curtain rail runner

Abstract

To make it possible to suppress displacement of a runner to improve appearance while suppressing contact between the runner and a curtain rail, and to suppress operation of a force on the curtain rail.SOLUTION: A curtain rail runner (100) freely movably provided along a rail groove of a curtain rail (300) includes: a running part (1) running along the curtain rail; a fitting part (3) fitting the curtain (200); and a holder (5) holding the running part and the fitting part. The holder has a facing part (60) facing a running route. The facing part has a flat surface part (61) crossing the running direction and a notch part (62) facing the rail groove.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a runner for a curtain rail. [Background technology]

[0002] A runner that can be attached to a curtain rail so as to be able to move freely is known (see, for example, Patent Document 1). The runner has rotatable wheels on both sides of the runner body. As the runner runs inside the curtain rail, foreign matter adhering to the curtain rail or variations in the wheel's molding can prevent both wheels from rotating perfectly in sync, resulting in a difference in rotation between the two wheels. In this case, one wheel momentarily locks and the other wheel rotates around it, creating a circular motion, which acts on the runner, trying to move sideways. When this behavior occurs alternately on both wheels, the runner snakes along the rail groove, and when the runner turns sideways, it comes into contact with the curtain rail, generating a contact noise. Therefore, in order to prevent contact between the runner and the curtain rail, a runner has been proposed in which the surface of the runner body that faces the curtain rail is curved. By curving the surface of the runner body that faces the curtain rail, the allowable rotation angle of the runner before contacting the curtain rail can be increased, making it an effective measure to prevent contact between the runner and the curtain rail. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Utility Model Registration No. 3196632 Summary of the Invention [Problem to be solved by the invention]

[0004] However, if the surface of the runner body is curved, when the curtain is opened, the runners come into line or point contact with each other, causing misalignment, and the runners end up lined up in an offset state, which looks unattractive. Furthermore, when a curtain is opened by the power of a motor, like an electrically operated curtain, the leading runner moves to a predetermined limit position, so the runners come into close contact with each other near the limit position in the opening direction. If a force acts on the runners when they are misaligned, there is a problem in that the force acts on the curtain rail via the runner in a direction that widens the rail groove.

[0005] Therefore, the present invention has been made to solve the above problems, and provides a technology that can prevent contact between the runner and the curtain rail, prevent the runner from shifting, improve appearance, and prevent force from acting on the curtain rail. [Means for solving the problem]

[0006] One aspect of the present invention is a curtain rail runner that is arranged to run freely along the rail groove of a curtain rail, and comprises a running section that runs along the curtain rail, an attachment section to which a curtain is attached, and a holder that holds the running section and the attachment section, wherein the holder has an opposing section that faces the running path, and the opposing section has a flat section that intersects with the running direction and a cutout section that faces the rail groove.

[0007] It is also preferable that the flat portion has a surface perpendicular to the running direction, and the notch is formed in an arc shape with the hanging direction of the curtain as its axis.

[0008] Preferably, the opposing portion connects the running portion and the mounting portion.

[0009] It is also preferable that the planar portion has a first plane formed at one end of the opposing portion along the hanging direction of the curtain, and a second plane formed at the other end of the opposing portion along the hanging direction of the curtain.

[0010] The notch is preferably provided at a position sandwiched between the first plane and the second plane.

[0011] Preferably, the opposing portions are provided at one end and the other end in the running direction of the holder.

[0012] Preferably, the flat surface portion is provided with a protrusion or a rib. [Effects of the Invention]

[0013] According to one aspect of the present invention, it is possible to reduce contact between the runner and the curtain rail while also reducing misalignment of the runner, improving the appearance and reducing the force acting on the curtain rail. [Brief explanation of the drawings]

[0014] [Figure 1] FIG. 10 is a diagram showing a curtain hung along a curtain rail in a closed state. [Figure 2] FIG. 10 is a diagram showing a curtain hanging along a curtain rail in an open state. [Figure 3] FIG. [Figure 4] FIG. [Figure 5] FIG. [Figure 6] FIG. [Figure 7] FIG. 10 is a perspective view of the main body of the mounting portion of the runner. [Figure 8] FIG. 10 is a perspective view of a holder for the runner. [Figure 9] 1A and 1B are diagrams illustrating problems with a conventional runner. DETAILED DESCRIPTION OF THE INVENTION

[0015] Preferred embodiments of the present invention will now be described with reference to the drawings.

[0016] As shown in FIGS. 1 and 2, a curtain 200 is hung from runners 100 that are freely movable on a curtain rail 300 attached to a window frame or the like. A rail groove is formed in the curtain rail 300 at a position that will be on the lower side when the curtain rail 300 is attached to the window frame or the like. The rail groove is the portion along which the runners 100 move. The runners 100 are mounted inside the curtain rail 300 so that they are free to move, with portions of the runners 100 protruding from the rail groove below the curtain rail 300. The curtains 200 are attached to the runners 100 at positions spaced apart at predetermined intervals along the width direction (horizontal direction). As shown in FIG. 1, the curtain 200 can be closed by moving the leading runner 100 of the multiple runners 100 toward one end of the curtain rail 300. As shown in FIG. 2, the curtain 200 can be opened by moving the leading runner 100 toward the other end of the curtain rail 300.

[0017] As shown in FIGS. 3 to 8, the runner 100 includes a running portion 1, an attachment portion 3, and a holder 5. As shown in FIGS. The running portion 1 is a portion that causes the runner 100 to run along the rail groove of the curtain rail 300. The running portion 1 includes a wheel 11 and a shaft portion 12. The wheel 11 is formed in a circular shape and is placed inside the curtain rail 300. The wheel 11 rotates around the shaft 12 to run along the rail groove of the curtain rail 300. A pair of wheels 11 is provided for each runner 100. The shaft 12 is formed of, for example, a rivet, and rotatably supports the wheel 11. The shaft 12 is inserted into the holder 5 and is disposed so that both ends protrude from the holder 5. The wheels 11 are rotatably mounted on both protruding ends.

[0018] The mounting portion 3 is a portion to which the curtain 200 is attached. The mounting portion 3 includes a main body portion 31 and a hanging tool 32. The main body 31 is a part that supports the hanging device 32. The main body 31 is rotatably provided at the lower end of the holder 5. The rotation axis of the main body 31 coincides with the up-down direction of the curtain 200 to be hung. As shown in FIG. 7, the main body 31 has a support portion 41, an insertion portion 42, a locking portion 43, and a protrusion portion 44.

[0019] Support portion 41 is a portion that supports suspender 32. Support portion 41 extends along the axial direction of main body 31. Support portion 41 is formed with a hole 41a through which suspender 32 passes, the hole 41a penetrating in a direction perpendicular to the extension direction of support portion 41. When main body 31 is attached to holder 5, support portion 41 is inserted into hole 52a of holder 5 (specifically, hole 52a of second holding portion 52, as shown in FIG. 8 ) and protrudes from holder 5. The insertion portion 42 is a cylindrical portion formed in a circular shape in a plan view, and is formed continuously with the support portion 41. When the main body portion 31 is attached to the holder 5, the insertion portion 42 is inserted into the hole 52a of the holder 5 and faces the inner wall surface of the hole 52a.

[0020] The locking portion 43 is a disk-shaped portion that is circular in plan view, and is formed contiguous with the insertion portion 42. When the main body portion 31 is attached to the holder 5, the locking portion 43 is locked to the holder 5 without being inserted into the hole 52a of the holder 5. The protrusions 44 are protrusions provided on the outer surface of the support part 41. For example, two protrusions 44 are provided, and are provided at positions opposite each other on the outer peripheral surface of the support part 41. The protrusions 44 prevent the main body part 31 from coming off the holder 5, and are formed at a height such that at least the apex of the protrusions 44 is positioned outside the hole 52a of the holder 5. The protrusion 44 may be configured to be embedded in the support part 41 via an elastic member so that a portion of it protrudes, and when the main body part 31 is inserted into the hole 52a of the holder 5, the protrusion 44 is pushed and embedded in the outer surface of the support part 41. Also, if the amount of protrusion from the outer surface of the support part 41 is small, an external force may be applied to push the protrusion 44 into the hole 52a of the holder 5. The number of protrusions 44 is not limited to two, and may be one, or three or more.

[0021] The hanging device 32 is the part from which the curtain 200 is hung. The hanging device 32 is formed, for example, in a ring shape, and a hook attached to the upper edge of the curtain 200 is engaged with the hanging device 32. The hanging device 32 is supported by the main body 31 in a state in which the hanging device 32 penetrates the vicinity of the lower end of the main body 31, and hangs downward from the main body 31.

[0022] The holder 5 connects the running portion 1 and the attachment portion 3 and holds the running portion 1 and the attachment portion 3 together. As shown in FIG. 8, the holder 5 includes a first holding portion 51, a second holding portion 52, and a connecting portion 53. The first holding part 51 is a part that holds the running part 1. The first holding part 51 is provided above the holder 5 when the runner 100 is attached to the curtain rail 300. The first holding part 51 is formed in a columnar shape with an axis extending in a direction intersecting (perpendicular to) the extension direction of the curtain rail 300 and the up-down direction of the hanging curtain 200. A hole 51a is formed in the center of the first holding part 51, through which the shaft part 12 of the running part 1 is inserted. The shaft part 12 is inserted into the hole 51a so that both ends thereof protrude from the first holding part 51. A wheel 11 is rotatably provided on each of the protruding ends of the shaft part 12.

[0023] The second holding portion 52 is a portion that holds the mounting portion 3. The second holding portion 52 is provided below the holder 5 when the runner 100 is attached to the curtain rail 300. The second holding portion 52 is formed in a generally circular plate shape with an axis extending in the vertical direction of the hanging curtain 200. A hole 52a is formed in the center of the second holding portion 52, through which the support portion 41 and insertion portion 42 of the mounting portion 3 are inserted. When the mounting portion 3 is held by the second holding portion 52, the support portion 41 protrudes downward from the second holding portion 52 through the hole 52a, and the insertion portion 42 faces the inner circumferential wall of the hole 52a. When the mounting portion 3 is held by the second holding portion 52, the lower surface of the locking portion 43 contacts the upper surface of the second holding portion 52, and the upper end of the protrusion 44 faces the lower surface of the second holding portion 52.

[0024] The connecting portion 53 connects the first holding portion 51 and the second holding portion 52. The connecting portion 53 is formed integrally with the first holding portion 51 and the second holding portion 52. The connecting portion 53 is formed, for example, in the shape of a pillar extending along the vertical direction of the curtain 200 to be hung. The connecting portions 53 are provided in pairs at positions facing each other in the running path (running direction) of the runner 100 when the runner 100 is attached to the curtain rail 300. Specifically, the connecting portions 53 connect one end and the other end of the first holding portion 51 and the second holding portion 52 along the running direction. In other words, when the runner 100 is attached to the curtain rail 300, the connecting portions 53 are provided side by side at an interval in the extension direction of the curtain rail 300. In other words, the connecting portions 53 face each other in the running direction of the runner 100 (extension direction of the curtain rail 300).

[0025] The connecting portion 53 has facing portions 60 that face the running path (rail groove of the curtain rail 300) of the runner 100. The facing portions 60 are provided at one end and the other end of the connecting portion 53 in the running direction. The facing portion 60 has a flat portion 61 and a notch 62 .

[0026] The flat portion 61 has a plane perpendicular to the running direction of the runner 100 (extension direction of the curtain rail 300). The flat portion 61 has a first flat surface 61a and a second flat surface 61b. The first plane 61a is formed near one end (upper end) of the facing part 60 along the hanging direction (vertical direction) of the curtain 200. The second plane 61b is formed near the other end (lower end) of the facing part 60 along the hanging direction (vertical direction) of the curtain 200. The first plane 61a formed near the upper end of the opposing portion 60 is formed to extend along the width direction of the opposing portion 60 (a direction perpendicular to the extension direction of the curtain rail 300, in other words, the axial direction of the shaft portion 12). The second plane 61b formed near the lower end of the opposing portion 60 is formed to extend along the width direction of the opposing portion 60 (a direction perpendicular to the extension direction of the curtain rail 300, in other words, the axial direction of the shaft portion 12). Here, the second flat surface 61b formed near the lower end of the facing portion 60 is formed to have a larger area than the first flat surface 61a formed near the upper end of the facing portion 60.

[0027] When the runner 100 is attached to the curtain rail 300, the notch 62 faces the rail groove of the curtain rail 300. Specifically, the notch 62 is provided at a position sandwiched between the first flat surface 61a and the second flat surface 61b. The cutout 62 is formed to follow an arc-shaped path with the axis being the hanging direction (vertical direction) of the curtain 200. That is, the cutout 62 protrudes most outward near the center in the width direction, and is cut out from the center toward the ends in the width direction.

[0028] As described above, in the runner 1 having the above configuration, the opposing portion 60 of the holder 5 has the notch 62. Therefore, even if one wheel 11 locks when the curtain 200 is opened or closed and the runner 100 attempts to rotate around an axis along the hanging direction (vertical direction) of the curtain 200, the notch 62 faces the rail groove, thereby increasing the allowable angle of the runner 100 until the opposing portion 60 contacts the rail groove. As a result, the runner 100 will not contact the curtain rail 300 unless it rotates significantly, thereby minimizing contact between the runner 100 and the curtain rail 300. Furthermore, the notch 62 has a curved, arc-shaped surface, which allows for gentle contact with the curtain rail 300.

[0029] On the other hand, in the case of runners 110 in which only the notch 62 is formed in the opposing portion 60, as shown in Figure 9(a), when the curtain 200 is opened, the runners 110 come into line or point contact with each other, causing misalignment in the width direction of the curtain rail 300, and the runners 110 are lined up in a misaligned state, which does not look good. Also, when the curtain 200 is opened by the power of a motor, such as in the case of an electrically opened and closed curtain 200, the leading runner 110 moves to a predetermined limit position, so the runners 110 come into close contact with each other near the limit position in the opening direction. If a force is applied to the runners 110 in a misaligned state, there is a problem that the force acts on the curtain rail 300 via the runner 110 in the direction of widening the rail groove 310 (direction of arrow A), as shown in Figure 9(b).

[0030] However, because the opposing portions 60 of the holders 5 of the runners 1 have flat portions 61, when the curtain 200 is closed and the runners 100 come into contact with each other, the flat portions 61 perpendicular to the running direction of the runners 100 come into surface contact near the upper and lower ends of the opposing portions 60, preventing the runners 100 from shifting in the width direction of the curtain rail 300 and allowing the runners 100 to be aligned along the curtain rail 300, improving the appearance. Furthermore, because the flat portions 61 are perpendicular to the running direction of the runners 100, the runners 100 are least likely to shift in the width direction of the curtain rail 300. Furthermore, because the runners 100 are aligned along the extension direction of the curtain rail 300 and do not shift in the width direction, it is possible to suppress the application of force to the curtain rail 300 that would widen the rail groove. Therefore, the flat portions 61 allow the runners 100 to be aligned with one another, improving the appearance, and the cutout portions 62 allow the runners 100 to be resistant to changes in behavior due to meandering of the runners 100.

[0031] Furthermore, since the facing portion 60 is formed on the connecting portion 53, it is not necessary to provide the facing portion 60 separately on the holder 5. Furthermore, since the flat portion 61 has a first plane 61a and a second plane 61b, adjacent runners 100 above and below the holder 5 can come into contact with each other, and the runners 100 can be stably aligned along the curtain rail 300. Furthermore, since the opposing portions 60 are provided at one end and the other end in the running direction of the holder 5, contact between the runner 100 and the curtain rail 300 can be minimized no matter which way the curtain 200 is moved along the curtain rail 300, and the runners 100 can be aligned along the curtain rail 300, resulting in a good appearance.

[0032] <Other> While the preferred embodiments of the present invention have been described above, the present invention is not limited to the above embodiments and includes all aspects encompassed by the concept of the present invention and the scope of the claims. Furthermore, each configuration may be appropriately and selectively combined to achieve at least some of the above-described problems and effects. For example, the main body 31 of the mounting part 3 may be formed integrally with the support part 41, the insertion part 42, the locking part 43, and the protrusion part 44, or some of the components may be configured separately. Furthermore, protrusions or ribs may be provided on the flat surface portion 61. By providing protrusions or ribs on the flat surface portion 61, the contact area between the flat surface portions 61 of adjacent runners 100 can be reduced, and the noise generated when they come into contact can be reduced. Furthermore, the flat portion 61 is not limited to having both the first flat surface 61a and the second flat surface 61b, and may have only one of them. Furthermore, the cutout portion 62 is not limited to being formed so as to follow an arc-shaped path with the hanging direction (vertical direction) of the curtain 200 as its axis, but may be formed so as to follow an elliptical path, or may be formed by chamfering the corners of the opposing portion 60. Furthermore, the cross section of the notch 62 of the facing portion 60 that faces the rail groove may be formed to be smaller. In this case, the facing portion 60 is formed in a stepped shape, and the portion that faces the rail groove is recessed toward the inside of the holder 5, so that the allowable angle of the runner 100 until the facing portion 60 contacts the rail groove can be increased. [Explanation of symbols]

[0033] 1 Running part 11 Wheels 12 Shaft 3 Mounting part 31 Main body 32 Lifting equipment 41 Support part 42 Insertion section 43 Locking part 44 Protrusion 5 Holder 51 First holding part 52 Second holding part 53 Connecting part 60 Opposing part 61 Plane part 61a First Plane 61b Second Plane 62 Notch 100 Runners 200 Curtains 300 Curtain Rail

Claims

1. A curtain rail runner that is provided so as to be able to run along a rail groove of a curtain rail, a running section that runs along the curtain rail; A mounting portion to which the curtain is attached; a holder that holds the traveling portion and the mounting portion, the holder has a facing portion facing the travel path, the opposing portion has a flat portion intersecting the running direction and a notch portion opposing the rail groove, The planar portion has a surface perpendicular to the traveling direction, The cutout portion is formed in an arc shape with the hanging direction of the curtain as its axis, the planar portion has a first planar surface formed at one end of the facing portion along the hanging direction of the curtain, and a second planar surface formed at the other end of the facing portion along the hanging direction of the curtain, The runner of a curtain rail is characterized in that the notch is provided at a position sandwiched between the first plane and the second plane.

2. The runner for a curtain rail according to claim 1, wherein the opposing portion connects the running portion and the mounting portion.

3. 3. The runner for a curtain rail according to claim 1, wherein the opposing portions are provided at one end and the other end in the running direction of the holder.

4. The runner for a curtain rail according to any one of claims 1 to 3, wherein the flat surface portion is provided with a protrusion or a rib.

5. A curtain rail runner that is provided so as to be able to run along the rail groove of the curtain rail, a running section that runs along the curtain rail; A mounting portion to which the curtain is attached; a holder that holds the traveling portion and the mounting portion, the holder has a facing portion facing the travel path, the opposing portion has a flat portion intersecting the running direction and a notch portion opposing the rail groove, A curtain rail runner characterized in that the flat surface is provided with a protrusion or rib.

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