Switchgear

Abstract

To reduce noise and vibration when an opening / closing is wound on top of each other and prevent the winding diameter thereof from increasing.SOLUTION: In an opening / closing device including an opening / closing body 10 that undergoes a closing movement in such a manner of dividing a space and guide rails 20 that guide the opening / closing body 10 at lateral sides thereof in the opening / closing direction on both sides of the width direction, and in which the opening / closing body 10 is housed in such a manner of being wound on top of each other in the opening direction, the opening / closing body 10 is provided with a buffer material 13 to be positioned between the inner and outer surfaces when the opening / closing body is wound on top of each other, and the buffer material 13 is sandwiched between the inner surface and the outer surface to deform elastically.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to an opening and closing device in which an opening and closing body that performs a closing operation to partition a space is wound and stacked on the open side and stored. [Background technology]

[0002] Conventionally, this type of opening and closing device has been known to include, for example, an opening and closing body having multiple long slats connected in the vertical direction, guide rails on both sides of the width direction that guide the opening and closing body in the opening and closing direction, and a winding shaft that winds up and stacks the opening and closing body on the opening direction side, as described in Patent Document 1. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2019-173450 Summary of the Invention [Problem to be solved by the invention]

[0004] However, with the above-described conventional opening and closing device, when the opening and closing body is wound up, the inner and outer surfaces of the opening and closing body come into contact with each other, generating noise, vibration, and the like. To cope with this, it is conceivable to sandwich a buffer material between the inner surface and the outer surface, but this requires some ingenuity, as there is a risk that the winding diameter will increase due to the presence of the buffer material. [Means for solving the problem]

[0005] In view of the above problems, the present invention has the following configuration. In an opening and closing device comprising an opening and closing body that performs a closing operation so as to partition a space, and guide rails that guide the opening and closing body in the opening and closing direction on both sides in the width direction, the opening and closing body is stored by being rolled up on the opening direction side, and a buffer material is provided on the opening and closing body so as to be positioned between the inner and outer surfaces when rolled up, and the buffer material is sandwiched between the inner and outer surfaces and elastically deformed. The opening / closing body has a plurality of slats extending in the width direction connected in the opening / closing direction, each slat being composed of a main body piece, a connecting portion provided on the opening direction side of the main body piece, and a connected portion provided on the closing direction side of the main body piece and connectable to the connecting portion of another slat, the connected portion being formed in a C-shaped vertical cross section with an open bottom so that the connecting portion can be inserted and hooked from the lower side, and being provided so as to protrude from the lower end side of the main body piece in one direction in the opening / closing body thickness direction, the buffer material having a flexible deformation portion that is pressed against the inner or outer surface to elastically flex and deform the free end side, the flexible deformation portion being formed in a piece-like shape that protrudes toward the side opposite the main body piece so as to fit along the upper surface side of the connected portion. It is characterized by: [Effects of the Invention]

[0006] Since the present invention is configured as described above, the noise and vibration generated when the opening and closing body is wound and overlapped can be reduced by the cushioning material, and the increase in winding diameter can be suppressed by the elastic deformation of the cushioning material. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a front view showing an example of an opening and closing device according to the present invention. [Figure 2] FIG. 10 is a perspective view showing an example of a state in which a cushioning material is attached to a slat. [Figure 3] FIG. 10 is a longitudinal cross-sectional view of a main part showing a state in which a buffer material is attached to a slat. [Figure 4] 10 is a longitudinal cross-sectional view of the essential part showing the state immediately after the opening / closing body is wound and overlapped and the outer cushioning material abuts against the inner surface of the opening / closing body. FIG. [Figure 5] 10 is a longitudinal cross-sectional view of a main part showing a state in which the opening / closing body is wound and overlapped, and the outer buffer material abuts against the surface of the inner opening / closing body and is elastically deformed. FIG. [Figure 6] FIG. 10 is a vertical cross-sectional view showing another example of the cushioning material. [Figure 7] FIG. 10 is a longitudinal cross-sectional view of a main portion showing another example of a slat and a buffer material. [Figure 8] FIG. 10 is a longitudinal cross-sectional view of a main portion showing another example of a slat and a buffer material. [Figure 9] FIG. 10 is a vertical cross-sectional view showing another example of the cushioning material. [Figure 10] 10(a) to 10(c) are vertical cross-sectional views showing other examples of the cushioning material. DETAILED DESCRIPTION OF THE INVENTION

[0008] This embodiment discloses the following features. The first feature is an opening / closing device that includes an opening / closing body that performs a closing operation to separate a space, and guide rails that guide the opening / closing body in the opening / closing direction on both sides of the width direction, and the opening / closing body is stored by being rolled up on the opening direction side, and a cushioning material is provided on the opening / closing body so that it is positioned between the inner and outer surfaces when rolled up, and the cushioning material is sandwiched between the inner and outer surfaces and elastically deformed (see Figures 1 to 10).

[0009] As a second feature, the opening / closing body is provided with an abutment portion that directly abuts against the outer surface after the cushioning material is sandwiched between the inner surface and the outer surface and elastically deformed (see Figures 3 to 5, 7, 8 and 10).

[0010] As a third feature, the buffer material is partially disposed outside the guide rail and near the center of the opening / closing body in the width direction (see FIGS. 1 and 2).

[0011] As a fourth feature, the buffer material has a flexible deformation portion that is pressed by the inner surface or the outer surface to elastically flex and deform the free end side (see FIGS. 3 to 10).

[0012] A fifth feature is that the opening / closing body has multiple slats extending in the width direction connected in the opening / closing direction, and each slat is composed of a main body piece, a connecting portion provided on the opening side of the main body piece, and a connectable portion provided on the closing side of the main body piece and connectable to the connecting portion of another slat, the connecting portion and the connectable portion protruding from the main body piece in one direction in the thickness direction of the opening / closing body, and the cushioning material protruding in that direction beyond the connecting portion and the connectable portion between the connecting portion and the connectable portion on both sides of the opening / closing direction of the main body piece (see Figures 3, 7, 8 and 10).

[0013] As a sixth feature, the connecting portion or the connected portion forms a fitting recess, and the cushioning material has a fitting portion that fits into the fitting recess (see FIGS. 3 to 5, 7, 8 and 10).

[0014] As a seventh feature, the buffer material has a hollow portion in the fitting portion (see FIGS. 3, 6, and 8 to 10).

[0015] As an eighth feature, the fitting portion of the buffer material is made of a material that is harder than the other portions (see FIG. 6).

[0016] As a ninth feature, the buffer material has a retaining piece that partially protrudes from the fitting portion in the thickness direction of the opening / closing body and is pressed against the inner surface of the fitting recess (see FIG. 9).

[0017] As a tenth feature, the buffer material has a retaining portion that is inserted into and locked onto the slat (see FIG. 7).

[0018] As an eleventh feature, the opening / closing body is provided with a stopper projection that bites into the buffer material to prevent the buffer material from coming off (see FIG. 8).

[0019] <Specific embodiment> Next, specific embodiments having the above-mentioned features will be described in detail with reference to the drawings.

[0020] In the following description, "thickness direction of the opening / closing body" refers to the thickness direction of the opening / closing body in the closed state, and "width direction of the opening / closing body" refers to a direction that is approximately perpendicular to the opening / closing direction of the opening / closing body, but is not the thickness direction of the opening / closing body. Also, the "opening / closing direction of the opening / closing body" means the direction in which the opening / closing body slides to partition or open the space.

[0021] Furthermore, the "outer side in the width direction of the opening / closing body" refers to the direction toward the outside of the opening / closing body along the width direction of the opening / closing body. For example, if the guide rail on the right side is used as the reference, the outer side in the width direction of the opening / closing body is the right side. Additionally, the "inner side in the width direction of the opening / closing body" refers to the direction toward the inside of the opening / closing body along the width direction of the opening / closing body. For example, if the guide rail on the right side is used as the reference, the inner side in the width direction of the opening / closing body is the left side.

[0022] Additionally, "outside in the thickness direction of the opening / closing body" means the side in the direction away from the center of the thickness of the opening / closing body along the thickness direction of the opening / closing body. Additionally, "inside the opening / closing body in the thickness direction" means the side toward the center of the opening / closing body along the thickness direction of the opening / closing body.

[0023] As shown in Figure 1, the opening and closing device 1 comprises an opening and closing body 10 that performs a closing operation to separate a space, guide rails 20 that guide the opening and closing body 10 in the opening and closing direction on both sides of the width direction, and a storage section 40 that stores the opening and closing body 10 by rolling it up on the opening side, and forms a shutter device that is attached to the opening part of, for example, a garage, factory, window sash, etc.

[0024] The opening / closing body 10 is formed by connecting multiple slats 11a, which are made by bending a horizontally elongated, approximately rectangular metal plate, so that they can rotate between adjacent slats 11a, 11a above and below to form the opening / closing body main body 11, and a seat plate member 12 is connected across the width to the closing direction end side of this opening / closing body main body 11 for abutting against the abutment target area G when fully closed. The opening / closing body 10 is provided with a buffer material 13 so as to be positioned between the inner and outer surfaces when the body is wound and stacked, and the buffer material 13 is sandwiched between the inner and outer surfaces and elastically deforms.

[0025] Each slat 11a is a member having an approximately concave cross section that extends continuously in the width direction of the opening / closing body, and integrally comprises an approximately plate-shaped (flat plate-shaped in the illustrated example) main body piece 11a1, a connecting portion 11a2 that is approximately hook-shaped or the like and provided at the end of the main body piece 11a1 in the opening direction, and a connected portion 11a3 that is provided at the end of the main body piece 11a1 in the closing direction and that hooks onto the connecting portion 11a2 of another slat 11a or the seat panel member 12 (see Figures 2 and 3). The connecting portion 11a2 and the connected portion 11a3 protrude from the main body piece 11a1 to one side in the thickness direction of the opening / closing body (to the left in FIG. 3).

[0026] Two slats 11a, 11a adjacent in the opening and closing direction can rotate relative to the other by engagement of the connecting portion 11a2 and the connected portion 11a3, and one can slide relative to the other in the width direction of the opening and closing body. The connected portion 11a3 is formed in a generally curled vertical cross section with an opening downward (in other words, a C-shaped vertical cross section with an opening downward) so that the connecting portion 11a2 can be inserted from below and latched.

[0027] Between the connected portion 11a3 and the inner surface of the main body piece 11a1, a fitting recess 11a4 is formed for fitting the cushioning material 13. The fitting recess 11a4 is recessed so that the dimension between the main body piece 11a1 and its opposing surface 11a32 gradually increases downward. The cushioning material 13 is fitted into the fitting recess 11a4.

[0028] The connected portion 11a3 also has a contact portion 11a31 for directly contacting the outer surface of the opening-closing body 10, which becomes the inner surface when the opening-closing body 10 is wound and overlapped. That is, a connection portion 11a3 is provided on the lower end side of each slat 11a so as to protrude in one direction in the thickness direction of the opening / closing body from the lower end side of the main body piece portion 11a1, and the tip portion of this connection portion 11a3 functions as an abutment portion 11a31 (see Figure 3). This contact portion 11a31 comes into direct contact with the outer surface of the opening / closing body 10 after the buffer material 13 is sandwiched between the inner and outer surfaces of the opening / closing body 10 and gradually elastically deforms.

[0029] The buffer material 13 is partially disposed outside the guide rail 20 and near the center in the width direction of each slat 11a of the opening / closing body 10 (see FIGS. 1 and 2). This cushioning material 13 is positioned between the connecting portion 11a2 and the connected portion 11a3 at the top and bottom of the main body piece 11a1, and fits into the mating recess 11a4, protruding further toward the opposite main body piece 11a1 than the connecting portion 11a2 and the connected portion 11a3 in the thickness direction of the opening / closing body (see Figure 3). The cushioning material 13 integrally includes a fitting portion 13a that fits into the fitting recess 11a4, and a flexible deformation portion 13b that protrudes from the fitting portion 13a toward the side opposite to the main body piece 11a1 (to the left in FIG. 3).

[0030] The fitting portion 13a has a cross section that protrudes downward so as to fit into the fitting recess 11a4. In more detail, as shown in Figure 3, this fitting portion 13a protrudes downward while gradually expanding in the thickness direction of the opening / closing body, and has a hollow portion 13a1 at its tip end that is shaped like an inverted concave notch and opens downward.

[0031] The hollow portion 13a1 facilitates elastic contraction and deformation of the fitting portion 13a in the thickness direction of the opening / closing body when the fitting portion 13a is fitted into the fitting recess 11a4. As another example of the hollow portion 13a1, it is also possible to use a cavity portion that exists inside the fitting portion 13a so that the periphery is covered.

[0032] The flexible portion 13b is formed in a strip shape that protrudes from the mating portion 13a toward the side opposite the main body portion 11a1 so as to fit along the upper surface of the connected portion 11a3, with its tip curved upward and its free end pointing toward the main body portion 11a1. An appropriate space is secured between this free end and the main body portion 11a1 to allow flexible deformation of the flexible portion 13b. In one example shown in Figure 3, this flexible deformation portion 13b is formed in a semicircular ring shape in vertical cross section that protrudes further toward the opposite main body piece 11a1 side than the connected portion 11a3, and is continuous across the width of the opening / closing body in a portion near the center of the opening / closing body 10 (see Figure 2).

[0033] The guide rails 20 are provided on both the left and right sides of the opening / closing body 10. Each guide rail 20 is inserted into the opening at the end side in the width direction of the opening / closing body 10, surrounding the opening in a concave cross section, and continues vertically between the contact target area G and the storage section 40. An obstacle detection sensor such as a multi-optical axis sensor may be provided inside this guide rail 20 as needed.

[0034] As shown in FIG. 1, the storage section 40 includes a storage case 41 having an opening at the bottom for allowing the opening / closing body 10 to enter and exit, a winding shaft 42 for winding up and unwinding the opening / closing body 10, an opening / closing machine 43 for driving and rotating the winding shaft 42 and braking it via a power transmission mechanism such as a chain and sprocket, and a control circuit (not shown).

[0035] The winding shaft 42 is formed in a cylindrical shape oriented axially in the width direction of the opening-closing body, and the upper end of the opening-closing body 10 is connected to its outer circumferential surface. When the winding shaft 42 rotates in one direction, the opening-closing body 10 is wound up and stacked around the outer circumferential surface (see Figures 4 and 5), and when the winding shaft 42 rotates in the opposite direction, the opening-closing body 10 is unwound downward.

[0036] Next, the characteristic functions and effects of the opening and closing device 1 having the above configuration will be described in detail. When the opening-closing body 10 is wound around the winding shaft 42, first, the inner surface of the radially innermost slat 11a comes into contact with the outer peripheral surface of the winding shaft 42, as shown in FIG. More specifically, the cushioning material 13 of each slat 11a abuts against the outer circumferential surface of the winding shaft 42 and gradually bends elastically, and then the abutting portion 11a31 of the connected portion 11a3 abuts against the outer circumferential surface of the winding shaft 42.

[0037] Next, when the outer opening-closing body 10 is wrapped around the inner opening-closing body 10, the cushioning material 13 of the outer slat 11a first abuts against the outer surface of the inner slat 11a (see FIG. 4). At this point, there is a gap S between the abutting portion 11a31 of the connected portion 11a3 and the inner slat 11a. Thereafter, the buffer material 13 gradually bends elastically, and the contact portion 11a31 of the connected portion 11a3 comes into contact with the outer surface of the inner slat 11a.

[0038] In this way, when the inner surface of each slat 11a comes into contact with the outer circumferential surface of the winding shaft 42 or the surface of the slat 11a, the cushioning material 13 first comes into contact and gradually bends elastically, and then the contact portion 11a31 of the connected portion 11a3 comes into contact with the surface of the slat 11a. Therefore, this gradual contact can reduce noise, vibration, and other impacts. Moreover, since each buffer material 13 undergoes effective flexural deformation, an increase in the winding diameter of the opening / closing body 10 can be suppressed.

[0039] Furthermore, the pressure applied by the soft cushioning material 13 to the inner member (winding shaft 42 or slat 11a) is maintained at a substantially constant low pressure after the hard connected portion 11a3 comes into contact with the inner member, thereby reducing the likelihood of rubber marks or wear powder from the cushioning material 13 being left on the outer surface of each slat 11a. Therefore, the buffer material 13 can be placed near the center of the width of the opening / closing body 10, which has a large deflection in the width direction, without being placed inside the guide rail 20, thereby effectively reducing the winding noise of the opening / closing body 10, etc.

[0040] <Modification> Next, a modification of the above configuration will be described. In the following modified examples, the configuration of the opening and closing device 1 is partially changed, so the modified parts will be mainly described in detail, and overlapping detailed descriptions will be omitted.

[0041] The cushioning material 13' shown in FIG. 6 is formed by two-color molding or the like, with the fitting portion 13a made of an elastic material that is harder than the deflection portion 13b. For example, when the buffer material 13' is made of a rubber material, the rubber hardness of the fitting portion 13a is set to be higher than the rubber hardness of the flexible deformation portion 13b.

[0042] Therefore, the cushioning material 13' having the above configuration can prevent the fitting portion 13a from being elastically deformed and unintentionally coming out of the fitting recess 11a4.

[0043] In the embodiment shown in FIG. 7, the slats 11a of the above configuration are replaced with slats 11a', and the buffer material 13 is replaced with a buffer material 13''.

[0044] The slat 11a' has a through hole 11a41 formed in the bottom of the fitting recess 11a4. The cushioning material 13'' has a retaining portion 13a2 with an arrow-shaped cross section provided on the lower end side of the fitting portion 13a. The retaining portion 13a2 elastically contracts to be inserted into the through-hole 11a41 of the slat 11a', and elastically restores itself below the through-hole 11a41, thereby functioning as a retaining portion.

[0045] Therefore, according to the embodiment shown in FIG. 7, the retaining portion 13a2 can effectively prevent the cushioning material 13'' from being unintentionally removed.

[0046] In addition, in the embodiment shown in FIG. 8, the slats 11a in the above configuration are replaced with slats 11a''. The slat 11a'' is formed by partially cutting and bending the lower end side of the main body piece 11a1, and providing a stopper protrusion 11a11 that bites into the buffer material 13 in the thickness direction of the opening / closing body.

[0047] Therefore, according to the embodiment shown in FIG. 8, the anti-detachment projections 11a11 can effectively prevent the cushioning material 13 from being unintentionally detached.

[0048] In the opening and closing device 1, the buffer material 13 can be replaced with a buffer material 13X1 shown in FIG. The buffer material 13X1 has a retaining piece 13a3 that partially protrudes from the fitting portion 13a in the thickness direction of the opening / closing body and is pressed against the inner surface of the fitting recess 11a4.

[0049] A plurality of retaining pieces 13a3 are provided on one surface and the other surface of the fitting portion 13a in the thickness direction of the opening / closing body. According to a preferred example shown in the figure, each retaining piece 13a3 protrudes from the fitting portion 13a and is inclined in the opposite direction (upward in the example shown) to the depth direction of the fitting recess 11a4. In the example shown in FIG. 9, the retaining pieces 13a3 are provided on one side and the other side of the fitting portion 13a in the thickness direction of the opening / closing body, but in another example, one of them may be omitted. Furthermore, the shape and number of the retaining pieces 13a3 may be other than those shown in the illustration. The material of the retaining piece 13a3 is not limited, but is preferably a soft material (for example, rubber or elastomer resin).

[0050] By using the cushioning material 13X1 having the above-described configuration, the anti-pullout piece 13a3 can form a portion where the pressure contact force is locally high between the fitting portion 13a and the inner surface of the fitting recess 11a4, thereby effectively preventing the cushioning material 13 from slipping out of the fitting recess 11a4.

[0051] In the above embodiment, the opening / closing body 10 is designed to be rolled inward as shown in Figure 4. However, as another example, it is also possible to design it to be rolled outward so that the surface of the slat 11a (the right side in Figure 4) faces the center of the winding shaft 42. In this case, too, the effect of shock absorption by the cushioning material 13 can be obtained.

[0052] Furthermore, according to the above embodiment, the flexible deformation portion 13b is formed in a semicircular ring shape in longitudinal cross section, but as other examples, it is possible to form it in the form shown in Figures 10(a) to (c) or in an elastically deformable shape other than the illustrated example.

[0053] The cushioning material 13X2 (see Figure 10(a)) has an engaging portion 13a that engages with the engaging recess 11a4, and a flexible deformation portion 13b' that protrudes from the upper end side of the engaging portion 13a toward the opposite side of the main body piece 11a1 (to the left side in Figure 10) and curves downward. By using this cushioning material 13X2, it is possible to prevent water droplets, foreign matter, etc. from adhering to the flexible deformation portion 13b', and in turn, it is possible to effectively bend the flexible deformation portion 13b', thereby obtaining a good cushioning effect when the opening / closing body is rolled up and stacked.

[0054] In addition, the cushioning material 13X3 (see Figure 10(b)) has an engaging portion 13a that engages with the engaging recess 11a4 and a flexible deformation portion 13e that has a horizontal T-shape in vertical cross section and protrudes from the upper end side of the engaging portion 13a toward the opposite side of the main body piece 11a1 (to the left side in Figure 10). The flexible deformation portion 13e has a protruding piece portion 13e1 protruding from the upper end side of the fitting portion 13a, and an extending piece portion 13e2 extending from the tip of this protruding piece portion to both sides in the opening and closing direction of the opening and closing body, and is continuous in the width direction of the opening and closing body. By using this buffer material 13X3, when the opening / closing body is wound up, the flexible deformation portion 13e having a transverse T-shape in vertical cross section can be elastically bent, thereby obtaining a good buffer effect.

[0055] In addition, the cushioning material 13X4 (see Figure 10(c)) has an engaging portion 13a that engages with the engaging recess 11a4 and a hollow elastic deformation portion 13c that protrudes from the upper end side of the engaging portion 13a toward the opposite side of the main body piece 11a1 (left side according to Figure 10). The elastically deformable portion 13c has therein a hollow portion 13d which continues in the width direction of the opening / closing body and has an end side which is open to the outside. By using this cushioning material 13X4, the elastically deforming portion 13c can be effectively compressed and deformed by the hollow portion 13d, and as a result, a good cushioning effect can be obtained when the opening / closing body is wound up.

[0056] Furthermore, in the above embodiment, the flexible deformation portion 13b is provided as a preferred embodiment, but as another example, it is also possible to adopt an embodiment in which the flexible deformation portion 13b is not provided and the flexible deformation portion 13b is elastically contracted.

[0057] Furthermore, in the above embodiment, the cushioning material is formed in a short shape in the width direction of the opening / closing body, but as other examples, it is also possible to form this cushioning material in a long shape in the width direction of the opening / closing body, to provide it over the entire width direction of the opening / closing body, or to make it shorter in the width direction of the opening / closing body than in the illustrated example.

[0058] In addition, in the example shown in Figure 1, multiple cushioning materials 13 are provided at intervals in the vertical direction over approximately the entire vertical length of the opening / closing body 10, and it is possible to omit the cushioning materials 13 in the parts of the opening / closing body 10 that cannot be rolled up and down (a specified range on the closing end side of the opening / closing body).

[0059] In addition, in the example shown in Figure 1, a single cushioning material 13 is provided in the center of the width of the opening / closing body 10, but in other examples, it is also possible to provide the cushioning material 13 in a position other than the center of the width, such as providing the cushioning material 13 closer to the opening / closing mechanism 43 in the width direction of the opening / closing body. As another example, it is also possible to arrange a plurality of buffer materials 13 at predetermined intervals or at equal intervals across the width direction of the opening / closing body.

[0060] Furthermore, the cushioning material of the above configuration can be provided on one or both sides of the opening / closing body 10 in the thickness direction, and in particular, when provided on only one side, it is preferable to place it on the indoor side when the opening / closing body is closed, from the standpoint of preventing adverse effects from external wind and vandalism.

[0061] In addition, in the above embodiment, the opening / closing body 10 is configured to open and close in the vertical direction, but other examples include a configuration in which the opening / closing body 10 is configured to open and close in the left-right direction, or a configuration in which the opening / closing body 10 is configured to open and close in the horizontal direction or in an inclined direction.

[0062] In addition, in the above embodiment, a single-shaft winding device was configured to wind up the opening / closing body 10 using a single winding shaft 42, but as another example, it is also possible to configure a two-shaft winding device in which the opening / closing body 10 undergoes an opening operation, is changed in direction by a direction change shaft on the opening direction side, and then is wound up by a winding shaft.

[0063] The present invention is not limited to the above-described embodiments, and can be modified as appropriate within the scope of the present invention. [Explanation of symbols]

[0064] 1: Switchgear 10: Opening and closing body 11: Opening and closing body 11a, 11a', 11a”: Slats 11a1: Main body part 11a2: Connection 11a3: Connected part 11a31: Contact part 13,13',13X1,13X2,13X3,13X4: Cushioning material 13a: Fitting part 13a1: Hollow part 13a2: Stopper 13a3: Anti-slip piece 13b, 13b', 13e: deflection deformation portion 20: Guide rail 40: Storage area 42: Winding shaft

Claims

1. An opening and closing device comprising an opening and closing body that performs a closing operation so as to partition a space, and guide rails that guide the opening and closing body in an opening and closing direction on both sides in a width direction, and the opening and closing body is stored by being rolled up on the opening direction side, The opening / closing body is provided with a buffer material so as to be positioned between the inner surface and the outer surface when the opening / closing body is wound and stacked, the buffer material is sandwiched between the inner surface and the outer surface and elastically deforms; The opening / closing body has a plurality of slats extending in the width direction connected in the opening / closing direction, Each slat is composed of a main body piece, a connecting portion provided on the opening direction side of the main body piece, and a connecting portion provided on the closing direction side of the main body piece and connectable to the connecting portion of another slat, The connected portion is formed in a C-shaped vertical cross section with an opening at the bottom, so that the connecting portion can be inserted and latched from the bottom side, and is provided so as to protrude from the lower end side of the main body piece in one direction in the thickness direction of the opening / closing body, the buffer material has a flexible deformation portion that is pressed by the inner surface or the outer surface to elastically flex and deform a free end side thereof, The opening and closing device is characterized in that the flexible deformation portion is formed in a piece shape that projects toward the opposite side of the main body piece along the upper surface side of the connected portion.

2. 2. The opening and closing device according to claim 1, wherein the opening and closing body is provided with an abutment portion that directly abuts against the outer surface after the buffer material is sandwiched between the inner surface and the outer surface and elastically deformed.

3. 3. The opening / closing device according to claim 2, wherein the buffer material is partially disposed outside the guide rail and toward the center of the opening / closing body in the width direction.

4. An opening and closing device as described in any one of claims 1 to 3, characterized in that the flexible deformation portion has its tip side curved upward.

5. An opening and closing device as described in Claim 4, characterized in that the flexible deformation portion has a free end portion, which is the most pointed end on the tip side, facing toward the main body piece portion.

6. An opening and closing device as described in Claim 5, characterized in that a space is secured between the free end portion and the main body piece portion, the space being sufficient to allow the flexible deformation portion to undergo flexible deformation.

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