JP2531674Y2 - Rail end cap - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an improvement in a rail end cap.

[Related Art] A rail end cap made of a synthetic resin is attached to an end surface of a curtain rail or the like. Conventional rail end caps are manufactured to fit loosely on curtain rails,
It has been manufactured to be fixed to the curtain rail using a mounting bracket and a mounting screw or to be fitted tightly to the curtain rail, and has been fixed to the curtain rail by a one-touch operation of simply pushing the curtain rail end face. The former is Kimiaki Jitsu
No. 56-9416, the latter being proposed as Japanese Utility Model Application No. 63-144994 (Japanese Utility Model Application Laid-Open No. 2-66170). In the former, a ring for hanging a curtain hook was separately mounted so as to be freely movable, and in the latter, the ring was integrally formed.

[Problem to be solved by the invention] The one-touch type fixed ring of the rail end cap not only applies excessive force to the curtain to limit the movement of the curtain hook, but the ring has a flat shape. Therefore, there has been a problem that it is easily damaged during packing or during use. The freely moving separate ring of the mounting bracket type rail end cap allows the curtain hook to move freely to some extent, and the ring is protected by the mounting bracket, so there is little damage, but the assembly has many parts There was a problem that it took time.

The present invention has been made to solve these problems, and an object of the present invention is to provide a rail end cap that has a small number of parts and can be attached to a curtain rail or the like with one touch, such as a curtain hook or the like. The object of the present invention is to provide a movable ring that is movable and hardly damaged.

[Means for Solving the Problems] In order to achieve the above object, the present invention employs a box-shaped main body that is fitted to an end of a rail such as a curtain or a blind, and a separate main body attached to the lower surface of the main body. In a rail end cap provided with a body ring, an endless ring hook portion hanging down from the lower surface of the main body is provided, a portion having a uniform cross section is provided at the lower center of the ring hook portion, and the cross section is one. The length of the ring hooking portion in the center line direction of such a portion is at least twice the axial width of the ring.

[Operation] The main body and the ring are simultaneously molded from synthetic resin in a state where the endless ring is hung on the ring hook portion, but the lower central portion where the ring of the ring hook portion is hung has a uniform cross section, Since the length of the portion along the center line of the ring hook portion is at least twice the width in the ring axial direction, the mold inside the ring can be easily pulled out. Since the main body and the ring are molded in a connected or assembled state, the number of parts is one.
And the assembling process is completely omitted. Since the box-shaped main body is elastically fixed simply by being pushed into the rail, it can be attached to the rail with one touch. Since the ring is rotatable about the shaft portion, the ring can escape from an excessive force, so that the ring is hardly damaged.

[Embodiment] The rail end cap of the present invention will be described based on an embodiment shown in the drawings.

As shown in FIGS. 1 and 2, the rail end cap 10 has a box-shaped main body 11 having an opening substantially equal to the outer shape of the rail 30, and an endless annular ring hooking portion 12 hanging from the outer bottom surface of the main body. And an endless ring 20 fitted to the hook. The ring hooking portion 12 is U-shaped when viewed from the left and right, and has an inner width larger than twice the diameter of the ring 20. The main body 11 and the ring 20 are manufactured by injection molding from a synthetic resin, and the ring 20 is molded in an assembled state in which the ring 20 is fitted.

FIGS. 3 to 6 show an example of a mold used for molding a ring 20 separate from the main body 11 in a state of being assembled into the main body 11. FIG. Except for a part of the ring hooking part 12 of the main body 11, a part is formed by a known mold, but a part of the ring hooking part 12 and the ring 20 fitted therein are formed by two-part molds 30, 31. Is done. The molds 30, 30 are the outer periphery of the ring 20 and the main body.
A space between the ring 11 and the ring hook 12 is formed, and is removed in the direction of the arrow in FIG. The molds 31 and 31 form the inner circumference of the ring 20 and the horizontal cylindrical portion of the ring hook portion 12, and after the molds 30 and 30 are removed, as shown in FIG.
Then, it is divided as shown by the arrow in FIG. FIGS. 1 and 2 show that the divided molds can be easily removed.
As shown in the figure, the lower center ring 20
This is because the cross section of the portion where the ring is hung is uniform, and the length of the portion along the center line of the ring hook portion is at least twice the axial width of the ring 20.

In the embodiment shown in FIGS. 7 and 8, the ring hook 12 hanging from the main body 11 has a C-shape when viewed from the left and right. ring
The inner peripheral side of the cross section of 20 is a chevron with a vertical angle of 90 degrees, and the inner peripheral side of the cross section of the ring hooking part 12 is also a chevron with a vertical angle of 90 degrees. Ring 20
Can swing back and forth along the arcuate inner peripheral surface of the ring hook portion 12.

Endless ring 20 from synthetic resin to endless ring hook 12
FIGS. 9 to 11 show an example of a mold used for simultaneous molding in a state in which is fitted. Ring hook of body 11
The part except 12 is formed by a known mold, but the ring hook portion 12 and the ring 20 are formed by a two-part mold 30 and a four-part mold 32. The molds 30, 30 form the majority of the ring hook 12 and the outer periphery of the ring 20, and are pulled out in the direction of the arrow in FIG. The four-part mold 32 includes the inner peripheral surface of the ring 20 and the ring hook 12
After the mold 30 is removed, as shown by an arrow in FIG. 11, the mold is divided into two parts along the ring hooking part 12 and separated from the ring 20 and then divided into two parts left and right. Removed. The split mold 32 easily comes off because the cross section of the ring hooking portion of the ring hooking portion 12 is uniform along the center line of the ring hooking portion over a length of at least twice the axial width of the ring 20. It depends.

Since the injection molded product is a finished product as it is, the step of assembling the rail end cap can be omitted completely. Although the main body 11 and the ring 20 are separate bodies, they are formed in an assembled state from the beginning, so that the number of parts is one. The endless ring 20 is slidable along the ring hook 12 and moves freely without opposing an external force.
20 damage is prevented beforehand. Since the ring 20 is movable, the curtain hook to be hung is relatively free,
It is rare that excessive force is applied to curtains or the like.

[Effects of the Invention] As described above, since the rail end cap of the present invention can be easily formed with the main body and the ring attached, the conventional rail end cap is composed of the conventional main body, metal fittings, mounting screws, and a ring. It can be fitted to the rail with one touch compared to the case where the ring is fitted and fixed to the rail via metal fittings, the number of parts is only one, and the trouble of attaching the ring and the screw is unnecessary. Therefore, the production cost,
An excellent effect that the installation cost and the inventory management cost are greatly reduced can be obtained. Also, compared to the conventional body that can be fitted to the rail with one touch and a flat ring that is integrally fixed, the rail end cap of the present invention has a movable ring, and the ring is used during packing and during use. Even if an excessive force acts on the ring, the ring is prevented from being damaged, and the curtain hook and the like to be hung on the ring are not so much restricted.

[Brief description of the drawings]

1 is an inner side view of a rail end cap according to one embodiment of the present invention, FIG. 2 is a sectional view taken along the line II-II of FIG. 1, and FIG. 3 is a mold for molding a ring hook and a ring. FIG. 4 is a sectional view taken along the line IV-IV of FIG. 3, FIG. 5 and FIG. 6 are a front view and a side view of a ring or a hook portion, and a state in which a ring inner circumference forming die is removed. Is shown. 7 and 8 are diagrams corresponding to FIGS. 1 and 2 of another embodiment, FIG. 9 is a diagram corresponding to FIG. 3 of the embodiment of FIG. 7, and FIG. FIG. 11 is a sectional view taken along the line XX of FIG. 11, and FIG. 11 is a schematic view showing a state in which the ring inner circumference forming die of FIG. 10 is removed. In the drawings, reference numeral 10 denotes a rail end cap, 11 denotes a main body, 12 denotes a ring hook, 20 denotes a ring, and 30 denotes a rail.

Claims (1)

(57) [Scope of request for utility model registration] 1. A box-shaped main body (11) fitted to an end of a rail (30) such as a curtain or a blind, and an endless annular ring hook (12) integrally formed on a lower bottom surface of the main body. When,
An endless ring (20) molded from a synthetic resin together with the main body in a state of being hung on the ring hooking portion, wherein the ring hooking portion is a vertical surface in the front-back and left-right directions passing through the center. Symmetric with respect to
A portion having a uniform cross section is formed at the center of the ring hook portion where the endless ring is hooked, and the portion having a uniform cross section has a length along the ring hook portion center line that is the endless ring. A rail end cap that is at least twice the axial width of the rail end cap.