TWM516926U - Safety structure of curtain bead string - Google Patents

Description

Safety structure of curtain bead chain

The present invention relates to a safety structure of a curtain bead chain, and more particularly to a non-directional snap-fit fixing structure for allowing the curtain bead chain to be disconnected when the proper load weight is exceeded, so as to be able to be forced away. The innovative safety structure of the curtain bead chain is more convenient when the broken ends are stuck.

According to the general curtain, the curtain is mainly operated by a drawstring or a bead chain, so that the cord can be pulled up and down (or laterally) to be folded or unfolded. Therefore, it can be seen that the drawstring or the bead chain is a medium for the user to operate the curtain. For example, the above-mentioned folding or unfolding cord is mainly used for winding a fabric on a rotating shaft, and the rotating shaft is connected with a retractor, and a bead chain (drawing rope) is arranged on the retractor. The bead chain is pulled to control the retractor to drive the rotating shaft to rotate forward or reverse, thereby controlling the rising or falling of the fabric.

Since the bead chain is an annular body and has a relatively high toughness, if the child's neck is inadvertently wound around the bead chain, it is prone to accidents that cannot be suffocated and suffocated. Therefore, in order to avoid the dangerous event that the bead chain cannot be broken off due to the entanglement of the child's neck, a safety device has been developed in the existing curtain structure, such as the Chinese Patent Publication No. M485682 "Bead Chain Drawstring Safety Fastener Structure" "Patent Case, Announcement No. M400280 "Safety Device for Curtain Bead Chain" Patent Case, etc., the patent mainly uses the main fastener and the sub-fastener window to insert and bond the beads at both ends of the curtain cord. Or the first set of shafts and the second set of shafts are respectively connected to the curtain bead chain, and a sleeve is sleeved on the outer side of the first set of shafts and the second set of shafts, so that the two end curtain bead chains are connected to each other. It can drive the opening of the curtain. Although the above patent can be used to detach the safety fastener device by pulling force when the user is entangled by the bead chain, the safety fastener of the above patent is used. The device is tubular and has a certain thickness. In operation, the safety fastener device is stuck outside the bead chain seat, and the bead chain can not be formed into a circulating operation through the bead chain carousel. No .

The reason is that, in view of this, the creators have been researching and improving the lack of prior technology for many years of experience in the design and development and actual production of the relevant industries, so they have developed a safety bead chain structure (M508274). The safety bead chain structure of the curtain is mainly provided with a bead kit and a fitting member at both ends of the bead chain, wherein the sleeve has a groove, and at least two first abutting portions are provided around the inner diameter of the groove, and The fitting member is provided with a second abutting portion corresponding to the first abutting portion.

Although the above M508274 case can prevent the child from winding around the neck and the whole bead chain can be cycled on the bead chain turntable, however, since the inner diameter of the groove of the bead body kit is only provided with two first abutting portions, the embedded The second abutting portion is also provided only in the corresponding first abutting portion. Therefore, it is necessary to have directivity when applying and fixing each other, so that the first abutting portion corresponds to the second abutting portion. , causing troubles in assembly.

The main purpose of the present invention is to provide a safety structure of a curtain bead chain, which is mainly provided with a structure capable of being locked and fixed to each other in a non-directional state at the two ends of the curtain bead chain capable of being disconnected, so that the two broken The end is more convenient in the operation of the snapping, and can adjust the size of the convex protrusion of some of the face of the convex snap ring through the molding, and change the fastening of the snap between the bead kit and the fitting to reach Adjust the effect of the weight of the curtain bead chain.

A safety structure of a curtain bead chain, the curtain bead chain comprising a rope body, a plurality of beads arranged equidistantly on the rope body and a safety bead buckle; the safety bead buckle comprises a bead kit and a a fitting member, the bead kit and the fitting member are respectively disposed at two ends of the curtain bead chain capable of being force-disengaged, and the bead kit has a groove, and the groove wall surface is adjacent to the opening thereof a convex snap ring circumferentially surrounding the inner diameter of the groove, and the convex snap ring is formed by at least 12 cut surfaces, each of the cut surfaces being equiangularly spaced, The fitting member has an insertion section, and the insertion section is radially recessed with a concave card groove circumferentially surrounding the outer peripheral wall thereof, and the concave card groove is formed by at least 12 cutting faces, each of the cutting faces The equiangular spacing is set, and the embedded segment can be embedded in the groove in a non-directional state.

The safety structure of the curtain bead chain as described above, wherein the convex snap ring has at least two cutting faces and then protrudes in a radial direction, so that the surface of the convex snap ring has a partial convex shape.

The advantages of this creation are:

1. The safety structure of the curtain bead chain of the present invention, wherein the convex wall of the groove wall surface of the bead assembly is radially adjacent to the opening thereof, and a convex snap ring is arranged around the inner diameter of the groove, and the convex snap ring is At least 12 cut surfaces are arranged, each of the cut surfaces is equiangularly spaced, and the embedded portion of the fitting member is radially recessed with a concave card groove circumferentially surrounding the outer peripheral wall thereof, the concave card slot being at least 12 Each section is formed by a ring, and each of the sections is equiangularly spaced so that the embedded section can be embedded in the groove in a non-directional state to facilitate assembly.

2. The safety structure of the curtain bead chain of the present invention can change the load weight of the curtain bead chain by adjusting the radial convex size of the cutting surface provided by the equiangular spacing on the convex snap ring, so that the manufacturer can modify the manufacturing.

3. The safety structure of the curtain bead chain of the present invention can be inserted through the beading kit and the fitting member, so that the bead chain of the curtain can be pulled by the external force and the external force pulling force exceeds the engagement between the bead body kit and the fitting member. When connecting the force, if the child is around the neck, the bead kit and the fittings at the ends of the bead chain can be released from the loosening, so that the curtain bead chain is disconnected without the curtain bead chain winding around the neck. Causes danger and achieves the effect of protecting children's safety.

4. The safety structure of the curtain bead chain of the present invention is formed by the engagement of the corresponding fittings of the bead body kit to form a safety bead buckle with a general shape of the bead shape, so that the overall curtain bead chain is wound around the bead. When the bead chain turntable in the chain seat is cycled, the user's operation convenience is further increased.

In order to make the technical content, creative purpose and the effect achieved by this creation more complete and clear, please elaborate below, and please refer to the drawings and drawings:

Please refer to the first to third figures. The first figure reveals the three-dimensional appearance of the safety structure of the curtain bead chain of the present invention applied to the curtain, and the second figure reveals the safety structure and beads of the curtain bead chain of the present creation. The three-dimensional schematic diagram of the chain carousel, the third figure reveals an exploded perspective view of the safety structure of the curtain bead chain of the present invention.

First of all, the curtain bead chain (A) of the present invention is wound around a bead chain turntable (B), the bead chain turntable (B) is mounted in a bead chain seat (C), and the bead chain seat (C) is remounted. At one end of the curtain rod (D), the bead chain turntable (B) passes through the bead chain seat (C) to transmit a linkage rod (not shown), which fixes the upper end of the curtain (E) when pulling the curtain bead chain (A) Drive the bead chain turntable (B) to rotate, and thereby use the linkage rod to drive the curtain (E) to wind up or down.

Wherein, the curtain bead chain (A) mainly comprises a rope body (1), a plurality of beads (2) equidistantly disposed on the rope body (1), and a safety bead disposed at the break of the rope body (1) Buckle (3).

Please refer to the third, fourth, fifth and sixth figures. The safety bead button (3) comprises a beading kit (31) and a fitting member (32), and the beading kit (31) and the fitting member (32) are respectively disposed on the cord of the curtain bead chain (A) ( 1) Both ends of the force-disengageable; the bead assembly (31) has a groove (311), and the wall surface of the groove (311) is provided with a convex snap ring (312) adjacent to the opening of the groove (311). The convex snap ring (312) is radially protruded from the wall surface of the groove (311) and surrounds the inner circumference of the groove (311), and the convex snap ring (312) is composed of at least 12 cut surfaces (3121) Each of the cut surfaces (3121) is equiangularly spaced. In the embodiment disclosed in the drawings of the present invention, the convex snap ring (312) is formed by 18 cut surfaces (3121); The fitting (32) has an embedding section (321), and the embedding section (321) is provided with a concave card slot (322), and the concave card slot (322) is radially recessed from the outer peripheral wall of the embedding section (321) while the edge Surrounded by a peripheral wall, the concave The card slot (322) is formed by at least 12 cutting faces (3221), and each of the cutting faces (3221) is equiangularly spaced. In the embodiment disclosed in the drawings of the present application, the recessed card slot (322) It is made up of 18 sections (3221).

Please refer to the second, fourth and fifth figures. When assembling, the curtain bead chain (A) is wound around the bead chain turntable (B) of the bead chain seat (C), and the bead set of the two ends of the curtain bead chain (A) is separated (31). And the fittings (32) are correspondingly engaged with each other, that is, the embedding section (321) of the fitting member (32) is correspondingly embedded in the groove (311) of the bead kit (31), and is a bead kit ( The convex snap ring (312) of the 31) and the concave card slot (322) of the fitting member (32) correspond to the concave and convex insertion card, so that the bead assembly (31) and the fitting member (32) can be firmly engaged.

In particular, the male snap ring (312) of the bead assembly (31) is radially protruded from the wall surface of the recess (311) and surrounds the inner circumference of the recess (311) while the fitting member (32) The concave card slot (322) is radially recessed from the outer peripheral wall of the embedding section (321) while surrounding the outer peripheral wall, thereby engaging the beading kit (31) and the fitting member (32) with each other. At this time, it is not necessary to pay attention to the angular direction in which the beading kit (31) and the fitting member (32) are fitted to each other, which improves the assembly convenience.

In addition, if a child inadvertently wraps the curtain bead chain (A) around the neck, the pulling force will be generated due to the child's own weight, and the pulling force exceeds the coupling force of the convex snap ring (312) and the concave card slot (322). When the bead kit (31) and the fitting (32) are separated, the curtain bead chain (A) is disconnected therefrom, thereby preventing the curtain bead chain (A) from continuing to entangle the child's neck to endanger life and thereby Become a security measure to protect children.

Please refer to the seventh picture. Further, the convex snap ring (312) further has at least two cutting faces (3121) extending in the radial direction so that the surface of the male snap ring (312) has a partial convex shape. By adjusting the size of the radial projection of some of the partial faces (3121) of the male snap ring (312), the fastening of the snap between the bead assembly (31) and the fitting (32) can be changed. Adjust the weight of the curtain bead chain (A) to carry the weight.

However, the above-described embodiments or drawings are not intended to limit the product, the structure, or the use of the present invention. Any changes or modifications of the ordinary skill in the art should be considered as not departing from the scope of the invention.

In summary, the present embodiment can achieve the expected use efficiency, and the specific structure disclosed therein has not been seen in similar products, nor has it been disclosed before the application, and has fully complied with the provisions of the Patent Law. And the request, the application for a new type of patent in accordance with the law, please forgive the review, and grant the patent, it is really sensible.

(A) ‧ ‧ curtain beads chain

(B)‧‧‧Bead chain turntable

(C) ‧‧‧Bead Chain Block

(D)‧‧‧ Curtain rods

(E)‧‧‧ 幔

(1)‧‧‧ropes

(2) ‧‧‧ beads

(3) ‧‧‧Safety bead buckle

(31)‧‧‧Bead kit

(311)‧‧‧ Groove

(312) ‧‧‧ convex snap ring

(3121)‧‧‧ Cut noodles

(32)‧‧‧ fittings

(321)‧‧‧ embedded section

(322)‧‧‧ concave card slot

(3221)‧‧‧ Cut noodles

The first picture: reveals the stereoscopic appearance of the safety structure of the curtain bead chain of this creation applied to the curtain.

The second picture: reveals the security structure of the curtain bead chain of this creation and the three-dimensional diagram of the bead chain turntable

The third picture: an exploded perspective view showing the safety structure of the curtain bead chain of the present creation

The fourth picture: a schematic exploded view showing the safety structure of the curtain bead chain of the present creation

Fig. 5: A schematic cross-sectional view showing the safety structure of the curtain bead chain of the present invention

Figure 6: A-A cross-sectional view of the fourth figure

Figure 7: Revealed in the A-A direction of the fourth figure, the convex snap ring of this creation changes the sectional shape of the section

(1)‧‧‧ropes

(2) ‧‧‧ beads

(31)‧‧‧Bead kit

(311)‧‧‧ Groove

(312) ‧‧‧ convex snap ring

(32)‧‧‧ fittings

(321)‧‧‧ embedded section

(322)‧‧‧ concave card slot

(3121)‧‧‧ Cut noodles

(3221)‧‧‧ Cut noodles

Claims (2)

A safety structure of a curtain bead chain, the curtain bead chain comprising a rope body, a plurality of beads arranged equidistantly on the rope body and a safety bead buckle; the safety bead buckle comprises a bead kit and a a fitting member, the bead kit and the fitting member are respectively disposed at two ends of the curtain bead chain capable of being force-disengaged, and the bead kit has a groove, and the groove wall surface is adjacent to the opening thereof a convex snap ring circumferentially surrounding the inner diameter of the groove, and the convex snap ring is formed by at least 12 cut surfaces, each of the cut surfaces being equiangularly spaced, The fitting member has an insertion section, and the insertion section is radially recessed with a concave card groove circumferentially surrounding the outer peripheral wall thereof, and the concave card groove is formed by at least 12 cutting faces, each of the cutting faces The equiangular spacing is set, and the embedded segment can be embedded in the groove in a non-directional state. The security structure of the curtain bead chain according to claim 1, wherein the convex snap ring has at least two tangential planes and then protrudes in a radial direction, so that the surface of the convex snap ring has a partial convex shape.