JP5969215B2 - Vertical blind - Google Patents

Description

  The present invention relates to a vertical blind.

  As a conventional vertical blind, a louver is suspended from each of a plurality of carriers arranged so as to be movable in the head rail, and each carrier is provided with a rotation transmission mechanism for transmitting rotation around the vertical axis to the louver. Shields the opening where the vertical blind is installed in a state of being rotated so as to be substantially parallel to the head rail (also referred to as a fully closed state) so that all louvers are substantially perpendicular to the head rail. It is generally known that the opening is unshielded in a rotated state (also referred to as a fully opened state).

  In such a general vertical blind, since the room becomes fully visible from the outside in the fully opened state, the one proposed in Patent Document 1 as an improvement of this is also known. In this patent document 1, a louver is suspended from each of a plurality of carriers arranged so as to be movable in the head rail, and only every other carrier (referred to as a first carrier) has a louver around a vertical axis. A rotation transmission mechanism for transmitting rotation is provided, and the louvers suspended by the first carrier are fully open, and the louvers suspended by a carrier not provided with the rotation transmission mechanism (referred to as a second carrier) A state in which the gap between the louvers suspended by one carrier is almost closed is maintained to prevent the louvers from becoming completely visible. In addition, when the louver suspended from the first carrier is fully closed, the louver suspended from the second carrier is also fully closed together and is adjacent to the head rail when viewed from the direction perpendicular to the head rail. The opening where the vertical blind is installed is shielded so that there is no gap formed between the louvers suspended from the matching first carrier.

Japanese Patent Laid-Open No. 10-54186

  As described above, in any vertical blind, when the louver is fully closed, the opening in which the vertical blind is installed is shielded to prevent light from entering the room. . However, even when the louver is in a fully closed state, there is a front and rear gap between the end louver and the window frame forming the opening, and thus there is a problem that light leaks from the side of the vertical blind. . This gap is inevitable as the distance between the center axis of the carrier and the window frame even if the head rail is constructed in contact with the window frame.

  The present invention has been made in view of such a problem, and an object thereof is to provide a vertical blind capable of preventing the occurrence of light leakage from both end portions of the vertical blind and enhancing the heat insulating performance of the opening. To do.

To achieve the aforementioned object, the present invention provides a vertical blind having a plurality of louvers suspended along a head rail below the head rail.
At least one of the end louvers arranged at both end portions of the head rail has the head rail when the other louver is rotated so that the other louvers are substantially parallel to the head rail. It is characterized in that it is held at an angle perpendicular to.

Furthermore, at least one of the end louvers is always held at an angle perpendicular to the head rail.

Furthermore, in a state where the louvers are extended, the distance between at least one of the end louvers and the adjacent louver is made smaller than the distance between other adjacent louvers. To do.

Further, the width dimension of at least one of the end louvers is set larger than the width dimension of the other louvers.

Further, the center position in the width direction of at least one of the end louvers is offset from the axial center line of the head rail to the back side.

  According to the present invention, when the louver rotates so as to be substantially parallel to the head rail and is in the fully closed state, the end louver positioned at the side end of the head rail is perpendicular to the head rail. Since the light is held at a proper angle, it is possible to prevent light leakage from the side of the vertical blind.

  By making the distance between the end louver and the adjacent louver smaller than the distance between other louvers, the end louver is in a fully closed state with the end louver held in a vertical state. The gap between adjacent louvers can be closed.

  By making the width dimension of the end louver larger than the width dimension of other louvers, or by offsetting the center position in the width direction of the end louver away from the axial center line of the head rail, Since the window frame can be approached as much as possible, light leakage from the side of the vertical blind is more reliably prevented, and the gap between the window frame and the like is reduced, thereby improving the heat insulation performance of the opening. Can do.

The fully closed state of the louver of the vertical blind in the 1st Embodiment of this invention is represented, (a) is a top view of only a louver, (b) is a whole front view. The full open state of the louver of the vertical blind in the 1st Embodiment of this invention is represented, (a) is a top view of only a louver, (b) is a whole front view. It is a top view near the control unit side edge part of the vertical blind of 1st Embodiment. FIG. 3 is a front view of the vicinity of an end portion on the control unit side in the fully closed state of the louver of the vertical blind according to the first embodiment, and is a view in which the front side of the head rail is omitted. It is a front view of the end cover side end vicinity in the fully closed state of the louver of the vertical blind of 1st Embodiment, and is the figure which abbreviate | omitted the front side of the head rail. FIG. 3 is a front view of the vicinity of an end portion on the control unit side in a fully open state of the louver of the vertical blind according to the first embodiment, and is a view in which the front side of the head rail is omitted. The full-closed state of the louver of the vertical blind according to the first embodiment is represented, (a) is a side view of the adjacent louvers and end louvers, and (b) is a side view of only the end louvers. FIG. It is a front view of the vicinity of the control unit side end portion in the fully closed state of the louver of the vertical blind according to the second embodiment, and is a view in which the front side of the head rail is omitted. It is a front view of the end cover side end part vicinity in the fully closed state of the louver of the vertical blind of 2nd Embodiment, and is the figure which abbreviate | omitted the front side of the head rail. It is a front view of the vicinity of the control unit side end portion in the fully open state of the louver of the vertical blind according to the second embodiment, and is a view in which the front side of the head rail is omitted. The louver of the vertical blind of 3rd Embodiment is represented, (a) is the side view which looked at the adjacent louver and the edge part louver in the fully closed state of a louver, (b) is in the fully open state of a louver. It is the side view which looked at the adjacent louver and the edge part louver.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
1 to 7 show a first embodiment. This vertical blind has a head rail 10 fixed to a window frame 11 or the like by a bracket 9, and a plurality of carriers 12 are arranged so that the head rail 10 can slide in the longitudinal direction. The louver 14 is suspended through the hook 13.

  As shown in FIG. 5, the leading carrier among the plurality of carriers 12 is a master carrier 12a. The adjacent carriers 12 are connected with the master carrier 12a at the head so that they can be separated or approached with a predetermined interval determined by the spacer 15 as a maximum interval. The spacer 15a that connects the master carrier 12a and the carrier 12 adjacent thereto, and the spacer 15a that connects the end carrier 12b adjacent to the control unit 10a described later and the carrier 12 adjacent thereto are more than the other spacers 15. The length dimension is also short. As a result, in the extended state where the louver 14 is disposed across the head rail 10, as shown in FIGS. 4 and 5, the ends that are suspended from the master carrier 12a and the end carrier 12b and disposed at both side ends. The distance P2 between the partial louvers 14a and the adjacent louvers 14 is smaller than the distance P1 between the other adjacent louvers 14, and the distance P2 is 1 of the width dimension of the louvers 14. It is set to a size of about a size obtained by adding 1/2 of the width of the carrier 12 to the size of / 2.

  A carrier moving mechanism that moves the carrier 12 and a louver rotating mechanism that rotates the louver 14 are disposed in the head rail 10.

  The carrier moving mechanism has an operation code 18. One end of the operation cord 18 is connected to the master carrier 12a, and the other end is guided through the head rail 10 to the control unit 10a at one end of the head rail 10 and suspended from the control unit 10a. After being introduced again into the head rail 10 and further guided to the end cover 10b at the other end of the head rail 10, it is turned around by the end cover 10b and guided into the head rail 10 to be the master carrier. 12a.

  When one of the double portions of the operation cord 18 derived from the control unit 10a is pulled, the master carrier 12a is pulled by the operation cord 18 and moves to one of the head rails 10 to double the operation cord 18. When the other part is pulled, the master carrier 12 a is pulled by the operation cord 18 and moves in the head rail 10 to one of the other. When the succeeding carrier 12 is successively pulled through the spacer 15 in accordance with the movement of the master carrier 12a by the movement of the master carrier 12a, the louvers 14 and 14a can be brought into the extended state. On the other hand, when the master carrier 12a pushes out the carrier 12 due to the movement of the master carrier 12a, the louvers 14 and 14a can be brought into a folded state. By operating the operation cord 18 in this way, the louvers 14 and 14a can be expanded or folded.

  The louver rotating mechanism is connected to the rotating shaft 24 through a rotating shaft 24 that is supported in a longitudinally extending manner in the head rail 10 and a gear (not shown) disposed in the control unit 10a. The operation rod 26 is suspended from one end of the head rail 10. Each carrier 12 is provided with a rotation transmission mechanism that meshes with the rotation shaft 24, and the rotation transmission mechanism can transmit the rotation of the rotation shaft 24 to the hook 13 of the carrier 12 to rotate the louver 14. However, in this example, the end carrier 12b adjacent to the master carrier 12a and the control unit 10a is not provided with a rotation transmission mechanism, and the rotation of the rotary shaft 24 is not transmitted. The hook 13 is configured such that the end louver 14a always maintains an angle perpendicular to the head rail 10.

  As a configuration for maintaining the vertical angle, the hook 13 and the end louver 14a may be urged in a direction to maintain a vertical angle with respect to the head rail 10 by using an urging means such as a spring. Alternatively, the hook 13 and the end louver 14a may be made completely non-rotatable to lock the rotation with respect to the master carrier 12a and the end carrier 12b.

  As shown in FIGS. 1, 4, and 5, the vertical blind configured as described above corresponds to the rotating shaft 24 when the operating rod 26 is rotated in the direction in which the louver 14 is closed when the louver 14 is extended. It rotates in the reverse direction, and the hook 13 rotates in the direction to close the louver 14 via the rotation transmission mechanism. The louvers 14 other than the both end louvers 14a rotate until they are substantially parallel to the head rail 10 and are fully closed, but the rotation of the rotary shaft 24 is not transmitted to the master carrier 12a and the end carrier 12b. Even during the rotation operation of the operation rod 26, only the both end louvers 14a are held at an angle perpendicular to the head rail 10.

  Accordingly, the louver 14 other than the both-end louvers 14a shields the opening where the vertical blind is installed to prevent light from entering from the opening, and the end of the both-end louver 14a is connected to the window frame or the wall surface. 11 and the gap between the two is reduced, preventing light leakage from the side of the vertical blind and improving the heat insulating performance of the opening.

  Further, as shown in FIG. 7A, the louver 14 is located at the center in the width direction of the end louver 14a, and the end louver 14a is disposed in the vicinity of the louver 14 adjacent thereto. Thereby, the clearance gap between the edge part louver 14a and the louver 14 adjacent to this is block | closed, and the light leakage from the side of a vertical blind can be prevented more reliably.

  When the operating rod 26 is rotated in the direction to open the louver 14, the rotary shaft 24 rotates, and the hook 13 rotates in the direction to open the louver 14 via the rotation transmission mechanism. Thereby, as shown in FIGS. 2, 3, 6 and 7B, when the louver 14 is rotated until it is perpendicular to the head rail 10, it can be fully opened. On the other hand, since the rotation of the rotary shaft 24 is not transmitted to the master carrier 12a and the end carrier 12b, both end louvers 14a are held at an angle perpendicular to the head rail 10 even during the rotation operation of the operation rod 26.

  In the above embodiment, the both end carriers 14a are held so as to always form an angle perpendicular to the head rail 10. However, the present invention is not limited to this. However, it may be configured to rotate at an angle different from that of the other carrier 14 or at a different speed. Thereby, when the other carrier 14 is in the fully closed state, the both end carriers 14 a can be held so as to form an angle perpendicular to the head rail 10.

  Further, in the above embodiment, except for the both end carrier 14a, it is rotated in one motion according to the rotation operation of the operation rod 26, but this is not restrictive, as described in JP-A-10-54186. Alternatively, every other louver 14 may be rotated according to the rotation operation of the operation rod 26.

(Second Embodiment)
Next, a second embodiment will be described with reference to FIGS. In the second embodiment, the following configuration is different from that of the first embodiment, and other configurations are the same as those of the first embodiment. Therefore, the description of the same configuration is omitted and the first configuration is omitted. The same reference numerals are assigned to members common to the embodiment.

  In the second embodiment, the end louvers 14a are not provided on the master carrier 12a and the end carrier 12b, but are hung on the hooks 13 provided on the side end portions of the lower surface of the control unit 10a and the end cover 10b. The end louver 14a is always held at an angle perpendicular to the head rail 10. The master carrier 12a and the end carrier 12b are also provided with a rotation transmission mechanism, and the rotation of the rotation shaft 24 is transmitted to the hooks 13, respectively. In a stretched state, the distance P3 between the rotation axis of the hook 13 of the master carrier 12a and the adjacent end louver 14a and the rotation axis of the hook 13 of the end carrier 12b and the corresponding end louver 14a. The distance P3 is smaller than the distance P1 between the other adjacent louvers 14, and the distance P3 is set to be slightly larger than ½ of the distance P1.

  As shown in FIGS. 8 and 9, when the louver 14 is in the fully closed state, the side ends of the louver 14 suspended from the end carrier 12b and the louver 14 suspended from the master carrier 12a are respectively connected to the control unit 10a. And it has projected to the lower part of the end cover 10b, and is in a state of being close to the end louver 14a.

  As a result, the end portion of the end louver 14a is disposed up to a position close to the window frame or the wall surface 11, and the gap between the end louver 14a and the adjacent louver 14 is closed. Light leakage from the side of the mold blind can be prevented and the heat insulating performance of the opening can be enhanced. Further, since the louver 14 is disposed over the entire length of the head rail 10 in the length direction, the window can be covered with the length of the head rail 10. For this reason, since it is not necessary to arrange the head rail 10 so as to protrude sideways beyond the window frame 11, it is possible to use the head rail 10 having the same length as the width of the window frame 11. Therefore, the vertical blind can be reduced in size.

  Further, when the operation rod 26 is rotated in the direction to open the louver 14, the rotary shaft 24 rotates, and the hook 13 rotates in the direction to open the louver 14 via the rotation transmission mechanism. Accordingly, as shown in FIG. 10, when the louver 14 is rotated until it is perpendicular to the head rail 10, the fully opened state can be obtained.

(Third embodiment)
As shown in FIG. 11, the third embodiment corresponds to a case where the distance between the mounting position of the head rail 10 and the window frame or the wall surface 11 is large. As shown in FIG. 11A, the center position in the width direction of both end louvers 14a is offset from the hook 13 toward the window frame (wall surface) 11 as shown in FIG. Thereby, when the louver 14 is in the fully closed state, as shown in FIG. 11A, the louver 14 is positioned substantially parallel to the head rail 10 on the axial center line of the head rail 10, whereas The back side of the end louver 14a protrudes toward the window frame (wall surface) 11 and is brought close to the window frame 11 as much as possible. For this reason, the light leakage from the gap between the end louver 14a and the window frame (wall surface) 11 can be more reliably prevented and the heat insulating performance of the opening can be enhanced.

  Further, as shown in FIG. 11B, when the louver 14 is in a fully open state, the both end louvers 14a are flush with the other louvers 14 on the front side and the window frame 11 on the back side with respect to the other louvers 14. It is arranged so as to protrude to the side, and there is no sense of incongruity in appearance.

  Since other configurations are the same as those of the first and second embodiments, description thereof will be omitted.

  In each of the embodiments described above, the both end louvers 14a are held at an angle perpendicular to the head rail 10. However, only one of the end louvers 14a may be used. For example, when there is another wall surface orthogonal to the window frame on one side, and the gap between the end louver 14a and the window frame (wall surface) 11 is shielded by the other wall surface, Only one end louver 14 a may be held at an angle perpendicular to the head rail 10.

10 Head rail 14 Louver 14a End louver P1, P2, P3 Distance between louvers

Claims (4)

In a vertical blind having a plurality of louvers (14, 14a) suspended along the head rail below the head rail (10),
At least one of the end louvers (14a) arranged at both end portions of the head rail is in a state of rotating so that the other louvers (14) are substantially parallel to the head rail. When the louver is extended, the distance (P2, P3) between at least one of the end louvers and the adjacent louver is such that the louver is held at an angle perpendicular to the head rail . A vertical blind characterized in that it is smaller than the distance (P1) between other adjacent louvers .   2. The vertical blind according to claim 1, wherein at least one of the end louvers is always held at an angle perpendicular to the head rail. The vertical blind according to claim 1 or 2 , wherein a width dimension of at least one of the end louvers is set larger than a width dimension of other louvers. The vertical blind according to any one of claims 1 to 3 , wherein a center position of at least one of the end louvers in the width direction is offset from the axial center line of the head rail to the back side. .

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