according to an embodiment of the present invention with a part of the main part cut away. FIG. 2 is a sectional view taken along line II-II of FIG. 1 to 6 are sectional views of the head rail.
The state where the 1st thru | or 4th shaft support is attached is shown, respectively. FIG. 7 is a perspective view of the fifth shaft support, and FIG. 8 is a view corresponding to FIG. 2, showing a state in which the shaft support is separated by a stopper. In the figure, reference numeral 10 is a head rail, 11 is a movement axis, 12 is a rotation axis, 14 is a runner, 14a is a leading runner, 20 is a permanent magnet, 21, 22, 23, 24, 25 are shaft supports, and 30 is a permanent magnet. , 32 is a nail, 33 is a toe, 34 is a root, 36 is a vertical pin, 37
Indicates a concave portion, and 41, 42, 43, 44, 45 indicate stoppers, respectively.

Claims (1)

[Claims] 1. A head rail (10) horizontally installed,
A head runner (14a) that pulls a large number of runners (14) movably attached to the head rail from one end side to the other end side of the head rail and pushes it from the other end side to one end side;
A plurality of flat plate-shaped shaft supports (21, 22, 23, 24, 25) movably attached to the head rail on the other end side of the head rail of the leading runner, and provided on both sides of each shaft support. The claws (27, 32), a plurality of stoppers (41, 42, 43, 44, 45) attached to the head rail at a predetermined interval, the runners, and the shaft supports. Two parallel moving shafts (1
1), a rotary shaft (12), and a vertical blind comprising the leading runner and permanent magnets (20, 30) attached to the shaft supports (21, 2).
2, 23, 24, 25) or each shaft support (22, 23, 24, 25) except for the one adjacent to the leading runner is provided with a recess (37) on the vertical surface on one end side of the head rail and is perpendicular to the recess. The pawl (32) is swingably attached via a pin (36), the stopper is set to engage with the tip of the shaft support in the order of increasing distance from the leading runner, and the pawl engages with the stopper. The claws are formed so that their roots (34) press the vertical surface of the adjacent shaft support on the side of the leading runner when they are rocked. When moving from the other end side to the one end side, when the pawl engages with the stopper, the base of the pawl resists the attractive force of the permanent magnet and pushes the shaft support adjacent to the leading runner side to separate it from it. Vertical blind shaft support, characterized and.