JP2006009331A - Cord connector of sunlight blocking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector connecting a plurality of lifting cord terminals to the terminals of the operating cords fixed to the bottom rail of a sunlight blocking device which can diversify aesthetic appearance. <P>SOLUTION: This connector comprises an outer tube member and a cord connection member fitted into the outer tube member. A vertically communicating lifting cord passing hole and an upwardly convergent tapered hole are formed in the outer tube member. The upper surface outer diameter of the cord connection member is formed smaller than the upper inner diameter of the tapered hole and the center part outer diameter thereof is formed larger than the upper part inner diameter of the tapered hole and smaller than the lower inner diameter thereof. An upper radial groove allowing the lifting cord to come therein but not allowing its knot to come therein is formed in the upper surface of the cord connection member, a lower radial groove allowing the operating cord to come therein but not allowing its knot to come therein is formed in the lower surface, and slits communicating with the upper and lower radial grooves and allowing the lifting cord and the knot of the operating cord to come therein are formed in the peripheral surface thereof. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a cord connector for connecting a plurality of lifting cord terminals drawn out from a head box of a solar shading device and an operation cord terminal fixed to a bottom rail.

  In solar shading devices such as Venetian blinds and pleated screens that spread solar shading material between the head box and the bottom rail, a plurality of relatively thin lifting cord terminals pulled out from the head box via cord stoppers, and the bottom rail It is well known to connect a terminal with a relatively thick operation cord that is fixed to the terminal via a common cord connector, as shown in Japanese Patent Laid-Open No. 2002-339670.

A conventional cord connector has a configuration in which a cap nut-like upper cylinder member having a cord passage hole in the center and a bolt-like lower cylinder member having a cord passage hole in the center are screwed together, and a plurality of lifting cords The terminal is passed through the cord passage hole of the upper cylinder member, and the terminal of the operation cord is passed through the cord passage hole of the lower cylinder member to form a knot ball. Since the cord connector suspended from the head box in front of the solar radiation shielding device is conspicuous, it is preferable to prepare connectors of various designs so that the user can select a favorite cord connector. However, the conventional cord connector is unsuitable for design diversification because of its configuration.
JP 2002-339670 A

  The present invention has been made in order to solve this problem, and the object thereof is a connector for connecting a plurality of lifting cord terminals of a solar shading device and a terminal of an operation cord to be fixed to a bottom rail. It is to provide something that can be diversified.

  In order to achieve the above object, the means employed by the present invention includes a cord connector for connecting a plurality of lifting cord terminals of a solar shading device and a terminal of an operation cord fixed to a bottom rail, an outer cylinder member, and the outer cylinder. It is composed of a cylindrical cord connecting member built in the member, and the outer cylinder member is provided with an elevating cord through hole communicating vertically and a tapered hole tapered upward, and the outer diameter of the cord connecting member is set to the tapered hole. It is smaller than the upper inner diameter and larger than the lower inner diameter. The upper surface of the cord connecting member has an upper radial groove in which an elevating cord enters but no knot is inserted, and an operation cord is inserted in the lower surface but no knot is inserted. The lower radial groove is not formed, and a slit is formed on the peripheral surface to receive knots and communicate with the upper and lower radial grooves.

  With the above configuration, the design of the cord connector of the present invention is determined by the shape, pattern, and color of the outer surface of the outer cylinder member. Since the outer surface of the outer cylinder member is not related to any of the lifting / lowering cord, the operation cord, and the cord connecting member, the shape, pattern, and color are completely free, and various designs of outer cylinder members can be prepared.

  Connection of the lifting / lowering cord and the operation cord by the cord connector of the present invention is extremely easy. First, a plurality of elevating cords are passed through the elevating cord hole and the taper hole of the outer cylinder member, and then the elevating cord is put into the upper radial groove of the cord connecting member, and the knot is put into the slit, and the operation cord Is inserted into the lower radial groove of the cord connecting member, and the knot is inserted into the slit. Finally, when the lifting / lowering cord is pulled and the outer cylinder member is externally fitted to the cord connecting member, the lifting / lowering cord and the operation cord are integrally coupled to the outer cylinder member via the cord connecting member. At this time, the outer peripheral surface of the cord connecting member fits perfectly into the tapered hole of the outer cylinder member and frictionally engages with the inner peripheral surface.

  Separation of the lifting / lowering cord and the operation cord is also easy. First, the operation cord is pulled, and the cord connecting member is pulled out from the tapered hole of the outer cylinder member. Next, when the knotting ball of the lifting / lowering cord and the operation cord is pulled out from the slit, the lifting / lowering cord and the operation cord come out from the upper and lower radial grooves and are separated.

  The outer cylinder member of the cord connector of the present invention is preferably made of wood or resin in order to easily produce various designs. The tapered hole may be a uniform cone inner peripheral surface, but may also have a plurality of ribs along the generatrix of the cone inner peripheral surface.

  The cord connecting member is made of sheet metal, and when tension is not applied in the axial direction, the outer diameter of the central portion of the peripheral surface is a drum-shaped cylindrical shape that is larger than the upper diameter of the outer cylindrical member tapered surface and smaller than the lower diameter, When a predetermined tension or more acts in the axial direction, the outer cylinder member can be easily attached to and detached from the tapered hole by forming a drum-shaped cylinder with a concave outer diameter at the center of the peripheral surface. The upper and lower radial grooves of the cord connecting member are formed to have the same shape and the same size and overlap in the axial direction, and the slit is narrow at the upper and lower portions and communicates with the upper and lower radial grooves, and the central portion is It is preferable that the width is a half circumference.

  The present invention will be described based on embodiments shown in the drawings. FIG. 1 is a perspective view of a main part of a pleated screen having a cord connector according to an embodiment of the present invention, FIG. 2 is a longitudinal sectional view of the cord connector of FIG. 1, and FIGS. 3 and 4 are side views and planes of a cord connecting member. FIGS. 5A and 5B are diagrams showing the steps of connecting and separating the lifting and lowering cords and the operation cords, and FIGS. 6A and 6B are diagrams corresponding to FIGS.

  As shown in FIG. 1, the two lifting cords 2 that lift and lower the bottom rail 6 of the pleat screen 1 come out from the lifting cord outlet 4 of the head box 3 at one end. A terminal at one end of the lifting / lowering cord 2 is inserted into the cord connector 5 from above, and a terminal at the upper end of the operation cord 7 fixed to the bottom rail 6 is inserted into the cord connector 5 from below. Since the cord connector 5 that hangs down from the head box 3 is located in front of the pleat screen 1, it has a considerable influence on the appearance of the pleat screen 1.

  As shown in FIG. 2, the cord connector 5 includes a wooden outer cylinder member 8 and a sheet metal cord connecting member 10 housed in the outer cylinder member 8. Since the outer cylinder member 8 is made of wood, various designs can be easily manufactured. The outer cylinder member 8 is provided with a lifting / lowering cord passage hole 11 and a taper hole 12 communicating vertically. The lifting / lowering cord 2 passes through the lifting / lowering cord passage hole 11 and enters the cord connecting member 10 from above through the tapered hole 12 to form a knot ball 13. The operation cord 7 enters the cord connecting member 10 from below in the tapered hole 12 to form a knot ball 14. The tapered hole 12 is a tapered hole that tapers upward, and the upper inner diameter is larger than the inner diameter of the lifting / lowering cord passage hole 11.

  The cord connecting member 10 is a drum-shaped cylindrical shape, and the outer diameters at both upper and lower ends are slightly smaller than the upper inner diameter of the tapered hole 12, and the outer diameter of the central part is larger than the upper inner diameter of the tapered hole 12 and smaller than the lower inner diameter. . When the cord connecting member 10 is housed in the outer cylinder member 8, the upper surface contacts the ceiling of the tapered hole 12, and the outer peripheral surface frictionally engages with the inner peripheral surface of the tapered hole 12. On the peripheral surface of the cord connecting member 10, a slit 15 having a narrow upper part and a lower part and a wide center part with a half circumference is formed. The knotting balls 13 and 14 of the lifting / lowering cord 2 and the operation cord 7 are put in and out through the wide central portion of the slit 15.

  As shown in FIGS. 3 and 4, upper and lower radial grooves 16, 17 having a maximum inner diameter smaller than the outer diameter of the knot ball are formed on the upper and lower surfaces of the cord connecting member 10. The upper and lower radial grooves 16 and 17 are connected to the slit 15 and are superposed with the same shape and size when viewed in the axial direction. When the knotting ball of the lifting / lowering cord and the operation cord is moved in / out of the central portion of the slit, the lifting / lowering cord and the operation cord also naturally move in / out of the radial grooves 16 and 17.

  As shown in FIG. 5A, a plurality of lifting / lowering cords 2 are passed through the lifting / lowering cord passage holes 11 and the tapered holes 12 of the outer cylinder member 8 in advance. The knotting balls 13 and 14 of the lifting / lowering cord 2 and the operation cord 7 are inserted into the slit 15 of the drum-shaped cylindrical cord connecting member 10, and the lifting / lowering cord 2 and the operation cord 7 are connected via the cord connecting member 10. Next, when the lifting / lowering cord 2 is pulled in the direction of arrow A to externally fit the outer cylinder member 8 to the cord connecting member 10 and the upper surface of the cord connecting member 10 is brought into contact with the ceiling of the tapered hole 12, as shown in FIG. The outer peripheral surface of the cord connecting member 10 and the inner peripheral surface of the tapered hole 12 are frictionally engaged, and the outer cylinder member 8 and the cord connecting member 10 are integrally coupled. Thus, the work of connecting the lifting / lowering cord 2 and the operation cord 7 via the cord connector 5 is extremely easy.

  As shown by an arrow B in FIG. 5B, when the lifting cord 2 and the operation cord 7 connected via the cord connector 5 are tensioned and a tension of a predetermined value or more is applied to the cord connecting member 10, the cord connecting member 10 The outer peripheral surface of the shaft is deformed into a drum-shaped cylindrical shape, and the frictional engagement with the inner peripheral surface of the tapered hole 12 is eliminated. Therefore, when the lifting / lowering cord 2 is loosened, the cord connecting member 10 is pulled out from the outer cylinder member 8 by the operation cord 7, and the state shown in FIG. The lifting / lowering cord 2 and the operation cord 7 can be detached from the cord connecting member 10. In this way, the operation of releasing the connection between the lifting / lowering cord 2 and the operation cord 7 via the cord connector 5 is also easy.

  A cord connector 5a according to another embodiment shown in FIG. 6 includes a resin outer cylinder member 8a. Since the outer cylinder member 8a is made of resin, it can be easily manufactured with various designs. The outer cylinder member 8a is provided with a lifting / lowering cord passage hole 11a and a taper hole 12a communicating with each other vertically. A plurality of ribs 9 extending along the generatrix are provided on the inner peripheral surface of the tapered hole 12a.

  The cord connecting member 10 is exactly the same as that of the above embodiment. The outer diameter of the upper and lower ends of the cord connecting member 10 is slightly smaller than the upper inner diameter including the rib 9 of the tapered hole 12a, and the maximum outer diameter at the center is larger than the upper inner diameter including the rib 9 of the tapered hole 12a and smaller than the lower inner diameter. . When the cord connecting member 10 is housed in the outer cylinder member 8a, the upper surface comes into contact with the ceiling of the tapered hole 12a and frictionally engages with the inner peripheral surface including the rib 9 of the tapered hole 12a. Configurations and effects other than those described above are the same as those in the previous embodiment.

The principal part perspective view of a pleats screen provided with the cord connector of the example of the present invention, 1 is a longitudinal sectional view of the cord connector of FIG. Side view of cord connecting member, A plan view of the cord connecting member, The figure which shows the process of connection and isolation | separation of a raising / lowering cord and an operation cord, The figure corresponding to FIG. 2 of another Example,

Explanation of symbols

1: Pleated screen 2: Lifting cord 3: Head box 4: Lifting cord outlet 5: Cord connector 6: Bottom rail 7: Operation cord 8, 8a: Outer cylinder member 9: Rib 10: Cord connecting member 11: Lifting cord through hole 12: Taper hole 13, 14: Knotted ball 15: Slit 16, 17: Radial groove

Claims (6)

  A cord connector for connecting a plurality of elevating cord terminals of a solar shading device and a terminal of an operation cord fixed to a bottom rail, comprising an outer cylinder member and a cylindrical cord connecting member housed in the outer cylinder member The outer cylinder member includes a lifting / lowering cord passage hole that communicates vertically and a tapered hole that tapers upward, and the cord connecting member is formed with an outer diameter smaller than an upper inner diameter of the tapered hole and larger than a lower inner diameter. The upper surface of the cord connecting member has an upper radial groove in which the elevating cord enters but no knot is inserted, and a lower radial groove in which the operation cord is inserted but no knot is inserted on the lower surface. A cord connector for a solar radiation shielding device, wherein the surface is formed with slits that contain the knot balls and communicate with the upper and lower radial grooves.   The cord connecting member has a drum-shaped cylindrical shape, and the outer diameter of the upper surface is smaller than the upper inner diameter of the tapered hole, and the outer diameter of the central part is larger than the upper inner diameter of the tapered hole and smaller than the lower inner diameter. The cord connector of the solar shading device according to claim 1 which is characterized.   The cord connector of the solar radiation shielding device according to claim 1 or 2, wherein ribs extending along a plurality of bus bars are integrally formed in the tapered hole.   The cord connector of the solar radiation shielding device according to any one of claims 1 to 3, wherein the slit has a narrow upper part and a lower part and a wide central part.   5. The cord connecting member according to claim 1, wherein when a predetermined tension or more is applied by the elevating cord and the operation cord, the cord connecting member is deformed into a drum shape and the outer diameter of the central portion is reduced. Cord connector for solar shading devices. The cord connector of the solar radiation shielding device according to any one of claims 1 to 5, wherein the outer cylinder member is made of wood or resin.

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