JP2023159958A - Adjusting device and blind - Google Patents

Abstract

To provide an art capable of easily adjusting a length of a cord, despite having a simple configuration with a small number of components.SOLUTION: An adjusting device 140 comprises: a holder 150 attached to a bottom rail 170, and having a plurality of first regulation parts 151 provided in a longitudinal direction of the bottom rail; and an adjustment member 160 movably provided in the longitudinal direction of the bottom rail while being attached to the holder, and having a first engagement part 161 that can be engaged with the first regulation part. A lifting cord is connected to the adjustment member such that a portion thereof is pulled in the longitudinal direction, correspondingly to a movement of the adjustment member in the longitudinal direction. The adjustment member being moved in the longitudinal direction allows a hanging length of the lifting cord to be adjusted. When the movement of the adjustment member in the longitudinal direction is regulated by the first engagement part becoming engaged with any of the first regulation parts, the hanging length of the lifting cord can be maintained.SELECTED DRAWING: Figure 2

Description

The present invention relates to an adjusting device and a blind that adjust the hanging length of a cord arranged along a shielding material.

As a conventional adjustment device and blind that adjust the hanging length of a cord arranged along a shielding material, there is one disclosed in Japanese Patent Application Laid-Open No. 2017-172176 (Patent Document 1). The document describes a shield suspended from the head rail, a bottom rail provided at the bottom end of the shield, a cord suspended from the head rail, and a cord fixed within the bottom rail with the lower end of the cord attached. An adjusting device and a blind equipped with a cord length adjustment mechanism capable of adjusting the length of the cord are disclosed. The cord length adjustment mechanism includes a fixing member that is fixed within the bottom rail and has an insertion part through which the lower end of the cord can be inserted and a locking part that can lock the lower end of the cord, and an insertion part of the fixing member. A movable member that can be moved in the longitudinal direction of the bottom rail with respect to the fixed member, and a movable member that is locked so that it cannot be moved relative to the fixed member. It has a locking member.

According to this, the length of the cord can be adjusted simply by moving the movable member around which the cord is wound in the longitudinal direction of the bottom rail.

Japanese Patent Application Publication No. 2017-172176

However, in the conventional adjustment device and blind as disclosed in Patent Document 1, in order to fix the length of the cord at the adjusted position, a locking member that locks the movable member immovably with respect to the fixed member is required. It is necessary to provide it separately. Therefore, there was a problem that the number of parts increased and the structure became complicated.

The present invention was made in view of these problems, and its purpose is to provide a technology that allows the length of the cord to be easily adjusted while having a simple structure with a small number of parts. It's about doing.

In order to solve the above problems, according to a first aspect of the present invention, a cord is suspended along a shielding material suspended from a head box, a rail material connected to a lower end of the shielding material, An adjustment device for adjusting the hanging length of the cord in a blind comprising: a holder attached to the rail material and having a plurality of first regulating portions provided along the longitudinal direction of the rail material; an adjustment member that is provided so as to be movable in the longitudinal direction of the rail material while attached to a holder and has a first locking part that can be locked to the first restriction part, and the cord is , a part of the rail material is connected to the adjustment member so as to be pulled in the longitudinal direction according to the movement of the adjustment member in the longitudinal direction of the rail material, and the adjustment member is connected to the rail material in the longitudinal direction. By being moved, the hanging length of the cord can be adjusted, and the first locking portion is locked with one of the first regulating portions, and the adjusting member is moved in the longitudinal direction of the rail material. An adjustment device is provided, characterized in that the hanging length of the cord can be maintained by regulating the length of the cord.

According to this configuration, the length of the cord can be easily adjusted even though the cord has a simple structure with a small number of parts consisting only of a holder and an adjustment member. Therefore, since the hanging length of the cord can be easily adjusted and held, it is possible to easily adjust the height of the blind and the inclination of the rail material.

The present invention can be applied in various ways. For example, the adjustment member is provided so as to be movable in the longitudinal direction of the rail material while attached to the holder, and to be tiltable about the transverse direction of the rail material as an axis. When one side is tilted in a certain unlocking direction and the first locking part is unlocked from the first regulating part, the rail material can be moved in the longitudinal direction, and the rail material can be moved in the longitudinal direction. The movement of the rail material in the longitudinal direction may be restricted by tilting in the other locking direction so that the first locking part is locked by the first regulating part. According to this configuration, by tilting the adjustment member, the adjustment member can be moved to adjust the hanging length of the cord, and the movement of the adjustment member can be restricted to hold the cord in a position where the hanging length is adjusted. You can easily switch between the two states.

Further, the first regulating portion is provided in plurality along the longitudinal direction of the rail material so as to face each other in the transverse direction of the rail material at the upper end portion of the holder opened upward, and A pair of stop portions are formed at both ends of the adjustment member in the transverse direction of the rail material, and the holders are arranged to face each other in the transverse direction of the rail material below the first regulating portion. The adjustment member further includes a groove provided therein, a part of the groove extending in the longitudinal direction of the rail material, and the adjustment member extending in the lateral direction of the rail material at a position different from the first locking part. has a pair of protrusions at both ends thereof, and is attached to the holder so that the pair of protrusions can slide in the groove, so that the rail member can be moved in the longitudinal direction of the rail material, and It may be made to be tiltable about the convex portion. According to this configuration, by tilting the adjustment member, the adjustment member can be moved to adjust the hanging length of the cord, and the movement of the adjustment member can be restricted to hold the cord in a position where the hanging length is adjusted. You can easily switch between the two states. Furthermore, since the pair of convex portions slide in the groove, the adjustment member can be moved smoothly, and the adjustment member can be prevented from detaching from the holder during movement.

Further, when the first locking portion is locked with the first regulating portion, the adjustment member restricts movement of the rail material in the longitudinal direction with respect to the holder, and The tilting movement about the lateral direction of the axis may be restricted. According to this configuration, since the adjustment member can be fixed to the holder so as not to move or tilt, it is possible to reliably hold the adjustment position so that the adjustment position does not shift after adjusting the hanging length of the cord.

Further, the holder further includes a plurality of second regulating parts provided in the longitudinal direction of the rail material at the bottom, and the adjusting member engages with the second regulating part by being tilted in the engaging direction. The device further includes a second locking portion protruding so as to be lockable, and the first locking portion is locked to the first restriction portion, and the second locking portion is locked to the second restriction portion. The holder may be fixed to the holder in a state where it is held in place. According to this configuration, by locking the adjustment member to the holder at two locations, the first locking portion and the second locking portion, the adjustment position is securely held so that it does not shift even if strong tension is generated in the cord. can do.

The holder also includes a first insertion hole formed at the upper end of the second wall part perpendicular to the longitudinal direction of the rail material, and a second insertion hole formed below the first insertion hole. The adjustment member further includes a cord turning part that turns the cord, and the cord is introduced into the holder through the first insertion hole, rotated by the cord turning part, and then rotated in the first insertion hole. The second insertion hole may be arranged so as to be led out of the holder, and the end portion may be locked so as not to be pulled out from the second insertion hole. According to this configuration, the hanging length of the cord can be adjusted by twice the amount of adjustment in the longitudinal direction of the adjustment member, so a sufficient amount of adjustment can be secured without increasing the size of the adjustment device. I can do it.

Further, the first regulating portions may be formed on the holder at a predetermined pitch along the longitudinal direction of the rail material. According to this configuration, the hanging length of the cord can be adjusted while recognizing the amount of adjustment, so that fine adjustment of the hanging length can be easily performed.

Further, the adjustment member may include a base portion for operating the tilting motion, and a portion of the base portion may include a tilting operation auxiliary opening. According to this configuration, not only can the adjustment member be raised by inserting a finger into the tilting operation auxiliary opening, but also a jig such as a flathead screwdriver can be inserted into the tilting operation auxiliary opening to raise the adjusting member. , even if it is difficult to operate with a finger, it can be easily operated.

Further, the adjustment member has a base portion for operating tilting, and when the first locking portion is locked to the first regulating portion, a part of the base portion is attached to the holder. It may also be made to protrude from the end in the longitudinal direction. According to this configuration, a portion of the base portion protrudes from the end of the holder in the longitudinal direction, making it easier to grasp the end of the adjustment member with fingers. Therefore, even if the adjustment member is small, it can be easily operated with a finger.

Furthermore, according to a second aspect of the present invention, there is provided a blind characterized by comprising the adjustment device according to the first aspect of the present invention.

According to this configuration, the length of the cord of the blind can be easily adjusted even though the blind has a simple structure with a small number of parts consisting only of a holder and an adjusting member.

The invention further includes a mounting plate for connecting a lower end of the shielding material to the rail material, and the adjustment member, when attached to the rail material, extends through an opening formed in a part of the mounting plate. It may be operably exposed through. According to this configuration, the adjustment member can be easily operated.

According to the present invention, it is possible to provide a technique that allows the length of the cord to be easily adjusted even though it has a simple structure with a small number of parts. Other effects of the present invention will also be explained in the detailed description below.

FIG. 1 is a front view showing the overall configuration of a pleated screen 100 according to a first embodiment. It is a perspective view of adjustment device 140 vicinity. 2A and 2B are diagrams for explaining the adjustment device 140, in which (a) is an exploded perspective view and (b) is a perspective view. 2A and 2B are diagrams for explaining the adjustment device 140, in which (a) is a side view and (b) is a front view. FIG. 4(a) is a sectional view taken along line AA in FIG. 4(a). 4A is a sectional view taken along line BB in FIG. 4(a). FIG. 4 is a perspective view for explaining the operation of the adjustment device 140, in which (a) shows a state in which the adjustment member 160 is fixed to the holder 150, and (b) shows a state in which the adjustment member 160 and the holder 150 are disengaged; (c) shows a state in which the adjustment member 160 is slid, and (d) shows a state in which the adjustment member 160 is engaged with the holder 150. 3A and 3B are cross-sectional views for explaining the operation of the adjustment device 140, in which (a) shows a state in which the adjustment member 160 is fixed to the holder 150, and (b) shows a state in which the adjustment member 160 and the holder 150 are disengaged; (c) shows a state in which the adjustment member 160 is slid, and (d) shows a state in which the adjustment member 160 is engaged with the holder 150. It is a diagram for explaining the process of assembling the adjustment device 140 to the bottom rail 170, and is a perspective view showing a state before assembly. It is a diagram for explaining the process of assembling the adjustment device 140 to the bottom rail 170, and is a perspective view showing the assembled state. It is a figure which shows the state in which the hanging length of the lifting cord 130 is adjusted, (a) shows the case where the hanging length is the longest, and (b) shows the case where the hanging length is the shortest. 7 is a perspective view showing a first modification of the adjustment device 140. FIG. 4(a) shows a second modification of the adjustment device 140, and corresponds to the BB cross-sectional view of FIG. 4(a). FIG.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Note that, in this specification and the drawings, components having substantially the same functional configurations are designated by the same reference numerals and redundant explanation will be omitted. In the following description, a pleated screen will be used as an example of a blind, but the present invention is also applicable to honeycomb screens, horizontal blinds, and the like.

(First embodiment)
The overall configuration of a pleated screen 100 (blind) according to the first embodiment will be described with reference to FIGS. 1 and 2. FIG. 1 is a front view showing the overall configuration of a pleated screen 100 according to this embodiment. FIG. 2 is a perspective view of the vicinity of the adjustment device 140. The pleated screen 100 includes an adjustment device 140 that adjusts the hanging length of the lifting cord 130 (cord) hanging from the head box 120 in order to lift and lower the suspended screen 110 (shielding material). Each configuration of this embodiment will be described in detail below.

(Screen 110)
The screen 110 (shielding material) is a shielding material that closes or opens an opening. As shown in FIG. 1, the screen 110 is suspended with its upper end connected to the head box 120. The screen 110 is formed by a plurality of pleats that can be folded and unfolded in the vertical direction, and each pleat is formed with an insertion hole 112 through which the lifting cord 130 is inserted. A lower end of the screen 110 is connected to a bottom rail 170.

As shown in FIG. 1, the head box 120 is configured in a long box shape, and has a rotating member 122 inside which is wound around the lifting cord 130 and rotates the direction in which the lifting cord 130 is arranged. , are provided at two locations in the longitudinal direction. Furthermore, a stopper 124 is provided at one end of the head box 120 to restrict movement of the lifting cord 130. The head box 120 is fixed to a window frame, wall, etc. (not shown) by a bracket 126.

As shown in FIG. 1, the lifting cord 130 has one end connected to the bottom rail 170, and the other end inserted into the insertion holes 112 of the screen 110 and introduced into the head box 120. The lifting cord 130 introduced into the head box 120 is turned by the turning member 122. The lifting cords 130 rotated in this manner are routed along the longitudinal direction of the head box 120, led out to the outside via the stopper 124 at one end of the head box 120, and connected to the knobs 132, respectively. An auxiliary cord 134 hangs down from the knob 132. The lower end of the auxiliary cord 134 is connected to the bottom rail 170 via a joint 136.

As shown in FIG. 2, the bottom rail 170 has an elongated box shape with an opening 172 formed at the top. A fitting portion 174 into which the adjustment device 140 is fitted is formed in the bottom rail 170 over the entire longitudinal length of the front and lower portions. A mounting plate 176 is provided for mounting the lower end of the screen 110 to the bottom rail 170. The lower end of the screen 110 is superimposed on the lower surface of the mounting plate 176, and the screen 110 is joined by staples (not shown).

The mounting plate 176 is inserted into the bottom rail 170 together with the lower end of the screen 110, and is arranged so that both edges in the short direction abut against the inner upper surface of the bottom rail 170. As a result, the upper part of the bottom rail 170 and the mounting plate 176 are brought into engagement, and the lower end of the screen 110 is connected to the bottom rail 170. Further, as a result, the opening 172 is closed by the mounting plate 176. The mounting plate 176 is formed with an exposure port 176a (opening) that exposes the top surface of the adjustment device 140 at a position corresponding to the adjustment device 140 installed in the bottom rail. Adjustment device 140 is operable via exposure port 176a.

(Adjusting device 140)
The adjustment device 140, which is a characteristic configuration of this embodiment, will be explained with reference to FIGS. 3 to 6. FIG. 3 is a diagram for explaining the adjustment device 140, in which (a) is an exploded perspective view and (b) is a perspective view. FIG. 4 is a diagram for explaining the adjustment device 140, in which (a) is a side view and (b) is a front view. FIG. 5 is a sectional view taken along line AA in FIG. 4(a). FIG. 6 is a sectional view taken along line BB in FIG. 4(a).

The adjustment device 140 is a device for adjusting the hanging length of the lifting cord 130. As shown in FIG. 2, the adjustment device 140 includes a holder 150 that is attached to the bottom rail 170 and has a plurality of first regulating portions 151 provided along the longitudinal direction of the bottom rail 170, and a holder 150 that is attached to the holder 150. The adjusting member 160 is provided so as to be movable in the longitudinal direction of the bottom rail 170 in a state in which the adjusting member 160 is movable in the longitudinal direction of the bottom rail 170 and has a first locking part 161 that can be locked to the first regulating part 151. The lifting cord 130 is connected to the adjusting member 160 so that a part thereof is pulled in the longitudinal direction of the bottom rail 170 as the adjusting member 160 moves in the longitudinal direction of the bottom rail 170. The hanging length of the lifting cord 130 can be adjusted by moving the adjustment member 160 in the longitudinal direction, and the first locking part 161 is locked with one of the first regulating parts 151 to move the adjustment member 160 in the longitudinal direction. By restricting movement, the hanging length can be maintained.

(Holder 150)
As shown in FIG. 3, the holder 150 has a substantially rectangular parallelepiped shape with an upward opening, and a pair of first walls 152 facing each other across the opening extend in the longitudinal direction of the bottom rail 170. It is arranged within the bottom rail 170 so as to extend along the bottom rail 170. As shown in FIG. 3(a), the pair of first wall portions 152 are formed with a pair of projecting portions 152a projecting in the front-rear direction and upward direction. The projecting portion 152a projects upward from the first wall portion 152 by approximately the same height as the height of a base portion 165 of an adjustment member 160, which will be described later. Therefore, as shown in FIG. 3(b), when the adjustment member 160 is fixed to the holder 150 and the base portion 165 is placed on the first wall portion 152, it is configured to be flush with the first wall portion 152.

As shown in FIG. 3, the pair of overhanging parts 152a are provided with a plurality of first regulating parts 151 along the longitudinal direction so as to face each other at the upper ends of the pair of overhanging parts 152a. As shown in FIG. 4B, the first regulating portion 151 includes a recess 151a that locks the first locking portion 161 of the adjustment member 160, and a guide portion that guides the first locking portion 161 to the recess 151a. 151b. The recess 151a is formed into a fan shape with a central angle larger than 180 degrees. The guiding portion 151b is formed in the shape of an inclined surface whose interval increases from the recessed portion 151a toward the upper end.

As shown in FIG. 3A, a pair of grooves 153 for guiding the movement of the adjustment member 160 are formed to face each other below the first regulating portion 151 of the pair of first walls 152. As shown in FIG. The pair of groove portions 153 have a substantially L-shape, with one side (part) extending in the longitudinal direction below the first regulating portion 151 and the other side extending below the first wall portion 152. An insertion portion 153a is formed that extends to the upper end and is open at the top.

Further, the holder 150 further includes a plurality of second restricting portions 155 provided in the longitudinal direction of the bottom rail 170 at the bottom portion 154, as shown in FIG. 3(a). The second restricting portion 155 is constituted by a plurality of projections and depressions formed in the longitudinal direction of the bottom portion 154 . As shown in FIG. 5, the second regulating portion 155 includes an inclined surface 155a that is inclined in the longitudinal direction of the bottom portion 154, a vertical surface 155b extending from the apex of the inclined surface 155a to the bottom portion 154, and the bottom portion 154. .

As shown in FIG. 3A, the holder 150 has a first insertion hole 157 through which the lifting cord 130 is inserted into a second wall 156 that is perpendicular to the first wall 152 (the longitudinal direction of the bottom rail 170). and a second insertion hole 158. The second wall portion 156 is formed at the same height as the overhang portion 152a. The first insertion hole 157 is a substantially L-shaped hole that extends downward from the upper end of the second wall portion 156 and penetrates into the inside of the holder 150, as shown in FIG. Therefore, the elevating cord 130 is inserted into the first insertion hole 157 in the hanging direction, is naturally turned toward the inside of the holder 150 at the bent portion of the first insertion hole 157, and can be inserted into the inside of the holder 150. I can do it.

As shown in FIG. 6, the second insertion hole 158 is a long hole that penetrates to the inside of the holder 150 below the first insertion hole 157. The second insertion hole 158 is larger in thickness than the lifting cord 130, but smaller than the knot 130a formed by the lifting cord 130.

The holder 150 has a third wall 159 at the end of the first wall 152 opposite to the second wall 156, as shown in FIG. 3(a). The third wall portion 159 is formed at the same height as the first wall portion 152. A base portion 165 of an adjustment member 160, which will be described later, can be placed on the third wall portion 159.

As shown in FIG. 3, the bottom portion 154 is formed with a pair of protrusions 154a that protrude in the front-rear direction, and these protrusions 154a are fitted into the fitting portions 174 of the bottom rail 170, respectively. Therefore, the holder 150 is movable in the longitudinal direction of the bottom rail 170, but movement in the vertical and front-back directions is restricted.

(Adjustment member 160)
The adjustment member 160 is fixed to the holder 150 and allows the hanging length of the lifting cord 130 to be adjusted by pulling a part of the lifting cord 130 into the longitudinal direction of the bottom rail 170. The bottom rail 170 is tilted in the unlocking direction, which is one longitudinal direction, and the first locking part 161 is released from locking with the first regulating part 151, so that the bottom rail 170 can be moved in the longitudinal direction. , the bottom rail 170 is tilted in the locking direction, which is the other longitudinal direction, and the first locking portion 161 is locked with the first regulating portion 151, thereby restricting the movement of the bottom rail 170 in the longitudinal direction. .

As shown in FIG. 3(a), the adjustment member 160 is movable with respect to the holder 150 along the plurality of first restriction parts 151 and has a pair of first locks that can be locked to the first restriction parts 151. It has a stop part 161. The first locking portions 161 are a pair of cylindrical convex portions that respectively protrude in the direction of the first restriction portion 151 from a pair of substantially inverted L-shaped pieces 160a that are spaced apart from each other. The first locking portion 161 is removably fitted into the recess 151a of the first regulating portion 151, as shown in FIG. 4(b).

Further, the adjustment member 160 includes a pair of protrusions 162 that are slidable along a pair of grooves 153, as shown in FIG. 3(a). The protrusions 162 are a pair of cylindrical protrusions that respectively protrude in the direction of the groove 153 below the first locking part 161 of the pair of pieces 160a. The pair of protrusions 162 are inserted into the pair of grooves 153 from the insertion portion 153a that is open at the top, and are movable in the longitudinal direction of the pair of grooves 153 as shown in FIG. 4(b). 160 is tiltable about a pair of protrusions 162 as an axis.

As shown in FIG. 3A, the adjustment member 160 has a second locking portion 163 that protrudes and can lock with the second restriction portion 155 of the holder 150. The second locking portions 163 are provided at the lower ends of the pair of pieces 160a, respectively. As shown in FIG. 5, the second locking portion 163 includes a vertical portion 163a that faces the vertical surface 155b of the second regulating portion 155 in a state where the adjustment member 160 is restricted from moving relative to the holder 150; It has a bottom surface 163b facing the bottom portion 154 and a slope portion 163c facing the slope surface 155a. The second locking part 163 is configured to move relative to the second regulating part 155 without coming into contact with the second regulating part 155 when the adjusting member 160 tilts in the direction in which the engagement is released about the protrusion 162. There is.

As shown in FIG. 5, the second locking portion 163 engages with the second restriction portion 155 when the adjustment member 160 is tilted in the engagement direction. The adjustment member 160 is fixed to the holder 150 with the first locking part 161 locked to the first restriction part 151 and the second locking part 163 locked to the second restriction part 155. .

The adjustment member 160 further includes a cord turning section 164 that turns the lifting cord 130, as shown in FIG. 3(a). The cord turning portion 164 is formed to connect the pair of pieces 160a at a position between the first locking portion 161 and the second locking portion 163. As shown in FIG. 6, the cord turning portion 164 has a curved surface perpendicular to the longitudinal direction of the bottom rail 170, making it easier for the lifting cord 130 to turn. The lifting cord 130 is introduced into the holder 150 through the first insertion hole 157, rotated by the cord turning section 164, and guided out of the holder 150 through the second insertion hole 158. Then, a knot 130a is formed at the end outside of the holder 150, so that it is locked so that it cannot be pulled out from the second insertion hole 158. By changing the position of the knot 130 with respect to the lifting cord 130, the length of the lifting cord 130 can be adjusted in advance.

As shown in FIG. 3, the adjustment member 160 has a base portion 165 for operating tilting. The base portion 165 is formed to connect the upper ends of the pair of pieces 160a. A tilting operation auxiliary opening 166 is formed in a part of the base portion 165, into which a jig such as a flathead screwdriver, a coin, or the like can be inserted. The base portion 165 can be tilted in the unlocking direction by inserting a finger into the tilting operation auxiliary opening 166 or by inserting a flathead screwdriver, coin, etc. into the tilting operation auxiliary opening 166 and performing the tilting operation. Then, the locking between the adjustment member 160 and the holder 150 is released. When a flathead screwdriver, a coin, or the like is inserted into the tilting operation auxiliary opening 166 to perform the tilting operation, the tilting operation can be performed more easily than using a finger.

The configuration of the adjustment device 140 has been described above. The operation of the adjustment device 140 will be described below with reference to FIGS. 7 and 8. FIG. 7 is a perspective view for explaining the operation of the adjustment device 140. FIG. 8 is a cross-sectional view for explaining the operation of the adjustment device 140.

When the adjustment member 160 is fixed to the holder 150, as shown in FIGS. The second locking portion 163 of the adjustment member 160 is locked to the second restricting portion 155 of the holder 150. The base portion 165 is placed on the first wall portion 152 so that the overhang portion 152a and the base portion 165 are flush with each other. In this way, since the base portion 165 does not protrude from the holder 150, something is prevented from getting caught on the base portion 165, and the adjustment member 160 is prevented from inadvertently tilting.

When changing the position of the adjustment member 160 in order to adjust the hanging length of the lifting cord 130, first, the fixation between the holder 150 and the adjustment member 160 is released. As shown in FIGS. 7(b) and 8(b), the adjusting member 160 can be tilted by inserting a finger into the tilting operation auxiliary opening 166, or by inserting a flathead screwdriver, coin, etc. into the tilting operation auxiliary opening 166. By inserting and performing a tilting operation, the protrusion 162 is tilted in the unlocking direction as shown by arrow a in the figure with the protrusion 162 as the axis. Therefore, the first locking portion 161 of the adjusting member 160 is released from the first restricting portion 151 of the holder 150 and moves above the projecting portion 152a. Further, the second locking portion 163 of the adjusting member 160 is released from the second restricting portion 155 of the holder 150 and moves to the height of the groove portion 153 .

Next, as shown in FIGS. 7(c) and 8(c), the base portion 165 is grasped with fingers and the adjusting member 160 is moved in the direction of arrow b. At this time, since the protrusion 162 of the adjustment member 160 slides along the groove 153 of the holder, the adjustment member 160 can be moved smoothly.

After moving the adjustment member 160 to a desired position, the base portion 165 is tilted with a finger, as shown in FIGS. 7(d) and 8(d). The adjustment member 160 tilts in the locking direction as shown by arrow c in the figure with the protrusion 162 as the axis. At this time, the first locking part 161 of the adjustment member 160 is guided by the guide part 151b of the holder 150 and fits into the recess 151a. Therefore, the first locking portion 161 locks on the first restricting portion 151. In addition, the vertical portion 163a of the second locking portion 163 of the adjustment member 160 abuts against the vertical surface 155b of the holder 150, so that movement is restricted. Therefore, the second locking portion 163 locks on the second restriction portion 155. In this way, adjustment member 160 is fixed to holder 150.

Even when the adjustment member 160 is fixed at the position where the lifting cord 130 is pulled in the most, the tip of the base portion 165 is configured to be flush with the third wall portion 159, as shown in FIG. 8(d). . Therefore, something is prevented from getting caught on the base portion 165, and the base portion 165 is prevented from inadvertently tilting.

The operation of the adjustment device 140 has been described above. Hereinafter, the process of assembling the adjustment device 140 to the bottom rail 170 will be described with reference to FIGS. 9 and 10. FIG. 9 is a diagram for explaining the process of assembling the adjusting device 140 to the bottom rail 170, and is a perspective view showing a state before assembling. FIG. 10 is a diagram for explaining the process of assembling the adjustment device 140 to the bottom rail 170, and is a perspective view showing the assembled state.

As shown in FIG. 9, the adjusting device 140 is positioned so that the adjusting member 160 is on top and the protruding portion 154a of the holder 150 is fitted into the fitting portion 174 of the bottom rail 170 ( In the example of FIG. 9, it is inserted into the bottom rail 170 (from the third wall portion 159 side). Then, the adjustment device 140 is moved to a desired position via the opening 172 of the bottom rail 170.

After the adjusting device 140 is moved to a desired position as shown in FIG. 10, the lifting cord 130 hanging down through the exposed opening 176a of the mounting plate 176 is connected to the adjusting member 160. Thereafter, the mounting plate 176 is attached to the opening 172 of the bottom rail 170 with the position of the exposure opening 176a corresponding to the position of the adjustment device 140.

The process of assembling the adjustment device 140 to the bottom rail 170 has been described above. Hereinafter, a method for adjusting the hanging length of the lifting cord 130 will be described with reference to FIG. 11. FIG. 11 is a diagram showing a state in which the hanging length of the lifting cord 130 is adjusted, and (a) shows the case where the hanging length is the longest, and (b) shows the case where the hanging length is the shortest.

The hanging length of the lifting cord 130 is longest when the cord turning portion 164 of the adjusting member 160 is located closest to the second wall portion 156 of the holder 150, as shown in FIG. 11(a). The lifting cord 130 is drawn into the bottom rail 170 as the cord turning portion 164 approaches the third wall portion 159 of the holder 150, so that the hanging length becomes shorter. As shown in FIG. 11(b), when the cord turning portion 164 comes closest to the third wall portion 159, the hanging length of the lifting cord 130 becomes the shortest.

For example, when the pitch between the adjacent first regulating portions 151 of the holder 150 is 3 mm, the maximum adjustment amount A of the hanging length of the lifting cord 130 is 24 mm. By adjusting the hanging length of the lifting cord 130 in this manner, the height of the pleated screen 100 can be adjusted. Moreover, since each lifting cord 130 is separately provided with an adjusting device 140, the hanging length can be adjusted separately. Therefore, the inclination of the bottom rail 170 can also be adjusted. Further, by changing the position of the knot 130a of the lifting cord 130, more fine adjustment is possible.

(Effects of the first embodiment)
As described above, according to the present embodiment, the length of the lifting cord 130 can be easily adjusted even though the structure is simple and includes only the holder 150 and the adjustment member 160 with a small number of parts. Therefore, since the hanging length of the lifting cord 130 can be easily adjusted and held, the height of the pleated screen 100 and the inclination of the bottom rail 170 can be easily adjusted.

Further, by tilting the adjusting member 160, the adjusting member 160 can be moved to adjust the hanging length of the lifting cord 130, and the movement of the adjusting member 160 can be restricted to adjust the hanging length of the lifting cord 130. It is possible to easily switch between holding it in position and holding it in place.

Furthermore, since the pair of protrusions 162 slide in the groove 153, the adjustment member 160 can be moved smoothly. Further, it is possible to prevent the adjustment member 160 from separating from the holder 150 during movement.

In addition, since the first locking part 161 locks with the first regulating part 151, the adjustment member 160 can be fixed to the holder 150 so that it does not move or tilt, so after adjusting the hanging length of the lifting cord 130, The adjustment position can be held securely so that it does not shift.

Furthermore, by locking the adjustment member 160 to the holder 150 at two locations, the first locking portion 161 and the second locking portion 163, it is possible to ensure that the adjustment position does not shift even if strong tension is generated in the lifting cord 130. can be held.

The lifting cord 130 is introduced into the holder 150 through the first insertion hole 157, rotated by the cord turning section 164, and guided out of the holder 150 through the second insertion hole 158. Therefore, the hanging length of the lifting cord 130 can be adjusted by an adjustment amount that is twice the amount of movement of the adjustment member 160 in the longitudinal direction. Therefore, a sufficient amount of adjustment can be ensured without increasing the size of the adjustment device 140.

Further, since the first regulating portions 151 are formed on the holder 150 at a predetermined pitch along the longitudinal direction of the bottom rail 170, the hanging length of the lifting cord 130 can be adjusted while recognizing the amount of adjustment. Therefore, the hanging length can be finely adjusted easily.

In addition, since the adjustment member 160 has a tilting operation auxiliary opening 166 in a part of the base portion 165, it is possible not only to insert a finger into the tilting operation auxiliary opening 166 to raise the adjustment member, but also to The adjustment member 160 can be raised by inserting a jig such as a screwdriver into the tilt operation auxiliary opening 166. Therefore, even if it is difficult to operate with a finger, it can be easily operated.

Further, since the adjustment member 160 is exposed so as to be operable through an exposure hole 176a formed in a part of the mounting plate 176 when it is attached to the bottom rail 170, the adjustment member 160 can be easily operated. be able to.

(Modification 1)
Modification 1 has a configuration in which the shape of the base portion 165 of the adjustment member 160 of the first embodiment is changed. The configuration of the base portion 265 of this modification will be described with reference to FIG. 12. FIG. 12 is a perspective view showing a first modification of the adjustment device 140. As shown in FIG. is configured to protrude from the third wall portion 159 in the longitudinal direction.

In this manner, a portion of the base portion 265 projects from the end of the holder 150 in the longitudinal direction, making it easier to grip the end of the base portion 265 with fingers. Therefore, even if the adjustment member 160 is small, it can be easily operated with a finger. Further, since it is not necessary to provide the tilt operation auxiliary opening 166 in the base portion 265 as in the first embodiment, the purpose can be achieved with a simple structure.

(Modification 2)
Modification 2 is a configuration in which the adjustment device 140 does not rotate the lifting cord 130. The adjustment device 140 of this modification will be described with reference to FIG. 13. FIG. 13 shows a second modification of the adjustment device 140, and is a diagram corresponding to the BB sectional view of FIG. 4(a). As shown in FIG. 13, the holder 150 is provided with only a first insertion hole 157 for introducing the lifting cord 130 into the holder 150, and a second insertion hole 157 for leading the lifting cord 130 out of the holder 150. No insertion hole 158 is provided.

Further, the adjustment member 160 is provided with a cord locking portion 364 that locks the lifting cord 130 within the holder instead of the cord turning portion 164 that rotates the lifting cord 130 within the holder 150. The cord locking portion 364 has a through hole 364a that passes through the bottom rail 170 in the longitudinal direction, and the lifting cord 130 introduced into the holder 150 from the first insertion hole 157 is inserted into the through hole 364a of the cord locking portion 364. By passing through the cord and forming a knot 130a at the tip, the cord locking portion 364 is locked.

By adopting a configuration in which the lifting cord 130 is not rotated, the maximum movement amount of the lifting cord 130 is smaller than that of the adjusting device 140 of the first embodiment, but the configuration of the holder 150 can be simplified and the manufacturing process can be reduced. . Furthermore, since the lifting cord 130 is not rotated within the holder 150, the work of connecting the lifting cord 130 to the adjustment device 140 becomes easier.

Although preferred embodiments of the present invention have been described above with reference to the accompanying drawings, it goes without saying that the present invention is not limited to such examples. It is clear that those skilled in the art can come up with various changes or modifications within the scope of the claims, and these naturally fall within the technical scope of the present invention. Understood.

For example, in the first embodiment, the bottom rail 170 is used as the rail material, but the present invention is not limited to this example. For example, the rail material may be a middle bar of a blind with screens on the upper and lower levels.

Further, in the first embodiment, the holder 150 and the adjusting member 160 are locked and unlocked by tilting the adjusting member 160, but the present invention is not limited to this example. The locking and unlocking of the holder and the adjustment member can be arbitrarily designed. For example, the locking and locking may be performed by moving the adjustment member in the vertical direction of the holder.

Further, in the first embodiment, the adjustment member 160 is attached to the holder 150 so that the protrusion 162 can slide in the groove 153 of the holder 150, so that the adjustment member 160 is movable in the longitudinal direction of the bottom rail 170. In addition, although it is made possible to tilt around the protrusion 162, the present invention is not limited to this example. Any design can be used as long as the adjustment member can be moved and locked and unlocked from the holder. For example, the adjustment member may not have a protrusion, and the holder may not have a groove.

Further, in the first embodiment, when the first locking part 161 is locked to the first regulating part 151, the adjustment member 160 moves the bottom rail 170 in the longitudinal direction with respect to the holder 150. Although the configuration is such that the movement of the bottom rail 170 is regulated and the tilting movement of the bottom rail 170 about the lateral direction is regulated, the present invention is not limited to this example. As long as the first locking part is locked with the first restricting part and movement of the adjusting member in the longitudinal direction is restricted, the adjustment member can be designed as desired.

Further, in the first embodiment, the adjustment is performed in a state in which the first locking portion 161 is locked to the first restriction portion 151 and a state in which the second locking portion 163 is locked to the second restriction portion 155. Although the member 160 is fixed to the holder 150, the present invention is not limited to this example. As long as the first locking part is locked with the first restricting part and movement of the adjusting member in the longitudinal direction is restricted, the adjustment member can be designed as desired. For example, the adjustment member may not be provided with the second locking portion, and the holder may not be provided with the second restriction portion.

Further, in the first embodiment, the cord is the lifting cord 130 whose one end is connected to the bottom rail 170, but the present invention is not limited to this example. It can be applied to ladder cords or ladder tapes for tilting (opening and closing) the slats of horizontal blinds and lifting tapes, and also for pitch cords for keeping each pleat of a pleated screen at a constant width. You may do so.

The embodiments, application examples, modifications, etc. described above can be implemented in appropriate combinations.

100 Pleated screen 110 Screen (shielding material)
120 Head box 130 Lifting cord (cord)
140 Adjustment device 150 Holder 151 First regulation part 152 First wall part 153 Groove part 154 Bottom part 155 Second regulation part 156 Second wall part 157 First insertion hole 158 Second insertion hole 160 Adjustment member 161 First locking part 162 Projection Part 163 Second locking part 164 Cord turning part 165, 265 Base part 166 Tilt operation auxiliary opening 170 Bottom rail (rail material)
172 Opening 176 Mounting plate 176a Exposure port (opening)
364 Cord locking part 364a Through hole

Claims (11)

An adjustment device for adjusting the hanging length of the cord in a blind comprising a cord hanging down along a shielding material suspended from a head box, and a rail material connected to a lower end of the shielding material,
a holder attached to the rail material and having a plurality of first regulating portions provided along the longitudinal direction of the rail material;
an adjustment member that is provided so as to be movable in the longitudinal direction of the rail material while attached to the holder, and has a first locking part that can be locked to the first restriction part;
Equipped with
The cord is connected to the adjustment member so that a portion of the cord is pulled in the longitudinal direction of the rail material in response to movement of the adjustment member in the longitudinal direction of the rail material,
By moving the adjustment member in the longitudinal direction of the rail material, the hanging length of the cord can be adjusted, and the first locking portion is locked to any one of the first restriction portions to adjust the adjustment member. An adjusting device characterized in that the hanging length of the cord can be maintained by restricting movement of the member in the longitudinal direction of the rail material. The adjustment member is provided to be movable in the longitudinal direction of the rail material while attached to the holder, and to be tiltable about the lateral direction of the rail material as an axis,
The rail material can be moved in the longitudinal direction by being tilted in a locking release direction that is one of the longitudinal directions of the rail material, and the first locking part is released from the first regulating part, so that the rail material can be moved in the longitudinal direction. , the movement of the rail material in the longitudinal direction is regulated by being tilted in the locking direction, which is the other longitudinal direction of the rail material, so that the first locking part is locked with the first regulating part. Adjustment device according to claim 1, characterized in that: A plurality of the first regulating portions are provided along the longitudinal direction of the rail material so as to face each other in the lateral direction of the rail material at the upper end portion of the holder that opens upward,
A pair of the first locking portions are formed at both ends of the adjustment member in the transverse direction of the rail material,
The holder further includes grooves provided below the first regulating part so as to face each other in the transverse direction of the rail material, and a portion of the groove extends in the longitudinal direction of the rail material. exists,
The adjustment member has a pair of protrusions at both ends in the short direction of the rail material at a position different from the first locking part, and the pair of protrusions can slide in the groove. 3. The adjusting device according to claim 2, wherein the adjusting device is attached to the holder in such a manner that it is movable in the longitudinal direction of the rail material and tiltable about the pair of convex portions as an axis. When the first locking portion is locked with the first regulating portion, the adjustment member restricts the movement of the rail material in the longitudinal direction with respect to the holder, and also controls the lengthwise movement of the rail material with respect to the holder. The adjusting device according to claim 2 or 3, wherein tilting about the hand direction as the axis is restricted. The holder further includes a plurality of second regulating portions provided in the longitudinal direction of the rail material at the bottom,
The adjustment member further includes a second locking part that protrudes so as to be able to lock with the second restriction part by being tilted in the locking direction, and the first locking part is connected to the first restriction part. 5. The adjusting device according to claim 4, wherein the adjusting device is fixed to the holder in a locked state and in a state in which the second locking portion is locked with the second restricting portion. The holder further includes a first insertion hole formed at the upper end of the second wall part perpendicular to the longitudinal direction of the rail material, and a second insertion hole formed below the first insertion hole. have,
The adjustment member further includes a cord turning part that turns the cord,
The cord is introduced into the holder through the first insertion hole, rotated at the cord turning section, and guided out of the holder through the second insertion hole, and the end portion is connected to the second insertion hole. The adjustment device according to claim 1, wherein the adjustment device is locked so that it cannot be pulled out from the insertion hole. 7. The adjusting device according to claim 1, wherein the first regulating portions are formed on the holder at a predetermined pitch along the longitudinal direction of the rail material. 3. The adjustment device according to claim 2, wherein the adjustment member has a base portion for operating a tilting motion, and a tilting operation auxiliary opening is provided in a part of the base portion. The adjustment member has a base portion for operating tilting, and in a state in which the first locking portion is locked to the first regulating portion, a portion of the base portion touches the end of the holder. 3. Adjusting device according to claim 2, characterized in that it projects longitudinally from. A blind comprising the adjustment device according to claim 1. further comprising a mounting plate for connecting the lower end of the shielding material to the rail material,
The blind according to claim 10, wherein the adjustment member is operable and exposed through an opening formed in a part of the mounting plate when it is attached to the rail material. .