Opening / closing device pivot support bracket and opening / closing device

Abstract

To prevent a protruding portion on the driven side of a winding shaft from being exposed.SOLUTION: An opening / closing device pivot support bracket includes a support piece 32b that supports the driven end side of a winding shaft 31 in an opening / closing device 1 by allowing it to pass through and protrude, and a shaft end cover 40 that is fastened to the support piece 32b and covers a protruding portion of the winding shaft 31 from the support piece 32b.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a support bracket for an opening / closing device that supports an end side of a winding shaft that winds up an opening / closing body, and to an opening / closing device. [Background technology]

[0002] Conventionally, this type of opening and closing device has been provided with an opening and closing body that opens and closes in the vertical direction, a winding shaft that winds and unwinds the opening and closing body on the upper side, and a support bracket that supports the winding shaft so that it can rotate freely on both sides, and the support bracket is fastened and fixed to a hanging wall on the back side or the like (see, for example, Patent Document 1). The support bracket has one end of the winding shaft passing through it and transmitting the power of the drive source to the through portion, and the other end of the winding shaft (hereinafter referred to as the driven end) passing through the other support bracket. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-173028 Summary of the Invention [Problem to be solved by the invention]

[0004] According to the conventional technique, the end of the take-up shaft on the driven end side protrudes outward from the other support bracket and is exposed, and this protruding portion is visible from the outside. This may cause the protruding portion to rust, impairing the design, or foreign matter such as dust may adhere to the protruding portion. [Means for solving the problem]

[0005] In view of the above problems, one aspect of the present invention is provided with the following configuration. A support bracket for an opening and closing device, comprising: a support piece that penetrates and protrudes from the driven end side of the winding shaft in the opening and closing device to support it; and a shaft end cover that is attached to the support piece and covers the protruding portion of the winding shaft from the support piece. [Effects of the Invention]

[0006] Since the present invention is configured as described above, it is possible to prevent the protruding portion of the take-up shaft on the driven end side from being exposed. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a front view showing an opening and closing device using an example of an opening and closing device support bracket according to the present invention. [Figure 2] (a) is a side view showing the driven side of the opening and closing device, and (b) is a front view of the main part of (a) showing the opening and closing body in the rolled up state. The cover member is omitted. [Figure 3] 1A and 1B show a shaft end cover according to the present invention, where (a) is a view from the outside in the axial direction, (b) is a left side view of (a), (c) is a right side view of (a), and (d) is a bottom view of (a). [Figure 4] 10 is a perspective view of a main part of the opening and closing device, showing a state in which the fasteners of the shaft end cover have been loosened as a preparation for attaching the shaft end cover. FIG. [Figure 5] FIG. 2 is a perspective view of a main part of the opening and closing device, showing a state in which a shaft end cover is attached. [Figure 6] FIG. 2 is a perspective view of a main part of the opening and closing device, showing a state in which a shaft end cover is attached. [Figure 7] 10 is a perspective view of a main part showing an installation structure of an opening / closing device using another example of an opening / closing device shaft support bracket according to the present invention, in which the shaft end cover before installation is shown by a two-dot chain line. FIG. [Figure 8] (VIIIa) is an enlarged perspective view of part (VIIIa) in FIG. 7, and (VIIIb) is an enlarged perspective view of part (VIIIb) in FIG. [Figure 9]1A is a view of the pivot bracket for the opening and closing device as seen from the axial inside, and FIG. 1B is a left side view of FIG. [Figure 10] 10 is a perspective view of a main part showing an installation structure of an opening and closing device using another example of the opening and closing device pivot support bracket according to the present invention. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0008] Next, an embodiment of the present invention will be described in detail with reference to the drawings. In this specification, the "thickness direction of the opening / closing body" refers to the thickness direction of the opening / closing body in the closed state, and the "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 for opening and closing operations.

[0009] In addition, in this specification, "outer axial direction" means the side toward the outside of the winding shaft along the axial direction of the winding shaft, and "inner axial direction" means the side toward the inside of the winding shaft along the axial direction of the winding shaft.

[0010] First Embodiment 1 and 2 show a state in which an opening and closing device 1 using an example of an opening and closing device support bracket according to the present invention is installed on a body X. FIG.

[0011] The skeleton X in the illustrated example is a hanging wall in a building made of reinforced concrete or wood, and is provided above the opening that is opened and closed by the opening and closing device 1, across the width direction.

[0012] The opening and closing device 1 comprises an opening and closing body 10 that opens and closes in the vertical direction, a guide rail 20 that guides the widthwise end of the opening and closing body 10 in the vertical direction, and a storage section 30 that extends and stores the opening and closing body 10 on the upper side (see Figures 1 and 2).

[0013] The opening / closing body 10 is constructed by connecting multiple slats, each made by bending a horizontally elongated, roughly rectangular metal plate, in the vertical direction to form the opening / closing body main body 11, and connecting a seat plate 12 to the lower end of this opening / closing body main body 11 so that the seat plate 12 can be seated on a fixed surface below (for example, a floor, the ground, a door rail, etc.) (see Figure 1). Other examples of this opening / closing body 10 include a single or multiple panels, or a fire-resistant sheet or net-like material arranged in the opening / closing direction, or an appropriate combination of slats, panels, pipes, sheet or net-like materials, etc.

[0014] The guide rails 20 are provided on both ends of the opening / closing body 10, respectively. Each guide rail 20 is a long member that guides the opening / closing body 10 in the vertical direction by surrounding the end of the opening / closing body 10 in a concave shape. The guide rail 20 is erected substantially vertically on the lower immovable surface, and its upper end is inserted into the lintel member 35.

[0015] The storage section 30 includes a winding shaft 31 that winds up and unwinds the opening / closing body 10, support brackets 32, 32 that rotatably support the winding shaft 31 at both ends, a drive mechanism 33 (see Figure 1) that drives and rotates the winding shaft 31, a cover member 34 (see Figure 1) that covers the periphery of the opening / closing body 10 wound around the winding shaft 31, a lintel member 35 (see Figure 2) that stores the lower end portion (seat plate 12, etc.) of the opening / closing body 10 when fully open, a connecting member 36 that integrally connects the left and right support brackets 32, 32 and the lintel member 35, etc., and a shaft end cover 40 attached to the support bracket 32 ​​on the driven side (the left side according to Figure 1).

[0016] The winding shaft 31 includes a winding body 31a that winds the opening / closing body 10 around its outer circumferential surface, and a shaft portion 31b that protrudes from the winding body 31a at the center thereof to both outer sides in the axial direction.

[0017] The winding body 31a is configured in a substantially cylindrical shape with a length including the entire length of the opening / closing body 10 in the width direction.

[0018] The shaft portion 31b is configured as a cylindrical shaft that protrudes axially outward from each end of the winding body 31a. The shaft portion 31b may be a shaft-shaped member that passes through the winding body 31a, or may be a shaft-shaped member that is connected to each end of the winding body 31a. The end side of this shaft portion 31b is inserted into the pivot bracket 32 ​​and protrudes outward in the axial direction of the pivot bracket 32.

[0019] The winding shaft 31 may be configured such that the integrally formed winding body 31a and shaft portion 31b are rotatably supported on the support bracket 32 ​​via bearings, or alternatively, the winding body 31a may be configured to rotate on the shaft portion 31b fixed to the support bracket 32 ​​via bearings.

[0020] Each support bracket 32 ​​is integrally provided with a fastening piece 32a that is superimposed on and fastened to the surface of the body X, and a support piece 32b that protrudes from the fastening piece 32a away from the body X and supports the end side of the shaft portion 31b.

[0021] The fastening piece 32a is formed in the shape of a vertically long rectangular plate. The fastening piece 32a is fastened to the surface of the body X by a plurality of fasteners 37 (for example, screws, bolts, anchors, etc.) spaced apart in the vertical direction.

[0022] The support piece 32b is formed in a plate shape that is approximately perpendicular to the winding shaft 31. The support piece 32b protrudes approximately perpendicularly from the fastening piece 32a. The support piece 32b has a notch 32b1 into which the shaft portion 31b of the winding shaft 31 can be inserted from the front side (the right side in FIG. 2(a)). In addition, the upper and lower ends of the support piece 32b are provided with bent pieces 32b2, 32b2 for reinforcement.

[0023] The cutout portion 32b1 is a cutout through which the shaft portion 31b is inserted and which continues approximately horizontally to the front edge of the support piece 32b. After the shaft portion 31b of the winding shaft 31 is inserted, the cutout portion 32b1 is covered with a cutout cover 32b3 so as to leave the inserted portion.

[0024] The notch cover 32b3 is fastened and fixed to the support piece 32b by the fastener 32c that fastens the shaft end cover 40. The fastener 32c is a threaded member such as a screw or bolt, and its head is engaged with the shaft end cover 40, and its threaded portion is inserted through the shaft end cover 40 and the support piece 32b and is threaded into the support piece 32b. That is, the fastener 32c fastens the shaft end cover 40 and the notch cover 32b3 together.

[0025] The drive mechanism 33 (see Figure 1) is configured to transmit the rotational force of the opening / closing machine (e.g., an electric motor), which is the drive source, to the winding shaft 31 via pulleys, belts, etc., and is supported by the support bracket 32 ​​on the driven side (right side of Figure 1).

[0026] The cover member 34 (see FIG. 1) is a member that covers the periphery of the winding shaft 31 in the width direction, and is fixed to a stationary portion of the storage section 30 by a connecting member 36 and a frame (not shown) or the like.

[0027] The lintel member 35 forms an opening through which the opening / closing body 10 passes in the vertical direction. The edge portions of the opening of the lintel member 35 are located on both sides of the seat plate 12 of the opening / closing body 10 in the fully open state, spaced apart in the thickness direction of the opening / closing body (see FIG. 2(a)).

[0028] The connecting member 36 is a long member that spans almost the entire width of the storage section 30, and receives the left and right connecting members 36 from below to connect them together, and also fixes the cover member 34, lintel member 35, etc. together.

[0029] The shaft end cover 40 covers the portion of the shaft portion 31b on the driven side of the winding shaft 31 that protrudes from the support piece 32b. This shaft end cover 40 is configured to move from the front side to the back side during the process of being attached to the support piece 32b, cover the part of the shaft portion 31b that protrudes from the support piece 32b, and be fastened to the support piece 32b (see Figure 2).

[0030] The shaft end cover 40 is integrally provided with an end opposing piece 41 that faces and covers the end face of the shaft portion 31b, an upper piece 42 that covers the protruding portion of the shaft portion 31b from above, a lower piece 43 that covers the protruding portion of the shaft portion 31b from below, a rear piece 44 that covers the protruding portion of the shaft portion 31b from the rear side (left side in Figure 2(a)) of the support bracket 32, a front piece 45 that covers the protruding portion of the shaft portion 31b from the front side (right side in Figure 2(a)) of the support bracket 32, and a fastening piece 46 that is superimposed on and fastened to the cutout cover 32b3, and is formed in a roughly box-like shape that is open on the side facing the winding shaft 31 (see Figures 3 and 5). The shaft end cover 40 may be produced by appropriately processing (for example, pressing, bending, welding, etc.) a metal plate material.

[0031] The rear piece 44 has a notch 44a so that when the shaft end cover 40 is attached to the support bracket 32, the protruding portion of the shaft portion 31b passes through as the shaft end cover 40 moves from the front side to the rear side along the support piece 32b (see Figure 3(b)).

[0032] The fastening piece 46 is provided with a plurality of types (two types in the illustrated example) of pairs of fastening holes spaced apart vertically so that the fastening members 32c can be inserted and locked. These multiple types of fastening holes are used depending on the size and type of the support bracket 32.

[0033] 3, two fastening holes indicated by the symbol 46a are provided, one above the notch 32b1 and the other below it. In the illustrated example, the shaft end cover 40 and the notch cover 32b3 are fastened to the support piece 32b of the journal bracket 32 ​​using these two fastening holes 46a.

[0034] In FIG. 3, two fastening holes indicated by reference numeral 46b are provided at the back side of fastening hole 46a (left side in FIG. 2(a)), and positioned above and below notch 32b1. These two fastening holes 46b, 46b are used when attaching the shaft end cover 40 and the notch 32b1 to a journal bracket (not shown) that is smaller than the journal bracket 32 ​​that uses the fastening hole 46a. Therefore, in the illustrated example, these fastening holes 46b, 46b are not used.

[0035] Each fastening hole 46a has a shape that is continuous in the plane, connecting a large diameter hole 46a1 large enough to insert the head of the fastening device 32c and a small diameter hole 46a2 large enough to insert only the screw portion of the fastening device 32c, and is sometimes called a daruma hole. The large diameter hole 46a1 and the small diameter hole 46a2 are located on the rear side (left side in FIG. 2) and front side of the pivot support bracket 32, respectively. Each fastening hole 46b is a potbellied hole that has the same shape as the fastening hole 46a but is smaller than the fastening hole 46a.

[0036] The shaft end cover 40 having the above-described configuration is located in the space between the upper and lower bent piece portions 32b2, 32b2. Preferably, the amount of protrusion w2 of this shaft end cover 40 from the support piece 32b is set to be equal to or less than the amount of protrusion w1 of the bent piece portion 32b2 (see FIG. 2(b)).

[0037] <Procedure for fastening the shaft end cover 40> The shaft end cover 40 having the above-described configuration may be incorporated into the switching device 1 during the manufacturing stage of the switching device 1, or may be attached to an existing switching device 1. 4 to 6 illustrate the procedure for attaching the shaft end cover 40 to the existing switchgear 1. FIG.

[0038] First, as shown in Fig. 4, the fasteners 32c, 32c that fasten the notched cover 32b3 are loosened for the pivot bracket 32 ​​of the existing opening and closing device 1. Then, each fastener 32c is held in a state where there is a gap between the head and the support piece 32b.

[0039] Next, as shown by the two-dot chain line in Figure 5, the shaft end cover 40 is inserted between the upper and lower bent pieces 32b2, 32b2 from the front side to the back side. During this operation, the shaft end cover 40 allows the shaft portion 31b to escape via the cutout portion 44a, so the shaft end cover 40 moves smoothly to the back side without interfering with the shaft portion 31b.

[0040] Thereafter, the shaft end cover 40 is moved axially inward and placed on the notched cover 32b3. When overlapping, the large diameter hole 46a1 (see Figure 3) is first fitted into the loosened fastener 32c, and then the shaft end cover 40 is shifted to the rear side and the small diameter hole 46a2 is fitted into the fastener 32c (see Figure 6).

[0041] The shaft end cover 40 and the notch cover 32b3 are fastened together to the support piece 32b by upper and lower fasteners 32c, 32c.

[0042] Therefore, according to the opening and closing device 1 having the above configuration, the protruding portion on the driven end side of the winding shaft 31 (shaft portion 31b) is exposed, and this protruding portion can be prevented from being visible from the outside and from foreign matter adhering to this protruding portion.

[0043] <About other shaft end covers 50> In the opening and closing device 1 having the above-described configuration, the shaft end cover 40 can be replaced with a shaft end cover 50 shown in FIGS.

[0044] The shaft end cover 50 is formed so as to straddle and cover the upper and lower bent piece portions 32b2, 32b2 of the support piece 32b. In more detail, the shaft end cover 50 is integrally formed with a flat end opposing piece 51 that faces the end of the shaft portion 31b, spanning the upper and lower curved piece portions 32b2, 32b2, an upper overlapping portion 52 that overlaps the upper curved piece portion 32b2 from above, and a lower overlapping portion 53 that overlaps the lower curved piece portion 32b2 from below, and has a shape with an approximately vertically elongated C-shaped cross section (see Figure 9(b)) that continues in the front-to-back direction of the shaft support bracket 32.

[0045] 7, the shaft end cover 50 is fitted onto the journal bracket 32 ​​from the front side and slid toward the rear side. The rear side of the journal bracket 32 ​​is covered by the shaft end cover 50, and the front side is exposed to the outside.

[0046] The end facing piece 51 is formed in a flat plate shape that contacts the upper and lower bent piece portions 32b2, 32b2 from the outside in the axial direction.

[0047] The upper overlapping portion 52 has an inverted concave cross section that overlaps the upper bent piece portion 32b2 from above and continues along the upper edge of the end facing piece 51 (see FIG. 9). The innermost end of the upper overlapping portion 52 is provided with an innermost locking portion 52a that is locked to the innermost end of the upper bent piece portion 32b2.

[0048] The rear locking portion 52a is formed in a plate shape protruding from the upper overlapping portion 52, and is bent downward to be locked to the rear end of the upper bent piece portion 32b2 (see FIG. 8).

[0049] The lower overlapping portion 53 has a concave longitudinal cross section that is formed by turning the upper overlapping portion 52 upside down and continues along the lower edge of the end facing piece 51 . This lower overlapping portion 53 is partially provided rearward (toward the left in FIG. 9(a)) with respect to the end facing piece 51 so as not to interfere with the lintel member 35 and the like.

[0050] Therefore, the shaft end cover 50 shown in Figures 7 to 9 can achieve substantially the same effects as the shaft end cover 40 described above, and can further improve the appearance of the support bracket 32. Moreover, the shaft end cover 50 can be fitted onto the shaft support bracket 32 ​​from the front side, making the work easier.

[0051] <About other shaft end covers 60> In the opening and closing device 1 having the above-described configuration, the shaft end cover 40 can be replaced with a shaft end cover 60 shown in FIG.

[0052] The shaft end cover 60 is integrally composed of a flat end opposing piece 61 that faces the end of the shaft portion 31b, spanning the upper and lower curved piece portions 32b2, 32b2, an upper overlapping portion 62 that overlaps the upper curved piece portion 32b2 from above, a lower overlapping portion 63 that overlaps the lower curved piece portion 32b2 from below, and a front side piece portion 64 that covers the protruding portion of the shaft portion 31b from the front side.

[0053] This shaft end cover 60 is used when the amount of protrusion w2 (see FIG. 2(b)) of the shaft portion 31b protruding outward in the axial direction from the support piece 32b is greater than the amount of protrusion w1 of the bent piece portion 32b2 from the notch 32b1.

[0054] The end facing piece 61 has a generally laterally convex (or horizontally hat-shaped) vertical cross section that extends horizontally so as to cover the portion of the shaft portion 31b that protrudes axially outward from the support piece 32b. The protruding end surface of this end facing piece 61 is located axially outward of the protruding ends of the upper and lower bent piece portions 32b2, 32b.

[0055] Therefore, the shaft end cover 60 shown in Figure 10 can achieve substantially the same effect as the shaft end cover 40 described above, and even when the amount of protrusion of the shaft portion 31b is relatively large, the protruding portion of the shaft portion 31b can be covered and hidden so that it cannot be seen from below or in front, thereby further improving the design appearance. Moreover, the shaft end cover 60 can be fitted onto the shaft support bracket 32 ​​from the front side, making the work easier.

[0056] <Modification> According to the embodiment shown in Figures 1 to 6, in a particularly preferred embodiment, the shaft end cover 40 and the cutout cover 32b3 are fastened to the support piece 32b by the same fastener 32c, but other examples include an embodiment in which the shaft end cover 40 and the cutout cover 32b3 are fastened to the support piece 32b by different fasteners, or an embodiment in which one or both of the shaft end cover 40 and the cutout cover 32b3 are fitted into the support piece 32b.

[0057] In addition, as an example other than the illustrated example, a rail portion that allows the shaft end cover 40 to slide in the front-to-back direction (left-to-right direction in Figure 2(a)) can be provided between the shaft end cover 40 and the support piece 32b, and the shaft end cover 40 can be moved along this rail portion toward the back and placed in a predetermined position.

[0058] The present invention is not limited to the specific configuration described above, and can be modified as appropriate within the scope of the present invention.

[0059] <Summary> As described above, the above embodiments disclose the following inventions. (1) A support bracket for an opening and closing device (see Figures 1 to 10) characterized by comprising: a support piece that penetrates and protrudes from the driven end side of the winding shaft in the opening and closing device to support it; and a shaft end cover that is fastened to the support piece and covers the protruding portion of the winding shaft from the support piece. (2) The support bracket for an opening and closing device described in (1) (see Figures 4 to 6) is characterized in that the support piece has a cutout portion into which the winding shaft can be inserted from the front side, the cutout portion is covered with a cutout cover, and the shaft end cover and the cutout cover are fastened to the support piece by the same fastener. (3) The support bracket for an opening and closing device described in (1) or (2) is characterized in that the support piece has a curved piece portion at the upper end and lower end, each of which is bent outward in the axial direction, and the shaft end cover is provided between the upper and lower curved piece portions (see Figures 2 and 6). (4) The support bracket for an opening and closing device described in (1) or (2) is characterized in that the support piece has a curved piece portion at the upper end and lower end, each of which is bent outward in the axial direction, and the shaft end cover is arranged to straddle and cover the upper and lower curved piece portions (see Figures 7 to 10). (5) The shaft end cover has an upper overlapping portion that overlaps the upper curved piece portion from above, and the upper overlapping portion is engaged with the rear side of the upper curved piece portion (see Figures 7 to 8) in the shaft support bracket for an opening and closing device described in (4). (6) The shaft support bracket for an opening and closing device described in any one of (1) to (5) is characterized in that the shaft end cover is configured to move to the rear side and cover the protruding portion (see Figures 5, 7 and 8). (7) The shaft end cover has a rear piece that covers the protruding portion from the rear side, and the rear piece has a notch that allows the protruding portion to pass through as the shaft end cover moves from the front side to the rear side along the support piece (see Figure 3). (8) An opening and closing device including the opening and closing device pivot support bracket according to any one of (1) to (7) (see FIGS. 1, 2, 6, 7 and 10). [Explanation of symbols]

[0060] 1: Switchgear 10: Opening and closing body 20: Guide rail 30: Storage area 31: Winding shaft 31a: Winding body 31b: Shaft part 32: Axial support bracket 32a: Fastening piece 32b: Support piece 32b1: Notch 32b2: Song piece part 32c: Fastener 40, 50, 60: Shaft end cover

Claims

1. A support bracket for an opening and closing device, comprising: a support piece that penetrates and protrudes from the driven end side of the winding shaft in the opening and closing device to support it; and a shaft end cover that is attached to the support piece and covers the protruding portion of the winding shaft from the support piece.

2. the support piece has a notch into which the winding shaft can be inserted from the front side, The notch is covered by a notch cover, 2. The switchgear shaft support bracket according to claim 1, wherein the shaft end cover and the notch cover are fastened to the support piece by the same fastener.

3. The support piece has a bent piece portion at each of an upper end and a lower end, the bent piece portion being bent outward in the axial direction, 2. The pivot bracket for a switchgear according to claim 1, wherein the pivot end cover is provided between the upper and lower curved pieces.

4. The support piece has a bent piece portion at each of an upper end and a lower end, the bent piece portion being bent outward in the axial direction, 2. The switchgear shaft support bracket according to claim 1, wherein the shaft end cover is provided so as to straddle and cover the upper and lower bent piece portions.

5. the shaft end cover has an upper overlapping portion that overlaps the upper bent piece portion from above, 5. The pivot bracket for a switchgear device according to claim 4, wherein the upper overlapping portion is engaged with the inner side of the upper bent piece portion.

6. 2. The pivot bracket for a switchgear according to claim 1, wherein the shaft end cover is configured to move toward the rear side to cover the protruding portion.

7. the shaft end cover has a rear piece that covers the protruding portion from the rear side, The support bracket for an opening and closing device according to claim 6, characterized in that the rear piece has a notch through which the protruding portion passes as the shaft end cover moves from the front side to the rear side along the support piece.

8. A switchgear comprising the switchgear pivot support bracket according to any one of claims 1 to 7.

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