shutter

Abstract

To provide a shutter with an upper guide that has taken into consideration a configuration of particular slats and guide rails.SOLUTION: A first guide element 15 is provided next to an opening groove 13 on the inner surface of a pair of side edges 10, 11 of a guide rail 1 and across the height direction, an upper guide 7 has a pair of narrow guide pieces 70, and a second guide element 75 is provided opposite the pair of guide pieces 70, a head 840 of a rivet 84 that fixes a wind-resistant hook 8 faces the inner surface of the side edge 10 at both ends of the width of a slat 4, the second guide element 75 is spaced away from the head 840 of the rivet 84 toward the opening side, thereby restricting contact with the head 840, and the lower end of the second guide element 75 has an overlapping portion that overlaps the upper end of the first guide element 15 in a plan view, so that the first guide element 15 and the second guide element 75 are continuous in the height direction.SELECTED DRAWING: Figure 12

Description

Technical Field

[0001] The present invention relates to a shutter, and more particularly to a shutter provided with upper guides above left and right guide rails.

Background Art

[0002] In an electric shutter (for example, a lightweight electric shutter), there is a type in which upper guides are provided above left and right guide rails to guide slats from the upper ends of the guide rails into the shutter case. For example, Patent Document 1 describes a guide structure for a shutter curtain provided at a connecting portion between a shutter storage portion and a guide rail, which guides the entry and exit of the shutter curtain and suppresses the contact sound when the shutter curtain opens and closes, as well as a guide member.

[0003] Since the slats may contact the upper guide when the shutter opens and closes, the upper guide is required to have sound insulation. However, since the sound insulation of the upper guide may be affected by the configuration of specific slats or guide rails, it is necessary to consider the structure of the upper guide while taking into account the configuration of specific slats or guide rails.

Patent Document 1

Disclosure of the Invention

Problems to be Solved by the Invention

[0004] An object of the present invention is to provide a shutter provided with an upper guide considering the configuration of specific slats or guide rails.

Means for Solving the Problems

[0005] The technical means adopted by the present invention are as follows: A shutter curtain formed by connecting a plurality of slats and opening and closing an opening; Left and right guide rails erected on both sides in the width direction of the opening; Located at the upper ends of the left and right guide rails, the left and right upper guides are fixed to the left and right brackets, It consists of, The guide rail comprises a pair of side edges, a bottom edge, and an opening groove, and the widthwise ends of the shutter curtain are received in the slat end receiving portion between the pair of side edges from the opening groove, and a first guide element is provided on the inner surface of the pair of side edges adjacent to the opening groove and extending in the height direction. The upper guide is provided with a pair of narrow guide pieces, and a second guide element is provided opposite to the pair of guide pieces. Windproof hooks are provided by fasteners at both ends in the width direction of at least some of the aforementioned slats, and the portion of the fasteners protrudes from at least one visible surface of the slats. The internal space of the guide rail consists of a locking piece into which the windproof hook engages, a windproof hook receiving portion located on the bottom side relative to the locking piece, and a slat end receiving portion located on the opening groove side relative to the locking piece. The portion of the fastener is facing the inner surface of at least one side, The second guide element is spaced apart from the portion of the fixing device toward the opening, thereby restricting contact with that portion, and the lower end of the second guide element has an overlapping portion that overlaps with the upper end of the first guide element in a plan view, so that the first guide element and the second guide element are continuous in the height direction. It's a shutter.

[0006] In one embodiment, the guide piece and the second guide element of the upper guide consist of a first portion located directly above the portion of the guide rail and the first guide element in a plan view, forming the overlapping portion, and a second portion located on the opening side with respect to the guide rail and the first guide element. [Effects of the Invention]

[0007] The present invention provides a shutter comprising a guide rail with a first guide element and an upper guide with a second guide element, wherein a fastener for fixing a windproof hook to the end of a slat protrudes from the end of the slat, and makes it possible to form a guide surface that is continuous in the height direction from the first guide element and the second guide element while avoiding contact between the protruding part of the fastener and the second guide element. [Brief explanation of the drawing]

[0008] [Figure 1] These are a front view and a vertical cross-sectional view of a shutter device (fully closed position) equipped with a shutter curtain according to this embodiment, as seen from the outside. [Figure 2] This is a front view of the shutter curtain according to this embodiment. [Figure 3] This is a side view of the shutter curtain according to this embodiment. [Figure 4] This figure shows the mounting structure of the windproof hook according to this embodiment. [Figure 5] This figure shows the drive-side bracket according to this embodiment. [Figure 6] This figure shows the driven bracket according to this embodiment. [Figure 7] This is a front view of the guide rail according to this embodiment, seen from the perspective of the inside. [Figure 8] This is a cross-sectional view of the guide rail according to this embodiment. [Figure 9] This figure shows the upper guide according to this embodiment. [Figure 10] This is a front view showing the wiring of the photoelectric switch according to this embodiment. [Figure 11] This is a side view showing the wiring of the photoelectric switch according to this embodiment. [Figure 12] This diagram shows the positional relationship between the first guide element of the guide rail and the second guide element of the upper guide. [Figure 13] This is a magnified view of a section of the guide element in Figure 12. [Figure 14]A side view showing the positional relationship (in the height direction) between the upper guide and the slats (when the lower slats are wound up in an inclined posture) when the shutter curtain is in a state close to the fully open state. [Figure 15] A side view showing the positional relationship (in the height direction) among the upper guide, the slats (when the lower slats are wound up in an inclined posture), and the seat plate when the shutter curtain is fully open. [Figure 16] Front view and plan view showing the positional relationship between the end of the slat and the upper guide when the shutter curtain is at an equal position in the left - right direction. [Figure 17] Front view and plan view showing the positional relationship between the end of the slat and the upper guide when the shutter curtain is shifted to the right and the wind - resistant hook is in the locked state.

Embodiments for Carrying Out the Invention

[0009] FIG. 1 is a front view and a longitudinal sectional view of a shutter device in a fully closed state as seen from the outdoor side. The shutter device includes left and right guide rails 1 at the left and right of the opening, a winding shaft 2 provided in the shutter storage space above the opening, and a shutter curtain 3 whose upper end is connected to the winding shaft 2 and both width - direction ends of which are guided in the groove portions of the guide rails 1. As shown in FIGS. 1 to 3, the shutter curtain 3 is composed of a plurality of slats 4 that are swingably connected to each other, and a seat plate 5 that is swingably connected to the lowermost slat 4 among the plurality of slats 4. At both width - direction ends above the opening, left and right brackets 6 are provided above the left and right guide rails 1. On the left and right brackets 6, upper guides (also referred to as bracket guides) 7 are fixed at the upper ends of the respective guide rails 1. In the plurality of slats 4 forming the shutter curtain 3, at every other one in the height direction, wind - resistant hooks 8 are provided at both left - right direction ends of the slats 4.

[0010] As shown in FIGS. 7 and 8, the guide rail 1 according to this embodiment has a U-shaped cross-section including a pair of opposing side edges 10 and 11 and a bottom edge 12, and an opening groove 13 for receiving the slat end is formed between the tips of the pair of side edges 10 and 11. On the side edges 10 and 11 of the guide rail 1, locking pieces 14 for the wind-resistant hooks 8 (locking portions 83) to lock in an opposing manner are formed on the bottom edge 12 side. The internal space formed between the side edges 10 and 11 of the guide rail 1 consists of a slat end receiving space 1A on the opening groove side of the locking piece 14 and a hook portion receiving space 1B on the bottom edge side of the locking piece 14. A first projected piece 16A is integrally formed at the tip of the side edge 10, and a second projected piece 16B is integrally formed at the tip of the side edge 11. The vertical plane formed by the projected surface of the guide rail 1 is represented by the reference numeral 16.

[0011] On the inner surfaces of the pair of side edges 10 and 11 of the guide rail 1, pocket portions 15' are formed extending in the height direction adjacent to the opening groove 13, and first guide elements 15 are provided in an opposing manner in the pocket portions 15' extending in the height direction. The first guide element 15 according to this embodiment is a long element formed from a rubber member, but the material of the first guide element 15 is not limited.

[0012] The guide rail 1 according to this embodiment is provided as a guide rail assembly assembled from multiple members. Specifically, as shown in Figure 8, it comprises a first member having a U-shape in cross-section, a pair of side edges 10 and 11, a base edge 12, a second member having a U-shape in cross-section, a first side facing piece 17A, a first side facing surface 18A, a first side base edge 19A, a third member having a U-shape in cross-section, a second side facing piece 17B, a second side facing surface 18B, a second side base edge 19B, and so on. The guide rail assembly is erected, with the first visible surface of the first side being the first visible surface 18A, the second visible surface being the second visible surface 18B, the first recessed surface being the first recessed piece 16A and the first recessed piece 17A, the second recessed surface being the second recessed piece 16B and the second recessed piece 17B, and the bottom surface being the bottom edge 12, the first bottom edge 19A and the second bottom edge 19B. In the illustrated embodiment, the first member and the second member are locked on the side away from the opening groove 13 and their recessed portions are connected by screws, and the first member and the third member are locked on the side away from the opening groove 13 and their recessed portions are connected by screws. The specific configuration of the guide rail 1 is not limited to the illustrated embodiment.

[0013] The upper end of the guide rail assembly according to this embodiment is a convex portion, and a first member (including an opening groove, a pocket portion, and a locking piece 14) having a U-shape in cross-section, extending over the entire height of the guide rail assembly, with the upper end portion of the first member being a convex portion. The upper end surface of the guide rail assembly consists of a first upper end 100 at the highest position and second upper ends 101 located below the first upper end 100 on both sides in the depth direction of the first upper end 100.

[0014] As shown in Figures 5 and 6, the bracket 6 consists of a plate-shaped surface 60 and a plurality of bent pieces 61, 62, 63, and 64 on the periphery of the surface 60. A support portion 65 for the winding shaft 2 is provided approximately in the center of the surface 60, and a plurality of angle members 66 (see Figure 10) extending in the direction of the opening width are connected between predetermined bent pieces. An upper guide 7 is fixed to the lower end of the base end side (body side) of the surface 60, positioned at the upper end of each guide rail 1. In this embodiment, the left and right brackets 6 consist of a drive-side bracket 6A and a driven-side bracket 6B, and a convex projection for housing wiring is formed in a predetermined part of the surface 60 of the drive-side bracket 6A.

[0015] Between the left and right brackets 6, there is a shutter case C with a shutter storage space. A winding shaft 2 is provided on the support portion 65 of the surface portion 60 of the left and right brackets 6. When the opening is fully open, the shutter curtain 3 is wound onto the winding shaft 2 and stored inside the shutter case C.

[0016] As shown in Figure 9, the upper guide 7 consists of a pair of narrow guide pieces 70 which are curved pieces that expand upward, a pair of rising support parts 71 which support the lower ends of the pair of guide pieces 70, a pair of horizontal pieces 72 at the lower ends of each support part 71, a vertical piece 73 which is spaced apart from the pair of guide pieces 70 and located on the bottom side, and rising pieces 74 on the bottom side of the pair of horizontal pieces 72. The upper guide 7 is fixed (for example, by spot welding) with the vertical piece 73 and rising pieces 74 in contact with the surface portion 60 of the bracket 6.

[0017] A pair of narrow guide pieces 70 of the upper guide 7 have opposing second guide elements 75 on their inner surfaces (opposing surfaces), and the pair of second guide elements 75 define an upwardly expanding curved guide surface. In this embodiment, the guide pieces 70 and the second guide elements 75 are of the same width. In this embodiment, the second guide elements 75 are resin guide members, but the material of the second guide elements 15 is not limited.

[0018] As shown in Figure 9, in the upper guide 7 according to this embodiment, the pair of support parts 71 that support the lower end portions of the pair of guide pieces 70 consist of an upper support piece 710 and a lower support piece 711. A first member with a U-shape in cross-section is formed from the pair of upper support pieces 710 and a vertical piece 73, a second member is formed from one lower support piece 711 and one horizontal piece 72, and a third member is formed from the other lower support piece 711 and the other horizontal piece 72.

[0019] The lower end of the first member and the lower end of the guide piece 70 (and the second guide element 75) are located above the pair of horizontal pieces 72, and an insertion portion for the protrusion at the upper end of the guide rail 1 is formed between the pair of horizontal pieces 72, with the first upper end 100 of the upper end of the protrusion contacting the lower end of the first member of the upper guide 7, and the second upper end 101 of the guide rail assembly contacting the lower surface of the horizontal piece 72 of the upper guide 7 (see Figure 14).

[0020] The lower surfaces of the horizontal pieces 72 below the left and right upper guides 7 coincide with the lower end of the bracket 6. The lower ends of the guide piece 70 and the second guide element 75 of the upper guide 7 are located above the lower end of the bracket 6, and the protrusion at the upper end of the guide rail 1 is located above the lower end of the bracket 6. A lintel 67 is supported between the left and right horizontal pieces 72. The lintel 67 is located at the lower end of the shutter case C and extends across the entire width of the opening.

[0021] A photoelectric sensor 9, consisting of a light-receiving unit 9A and a light-emitting unit 9B, is provided at the lower part of the left and right guide rails 1. When the light beam is blocked by an obstacle, a detection signal is transmitted to the control unit of the switch. An amplifier 90 for the photoelectric sensor 9 is provided on the bracket 6, and in this embodiment, the detection signal is input to the amplifier 90 and output to the control unit.

[0022] A pair of horizontal pieces 72 of the upper guide 7 have holes 76 formed in them. One hole 76 is used for the wiring 91A or 91B of the photoelectric switch, and the other hole 76 is closed with a cap. The hollow sections of the second and third members of the guide rail assembly are located directly below the holes 76 of the pair of horizontal pieces 72 of the upper guide 7. Depending on the mounting position of the photoelectric switch (internal or external), different wiring (in Figure 11, wiring 91A is the wiring for the photoelectric switch when it is externally mounted, and wiring 91B is the wiring for the photoelectric switch when it is internally mounted) is selectively performed.

[0023] As shown in Figures 1 and 4, the slat 4 is a long material extending in the opening width direction and consists of a hollow body 40 having a first visible surface 400 and a second visible surface 401, an upper engaging portion 41 integrally formed on the upper side of the body 40, and a lower engaging portion 42 integrally formed on the lower side of the body 40. In vertically adjacent slats 4, the upper engaging portion 41 of the lower slat 4 interlocks with the lower engaging portion 42 of the upper slat 4.

[0024] As shown in Figures 2 and 3, windproof hooks 8 are provided at both ends in the width direction of the slats 4, with every other slat 4 in the height direction. As shown in Figure 4, the windproof hook 8 consists of an insertion portion 80 inserted into the hollow part at the width direction end of the slat body 40, a contact portion 81 that abuts against the end faces at both ends in the width direction of the slat 4, a projection 82 protruding from the contact portion 81, and a locking portion 83 formed at the tip of the projection 82. The windproof hook 8 is fixed to the slat 4 by rivets 84 that penetrate in the thickness direction at the width direction end of the slat body 40 (where the insertion portion 80 is inserted). The heads 840 of the rivets 84 protrude from both ends in the width direction of the first visible surface 400 of the slat body 4. The upper and lower ends of the contact portion 81 of the windproof hook 8 are in close proximity to the engagement portions of the vertically adjacent slats 4 from the outside, thereby restricting lateral movement of the slats 4.

[0025] The seat plate 5 is a long material extending in the direction of the opening width, and is integrally formed from a flat portion 51 that rests on the floor or ground FL and a vertical portion 50 that rises from the flat portion 51. The vertical portion 50 of the seat plate 5 has the same width dimension as the slat 4, while the flat portion 51 is shorter than the vertical portion 50, and the width dimension of the flat portion is slightly smaller than the width dimension of the opening. The widthwise ends of the vertical portion 50 of the seat plate 5 are located within the grooves (slat end receiving portions 1A) of the guide rail 1, and the flat portion 51 is located outside the grooves of the guide rail 1. When the opening is fully closed, the lower surface of the flat portion 51 of the seat plate 5 rests on the floor, and when the opening is fully open, the upper surface of the flat portion 51 of the seat plate 5 abuts against the lower surface of the horizontal piece 72 of the upper guide 7 and the lintel portion 67.

[0026] The shutter according to this embodiment comprises a shutter curtain 3 formed by connecting a plurality of slats 4 to open and close an opening, left and right guide rails 1 erected on both sides in the width direction of the opening, and left and right upper guides 7 located at the upper ends of the left and right guide rails 1 and fixed to left and right brackets 6. The guide rails 1 each have a pair of side edges 10 and 11, a bottom edge 12, and an opening groove 13, and are configured to receive both ends of the shutter curtain 3 in the width direction from the opening groove 13. A first guide element 15 is provided on the inner surface of the pair of side edges 10 and 11 adjacent to the opening groove 13 and extending in the height direction.

[0027] Windproof hooks 8 are provided at both ends of the slat 4 in the width direction by rivets 84 as shown as fasteners, with the heads 840 of the rivets 84 protruding from one visible surface 400 of the slat 4. The internal space of the guide rail consists of a locking piece 14 into which the windproof hook 8 engages, a windproof hook receiving portion 1B located on the bottom side of the locking piece 14, and a slat end receiving portion 1A located on the opening groove 13 side of the locking piece 14, with the heads 840 of the rivets 84 facing the inner surface of the side edge 10 at the slat end receiving portion 1A.

[0028] The upper guide 7 is equipped with a pair of narrow guide pieces 70, and a second guide element 75 is provided opposite to the pair of guide pieces 70. When the shutter curtain 3 is opened and closed, the second guide element 75 moves away from the head 840 of the rivet 84 toward the opening side, thereby preventing contact with the head 840. When the shutter curtain 3 is opened and closed, if the slat 4 is in an inclined position at the height of the upper guide 7 (see Figure 14), the widthwise end of the first visible surface 400 or the second visible surface 401 of the slat 4 may come into contact with the second guide element 75. If the head 840 of the rivet 84 protruding from the slat 4 comes into contact with the second guide element 75, it can cause abnormal noise.

[0029] Figure 16 shows the positional relationship between the slat ends and the upper guide 7 when the shutter curtain 3 is in an equally symmetrical position in the left-right direction. When the second guide element 75 and the head 840 of the rivet 84 are at the same height, the head 840 of the rivet 84 and the second guide element 75 are spaced apart. Figure 17 shows the positional relationship between the slat ends and the upper guide 7 when the shutter curtain 3 is shifted to the right and the windproof hook 8 is locked to the locking piece 14. Even when the slat ends are shifted towards the opening side from the state in Figure 16, when the second guide element 75 and the head 840 of the rivet 84 are at the same height, the head 840 of the rivet 84 and the second guide element 75 are spaced apart.

[0030] As shown in Figures 12 and 13, the guide piece 70 of the upper guide 7 consists of a first portion 70A located inward relative to the vertical surface 16 formed by the depth surface of the guide rail 1, and a second portion 70B located outward relative to the vertical surface 16. The second guide element 75 of the upper guide 7 consists of a first portion 75A located inward relative to the vertical surface 16 formed by the depth surface of the guide rail 1, and a second portion 75B located outward relative to the vertical surface 16.

[0031] The lower end of the guide piece 70 of the upper guide 7 is in contact with the tip portions of the side edges 10 and 11 of the guide rail, and the lower end of the second guide element 75 and the upper end portion of the first guide element 15 are in close proximity. The first guide element 15 forms a guide surface that is substantially vertical in the height direction, and the lower end portion of the guide surface of the second guide element 75 coincides with the vertical surface formed by the guide surface of the first guide element 15.

[0032] The lower end of the second guide element 75 has an overlapping portion (in Figure 13, the extent of the overlapping portion is indicated by reference numeral 750) that overlaps with the upper end of the first guide element 15 in a plan view, so that the guide surface of the first guide element 15 and the guide surface of the second guide element 75 are continuous in the height direction. In this embodiment, the lower end of the second guide element 75 consists of a first portion 75A that is located directly above the pocket portion 15' of the guide rail 1 and the portion of the first guide element 15 in a plan view and forms an overlapping portion 750, and a second portion 75B that is located on the opening side relative to the guide rail 1 and the first guide element 15.

[0033] This embodiment provides a shutter comprising a guide rail 1 equipped with a first guide element 15 and an upper guide 7 equipped with a second guide element 75, wherein the heads 840 of rivets 84 for fixing windproof hooks 8 to the ends of the slats protrude from the widthwise ends of the first visible surface 400 of the slats 4. This embodiment makes it possible to form a guide surface that is continuous in the height direction from the first guide element 15 and the second guide element 75 while avoiding contact between the heads 840 of the rivets 84 and the second guide element 75. The guide piece 70 and the second guide element 75 of the upper guide 7 according to this embodiment have second portions 70B and 75B located on the outside (opening side) with respect to the vertical surface 16 formed by the visible surface of the guide rail 1. However, since the second portions 70B and 75B are located above the opening, the effective opening width dimension is not narrowed. [Explanation of symbols]

[0034] 1 Guide rail 10 sides 11 Sides 12 Bottom 13 Opening groove 14 Locked piece 15. First Guide Element 15' Pocket section 3. Shutter Curtain 4 slats 6 brackets 7 Top Guide 70 guide pieces 70A 1st part 70B 2nd part 75. Second Guide Element 75A Part 1 75B 2nd part 8 Windproof hooks 84 rivets 840 Rivet Heads

Claims

1. A shutter curtain made up of multiple slats connected together, which opens and closes the opening, Left and right guide rails erected on both sides in the width direction of the opening, Located at the upper ends of the left and right guide rails, the left and right upper guides are fixed to the left and right brackets, It consists of, The guide rail comprises a pair of side edges, a base, and an opening groove, and the widthwise ends of the shutter curtain are received in the slat end receiving portion between the pair of side edges from the opening groove, and a first guide element is provided on the inner surface of the pair of side edges adjacent to the opening groove and extending in the height direction. The upper guide comprises a pair of narrow guide pieces, and a second guide element is provided opposite to the pair of guide pieces. Windproof hooks are provided by fasteners at both ends in the width direction of at least some of the aforementioned slats, and the portion of the fasteners protrudes from at least one visible surface of the slats. The internal space of the guide rail consists of a locking piece into which the windproof hook engages, a windproof hook receiving portion located on the bottom side relative to the locking piece, and a slat end receiving portion located on the opening groove side relative to the locking piece. The portion of the fastener is facing the inner surface of at least one side, The second guide element is spaced apart from the portion of the fixing device toward the opening, thereby restricting contact with that portion, and the lower end of the second guide element has an overlapping portion that overlaps with the upper end of the first guide element in a plan view, so that the first guide element and the second guide element are continuous in the height direction. shutter.

2. The upper guide's guide piece and the second guide element consist of, in a plan view, a first portion located directly above the portion of the guide rail and the first guide element to form the overlapping portion, and a second portion located on the opening side relative to the guide rail and the first guide element. The shutter according to claim 1.

Images