JP3438840B2 - Rail end cap common to both ends - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of rail end caps attached to both ends of a curtain rail having an asymmetrical cross sectional profile.

[0002]

2. Description of the Related Art As disclosed in Japanese Utility Model Laid-Open No. 3-125475, rail ends attached to both ends of a conventional curtain rail are provided with fitting recesses which have substantially the same shape as the contour of the curtain rail. The fitting recess of the rail end is elastically fitted onto the end of the curtain rail so that the rail end is detachably fixed to the end of the curtain. If the contour of the curtain rail was symmetrical in the front and rear, the left and right rail ends could be common.

It has also been known that instead of elastically connecting the curtain rail and the rail end cap, they are fixed via a connecting member. For example, one plate portion of the connecting member orthogonal to each other is screwed to the rail end cap and the other plate portion is screwed to the end of the curtain rail to fix the rail end cap to the curtain rail end.

[0004]

In recent years, curtain rails and rail end caps, which are highly decorative, have been widely used. Since the decorative curtain rail has an asymmetric cross section and a relatively complicated contour, it is not possible to turn the left rail end cap upside down, or flip it back and forth and turn it up and down to make the right rail end cap. . Therefore, the left and right rail end caps were manufactured separately. However, since the rail end cap, which is rich in decorativeness, has a complicated shape, there is a problem in that cost is increased if the left and right sides are manufactured separately.

The present invention has been made to solve this problem, and an object of the present invention is to attach a detachable rail rail to the end of a curtain rail having an asymmetric cross section and a complicated cross-sectional profile. The purpose is to provide end caps that are common to the left and right.

[0006]

In order to achieve the above object, the means adopted by the present invention has an inner peripheral contour enveloping a cross section of a curtain rail and a half-rotation of the curtain rail about a vertical center line. The fitting recess is formed on the end surface of the rail end cap on the curtain rail side. The curtain rail end is elastically fitted into the rail end cap, or the rail end cap and the curtain rail are connected via an angle-shaped connecting member. One plate part of the angle-shaped connecting member that is orthogonal to each other is screwed onto the inner bottom surface of the fitting recess so that it can be turned upside down, and the other plate part of the angle-shaped connecting member is inserted into the end of the curtain rail. Screw it in.

[0007]

Since the fitting recess formed on the inner end surface of the rail end cap on the curtain rail side is symmetrical with respect to the upper and lower center lines of the curtain rail cross section, the rail end cap is rotated 180 degrees with respect to the upper and lower center lines. Then, when it is rotated by 180 degrees with respect to the center line perpendicular to the cross section, the fitting recess after rotation is plane-symmetric with the fitting recess before rotation. Since the inner peripheral contour of the fitting recess envelops the cross section of the curtain rail, the fitting recess of the rail end cap can be fitted onto either the left or right curtain rail end.

At this time, the connecting member screwed on the upper and lower centerlines of the fitting concave surface is loosened by loosening the screw,
The coupling member after rotation is plane-symmetric with the coupling member before rotation.
In this way, the other plate portion of the angled coupling member can be screwed to either the right or left curtain rail end.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The rail end cap of the present invention will be described based on the embodiments shown in the drawings. As shown in FIG. 1, a metallic curtain rail 10 has rail end caps 20 of the same shape and rich in decorative resin, which are rich in decorativeness, at both ends. At both ends of the curtain rail 10, rings 11 for hanging the upper portions of both edges of the curtain (not shown) are arranged. The ring 11 is attached to a connecting member 30 connecting the curtain rail 10 and the rail end cap 20.

As shown in FIG. 2, the end of the curtain rail 10 fits into a fitting recess 21 provided on the end surface of the rail end cap 20 on the curtain rail side. The curtain rail 10 itself also has a highly decorative shape. The cross section of the curtain rail 10 has a circular shape on the front side and a box shape on the back side, and has an asymmetric and complicated outer peripheral contour in all directions. The connecting member 30 has an Angular shape, and one plate portion 31 orthogonal to each other is fixed to the inner bottom surface 22 of the fitting recess 21 by a set screw 33. The other plate 32
Is a set screw along the runner running plate of the curtain rail 10.
It is fixed to the curtain rail 10 by 34 and the nut 35. The plate portion 32 and the nut 35 are the runner traveling plate portion of the curtain rail 10.
A hole and a groove through which the ring 11 for hanging the curtain hook is formed are formed by hanging the curtain hook from the opening of 12 together.

A chain line C shown in FIG. 4 is an outer peripheral contour of a figure obtained by superimposing a cross section of the curtain rail and a cross section of the curtain rail rotated by 180 degrees about the vertical center line. The fitting recess 21 of the rail end cap 20 has an inner peripheral contour that envelops the outer peripheral contour. As shown in FIGS. 3 and 4, the fitting recess 21 of the end rail cap 20 has an inner bottom surface having at least two levels of depth, and one plate portion 31 of the connecting member 30 has a deep bottom surface.
The end surface of the curtain rail 10 abuts on the shallow bottom surface 23. A nut groove (24) parallel to the inner bottom surface (22) is provided on the back side of the deep bottom surface (22), and a nut (25) of a flat metal plate is inserted into the nut groove. A set screw hole 26 is formed in the inner bottom surface 22, and a set screw 33 for fixing one plate portion 31 of the connecting member 30 is passed through the set screw hole. When the set screw 33 is screwed into the nut 25, the plate portion 31 is firmly fixed to the inner bottom surface 22. The other plate 32 is a curtain rail
Secure to 10 with setscrew 34 and nut 35. Both end surfaces of the curtain rail 10 are plane-symmetric regardless of the shape of the cross section. As shown in FIG. 2, when one end of the curtain rail 10 is fitted into the fitting recess 21 of the rail end cap 20,
At least the front side should be joined firmly.

When the rail end cap 20 is rotated 180 degrees with respect to the vertical center line and then rotated 180 degrees with respect to the center line orthogonal to the cross section, the fitting recess after rotation becomes plane-symmetric with the fitting recess before rotation. Therefore, the other end of the curtain rail 10 can be fitted in the same manner as the one end. At this time, one plate portion 31 is set in the fitting recess 21 with a set screw 33.
With respect to the connecting member 30 fixed by, if the set screw 33 is loosened and the upper and lower sides are reversed and fixed again, the plate member 32 on the other side of the connecting member 30 is also the other end of the curtain rail because it becomes plane symmetric with that before rotation. Can be fixed to the section. As described above, the rail end cap 20 and the connecting member 30 can have the same right and left even if the cross section of the curtain rail 10 is asymmetric and has a complicated shape.

FIG. 5 is a front view of a synthetic resin rail end cap 40 according to the second embodiment of the present invention.
The connecting member 30 for connecting the rail end cap 40 and the ring 11 for hanging the curtain hook are exactly the same as those in the first embodiment. As shown in FIGS. 6 and 7, a fitting recess 21 is provided on the end surface of the rail end cap 40 on the curtain rail side. The inner peripheral contour of the fitting recess 21 encloses the cross section of the curtain rail and the one obtained by rotating it by 180 degrees about the upper and lower center lines. The fitting concave portion 21 has two steps of inner bottom surfaces 22 and 23, and the inner bottom surface 23 of the peripheral edge portion that abuts a part of the end surface of the curtain rail 10 is shallow. A set screw hole (26) for fixing one plate part (31) of the connecting member (30) is formed at a vertical center position of the deep inner bottom surface (22) other than the peripheral part, and a nut groove (24) is provided on the back side thereof.

First, the metal plate nut 25 is inserted into the nut groove 24, and the set screw 33 is passed through the groove of the plate portion 31 into the set screw hole 26. The set screw 33 is screwed into the nut 25, and the plate portion 31 is fixed to the inner bottom surface 22 of the end rail cap 40. Next, the end portion of the curtain rail 10 is externally fitted to the coupling member 30 and fitted into the fitting concave portion 21 of the end rail cap 40. Then, the set screw 34 is screwed into the nut 35 from below the curtain rail 10 to fix the other plate portion 32 of the connecting member 30 to the curtain rail 10. The two end rail caps can be arranged symmetrically with the fitting recesses facing each other. At this time, if one of the coupling members fixed to the end rail caps is turned upside down, the coupling member also becomes symmetrical. Therefore, the left and right end rail caps of the curtain rail are common.

In the embodiment, the inner bottom surface having two or more steps is formed in the fitting recess, but the inner bottom surface may be a single step, and the curtain rail end surface and the plate portion of the connecting member may abut on the same inner bottom surface. Further, in the embodiment, the plate portion of the connecting member is screwed to the fitting concave portion via the nut, but without using the nut, the set screw is directly screwed into the fitting concave portion to fix the connecting member to the rail end cap. It is also possible to do so. Further, in the embodiment, the rail end cap is fixed to the curtain rail via the connecting member, but the rail end cap can be elastically fitted and fixed to the curtain rail end without using the connecting member. Is.

[0016]

As described above, in the rail end cap of the present invention, the fitting recess for fitting the curtain rail in and the connecting member for the curtain rail fixed to the fitting recess can be arranged in plane symmetry. , Even if the outer peripheral contour of the cross section of the curtain rail is asymmetrical, it is possible to attach common rail end caps to both ends of the curtain rail, thereby making the rail end cap relatively rich in decorativeness. Is common, and the excellent effect of cost reduction is achieved.

[Brief description of drawings]

FIG. 1 is a front view showing a main part of a curtain rail to which a rail end cap of a first embodiment of the present invention is attached,

2 is a sectional view taken along line II-II of FIG.

3 is a vertical cross-sectional view through the set screw of the rail end cap of FIG. 1,

FIG. 4 is a side view showing an end surface of the rail end cap of FIG. 1 on the curtain rail side,

FIG. 5 is a view corresponding to FIG. 1 of the second embodiment,

6 is a view corresponding to FIG. 3 of the rail end cap of FIG. 5,

7 is a view corresponding to FIG. 4 of the rail end cap of FIG. 5,

[Explanation of symbols]

10: Curtain rail, 11: Ring, 12: Runner running surface, 20: Rail end cap, 21: Fitting recess, 22: Inner bottom surface, 23: Inner bottom surface, 24: Nut groove, 25: Nut, 26:
Set screw hole, 30: connecting member, 31: plate part, 32: plate part, 33:
Set screw, 34: Set screw, 35: Nut

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) A47H 1/00-23/00

Claims (3)

(57) [Claims] 1. An outer shape of the curtain rail (10) having an asymmetrical cross-sectional contour, which has a fitting concave portion (21) for internally fitting the end portion thereof, and when the left and right and the top and bottom are reversed, the shape before and after the reversal. Is a rail end cap having a plane symmetry, the inner peripheral contour of the fitting recess is a cross section of the curtain rail,
A rail end cap common to both ends, characterized in that it is formed so as to envelop it rotated by 180 degrees about the upper and lower center lines. 2. The fitting recess (21) has at least two inner bottom surfaces.
Curtain rails (10) are formed in steps and on the shallow inner bottom surface (23)
At least a part of the end surfaces of the connecting member are brought into contact with each other, and one plate portion (31) of the connecting member (30) orthogonal to each other is fixed to the deep inner bottom surface (22) via the set screw (33) so as to be able to be turned upside down. The rail end cap common to both ends according to claim 1, characterized in that the other plate portion (32) is fixed to the curtain rail (10) through a set screw (34). 3. A deep inner bottom surface is formed by setting a set screw hole (26) of a set screw (33) for fixing one plate portion (31) of the connecting member (30) on the vertical center line of the fitting recess (21). A nut groove (24) is provided on the back side of (22), and a nut (25) is provided in the nut groove.
2. The rail end cap common to both ends according to claim 1, wherein the plate portion is fixed to the inner bottom surface by inserting the set screw and screwing the set screw into the nut through the set screw hole.