Folding bamboo blind

Abstract

We provide a folding blind with a novel structure that can be folded smoothly with moderate force. [Solution] The blind comprises a main body 2 consisting of foldable members 20-1 to 20-6 that are foldably connected, a guide unit 3 arranged along the extension and retraction direction of the main body 2, and first to third sliders 4, 5, 6-1, and 6-2 that move guided by the guide unit 3. Foldable member 20-1 is rotatably attached to the second slider 5, and foldable members 20-3 and 20-5 are rotatably attached to the third sliders 6-1 and 6-2, respectively. When the first slider 4 approaches the second slider 5 beyond a predetermined distance, it engages with it and moves together. The first slider 4 also rotates the foldable member 20-1 when it approaches beyond a predetermined distance. The second and third sliders 5 and 6-1 rotate the foldable members 20-3 and 20-5 when they approach beyond a predetermined distance.

Claims

1. The main body of the blind consists of multiple folding members connected in an accordion-like folding manner, A first guide groove and a second guide groove are arranged in parallel on the side surface of the blind body in the direction in which the blind body is folded, A first slider that moves guided by the first guide groove, A second slider is provided corresponding to the first folding member located from the upstream side in the direction of folding the blind body, and moves guided by the second guide groove, The blind body is provided with a third slider that is provided in correspondence to each of the odd-numbered folding members located from the third onward from the upstream side in the folding direction, and which moves guided by the second guide groove, The folding members located in odd-numbered positions from the upstream side in the direction of folding the aforementioned bamboo blind body are: The aforementioned blind body has a claw portion provided at the upstream end in the direction in which it is folded, The first folding member located from the upstream side in the direction of folding the aforementioned bamboo blind body is, The second slider is rotatably mounted, The folding members located in the third and subsequent odd-numbered positions from the upstream side in the direction of folding the aforementioned bamboo blind body are: It is rotatably attached to a third slider corresponding to itself, The first slider described above is An engaging portion that, when it approaches the second slider beyond a predetermined distance, engages with the second slider and moves the second slider together with itself, The first contact portion, when disengaged from the second slider, comes into contact with the claw portion of the folding member corresponding to the second slider when it approaches the folding member beyond a predetermined distance, thereby rotating the folding member around the mounting axis with respect to the second slider. The aforementioned second slider is, In the direction of folding the aforementioned blind body, when the folding member corresponding to the third slider is approached beyond a predetermined distance while not in contact with the third slider located downstream of the blind body, it has a second contact portion that contacts the claw portion of the folding member, causing the folding member to rotate around the mounting axis with the third slider. The third slider described above is In the direction of folding the aforementioned blind body, when the blind body is not in contact with the third slider located downstream of it, and approaches the folding member corresponding to the third slider located downstream of it beyond a predetermined distance, it has a third contact portion that comes into contact with the claw portion of the folding member, causing the folding member to rotate around the mounting axis with the third slider located downstream of it. A folding blind characterized by the following features.

2. A folding blind according to claim 1, The second slider further comprises a first rotational restraining means for restraining the rotation of the folding member that rotates around its mounting axis, The third slider further comprises a second rotational restraining means for restraining the rotation of the folding member that rotates around its mounting axis. A folding blind characterized by the following features.

3. A folding blind according to claim 2, The first rotational restraining means is the second contact portion, and the rotation of the folding member is restrained when the claw portion of the folding member, which has rotated around its mounting axis, comes into contact with the second contact portion. The second rotational restraining means is the third contact portion, and the rotation of the folding member is restrained when the claw portion of the folding member, which has rotated around its mounting axis, comes into contact with the third contact portion. A folding blind characterized by the following features.

4. A folding blind according to claim 1, The device further includes a biasing means for biasing the first slider and the second slider in a direction that maintains the disengaged state of the first slider and the second slider. A folding blind characterized by the following features.

5. A folding blind according to claim 1, The device further includes a biasing means for biasing the first slider and the second slider in a direction that brings them closer together. A folding blind characterized by the following features.

6. A folding blind according to any one of claims 1 to 5, The second slider further has a projection, The aforementioned engaging portion is The aforementioned projection is inserted into an elongated hole whose major axis is in the direction in which the blind body is folded, When the first slider approaches the second slider beyond a predetermined distance, the projection contacts one end of the elongated hole in the direction of its major axis, causing the second slider to move together with the first slider. A folding blind characterized by the following features.

7. A folding blind according to any one of claims 1 to 5, The second slider further has an elongated hole whose major axis is in the direction in which the blind body is folded. The aforementioned engaging portion is The projection is inserted into the aforementioned elongated hole, When the first slider approaches the second slider beyond a predetermined distance, the projection contacts one end of the elongated hole in the direction of its major axis, causing the second slider to move together with the first slider. A folding blind characterized by the following features.

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