JP4722459B2 - Horizontal blind slat lifting device - Google Patents

Description

  The present invention relates to a slat lifting device for a horizontal blind that lifts and lowers a slat by pulling the lifting cord from the head box or pulling the lifting cord into the head box.

  As a type of horizontal blind, a lifting cord is suspended from one side of the head box, and the bottom rail and slats can be pulled up by pulling the lifting cord from the head box. The lifting cord is placed inside the head box by its own weight. In some cases, the slats can be moved down by being pulled in.

  In such a horizontal blind, in order to prevent the bottom rail and the slat from falling under its own weight when the lifting / lowering cord is not operated, a stopper device is provided on the lifting / lowering cord outlet on one side of the head box. This stopper device is attached so as to open at the front corner of the head box in order to pull out the lifting cord to the front side of the slat.

  In a horizontal blind equipped with the stopper device as described above, for example, a lifting cord that is suspended from the right end of the head box for right operation is used for left operation. When installed, the stopper device opens toward the rear of the head box. Therefore, it is virtually impossible to change the operating position of the lifting / lowering cord to the left or right.

  In Patent Literature 1, the operation position of the lifting / lowering cord can be changed in the left-right direction by supporting the stopper mechanism so as to be rotatable with respect to the head box with the tilting axis in the head box as the rotation center. And the structure which fixes a stopper mechanism to a rotation position by engaging the latching member integral with a stopper mechanism with a head box, or inserting a spacer in a head box is disclosed.

Further, in Patent Document 2, a stopper is provided at the movable end provided on one side of the head box, the movable end is rotated with respect to the head box, and the convex on the movable end is provided with respect to the concave on the mount side. A configuration is disclosed in which the operating position of the lifting / lowering cord can be changed in the left-right direction by engaging.
Japanese Patent No. 3682170 Japanese Patent Laid-Open No. 10-8858

  In the configuration described in Patent Document 1, since the stopper mechanism is rotated about the tilting axis as a rotation center, the stopper mechanism is moved, for example, downward in a direction other than the rotation direction, so that the locking member and the head box are moved. In order to release the engagement, it is necessary to move the stopper mechanism by bending the tilting shaft. Accordingly, the engagement member disengagement operation prior to the rotation operation of the stopper mechanism becomes complicated.

  In addition, when positioning the stopper mechanism with the spacer in the head box, remove the spacer from the head box prior to the rotation of the stopper mechanism, and after the rotation of the stopper mechanism, place the spacer in the head box again. It is necessary to insert. Therefore, there is a problem in that the spacer attaching / detaching operation accompanying the rotation operation of the stopper mechanism becomes complicated.

  In the configuration described in Patent Document 2, since the movable end portion is held at the rotational position by engaging the convex portion with the concave portion, the movable end portion can be secured when sufficient engagement holding force cannot be secured. Cannot be reliably held at the pivot position, and when the pivot end is pivoted, the projection may get over the recess and pivot more than necessary.

  On the other hand, when the engagement holding force between the convex portion and the concave portion is increased, the operating force necessary for engaging the convex portion with the concave portion or the operating force necessary for releasing the engagement between the convex portion and the concave portion There is a problem that increases.

  An object of the present invention is to provide a horizontal blind slat lifting device that can easily change the pulling-out direction of the lifting / lowering cord to the front / rear direction of the headbox and change the operating position of the lifting / lowering cord to the left / right direction of the headbox. It is in.

  Further, the above object is to allow the slat to be pulled up by pulling out the lifting / lowering cord from the head box, and to lower the slat by pulling the lifting / lowering cord into the head box. Locking means for supporting the stopper device movably in the front-rear direction of the head box and positioning it at the moving end of the stopper device in a horizontal blind suspended from the head box via a stopper device that prevents a drop of its own weight And provided with guiding means for supporting the stopper device so as to be able to protrude and retract with respect to the head box at the moving end, and when the stopper device is inserted into the head box based on the guiding means, A horizontal blind slack for positioning the stopper device. It is achieved by a lifting device.

  According to the present invention, there is provided a horizontal blind slat lifting device that can easily change the pulling-out direction of the lifting / lowering cord to the front / rear direction of the head box and change the operation position of the lifting / lowering cord to the left / right direction of the head box. Can do.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the horizontal blind shown in FIG. 1, a plurality of slats 3 are suspended from a head box 1 via a plurality of ladder cords 2, and a bottom rail 4 is attached to the lower end of each ladder cord 2.

  An upper end portion of the ladder cord 2 is attached to a support drum 5 in the head box 1, and the support drum 5 is rotatably supported by a support member 6. A drive shaft 7 is fitted into the support drum 5, and one end of the drive shaft 7 is fitted into a gear box 8 disposed at one end of the head box 1.

  When the operating rod 9 is suspended from the gear box 8 and the operating rod 9 is rotated, the drive shaft 7 is rotated through the gear box, and the support drum 5 is rotated as the drive shaft 7 rotates.

Accordingly, the support drum 5 is rotated by rotating the operation rod 9, and each slat 3 is rotated via the ladder cord 2 by the rotation of the support drum 5.
In the slats 3, the lifting / lowering cords 10 are inserted in the vicinity of the support portions of the ladder cords 2, and the bottom rail 4 is suspended and supported at one end of each lifting / lowering cord 10.

  The other ends of the plurality of lifting / lowering cords 10 are guided to one end side in the head box 1, suspended from the head box 1 through the stopper device 11, and connected to the code equalizer 12. One end of an operation cord 13 is connected to the cord equalizer 12, and the other end of the operation cord 13 is connected to one end of the bottom rail 4.

  When the operation cord 13 is operated and the lifting / lowering cord 10 is pulled out from the head box 1, the bottom rail 4 is lifted and sequentially lifted from the lower slat 3. Further, if the lifting / lowering cord 10 is pulled into the head box 1 based on the weights of the bottom rail 4 and the slat 3, the bottom rail 4 is lowered to return to the state in which the ladder cord 2 is sequentially supported from the upper slat 3. To do.

If the operation cord 13 is released, the stopper device 11 is actuated to prevent the bottom rail 4 from falling under its own weight, and the slat 3 is suspended and supported at a desired height.
Next, a specific configuration of the stopper device 11 will be described. As shown in FIG. 2, the stopper device 11 is fitted from below to a groove-type head box 1 whose case 14 is open upward. That is, as shown in FIG. 5, the mounting position of the stopper device 11 is provided with a mounting hole 15 cut out to the center in the vertical direction of the bottom side and side of the head box 1, and the case 14 is fitted into the mounting hole 15. It is worn.

  The case 14 is formed of synthetic resin, and a stopper body 16 is attached. The stopper body 16 includes a fixed roller and a movable roller supported so as to be able to contact and separate from the fixed roller, and the elevating cord 10 is inserted between the fixed roller and the movable roller. Then, when the lifting / lowering cord 10 is not operated, the lifting / lowering cord 10 is sandwiched between the fixed roller and the movable roller to prevent the lifting / lowering cord 10 from being pulled into the head box 1.

  A pair of locking projections 17a and 17b are provided on both sides of the stopper body 16 in the longitudinal direction of the head box 1, and the locking projections 17a and 17b are provided on both sides of the case 14 in the longitudinal direction of the head box 1. Are provided with a first locking hole (moving groove) 18 and second locking holes 19a, 19b.

  The first locking hole 18 is formed in a circular arc shape whose both ends are curved upward, and a sliding portion (first guide hole, guide means, guide groove) extending toward the center of the arc at both ends. ) 20 is provided. The second locking holes (second guide holes, guide means, guide grooves) 19 a and 19 b are long holes formed on the extension line of the slide portion 20 below the slide portion 20.

  As shown in FIGS. 3 and 4, when the locking protrusion 17 a is engaged with the first locking hole 18, the locking protrusion 17 a is supported so as to be movable along the first locking hole 18. Therefore, the stopper main body 16 is guided to both sides of the case 14 and supported so as to be movable only in the front-rear direction of the head box 1.

  The stopper main body 16 is moved to the moving end along the first locking hole 18 so that the locking projection 17a is positioned on the slide portion 20. In this state, the locking projection 17b is moved to the second locking hole 19a, When engaged with any one of 19b, the locking projections 17a, 17b can slide along the slide portion 20 and the second locking holes 19a, 19b. Therefore, in this state, the stopper main body 16 is supported so as to move up and down in an oblique direction with respect to the case 14, that is, to be able to protrude and retract with respect to the head box 1.

  Further, as shown in FIG. 8, a protrusion 25 is formed in the vicinity of the second locking holes 19 a and 19 b on the bottom surface of the case 14. The distance between the protrusion 25 and the first locking hole 18 is formed to be slightly larger than the distance between the locking protrusions 17a and 17b.

  Therefore, when the locking projection 17b is moved toward the slide portion 20 while the locking projection 17b is moved along the bottom surface of the case 14 to the second locking holes 19a and 19b, the locking projection 17b is projected. In order to get over 25, a predetermined sliding resistance is generated. And after getting over the protrusion 25, the latching protrusion 17b is hold | maintained at the opening part of 2nd latching hole 19a, 19b.

  As shown in FIGS. 4 and 5, a pair of locking pieces (release means) 21a and 21b for holding the stopper main body 16 are provided on the upper portion of the case 14 so as to face each other. , 21b is formed as an inclined surface that goes downward along the stopper body 16 that slides along the slide portion 20 and the second locking holes 19a, 19b. And the locking protrusion (locking means) 22a and 22b is formed in the upper part of the slope, respectively.

  As shown in FIG. 7, locking grooves (locking means) 23 a and 23 b are formed in the upper side surface of the stopper body 16 in the front-rear direction of the head box 1. When the stopper body 16 is pushed up along the slide portion 20 and the second locking hole 19a, the locking groove 23a is elastically engaged with the locking protrusion 22a, and the stopper body 16 is positioned. Further, when the stopper body 16 is pushed up along the slide portion 20 and the second locking hole 19b, the locking groove 23b is elastically engaged with the locking protrusion 22b and the stopper body 16 is positioned.

  The stopper main body 16 positioned by the locking ridge 22a or 22b is pressed downward while expanding the locking pieces 21a and 21b so that the distance between the locking pieces 21a and 21b is widened. The engagement can be released.

Therefore, the stopper main body 16 can be positioned by selecting either the locking protrusion 22a or 22b.
As shown in FIGS. 12 to 14, two hooks 24 a and 24 b protrude from the lower surface of the gear box 8 that supports the operation rod 9 in a suspended manner, and the operation rod 9 is suspended and supported by the hooks 24 a and 24 b. It is possible.

  The hooks 24 a and 24 b are provided at the lower ends of the two input shafts of the gear box 8, and the rotation of one of the input shafts is transmitted to the drive shaft 7 via a gear mechanism in the gear box 8. The gear mechanism includes a bevel gear and a worm mechanism.

Therefore, the drive shaft 7 can be rotationally driven by rotating the operation rod 9 over one of the hooks 24a, 24b.
Next, the operation of the horizontal blind constructed as described above will be described. As shown in FIG. 1, when the stopper device 11 and the operating rod 9 are used for the right operation to be positioned on the right end side of the head box 1, as shown in FIG. 4, the stopper body 16 is provided with its locking groove 23a. Is positioned in a state of engaging with the locking protrusion 22a of the case 14. Further, as shown in FIG. 14, the operation rod 9 is suspended and supported from a hook 24 a located in front of the head box 1.

  In such a state, the slat 3 can be moved up and down by operating the operation cord 13 suspended to the right end side of the head box 1, and the angle of the slat 3 can be adjusted by operating the operation rod 9. .

  When changing from the right operation to the left operation, as shown in FIG. 6, the engagement pieces 21 a and 21 b of the case 14 are elastically deformed so as to be spread from the upper opening of the head box 1. The stopper main body 16 is pressed downward in a state where the engagement between the stop protrusion 22a and the locking groove 23a is released. Then, as shown in FIG. 7, the stopper body 16 can slide downward along the slide portion 20 and the second locking hole 19a.

  Next, the locking projection 17b is removed from the second locking hole 19a, and the stopper body 16 is rotated as shown in FIG. Then, when the locking projection 17b is engaged with the second locking hole 19b and the stopper body 16 is further pushed up along the second locking hole 19b and the slide portion 20, as shown in FIG. The protrusion 22b engages with the locking groove 23b, and the stopper main body 16 is positioned in the case 14. Further, the operation rod 9 is removed from the hook 24a and suspended from the hook 24b.

  In this state, if the head box 1 is changed to the left and right direction and fixed to the mounting surface, the operation cord 13 and the operation rod 9 are suspended from the front portion of the head box 1 at the left end of the head box 1. Become. Therefore, this horizontal blind can be used for left operation.

With the horizontal blind constructed as described above, the following operational effects can be obtained.
(1) Since the lifting / lowering cord 10 can be taken out by selecting either the front-rear direction of the head box 1, either the right operation or the left operation can be selected.
(2) Since the stopper main body 16 can be rotated and positioned with respect to the case 14, the head box 1 can be moved up and down regardless of whether the right operation or the left operation is selected. The cord 10 can be suspended from the front of the head box 1. Therefore, damage due to the interference between the lifting / lowering cord 10 and the slat 3 can be prevented in advance.
(3) The stopper main body 16 is moved in the front-rear direction with respect to the case 14, and is further moved along the slide portion 20 and the second locking holes 19a and 19b in the direction to be immersed in the head box 1, thereby The stopper body 16 can be easily fixed to the case 14 by elastically engaging the 22a and 22b and the locking grooves 23a and 23b.
(4) By operating the locking pieces 21a and 21b from above the head box 1 and elastically deforming them in the direction approaching the head box 1, the engagement between the locking ridges and the locking grooves is easily released. be able to.
(5) When the locking projections 17a and 17b are moved into the slide portion 20 and the second locking holes 19a and 19b, the state can be maintained by the protrusion 25. Therefore, if the stopper main body 16 is moved along the slide portion 20 and the second locking holes 19a and 19b from this state, the locking protrusions 22a and 22b and the locking grooves 23a and 23b can be easily engaged. Can be made.
(6) The stopper body 16 can be supported so as to be movable only in the front-rear direction between both sides of the case 14.
(7) The two hooks 24a and 24b are projected from the gear box 8 in the front-rear direction of the head box 1, and the operation rod 9 can be attached to any one of the hooks 24a and 24b. Therefore, even if the head box 1 is changed in the left-right direction, the operation rod 9 can be suspended from the front portion of the head box 1.

You may implement the said embodiment in the following aspects.
The means for positioning the stopper main body 16 in the case 14 may be provided with a locking groove in the case 14 and a locking protrusion on the stopper main body 16.
As shown in FIG. 11, if the ribs 26 are provided on both sides of the lower portion of the stopper main body 16, it is possible to improve the operability for performing the movement operation of the stopper main body 16.
-The 1st locking hole 18 is good also as elliptical arc shape and linear form.
The first locking hole 18, the slide part 20, and the second locking holes 19a and 19b may be provided in the head box 1.
-You may comprise so that it may be positioned when the stopper main body 16 is moved to the direction which protrudes from the head box 1. FIG.

It is a front view which shows the horizontal blind of one Embodiment. It is a perspective view which shows a stopper apparatus. It is a front view which shows a stopper apparatus. It is a perspective view which shows a stopper apparatus. It is a side view which shows a stopper apparatus. It is a side view which shows operation | movement of a stopper apparatus. It is a side view which shows operation | movement of a stopper apparatus. It is sectional drawing which shows operation | movement of a stopper apparatus. It is a side view which shows operation | movement of a stopper apparatus. It is a side view which shows operation | movement of a stopper apparatus. It is a side view which shows another example of a stopper apparatus. It is a perspective view which shows the replacement | exchange operation | movement of an operation stick. It is a perspective view which shows the replacement | exchange operation | movement of an operation stick. It is a perspective view which shows the replacement | exchange operation | movement of an operation stick.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Head box 3 Slat 4 Bottom rail 10 Lifting code 11 Stopper device 14 Case 16 Stopper main body 17a First locking projection 17b Second locking projection 18 Moving groove (first locking hole)
19a, 19b Guide hole, guide groove, guide means (second locking hole)
20 Guide hole, guide groove, guide means (slide part)
21a, 21b Release means (locking piece)
22a, 22b Locking means (locking ridge)
23a, 23b Locking means (locking groove)

Claims (9)

By pulling the lifting / lowering cord from the head box, the slat can be pulled up, and by pulling the lifting / lowering cord into the head box, the slat can be lowered, and the lifting / lowering cord prevents the slat from falling by its own weight. In a horizontal blind suspended from the head box through a device,
The stopper device is supported so as to be movable in the front-rear direction of the head box, and includes a locking means for positioning at the moving end of the stopper device
Provided with the guide means for supporting the stopper device so that it can protrude and retract with respect to the head box at the moving end,
The horizontal blind slat lifting device according to claim 1, wherein the locking means positions the stopper device when the stopper device is immersed in the head box based on the guide means. The stopper device is
A case fixed to the head box;
A stopper body supported to be movable in the front-rear direction of the head box with respect to the case, and
The case and the stopper main body are provided with locking means for positioning the stopper main body at its moving end,
2. The horizontal blind slat lifting apparatus according to claim 1, wherein the case is provided with guide means for guiding the stopper main body so that the stopper body can protrude and retract with respect to the case.   The case is formed of a synthetic resin, and the locking means includes a locking protrusion formed on one of the case and the stopper main body and a locking groove formed on the other, and the locking protrusion is engaged. 3. The horizontal blind slat lifting apparatus according to claim 2, wherein said horizontal blind slat lifting apparatus is capable of being elastically engaged with a stop groove.   The case is provided with a first locking hole for rotatably supporting the stopper body, and a guide hole for guiding the stopper body to a positioning position at the moving end. The horizontal blind slat lifting device according to 2 or 3.   The stopper body is provided with first and second locking protrusions, the first locking protrusions are engaged with the first locking holes to support the stopper body movably, and the guide The hole is composed of first and second guide holes for holding the first and second locking projections at the moving end portion and guiding the stopper body in a state where the stopper main body is prevented from moving. The horizontal blind slat lifting apparatus according to claim 4.   The horizontal blind according to claim 5, wherein the first and second guide holes are provided on both sides of the case, and the stopper body is supported so as to be movable only in the front-rear direction along the sides. Slat lifting device. The horizontal blind slat according to any one of claims 1 to 6, wherein the stopper device is provided with a releasing means capable of releasing the positioning by the locking means from an upper opening of the head box. lift device.   8. The horizontal blind slat ascending and descending according to claim 7, wherein the releasing means is configured by extending a locking piece provided with either the locking protrusion or the locking groove upward. apparatus.   9. The horizontal blind slat lifting apparatus according to claim 8, wherein the locking piece is elastically deformed in a direction approaching the head box to disengage the stopper main body from the case.

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