JP6527435B2 - Vertical blind - Google Patents

Description

  The present invention relates to a vertical blind that enables pivoting slats suspended by a plurality of runners movably supported in a hanger rail via an angle adjustment shaft.

  In the vertical blind, slats are suspended from a plurality of runners movably supported in the hanger rails. A suspension shaft for suspending and supporting the slat is rotatably supported by the case of each runner, and the suspension shaft rotates via an angle adjustment shaft based on a predetermined operation. Thereby, angle adjustment of the slat supported by the suspension shaft is made.

  In addition, when the leading runner is transported to the deployment side based on a predetermined operation, the runners other than the leading runner are sequentially transported to the deployment side by the spacer connecting adjacent runners. Thus, the slats suspended from each runner are pulled out along the hanger rails. Conversely, when the leading runner is transported to the storage side, the other runners are pushed back to the storage side by the leading runner, whereby the slats are brought into the retracted state.

  By the way, there exists a thing which is comprised so that a hanger rail may curve partially or entirely in a horizontal direction as one type of such a vertical blind (for example, refer patent document 1). In the vertical blind disclosed in Patent Document 1, a plate-like spacer for connecting adjacent runners is vertically disposed, and a device for preventing enlargement of the runner and a hanger rail for housing the runner is made. .

JP, 2014-1597, A

  In the case of a vertical brace in which the hanger rail is partially or totally curved in the horizontal direction, as in Patent Document 1, the runner and the hanger rail that accommodates the runner are devised to smooth the movement of the runner. Can. By the way, since these runners are configured to be movable via one angle adjustment axis (also referred to as "tilt shaft") and to allow the suspension axis to be rotatable, this angle adjustment The shaft also bends in accordance with the curvature of the hanger rail, and the angle adjustment shaft itself is configured to be rotatable.

  However, in such a structure in which one angle adjustment shaft is bent according to the curvature of the hanger rail, a load of bending stress is always applied to the angle adjustment shaft, so the curvature radius (curvature radius) of the hanger rail is at least a certain degree There is a problem that it can not be set small.

  In addition, the resistance between the angle adjustment axis and the runner also increases, and the load of the slat angle adjustment operation tends to increase.

  It is an object of the present invention to provide a vertical blind that can increase the freedom of the radius of curvature of the hanger rail, enable smaller radius, and reduce the load of the slat angle adjustment operation. It is in.

  The vertical blind according to the present invention is a vertical blind capable of pivotally supporting a slat suspended by a plurality of runners movably supported in a hanger rail via an angle adjustment shaft, and has a curved portion. A hanger rail, and a shaft member of a predetermined length are connected by a shaft connection member, and includes an angle adjustment shaft arranged along the hanger rail.

  Further, in the vertical blind according to the present invention, the one shaft member connected is connected by the shaft connecting member so as to be rotatable in two axial directions orthogonal to the other shaft member. .

  In the vertical blind according to the present invention, the runner is configured to be movable across a plurality of shaft members connected by the shaft connection member.

  Further, in the vertical blind according to the present invention, the connecting piece at the end of the shaft member connected by the shaft connecting member so that the slat supported by the runner supported on the shaft connecting member can be pivoted. A tilt groove formed in the main body of the shaft member is formed to extend.

  According to the present invention, in a vertical blind having a curved hanger rail, the freedom with respect to the radius (curvature radius) of the curvature of the hanger rail can be increased, the radius can be further reduced, and the slat angle adjustment operation can be performed. The load can be reduced.

It is a front view which shows schematic structure of the vertical blind of one Embodiment by this invention. It is a top view which shows the structure in the hanger rail in the vertical blind of one Embodiment by this invention. It is a sectional view showing roughly the structure of the hanger rail in the vertical type blind of one embodiment by the present invention, and a runner. It is a disassembled perspective view which shows roughly the structure of the angle adjustment axis | shaft in the vertical blind of one Embodiment by this invention. (A), (b) is the front view and sectional drawing of the shaft member which comprises the angle adjustment axis | shaft in the vertical blind of one Embodiment by this invention, respectively. FIG. 8 is a top perspective view showing the movement of the angle adjustment axis in the vertical blind of one embodiment according to the present invention.

  Hereinafter, a vertical blind according to an embodiment of the present invention will be described with reference to the drawings.

(Vertical blinds)
FIG. 1 is a front view showing a schematic configuration of a vertical blind according to an embodiment of the present invention. As shown in FIG. 1, in the vertical blind of this embodiment, a large number of runners 2 are movably supported in the hanger rail 1 in the rail longitudinal direction, and slats 3 are suspended and supported from the respective runners 2. . The hanger rail 1 is shaped so as to be horizontally curved over the entire length (see FIG. 2).

  A transfer cord 5 and an open / close cord 6 are hanging down on the operation device 4 provided at one end of the hanger rail 1. By the operation of the transfer cord 5, each runner 2 and the slat 3 are transferred in the rail longitudinal direction. The angle adjustment shaft 10 according to the present invention is supported between the operation device 4 provided at one end of the hanger rail 1 and the shaft support 9 provided at the other end. A plurality of short shaft members 21 of a predetermined length are connected by a shaft connection member 20 (see FIG. 2). Although the details of the angle adjusting shaft 10 will be described later, the angle adjusting shaft 10 is rotated by the operation of the opening / closing cord 6, and the slats 3 supported to be suspended from each runner 2 are rotated by this rotation. There is.

  As shown in FIG. 2, in the transfer operation of the slat 3, when the leading runner 2a is attached to the transfer belt 7 orbiting in the hanger rail 1 based on the operation of the transferring cord 5, the leading runner 2a is transferred, Subsequent runners 2 are sequentially pulled out or pushed back at equal intervals.

  In FIG. 1 and FIG. 2, when the leading runner 2a is transferred to the left end side of the hanger rail 1, the following runners 2 are sequentially pulled out at equal intervals via the spacers 8 shown in FIG. Is pulled out to the left end side of the hanger rail 1.

  Further, when the leading runner 2a is transferred to the right end side of the hanger rail 1, the following runners 2 are sequentially pushed back to the right end side of the hanger rail 1 by the leading runner 2a, and the slat 3 is folded to the right end side of the hanger rail 1 Be The leading runner 2 a has a structure in which a belt fixing member 32 is attached to the runner 2. The belt fixing member 32 is provided with mounting portions 33 positioned on both sides in the moving direction of the runner 2 constituting the leading runner 2a, and mounting members mounted on both ends of the transfer belt 7 on the bottom side of the pair of mounting portions 33. 7a is fixed respectively.

  The operating device 4 has a gear housing 41 fixed to one end of the hanger rail 1 and provided with a transfer pulley 42 and an open / close pulley 43 so as to project laterally from the gear housing 41 in the longitudinal direction. A transfer cord 5 and an open / close cord 6 are hooked on the transfer pulley 42 and the open / close pulley 43, respectively. The transfer pulley 42 and the opening and closing pulley 43 are covered with the cover 41 a attached to the gear housing 41 at the upper side and both sides in the width direction.

  The open / close pulley 43 is integrally formed with a support shaft 44 rotatably supported by the gear housing 41. The angle adjustment shaft 10 (i.e., the shaft member 21) is non-rotatably fitted to the support shaft 44. Thus, the support shaft 44 and the angle adjustment shaft 10 can be integrally rotated in the forward and reverse directions.

  The transfer pulley 42 is configured to be integrally rotatable with a drive gear 45 axially supported by the gear housing 41, and the drive gear 45 meshes with a belt pulley 46 rotatably supported by the gear housing 41. The belt pulley 46 is meshed with the transfer belt 7, and the transfer belt 7 circulates in the hanger rail 1 by the rotation of the belt pulley 46. In addition to the belt pulley 46, a belt pulley 47 meshing with the transfer belt 7 is rotatably supported by the gear housing 41.

  FIG. 3: is sectional drawing which shows roughly the structure of the hanger rail in the vertical blind of this embodiment, and a runner. In the case 11 of the runner 2, roller shafts 22 a and 22 b extending in the horizontal direction (width direction) are formed on both sides thereof. A roller 24 (engaging portion) is rotatably supported by each roller shaft 22a, 22b, and a rib 25 is projected inward from the width direction side wall 1a of the hanger rail 1 as a guide rail 26 (guide portion) As shown in FIG. 1, the hanger rail 1 is moved in the longitudinal direction.

  Below the guide rails 26, there is formed a belt accommodating portion 31 in which the transfer belt 7 which can be wound around in the hanger rail 1 is accommodated. The transfer belt 7 is attached to the leading runner 2a.

  The case 11 has a spacer holding portion 27 formed on the side surface of the holding wall 18 on the roller shaft 22 b side at the upper portion of the extension portion 23. The spacer holding portion 27 has locking claws 28 respectively formed on the upper end of the holding wall 18 and the upper surface of the extending portion 23. A long plate-like spacer 8 is vertically disposed between the locking claw 28 and the side surface of the holding wall 18, that is, disposed parallel to the vertical direction (vertical direction) of the runner 2, and the locking claw The spacer 8 is held by the numeral 28 so as not to come off the spacer holding portion 27 toward the roller shaft 22b. Further, the fixed end 8a of the base end side of the spacer 8 is fixed to the spacer holding portion 27 of the runner 2, and the open end 8b of the tip end side extends to the adjacent runner 2 side on the front side (front side) The spacer holding portion 27 of the runner 2 is inserted and held. That is, the spacer 8 is fixed to one of the two adjacent runners 2 and is held movably relative to the other runner 2 in the moving direction of the runners 2.

  The open end 8 b of the spacer 8 is configured to be able to be locked with respect to the spacer holding portion 27 in the direction in which the runners 2 are separated from each other. Thus, when the distance between the runners 2 becomes a predetermined distance, the spacer 8 is locked without coming off the spacer holding portion 27 and the distance between the runners 2 is maintained at the distance. The runner 2 has a pair of side walls 12 opposed to each other in the moving direction of the runner 2 (longitudinal direction of the hanger rail 1) from the central portion of the case 11 to one side. Bearing holes formed in each side wall 12 The worm 13 is rotatably supported at (not shown).

  At a central portion of the case 11, a cylindrical bearing portion 15 extending downward from a bottom portion 14 connecting lower end portions of the pair of side walls 12 is formed. A suspension shaft 16 formed of a synthetic resin having elasticity is rotatably supported on the bearing portion 15 with its axis centering in the vertical direction, and a worm wheel 17 meshing with the worm 13 is integrated with the upper portion of the suspension shaft 16 It is rotatably fitted. A slat 3 is suspended and supported by the lower end portion of the suspension shaft 16.

  A holding wall 18 connecting a pair of side walls 12 is formed on the side of the worm wheel 17 opposite to the worm 13. A housing 19 is formed on the inner surface of each side wall 12 and the holding wall 18 along the outer circumferential surface of the worm wheel 17, and the worm wheel 17 is rotatably supported in the housing 19.

  In this embodiment, shaft members 21 of a predetermined length in which four tilt grooves 211 extend in the longitudinal direction are connected by the shaft connection member 20 to form the angle adjustment shaft 10, and the center portion of the worm 13 is Four ridges 131 protruding in the center direction are formed. Then, the angle adjustment shaft 10 is relatively movable in the axial direction at the central portion of the worm 13 so that each tilt groove 211 of the angle adjustment shaft 10 engages with each convex portion 131 of the worm 13 and relative rotation It is penetrated impossible. The respective convex portions 131 of the tilt grooves 211 and the worm 13 are formed point-symmetrically with respect to the central axis, but they need not necessarily be arranged symmetrically. Therefore, when the angle adjustment shaft 10 is rotated, the suspension shaft 16 is rotated via the worm 13 and the worm wheel 17.

  By the way, between the operating device 4 provided at one end of the hanging hanger rail 1 and the shaft support 9 provided at the other end, according to the curvature of the hanger rail 1 with one angle adjusting shaft as in the conventional technique. When it is configured to be bent, bending stress is always applied to the angle adjustment axis of the conventional technique. For this reason, there is a problem that the radius of curvature (radius of curvature) of the hanger rail 1 can not be set smaller than a certain degree, and the resistance between the angle adjustment axis and the runner is also increased. There is also a problem that the load also increases.

  Therefore, as shown in FIG. 2, the angle adjustment shaft 10 according to the present invention is configured by connecting a short predetermined length shaft member 21 by the shaft connecting member 20 (see FIG. 2). Hereinafter, more specifically, with reference to FIG.4 and FIG.5, the example of a structure of the angle adjustment axis | shaft 10 in the vertical blind of this embodiment is demonstrated in detail.

(Angle adjustment axis)
FIG. 4 is an exploded perspective view schematically showing the structure of the angle adjustment shaft 10 in the vertical blind of the present embodiment. Moreover, Fig.5 (a) is a front view of the shaft member 21 which comprises the said angle adjustment axis | shaft 10, FIG.5 (b) is the sectional view.

  As shown in FIG. 4, the angle adjustment shaft 10 according to the present invention is connected by a shaft connecting member 20 to connect a substantially cylindrical short predetermined length axial member 21 in which four tilt grooves 211 extend in the longitudinal direction. Is configured. The four tilt grooves 211 in the present embodiment are preferably formed so as to be point-symmetrical with respect to the central axis of the shaft member 21 as a preferred example, but as described above, they need to be arranged symmetrically. There is no.

  The shaft member 21 has a pair of connection pieces 21a and 21b protruding in a substantially parallel and bifurcated plate shape at one end in the longitudinal direction of the main body. Further, also at the other end of the main body of the shaft member 21 in the longitudinal direction, the pair of connection pieces 21c and 21d project in a substantially parallel and bifurcated plate shape. The pair of connecting pieces 21 a and 21 b and the pair of connecting pieces 21 c and 21 d are orthogonal to each other and project in the longitudinal direction so as not to exceed the outermost diameter of the main body of the shaft member 21. A connecting hole 210 is provided at the center of each of the connecting pieces 21a, 21b, 21c and 21d (see FIG. 5 (b)), and shafts are provided on both sides of each of the connecting pieces 21a, 21b, 21c and 21d. The tilt groove 211 formed in the main body of the member 21 is formed to extend (see FIG. 5A).

  The shaft connecting member 20 has a substantially cylindrical main body, and a pair of cylindrical shafts 20a and 20b are formed in the vicinity of one end of the main body in a straight line extending radially outward of the substantially cylindrical main body. ing. Further, in the vicinity of the other end of the main body of the shaft connecting member 20, a pair of cylindrical shafts 20c and 20d are formed so as to project on a straight line in the radial outward direction of the substantially cylindrical main body. The pair of cylindrical shafts 20a and 20b and the pair of cylindrical shafts 20c and 20d are orthogonal to each other.

  The pair of connection pieces 21a and 21b of the shaft member 21 can connect the connection holes 210 respectively formed in the connection pieces 21a and 21b and the pair of cylindrical shafts 20a and 20b of the shaft connection member 20 by elastic deformation. It is made to be relatively rotatable. Similarly, the pair of connecting pieces 21c and 21d of the shaft member 21 is formed by connecting holes 210 formed in the connecting pieces 21c and 21d by elastic deformation, and a pair of cylindrical shafts 20c and 20d of the shaft connecting member 20. Can be connected, and can be rotated relative to each other. Then, once the shaft member 21 and the shaft connecting member 20 are connected, they are not easily removed unless they are removed intentionally. At this time, in a state where two shaft members 21 are connected by one shaft connecting member 20, each cylindrical shaft 20a, 20b, 20c, 20d of the shaft connecting member 20 is outside of each connecting piece 21a, 21b, 21c, 21d. It does not project towards one side.

  In this manner, two shaft members 21 can be connected by one shaft connecting member 20, and by connecting another shaft member 21 using a plurality of shaft connecting members 20, a desired length can be obtained. The angle adjustment shaft 10 can be configured.

  In particular, the runner 2 including the leading runner 2 a can move across the two shaft members 21 connected by the shaft connection member 20. For this reason, by preparing a plurality of types of lengths of the shaft member 21 and connecting them according to the application, it is possible to finely set the entire length of the angle adjustment shaft 10 or to make a plurality of types of radius (curvature radius). The angle adjustment shaft 10 can also be configured according to the radius of the hanger rail 1 having a complex curvature.

  Further, the two shaft members 21 connected by the shaft connection member 20 can transmit the rotation to the other shaft member 21 when the connected one shaft member 21 rotates. Then, when the angle adjustment shaft 10 in which the four tilt grooves 211 are formed is rotated, the convex portions 131 of the worms 13 in the runners 2 (including the leading runner 2a) are engaged with the tilt grooves 211. The rotation of the worm 13 is transmitted to the worm wheel 17 to rotate the suspension shaft 16, which causes the slat 3 to rotate. In particular, even when the runner 2 is positioned on the shaft connection member 20, the tilt grooves 211 formed in the main body of the shaft member 21 extend on both sides of each of the connection pieces 21a, 21b, 21c and 21d. As it is formed, the rotation of the angle adjustment shaft 10 can be transmitted to the hanging shaft 16 of the runner 2.

  Then, in the two shaft members 21 connected by the shaft connection member 20, one shaft member 21 can be rotated in two axial directions orthogonal to the other shaft member 21, and therefore, it is added to the angle adjustment shaft 10. The load of bending stress can be greatly reduced, the degree of freedom with respect to the radius of curvature (curvature radius) of the hanger rail 1 can be increased, and the radius can be smaller than in the prior art.

  Further, in the two shaft members 21 connected by the shaft connecting member 20, one shaft member 21 can be rotated in two axial directions orthogonal to the other shaft member 21, so The resistance to the runner 2 is also greatly reduced, and the load of the angle adjustment operation of the slat 3 can also be reduced.

  The operation when the angle adjustment shaft 10 is configured by the plurality of shaft members 21 connected by the plurality of shaft connection members 20 will be described with reference to FIGS. 1, 2 and 6.

  First, as shown in FIGS. 1 and 2, when the transfer pulley 42 is rotated based on the operation of the transfer cord 5, the rotation is transmitted to the transfer belt 7 through the drive gear 45 and the belt pulley 46. The transfer belt 7 circulates in the hanger rail 1. At this time, the leading runner 2 a fixed to the transfer belt 7 moves in the hanger rail 1 integrally with the transfer belt 7.

  When each slat 3 is expanded from the state stored in one end side of the hanger rail 1 to the other end side, first, the leading runner 2a is transferred to the expansion side based on the operation of the transfer cord 5. Then, when the distance between the leading runner 2a and the runner 2 at the rear stage becomes a predetermined distance, the open end 8b of the spacer 8 fixed to the runner 2 at the rear stage is engaged with the spacer holding portion 27 of the front runner 2a The runner 2 of the latter stage is transferred to the deployment side in a manner to be drawn to the leading runner 2 a via the spacer 8.

  The runners 2 further downstream of the runners 2 are similarly sequentially transferred to the deployment side by the spacer 8, whereby the slats 3 supported by the runners 2 for suspension are pulled out along the hanger rails 1.

  When the slat 3 is stored from the unfolded state, first, the leading runner 2a is transferred to the storage side based on the operation of the transfer code 5. At this time, since the open end 8b of the spacer 8 is not fixed to the runners 2, the runners 2 of the latter stage are sequentially pushed back to the storage side by the leading runner 2a, whereby the storage state in which the slats 3 are folded It becomes.

  On the other hand, when the open / close pulley 43 and the shaft member 21 on the operation device 4 side are rotated based on the operation of the open / close cord 6, the rotation is transmitted to the other shaft member 21 connected by the shaft connection member 20 (see FIG. 6). Then, by the rotation of each shaft connecting member 20, the hanging shaft 16 is rotated via the worm 13 and the worm wheel 17 in each runner 2 (including the leading runner 2a). Thereby, the slat 3 supported by the hanging shaft 16 is opened and closed.

  And since each shaft member 21 connected by the shaft connection member 20 is rotatable in two axial directions orthogonal to each other with respect to the adjacent shaft member 21, as shown in FIG. Even when the rotation of the shaft connection member 20 or the shaft member 21 is significantly reduced, the resistance between the angle adjustment shaft 10 and the runner 2 is also greatly reduced, so that smooth operation is achieved. The rotation is possible, and the load of the angle adjustment operation of the slat 3 can also be reduced.

  Although the present invention has been described above by giving an example of a specific embodiment, the present invention is not limited to the above-described embodiment and examples, and various modifications can be made without departing from the technical concept thereof. is there. For example, although a specific runner structure has been described as an example, it may have any structure as long as the angle adjustment axis according to the present invention can be used. In the embodiment described above, the shaft member 21 having the four tilt grooves 211 and the runner 2 corresponding thereto have been described as an example, but a tilt of two, three, or five or more It is also possible to use the shaft member 21 having the groove 211 and the runner 2 corresponding thereto.

  According to the present invention, since the freedom with respect to the radius of curvature (radius of curvature) of the hanger rail can be increased, it is useful for the application of the vertical blind having the hanger rail having the curved portion.

Reference Signs List 1 hanger rail 2 runner 2a top runner 3 slat 10 angle adjustment shaft 20 shaft connecting member 21 shaft member 21a, 21b, 21c, 21d connecting piece 210 connecting hole 211 tilt groove 21a, 21b, 21c, 21d cylindrical shaft

Claims (4)

A vertical blind for pivotably supporting a slat suspended by a plurality of runners movably supported in a hanger rail via an angle adjustment shaft, comprising:
A hanger rail having a curved portion;
An angular adjustment shaft which is constituted by connecting a shaft member of a predetermined length by a shaft connection member and which is arranged along the hanger rail;
Vertical blind characterized by having.   The vertical blind according to claim 1, wherein the one shaft member connected is connected by the shaft connecting member so as to be rotatable in two axial directions orthogonal to the other shaft member. .   The vertical blind according to claim 1, wherein the runner is configured to be movable across a plurality of shaft members connected by the shaft connection member.   The connecting piece of the end of the shaft member connected by the shaft connecting member is formed on the main body of the shaft member so that the slat supported by the runner supported on the shaft connecting member can be pivoted. The vertical blind according to any one of claims 1 to 3, wherein the tilt groove is formed to extend.