JPS642953Y2 - - Google Patents

Description

[Detailed description of the invention] Technical field This invention relates to a connecting device for an operating string for raising and lowering the slats of a blind.

BACKGROUND ART Conventionally, one end of a lifting string 3 for lifting and lowering each slat 2 of a blind 1 as shown in FIG. 1 is inserted through each slat 2 and suspends and supports a bottom rail 4. Headbox 5
It hangs down from one side, and a single operating string 7 is connected to its lower end via a connector 6. When the operating string 7 is operated, this coupling device 6 transmits the operating force equally to the two elevating strings 3 to move the elevating strings 3 the same distance, without tilting each slat 2 in the longitudinal direction. It is for raising and lowering.
The detailed structure of the connector 6 will be explained with reference to FIG. 2. The connector 6 is formed into a substantially cylindrical shape by screwing together an upper cylinder part 8 and a lower cylinder part 9 at their end edges. . The upper cylinder part 8 and the lower cylinder part 9 have through holes 1 through which the lifting cord 3 or the operating cord 7 is inserted.
0 and 11 are provided, respectively.

Now, in order to connect the lifting string 3 and the operating string 7 using the connector 6 configured as described above, first, the lower ends of the two lifting strings 3 hanging down from one side of the head box 5 are connected to the upper cylindrical portion 8. After inserting into the through hole 10 from above, their lower ends are tied to form a knot that prevents them from coming out of the through hole 10, and the upper cylinder part 8 is suspended from the lower end of the lifting cord 3. Next, operation string 7
After the upper end is inserted into the through hole 11 of the lower cylindrical part 9 from below, a knot is tied at the upper end and the operating string 7 is suspended from the lower cylindrical part 9. Then, by screwing the upper cylinder part 8 and the lower cylinder part 9 together, the elevating string 3 and the operating string 7 are connected as shown in FIG. However, the above-mentioned work was extremely complicated.

OBJECTIVES The purpose of this invention is to eliminate the drawbacks of the conventional operating string connecting device as described above, and to provide a connecting device that can easily connect the operating string and the lifting string.

Embodiment Hereinafter, an embodiment embodying this invention will be described with reference to FIGS. 4 to 7. Reference numeral 21 is an operating string connector made of synthetic resin, and the connector is connected to the main body member. 22 and a fitting member 23.

The side wall portion 19 of the main body member 22 has an opening 20 on one side.
A lid 25 is integrally molded on the upper end of the side wall 19, and the side wall 19 has a semi-cylindrical shape.
A bottom plate 27 is integrally molded near the lower end. A through hole 26 is provided in the center of the lid plate 25,
In addition, a through hole 26 is provided in the center of the bottom plate 25,
The right hole 28 is opened to the outside of the bottom plate 27 by a groove 29.

The fitting member 23 is formed in a semi-cylindrical shape, is rotatably attached to the main body member 22 by a thin wall portion 24, and is attached to the side wall portion 19 of the main body member 22.
It is designed to fit into the opening 20 of and close the opening 20.

Numeral 30 is an engagement recess provided at two upper and lower locations on the inner side edge of the main body member 22, and 31 is an engagement protrusion provided at two upper and lower locations on the side edge of the fitting member 23. A protrusion 31a that engages with the engagement recess 30 is provided, and when the engagement member 23 is rotated relative to the main body member 22 and the protrusion 31a is engaged with the engagement recess 30, as shown in FIGS. 6 and 7. The cylindrical operation string connector 21 is configured as shown in FIG.
32 is a stepped portion provided on the outside of the side edge of the fitting member 23, and when the side edges of both members 22 and 23 are engaged as described above, a groove 32 is formed between both members 22 and 23.
It is designed to cause a.

Now, in order to connect the lifting string 3 and the operating string 7 using such an operating string connecting tool 21, first, with the fitting member 23 open to the main body member 22, the cover plate 25 is inserted from above the main body member 22. After inserting the lower end of the lifting cord 3 into the through hole 26, tie a knot at the lower end to prevent it from coming out through the through hole 26. next,
A knot larger than the through hole 28 of the bottom plate 27 is made at the upper end of the operating string 7, and the operating string 7 is inserted through the hole 28 through the groove 29 of the bottom plate 27 and suspended from the bottom plate 27 by the knot. Then, when the fitting member 23 is rotated relative to the main body member 22 and the protrusion 31a is engaged with the engagement recess 30, the elevating string 3 and the operating string 7 are reliably connected via the connecting tool 21. Therefore, in this connecting tool 21, the lower end of the lift string 3 is inserted through the cover plate 25 of the main body member 22 to tie a knot, and the operating string 7, which has been tied in a knot at the upper end, is suspended from the bottom plate 27 of the main body member 22. After that, the lifting string 3 and the operating string 7 can be easily connected by engaging and fixing the fitting member 23 to the main body member 22 from the side.

In addition, when the side edges of the main body member 22 and the fitting member 23 are engaged, a groove 32a is formed between both side edges, so if a flathead screwdriver or the like is fitted into this groove 32a and rotated, both sides can be rotated. The members 22 and 23 can be easily disengaged.

Next, a second embodiment embodying this invention will be described with reference to FIGS. 8 to 10. In this embodiment, a main body member 33 and a fitting member 34 having substantially the same shape as those of the previous embodiment are used. The cover plate 25 and the bottom plate 27 of the main body member 33 are provided separately, and have the same shape as in the previous embodiment. Engagement recesses 35 are provided at two upper and lower locations on the outside of both side edges of the main body member 33, and protrusions 36 corresponding to the engagement recesses 35 are provided at upper and lower two locations on the inside of both side edges of the fitting member 34. Then, the protrusion 36 is engaged with the engagement recess 30, and both members 33, 3
4 are fitted and fixed, a groove 29 similar to that of the previous embodiment is formed between the side edges of both members 33 and 34.

The connector constructed in this way can be assembled by attaching the lifting cord 3 and the operating cord 7 to the main body member 33 in the same manner as in the previous embodiment, and fitting the fitting member 34 to the main body member 33 from the side. The lifting string 3 and the operating string 7 can be easily connected.

Next, a third embodiment embodying this invention will be described with reference to FIG. 11. Connector 3 of this example
The basic configuration of 7 is the connector 2 of the first embodiment.
1, so only the parts that are different from the connector 21 will be explained. The cover plate 39 of the main body member 38 is provided with a through hole 41 opened to the outside by a groove 40, and A thick part 42 is provided from the opposite side of the groove 40 to the connection part with the fitting member 43, and the thick part 42 is connected to the cover plate 3.
9 to a position above the side edge of the main body member 38. A cover plate 44 is integrally formed on the upper end of the fitting member 43, and a through hole 46 is formed in the center of the cover plate 44, and a portion extending approximately 90 degrees toward the front from the connecting portion with the main body member 38. has been removed. Then, when the fitting member 43 is rotated relative to the main body member 38 so that the side edges of both members 38 and 43 are in contact with each other, the cover plate 44 of the fitting member 43 is placed above the cover plate 39 of the main body member 38. The removed portion of the cover plate 44 is fitted into the thick portion 42 of the cover plate 39, so that both members 38 and 43 are fitted and fixed.

The lifting cord 3 is connected to the connecting tool 37 configured in this way.
To connect the operating string 7 to the operating string 7, first tie a knot at the lower end of the lifting string 3 and the upper end of the operating string 7, and insert the lifting string 3 into the through hole 41 through the groove 40 of the cover plate 39 of the main body member 38. If the knot is located inside the main body member 38 and the knot of the operating string 7 is located above the through hole 28 of the bottom plate 27 as in the previous embodiment, and the both members 38 and 43 are fitted and fixed, the elevating string 3 and the operating string 7 can be connected.

Therefore, in this connecting tool 37, a knot is made in advance at the lower end of the lifting string 3, and the main body member can be suspended from the knot, so that the lifting string 3 and the operating string 7 can be connected more easily than in the previous embodiment. be able to.

Effects As detailed above, this invention
2, 33, 38 on the side wall 19, cover plates 25, 39, 44 and bottom plate 2 provided on the upper and lower parts of the side wall 19.
7, one side of the side wall 19 is opened to form an opening 20, and fitting members 23, 34, 43 that close the opening 20 can be fitted and fixed to the opening 20. The lids 25, 39, 44 are provided with through holes 26, 41, 4 through which the lifting cord 3 is inserted.
By providing a through hole 28 in the bottom plate 27 for inserting the operating string 7, there is no need to insert the lifting string 3 or the operating string 7 into the fitting member in advance. The elevating cord 3 and the operating cord 7 can be easily connected by fitting the fitting member to the main body member from the side of the main body member through which the elevating cord 3 and the operating cord 7 are inserted.

[Brief explanation of the drawing]

Figure 1 is a front view of a blind related to this invention, Figure 2 is an exploded perspective view of a conventional connector, Figure 3 is a longitudinal sectional view showing its usage, and Figure 4 is a first embodiment of this invention. A front view of the coupling device of the embodiment,
Fig. 5 is a bottom view of the same, Fig. 6 is a perspective view showing a state in which the fitting member is fixed to the main body member, Fig. 7 is a cross-sectional view thereof, and Fig. 8 is a second embodiment of the invention. FIG. 9 is a cross-sectional view of the main body member, and FIG. 10 is a cross-sectional view of the fitting member.
FIG. 1 is a perspective view showing a third embodiment of this invention. Lifting string...3, Operation string...7, Side wall section...
19, Opening section...20, Main body member...22,3
3, 38, Fitting member... 23, 34, 43, Cover plate... 25, 39, 44, Through hole... 26, 28, 4
1,46, bottom plate...27.

Claims (1)

[Claims for Utility Model Registration] 1. The main body members 22, 33, 38 are connected to the side wall portion 19,
Cover plates 25 and 3 provided at the upper and lower parts of the same side wall portion 19
9, 44 and a bottom plate 27, the side wall portion 1
Fitting members 23, 34, 43 that open a part of 9 to form an opening 20 and close the opening 20.
The lid body 25, 39, 44 is provided with through holes 26, 41, 46 through which the lifting cord 3 is inserted, and the operating cord 7 is inserted into the bottom plate 27. Through hole 2 for insertion
8. An operating string connector for a blind, characterized in that it is provided with a number 8. 2 Through holes 26, 41, 4 in cover plates 25, 39, 44
At least one of the through holes 28 of the bottom plate 27 and the cover plate 25, 39, 4 are formed by the grooves 29, 40, 45.
4 or the side edge of the bottom plate 27. The operating string connector for a blind according to claim 1, which is a utility model. 3. The operating string connector for a blind according to claim 1, wherein the fitting members 23, 43 are rotatably supported on the side edges of the main body members 22, 38.