Screen device

Abstract

The present application provides a screen device, which can inhibit the damage of the Z-axis end of the screen inserted into the first guide part, and can form the first guide part by using only one first guide unit without being limited to the type of the screen. A guide rail part (63g) is provided on the part of the opposite direction inner side of the two side walls of each first guide unit forming the first guide part (6), which extends along the imaginary line (VL) including the connection of the pivot center of each first guide unit in the connection direction of the first guide unit, and a support piece protruding toward the opposite direction inner side is provided on the end edge part of the two side walls away from the bottom wall and toward the Z-axis side. A screen anti-falling part (9) having a plurality of needle-shaped parts (92) installed in a spaced manner on the base part (91) which is flexible in the pivot direction of each first guide unit and has an elongated shape is assembled on the opposite direction inner side of the two side walls of each first guide unit.

Description

TECHNICAL FIELD

[0001] The present application relates to a screen device suitable for a light-shielding and light-adjusting mechanism of a window shade, a venetian blind, or the like, or a screen of a screen window, a partition, or the like. BACKGROUND

[0002] Conventionally, such a screen device generally has: a screen which is freely expandable and storable; a pair of frames which are disposed in opposition to each other in the X-axis direction among three axes orthogonal to the expansion and storage direction of the screen, and which are freely slidable in the X-axis direction along at least one of the pair of frames, and which are composed of a first frame fixed to one end of the screen in the X-axis direction and having a hollow shape longer in the Z-axis direction, and a second frame fixed to the other end of the screen in the X-axis direction; a first guide portion and a second guide portion which are pulled out from the inside of the freely slidable frame toward the other side in the X-axis direction when the freely slidable frame is slid toward one side in the X-axis direction, and which are stored in the inside of the freely slidable frame when the freely slidable frame is slid to the other side in the X-axis direction, and which each have a free end at one end, and the portions pulled out from the inside of the freely slidable frame each extend linearly in the X-axis direction between the one end portion and the other end portion in the Z-axis direction of the pair of frames; and a tension member which is provided in the inside of the freely slidable frame and which links the free ends of the first guide portion and the second guide portion.

[0003] Further, in European Patent No. 2333229, a screen device is described in which the first guide portion is formed by linking a plurality of first guide units, each of which has a pair of side walls disposed in opposition to each other in the Y-axis direction when the first guide portion is pulled out from the inside of the freely slidable frame, and a bottom wall linking the side walls, and in which, in the first guide portion, one of the first guide units of two adjacent first guide units is pivotally supported to the other first guide unit, and by this pivotal support, the first guide portion maintains linearity in the X-axis direction and is bent toward the other side in the Z-axis direction, and the one end portion of the expanded screen is inserted between the side walls of each of the first guide units of the portion of the first guide portion pulled out from the inside of the freely slidable frame.

[0004] In the above-described screen device, at the X-axis end portion of the portion of the side walls of each of the first guide units corresponding to the one end portion of the first guide portion pulled out from the freely slidable frame in the Z-axis direction, a pair of pins are provided which face inward in the direction of opposition of the side walls, and a pair of openings are provided which open at the other X-axis end portion, and the two first guide units are linked by fitting each pin of one of the first guide units into each opening of the other first guide unit with play, and the two pins form a pivot.

[0005] In addition, in the above screen device, a rigid protrusion is protrusively provided at a portion of each of the two side walls of each first guide unit at which the above pin is provided and at an inner side in the opposite direction of the two side walls. In the first guide portion, the rigid protrusion extends along an imaginary line connecting the pivot centers of each first guide unit in the connecting direction of the first guide unit. Moreover, when the first guide portion is pulled out to the other side in the X-axis direction as the frame slides to one side in the X-axis direction, the above rigid protrusion is inserted into the Z-axis end portion of the screen inserted between the two side walls of each first guide unit of the pulled-out portion of the first guide portion, thereby holding the above rigid protrusion so that the deployed screen does not fall off the pulled-out portion of the first guide portion even if the screen is subjected to an external force such as wind pressure.

[0006] However, although it is a rigid protrusion, each first guide unit is generally a resin one-piece product, and the insertion and extraction of the rigid protrusion with respect to the Z-axis end portion of the screen are repeatedly performed as the screen is deployed and stored. Thus, the following problems can occur, i.e., the rigid protrusion can be bent and deformed or damaged. In addition, the type of screen generally varies depending on the purpose or installation site of the screen device. Therefore, in the case where the strength of the molding material of each first guide unit is higher than that of the screen, the Z-axis end portion of the screen can be damaged when the above rigid protrusion is inserted. In order to prevent the damage to the screen, in the screen device described in Patent Document 1, a plurality of first guide units made of materials corresponding to the types of screens need to be used. As a result, the first guide portion also has a plurality of types. SUMMARY

[0007] The present application has been made in view of the above problems, and an object thereof is to provide a screen device in which damage to the Z-axis end portion of the screen inserted into the first guide portion can be suppressed even if the screen is repeatedly deployed and stored, and in which the first guide portion can be formed using only one type of first guide unit regardless of the type of screen.

[0008] To solve the above problems, the screen device of the present application is provided with: a screen which can be freely expanded and stored; a pair of frames, in which the expansion and storage direction of the screen is the X-axis among three axes which are orthogonal to each other, at least one side of the pair of frames is arranged in opposition in the X-axis direction in a manner that it can slide freely along the X-axis, and the pair of frames is composed of a first frame which is fixed to one end of the screen in the X-axis direction and is hollow and long in the Z-axis direction, and a second frame which is fixed to the other end of the screen in the X-axis direction and is hollow and long in the Z-axis direction; a first guide part and a second guide part, which are pulled out from the inside of the freely-sliding frame towards the other side of the X-axis when the freely-sliding frame slides towards one side of the X-axis, and are stored in the inside of the freely-sliding frame when the freely-sliding frame slides to the other side of the X-axis, and which each have a free end at one end, and the part pulled out from the inside of the freely-sliding frame extends linearly along the X-axis between the one end and the other end of the pair of frames in the Z-axis direction.and a tension member provided inside the frame which freely slides and links the free ends of the first guide portion and the second guide portion, the first guide portion being formed by linking a plurality of first guide units, each of the first guide units having a pair of side walls disposed in opposition in the Y-axis direction when the first guide portion is pulled out from inside the frame which freely slides, and a bottom wall linking the pair of side walls, in the first guide portion, one of the first guide units of two adjacent first guide units is pivotally supported to the other first guide unit, by the pivotal support, the first guide portion maintains straightness in the X-axis direction and bends to the other side in the Z-axis direction, the Z-axis direction end portion of the screen which is spread is inserted between the pair of side walls of each of the first guide units of the portion pulled out from inside the frame which freely slides of the first guide portion, characterized in that, at the X-axis direction end portion of the portion of the pair of side walls of each of the first guide units corresponding to the Z-axis direction end portion of the first guide portion pulled out from the frame which freely slides, a pair of pins are provided toward the outside of the pair of side walls in the opposite direction, and a pair of openings are provided at the X-axis direction other end portion, the two first guide units are linked by fitting each pin of one of the first guide units into each opening of the other first guide unit in a manner having play, the two pins form a pivot, a guide portion is provided at the portion inside in the opposite direction on the pair of side walls of each of the first guide units, the guide portion extends along an imaginary line including the pivot center of each of the first guide units linked in the linking direction of the first guide units in a plane, a support piece protruding toward the inside of the pair of side walls in the opposite direction is provided at the end edge portion of the pair of side walls farther from the bottom wall toward the other side in the Z-axis direction, a screen anti-falling member having a plurality of needle-shaped portions installed in a spaced-apart manner at a base portion which freely bends in the pivotal direction of each of the first guide units and is long in shape is assembled in a detachable manner at the inside in the opposite direction of the pair of side walls of each of the first guide units, in the state of assembling the screen anti-falling member, the base portion is supported between each guide portion and each support piece of each of the first guide units, and all of the needle-shaped portions protrude toward the inside in the opposite direction of the pair of side walls of each of the first guide units, when the first guide portion is pulled out to the other side in the X-axis direction in conjunction with the frame which freely slides sliding toward the one side in the X-axis direction, the needle-shaped portions of each of the screen anti-falling members are inserted into the Z-axis direction end portion of the screen inserted between the pair of side walls of each of the first guide units of the portion pulled out of the first guide portion, so that the screen does not fall from the portion pulled out of the first guide portion, and when the first guide portion is housed inside the frame which freely slides in conjunction with the frame which freely slides sliding toward the other side in the X-axis direction, the needle-shaped portions of each of the screen anti-falling members are separated from the Z-axis direction end portion of the screen.

[0009] According to the present application, a plurality of screen anti-falling members corresponding to the types of the screen can be prepared in advance, in which a plurality of needle-shaped portions are attached to the base. Furthermore, one of them can be appropriately selected and attached to the inner side of the opposing direction of the two side walls of each first guide unit of the first guide portion, and even if the screen is repeatedly unfolded and stored, the damage to the Z-axis end portion of the screen inserted between the two side walls of the first guide unit forming the first guide portion can be suppressed. In addition, the first guide unit can be manufactured without regard to the type of the screen, and the first guide portion can be formed by only one type of first guide unit.

[0010] In the present application, it is preferable that the two side walls of each first guide unit are provided with a recessed portion recessed toward the inner side of the opposing direction, and the recessed portion extends in the same direction as the pulled-out portion of the first guide portion pulled out from the inside of the freely-slidable frame and extending in the X-axis direction, and a curved protrusion curved with a predetermined curvature is provided at the Z-axis end portion of the freely-slidable frame and at the pair of inner side surfaces opposing in the Y-axis direction, and the storage and pull-out of the first guide portion with respect to the inside of the freely-slidable frame are guided by inserting each curved protrusion into each recessed portion of each first guide unit. Accordingly, the first guide portion can be smoothly curved toward the other side of the Z-axis direction in the inside of the freely-slidable frame, and can be returned to the original state toward the other side of the X-axis direction in the inside of the freely-slidable frame. Therefore, the storage and pull-out of the first guide portion with respect to the inside of the freely-slidable frame can be smoothly achieved. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 is a partial cross-sectional view showing an embodiment of a screen device of the present application.

[0012] Figure 2 is a partial cross-sectional view showing an embodiment of a screen device of the present application. Figure 1

[0013] Figure 3 (a) is a side view showing the first guide portion shown in Figure 2 Figure 2

[0014] Figure 4 (a) is a side view showing the first guide portion shown in Figure 2 and Figure 3 (a) and (b) are side views of the first guide unit, (b) is a plan view thereof, (c) is a bottom view thereof, and (d) is a front view thereof.

[0015] Figure 5 (a) is a side view showing the first guide portion shown in Figure 2 and Figure 3 ​​​(a), (b) are side views of the screen anti-falling member shown in (a), (b) is a front view thereof.

[0016] Figure 6 is a view showing Figure 2 and Figure 3 (a), (b) are side views of the screen anti-falling member shown in (a), (b) is a front view thereof.

[0017] Figure 7 is a view showing Figure 1 (a), (b) are side views of the screen anti-falling member shown in (a), (b) is a front view thereof. Figure 2 (a), (b) are side views of the screen anti-falling member shown in (a), (b) is a front view thereof. DETAILED DESCRIPTION

[0018] With reference to Figure 1 , the screen device SD of the present embodiment is provided with the screen 1 which is freely expanded and housed, for example, is provided in an opening portion of a window frame, a door frame or the like, and opens and closes the opening portion in the horizontal direction by the screen 1. That is, in the screen device SD, the expansion and housing direction of the screen 1 is set to the X axis direction among the 3 axes which are orthogonal to each other, that is, the X axis, the Y axis and the Z axis, the X axis direction corresponds to the horizontal direction (left-right direction of Figure 1 ), and the Z axis direction corresponds to the vertical direction (up-down direction of Figure 1 ). Therefore, in the following description, the X axis direction is left on one side, the X axis direction is right on the other side, the Z axis direction is up on one side, and the Z axis direction is down on the other side.

[0019] The screen device SD is provided with: the first frame 2 which is long in the up-down direction and is hollow, and which allows the above-mentioned opening portion to freely slide in the left-right direction; the second frame 3 which is long in the up-down direction and is hollow, and which is disposed in opposition to the first frame 2 in the left-right direction and is fixed to the right end portion of the above-mentioned opening portion; and a pair of frames constituted by the first frame 2 and the second frame 3. The left end of the screen 1 is fixed to the first frame 2, and the right end of the screen 1 is fixed to the second frame 3. Specifically, the left end of the screen 1 is fixed to the right end portion of the first frame 2, and the right end of the screen 1 is fixed to a part of the outer peripheral portion in the up-down direction of a roller tube 31 which is long in the up-down direction and is hollow and is rotatably housed in the interior of the second frame 3. When the user of the screen device SD performs a closing operation of sliding the first frame 2 to the left side, the screen 1 is released from the outer peripheral portion of the roller tube 31 and is expanded in the above-mentioned opening portion, and when the user stops the closing operation, the screen 1 is wound on the outer peripheral surface of the roller tube 31 and is housed in the interior of the second frame 3. At this time, the first frame 2 is automatically slid to the right side, and when the right end thereof comes into contact with the left end of the second frame 3, the sliding of the first frame 2 to the right side is automatically stopped.

[0020] To realize that such a screen 1 is automatically housed inside the 2nd frame 3, a spiral spring 31a is provided inside the roller tube 31. When the 1st frame 2 is slid to the left side, the roller tube 31 is rotated forward inside the 2nd frame 3, so that the screen 1 is released, the spiral spring 31a is twisted around the rotation axis of the roller tube 31, and elastic force is generated and accumulated. When the user stops the closing operation, the accumulated elastic force is released, the roller tube 31 is rotated backward inside the 2nd frame 3, and thus the screen 1 is wound around the outer peripheral surface of the roller tube 31.

[0021] In addition, to smoothly realize the sliding of the 1st frame 2 in the left-right direction, the screen device SD is provided with an upper rail 4 at the upper end of the above-described opening portion, and a lower rail 5 at the lower end of the above-described opening portion. The upper rail 4 is a hollow member whose cross section in the up-down direction is in the shape of a U, and the upper end of the 1st frame 2 is inserted inside the upper rail 4. The lower rail 5 is a linear member which is long in the left-right direction. A not-shown wheel is provided at the lower end of the 1st frame 2, and this wheel rotates on the lower rail 5. In this way, the sliding of the 1st frame 2 in the left-right direction is guided by the upper rail 4 and the lower rail 5, and thus can be smoothly realized.

[0022] In addition, the screen device SD is provided with a 1st guide portion 6 and a 2nd guide portion 7 which are pulled out from inside the 1st frame 2 when the 1st frame 2 is slid to the left side, and are housed inside the 1st frame 2 when the 1st frame 2 is slid to the right side. The 1st guide portion 6 and the 2nd guide portion 7 each have a free end 61, 71 at one end, the portions 62, 72 pulled out from inside the 1st frame 2 maintain straightness in the left-right direction, and each extend linearly in the left-right direction between the lower end and the upper end of the 1st frame 2 and the 2nd frame 3 which are a pair of frames. Furthermore, the screen device SD is provided with a tension member 8 which is provided inside the 1st frame 2 and links the free ends 61, 71 of the 1st guide portion 6 and the 2nd guide portion 7. The tension member 8 can be formed in a loop shape without crossing, or can be formed in a loop shape with crossing. The shape of the tension member 8 is not particularly limited as long as it can link the free ends 61, 71 of the 1st guide portion 6 and the 2nd guide portion 7. For example, the tension member 8 can be a member which is not formed in a loop shape.

[0023] Reference Figure 2 , Figure 3 (a), (b), and Figure 4 (a), (b), (c), (d), the 1st guide portion 6 is formed by linking a plurality of 1st guide units 63. Each 1st guide unit 63 is provided with a 1st guide member 64 which is a linear member long in the left-right direction, and a 2nd guide member 65 which is a linear member long in the up-down direction. The 1st guide member 64 and the 2nd guide member 65 are linked by the tension member 8. Figure 2A pair of side walls 63a shown in the Y-axis direction are arranged upwardly opposite to each other, and a bottom wall 63b connecting the side walls 63a, 63a is pivotally supported at the first guide unit 63 of the other one of the two adjacent first guide units 63, 63 of the first guide section 6. By this pivotal support, the first guide section 6 is maintained linear in the left-right direction and curved upwardly. Further, at the upper left end portions of the side walls 63a, 63a of each first guide unit 63 corresponding to the upper end portions of the first guide section 6 pulled out from the inside of the first frame 2, a pair of pins 63c, 63c are provided toward the outside in the opposite direction of the side walls 63a, 63a, and a pair of openings 63d, 63d are provided at the upper right end portions.

[0024] Specifically, at each side wall 63a of each first guide unit 63, and at the peripheral portion of each pin 63c, a first depression 63a1 is formed which is recessed toward the inside in the opposite direction of the side walls 63a, 63a. The length of each pin 63c is the same as the amount of recess of the first depression 63a1, and the outer diameter of each pin 63c and the inner diameter of each opening 63d are such that each pin 63c can be fitted into each opening 63d with play. Further, at each side wall 63a, a first deficiency 63a2 is formed by cutting the peripheral portion of each opening 63d while leaving the upper end edge portion of each side wall 63a, and the upper end edge portion is formed as a tab 63e extending to the right. Furthermore, at the first depression 63a1, and at the lower right end portion, a mountain portion 63f is provided which is raised upwardly. Further, at the lower end portion of each side wall 63a, and at the portion located below the first depression 63a1, a second depression 63a3 is formed which is recessed by the same amount of recess as the first depression 63a1. Moreover, in each first guide unit 63, the bottom wall 63b is arranged at a position corresponding to the upper end portions of the second depressions 63a3 of the side walls 63a, 63a, and has a length from the left end of the second depression 63a3 to below the left end of the first deficiency 63a2.

[0025] In the first guide section 6, the two first guide units 63, 63 adjacent to each other are joined by inserting the left end portions of the two side walls 63a, 63a of the other first guide unit 63 into the opposite direction inner sides of the two side walls 63a, 63a of the one first guide unit 63, and fitting the respective pins 63c of the other first guide unit 63 into the respective holes 63d of the one first guide unit 63 in a manner having play. At this time, the two pins 63c, 63c form a pivot. The first guide section 6 is formed by repeatedly performing such joining. The pivoting range of the two first guide units 63, 63 adjacent to each other is from a position where the right end of the lower end portions of the two side walls 63a, 63a of the one first guide unit 63 contacts the left end of the lower end portions of the two side walls 63a, 63a of the other first guide unit 63 to a position where the respective tabs 63e of the two side walls 63a, 63a of the one first guide unit 63 contact the respective mountain portions 63f of the respective first depression portions 63al formed in the two side walls 63a, 63a of the other first guide unit 63. The pivoting range of each first guide unit 63 is the same, and by the pivoting of each first guide unit 63 within the above pivoting range, as shown in FIG. 6, the first guide section 6 is bent toward the upper end portion of the first frame 2 when housed inside the first frame 2, and returns to the original state toward the right when pulled out from inside the first frame 2. Figure 1

[0026] Further, when the first guide section 6 is pulled out from inside the first frame 2, the respective second depression portions 63a3 formed by the two side walls 63a, 63a of the one first guide unit 63, which is pivoted, among the two first guide units 63, 63 adjacent to each other are inserted into the opposite direction inner sides of the two side walls 63a, 63a of the other first guide unit 63. Therefore, in the portion 62 pulled out from inside the first frame 2 of the first guide section 6, the outer sides in the opposite direction of the lower end portions of the two side walls 63a, 63a of each first guide unit 63 are arranged on the same plane. Further, as described above, since the length of each pin 63c is the same as the amount of depression of the first depression portion 63al, the outer sides in the opposite direction of the two side walls 63a, 63a and the outer sides in the opposite direction of the upper end portions of the two side walls 63a, 63a of each pin 63c are arranged on the same plane.

[0027] ​Further, in each of the first guide units 63, a guide portion 63g is provided on the portion of the both side walls 63a, 63a on the inner side in the direction opposite to the direction in which the both side walls 63a, 63a face each other. Each of the guide portions 63g extends along an imaginary line VL in the face including the imaginary line VL connecting the centers of the above-mentioned pivots of each of the first guide units 63 in the connecting direction of the first guide units 63. Further, on the upper end edge portions of the both side walls 63a, 63a farther from the bottom wall 63b than the guide portions 63g, support pieces 63h are provided which project toward the inner side in the direction opposite to the direction in which the both side walls 63a, 63a face each other. Each of the support pieces 63h is arranged in opposition to the guide portion 63g of the side wall 63a on the side on which the support piece 63h is provided in the vertical direction, and a hollow receiving portion 63i is formed between the support piece 63h and the guide portion 63g. Figure 4 Specifically, each of the guide portions 63g has a length from the left end of each of the first guide units 63 to the lower side of the left end of the first deficiency portion 63a2. On the other hand, each of the support pieces 63h extends in the left-right direction except for the left end portion of each of the first guide units 63. Further, each of the support pieces 63h has an L-shaped front surface shape, and is composed of a locking portion 63h1 which is parallel to each of the side walls 63a and projects downward, and an inclined portion 63h2 which projects toward the inner side in the direction opposite to the direction in which the both side walls 63a, 63a face each other and extends with a downwardly inclined surface toward the guide portion 63g.

[0028] Each of the guide portions 63g functions as a guide when the screen fall-preventing member 9 is attached to and detached from the first guide portion 6. In conjunction with Figure 5 (a) and (b), the screen fall-preventing member 9 is composed of a base portion 91 which is long and flexible in the pivoting direction of each of the first guide units 63 of the first guide portion 6, and a plurality of needle-shaped portions 92 which are attached to the base portion 91 at intervals. The screen fall-preventing member 9 is attached to the inner side in the direction opposite to the direction in which the both side walls 63a, 63a face each other of the both side walls 63a, 63a of each of the first guide units 63 by inserting the base portion 91 into the inside of each of the receiving portions 63i from either of the left and right ends of the first guide portion 6. Each of the guide portions 63g guides the insertion of the base portion 91 of the screen fall-preventing member 9 into the receiving portion 63i when the screen fall-preventing member 9 is attached. In the state in which the screen fall-preventing member 9 is attached, the base portion 91 is supported between each of the guide portions 63g and each of the support pieces 63h, and all of the needle-shaped portions 92 project toward the inner side in the direction opposite to the direction in which the both side walls 63a, 63a face each other of the both side walls 63a, 63a of each of the first guide units 63. Further, the screen fall-preventing member 9 is guided by each of the guide portions 63g and can be detached from the first guide portion 6 by pulling the base portion 91 out of the inside of each of the receiving portions 63i from either of the left and right ends of the first guide portion.

[0029] Specifically, the base 91 is locked by the locking portion 63h1 of the support piece 63h of each of the first guide units 63, and all the needle-like portions 92 are inclined toward the bottom wall 63b along the downward inclined surface of the inclined portion 63h2 via the inclined portion 63h2. Figure 3 (b)). In the first guide section 6, through the inclination of all the needle-shaped portions 92, a [structure / form] is formed between the protruding front ends of the needle-shaped portions 92 of the two screen anti-fall-off components 9 assembled on the side walls 63a, 63a of each first guide unit 63. Figure 2 The gap along the Y-axis is shown.

[0030] As described above, since the base 91 of such a screen anti-falling component 9 can be freely bent in the pivoting direction of each of the first guide units 63 of the first guide portion 6, it can bend towards... Figure 1 When the upper end of frame 2 shown in the diagram is bent in the manner of... Figure 6 As shown, the anti-falling component 9 of the screen also bends in the same direction. Furthermore, as described above, since each guide rail portion 63g extends along the imaginary line VL within a plane including the imaginary line VL that connects the centers of the aforementioned pivots of each first guide unit 63 in the connecting direction, therefore, as... Figure 3 As shown in (a), the base 91 of each screen anti-falling component 9, which is mounted on the inner side of the opposing direction of the two side walls 63a, 63a of each first guide unit 63, is configured to be parallel to the imaginary line VL in the plane including the imaginary line VL. By configuring the base 91 parallel to the imaginary line VL in this way, the pivoting of each first guide unit 63, that is, the bending of the first guide portion 6, can be smoothly realized. In addition, since the pivot is located at the upper end of the first guide unit 63, the pivot is configured to move away from the lower end of the opening where the screen device SD is installed, moving upwards. Therefore, the pivot is less affected by dust, sand, dirt, etc. that easily accumulate at the lower end of the opening. Combined with the smooth bending of the first guide portion 6, the user can easily and stably perform the closing operation of the first frame 2. Similarly, since the base 91 of the anti-fall-off component 9 of the screen can easily return from a bent state to its original state, the first guide 6 can also smoothly return to its original state when it was pulled out from the inside of the first frame 2. Therefore, the unfolding action of the first frame 2 can also be carried out easily and stably.

[0031] Moreover, the recessed portions 63j are provided in the both side walls 63a, 63a of each first guide unit 63, extend in the same direction as the portion 62 of the first guide portion 6, and are recessed toward the inside of the opposite direction. The portion 62 of the first guide portion 6 is a portion that is pulled out from the inside of the first frame 2 and extends in the left-right direction. A third recessed portion 63a4 that is recessed toward the inside of the opposite direction of the both side walls 63a, 63a similarly to the first recessed portion 63al and the second recessed portion 63a3 is formed in the left end portion of the both side walls 63a, 63a in which the recessed portions 63j are provided. The third recessed portion 63a4 is positioned between the first recessed portion 63al and the second recessed portion 63a3 on each side wall 63a. In addition, a second cutout portion 63a5 is formed by cutting the inside surface of the right end portion of the both side walls 63a, 63a in which the recessed portions 63j are provided. Figure 4 (b) (c).

[0032] When the first guide portion 6 is pulled out from the inside of the first frame 2 and each first guide unit 63 is pivoted, the second cutout portion 63a5 of the first guide unit 63 that is pivoted coincides with the third recessed portion 63a4 of the adjacent first guide unit 63 that has finished pivoting. By this coincidence and the contact of the right end of the lower end portion of the both side walls 63a, 63a of the first guide unit 63 that is pivoted with the left end of the both side walls 63a, 63a of the first guide unit 63 that has finished pivoting, the straightness of the portion 62 of the first guide portion 6 that is pulled out from the inside of the first frame 2 is maintained. In addition, the inside surfaces of the opposite directions of the both side walls 63a, 63a in which the recessed portions 63j are provided are arranged on the same plane.

[0033] In addition, as shown in Figs. 2, 3, and 4, the first guide portion 6 is provided with a first guide unit 63 in each of the four corners of the first frame 2. The first guide unit 63 is provided with a bottom wall 63b that extends in the left-right direction and a pair of side walls 63a, 63a that extend upward from the left and right ends of the bottom wall 63b. The both side walls 63a, 63a are provided with a first recessed portion 63al that is recessed toward the inside of the opposite direction of the both side walls 63a, 63a. In addition, the both side walls 63a, 63a are provided with a second recessed portion 63a3 that is recessed toward the inside of the opposite direction of the both side walls 63a, 63a. Figure 3 (b) and Figure 4 (c), (d), a third cutout portion 63a6 is formed by cutting the inside surface of the opposite direction of the lower end portion of each second recessed portion 63a3 in the both side walls 63a, 63a of each first guide unit 63. The amount of the cutout of each third cutout portion 63a6 becomes smaller from the left end toward the right end of each second recessed portion 63a3. In addition, a guided piece 63k that protrudes toward the inside of the opposite direction of the both side walls 63a, 63a is continuously provided in the right end of each third cutout portion 63a6. The right end of each guided piece 63k is positioned at a lower position than the right end of the bottom wall 63b. When the first guide portion 6 is pulled out from the inside of the first frame 2, the both guided pieces 63k, 63k respectively contact the right end of the bottom wall 63b of the first guide portion 6 that is pulled out from the inside of the first frame 2 and the left end of the bottom wall 63b of the first guide portion 6 that is pulled out from the inside of the first frame 2. Figure 1The Y-axis direction one side end portion and the other side end portion of the lower rail 5 are engaged, so that the disengagement of each first guide unit 63 of the pulled-out portion 62 of the first guide portion 6 from the lower rail 5 can be suppressed. On the other hand, when the first guide portion 6 is housed in the interior of the first frame 2, each third deficiency portion 63a6 can smoothly release the engagement of each guided piece 63k with the aforementioned Y-axis direction one side end portion and the other side end portion of the lower rail 5, so that the disengagement from the lower rail 5 of each first guide unit 63 can be easily performed. As a result, the sliding of the first frame 2 in the left-right direction can be more smoothly performed.

[0034] Returning to Figure 1 , the first guide unit 63 located at the right end portion position of the first guide portion 6 is fixed to the lower end portion of the second frame 3, and the right end of the first guide portion 6 is a fixed end. In addition, the free end 61 of the first guide portion 6 is always housed in the interior of the first frame 2. Specifically, the free end 61 is located at the upper end position of the adjuster 10 that is raised and lowered in the longitudinal direction of the first frame 2. The adjuster 10 is connected to the first guide unit 63 located at the upper end position when the first guide portion 6 is housed in the interior of the first frame 2. The adjuster 10 has a hammer body 101 that is a rod-shaped body that is long in the vertical direction. When the gravitational force acting on the hammer body 101 acts on the portion of the first guide portion 6 housed in the interior of the first frame 2 to slide the first frame 2 to the left, the first guide portion 6 is smoothly pulled out to the right from the interior of the first frame 2 with the assistance of overcoming the elastic force of the coil spring 31a built in the roller pipe 31, and a sense of ease and stability is imparted by the closing operation of the user. In addition, the gravitational force acting on the hammer body 101 assists the housing of the first guide portion 6 in the interior of the first frame 2 when the first frame 2 is slid to the right to house the screen 1 in the interior of the second frame 3, and the winding of the screen 1 to the outer peripheral surface of the roller pipe 31 does not occur sharply due to the release of the elastic force accumulated by the coil spring 31a.

[0035] At the lower end portion of the first frame 2, and at Figure 2 A pair of inner side surfaces (not shown) that are opposed in the Y-axis direction are provided with curved protrusions 11 that are curved at a prescribed curvature. The curved protrusions 11 guide the housing and pulling out of the first guide portion 6 with respect to the interior of the first frame 2 by being inserted into the recessed portions 63j of each first guide unit 63. That is, the curved protrusions 11 are curved at a prescribed curvature that enables the first guide portion 6 to be curved in the interior of the first frame 2 in a manner that smoothly faces upward, and enables the first guide portion 6 to return to the right in the interior of the first frame 2. Therefore, more smooth housing and pulling out of the first guide portion 6 with respect to the interior of the first frame 2 can be achieved.

[0036] In the above screen device SD, as the first frame 2 slides to the left, and the first guide portion 6 is pulled out to the right from the inside of the lower end portion of the first frame 2, the lower end portion of the screen 1 is inserted between the two side walls 63a, 63a of each first guide unit 63 of the pulled-out portion 62 of the first guide portion 6. Specifically, the lower end portion of the screen 1 is inserted between the two screen anti-falling members 9 that are fitted to the two side walls 63a, 63a of each first guide unit 63, Figure 2 and Figure 3 the above gap between the front ends of the protruding directions of the needle-shaped portions 92 of (a) and (b). At this time, each needle-shaped portion 92 of the screen anti-falling member 9 is inserted into the inserted portion of the screen 1, and the screen 1 does not fall out of the pulled-out portion 62 of the first guide portion 6. In addition, as the first guide portion 6 is housed inside the first frame 2 as the first frame 2 slides to the right, the needle-shaped portions 92 of each screen anti-falling member 9 are separated from the portions inserted into the screen 1. As described above, in the screen device SD, the screen anti-falling member 9 is fitted in a detachable manner to the inside of the opposite directions of the two side walls 63a, 63a of each first guide unit 63 of the first guide portion 6, and therefore, a plurality of screen anti-falling members 9 can be prepared in advance, in which a plurality of needle-shaped portions 92 corresponding to the types of the screen 1 are attached to the base portion 91. Furthermore, one can be appropriately selected from among them and fitted to the two side walls 63a, 63a of each first guide unit 63 of the first guide portion 6, and even if the screen 1 is repeatedly unfolded and housed, the damage to the lower end portion of the screen 1 can be suppressed. In addition, the first guide unit 63 can be manufactured without regard to the type of the screen 1, and only one type of first guide unit 63 can be used to form the first guide portion 6.

[0037] In addition, each first guide unit 63 can be an integrally formed product made of a hard resin. In consideration of lightening, the screen 1 can also be a cloth or a mesh made of a woven resin fiber. The base portion 91 of the screen anti-falling member 9 can be a member made of a soft resin or a member made of a light metal such as an aluminum alloy. The needle-shaped portions 92 can be formed of appropriate materials corresponding to the types of the screen 1. In addition, the dimensions of each needle-shaped portion 92 and the intervals between the needle-shaped portions 92 can be appropriately set according to the types of the screen 1. For example, in the case where the screen 1 is a woven fabric or a mesh, the dimensions of each needle-shaped portion 92 are set to be able to enter the woven holes or the mesh openings, and the intervals between the needle-shaped portions 92 can be the same intervals as the woven hole intervals or the mesh opening intervals. Furthermore, the curved protrusions 11 can be formed of a material that is difficult to wear even if repeatedly inserted into the recesses 63j of the first guide units 63.

[0038] Further, as for the second guide section 7 provided in the screen device SD, the previous device can be adopted. The previous device is formed by linking a plurality of second guide units 73 as with the first guide section 6. Referring to Figure 7 , each second guide unit 73 is provided with a pair of side walls 73a, 73a arranged opposite to the Y-axis direction when the second guide section 7 is pulled out from the inside of the first frame 2, and a bottom wall 73b linking the side walls 73a, 73a. Further, in the second guide section 7, as long as one of the second guide units 73 among the two adjacent second guide units 73 is pivotally supported to the other second guide unit 73, and the upper end portion of the screen 1 being extended is inserted between the side walls 73a, 73a of each second guide unit 73 of the portion 72 of the second guide section 7 pulled out from the inside of the first frame 2, it is acceptable. As with the first guide section 6, the right end of the second guide section 7 is fixed to the second frame 3 as a fixed end.

[0039] In the screen device SD, the first guide section 6 housed in the inside of the first frame 2 and the second guide section 7 are housed in different areas in the inside of the first frame 2. That is, on a pair of inner side surfaces of the first frame 2 opposite to each other in the Y-axis direction, guide pieces 21 extending in the longitudinal direction of the first frame 2 and protruding toward the inside of the opposite direction of the two inner side surfaces are provided, except for the upper and lower end portions of the first frame 2. By the two guide pieces 21, the inside of the first frame 2 is divided into a first housing portion 22 housing the first guide section 6 and a second housing portion 23 housing the second guide section 7. The first housing portion 22 is located on the left side in the inside of the first frame 2, and the second housing portion 23 is located on the right side in the inside of the first frame 2. In this way, by dividing the housing areas of the first guide section 6 and the second guide section 7 into the first housing portion 22 and the second housing portion 23, the first guide section 6 and the second guide section 7 housed in the inside of the first frame 2 do not collide, and since they can be staggered in the inside of the first frame 2, the total length of the first guide section 6 and the second guide section 7 can be set to a size corresponding to the size of the left and right directions of the opening portion in which the screen device SD is provided. Further, the needle-shaped portion 92 of the screen fall prevention member 9 fitted on the opposite inside of the side walls 63a of each first guide unit 63 of the first guide section 6 is not damaged by the second guide section 7, so that the second guide unit 73 forming the second guide section 7 is not structurally restricted.

[0040] Further, the protruding ends of the two guide pieces 21, 21 are arranged apart from each other in the Y-axis direction, guide the lifting of the adjuster 10 of the first guide section 6, and guide the lifting of the guided member 12 forming the free end 71 of the second guide section 7 when the second guide section 7 is housed in the inside of the second housing portion 23. The free end 71 of the second guide section 7 is located at the lower end of the guided member 12.

[0041] Thus, when the first guide portion 6 and the second guide portion 7 are respectively housed within the first storage portion 22 and the second storage portion 23, which are different areas, inside the first frame 2, the size (left-right dimension) of the first frame 2 appears to become larger. Considering this issue, as... Figure 1 As shown, the second guide unit 73 preferably adopts the following structure: the vertical dimensions of the side walls 73a, 73a of the second guide unit 73, which are pulled out from the second storage portion 23 of the first frame 2, are shorter than the vertical dimensions of the side walls 63a, 63a of the first guide unit 63, which are pulled out from the first storage portion 22 of the first frame 2. In this case, when it is difficult to install a screen anti-falling component 9 like that mounted on the first guide portion 6 on the second guide portion 7, it can be installed on the upper guide rail 4. Figure 7 The pair of inner surfaces facing each other along the Y-axis shown are respectively fitted with a screen anti-falling component 13 that is longer in the left-right direction, using support plates or the like. The screen anti-falling component 13 can be constructed in the same way as the screen anti-falling component 9. In this case, each needle-like portion of the screen anti-falling component 13 inserts into the unfolded screen 1, preventing the unfolded screen 1 from falling off the upper guide rail 4 even when subjected to external forces such as wind pressure. Furthermore, even with repeated unfolding and folding of the screen 1, damage to the upper part of the screen 1 can be prevented.

[0042] Furthermore, in the screen device SD, a bending guide 14 with a bending surface 141 bending at a predetermined curvature is provided at the upper end of the second storage portion 23 of the first frame 2. The bending surface 141 of the bending guide 14 can contact the bottom wall 73b of each second guide unit 73 forming the second guide portion 7. The bending guide 14 contacts the bottom wall 73b through the bending surface 141, causing each second guide unit 73 to pivot and bend the second guide portion 7, and then returns in the left-right direction, thereby smoothly realizing the storage and pulling of the second guide portion 7 relative to the interior of the second storage portion 23, which accompanies the left-right sliding of the first frame 2. The predetermined curvature of the bending surface 141 can be appropriately set considering such bending and returning of the second guide portion 7.

[0043] Furthermore, in the screen device SD, pulleys and other direction-changing components 15 are provided at the upper and lower ends of the first storage section 22 inside the first frame 2. Each direction-changing component 15 is supported by a shaft on a block constituting the upper and lower ends of the first storage section 22. By hooking a tension member 8 onto a portion of the outer peripheral surface of each direction-changing component 15, the orientation of the tension member 8 can be changed in the vertical direction, and a predetermined tension can be applied to the tension member 8.

[0044] One end of the tension member 8 is fixed to the free end 71 of the second guide 7 using screws or the like. The tension member 8 extends upward within the first storage portion 22, hooks onto one of the direction-changing members 15 located at the upper end of the first storage portion 22, changes direction downward, and is fixed to the free end 61 of the first guide 6. Then it hooks onto the other direction-changing member 15 located at the lower end of the first storage portion 22, changes direction upward, and the other end is fixed together with one end to the free end 71 of the second guide 7, forming a non-crossing loop. With this loop-shaped tension member 8, the storage length and pull-out length of the first guide 6 and the second guide 7 relative to the interior of the first frame 2 are the same. As a result, the first frame 2 can reliably slide parallel to the second frame 3, and even if the user performs a closing operation at any point in the vertical direction of the first frame 2, the parallel sliding of the first frame 2 can still be achieved. Furthermore, the parallel sliding of the first frame 2 can also be achieved during the unfolding action caused by the elastic force of the coil spring 31a. The aforementioned sliding of the first frame 2 can be used to appropriately set the prescribed tension applied to the tension member 8.

[0045] Furthermore, when fixing one end and the other end of the tension member 8 to the free end 71 of the second guide portion 7, although the tension member 8 is moved from inside the first storage portion 22 into the second storage portion 23, as... Figure 7 As shown, the aforementioned insertion is achieved by separating the protruding ends of the two guide plates 21, 21 in the Y-axis direction. On the other hand, since the size of the first frame 2 appears to be large, it is sometimes difficult to perform the operation of fixing the tension member 8 to the free end 71 of the second guide portion 7. In this case, by making a portion of the guided member 12 forming the free end 71 protrude into the interior of the first receiving portion 22, and fixing one end and the other end of the tension member 8 to the protruding portion, the fixing operation of fixing the tension member 8 to the free end 71 of the second guide portion 7 can be easily performed. Figure 7 As shown, an opening 24 communicating with the first receiving portion 22 is formed on the left end face of the first frame 2. When wiring the tension member 8, the tension member 8 can be inserted into the interior of the first frame 2 through the opening 24. A cover (not shown) is installed in the opening 24 in a detachable manner.

[0046] While the present application has been described using the above-described embodiments, the present application is not limited to the above-described embodiments. For example, the screen device SD can be an automatic opening / closing device provided with a motor and using the torque of the motor when the motor is rotated to automatically open / close the screen 1, or a manual opening / closing device using manual operation to open / close the screen 1. In addition, the screen 1 can be a screen formed with a plurality of folds that can be folded. Furthermore, in the case of the manual opening / closing screen device SD, the second frame 3 can not be fixed to the opening portion, but can be freely slid in the left / right direction like the first frame 2, so that the screen device SD is a double-opening screen device. Moreover, the Z-axis direction is not limited to the horizontal direction, but can be a direction orthogonal to the X-axis direction. For example, the screen device SD can be provided to an opening portion inclined with respect to the vertical plane.

Claims

1. A screen device comprising: a screen capable of being freely unfolded and retracted; a pair of frames arranged opposite each other along the X-axis, wherein at least one of the frames is freely slidable along the X-axis when the unfolding and retraction direction of the screen is taken as the X-axis of three orthogonal axes, and the pair of frames consists of a first frame that is longer and hollow along the Z-axis and fixed to one end of the screen along the X-axis, and a second frame that is fixed to the other end of the screen along the X-axis; a first guide portion and a second guide portion, wherein the first guide portion and the second guide portion are freely slidable along the X-axis. When the sliding frame slides towards one side of the X-axis, it is pulled out from the inside of the freely sliding frame towards the other side of the X-axis. When the freely sliding frame slides to the other side of the X-axis, it is housed inside the freely sliding frame. The first guide portion and the second guide portion each have a free end at one end. The portions pulled out from the inside of the freely sliding frame extend linearly along the X-axis between one end of the pair of frames in the Z-axis direction and between the other end in the Z-axis direction. A tension member is disposed inside the freely sliding frame, connecting the free ends of the first guide portion and the second guide portion. The first guide section is formed by connecting multiple first guide units, each first guide unit having: a pair of side walls disposed opposite each other in the Y-axis direction when the first guide section is pulled out from the interior of the freely sliding frame, and a bottom wall connecting the two side walls. In the first guide section, one of two adjacent first guide units is pivotally supported by the other first guide unit. Through this pivotal support, the first guide section maintains straightness along the X-axis and bends to the other side along the Z-axis. One end of the unfolded screen along the Z-axis is inserted between the two side walls of each of the first guide units in the portion that is freely pulled out from the interior of the frame of the first guide section. Its features are, At one end of the X-axis of each first guide unit, corresponding to one end of the first guide portion that is pulled out of the freely sliding frame in the Z-axis direction, there is a pair of pins facing outward in the opposite direction of the two side walls. At the other end of the X-axis, there is a pair of openings. Two adjacent first guide units are connected by fitting the pins of the other first guide unit into the openings of one first guide unit with clearance. The two pins form a pivot. A guide rail portion is provided on the inner side of the opposite direction on both side walls of each first guide unit. The guide rail portion extends along the imaginary line in a plane including the imaginary line connecting the pivot centers of each first guide unit in the connection direction of the first guide unit. Support pieces protruding inward toward the opposite side of the Z-axis are provided on the end edges of the two side walls that are further away from the bottom wall than the guide rail portion. A long, narrow base that is flexible in the pivoting direction of each first guide unit is fitted with multiple needle-like anti-detachment screen components at intervals. These components are detachably mounted on the inner sides of the opposite side walls of each first guide unit. With the anti-detachment screen components mounted, the base is supported between the guide rails and support plates of each first guide unit, and all the needle-like parts protrude towards the inner sides of the opposite side walls of each first guide unit. When the freely sliding frame slides towards one side of the X-axis and the first guide portion is pulled out towards the other side of the X-axis, the needle-like portions of each screen anti-detachment component pierce into one end of the screen in the Z-axis direction between the two side walls of each first guide unit inserted into the pulled-out portion of the first guide portion, so that the screen will not fall off from the pulled-out portion of the first guide portion. In addition, when the freely sliding frame slides towards the other side of the X-axis and the first guide portion is housed inside the freely sliding frame, the needle-like portions of each screen anti-detachment component partially detach from one end of the screen in the Z-axis direction.

2. The screen device according to claim 1, characterized in that, Each of the first guide units has a recessed portion on each of its two side walls that is recessed inward in the opposite direction, and the recessed portion extends in the same direction as the pulled-out portion of the first guide portion that is pulled out from the interior of the freely sliding frame and extends along the X-axis. At one end of the freely sliding frame along the Z-axis, and on a pair of inner surfaces opposite each other along the Y-axis, are provided curved protrusions that bend with a specified curvature. By inserting each curved protrusion into the recess of each of the first guide units, the first guide part is guided to be retracted and pulled out relative to the interior of the freely sliding frame.

Images