Head runner

Abstract

To provide a head runner capable of forming a clear wave in a wave curtain.SOLUTION: A head runner 160 attached to a curtain rail 110 includes a first part 300 extending in a first direction being a direction along a longitudinal direction of the curtain rail 110 when the head runner 160 is attached to the curtain rail 110, and a second part 220 extending from the first part 300 along a second direction intersecting to the first direction, the first part 300 has a connection part connected to an attachment member to which a plurality of runners 181 following the head runner 160 are attached, and the second part 220 is provided with a fastening part for fastening a light shielding member 90 to be attached to the curtain rail 110.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a lead runner, and more particularly to a lead runner that is attached to a curtain rail. [Background technology]

[0002] BACKGROUND ART Conventionally, wave curtains are known in which a plurality of curtain runners are maintained at regular intervals when the curtain is closed, thereby maintaining the waves of the curtain at regular intervals.

[0003] In this type of wave curtain, multiple curtain runners are connected with attachment members called pitch-keeping tapes or pitch-keeping cords to maintain equal wave spacing (see, for example, Patent Document 1). In such a wave curtain, when the leading runner of the multiple curtain runners (hereinafter sometimes referred to as the "leading runner") slides along the length of the curtain rail, multiple other curtain runners connected to the leading runner via attachment members slide along the length of the curtain rail. Then, when the leading runner reaches its limit on the curtain rail, the multiple other curtain runners are kept at equal intervals, resulting in the formation of evenly spaced waves. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2023-085637 Summary of the Invention [Problem to be solved by the invention]

[0005] In the wave curtains described above, there is a demand for forming clearer waves.

[0006] The present invention has been made in consideration of the above points, and one of its objectives is to provide a front runner that enables the formation of clear waves in a wave curtain. [Means for solving the problem]

[0007] (1): The present invention relates to a leading runner that is at the front of a plurality of runners that are attached to a curtain rail, and that comprises a first portion that extends in a first direction that is a direction along the longitudinal direction of the curtain rail when the leading runner is attached to the curtain rail, and a second portion that extends from the first portion in a second direction that intersects with the first direction, and the first portion has a connection portion that connects to an attachment member to which a plurality of runners that follow the leading runner are attached, and the second portion has a fastening portion for fastening a shading member that is attached to the curtain rail.

[0008] (2): In the leading runner of (1), the second portion may extend along the second direction from a portion on one side of the first portion in the first direction, and the connecting portion may be located on the other side of the first portion in the first direction.

[0009] (3): The leading runner of (2) may further include a third portion extending from the other side of the first portion in the first direction toward the side to which the second portion extends, using the first portion as a reference.

[0010] (4): In the leading runner of (2), the second direction may be a direction perpendicular to the first direction, and the third portion may be parallel to the second portion.

[0011] In this specification, "orthogonal" and "perpendicular" do not only mean completely "orthogonal" and "perpendicular" but also include cases where the deviation is small enough to be recognized as a manufacturing error, even if the deviation is not strictly "orthogonal" and "perpendicular." In this specification, "parallel" does not only mean completely "parallel," but also includes cases where the deviation is small enough to be recognized as a manufacturing error, even if the deviation is not strictly parallel.

[0012] (5): In the leading runner of (3), the second portion may extend obliquely relative to the first portion toward the one side in the first direction, and the third portion may extend obliquely relative to the first portion toward the other side in the first direction.

[0013] (6): The leading runner of (2) may further include a third portion extending from an end of the second portion toward the one side in the first direction.

[0014] (7) In the leading runner of (6), the third portion may extend obliquely so as to move away from the curtain rail as it goes to the one side in the first direction.

[0015] (8): The leading runner of (6) or (7) may further include a fourth portion extending from the other end of the first portion in the first direction toward the opposite side to the side to which the second portion extends, using the first portion as a reference.

[0016] (9): In any of the leading runners (6) to (8), the third portion may extend in the first direction so that, when the curtain device is in a fully closed state, a corner at the end of the shading member fastened to the leading runner in the first direction is positioned on the side where the leading runner moves toward the fully closed state relative to a fully closed determining portion that determines the position of the leading runner in the fully closed state. [Effects of the Invention]

[0017] According to the present invention, a leading runner is provided that enables clear waves to be formed in a wave curtain. [Brief explanation of the drawings]

[0018] [Figure 1] 1 is a front view showing the external configuration and a part of the internal configuration of a curtain device according to an embodiment of the present invention. [Figure 2] 10 is a bottom view showing a part of the curtain device in a state where the leading runner has reached its limit of reach (i.e., the light blocking member is fully closed). FIG. [Figure 3] 3 is a bottom view showing a part of the curtain device together with its internal configuration, and is an exploded view showing a part of the leading runner shown in FIG. 2. FIG. [Figure 4] 2 is a diagram for explaining the configuration of a leading runner and a trailing runner of the curtain device shown in FIG. 1. FIG. [Figure 5] FIG. 4 is a front view showing the leading runner shown in FIG. 3. [Figure 6] FIG. 4 is a view showing the leading runner according to the second embodiment from the same perspective as FIG. 3. [Figure 7] 7 is a view showing the leading runner shown in FIG. 6 from the same perspective as FIG. 5. [Figure 8] FIG. 10 is a bottom view showing a part of the curtain device according to the third embodiment. [Figure 9] 9 is a bottom view showing a part of a modified example of the curtain device shown in FIG. 8. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0019] Below, embodiments of the front runner according to the present invention are illustrated with reference to the accompanying drawings. The embodiments illustrated below are intended to facilitate understanding of the present invention and are not intended to limit the present invention. The present invention can be modified or improved from the following embodiments without departing from the spirit of the present invention. In addition, in the accompanying drawings, the dimensions of each component may be exaggerated or reduced, and hatching may be omitted, in order to facilitate understanding.

[0020] (First embodiment) The curtain device according to the present embodiment is attached to, for example, a window frame, a wall around a window, or a ceiling, and is used as a shading device for blocking sunlight, etc. The curtain device according to the present embodiment may also be used to enable the outside to be seen from inside the room, to prevent the inside of the room from being seen from outside, to allow light and wind to enter the room, or to prevent light and wind from entering the room.

[0021] Fig. 1 is a front view (view of the curtain device from the indoor side toward the outdoor side) showing the exterior configuration and a part of the internal configuration of the curtain device 100 according to this embodiment. Fig. 2 is a bottom view (view of the curtain device from the indoor floor side toward the ceiling side) showing a part of the curtain device 100. Fig. 2 shows the light-blocking member 90 in a fully closed state, which will be described later.

[0022] 1 and 2, the curtain device 100 is an electric curtain and includes a curtain rail 110, pulley cases 130a and 130b that house pulleys (not shown), a drive belt 140, a belt joint 150, a leading runner 160, a trailing runner 180, a connector 200, a motor 500, and one light-blocking member 90 (e.g., a curtain). For convenience, the light-blocking member 90 is not shown in FIG. 1. In this embodiment, the curtain device 100 is configured as a one-side opening curtain device in which one light-blocking member 90 opens to one side.

[0023] The curtain device 100 may be a double-opening curtain device in which the two light-blocking members 90 open in opposite directions. The curtain device 100 does not have to be an electric curtain. If the curtain device 100 is a manual curtain, for example, the motor 500, the pulley cases 130a and 130b, and the drive belt 140 can be omitted.

[0024] As shown in FIGS. 1 and 2, the curtain rail 110 is a rectangular cylindrical body having a predetermined length. The curtain rail 110 may be attached to the ceiling, for example, around a window. The curtain rail 110 includes a ceiling-side wall portion (hereinafter referred to as the "ceiling wall portion") 110a attached to the ceiling on the vertically upper side (the side indicated by arrow a), side wall portions 110b, 110b extending vertically downward (the side indicated by arrow b) from both ends of the ceiling wall portion 110a and facing each other in a parallel relationship, and bottom wall portions 110c, 110c (vertically lower portions 110c, 110c of the curtain rail 110) extending from the lower ends of the side wall portions 110b, 110b to face each other and disposed parallel to the ceiling wall portion 110a with a predetermined gap (groove) between them.

[0025] That is, in the curtain rail 110, the gap between the bottom wall portions 110c and 110c is a groove 110cv provided along the longitudinal direction of the curtain rail 110 relative to the bottom wall portions 110c. Hereinafter, the direction along the longitudinal direction of the curtain rail 110 may be referred to as a first direction. In this embodiment, the first direction is parallel to the longitudinal direction of the curtain rail 110. Hereinafter, the side facing the direction of arrow c in the first direction may be referred to as one side in the first direction, and the side facing the direction of arrow d in the first direction may be referred to as the other side in the first direction. Note that the direction of arrow c in the first direction is the direction in which the light-blocking member closes (the direction from the pulley case toward the center of the curtain rail in the longitudinal direction of the curtain rail), and the direction of arrow d in the first direction is the direction in which the light-blocking member opens (the direction from the center of the curtain rail toward the pulley case in the longitudinal direction of the curtain rail).

[0026] The curtain rail 110 also has two brackets 111 for fixing to the ceiling at both ends in the first direction. The brackets 111 are provided with a plurality of through holes (not shown) for inserting screws or the like used for fixing to the ceiling or the like.

[0027] 1, the drive belt 140, the belt joint 150, and the pitch-keeping tape 190 (described later) of the trailing runner 180 are completely housed in the space inside the curtain rail 110. On the other hand, only the upper portions of the connector 200, the leading runner 160, and the trailing runner 180 are housed in the space inside the curtain rail 110, and their lower portions are exposed to the space outside the curtain rail 110 (i.e., the room space).

[0028] Pulley cases 130a and 130b have a substantially rectangular parallelepiped shape and rotatably support pulleys (not shown) in their internal space. Pulley case 130a is attached to the end of the curtain rail 110 on the other side (the side in the direction of arrow d), and pulley case 130b is attached to the end of one side (the side in the direction of arrow c) of the curtain rail 110. Pulley cases 130a and 130b have roughly the same configuration, but pulley case 130a rotatably supports a pulley coupled to the output shaft of motor 500. However, this is not a limitation, and the output shaft of motor 500 may be coupled to a pulley housed in pulley case 130b. In other words, motor 500 may be attached to the end of one side (the side in the direction of arrow c) of curtain rail 110.

[0029] FIG. 3 is a bottom view showing a portion of the curtain device 100 together with its internal configuration, with a portion of the leading runner 160 shown exploded. As shown in FIGS. 1 and 3, the drive belt 140 is a protruding belt having a plurality of protrusions that engage with the teeth of the pulley. The drive belt 140 is a single belt-like member having one end 140a and the other end 140b. Belt joints 150 are attached to the one end 140a and the other end 140b of the drive belt 140, respectively. The two belt joints 150, 150 are components that constitute the leading runner 160. The two belt joints 150, 150 are configured to be connectable to each other, and the drive belt 140 is formed into a loop by connecting the two belt joints 150, 150 to each other, etc. Therefore, when the motor 500 is driven, the pulley rotates, and the loop-shaped drive belt 140, which is engaged with the teeth of the pulley, rotates inside the curtain rail 110.

[0030] Fig. 4 is a diagram for explaining the configuration of the leading runner 160 and the trailing runner 180. Fig. 5 is a front view showing the leading runner 160.

[0031] As shown in FIGS. 3 to 5, the leading runner 160 includes the two belt joints 150, 150 described above, a one end runner body 161, an other end runner body 165, an arm 210, and a clamping plate 215.

[0032] The one-end runner body 161 is connected to a belt joint 150 attached to one end 140a of the drive belt 140, and the other-end runner body 165 is connected to a belt joint 150 attached to the other end 140b of the drive belt 140. The one-end runner body 161 and the other-end runner body 165 are located inside the inner circumferential surface of the loop-shaped drive belt 140 and overlap the groove portion 110cv of the curtain rail 110 in a bottom view. That is, the one-end runner body 161 and the other-end runner body 165 are exposed to the outside of the curtain rail 110 via the groove portion 110cv in a bottom view. The one-end runner body 161 and the other-end runner body 165 are mirror images of each other and have the same structure. For this reason, the following description will mainly focus on the one-end runner body 161.

[0033] The one-end runner body 161 includes a runner main body 162 and two wheels 163, 163 rotatably supported on the runner main body 162. The runner main body 162 is a plate-shaped member extending in the vertical direction (the direction of arrow ab) and the first direction. The two wheels 163, 163 are provided on one side (the side in the direction of arrow e) and the other side (the side in the direction of arrow f) of the runner main body 162 in the width direction (the direction of arrow ef) of the curtain rail 110, which is perpendicular to the vertical direction and the first direction (i.e., perpendicular to the runner main body 162). Note that, hereinafter, the width direction of the curtain rail 110 may be simply referred to as the "width direction." In addition, in this embodiment, the width direction may also be referred to as the "second direction." Front views in FIGS. 1 and 5 show the curtain device 100 as viewed from the other side in the width direction (the side in the direction of arrow f).

[0034] A through-hole into which a portion of the belt joint 150 can fit is formed in the upper portion of the runner main body 162. As shown in Fig. 3, the belt joint 150 fits into this through-hole, whereby the runner main body 162 is attached to the drive belt 140 via the belt joint 150. The runner main body 162 fitted into the belt joint 150 extends in the vertical direction and the first direction, as described above.

[0035] The runner main body 162 supports two wheels 163, 163 at approximately the center in the vertical direction of the runner main body 162. The two wheels 163, 163 are located below the belt joint 150 (on the side in the direction of arrow b). As described above, the two wheels 163, 163 of the one-end runner body 161 are arranged on one side (the side in the direction of arrow e) and the other side (the side in the direction of arrow f) of the runner main body 162 in the width direction (second direction). As shown in FIG. 1, one of the two wheels 163, 163 of the one-end runner body 161 abuts against one of the two bottom wall portions 110c, 110c of the curtain rail 110, and the other wheel 163 abuts against the other of the two bottom wall portions 110c, 110c. Therefore, the two wheels 163, 163 of the one end side runner body 161 and the two wheels 163, 163 of the other end side runner body 165 can run along the bottom wall portion 110c in the first direction while being housed in the inner space of the curtain rail 110.

[0036] As shown in Fig. 1, the lower portions of runner main body 162 of one end runner body 161 and runner main body 162 of the other end runner body 165 are exposed below curtain rail 110 via groove 110cv. As shown in Figs. 4 and 5, through holes (not shown) for fastening arm 210 are formed in the lower portions of runner main body 162 of one end runner body 161 and runner main body 162 of the other end runner body 165. Note that grooves (female threads) into which threading members such as screws can be threaded may be formed on the inner surfaces of one end runner body 161 and the other end runner body 165 that define these through holes.

[0037] As shown in FIG. 3, the arm 210 of the leading runner 160 is a member formed by bending a rectangular plate-like member (for example, a metal plate), and includes a main plate portion 211, a second portion 220, and a third portion 230.

[0038] The main plate portion 211 of the arm 210 extends in a first direction, which is a direction along the longitudinal direction of the curtain rail 110 when the leading runner 160 is attached to the curtain rail 110. One or more (three in this embodiment) through holes 211ha, 211hb, and 211hc are formed in the main plate portion 211 along the first direction. In the first direction, the through hole 211ha is on one side (the side in the direction of arrow c), and the through hole 211hc is on the other side (the side in the direction of arrow d). Each of these through holes 211ha, 211hb, and 211hc penetrates the main plate portion 211 in the width direction of the curtain rail 110 (the direction of arrow ef). An inner surface of the main plate portion 211 that defines the through holes 211ha, 211hb, and 211hc may be formed with a groove (female thread) into which a screw or other screw-fitting member can be threaded.

[0039] The second portion 220 of the arm 210 is connected to an end portion of the main plate portion 211 on one side in the first direction (the side in the direction of arrow c) and extends from the end portion on one side in the first direction of the main plate portion 211 along the second direction. The second direction is a direction intersecting the first direction, and in this embodiment, is a direction perpendicular to the first direction (the width direction of the curtain rail 110). In this embodiment, the second portion 220 protrudes to one side in the second direction (the side in the direction of arrow e) relative to the main plate portion 211. One or more through holes 221, 221 (two in this embodiment) are formed in the second portion 220 along the first direction. Each of these through holes 221, 221 penetrates the second portion 220 in the first direction.

[0040] The third portion 230 of the arm 210 is connected to an end portion of the main plate portion 211 on the other side in the first direction (the side in the direction of arrow d) and extends from the end portion of the main plate portion 211 on the other side in the first direction along the second direction. That is, in the present embodiment, the third portion 230 is parallel to the second portion 220 and extends from the end portion of the main plate portion 211 on the other side in the first direction (the side in the direction of arrow d) toward the side to which the second portion 220 extends (the side in the direction of arrow e) with respect to the main plate portion 211. In the present embodiment, the length of the third portion 230 in the second direction is shorter than the length of the second portion 220 in the second direction. The length of the third portion 230 in the second direction may be, for example, approximately half the length of the second portion 220 in the second direction. One or more through holes 231 (one in the present embodiment) are formed in the third portion 230 along the first direction. The through-hole 231 penetrates the third portion 230 in the first direction.

[0041] As shown in FIG. 3, the fastening plate 215 of the leading runner 160 is a member made of a rectangular plate-like member (e.g., a metal plate). In this embodiment, the thickness (length in the second direction) of the fastening plate 215 is the same as the thickness of the arm 210. The fastening plate 215 has a length in the first direction that is slightly shorter than that of the arm 210, and a length in the vertical direction that is the same as that of the arm 210. The fastening plate 215 has through holes 215ha, 215hb, and 215hc formed therein so as to correspond to the through holes 211ha, 211hb, and 211hc in the main plate portion 211 of the arm 210. Each of these through holes 215ha, 215hb, and 215hc penetrates the fastening plate 215 in the second direction (the direction of the arrow ef). An inner surface of the fastening plate 215 that defines the through holes 215ha and 215hb may be formed with a groove (female thread) into which a screw or other screw member can be threaded.

[0042] 3, the one-end runner body 161 and the other-end runner body 165 are brought into contact with each other in the first direction, and then the arm 210 is placed on the other side in the second direction (the side in the direction of arrow f) of these one-end runner body 161 and the other-end runner body 165, and the fastening plate 215 is placed on one side (the side in the direction of arrow e). Then, the above-mentioned through hole formed in the one-end runner body 161, the through hole 211ha formed in the main plate portion 211 of the arm 210, and the through hole 215ha formed in the fastening plate 215 are communicated with each other, and a screw B1 is inserted into the communication hole and screwed into the communication hole. Furthermore, the above-mentioned through hole formed in the other-end runner body 165, the through hole 211hb formed in the main plate portion 211 of the arm 210, and the through hole 215hb formed in the fastening plate 215 are communicated with each other, and the screw B2 is inserted into the communicating hole and screwed into the communicating hole. As a result, as shown in Figures 2 and 5, the belt joints 150, 150, the one-end runner body 161, the other-end runner body 165, the arm 210, and the fastening plate 215 are integrated to form the leading runner 160. This leading runner 160 is the foremost runner of the multiple runners included in the curtain device 100, and moves within the curtain rail 110 in the first direction as the drive belt 140 rotates when the motor 500 is driven.

[0043] In the lead runner 160 configured as described above, the first portion 300 is a portion that extends in a first direction, which is a direction along the longitudinal direction of the curtain rail 110 when the lead runner 160 is attached to the curtain rail 110. In this embodiment, the first portion 300 includes the belt joints 150, 150, the one-end runner body 161, the other-end runner body 165, the main plate portion 211 of the arm 210, and the fastening plate 215. Therefore, the second portion 220 of the arm 210 extends from one side in the first direction (the side in the direction of arrow c) of the main plate portion 211 of the first portion 300 along the second direction, and the third portion 230 of the arm 210 extends from the other side in the first direction (the side in the direction of arrow d) of the main plate portion 211 of the first portion 300 toward the side to which the second portion 220 extends (one side in the second direction (the side in the direction of arrow e)) using the first portion 300 as a reference.

[0044] 4, in the curtain device 100 of this embodiment, the trailing runner 180 is connected to the leading runner 160 via the connector 200. However, the trailing runner 180 may be connected directly to the leading runner 160 without using the connector 200.

[0045] As shown in Figure 4, the trailing runner 180 includes a pitch-keeping tape 190 connected to the leading runner 160, and a plurality of runners 181 attached to the pitch-keeping tape 190. The plurality of runners 181 all have the same structure. Each of the plurality of runners 181 that make up the trailing runner 180 is connected in series to the pitch-keeping tape 190 at regular intervals, thereby forming the trailing runner 180. The pitch-keeping tape 190 functions as an attachment member to which the plurality of runners 181 are attached.

[0046] The runner 181 includes a runner body 182 made of resin, a hanging ring 183 attached to the runner body 182, and a pair of wheels 184, 184 journaled on the runner body 182. The runner body 182 has a generally rectangular parallelepiped shape overall and is configured to be engageable with an engaging member 193 provided on the pitch-keeping tape 190. The pair of wheels 184, 184 are provided on one side (the side in the direction of arrow e) and the other side (the side in the direction of arrow f) of the runner body 182 in the second direction. As shown in FIG. 1, one of the wheels 184, 184 abuts against one of the two bottom wall portions 110c, 110c of the curtain rail 110, and the other wheel 184 abuts against the other of the two bottom wall portions 110c, 110c. Therefore, each runner 181 of the trailing runner 180 can run on the bottom wall portion 110c while being accommodated in the inner space of the curtain rail 110.

[0047] As shown in FIG. 2, the hanging ring 183 of the runner 181 is configured to be able to engage with a hook (not shown) provided at the upper end (vertically upper end) of the light blocking member 90.

[0048] As shown in Figures 2 to 4, the pitch-keeping tape 190 is a tape-like member having a predetermined width and a predetermined flexibility. The pitch-keeping tape 190 is housed within the curtain rail 110 and is arranged parallel to the bottom wall portions 110c, 110c. When the pitch-keeping tape 190 is arranged within the curtain rail 110, the width direction of the pitch-keeping tape 190 corresponds to the second direction (the width direction of the curtain rail 110). The width of the pitch-keeping tape 190 is formed slightly larger than the width of the groove 110cv of the curtain rail 110. Therefore, in the curtain device 100, the pitch-keeping tape 190 is prevented from falling out of the groove 110cv.

[0049] A plurality of engaging bodies 193 are attached to the pitch-keeping tape 190 so that they are spaced at regular intervals when the pitch-keeping tape 190 is aligned in a straight line. Each of the engaging bodies 193 has the same configuration. In this embodiment, the engaging bodies 193 protrude in a direction perpendicular to the width direction of the pitch-keeping tape 190 (the vertical direction when the pitch-keeping tape 190 is attached to the curtain rail 110). In this embodiment, the engaging bodies 193 have a substantially C-shape when viewed along the width direction of the pitch-keeping tape 190, and are formed so that the thickness (width) of the substantially C-shaped portion is smaller than the width of the pitch-keeping tape 190. The engaging bodies 193 are thin, plate-like members. The engaging bodies 193 are made of, for example, elastic resin, and engage with the runner body 182 by elastic deformation.

[0050] That is, in this embodiment, runner 181 is attached to pitch-keeping tape 190 via engaging body 193, and light-blocking member 90 is attached to curtain rail 110 by engaging with hanging ring 183 of runner 181. Here, the length of light-blocking member 90 in the first direction when stretched in a straight line is longer than the length of curtain rail 110 in the first direction.

[0051] 4 and 5, connector 200 is a member that detachably connects leading runner 160 and trailing runner 180. Connector 200 is made of a generally rectangular plate-like member and may be made of, for example, resin. Connector 200 has a lower main body 201 and a head 205 that is integrally fixed to the upper side of main body 201.

[0052] The head 205 has a roughly T-shape in side view, and has a recess 206 formed on its upper end face, inside which a cylindrical engaged portion 207 is formed. That is, the engaging body 193 of the pitch-keeping tape 190 enters through the recess 206 of the head 205 and engages with the engaged portion 207, thereby coupling the connector 200 and the pitch-keeping tape 190. As shown in FIG. 4 , the connector 200 is coupled to the leading engaging body 193 of the multiple engaging bodies 193 attached to the pitch-keeping tape 190.

[0053] A through-hole 201h having a countersunk or countersunk groove formed in the center is formed in the main body 201. As shown in Fig. 3, the through-hole 201h in the main body 201 is formed to correspond to a through-hole 211hc in the arm 210 of the leading runner 160 and a through-hole 215hc in the fastening plate 215 of the leading runner 160. Therefore, in the leading runner 160, the through-hole 211hc in the arm 210 and the through-hole 215hc in the fastening plate 215 communicate with each other in the second direction (the direction of the arrow ef). By disposing the main body 201 of the connector 200 between the main plate 211 of the arm 210 and the fastening plate 215, the through-hole 201h of the connector, the through-hole 211hc in the arm 210, and the through-hole 215hc in the fastening plate 215 communicate with each other. A screw B2 is inserted through these mutually communicating through holes 201h, 211hc, and 215hc, and screwed into the through hole 211hc. In this embodiment, the through hole 215hc of the fastening plate 215 has an inner diameter larger than the outer diameter of the head of the screw B2. Therefore, in this embodiment, the screw B2 passes through the through hole 215hc of the fastening plate 215, and the screw B2 that has passed through the through hole 215hc is screwed into the through hole 211hc of the arm 210, thereby coupling the connector 200 to the leading runner 160. In this manner, in this embodiment, the connector 200 is coupled to the leading runner 160, and as a result, the trailing runner 180 including the multiple runners 181 and the pitch keeping tape 190 is coupled to the leading runner 160. Therefore, in this embodiment, the through-hole 211hc of the arm 210 functions as a connection portion that connects the leading runner 160 to the pitch-keeping tape 190 (attachment member) to which the multiple runners 181 following the leading runner 160 are attached. The configuration of the connection portion is not limited to the through-hole 211hc. The through-hole 211hc (connection portion) is located on the other side (the side in the direction of arrow d) in the first direction of the main plate portion 211 of the arm 210 of the leading runner 160. The rearmost runner 181 of the multiple runners 181 of the following runner 180 is fixed to the curtain rail 110.

[0054] In this embodiment, as described above, the leading runner 160 includes the second portion 220 extending from an end of the first portion 300 on one side in the first direction (the side indicated by the arrow c) toward one side in the second direction (the side indicated by the arrow e) along the second direction, and the third portion 230 extending from an end of the first portion 300 on the other side in the first direction (the side indicated by the arrow d) toward one side in the second direction (the side indicated by the arrow e) along the second direction. As shown in FIG. 2 , a corner 91 at the upper end (the end on the side indicated by the arrow a) of the light-shielding member 90 and an adjacent hook (not shown) are engaged with the through holes 221 of the second portion 220. The corner 91 and the adjacent portion of the corner 91 are hereinafter simply referred to as the “corner 91.” That is, each of the through holes 221, 221 of the second portion 220 functions as a fastening portion for fastening the light-blocking member 90 attached to the curtain rail 110. Note that the configuration of the fastening portion of the second portion 220 is not limited to the through hole 221. Also, a hook (not shown) in a first region 92 of the light-blocking member 90 that is shifted toward the direction of arrow d from the corner portion 91 is engaged with the through hole 231 of the third portion 230. That is, the through hole 231 of the third portion 230 functions as a fastening portion for fastening the light-blocking member 90 attached to the curtain rail 110. Note that the configuration of the fastening portion of the third portion 230 is not limited to the through hole 231.

[0055] In this manner, in this embodiment, the light blocking member 90 is engaged not only with the plurality of runners 181 of the trailing runner 180 but also with the second portion 220 and the third portion 230 of the leading runner 160.

[0056] In this curtain device 100, when the motor 500 is driven, the drive belt 140 rotates, and the rotation of the drive belt 140 causes the leading runner 160 attached to the drive belt 140 to move in the direction of arrow c along the curtain rail 110 (in the first direction). As shown in FIG. 2, as the leading runner 160 moves, the multiple runners 181 of the trailing runners 180 connected to the leading runner 160 move following the leading runner 160. When the leading runner 160 reaches its limit (the position where the pitch keep tapes 190 are aligned), the multiple runners 181 of the trailing runners 180 are aligned at equal intervals in the first direction. The limit of the leading runner 160's reach may be at the boundary BA between the curtain rail 110 and the pulley case 130b (see FIG. 1) or a position slightly shifted from the boundary BA toward the direction of arrow d. In this way, the light-blocking member 90 of the curtain device 100 is fully closed. In the fully closed state, for example, the window may be covered by the light-blocking member 90. Here, as described above, the length of the light-blocking member 90 in the first direction is longer than the length of the curtain rail 110 in the first direction. Therefore, by arranging the multiple runners 181 of the trailing runner 180 at equal intervals in the first direction, convex waves are formed on the light-blocking member 90 engaged with the multiple runners 181 at equal intervals P alternately on one side (the side in the direction of arrow e) and the other side (the side in the direction of arrow f) in the width direction of the curtain rail 110.

[0057] Furthermore, in this embodiment, as described above, corner 91 of light-blocking member 90 engages with second portion 220 of leading runner 160, and therefore corner 91 of light-blocking member 90 is oriented in a second direction (in this embodiment, a second direction perpendicular to the first direction) that intersects with the longitudinal direction (first direction) of curtain rail 110. Therefore, with leading runner 160 according to this embodiment, the waves of light-blocking member 90 are formed more clearly.

[0058] Furthermore, in this embodiment, as described above, the first region 92, which is shifted toward the direction of arrow d from the corner 91 of the light-blocking member 90, engages with the third portion 230 of the leading runner 160, so that the first region 92 of the light-blocking member 90 is oriented in a second direction (in this embodiment, the second direction perpendicular to the first direction) that intersects with the longitudinal direction (first direction) of the curtain rail 110. Therefore, with the leading runner 160 according to this embodiment, the waves of the light-blocking member 90 are formed even more clearly.

[0059] In this way, the leading runner 160 according to this embodiment makes it possible to form clear waves in the wave curtain.

[0060] In this embodiment, an example has been described in which the third part 230 extends toward the side to which the second part 220 extends (the side in the direction of arrow e), but the third part 230 may also extend toward the opposite side to the side to which the second part 220 extends (the side in the direction of arrow f).

[0061] (Second embodiment) Next, a second embodiment will be described. FIG. 6 is a view showing a leading runner according to this embodiment from the same perspective as FIG. 3. FIG. 7 is a view showing the leading runner shown in FIG. 6 from the same perspective as FIG. 5. As shown in FIGS. 6 and 7, the curtain device 100A according to this embodiment differs from the curtain device 100 according to the first embodiment only in the configuration of the leading runner 160A. Furthermore, the leading runner 160A according to this embodiment differs from the leading runner 160 according to the first embodiment only in the configuration of the arm 210A. This point will be described below. In this embodiment, components common to the first embodiment are designated by the same reference numerals as in the first embodiment, and descriptions thereof will be omitted unless necessary.

[0062] Arm 210A of leading runner 160A has main plate portion 211, second portion 220A, and third portion 230A. First portion 300 of leading runner 160A includes belt joints 150, 150, one end runner body 161, the other end runner body 165, main plate portion 211 of arm 210A, and fastening plate 215. Second portion 220A and third portion 230A are located on one side (the side in the direction of arrow e) of first portion 300 in the width direction (the direction of arrow ef) of curtain rail 110.

[0063] The second portion 220A extends from an end of the first portion 300 on one side in the first direction (the side in the direction of arrow c) along a second direction intersecting the first direction. In this modification, the second direction is a direction different from the second direction in the first embodiment. Specifically, the second direction in this embodiment is not parallel to the width direction of the curtain rail 110 (the direction of arrow ef) but is inclined with respect to the width direction of the curtain rail 110. Furthermore, the second direction in this embodiment is a direction inclined from the other side in the width direction of the curtain rail 110 (the side in the direction of arrow f) toward the other side (the side in the direction of arrow e) and from the other side in the first direction (the side in the direction of arrow d) toward one side (the side in the direction of arrow c). The second portion 220A extends obliquely with respect to the first portion 300 toward one side in the first direction (the side in the direction of arrow c).

[0064] The third portion 230A extends obliquely toward the other side in the first direction (the side in the direction of arrow d) relative to the first portion 300. Specifically, the third portion 230A extends obliquely from the other side (the side in the direction of arrow f) to one side (the side in the direction of arrow e) in the width direction (the direction of arrow ef) of the curtain rail 110, and from one side (the side in the direction of arrow c) to the other side (the side in the direction of arrow d) in the first direction relative to the first portion 300.

[0065] According to such a leading runner 160A, waves at equal intervals P are formed on the light blocking member 90 engaged with the plurality of runners 181, as in the first embodiment.

[0066] Furthermore, according to the leading runner 160A, the corners 91 of the light blocking member 90 are oriented in a second direction that intersects with the longitudinal direction (first direction) of the curtain rail 110. Therefore, according to the leading runner 160 according to this embodiment, the waves of the light blocking member 90 are formed more clearly.

[0067] Furthermore, according to the leading runner 160A, the first region 92, which is shifted in the direction of arrow d from the corner 91 of the light blocking member 90, is oriented in the first direction opposite (the side in the direction of arrow d) to the side to which the corner 91 is oriented (the side in the direction of arrow c). Therefore, according to the leading runner 160 of this embodiment, the waves of the light blocking member 90 are formed even more clearly.

[0068] (Third embodiment) Next, a third embodiment will be described. In this embodiment, the same components as those in the first embodiment will be denoted by the same reference numerals as those in the first embodiment, and the description thereof will be omitted unless necessary.

[0069] Fig. 8 is a bottom view showing a portion of a curtain device 100B according to this embodiment. As shown in Fig. 8, the curtain device 100B according to this embodiment includes a light-blocking member 90A provided on the pulley case 130b side and a light-blocking member 90B provided on the pulley case 130a side. The light-blocking members 90A and 90B have the same configuration as the light-blocking member 90 described above. The curtain device 100B also includes a leading runner 160B and a trailing runner 180 to which the light-blocking member 90A is attached, and a leading runner 160 and a trailing runner 180 to which the light-blocking member 90B is attached. In the curtain device 100B, a motor 500 is provided for each of the pulley case 130a and the pulley case 130b. Therefore, the curtain device 100B is a double-opening type curtain device in which the shading member 90A is opened and closed by the motor 500 provided on the side of the pulley case 130b, and the shading member 90B is opened and closed by the motor 500 provided on the side of the pulley case 130a.

[0070] In this embodiment, the leading runner 160 on the pulley case 130a side has the same configuration as the leading runner 160 according to the first embodiment. In this embodiment, the second portion 220 and the third portion 230 of the leading runner 160 extend toward one side in the width direction of the curtain rail 110 (the side indicated by the arrow e). On the other hand, the leading runner 160B on the pulley case 130b side has a different configuration from the leading runner 160. This point will be explained below.

[0071] The leading runner 160B differs from the leading runner 160 only in the configuration of the arm 210B. The arm 210B includes a main plate portion 211, a second portion 220B, a third portion 230B, and a fourth portion 240. The first portion 300 of the leading runner 160B includes belt joints 150, 150, a one-end runner body 161, an other-end runner body 165, the main plate portion 211 of the arm 210B, and a fastening plate 215.

[0072] The second portion 220B of the leading runner 160B extends from an end of the first portion 300 of the leading runner 160B on one side in the first direction (the side in the direction of arrow c when focusing on the light-blocking member 90A) along a second direction (the width direction of the curtain rail 110) that intersects the first direction toward the other side in the second direction (the side in the direction of arrow e). In this embodiment, the second direction is a direction perpendicular to the first direction. A through-hole (not shown) is formed in the second portion 220B as a fastening portion with which a hook (not shown) provided on the light-blocking member 90A can engage. By engaging the hook with this through-hole, the first region 92 shifted toward the other side (the side in the direction of arrow d) of the corner 91 of the light-blocking member 90A is fastened to the second portion 220B.

[0073] The third portion 230B of the leading runner 160B extends obliquely away from the curtain rail 110 toward one side in the first direction (the side indicated by the arrow c when focusing on the light-blocking member 90A). Furthermore, the third portion 230B extends from an end of the second portion 220B on one side in the second direction (the side indicated by the arrow e) toward one side in the first direction in a third direction different from the second direction (the width direction of the curtain rail 110). In this embodiment, the third direction is a direction inclined with respect to the first direction. More specifically, the third direction is a direction inclined from the side indicated by the arrow d when focusing on the light-blocking member 90A toward the side indicated by the arrow c when focusing on the light-blocking member 90A, and from the side indicated by the arrow f toward the side indicated by the arrow e. For example, the fourth direction may be a direction inclined at an angle of 10° to 45° with respect to the first direction. In a fully closed state of light blocking members 90A, 90B in which leading runner 160B has reached its reach limit and leading runner 160 has also reached its reach limit, end 230Be of third portion 230B of leading runner 160B is closer to pulley case 130a in the first direction than second portion 220 of leading runner 160. Also, in the fully closed state, there is a gap in the second direction between third portion 230B of leading runner 160B and the end of second portion 220 of leading runner 160. A through-hole (not shown) is formed in third portion 230B as a fastening portion with which a hook (not shown) provided on light blocking member 90A can engage, and by the hook engaging with this through-hole, corner portion 91 of light blocking member 90A is fastened to third portion 230B.

[0074] The fourth portion 240 of the leading runner 160B extends from an end portion on the other side in the first direction of the first portion 300 of the leading runner 160B (the side in the direction of arrow d when focusing on the light-shielding member 90A) toward the side (the side in the direction of arrow f) opposite the side to which the second portion 220B extends (the side in the direction of arrow e) with respect to the first portion 300. In this embodiment, the length of the fourth portion 240 in the second direction is shorter than the length of the second portion 220B in the second direction. For example, the length of the fourth portion 240 in the second direction may be approximately half the length of the second portion 220B in the second direction. The fourth part 240 has a through hole (not shown) formed therein as a fastening part with which a hook (not shown) provided on the light-shielding member 90A can engage, and by the hook engaging with this through hole, the second part 93, which is positioned offset from the first part 92 of the light-shielding member 90A to the other side (the side in the direction of arrow d), is fastened to the fourth part 240.

[0075] According to such a leading runner 160B, similar to the leading runner 160, waves at equal intervals P are formed on the light blocking member 90 engaged with the plurality of runners 181.

[0076] Furthermore, with leading runner 160B, first region 92 of light-blocking member 90A engages with second portion 220B of leading runner 160B, so that first region 92 of light-blocking member 90A is oriented in a second direction (in this embodiment, a second direction perpendicular to the first direction) that intersects with the longitudinal direction (first direction) of curtain rail 110. Therefore, with leading runner 160B, the waves of light-blocking member 90A are formed more clearly.

[0077] Furthermore, according to the leading runner 160B, the second region 93 of the light blocking member 90A is engaged with the fourth portion 240 of the leading runner 160B, so that the second region 93 of the light blocking member 90 is oriented in a second direction (in this embodiment, a second direction perpendicular to the first direction) that intersects with the longitudinal direction (first direction) of the curtain rail 110. Therefore, according to the leading runner 160 according to this embodiment, the waves of the light blocking member 90A are formed even more clearly.

[0078] Furthermore, according to the leading runner 160B, the corner 91 of the light blocking member 90A engages with the third portion 230B of the leading runner 160B, so that when the light blocking members 90A, 90B are in a fully closed state, the corner 91 of the light blocking member 90A is located on the pulley case 130a side (the side on which the leading runner 160B moves toward the fully closed state) with respect to the corner 91 of the light blocking member 90B. Thus, in the double-opening type curtain device 100B, the corner 91 of the light blocking member 90B is a full-close regulating portion that regulates the position of the leading runner 160B when the light blocking members 90A, 90B are in a fully closed state. Therefore, in this embodiment, the third portion 230B of the leading runner 160B extends in the third direction so that when the light blocking members 90A, 90B are in a fully closed state, the corner 91 of the light blocking member 90A is located on the side on which one leading runner 160B moves toward the fully closed state with respect to the full-close regulating portion. As described above, the third direction includes a component of the first direction. Therefore, when the light blocking members 90A, 90B are in the fully closed state, the third portion 230B of one of the leading runners 160B extends in the first direction so that the corner 91 of the light blocking member 90A fastened to the one of the leading runners 160B is positioned on the side of the fully closed regulating portion where the one of the leading runners 160B moves toward the fully closed state. According to this embodiment, when the light blocking members 90A, 90B are in the fully closed state, the light blocking members 90A and 90B overlap when viewed from one side in the second direction (the side in the direction of arrow e), preventing a gap from occurring between the light blocking members 90A and 90B.

[0079] In this embodiment, an example in which the third portion 230B extends in the third direction has been described, but the third portion 230B may extend in the first direction.

[0080] Furthermore, in this embodiment, an example has been described in which the second portion 220 and the third portion 230 of the leading runner 160 extend toward one side in the width direction of the curtain rail 110 (the side in the direction of arrow e). However, as a modification of this embodiment, as shown in Fig. 9, the second portion 220 and the third portion 230 of the leading runner 160 may extend toward the other side in the width direction of the curtain rail 110 (the side in the direction of arrow f). In this way, it is possible to widen the gap between the leading runner 160 and the third portion 230B of the leading runner 160B.

[0081] Furthermore, although the present embodiment has been described with reference to an example of a double-opening curtain device, a modified example in which the leading runner 160B according to the present embodiment is applied to a single-opening curtain rail may also be configured. In this modified example, the leading runner 160B may move in the direction of arrow c and, when it reaches its limit at or near the boundary BB (see FIG. 8 ) between the curtain rail 110 and the pulley case 130a, the light-blocking member 90A may be fully closed. In this modified example, when the leading runner 160B reaches its limit at or near the boundary BB and the light-blocking member 90A is fully closed, the third portion 230B of the leading runner 160B extends beyond the boundary BB to a position overlapping the pulley case 130a when viewed from the second direction. That is, in this modified example, in the fully closed state, third portion 230B of leading runner 160B extends in the first direction so that corner 91 of light-blocking member 90A fastened to leading runner 160B is located on the side of boundary BB where leading runner 160B moves toward the fully closed state. In this manner, boundary BB between curtain rail 110 and pulley case 130a is a fully closed state determining portion that determines the position of leading runner 160B in the fully closed state of light-blocking member 90A. In this modified example, third portion 230B of leading runner 160B extends in the first direction so that, in the fully closed state of light-blocking member 90A, corner 91 of light-blocking member 90A fastened to leading runner 160B is located on the side of full closed state where leading runner 160B moves toward the fully closed state with respect to the full closed state determining portion.

[0082] Although the present invention has been described above using the first to third embodiments as examples, the configuration of the leading runner is not limited to the first to third embodiments.

[0083] For example, in the above-described first and second embodiments, examples have been described in which the leading runners 160, 160A include the third portions 230, 230A, but as a modification of the first and second embodiments, the leading runners 160, 160A may not include the third portions 230, 230A. Also, in the above-described third embodiment, an example has been described in which the leading runner 160B includes the fourth portion 240, but as a modification of the third embodiment, the leading runner 160B may not include the fourth portion 240.

[0084] In the first to third embodiments described above, examples have been described in which the first portions 300 of the leading runners 160, 160A, 160B include the arms 210, 210A, 210B, but the leading runners do not have to include arms. When the leading runners do not include arms, the second portions 220, 220A, 220B only need to extend in the second direction from any part of the first portion 300.

[0085] Furthermore, in the above-described first to third embodiments, examples have been described in which the second portions 220, 220A, and 220B extend in the second direction from a portion of the first portion 300 on one side in the first direction, and the connecting portion is located on a portion of the first portion on the other side in the first direction. However, the positional relationship between the second portion and the connecting portion in the first portion 300 is not limited to this. For example, the second portions 220, 220A, and 220B may extend in the second direction from a portion of the first portion 300 on the other side in the first direction, and the connecting portion may be located on a portion of the first portion on one side in the first direction.

[0086] Furthermore, the leading runners 160, 160A, and 160B described in the first to third embodiments are merely exemplary configurations. The configuration of the leading runner is not particularly limited as long as the leading runner has a first portion extending in a first direction, which is a direction along the longitudinal direction of the curtain rail when attached to the curtain rail, and a second portion extending from the first portion in a second direction intersecting the first direction, the first portion having a connection portion that connects to an attachment member to which multiple runners following the leading runner are attached, and the second portion having a fastening portion for fastening a light-blocking member attached to the curtain rail.

[0087] In addition, those skilled in the art can appropriately modify the present invention in accordance with conventionally known knowledge. As long as such modifications still comprise the structure of the present invention, they are of course included in the scope of the present invention. [Explanation of symbols]

[0088] 90, 90A, 90B...light blocking member, 110...curtain rail, 160, 160A, 160B...leading runner, 181...runner, 190...pitch keeping tape (mounting member), 211hc...through hole (connection portion), 220, 220A, 220B...second portion, 221...through hole (fastening portion), 230, 230A, 230B...third portion, 240...fourth portion, 300...first portion

Claims

1. A leading runner at the front of a plurality of runners attached to a curtain rail, a first portion extending in a first direction that is a direction along the longitudinal direction of the curtain rail when the leading runner is attached to the curtain rail; a second portion extending from the first portion along a second direction intersecting the first direction; Equipped with The first portion has a connection portion for connecting the leading runner to a mounting member to which a plurality of subsequent runners are attached, The second portion is provided with a fastening portion for fastening a light blocking member attached to the curtain rail, the leading runner.

2. the second portion extends along the second direction from a portion on one side of the first portion in the first direction, The front runner according to claim 1 , wherein the connecting portion is located on the other side of the first portion in the first direction.

3. 3. The front runner according to claim 2, further comprising a third portion extending from a portion of the first portion on the other side in the first direction toward a side to which the second portion extends, using the first portion as a reference.

4. the second direction is a direction perpendicular to the first direction, The lead runner of claim 3 , wherein the third portion is parallel to the second portion.

5. the second portion extends obliquely with respect to the first portion toward the one side in the first direction, The front runner according to claim 3 , wherein the third portion extends obliquely with respect to the first portion toward the other side in the first direction.

6. The front runner according to claim 2 , further comprising a third portion extending from an end of the second portion toward the one side in the first direction.

7. The front runner according to claim 6, wherein the third portion extends obliquely so as to move away from the curtain rail toward the one side in the first direction.

8. 8. The front runner according to claim 6, further comprising a fourth portion extending from the other end of the first portion in the first direction toward a side opposite to the side to which the second portion extends, with the first portion as a reference.

9. The leading runner according to claim 6 or 7, wherein the third portion extends in the first direction so that, when the light-shielding member is in a fully closed state, a corner at an end of the light-shielding member fastened to the leading runner in the first direction is positioned on the side where the leading runner moves toward the fully closed state relative to a fully closed determining portion that determines the position of the leading runner in the fully closed state.

Images