Switchgear

Abstract

To provide a closing gear capable of suppressing deformation of widthwise edges of an opening / closing body that is configured by attaching a locked means to a mounting surface of an end portion in the width direction of the opening / closing body while improving the effect of preventing slipping out of the ends of the opening / closing body out of a guide rail in the width direction.SOLUTION: A closing gear includes means to be locked 7 that prevents an opening / closing body from coming out of the guide groove at the width direction ends in the width direction by engaging with locking means. The means to be locked includes: a mounting portion (mounting plate portion 7X) attached to the mounting surface 42a at the end in the width direction of the opening / closing body; and a locked portion (locked plate portion 7Y) that extends outward in the width direction from the edge 41s of the opening / closing body in the width direction which can be locked with the locking means. The mounting surface 42a at the end in the width direction of the opening / closing body is a curved surface that curves along the opening / closing direction V. The mounting surface 7E at the mounting portion of the locked means mounted on the curved surface forming the mounting surface is a non-flat surface that corresponds to the curved surface that forms the mounting surface.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to an opening and closing device that has an improved effect of preventing the widthwise ends of an opening and closing body from coming off guide rails. [Background technology]

[0002] In an opening and closing device (shutter device) comprising an opening and closing body for opening and closing an opening formed in an architectural structure, and a guide rail having a guide groove disposed on both left and right widthwise end sides of the opening and closing body to guide the widthwise end of the opening and closing body along the opening and closing direction of the opening and closing body, a locking mechanism is provided within the guide rail to prevent the opening and closing body from falling off the guide rail, the locking mechanism comprising a lock plate (engagement means) having a fixed portion (mounting portion) formed by one end side of a plate body attached to the widthwise end (mounting surface) of the opening and closing body, and a claw portion (engagement portion) formed by bending the other end side of the plate body that extends widthwise outward beyond the widthwise end edge of the opening and closing body, and a locking mechanism attached to the inner peripheral surface of the guide rail An opening and closing device is known which is provided with a locking body (locking means) arranged on the plate body and having an abutment surface facing the surface of the claw portion, and anti-slip means, wherein the claw portion is formed by bending the other end side of the plate body so that it is inclined toward the side where the locking body is located so that the angle between the surface of the claw portion and the surface of the fixing portion is an obtuse angle, and the surface of the claw portion is provided at a position spaced from the widthwise edge of the opening and closing body and is configured to be spaced from the abutment surface of the locking body or to be in contact with the abutment surface of the locking body to prevent the opening and closing body from falling off the guide rail, and the anti-slip means is configured as a plurality of irregularities or a plurality of grooves formed on the surface of the claw portion facing the locking body (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6571397 Summary of the Invention [Problem to be solved by the invention]

[0004] In Patent Document 1, a fixing portion (mounting portion) of a lock plate (retaining means) is attached by welding or the like to the plate surface (mounting surface) of the slat panel portion at the widthwise end of the opening / closing body, i.e., the widthwise end of one or more of the multiple slats that make up the opening / closing body. 11, for example, the mounting surface 42a of the slat panel 42 to which the mounting portion 70X of the locked means 70 is attached by welding or the like is formed as a curved surface that curves along the opening / closing direction V of the opening / closing body, whereas the mounting surface 70m of the mounting portion 70X of the locked means 70 is formed as a flat surface that follows the opening / closing direction V of the opening / closing body. In this case, the locked means 70 and the slat panel 42 of the opening / closing body are joined by an upper welded joint wa, where the upper edge of the mounting surface 70m of the locked means 70 in the opening / closing direction V contacts the mounting surface 42a, and a lower welded joint wb, where the lower edge of the mounting surface 70m of the locked means 70 contacts the mounting surface 42a, welded. In such a joining structure between the engaging means 70 and the slat panel portion 42 of the opening / closing body, the mounting surface 42a of the slat panel portion 42 is curved and the mounting surface 70m of the engaging means 70 is flat, so the contact area between the mounting surface 70m and the mounting surface 42a is a line contact area between the upper edge of the mounting surface 70m and the mounting surface 42a, and a line contact area between the lower edge of the mounting surface 70m and the mounting surface 42a. Therefore, when a force from the locking means 70 is applied to the slat face plate portion 42, the slat face plate portion 42 receives the force at the line contact portion, which makes it easier for a localized force to be applied to the slat face plate portion 42, making it more likely to deform. In addition, if the width L of the mounting surface 70m of the mounting portion 70X of the locking means 70 along the opening / closing direction V is the same as the width L of the locking portion 70Y along the opening / closing direction V and the width L is the same, the mounting width L (= width L) of the locking means 70, which is the distance between the upper welded joint wa and the lower welded joint wb determined by the width L, becomes shorter, making the slat face plate portion 42 more likely to deform. As described above, when the slat face plate portion 42 deforms, the locking means 70 becomes more likely to come off the locking means of the guide rail, which causes the widthwise end of the opening / closing body to easily slip out of the guide rail.

[0005] In order to solve the above-mentioned problems, the present invention provides an opening and closing device that is configured by attaching a locking means to the mounting surface of the widthwise end of the opening and closing body, and can suppress deformation of the widthwise end of the opening and closing body, thereby improving the effectiveness of preventing the widthwise end of the opening and closing body from slipping out of the guide rail. [Means for solving the problem]

[0006] The opening and closing device according to the present invention includes an opening and closing body for opening and closing an opening formed in an architectural structure, and a pair of opening and closing members disposed on both left and right widthwise end portions of the opening and closing body. Open In the opening and closing device, the guide rail has a guide groove that guides the closing body along the opening and closing direction, and the guide rail has a locking means in the guide groove, and the left and right width direction ends of the opening and closing body have a locking means that locks with the locking means provided in the guide groove of the guide rail to prevent the width direction ends of the opening and closing body from slipping out of the guide groove, and the locking means are attached to the attachment surface of the width direction end of the opening and closing body. Mounting plate section that functions as and a locking portion that extends outward in the width direction from the widthwise edge of the opening / closing body and can be locked by the locking means. The plate portion to be locked functions as The mounting surface at the width direction end of the opening / closing body is a curved surface that curves along the opening / closing direction, and the engaging means is attached to the curved surface that forms the mounting surface. Mounting plate The mounting surface is a non-planar surface that corresponds to the curved surface along the curved surface that forms the mounting surface. The pseudo-curved surface has a reference plane extending along the opening / closing direction and end-side planes extending from both ends of the reference plane in the opening / closing direction in a direction intersecting the reference plane and away from each other, and the mounting plate portion of the locked means is constituted by a plate portion having a pseudo-curved surface and a plane facing the pseudo-curved surface, and the plane facing the pseudo-curved surface is constituted by a plane parallel to the reference plane. It is characterized by: The aforementioned The contact portion between the upper end edge in the opening / closing direction of the mounting surface of the locked means and the mounting surface is welded, and the contact portion between the lower end edge in the opening / closing direction of the mounting surface of the locked means and the mounting surface is welded, so that a gap is formed between the reference plane and the mounting surface, and the flat surfaces on each end side and the mounting surface are in close proximity to each other. It is characterized by: The width of the mounting surface of the mounting portion of the locked means along the opening and closing direction is longer than the width of the locked portion of the locked means along the opening and closing direction. According to the opening and closing device of the present invention, deformation of the widthwise end of the opening and closing body, which is configured by attaching an engaging means to the mounting surface of the widthwise end of the opening and closing body, can be suppressed, and an opening and closing device can be provided that improves the effectiveness of preventing the widthwise end of the opening and closing body from slipping out of the guide rail. [Brief explanation of the drawings]

[0007] [Figure 1]FIG. 1 is a perspective view of an opening and closing device (first embodiment). [Figure 2] 1A and 1B are diagrams showing a slat having a locking means attached to its widthwise end, in which (a) is a perspective view and (b) is a side view (Embodiment 1). [Figure 3] 4A and 4B are diagrams showing a locking means attached to the attachment surface of the end of a slat, in which (a) is a front view and (b) is a cross-sectional view taken along line AA of (a) (Embodiment 1). [Figure 4] 1A and 1B are diagrams showing the locked means, in which (a) is a perspective view, (b) is a plan view, (c) is a side view, and (d) is a rear view (Embodiment 1). [Figure 5] FIG. 2 is a cross-sectional view showing a locking means and a locked means (first embodiment). [Figure 6] FIG. 10 is an explanatory diagram showing the engagement state between the locking means and the locked means (Embodiment 1). [Figure 7] FIG. 10 is an explanatory diagram showing the engagement state between the locking means and the locked means (Embodiment 1). [Figure 8] 1A is an enlarged cross-sectional view showing the locked means, and FIG. 1B is an enlarged cross-sectional view of the locking means (Embodiment 1). [Figure 9] 10A and 10B are diagrams showing the locked means, where (a) is a perspective view, (b) is a front view, and (c) is a cross-sectional view showing the joining state between the mounting surface of the locked means and the mounted surface (Embodiment 2). [Figure 10] 10A and 10B are diagrams showing a locking means attached to the attachment surface of the end of a slat, in which (a) is a front view and (b) is a cross-sectional view taken along line AA of (a) (Embodiment 3). [Figure 11] 10A and 10B are diagrams showing a locking means attached to the attachment surface of the slat end, where (a) is a front view and (b) is a cross-sectional view taken along line AA of (a) (conventional example). DETAILED DESCRIPTION OF THE INVENTION

[0008] Embodiment 1 As shown in FIG. 1, an opening / closing device 1 according to the first embodiment, which is also called a shutter or shutter device, includes an opening / closing body storage case (hereinafter abbreviated as case) 2, an opening / closing mechanism 3, an opening / closing body 4, and a guide rail 5. In this specification, the "front-to-back direction of the opening 13 formed in the architectural structure" refers to a direction perpendicular to the opening / closing direction (up-down direction) V of the opening / closing body 4 that opens and closes the opening 13 and the width direction (left-right direction) W of the opening / closing body 4. Furthermore, the front side of opening 13 is "either the indoor side or the outdoor side," and the rear side of opening 13 is "either the indoor side or the outdoor side." That is, the front side of opening 13 shown in Fig. 1 may be the outdoor side and the rear side of opening 13 may be the indoor side, or the front side of opening 13 may be the indoor side and the rear side of opening 13 may be the outdoor side. In Fig. 5, the rear side of opening 13 is defined as one of the indoor side and the outdoor side, and the front side of opening 13 is defined as the other of the indoor side and the outdoor side. Furthermore, "architectural structures" refers to so-called buildings such as detached houses, apartment buildings, buildings, warehouses, factories, etc., exterior structures such as garages, carports, gates, and fences, and structures such as tunnels and underground shopping malls.

[0009] The opening and closing mechanism 3 is provided inside the case 2 on the storage side. The opening / closing mechanism 3 includes a winding body 20 such as a winding shaft or a winding frame that winds up the opening / closing body 4, and an opening / closing drive means (not shown) that rotates the winding body 20 around the rotation center line 21 of the winding body 20 as the center of rotation. In the case of an electric shutter device, the opening / closing drive means is composed of an electric motor as a drive source (not shown) that rotates the winding body 20 in the winding direction and the unwinding direction, and a power transmission mechanism such as a gear transmission mechanism that transmits the rotational force of the electric motor to the winding body 20; in the case of a manual shutter device, it is composed of a spring (not shown) that rotates the winding body 20 in the winding direction, and a power transmission means such as a pulley that transmits the rotational force stored in the spring to the winding body 20. The winding body 20 is rotatably supported, for example, by bearings (not shown) attached at both ends to the left and right brackets 22, 22 of the case 2, and rotates in the direction of winding up the opening / closing body 4 and in the direction of unwinding (unwinding) the opening / closing body 4.

[0010] The opening / closing body 4 is configured to include an opening / closing body main body 4A with one end (upper end) located on the storage section side and connected to the winding body 20, for example, via a hanging point not shown in the figure, and an other end component member 4B provided at the other end (lower end) of the opening / closing body main body 4A. The opening / closing body 4 is called, for example, a shutter curtain. The opening / closing body main body 4A is called, for example, a slat curtain. The other end component 4B is called, for example, a seat plate or a water drain.

[0011] The opening / closing body main body 4A is formed by connecting a plurality of slats 41, 41 . Each slat 41 is provided with a connecting means formed of a long, elongated member, for example made of metal, that is long in one direction, i.e., along the left and right width direction W (see Figure 1) of the opening 13 of the architectural structure in which the opening / closing device 1 is installed, and that is continuous along a pair of long side edges. That is, each slat 41 is formed in a shape that includes a slat panel portion 42 that forms a slat surface that is slightly curved along the short side direction (opening / closing direction V (see Figure 1)), as shown in Figure 2, and connecting means that are provided to extend from both ends of the slat panel portion 42 in the short side direction. The connection between the slats 41 is achieved by connecting the connection means of one slat 41 to the connection means of the other slat 41 to be connected. The connecting means is constituted by curled portions 43, 43 provided along one long side edge and the other long side edge of each slat 41 and formed into a shape that allows them to engage with each other.

[0012] After engaging one longitudinal end of one curled portion 43 of one slat 41 to be connected with the other longitudinal end of the other curled portion 43 of the other slat 41, one or both slats 41 are moved laterally along the longitudinal direction so that the longitudinal ends and the longitudinal ends of both slats 41, 41 coincide with each other, thereby engaging one curled portion 43 of one slat 41 with the other curled portion 43 of the other slat 41 across the entire longitudinal width of the slat 41. In this way, one slat 41 and the other slat 41 are connected to each other in a bendable manner, with the curled portions 43, 43 acting as joints.

[0013] As described above, the opening / closing body main body 4A is configured with a plurality of slats 41, 41... in which adjacent slats 41 and the other slats 41 are connected by curled portions 43, 43, and the opening / closing body 4 is configured by providing the other end component 4B at the other end (lower end) of the opening / closing body main body 4A. The left and right end portions 40, 40 sides in the width direction W of each of the plurality of slats 41, 41 . . . that constitute the opening / closing body main body 4A are configured to fit into the guide grooves 5a, 5a of the left and right guide rails 5, 5.

[0014] The other end component 4B, like the slat 41, is formed of a long, elongated member made of, for example, metal that is long along the width direction W (see Figure 1) of the opening 13 of the architectural structure in which the opening / closing device 1 is installed, and its cross-sectional shape perpendicular to the longitudinal direction is formed, for example, in an inverted T shape. That is, the other end component 4B is formed from an elongated member that is long in the width direction W of the opening 13, and has a vertical portion 4a that forms the vertical part of the inverted T-shaped cross section, and a horizontal portion 4b that forms the horizontal part of the inverted T-shaped cross section. A connecting means such as a curled portion (not shown) formed along the long side of the vertical portion 4a of the other end component 4B is connected to the curled portion 43 of the slat 41 located at the other end of the opening / closing body main body 4A, with the longitudinal center position of the other end component 4B and the longitudinal center position of the slat 41 aligned. Then, the lower surface of the horizontal portion 4b of the other end component 4B rests on a seating surface such as a floor surface below the opening 13, whereby the opening 13 is closed by the opening / closing body 4. Furthermore, for example, the left and right end portions 40, 40 sides in the width direction W of the vertical portion 4a and horizontal portion 4b of the other end component 4B, or the left and right end portions 40, 40 sides in the width direction W of at least one of the vertical portion 4a and horizontal portion 4b of the other end component 4B, are configured to fit into the guide grooves 5a, 5a of the left and right guide rails 5, 5. In addition, the left and right ends 40, 40 of the vertical portion 4a and horizontal portion 4b of the other end component 4B in the width direction W may be configured so as not to enter the guide grooves 5a, 5a of the left and right guide rails 5, 5.

[0015] The hanging point (not shown) is a connecting plate intermittently provided along the long side of the slat 41 (topmost slat) located at one end of the opening / closing body main body 4A, and is connected to the winding body 20 via an outlet hole (not shown) of the opening / closing body 4 in the case 2 fixed to the main body 14 located above the opening 13 of the building structure.

[0016] The case 2 houses the opening / closing mechanism 3 and the opening / closing body 4, and is a box-shaped body having a cross-sectional shape perpendicular to the longitudinal direction, for example, a rectangular shape, configured to form a storage space for the opening / closing mechanism 3 and the opening / closing body 4. The case 2 is fixed to a body 14 serving as an attachment part located above the opening 13 so that the positions of both longitudinal ends correspond to the upper end positions of the guide rails 5, 5 provided at both ends of the left and right width directions W of the opening 13. The skeleton 14 of the building structure is a steel skeleton made of H-shaped steel or the like, a concrete skeleton, a reinforced concrete skeleton, a wooden skeleton, or the like.

[0017] The guide rails 5, 5 are arranged on both left and right widthwise ends of the opening / closing body 4 that opens and closes the opening 13 formed in the architectural structure, and are provided on the left and right sides of the opening 13 to guide the left and right widthwise end portions 40, 40 of the opening / closing body 4 along the opening / closing direction V of the opening / closing body 4 (the up and down direction of the opening 13). That is, the left and right widthwise end portions 40, 40 of the opening / closing body 4 are inserted into the guide grooves 5a, 5a of the guide rails 5, 5 arranged on the left and right sides of the opening 13, and when the opening / closing body 4 is opened or closed, the left and right widthwise end portions 40, 40 of the opening / closing body 4 are guided in the opening / closing direction V within the guide grooves 5a, 5a of the left and right guide rails 5, 5. In other words, the guide rails 5, 5 are guide means that are arranged on both left and right widthwise ends of the opening / closing body 4 that opens and closes the opening 13 formed in the architectural structure, and have guide grooves 5a that guide the left and right widthwise ends 40, 40 of the opening / closing body 4 along the opening / closing direction V of the opening / closing body 4.

[0018] The opening / closing body 4 of the opening / closing device 1 configured as described above is wound onto the winding body 20 to open the opening 13 of the building structure, and the opening / closing body 4 is unwound (rolled out) from the winding body 20 to close the opening 13.

[0019] As shown in Figures 1 to 8, in the opening and closing device 1 of embodiment 1, locking means 6 are provided in the guide grooves 5a of the left and right guide rails 5, 5, and locking means 7 are provided on the left and right widthwise ends 40, 40 of the opening and closing body 4 to lock onto the locking means 6 and prevent the widthwise ends 40 of the opening and closing body 4 from slipping out of the guide grooves 5a.

[0020] For example, as shown in Figures 5 to 8, the locking means 6 is formed along a plane perpendicular to the front-to-back direction of the opening 13 (in other words, along the surface of the opening / closing body 4 closing the opening 13) and on a plane parallel to the plane perpendicular to the front-to-back direction of the opening 13, and is equipped with a vertical surface 6A that extends continuously in the opening / closing direction V of the opening / closing body 4 (a direction perpendicular to the plane of the paper in Figure 8(b)), and a locking surface 6B that extends from one vertical edge of the vertical surface 6A located on the bottom side of the guide groove 5a and is formed by a vertical surface perpendicular to the vertical surface 6A, and extends continuously in the opening / closing direction V of the opening / closing body 4, and the corner of the boundary between the vertical surface 6A and the locking surface 6B is formed as an locking angle 6C that extends continuously in the opening / closing direction V of the opening / closing body 4.

[0021] For example, as shown in Figures 2 to 4, the engaging means 7 is composed of a plate material such as a steel plate having a thickness of approximately several mm, and includes an attachment plate portion 7X that functions as an attachment portion attached to the attachment surface 42a of the widthwise end portion 40 of the opening / closing body 4, and an engaging plate portion 7Y that extends widthwise outward beyond the widthwise end edge 41s of the opening / closing body 4 and functions as an engaging portion that can be engaged with the engaging means 6. That is, the engaging means 7 is configured such that the mounting surface 7E formed on the mounting plate portion 7X at one end side is attached to the mounting surface 42a of the widthwise end portion 40 of the opening / closing body 4 by welding or the like, and the other end side extending and protruding outward in the widthwise direction beyond the widthwise end edge 41s of the opening / closing body 4 functions as an engaging plate portion 7Y that engages with the engaging means 6 (see Figure 2). The engaging plate portion 7Y has an engaging surface 7A, the plate surface of which is continuous with the mounting surface 7E and can come into contact with the engaging angle 6C (see Figure 8(b)) of the engaging means 6, and the engaging surface 7A is configured to have an engaging recess 7a (see Figures 4(a) and 8(b)) which can engage with the engaging angle 6C and engaging surface 6B of the engaging means 6.

[0022] That is, the engaging means 7 is formed on an attachment plate portion 7X having an attachment surface 7E attached at one end to the widthwise end portion 40 of the opening / closing body 4, and on the other end extending from the attachment surface 7E, it is configured to have an engaging plate portion 7Y having an engaging surface 7A that can come into contact with the engaging angle 6C of the engaging means 6 and an engaging recess 7a that can engage with the engaging angle 6C and engaging surface 6B of the engaging means 6.

[0023] The engaging means 7 is formed by bending the other longitudinal end of a rectangular steel plate, for example, so that the angle θ (see Figure 4(c)) between a reference plane 7m (described later) on the mounting surface 7E, which is the plate surface at one longitudinal end of the steel plate, and an engaging surface 7A, which extends continuously from the reference plane 7m and is the plate surface at the other longitudinal end of the steel plate, is, for example, approximately 135°±10°.

[0024] The engaging means 7 is provided, for example, on the end 40, 40... sides of all slats 41, 41... constituting the opening / closing body main body 4A and on the end 40 side of the other end component member 4B, which are configured to fit into the guide grooves 5a, 5a of the left and right guide rails 5, 5, or on the end 40 side of any of the slats 41, 41... constituting the opening / closing body main body 4A and the other end component member 4B.

[0025] In the first embodiment, as shown in, for example, FIGS. 4 and 8(a), the locked recess 7a is configured as a recess having a triangular cross section provided on the locked surface 7A. That is, as shown in Figure 4, the engaging recess 7a is provided on the engaging surface 7A at the tip end side in the extension direction of the engaging surface 7A extending from the mounting surface 7E of the engaging means 7, and as shown in Figure 3(b), it is formed by a recess with a triangular cross section that continues along the opening and closing direction V of the opening and closing body 4. The locked means 7 having the locked recess 7a may be formed by press molding the locked surface 7A using a press die, or by cutting or other methods.

[0026] The mounting surface 42a at the width direction end 40 of the opening / closing body 4 is formed by one plate surface of a slat face plate portion 42 at the left and right ends of, for example, a slat 41 that constitutes the opening / closing body 4. As shown in Figure 3(b), if the lines indicating both plate surfaces of the plates constituting the slat panel portion 42 are each considered to be part of a concentric circle, and the plate surface closer to the center of the concentric circle is defined as the inner curved surface 42i, and the plate surface farther from the center of the concentric circle is defined as the outer curved surface 42f, the mounting surface 42a of the widthwise end 40 of the opening / closing body 4 is formed by the inner curved surface 42i of the slat panel portion 42. That is, the mounting surface 42a of the slat face plate portion 42 to which the mounting plate portion 7X serving as the mounting portion of the locked means 7 is attached by welding is formed into a curved surface that curves along the opening / closing direction V of the opening / closing body 4.

[0027] On the other hand, the mounting surface 7E of the mounting plate portion 7X of the engaging means 7, which is attached to the curved surface (inner curved surface 42i of the slat panel portion 42) that forms the mounting surface 42a, is formed non-planar and corresponds to the curved surface that forms the mounting surface 42a. The mounting surface 7E is formed in a non-planar shape corresponding to the curved surface that forms the mounting surface 42a, specifically, in a pseudo-curved surface 7G that corresponds to the curved surface that forms the mounting surface 42a, along the curved surface that forms the mounting surface 42a. More specifically, the pseudo-curved surface 7G that forms the mounting surface 7E is a pseudo-curved surface that has a reference plane 7m extending along the opening / closing direction V, and end side planes 7e, 7e that extend from both ends of the reference plane 7m in the opening / closing direction V in a direction that intersects with the reference plane 7m and away from each other, as shown in Figure 3(b). In other words, the mounting surface 7E formed by the pseudo-curved surface 7G is formed as a bent surface composed of multiple planes 7m, 7e, 7e so as to approximate the curved surface forming the mounting surface 42a (the inner curved surface 42i of the slat panel portion 42).

[0028] As shown in Figure 3, the engaging means 7 and the slat 41 of the opening / closing body 4 are joined by an upper welded joint wa, where the contact portion between the upper edge of the mounting surface 7E of the engaging means 7 in the opening / closing direction V and the mounting surface 42a is welded, and a lower welded joint wb, where the contact portion between the lower edge of the mounting surface 7E of the engaging means 7 in the opening / closing direction V and the mounting surface 42a is welded. In the joining structure between the locked means 7 and the slat 41, the flat surfaces 7e, 7e at the end of the mounting surface 7E of the locked means 7 and the mounting surface 42a of the slat face plate portion 42 are in close proximity to each other. Therefore, when a force from the locked means 7 is applied to the slat face plate portion 42, the slat face plate portion 42 receives the force on the surfaces adjacent to the end side flat surfaces 7e, 7e. Therefore, compared to the conventional configuration shown in Figure 11, in which the mounting surface 70m of the engaging means 70 is formed as a single plane and the force from the engaging means 70 is received at the line contact portion between the edge of the mounting surface 70m and the mounting surface 42a, localized force is less likely to be applied to the slat panel portion 42, making the slat panel portion 42 less likely to deform, making it less likely that the engaging means 7 will come off the engaging means 6 of the guide rail 5 and the widthwise end portion 40 of the opening / closing body 4 will come off the guide rail 5. In other words, according to embodiment 1, deformation of the widthwise end 40 of the opening / closing body 4, which is configured by attaching the engaging means 7 to the mounting surface 42a of the widthwise end 40 of the opening / closing body 4, can be suppressed, and an opening / closing device 1 can be provided that has an improved effect of preventing the widthwise end 40 of the opening / closing body 4 from coming off the guide rail 5.

[0029] In addition, in the case of an engaging means 70 in which the mounting surface 70m is configured as a single plane, as in the conventional configuration shown in Figure 11, the slat panel portion 42 can be made less likely to deform by configuring the width L of the mounting surface 70m of the mounting portion 70X in the opening / closing direction V to be longer than the width L1 of the engaging plate portion 70Y in the opening / closing direction V, as in the engaging means 70Z shown in Figure 10, for example. That is, even if the mounting surface 70m is configured as a single plane as shown in Figure 10, if the width L of the mounting surface 70m of the mounting portion 70X along the opening / closing direction V is made longer than the width L of the mounting surface 70m of the engaging means 70 shown in Figure 11 along the opening / closing direction V, the slat panel portion 42 will be less likely to deform than the engaging means 70 shown in Figure 11. In other words, even if the engaging means has an attachment surface consisting of a single plane, if the width L of the attachment surface 70m along the opening / closing direction V, i.e., the attachment width L of the engaging means 70Z, which is the distance between the upper welded joint wa and the lower welded joint wb, is set long, as in the engaging means 70Z shown in Figure 10, the area of ​​the slat panel portion 42 between the welded joint wa and the welded joint wb increases, making the slat panel portion 42 less likely to deform than when the width L (= attachment width L) of the attachment surface 70m is short, as in the conventional configuration shown in Figure 11.

[0030] However, in the case of a locked means having a mounting surface formed by a single plane, if the width L of the mounting surface 70m along the opening / closing direction V is increased as in the case of the locked means 70Z shown in Fig. 10, the position of the mounting surface 70m will move in a direction approaching the center of the above-mentioned concentric circle (in a direction away from the slat face plate portion 42 to the left side of the paper in Fig. 10(b)), and the length D of the locked plate portion 70Y, which functions as the locked portion, that can be locked with respect to the locking means 6 will be shortened by the amount of this movement. If this locking length D is shortened, the locked plate portion 70Y of the locked means 70Z will be more likely to come off the locking means 6 of the guide rail 5, and there is a risk that the wind resistance based on the engagement between the locked plate portion 70Y and the locking means 6 will not be fully exhibited. On the other hand, according to embodiment 1, even if the width L of the mounting surface 7E along the opening / closing direction V is increased, the mounting surface 7E is configured to have end side flat surfaces 7e, 7e, so that the amount of movement of the position of the mounting surface 70m in the direction approaching the center of the above-mentioned concentric circle that occurs when the width L of the mounting surface 70m along the opening / closing direction V is increased, as in the case of the engaging means 70Z shown in Figure 10, can be reduced, and the engaging length D of the engaging plate portion 7Y relative to the engaging means 6 (i.e., the shortest distance between the tip of the engaging surface 7A and the outer curved surface 42f of the slat panel portion 42) is prevented from becoming shorter. In other words, the engaging means 7 of embodiment 1 is configured so that the mounting surface 7E has end side planes 7e, 7e on both ends of the reference plane 7m in the opening / closing direction V. Therefore, compared to a configuration in which the entire surface is formed into a single plane, such as the mounting surface 70m of the engaging means 70Z shown in Figure 10, if the size and shape of the engaging plate portions 7Y, 70Y are the same, the engaging length D of the engaging plate portion 7Y with respect to the engaging means 6 can be made longer, making it less likely that the engaging plate portion 7Y will come off the engaging means 6. Therefore, according to the locked means 7 of the first embodiment, wind resistance based on the locking between the locked surface 7A and the locking means 6 can be fully exhibited.

[0031] Furthermore, as shown in Figure 3(a), the engaging means 7 of embodiment 1 is configured so that the width L along the opening / closing direction V of the mounting surface 7E of the mounting plate portion 7X is longer than the width L1 along the opening / closing direction V of the engaging plate portion 7Y. This allows the attachment width L (=width L) of the locked means 7, which is the distance between the welded joints wa and wb, to be increased, thereby improving the effect of suppressing deformation of the slat face plate portion 42.

[0032] That is, according to embodiment 1, the mounting surface 7E of the engaging means 7 attached to the curved surface forming the mounting surface 42a is configured to be a pseudo-curved surface 7G corresponding to the curved surface forming the mounting surface 42a along the curved surface forming the mounting surface 42a, that is, a pseudo-curved surface 7G having a reference plane 7m extending along the opening / closing direction V and end side planes 7e, 7e extending from both ends of the reference plane 7m in the opening / closing direction V in a direction intersecting the reference plane 7m and away from each other.Therefore, when a force from the engaging means 7 is applied to the slat panel portion 42, the slat panel portion 42 is configured to receive the force at the surfaces close to the end side planes 7e, 7e. In other words, according to embodiment 1, the force from the engaging means 7 can be received by the surface of the slat panel portion 42 that is close to each end side plane 7e, 7e. Therefore, compared to the conventional configuration shown in Figure 11, in which the force from the engaging means 70 is received at the line contact portion between the mounting surface 70m and the slat panel portion 42, localized force is less likely to be applied to the slat panel portion 42, and the slat panel portion 42 is less likely to deform. Therefore, according to the opening and closing device 1 of embodiment 1, deformation of the widthwise end 40 of the opening and closing body 4, which is configured by attaching the engaging means 7 to the mounting surface 42a of the widthwise end 40 of the opening and closing body 4, can be suppressed, and the effect of preventing the widthwise end 40 of the opening and closing body 4 from coming off the guide rail 5 can be improved. Furthermore, according to embodiment 1, the engaging means 7 is provided with an attachment surface 7E having the end side flat surfaces 7e, 7e described above, so even if the width L of the attachment surface 7E along the opening / closing direction V is increased, it is possible to prevent the engaging length D of the engaging plate portion 7Y relative to the engaging means 6 from becoming shorter. Therefore, by increasing the width L of the mounting surface 7E along the opening / closing direction V, the effect of suppressing deformation of the widthwise end 40 of the opening / closing body 4 can be improved, and the desired locking length D can be maintained, making it difficult for the locking plate portion 7Y to come off the locking means 6, thereby making it possible to provide an opening / closing device 1 that can improve the effect of preventing the widthwise end 40 of the opening / closing body 4 from coming off the guide rail 5.

[0033] In the opening / closing device 1 of embodiment 1, for example, as shown in Figure 5, when a force is applied to the opening / closing body 4 in the direction of arrow F1 in Figure 6 from a state in which no force is applied to the opening / closing body 4 from the front-to-back directions of the opening 13, the engaging surface 7A of the engaging means 7 and the engaging angle 6C of the engaging means 6 come into contact, and further, the engaging recess 7a of the engaging means 7 engages with the engaging angle 6C and engaging surface 6B of the engaging means 6, thereby improving the effect of preventing the widthwise end 40 of the opening / closing body 4 from coming off the guide rail 5. Similarly, when a force is applied in the direction of arrow F2 in Figure 7 (a force in the opposite direction to F1), the engaging surface 7A of the engaging means 7 and the engaging angle 6C of the engaging means 6 come into contact, and further, the engaging recess 7a of the engaging means 7 engages with the engaging angle 6C and engaging surface 6B of the engaging means 6, thereby improving the effect of preventing the widthwise end 40 of the opening / closing body 4 from coming off the guide rail 5. Furthermore, as shown in Figure 5, when no force is applied to the opening / closing body 4 from the front to back direction of the opening 13, the engaging surface 7A and the engaging means 6 do not come into contact, and the opening / closing body 4 is configured to open and close smoothly. 5 to 7 are cross-sectional views perpendicular to the extension direction of the guide rail 5 in FIG.

[0034] Next, a specific example of the guide rail 5 will be described with reference to FIGS. As shown in Figure 1, the guide rail 5 is attached to a frame 14 made of, for example, H-shaped steel via a reinforcing member 8 and an attachment member 9 that reinforce the guide rail 5, so that the guide rail 5 is installed in the building structure while being reinforced by the reinforcing member 8, thereby ensuring strength. The guide rail 5, the reinforcing member 8, and the mounting member 9 will be described in detail below.

[0035] As shown in FIG. 5, the guide rail 5 is configured to include a guide rail main body 5A and a decorative portion 5B. As shown in Figure 5, the guide rail main body 5A is composed of a hollow, elongated object that has a roughly U-shaped cross section with a groove entrance 5b of a predetermined width and that has a guide groove 5a that continues in one direction (a direction perpendicular to the paper surface of Figure 5) formed therein. The decorative portion 5B is composed of a member that covers the inner surface of the guide groove 5a of the guide rail main body 5A and the surface of the side wall 50 so that the inner surface of the guide groove 5a of the guide rail main body 5A and the side wall 50 on the groove entrance 5b side of the guide rail main body 5A are not visible when the guide rail 5 is viewed from the outside.

[0036] The guide rail main body 5A is composed of a long, hollow metal column-like object with a concave cross section, in which a guide groove 5a having a groove entrance 5b for inserting the left widthwise end portion 40 of the opening / closing body 4 or the right widthwise end portion 40 of the opening / closing body 4 is formed so as to continue in the opening / closing direction V of the opening / closing body 4 (vertical direction (direction perpendicular to the plane of the paper in Figure 5)). The guide rail main body 5A is configured by combining two members, that is, a first rail member 51 and a second rail member 52, for example. The first rail material 51 and the second rail material 52 are formed by bending or otherwise shaping a metal plate (e.g., a flat metal plate) made of steel, stainless steel, aluminum, or the like, which is long in one direction and has a predetermined width in a direction perpendicular to that direction and has a thickness of approximately several mm.

[0037] The first rail material 51 has a guide groove one side wall portion 53 that forms the wall on one side of the guide groove 5a (for example, the rear side of the opening 13), and a one side wall portion 54 that forms one side wall of the side wall 50. The guide groove one side wall portion 53 includes a groove entrance side wall portion 55 located on the groove entrance 5b side, a bottom side wall portion 56 located on the bottom side of the guide groove 5a, and a locking wall portion 57 formed by a step wall portion that forms the boundary between the groove entrance side wall portion 55 and the bottom side wall portion 56. In other words, the first rail material 51 is a long member that extends continuously in the opening and closing direction (up and down direction) of the opening and closing body 4, and is configured to include a side wall portion 54 that extends a predetermined length from one end located on one side (for example, the rear side of the opening 13) to the other side, a groove entrance side wall portion 55 that extends a predetermined length from the extended end of the side wall portion 54 in the width direction of the opening and closing body 4, a locking wall portion 57 that extends a predetermined length from the extended end of the groove entrance side wall portion 55 to one side, and a bottom side wall portion 56 that extends a predetermined length from the extended end of the locking wall portion 57 in the width direction of the opening and closing body 4 and in a direction away from the side wall portion 54. Furthermore, one side edge of the groove entrance 5b of the guide groove 5a is formed by the boundary between the one side wall portion 54 and the groove entrance side wall portion 55, and for example, the plate surface of the one side wall portion 54 and the plate surface of the groove entrance side wall portion 55 are formed so as to be perpendicular to each other via the boundary between the one side wall portion 54 and the groove entrance side wall portion 55. Furthermore, for example, the plate surface of the groove inlet side wall portion 55 and the plate surface of the locking wall portion 57 are formed so as to be perpendicular to each other via the boundary portion between the groove inlet side wall portion 55 and the locking wall portion 57 . Furthermore, for example, the plate surface of the locking wall portion 57 and the plate surface of the bottom side wall portion 56 are formed so as to be perpendicular to each other via the boundary portion between the locking wall portion 57 and the bottom side wall portion 56.

[0038] The second rail material 52 includes a guide groove other side wall portion 63 that forms the side wall on the other side of the guide groove 5a (for example, the front side of the opening 13), an other side wall portion 64 that forms the side wall on the other side of the side wall 50, a guide groove bottom surface portion 65 that forms the bottom surface of the guide groove 5a, a bottom side wall portion 66 located on the bottom side of the guide groove 5a, and a locking wall portion 67. In other words, the second rail material 52 is an elongated member that extends continuously in the opening / closing direction (up and down direction) of the opening / closing body 4, and is configured to include a second side wall portion 64 that extends a predetermined length to one side from one end located on the other side (for example, the front side of the opening 13), a guide groove second side wall portion 63 that extends a predetermined length from the extended end of the second side wall portion 64 in the width direction of the opening / closing body 4, a guide groove bottom surface portion 65 that extends a predetermined length to one side from the extended end of the guide groove second side wall portion 63, a bottom side wall portion 66 that extends a predetermined length from the extended end of the guide groove bottom surface portion 65 in the width direction of the opening / closing body 4 and in a direction approaching the second side wall portion 64, and a locking wall portion 67 that extends a predetermined length to the other side from the extended end of the bottom side wall portion 66. The end of the locking wall portion 67 in the extension direction is configured to function as the locking means 6 described above. Furthermore, the boundary between the other side wall portion 64 and the other side wall portion 63 of the guide groove forms the other side edge portion of the groove entrance 5b of the guide groove 5a, and for example, the plate surface of the other side wall portion 64 and the plate surface of the other side wall portion 63 of the guide groove are formed so as to be perpendicular to each other via the boundary between the other side wall portion 64 and the other side wall portion 63 of the guide groove. Furthermore, for example, the plate surface of the guide groove other side wall portion 63 and the plate surface of the guide groove bottom surface portion 65 are formed so as to be perpendicular to each other via the boundary between the guide groove other side wall portion 63 and the guide groove bottom surface portion 65. Also, for example, the plate surface of the guide groove bottom surface portion 65 and the plate surface of the bottom side wall portion 66 are formed so as to be perpendicular to each other via the boundary portion between the guide groove bottom surface portion 65 and the bottom side wall portion 66 . Also, for example, the plate surface of the bottom wall portion 66 and the plate surface of the locking wall portion 67 are formed so as to be perpendicular to each other via the boundary between the bottom wall portion 66 and the locking wall portion 67 .

[0039] The decorative portion 5B includes an inner decorative plate 71, an other-side decorative plate 72, and a one-side decorative plate 73. The inner decorative panel 71, the other side decorative panel 72, and the one side decorative panel 73 are formed by bending or otherwise shaping a metal plate (e.g., a flat metal plate) such as steel, stainless steel, aluminum, etc., which is long in one direction and has a predetermined width in a direction perpendicular to that direction and is several millimeters thick. Furthermore, the metal plates forming the inner decorative panel 71, the other side decorative panel 72, and the one side decorative panel 73 may be thinner than the metal plates forming the first rail material 51 and the second rail material 52, and may have decorative treatments such as coloring, patterns, gloss or matte finishes applied to the surface.

[0040] The inner decorative panel 71 is attached to the inner surface of the other side wall portion 63 of the guide groove of the second rail material 52 and the inner surface of the bottom surface 65 of the guide groove, and is a decorative panel that prevents the inner surface of the other side wall portion 63 of the guide groove of the second rail material 52 and the inner surface of the bottom surface 65 of the guide groove from being seen when the inside of the guide groove 5a is viewed through the groove entrance 5b of the guide groove 5a of the guide rail 5. That is, the inner decorative plate 71 includes a guide groove other side cover portion 74 that covers the inner surface of the guide groove other side wall portion 63 and a guide groove bottom side cover portion 75 that covers the inner surface of the guide groove bottom portion 65. For example, the plate surface of the guide groove other side cover portion 74 and the plate surface of the guide groove bottom side cover portion 75 are formed so as to be perpendicular to each other via the boundary between the guide groove other side cover portion 74 and the guide groove bottom side cover portion 75. Furthermore, when the inside of the guide groove 5a is viewed through the groove entrance 5b of the guide groove 5a of the guide rail 5, one side portion of the inner surface of the guide groove bottom portion 65 is blocked by the groove entrance side wall portion 55 of the first rail material 51 and the engagement wall portion 67 of the second rail material 52, creating a blind spot, so on the inner surface of the guide groove bottom portion 65, the portion between one end of the guide groove bottom side covering portion 75 and the bottom side wall portion 66 is an uncovered portion.

[0041] The other side decorative panel 72 is attached to the surface of the other side wall portion 64 of the second rail material 52 and the inner surface of the groove entrance 5b side of the guide groove other side wall portion 63, and is a decorative panel to prevent the surface of the other side wall portion 64 of the second rail material 52 and the inner surface of the groove entrance 5b side of the guide groove other side wall portion 63 from being seen visually. The other side decorative panel 72 includes an other side wall covering portion 76 that covers the surface of the other side wall portion 64 of the second rail material 52, and an other side wall surface covering portion 77 that covers the inner surface of the opening side of the guide groove other side wall portion 63. For example, the plate surface of the other side wall covering portion 76 and the plate surface of the other side wall surface covering portion 77 are formed so as to be perpendicular to each other via the boundary between the other side wall covering portion 76 and the other side wall surface covering portion 77 .

[0042] The one-side decorative panel 73 is attached to the surface of one side wall portion 54 of the first rail material 51 and the inner surface of the groove entrance side wall portion 55, and is a decorative panel designed to prevent the surface of one side wall portion 54 of the first rail material 51 and the inner surface of the groove entrance side wall portion 55 from being seen visually. The one-side decorative plate 73 includes a one-side wall covering portion 78 that covers the surface of the one-side wall portion 54 of the first rail member 51, and a guide groove inlet one-side covering portion 79 that covers the inner surface of the groove inlet side wall portion 55. For example, the plate surface of the one side wall covering portion 78 and the plate surface of the guide groove inlet one side covering portion 79 are formed so as to be perpendicular to each other via the boundary between the one side wall covering portion 78 and the guide groove inlet one side covering portion 79.

[0043] The reinforcing member 8 may be, for example, a metal plate (e.g., a flat metal plate) made of steel, stainless steel, aluminum, or the like, with a roughly rectangular surface and a thickness of a few mm, and a notched recess formed by cutting the metal plate into a roughly rectangular shape on one side of the square, or may be formed by die-casting such as aluminum die-casting. That is, the reinforcing member 8 is composed of, for example, a flat plate member having a peripheral portion 80 formed in a shape that surrounds the outer peripheral surface 5f of the guide groove 5a into which the widthwise end portion 40 of the opening / closing body 4 is inserted. For example, when the portion forming the guide groove 5a of the guide rail 5 is inserted into the notch recess formed in the reinforcing member 8, the shape of the peripheral portion 80 of the notch recess of the reinforcing member 8 and the shape of the outer surface 5f of the guide groove 5a in the cross section of the guide groove 5a of the guide rail 5 are formed to approximately match each other. Furthermore, it is preferable that the thickness of the reinforcing member 8 be thicker than the thickness of the first rail material 51 and the second rail material 52, and it is even more preferable from the standpoint of strength that the thickness be thicker than the sum of the thickness of the first rail material 51 and the thickness of the second rail material 52.

[0044] The peripheral portion 80 of the reinforcing member 8 is composed of edge portions that face each of the plate surfaces that form the outer peripheral surface 5f of the guide groove 5a of the guide rail main body 5A, which is formed by combining the first rail material 51 and the second rail material 52, i.e., the plate surface that forms one side of the groove entrance side wall portion 55 of the first rail material 51, the plate surface that forms the groove entrance 5b side of the guide groove 5a of the engaging wall portion 57, the plate surface that forms one side of the bottom side wall portion 56, the plate surface opposite the groove entrance 5b at the guide groove bottom surface portion 65 of the second rail material 52, and the plate surface that forms the other side of the guide groove other side wall portion 63. In other words, the peripheral portion 80 of the reinforcing member 8 is composed of a groove entrance one side edge portion 81 facing the plate surface on one side of the groove entrance side wall portion 55 of the first rail material 51, a locking wall side edge portion 82 facing the plate surface on the groove entrance 5b side of the locking wall portion 57, a one bottom side side wall side edge portion 83 facing the plate surface on one side of the bottom side wall portion 56, a guide groove bottom side edge portion 84 facing the plate surface on the opposite side of the groove entrance 5b at the guide groove bottom surface portion 65 of the second rail material 52, and a other guide groove side wall side edge portion 85 facing the plate surface on the other side of the guide groove other side wall portion 63. The reinforcing member 8 also includes a one-side edge portion 86 extending to one side from one end of the groove entrance one-side edge portion 81 and facing parallel to the one-side wall portion 54, an other-side edge portion 87 extending to the other side from one end of the other guide groove side wall side edge portion 85 and facing parallel to the other side wall portion 64, and an outer edge portion 88 connecting the extended end of the one-side edge portion 86 and the extended end of the other-side edge portion 87 and surrounding the outside of the peripheral portion 80 of the reinforcing member 8. In other words, the reinforcing member 8 is a flat plate member surrounded by a peripheral edge portion 80 surrounding the outer peripheral surface 5f of the guide groove 5a of the guide rail 5, one side edge portion 86, the other side edge portion 87, and an outer edge portion 88.

[0045] The peripheral portion 80 of the reinforcing member 8 is installed so as to surround the outer peripheral surface 5f of the guide groove 5a of the guide rail 5, and at least a portion of the peripheral portion 80 side of the reinforcing member 8 and the outer peripheral surface 5f of the guide groove 5a are connected, for example, by welding.

[0046] As shown in FIG. 1, a plurality of reinforcing members 8, 8 . . . are connected to the guide rail 5 at intervals in the vertical direction (longitudinal direction, extension direction) of the guide rail 5, that is, along the opening / closing direction V of the opening / closing body 4.

[0047] The mounting member 9 is formed by bending a metal plate (e.g., a flat metal plate) made of steel, stainless steel, aluminum, or the like having a thickness of a few millimeters, or by processing an angle bar, or by die-casting such as aluminum die-casting. As shown in FIG. 1, the mounting member 9 includes a reinforcing member connecting portion 91 that is connected to the reinforcing member 8 by welding or the like, and a frame connecting portion 92 that is connected to the frame 14. The body connecting portion 92 is formed of, for example, a rectangular flat plate portion. The reinforcing member connecting portion 91 extends from one long side edge of the rectangle of the body connecting portion 92 and is formed by, for example, a flat plate portion having a plate surface perpendicular to the plate surface of the body connecting portion 92 .

[0048] For example, by previously attaching mounting members 9, 9... by welding or the like to the attachment points of the multiple reinforcing members 8, 8... connected to the guide rail 5 to the main body 14, and then attaching the multiple reinforcing members 8, 8... connected to the guide rail 5 to the corresponding mounting members 9, 9... by welding or the like, the guide rail 5 can be attached to the main body 14 in a state reinforced by the multiple reinforcing members 8, 8..., thereby improving the strength of the guide rail 5. Furthermore, if multiple reinforcing members 8, 8... connected to the guide rail 5 are attached to the main body 14 via mounting members 9, 9..., even if the vertical accuracy of the mounting surface of the main body 14 is slightly off, a guide rail 5 with high vertical accuracy can be achieved by adjusting the mounting position of each reinforcing member 8, 8... connected to the guide rail 5 relative to the mounting members 9, 9...

[0049] By using the reinforcing members 8, 8 . . . , it is possible to reduce the weight of the guide rail 5, improve workability and productivity, and also ensure the strength of the guide rail 5. Furthermore, it has become possible to provide a guide rail 5 that is lightweight, has improved workability and manufacturability, and also ensures strength. In particular, in the opening and closing device 1 according to the first embodiment that is provided with the locking means 6 and the locked means 7 described above, the guide rail 5 that requires strength can be easily constructed.

[0050] Embodiment 2 In embodiment 1, the mounting surface 7E of the engaging means 7 is formed as a pseudo-curved surface 7G, which is a non-planar surface corresponding to the curved surface that forms the mounting surface 42a, along the curved surface that forms the mounting surface 42a. In embodiment 2, as shown in Figure 9, the mounting surface 7E of the engaging means 7 is formed as a true curved surface 7R, which is a non-planar surface corresponding to the curved surface that forms the mounting surface 42a (inner curved surface 42i). That is, like the engaging means 7 of embodiment 1, the engaging means 7 of embodiment 2 is also composed of a plate material such as a steel plate having a thickness of several millimeters, and includes an attachment plate portion 7X that functions as an attachment portion attached to the attachment surface 42a (inner curved surface 42i) of the widthwise end portion 40 of the opening / closing body 4, and an engaging plate portion 7Y that extends widthwise outward beyond the widthwise end edge 41s of the opening / closing body 4 and functions as an engaging portion that can be engaged with the engaging means 6. However, it differs from the engaging means 7 of embodiment 1 in that the attachment surface 7E is formed into a true curved surface 7R. As shown in Figure 9(c), the engaging means 7 and the slat 41 of the opening / closing body 4 are joined by an upper welded joint wa, where the contact portion between the upper edge of the mounting surface 7E of the engaging means 7 in the opening / closing direction V and the mounting surface 42a is welded, and a lower welded joint wb, where the contact portion between the lower edge of the mounting surface 7E of the engaging means 70 in the opening / closing direction V and the mounting surface 42a is welded. In FIG. 9, the same parts as those shown in FIGS. 1 to 8 of the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

[0051] In the joining structure between the engaging means 7 and the slat 41 in the opening and closing device 1 of embodiment 2, as shown in Figure 9(c), the true curved surface 7R forming the mounting surface 7E of the engaging means 7 and the mounting surface 42a of the slat panel portion 42 are in close proximity to or in contact with each other. Therefore, when force from the engaging means 70 is applied to the slat panel portion 42, the force is received by the surface of the slat panel portion 42 that is close to or in contact with the true curved surface 7R that forms the mounting surface 7E, making the slat panel portion 42 less likely to deform compared to the conventional configuration as shown in Figure 11, in which the mounting surface of the engaging means is composed of a single plane. Furthermore, compared to the opening and closing device 1 of the first embodiment, the slat face plate portion 42 is less likely to deform. Therefore, the locked means 70 is less likely to come off the locking means 6 of the guide rail 5 , and the width direction end 40 of the opening / closing body 4 is less likely to come off the guide rail 5 . In other words, according to embodiment 2, deformation of the widthwise end 40 of the opening / closing body 4, which is configured by attaching the engaging means 7 to the mounting surface 42a of the widthwise end 40 of the opening / closing body 4, can be suppressed, and an opening / closing device 1 can be provided that has an improved effect of preventing the widthwise end 40 of the opening / closing body 4 from coming off the guide rail 5.

[0052] Furthermore, it is preferable to form the mounting surface 7E as a true curved surface 7R that matches the curved surface (inner curved surface 42i) that forms the mounting surface 42a, that is, to use a fastening means 7 that has a mounting surface 7E formed as a true curved surface 7R that matches the curved surface (inner curved surface 42i) that forms the mounting surface 42a, as this increases the adhesion between the true curved surface 7R of the mounting surface 7E and the mounting surface 42a, thereby further improving the effect of suppressing deformation of the slat panel portion 42.

[0053] Furthermore, as shown in Figure 9, if the engaging means 7 is configured so that the width L in the opening / closing direction V of the mounting surface 7E formed on the true curved surface 7R that matches the curved surface forming the mounting surface 42a is longer than the width L1 in the opening / closing direction V of the engaging plate portion 7Y, this increases the area of ​​the slat panel portion 42 between the upper welded joint wa and the lower welded joint wb, thereby further improving the effect of suppressing deformation of the slat panel portion 42, which is preferable. Furthermore, as in embodiment 1, by increasing the width L of the mounting surface 7E along the opening / closing direction V, the effect of suppressing deformation of the widthwise end portion 40 of the opening / closing body 4 can be improved, and the desired locking length D can be maintained, making it difficult for the locking plate portion 7Y to come off the locking means 6.As a result, it is possible to provide an opening / closing device 1 that can improve the effect of preventing the widthwise end portion 40 of the opening / closing body 4 from coming off the guide rail 5.

[0054] In addition, in embodiments 1 and 2, the configuration in which the mounting surface 7E of the engaging means 7 is formed as a pseudo-curved surface 7G or a true curved surface 7R can be said to be a configuration for increasing the area of ​​the proximity or contact surface between the mounting surface 7E and the mounted surface 42a, in other words, a configuration for improving the adhesion between the mounting surface 7E and the mounted surface 42a.

[0055] Furthermore, in embodiments 1 and 2, it is preferable that the width L of the mounting surface 7E of the engaging means 7 along the opening / closing direction V be longer than the width L of the mounting surface 70m of the engaging means 70 along the opening / closing direction V in the conventional configuration shown in Figure 11, but the width L of the mounting surface 7E of the engaging means 7 along the opening / closing direction V may also be the same length as the width L of the mounting surface 70m of the engaging means 70 along the opening / closing direction V in the conventional configuration shown in Figure 11. In this way, even if the width L of the mounting surface 7E of the engaging means 7 is the same length as the width L along the opening / closing direction V of the mounting surface 70m of the engaging means 70 in the conventional configuration shown in Figure 11, in embodiments 1 and 2, the mounting surface 7E of the engaging means 7 is formed into a pseudo-curved surface 7G or a true curved surface 7R, so the slat panel portion 42 is less likely to deform when the engaging means 7 of embodiments 1 and 2 is used compared to when the engaging means 70 in the conventional configuration shown in Figure 11 is used. That is, in embodiments 1 and 2, regardless of the width length L of the mounting surface 7E of the engaging means 7, the mounting surface 7E of the engaging means 7 is formed into a pseudo-curved surface 7G or a true curved surface 7R, making the slat panel portion 42 less likely to deform compared to when an engaging means is used whose entire mounting surface is formed into a single plane.This makes it possible to suppress deformation of the widthwise end 40 of the opening / closing body 4, which is configured by attaching the engaging means 7 to the mounting surface 42a of the widthwise end 40 of the opening / closing body 4, and improves the effectiveness of preventing the widthwise end 40 of the opening / closing body 4 from coming off the guide rail 5.

[0056] Embodiment 3 In the first embodiment, the mounting surface 7E is formed as a pseudo-curved surface 7G that follows the curved surface that forms the mounting surface 42a, i.e., a pseudo-curved surface 7G that includes a reference plane 7m extending along the opening / closing direction V and end-side planes 7e, 7e that extend from both ends of the reference plane 7m in the opening / closing direction V in a direction that intersects with the reference plane 7m and moves away from each other. This allows the mounting width L of the locking means 7, which is the distance between the welded joint wa and the welded joint wb, to be set long, making it difficult for the slat face plate portion 42 to deform. Furthermore, a sufficient lockable length D of the locking plate portion 7Y relative to the locking means 6 can be maintained, making it difficult for the locking plate portion 7Y to come off the locking means 6. However, in order to achieve the object of making the slat panel portion 42 less likely to deform by setting the mounting width L (= width length L) of the engaging means, which is the distance between the welded joint wa and the welded joint wb, long, as shown in Figure 10, the mounting width L of the engaging means 7 may be set long and the mounting surface 7E may be a flat surface facing the mounting surface 42a.

[0057] That is, compared to the engaging means 70 shown in Figure 11, in which the maximum width L along the opening / closing direction V at the engaging plate portion 70Y and the width L (= mounting width L) along the opening / closing direction V at the mounting surface 70m are set to the same length, it is also possible to use an engaging means 70Z configured so that the width L (= mounting width L) along the opening / closing direction V at the mounting surface 70m is longer than the maximum width L1 along the opening / closing direction V at the engaging plate portion 70Y, as shown in Figure 10.

[0058] According to the engaging means 70Z of embodiment 3, compared to the engaging means 70 shown in Figure 11, in which the maximum width L along the opening / closing direction V of the engaging plate portion 70Y that functions as the engaging portion and the width L (= mounting width L) along the opening / closing direction V at the mounting surface 70m of the mounting portion 70X are set to the same length, the mounting width L (= width L) of the engaging means 70, which is the distance between the welded joint wa and the welded joint wb, can be made longer.Therefore, compared to when the engaging means 70 shown in Figure 11 is used, the effect of suppressing deformation of the slat panel portion 42 is improved, and an opening / closing device 1 can be provided that has an improved effect of preventing the widthwise end portion 40 of the opening / closing body 4 from coming off the guide rail 5.

[0059] Embodiment 4 Configurations for increasing the area of ​​the proximity or contact surface between the mounting surface 7E and the mounted surface 42a, in other words, configurations for improving the adhesion between the mounting surface 7E and the mounted surface 42a, include a configuration in which the mounting surface 7E is formed as a pseudo-curved surface 7G or a true curved surface 7R, as in embodiments 1 and 2, as well as a configuration in which a plate such as a gold side plate (not shown) is provided in the gap between the curved mounted surface 42a and the flat surface of the mounting surface 7E facing the mounted surface 42a.

[0060] For example, in the configuration shown in Figure 3(b), a plate not shown in the figure may be provided to fill the gap G between the reference plane 7m of the mounting surface 7E and the mounted surface 42a, or in the configurations shown in Figures 10(b) and 11(b), a plate not shown in the figure may be provided to fill the gap G between the flat mounting surface 70m and the curved mounted surface 42a. In this case, the plate may be attached in advance to the reference plane 7m of the attachment surface 7E or the attachment surface 70m using an adhesive or the like, or may be attached to the attachment surface 42a. According to embodiment 4, deformation of the widthwise end 40 of the opening / closing body 4, which is configured by attaching the engaging means 7 to the mounting surface 42a of the widthwise end 40 of the opening / closing body 4, can be suppressed, thereby improving the effectiveness of preventing the widthwise end 40 of the opening / closing body 4 from slipping off the guide rail 5.

[0061] In other words, by forming the mounting surface of the engaging means into a non-planar surface corresponding to the curved surface that forms the mounting surface 42a, in order to increase the adhesion between the mounting surface and the mounting surface 42a, it is configured, for example, as follows. The mounting portion of the engaging means is formed by a base plate having a flat surface extending along the opening / closing direction V (for example, the mounting plate portion 7X shown in Figure 3(b) or the mounting portion 70X shown in Figures 10(b) and 11(b)), and a plate having a true curved surface that matches the curved surface that forms the mounting surface 42a along the curved surface that forms the mounting surface 42a and a flat surface that faces the true curved surface (for example, a plate formed with a cross-sectional shape that fills the gap G between the reference plane 7m shown in Figure 3(b) and the mounting surface 42a, or a plate formed with a cross-sectional shape that fills the gap G between the mounting surface 70m and the mounting surface 42a shown in Figures 10(b) and 11(b)).The mounting surface of the mounting portion of the engaging means is formed by the plane of the base plate and the plane of the plate being connected through surface contact. In this way, the adhesion between the mounting surface and the mounted surface 42a can be improved, thereby suppressing deformation of the widthwise end 40 of the opening / closing body 4, which is configured by attaching the engaging means 7 to the mounted surface 42a of the widthwise end 40 of the opening / closing body 4, and improving the effectiveness of preventing the widthwise end 40 of the opening / closing body 4 from coming off the guide rail 5.

[0062] Furthermore, in the first and second embodiments, the locked means 7 is exemplified as having the locked recess 7a on the locked surface 7A, but the locked recess 7a may be omitted.

[0063] In addition, in the above example, the mounting plate portion 7X serving as the mounting portion of the engaging means 7 is welded and attached to the inner curved surface 42i of the slat panel portion 42 serving as the mounting surface 42a of the widthwise end portion 40 of the opening / closing body 4, but the outer curved surface 42f of the slat panel portion 42 may be used as the mounting surface 42a, and the mounting plate portion 7X may be welded and attached to the outer curved surface 42f of the slat panel portion 42 serving as the mounting surface 42a. In this case, for example, the surface opposite the mounting surface 7E of the mounting plate portion 7X of embodiment 1 shown in Figure 3(b) can be formed into a pseudo-curved surface 7G to serve as the mounting surface, and this mounting surface can be welded to the outer curved surface 42f of the slat surface plate portion 42 to be attached, or the true curved surface formed on the surface opposite the mounting surface 7E of the mounting plate portion 7X of embodiment 2 shown in Figure 9(c) can be used as the mounting surface, and this mounting surface can be welded to the outer curved surface 42f of the slat surface plate portion 42 to be attached.

[0064] Furthermore, in each embodiment, examples of non-flat surfaces forming the mounting surface at the mounting portion of the engaging means include a pseudo-curved surface 7G that follows the curved surface that forms the mounting surface 42a and a true curved surface 7R that follows the curved surface that forms the mounting surface 42a, but the non-flat surface that forms the mounting surface at the mounting portion of the engaging means may also be an uneven surface, a stepped surface, etc. that follows the curved surface that forms the mounting surface 42a and corresponds to the curved surface.

[0065] In addition, the locking means 6 may be formed by the corner of a flat plate such as a flat bar provided on one side wall of a guide rail having a U-shaped cross section so as to continue in the opening and closing direction V of the opening and closing body 4.

[0066] The configuration of the opening / closing body (shutter curtain) of the opening / closing device (shutter device) to which the present invention is applicable is not limited to a configuration in which a plurality of so-called slats are arranged in the opening / closing direction, but may also include an opening / closing body formed by one or more pipes, panels, sheet-like objects, or net-like objects arranged in series, or an opening / closing body formed by an appropriate combination of slats, panels, pipes, sheet-like objects, and net-like objects.The present invention can also be applied to so-called overhead type opening / closing bodies. [Explanation of symbols]

[0067] 1 shutter device (opening / closing device), 4 opening / closing body, 5 guide rail, 5a guide groove, 6 Locking means, 7 Locked means, 7A Locked surface, 7E Mounting surface, 7G Pseudo curved surface, 7R true curved surface, 7X mounting plate part (mounting part), 7Y interlocking plate part (interlocking part), 7m reference plane, 7e end side plane, 40 widthwise end of opening / closing body, 41s widthwise edge of the opening / closing body, 42a mounting surface, L width length along the opening / closing direction of the mounting surface, L1: width along the opening and closing direction of the plate to be locked (the part to be locked), V: opening and closing direction of the opening and closing body, W Width direction of the opening / closing body.

Claims

1. an opening / closing body that opens and closes an opening formed in the architectural structure; a guide rail having a guide groove disposed on both left and right widthwise end sides of the opening / closing body and guiding the widthwise end of the opening / closing body along the opening / closing direction of the opening / closing body, The guide rail has a locking means in the guide groove, The left and right widthwise ends of the opening / closing body are provided with locking means that are locked to locking means provided in the guide grooves of the guide rails to prevent the widthwise ends of the opening / closing body from slipping out of the guide grooves, The engaging means includes an attachment plate portion that functions as an attachment portion attached to an attachment surface at the width direction end of the opening / closing body, and an engaging plate portion that extends outward in the width direction from the width direction end edge of the opening / closing body and functions as an engaging portion that can be engaged with the engaging means, The mounting surface of the width direction end of the opening / closing body is a curved surface that curves along the opening / closing direction, the mounting surface of the mounting plate portion of the engaging means attached to the curved surface forming the mounting surface is a pseudo-curved surface that forms a non-flat surface corresponding to the curved surface along the curved surface forming the mounting surface, and the pseudo-curved surface includes a reference plane extending along the opening / closing direction, and end-side planes that extend from both ends of the reference plane in the opening / closing direction in a direction intersecting the reference plane and away from each other; An opening and closing device characterized in that the mounting plate portion of the engaging means is composed of a plate portion having the pseudo-curved surface and a flat surface opposite to the pseudo-curved surface, and the flat surface opposite to the pseudo-curved surface is composed of a surface parallel to the reference plane.

2. The opening and closing device described in claim 1, characterized in that the engaging means is attached to the mounting surface so that a gap is formed between the reference plane and the mounting surface and the planes on each end side are in close proximity to the mounting surface by welding the contact portion between the upper edge of the mounting surface of the engaging means in the opening and closing direction and the contact portion between the lower edge of the mounting surface of the engaging means in the opening and closing direction and the mounting surface.

3. The opening and closing device according to claim 1 or 2, characterized in that the width of the mounting surface of the mounting portion of the engaging means in the opening and closing direction is longer than the width of the engaging portion of the engaging means in the opening and closing direction.

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