JPH07137Y2 - Plastic curtain hook with sewn pieces - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is made of a plastic having a sewn piece that is inserted into a fold formed at the upper end of the curtain and sewn to the fold by sewing for forming the fold. In particular, the present invention relates to improvement of the sewn piece in the curtain hook.

[Prior Art] Conventionally, in this type of curtain hook, in particular, a curtain hook with a variable hanging position having a hook body slidably engaged with the main body portion, a sewn piece on a thin flat plate is a main body portion. Is integrally formed on the back side of the curtain, and this sewing piece is inserted into the folds at the upper end of the curtain, and when the folds are sewn, the curtain cloth is sewn to the curtain by sewing with the curtain fabric. It was Since it is made of a plastic material, it is possible to adopt an integral molding process such as injection molding. Therefore, it is customary that the sewing piece is made of the same material as that of the main body. Further, since the sewn-in piece is directly sewn with the curtain fabric by the sewing machine, it is also sewn to the plastic itself and is formed into a thin wall.

[Problems to be solved by the invention] However, if the thickness is thin, the sewing machine can be sewn more easily than the thick one, but this time the strength is lowered, and if the curtain is used for opening and closing, it depends on the usage state. In some cases, due to the weight of the curtain, it may start to tear from the sutured portion, which is the most vulnerable to stress, and may become difficult to use in a relatively short period of time.
Also, regardless of whether it is thin or thick, the plastic sewn piece of plastic plate is sandwiched in the middle to sew the folds of the curtain together, so when sewing, the folds slip around the sewn piece, causing misalignment and sewing accurately. There are difficult drawbacks. Further, in particular, in the case of a hanging position variable type curtain hook in which the main body part is slidably engaged with the hook body, since the engaging means has a ratchet structure, in order to ensure its durability and stability of variable hanging position. However, it is necessary to select a strong plastic material, which results in a contradiction with the sewn piece that makes it easy to sew, and there is a limit in any material selection, which is also a problem in this regard. It was

Therefore, this kind of sewn-in type curtain hook is considered to be less versatile than the one of the insert type having the insert rod on the back side of the main body.

The purpose of this invention is to accurately and easily sew the folds of the curtain when the folds are sewn, without causing the folds to slip and misalign, and when the curtain is opened and closed, the stress due to the weight of the curtain is applied to the sewn portion. The point is to provide a sewn-in type plastic curtain hook that does not start to tear from the sewn portion even if it acts, and is excellent in strength and durability.

[Means for Solving the Problems] In order to solve the above problems, the present invention provides a plastic having a thin sewn piece to be sewn to the folds of the upper end of the curtain at the back side of the main body. In the curtain hook, the sewn-in piece is made of synthetic fiber cloth, and the sewn-in piece is formed integrally with the main body. And, as a means of molding integration, a plastic curtain hook in which the sewn piece is molded and integrated into the main body by insert molding is adopted. Further, among them, particularly, a plastic curtain hook having a variable hanging position having a hook body slidably engaged with the main body is adopted.

[Operation] Therefore, since the sewn-in piece is a synthetic fiber cloth, the sewing of the folds at the same time to the folds is easier than the conventional sewn piece made of the plastic material and extremely easy to sew. Moreover, unlike the conventional sewn piece of plastic material, there is no breakage of the sewing machine needle, and it has excellent workability and productivity.
Also, since it is a synthetic fiber cloth, the sewn part is superior in strength and durability compared to the conventional flat plastic, and the stress due to the weight of the curtain will tear even if it acts on the sewn part when the curtain is opened and closed. Nor. Even if it is inserted between the folds and sewn together with the folds, the sewn-in piece is a cloth made of synthetic fiber, so it is the same as sewing the cloths together, so the folds slip across the sewn piece. And the positioning is good, and the workability of sewing is significantly improved.

Also, in the case of a curtain hook in which the sewn-in piece is integrally molded by insert molding in the main body, the sewn-in piece is firmly integrated in the main body in the inserted state, so the stress due to the weight of the curtain sewn when the curtain was opened and closed. Even if it acts on the joint portion between the insert piece and the main body portion, it does not tear from the joint portion and has durability.

Further, particularly in the case of a curtain hook with a variable hanging position having a hook body slidably engaged with the main body portion, the main body portion that requires strength and the stitching that requires ease of sewing. Each of them has a particularly remarkable function and effect capable of simultaneously satisfying the contradictory requirements.

[Embodiment] FIG. 1 and FIG. 2 are a side view and a bottom view showing a hanging position variable type curtain hook according to the present invention.

In the drawings, reference numeral 1 is a main body portion, 2 is a hook body provided on the front side of the main body portion 1, and 3 is a sewing piece integrally formed on the back side of the main body portion 1. The hook body 2 is slidably engaged with the main body 1 by a ratchet mechanism and is fixedly engaged with the hook body 2. The sewn-in piece 3 is made of synthetic fiber cloth insertable on the back side of the main body 1.

Therefore, since the sewn-in piece 3 is made of cloth unlike the main body which requires strength and durability because it has an engaging structure, the sewn-in piece 3 can be inserted into the folds 5 on the upper part of the curtain 4. For example, as shown in FIG. 3, when the folds 5 are sewn, the folds 5 can be easily sewn with each other with the sewn-in piece 3 sandwiched between the folds 5 as if the fibers were sewn together. can do. In addition, since it is a sewing of fibers, so to speak,
The sewn portion 6 is strong and does not start to tear from the sewn portion even when a force due to the weight of the curtain when the curtain is opened and closed acts. Durable even for long-term use.

By the way, as the material of the sewn-in piece 3, any synthetic fiber cloth that can be joined to the main body 1 made of a plastic material can be applied. Particularly in view of mass productivity, synthetic fiber cloth that can be integrally molded with the main body 1 such as insert molding is preferable. The invention is not limited to the above embodiment. For example, the present invention can be applied not only to the variable hanging position type but also to a curtain hook in which the hook body is integrated with the main body.

[Effect of the Invention] As described above, the present invention is based on the idea of materially separating the main body part and the sewn piece that is sewn into the fold at the same time when the fold stitch is sewn. Since it is constructed as a synthetic fiber cloth that can be integrally molded with the main body, it is possible to provide a plastic curtain hook that has a sewing piece that is easy to sew with a sewing machine and that has excellent strength and durability.

[Brief description of drawings]

FIG. 1 is a side view of a curtain hook having a variable hanging position according to the present invention, FIG. 2 is a bottom view of the same, and FIG. 3 is a perspective view showing the same usage state. 1 ... Main body, 2 ... Hook body, 3 ... Sewing piece

Claims (3)

[Scope of utility model registration request] 1. A plastic curtain hook having a thin sewn piece on the back side of the main body section, which is sewn to the fold when the upper end of the curtain is folded, and the sewn piece is a synthetic fiber cloth. A plastic curtain hook characterized in that the sewn-in piece is formed integrally with the main body. 2. The plastic curtain hook according to claim 1, wherein the sewn piece is integrally formed with the main body by insert molding. 3. The plastic curtain hook according to claim 1 or 2, which is a curtain hook of variable hanging position, which has a hook body slidably engaged with the main body portion.