Fixing Structure of Hooking Fittings in a Shutter

Abstract

To support a hooking metal fixture from a skeleton by a fixing member provided below the upper end of a guide rail backing frame while securing the strength of the hooking metal fitting.SOLUTION: Included are a hook metal fixture 7 of a bracket 3, a guide rail base frame 8, and a connecting member 9. The connecting member 9 has a face 90 and an extension 9B extending downward from the lower end of the face 90. The face 90 of the connecting member 9 is connected to the face 70 of the hooking bracket 7 in a contact manner, and the extension 9B of the connecting member 9 extends below the upper end of the guide rail base frame 8. The extension 9B of the connecting member 9 and a width surface 93 and a width surface 80 of the guide rail base frame 8 are fixed to a wooden post 16 as the base of the frame by a screw S1, with the width surface 93 of the extension 9B of the connecting member 9 in contact with the width surface 80 of the guide rail base frame 8.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The present invention relates to a fixing structure of a hook fitting in a shutter.

Background Art

[0002] A window shutter is installed on the outdoor side of a window sash and is a shutter that opens and closes the outdoor part of a window opening. The window shutter includes a three-sided frame composed of left and right guide rails provided in a protruding manner from the building outer wall and a lower frame connecting the lower end parts of the left and right guide rails, and left and right brackets provided in a protruding manner from the building outer wall and positioned above the left and right guide rails, a winding shaft spanned between the left and right brackets, a shutter curtain connected to the winding shaft and opening and closing the outdoor part of the window opening, and a shutter case provided in a protruding manner on the building outer wall above the opening. A case assembly is formed by the left and right brackets, the winding shaft, the shutter curtain wound around the winding shaft, and the shutter case. The case assembly is provided in a protruding manner on the building outer wall above the opening by attaching the left and right brackets to left and right hook fittings fixed to the building body.

[0003] Conventionally, as shown in FIG. 11, a plate-shaped hook fitting 7' is fixed to a building body (a fixed element capable of bearing the weight of the case assembly) with screws. For example, in the case of retrofitting a window shutter, depending on the site, the building base (for example, a wooden pillar) for fixing the window sash frame may not extend above the opening, and there may be no fixed element for fixing the screws for attaching the hook fitting 7'. Also, when finishing processes such as painting or tiling are performed on the outer wall, there is a desire to avoid drilling holes with the screws for fixing the hook fitting 7'.

[0004] Patent Document 1 discloses an attachment structure for a window shutter in which the outer wall panel is not affected by the fixing of the attachment fitting (hooking fitting). However, since the weight of the case assembly acts on the attachment fitting via the bracket, depending on the shutter weight, the attachment fitting formed from a single plate may be deformed. [Patent Document 1] Japanese Patent Application Laid-Open No. 2000-110460 [Disclosure of the Invention] [Problems to be Solved by the Invention]

[0005] An object of the present invention is to support the hooking fitting from the housing with a fixing member provided below the upper end of the guide rail base frame while ensuring the strength of the hooking fitting. [Means for Solving the Problems]

[0006] The technical means adopted by the present invention is a hooking fitting for the left and right brackets of the shutter, a guide rail base frame, a connecting member, and is provided with The connecting member includes a face portion and an extending portion extending downward from the lower end of the face portion. The face portion of the connecting member is connected in a state of abutting against the face portion of the hooking fitting. The extending portion of the connecting member extends below the upper end of the guide rail base frame. With the contact surface of the extending portion of the connecting member abutting against the contact surface of the guide rail base frame, the extending portion of the connecting member and the contact surface of the guide rail base frame are fixed to the housing by a fixing member. It is a fixing structure of the hooking fitting in the shutter.

[0007] In one aspect, the hooking fitting includes an extending portion extending downward from the lower end of the face portion. The extending portion of the hooking fitting is connected to the guide rail base frame. In one aspect, the extending portion of the hooking fitting is connected to the extending portion of the connecting member.

[0008] In one aspect, the guide rail base frame includes a pair of projecting pieces rising from both ends in the width direction of the finding surface, The extending portion of the connecting member includes a pair of projecting pieces rising from both ends in the width direction of the finding surface, The extending portion of the hooking fitting includes a finding surface and a projecting piece rising from the widthwise end of the finding surface, With one projecting piece of the extending portion of the connecting member abutting against the inner surface of one projecting piece of the guide rail base frame and the projecting piece of the extending portion of the hooking fitting abutting against the outer surface of the one projecting piece of the guide rail base frame, the three projecting pieces are connected by a fastening member. In one aspect, the other projecting piece of the extending portion of the connecting member abuts against or is close to the inner surface of the other projecting piece of the guide rail base frame.

[0009] In one aspect, the hooking fitting includes projecting pieces rising from both sides in the width direction of the face portion, The face portion of the connecting member includes a projecting piece rising from the widthwise end of the face portion, The face portion of the connecting member is connected by a fastening member in a state of abutting against the face portion of the hooking fitting. The projecting piece of the connecting member is connected by a fastening member in a state of abutting against one projecting piece of the face portion of the hooking fitting.

[0010] In one aspect, the lower part of the other projecting piece of the face portion of the hooking fitting extends beyond the face portion to the lower end of the finding surface of the extending portion. The other projecting piece of the face portion faces so as to straddle between the lower end of the one projecting piece of the face portion and the upper end of the other projecting piece of the extending portion of the connecting member.

[0011] In one aspect, the extending portion of the connecting member includes a pair of projecting pieces rising from both ends in the width direction of the finding surface. The upper end portion of one of the projecting pieces of the extending portion of the connecting member is located above the upper end of the other projecting piece of the extending portion, and the upper end portion faces so as to straddle between the lower end of the projecting piece of the facing surface of the connecting member and the upper end of the other projecting piece of the extending portion of the connecting member.

[0012] In one aspect, the rising dimension of one of the projecting pieces of the extending portion of the connecting member is larger than the rising dimension of the other projecting piece, and a support piece for the lower edge of the bracket is formed on the tip side of the upper end of the one projecting piece. In one aspect, a support piece on the proximal end side of the bracket is formed at the upper end of the facing surface of the connecting member.

Advantages of the Invention

[0013] In the present invention, the hook fitting of the bracket is fixed to the housing with a fastening member at a position below the upper end of the guide rail base frame via the connecting member and the guide rail base frame. Therefore, regardless of the type of the housing at the portion where the main body of the hook fitting is located (the portion above the guide rail base frame), the hook fitting can be attached to the housing. Examples of the element to be fixed by the fastening member include a housing base (for example, a wooden column) to which a screw of the guide rail base frame is fixed and a window sash frame. Since the hook fitting of the bracket and the connecting member are connected in a state where their facing surfaces are in contact with each other, the strength is greater than in the case where they are formed from a single plate body. Furthermore, the strength can be improved by connecting the extending portion extending downward from the lower end of the facing surface of the hook fitting to the extending portion of the guide rail base frame and the connecting member. Furthermore, the strength can be improved by integrally forming projecting pieces rising from the facing surface on the hook fitting and the connecting member.

Brief Description of the Drawings

[0014]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Embodiments for Carrying Out the Invention

[0015] Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a longitudinal sectional view of a window shutter, and the window shutter is mounted on the outdoor side of a window sash WS attached to an opening of a building. The window shutter includes a three-sided frame composed of left and right guide rails 1 and a lower frame 2 provided in a protruding manner on the building outer wall W, left and right brackets 3 provided in a protruding manner on the building outer wall W above the three-sided frame, a winding shaft 4 spanned between the left and right brackets 3, a shutter curtain 5 (the wound state is indicated by a two-dot chain line circle) whose upper end is connected to the winding shaft, and a shutter case 6 that houses the winding shaft 4 and the shutter curtain 5 wound around the winding shaft 4. When the shutter curtain 5 is wound around the winding shaft 4, the opening is opened, and when the shutter curtain 5 is drawn out from the winding shaft 4, both end portions in the width direction are guided by the left and right guide rails 1, and the seat plate 50 at the lower end of the shutter curtain 5 abuts against the lower frame 2 to close the opening. In one aspect, the window shutter according to the present embodiment is a retrofittable window shutter and is provided on the outdoor side of an existing window sash WS.

[0016] The left and right brackets 3 are respectively attached to left and right hanging brackets 7 attached to the building body. In the present embodiment, a case assembly or a case assembly of the window shutter is formed from the left and right brackets 3, the winding shaft 4 spanned between the left and right brackets 3, a plurality of angle members 15 spanned between the left and right brackets 3, the shutter curtain 5 wound around the winding shaft 4, and the shutter case 6, and the case assembly is integrally attached to the building body (hanging brackets 7) (see FIG. 3).

[0017] The bracket 3 is composed of a face portion 30, a rear piece 31 bent and formed at the rear end of the face portion 30, an upper piece 32 bent and formed at the upper end, a tip piece 33 bent and formed at the tip, and a lower edge 34. An inclined piece 35 bent in an L shape is formed at the lower end of the rear piece 31. The lower edge 34 according to the present embodiment is stepped. The bracket 3 is obtained by bending a steel plate of a predetermined shape. Note that the configuration of the bracket 3 is the same as that of the conventional one, and reference can be made to FIG. 11.

[0018] The left and right guide rails 1 are respectively attached to the left and right guide rail base frames 8 attached to the building body. The guide rail 1 and the guide rail base frame 8 according to the present embodiment are made of aluminum. The guide rail base frame 8 is a long member extending in the height direction. As shown in FIG. 7, it includes a finding face portion 80, an inner prospecting piece 81 rising from the inner end in the width direction of the finding face portion 80, and an outer prospecting piece 82 rising from the outer end in the width direction of the finding face portion 80. The rising dimension of the outer prospecting piece 82 is larger than the rising dimension of the inner prospecting piece 81. A folded-back L-shaped fitting piece 83 is formed at the tip of the outer prospecting piece 82. A second finding piece 84 extending in the finding direction is provided from the tip of the inner prospecting piece 81, and a connecting piece 85 extending in the prospecting direction is formed at the tip of the second finding piece 84.

[0019] Inside the building body where the window sash WS is provided, a body base (for example, a wooden column) 16 to which the window sash frame is fixed is located. The guide rail base frame 8 is fixed to the body base (for example, a wooden column) 16 with a plurality of screws S1 at intervals in the height direction with the finding face portion 80 in contact with the outer wall of the body (see the right figure of FIGS. 1 and 2).

[0020] The guide rail 1 is a long member extending in the height direction. As shown in FIG. 7, it has an opposed first side 10, a second side 11, and a bottom side 12 connecting the first side 10 and the second side 11, and a guide groove for receiving the widthwise end of the shutter curtain is formed. The first side 10 extends beyond the bottom side, and a fitting receiving portion 13 is formed at the tip side of the extended side, which is adapted to be locked to the fitting piece 83 of the guide rail base frame 8. A connecting piece 14 extending in the expected direction stands up and is formed on the second side 11, and is adapted to be overlapped with the connecting piece 85 of the guide rail base frame 8 and fixed with screws.

[0021] As shown in FIG. 9, the hook fitting 7 to which the bracket 3 of the window shutter is connected is integrally formed from a main body 7A having a substantially vertically long rectangular shape in front view and a lower side extension 7B extending downward from one side (outer side) in the width direction at the lower end of the main body 7A. When the main body 7A of the hook fitting 7 is attached to the building body, it is located above the window sash WS (in FIG. 1, the upper part of the window sash WS is located slightly below the upper end 86 of the guide rail base frame 8), similar to the conventional hook fitting 7' (see FIG. 11). As described above, the guide rail base frame 8 is fixed to the building body (for example, a wooden column 16 which is the building body base) with a plurality of screws S1. However, depending on the site, there may be no fixed element (for example, a wooden column 16) capable of bearing the strength inside the building body at the height position of the main body 7A of the hook fitting 7.

[0022] The hook fitting 7 according to this embodiment is fixed to the building structure at a position below the main body 7A via the connecting member 9 and the guide rail base frame 8. More specifically, the main body 7A of the hook fitting 7 is connected to the upper part 9A of the connecting member 9, and the lower extension part 9B which is the lower part of the connecting member 9 is attached to the guide rail base frame 8 by a screw S1. This screw S1 is also used as the upper screw S1 among a plurality of screws S1 for fixing the guide rail base frame 8 to the structure (for example, a wooden column 16 which is the base of the structure). That is, the hook fitting 7 is fixed to the structure (for example, a wooden column 16 which is the base of the structure) by the screw S1 via the connecting member 9. Further, the lower extension part 7B of the hook fitting 7 is connected to the guide rail base frame 8. Details of the fixing structure of the hook fitting 7 will be described later.

[0023] The main body 7A of the hook fitting 7 includes a facing part 70 which is a finding part, an inner projecting piece 71 rising from the inner end in the width direction of the facing part 70, and an outer projecting piece 72 rising from the outer end in the width direction of the facing part 70. The lower end of the inner projecting piece 71 of the main body 7A coincides with the lower end 701 of the facing part 70, but the upper end does not reach the upper end 700 of the facing part 70, so that it does not interfere with the upper angle member 15 when the case assembly is attached to the hook fitting 7. The upper end of the outer projecting piece 72 of the main body 7A coincides with the upper end 700 of the facing part 70, the lower part 720 extends downward beyond the lower end 701 of the facing part 70, and the lower end of the outer projecting piece 72 coincides with the lower end of the lower extension part 7B. The main body 7A has a U-shaped cross section including the facing part 70, the inner projecting piece 71, and the outer projecting piece 72, and the strength is improved compared with the hook fitting 7'(see FIG. 11) composed only of the facing part.

[0024] The lower extension part 7B of the hook fitting 7 includes a narrow finding surface part 73 compared to the surface part 70, and an inner projected piece 74 rising from the inner end in the width direction of the finding surface part 73. Also, the lower part 720 of the outer projected piece 72 serves as the outer projected piece of the lower extension part 7B. The lower extension part 7B has a U-shaped cross-section formed by the finding surface part 73, the inner projected piece 74, and the outer projected piece (the lower part 720 of the outer projected piece 72), and the strength is improved by bending both left and right ends in the width direction of the finding surface part 73. The outer projected piece 72 of the hook fitting 7 faces across the lower end of the inner projected piece 71 of the main body 7A and the upper end of the inner projected piece 74 of the lower extension part 7B, and the strength of the hook fitting 7 composed of the main body 7A and the narrow lower extension part 7B relative to the main body 7A is improved.

[0025] In the hook fitting 7 according to the present embodiment, the rising dimensions of the inner projected piece 71 of the main body 7A and the outer projected piece 72 (including the lower part 720) are the same, and the rising dimension of the inner projected piece 74 of the lower extension part 7B is larger than the rising dimensions of the inner projected piece 71 and the outer projected piece 72 (see Fig. 9). A latching piece 75 is formed at the upper end of the surface part 70 of the main body 7A, that is, at the upper end of the hook fitting 7.

[0026] The fixing structure of the hook fitting 7 in the window shutter according to the present embodiment includes the hook fitting 7, a guide rail base frame 8, and a connecting member 9. The hook fitting 7 according to the present embodiment is fixed to the building structure at a position below the main body 7A via the connecting member 9 and the guide rail base frame 8. The hook fitting 7 and the connecting member 9 according to the present embodiment are made of steel. Hereinafter, the configuration of the connecting member 9 and the fixing structure of the hook fitting 7 according to the present embodiment will be described in detail.

[0027] As shown in FIG. 10, the connecting member 9 is integrally formed from an upper portion 9A and a lower portion, i.e., a lower extension 9B, that extends downward from the upper portion 9A. As shown in FIGS. 5 and 8, the upper portion 9A of the connecting member 9 is connected to the main body 7A of the hook fitting 7, and the lower extension 9B of the connecting member 9 is attached to the guide rail base frame 8 with screws S1. The lower extension 9B of the connecting member 9 and the guide rail base frame 8 are fixed to the housing (e.g., the wooden column 16 which is the housing base) by the screws S1. Further, the lower extension 9B of the connecting member 9 and the lower extension 7B of the hook fitting 7 are connected by screws S4 (in this embodiment, they are connected together with the guide rail base frame 8).

[0028] As shown in FIG. 10, the upper portion 9A of the connecting member 9 includes a facing portion 90 which is a finding surface portion, an inner projecting piece 91 that rises from the inner end in the width direction of the facing portion 90, and an upper inclined piece 92 formed by bending the upper end of the facing portion 90 in an inclined shape. A lower extension 9B is integrally formed at the outer portion in the width direction of the lower end 900 of the facing portion 90. The upper end of the inner projecting piece 91 coincides with the base end of the upper inclined piece 92, and the lower end coincides with the lower end 900 of the facing portion 90.

[0029] The lower extension 9B of the connecting member 9 has a U-shaped cross section including a finding surface portion 93 with a narrower width than the facing portion 90, an inner projecting piece 94 that rises from the inner end in the width direction of the finding surface portion 93, and an outer projecting piece 95 that rises from the outer end in the width direction of the finding surface portion 93. By bending both the left and right ends in the width direction of the finding surface portion 93, the strength is improved. In the illustrated aspect, the center line in the width direction of the finding surface portion 93 of the lower extension 9B coincides with the outer end 901 of the facing portion 90 of the upper portion 9A.

[0030] The upper end of the inner projection piece 94 of the lower extension part 9B of the connecting member 9 is close to the lower end 900 of the face part 90, and the lower end of the inner projection piece 94 coincides with the lower end of the finding face part 93. The upper end of the outer projection piece 95 extends upward beyond the lower end 900 of the face part 90, and the upper end part 950 faces the lower part of the inner projection piece 91. The outer projection piece 95 faces so as to straddle the upper end of the inner projection piece 94 and the lower end of the inner projection piece 91, and the strength of the connecting member 9 composed of the upper part 9A and the lower extension part 9B having a narrow width with respect to the upper part 9A is improved.

[0031] In the connecting member 9, the face part 90 of the upper part 9A and the finding face part 93 of the lower extension part 9B are formed from the same face part. The rising dimensions of the inner projection piece 91 with respect to the face part 90, the rising dimension of the upper inclined piece 92, and the rising dimension of the inner projection piece 94 with respect to the finding face part 93 are the same. The rising dimension of the outer projection piece 95 with respect to the face part 90 and the finding face part 93 is larger than the rising dimensions of the inner projection piece 91, the upper inclined piece 92, and the inner projection piece 94. A support piece 96 is integrally formed at the tip side part of the upper end of the outer projection piece 95. In the illustrated embodiment, the support piece 96 is located outside the outer end 901 of the face part 90 of the upper part 9A.

[0032] FIG. 8 shows a hook fitting assembly in which the hook fitting 7 and the connecting member 9 are connected and integrated. The width dimension and height dimension of the face part 90 of the upper part 9A of the connecting member 9 are smaller than the width dimension and height dimension of the face part 70 of the main body 7A of the hook fitting 7. The connecting member 9 abuts such that the face part 90 of the upper part 9A overlaps at a position closer to the inside of the lower part of the face part 70 of the main body 7A of the hook fitting 7. The inner projection piece 91 abuts against the inner surface of the lower part of the inner projection piece 71. With the lower end of the face part 90 coinciding with the lower end of the face part 70, the face part 70 of the hook fitting 7 and the face part 90 of the connecting member 9 are connected by a screw S2, and the inner projection piece 71 and the inner projection piece 91 are connected by a screw S3, thereby being connected to the hook fitting 7. The screw S2 is screwed from the face part 70 of the hook fitting 7 toward the face part 90 of the connecting member 9, and the head is flush with the face part 70. The screw S2 does not fix the face part 70 of the hook fitting 7 to the housing.

[0033] The height dimension of the upper part 9A of the connecting member 9 is determined such that, in a state where it is connected to the hook fitting 7, the distance between the upper inclined piece 92 at the upper end and the upper end of the hook fitting 7 is a pre-designed distance. Referring to FIGS. 8 and 11, in the prior art, the inclined piece integrally formed on the hook fitting 7' is replaced in this embodiment by the upper inclined piece 92 integrally formed on the connecting member 9 fixed at a predetermined position of the hook fitting 7. Further, the height position of the support piece 96 at the upper end of the outer projected piece 95 of the connecting member 9 is such that it coincides with the height of the stepped lower edge 34 portion 340 of the surface portion 30 of the bracket 3 when the case assembly is attached to the hook fitting 7.

[0034] In a state where the connecting member 9 is connected to the hook fitting 7, the lower extension 9B of the connecting member 9 is adjacent to the inside of the lower extension 7B of the hook fitting 7, and there is a predetermined gap (corresponding to the thickness of the outer projected piece 82 of the guide rail base frame 8) between the inner projected piece 74 of the lower extension 7B and the outer projected piece 95 of the lower extension 9B and they are spaced apart. The lower end of the lower extension 9B of the connecting member 9 and the lower end of the lower extension 7B of the hook fitting 7 are at the same height position.

[0035] FIGS. 5 and 6 are views showing a state where a hook fitting assembly composed of the hook fitting 7 and the connecting member 9 is attached to the upper end portion of the guide rail base frame 8. The width dimension of the lower extension 9B of the connecting member 9 (the dimension between the outer surfaces of the outer projected piece 95 and the inner projected piece 94) is slightly smaller than the width dimension of the groove portion of the guide rail base frame 8 (the dimension between the inner surfaces of the outer projected piece 82 and the inner projected piece 81). The hook fitting assembly inserts the lower lower extension 9B into the groove portion of the guide rail base frame 8 from above, and in a state where the finding surface portion 93 of the lower lower extension 9B is abutted against the bottom of the groove portion of the guide rail base frame 8 (that is, the inner surface of the finding surface portion 80), the finding surface portion 93 is attached to the finding surface portion 80 with a screw S1, and the screw S1 is fixed to a housing (for example, a wooden column 16 which is a housing base).

[0036] Between the outer projection piece 95 of the lower extension part 9B of the hook fitting assembly and the inner projection piece 74 of the lower extension part 7B, the outer projection piece 82 of the guide rail base frame 8 is sandwiched. The outer projection piece 95 of the lower extension part 9B abuts against the inner surface of the outer projection piece 82 of the guide rail base frame 8, and the inner projection piece 74 of the lower extension part 7B abuts against the outer surface of the outer projection piece 82 of the guide rail base frame 8. In this state, the three projection pieces 74, 82, and 95 are connected by a screw S4.

[0037] The rising dimension of the outer projection piece 95 of the lower extension part 9B of the connecting member 9 is larger than the rising dimension of the inner projection piece 74 of the lower extension part 7B. The tip side part of the outer projection piece 95 of the lower extension part 9B is connected by a screw S5 in a state of abutting against the inner surface of the outer projection piece 82 of the guide rail base frame 8 (see Fig. 6).

[0038] As shown in Figs. 5 and 6, the hook fitting assembly is fixed to the housing (for example, the wooden column 16 which is the housing base) by a screw S1 at a position below the upper end 86 of the guide rail base frame 8. More specifically, the lower extension parts 7B and 9B located below the hook fitting assembly extend below the upper end 86 of the guide rail base frame 8. In a state where the finding surface part 93 of the lower extension part 9B abuts against the finding surface part 80 of the guide rail base frame 8, the finding surface part 93 of the lower extension part 9B and the finding surface part 80 of the guide rail base frame 8 are fixed to the housing (for example, the wooden column 16 which is the housing base) by a screw S1. Further, the outer projection piece 95 of the lower extension part 9B, the inner projection piece 74 of the lower extension part 7B, and the outer projection piece 82 of the guide rail base frame 8 are fixed by a screw S4. The lower end 701 of the surface part 70 of the main body 7A of the hook fitting 7 may abut against the upper end 86 of the guide rail base frame 8.

[0039] As shown in FIGS. 1 and 2 on the left, in the hook fitting assembly according to the present embodiment, the portion above the upper end 86 of the guide rail base frame 8, that is, the main body 7A of the hook fitting 7 is not fixed to the housing (the wooden pillar 16 which is the housing base). (In the illustrated aspect, the wooden pillar 16 does not extend up to the height position above the opening and there is no element to be fixed). In FIG. 5, four screws S6 are provided on the surface portion 70 of the main body 7A of the hook fitting 7. However, these four screws S6 are for fixing the back plate, for example, when there is a gap between the surface portion 70 of the main body 7A of the hook fitting 7 and the outer wall, and do not bear the force acting on the hook fitting 7.

[0040] A method of fixing the hook fitting 7 according to the present embodiment will be described. In one aspect, a hook fitting assembly formed by connecting the hook fitting 7 and the connecting member 9 is prepared in advance (for example, at a factory) and carried into the site as the hook fitting assembly.

[0041] The lower extension portion 9B of the hook fitting assembly is inserted into the groove portion of the guide rail base frame 8 from above, and the finding surface portion 93 of the lower extension portion 9B below is brought into contact with the bottom of the groove portion of the guide rail base frame 8 (that is, the inner surface of the finding surface portion 80). At this time, between the outer expected piece 95 of the lower extension portion 9B of the hook fitting assembly and the inner expected piece 74 of the lower extension portion 7B, the outer expected piece 82 of the guide rail base frame 8 is slid and sandwiched. The outer expected piece 95 of the lower extension portion 9B is in contact with the inner surface of the outer expected piece 82 of the guide rail base frame 8, and the inner expected piece 74 of the lower extension portion 7B is in contact with the outer surface of the outer expected piece 82 of the guide rail base frame 8. In this state, the three expected pieces 74, 82, and 95 are connected by the screw S4. Further, the tip side portion of the outer expected piece 95 of the lower extension portion 9B is connected by the screw S5 in a state of being in contact with the inner surface of the outer expected piece 82 of the guide rail base frame 8. When attaching the hook fitting assembly to the upper end portion of the guide rail base frame 8, the outer expected piece 82 of the guide rail base frame 8 is slid and inserted into the gap between the inner expected piece 74 of the lower extension portion 7B and the outer expected piece 95 of the lower extension portion 9B, so that the gap functions as a guide and the attachment workability can be improved.

[0042] Positioned on the left and right outer walls W of the window opening, the finding surfaces 80 of the left and right guide rail base frames 8 are brought into contact with the outer wall W, and a plurality of screws S1 are fixed to the housing (for example, the wooden pillar 16 which is the housing base), thereby attaching the guide rail base frame 8 to the outer wall W in a protruding manner. At this time, in the upper part of the guide rail base frame 8, the finding surface 93 of the lower lower extension part 9B is brought into contact with the bottom of the groove part of the guide rail base frame 8 (that is, the inner surface of the finding surface 80), and the finding surface 93 is attached to the finding surface 80 with the screw S1, and the screw S1 is fixed to the housing (for example, the wooden pillar 16 which is the housing base). The surface 70 of the hook fitting 7 in the hook fitting assembly is in contact with or close to the upper outer wall W of the left and right guide rail base frames 8 at a preset predetermined height position. In addition, after fixing the part excluding the upper part of the guide rail base frame 8 to the housing (for example, the wooden pillar 16 which is the housing base) with the screw S1, the hook fitting assembly may be fixed to the upper part of the guide rail base frame 8.

[0043] As shown in FIGS. 3 and 4, with respect to the left and right hook fitting assemblies fixed to the housing, the case assembly (the left and right brackets 3, the winding shaft 4 spanned between the left and right brackets 3, a plurality of angle members 15 spanned between the left and right brackets 3, the shutter curtain 5 wound around the winding shaft 4, and the shutter case 6) is supported from the housing by attaching the left and right brackets 3.

[0044] In a state where the left and right brackets 3 are attached to the hooking fitting assembly, the latching piece 75 at the upper end of the face portion 70 of the main body 7A of the hooking fitting 7 is latched to the upper end portion of the rear piece 31 of the bracket 3 (and the upper angle member 15), and the inclined piece 35 at the lower end of the rear piece 31 of the bracket 3 is fixed with a screw S7 in a state of abutting against the upper inclined piece 92 at the upper end of the face portion 90 of the connecting member 9 of the hooking fitting assembly, and the portion 340 of the lower edge 34 of the face portion 30 of the bracket 3 is placed on the support piece 96 of the connecting member 9 of the hooking fitting assembly. By being supported by the support piece 96 at a position where the lower edge 34 of the face portion 30 of the bracket 3 is separated from the housing, the bracket 3 is configured to bear the force for rotating so as to fall down.

Explanation of Reference Numerals

[0045] 3 Bracket 34 Lower edge 340 Portion of the lower edge 7 Hooking fitting 7A Main body 70 Face portion 71 Inner projecting piece (one of the projecting pieces) 72 Outer projecting piece (the other projecting piece) 7B Lower extending portion (extending portion) 73 Finding face portion (finding face) 74 Inner projecting piece (projecting piece) 720 Lower portion of the outer projecting piece 8 Guide rail base frame 80 Finding face portion (finding face) 81 Inner projecting piece (the other projecting piece) 82 Outer projecting piece (one of the projecting pieces) 86 Upper end of the guide rail base frame 9 Connecting member 9A Upper portion 90 Face portion 91 Inner projecting piece (projecting piece) 92 Upper side Inclined piece 9B Lower extending portion (extending portion) 93 Finding face portion (finding face) 94 Inner projecting piece (the other projecting piece) 95 Outer projection piece (one of the projection pieces) 96 Support piece 16 Wooden pillar as the body base (body) S1 Screw (fastening member) S2 Screw (fastening member) S3 Screw (fastening member) S4 Screw (fastening member)

Claims

1. A hooking fitting for brackets on the left and right of a shutter, a guide rail base frame, a connecting member, characterized by comprising: the connecting member includes a face portion and an extending portion extending downward from the lower end of the face portion; the face portion of the connecting member is connected in a state of abutting against the face portion of the hooking fitting; the extending portion of the connecting member extends downward from above the upper end of the guide rail base frame; in a state where the contact surface of the extending portion of the connecting member abuts against the contact surface of the guide rail base frame, the contact surface of the extending portion of the connecting member and the guide rail base frame are fixed to the housing by a fastening member; A fixing structure of a hooking fitting in a shutter.

2. The hooking fitting includes an extending portion extending downward from the lower end of the face portion, and the extending portion of the hooking fitting is connected to the guide rail base frame. The fixing structure of the hooking fitting in the shutter according to Claim 1.

3. The extending portion of the hooking fitting is connected to the extending portion of the connecting member. The fixing structure of the hooking fitting in the shutter according to Claim 2.

4. The guide rail base frame includes a pair of raised pieces rising from both ends in the width direction of the contact surface, the extending portion of the connecting member includes a pair of raised pieces rising from both ends in the width direction of the contact surface, the extending portion of the hooking fitting includes a contact surface and a raised piece rising from the width direction end of the contact surface, one of the raised pieces of the extending portion of the connecting member abuts against the inner surface of one of the raised pieces of the guide rail base frame, and the raised piece of the extending portion of the hooking fitting abuts against the outer surface of one of the raised pieces of the guide rail base frame, and the three raised pieces are connected by a fastening member. The fixing structure of the hooking fitting in the shutter according to Claim 3.

5. The hooking fitting includes raised pieces rising from both sides in the width direction of the face portion, the face portion of the connecting member includes raised pieces rising from the width direction ends of the face portion, the face portion of the connecting member is connected by a fastening member in a state of abutting against the face portion of the hooking fitting, the raised piece of the connecting member is connected by a fastening member in a state of abutting against one of the raised pieces of the face portion of the hooking fitting. The fixing structure of the hooking fitting in the shutter according to any one of Claims 1 to 4.

6. The lower part of the other projected piece of the facing surface of the engaging fitting extends beyond the facing surface to the lower end of the finding surface of the extending part. The other projected piece of the facing surface faces so as to straddle between the lower end of the one projected piece of the facing surface and the upper end of the other projected piece of the extending part of the connecting member. The fixing structure of the engaging fitting in the shutter according to claim 5 (limited to the dependent claims of claim 4).

7. The extending part of the connecting member is provided with a pair of projected pieces rising from both ends in the width direction of the finding surface. The upper end part of the one projected piece of the extending part of the connecting member is located above the upper end of the other projected piece of the extending part. The upper end part faces so as to straddle between the lower end of the projected piece of the facing surface of the connecting member and the upper end of the other projected piece of the extending part of the connecting member. The fixing structure of the engaging fitting in the window shutter according to claim 6.

8. The rising dimension of the one projected piece of the extending part of the connecting member is larger than the rising dimension of the other projected piece. A support piece of the lower edge of the bracket is formed on the tip side of the upper end of the one projected piece. The fixing structure of the engaging fitting in the window shutter according to claim 7.

9. A support piece on the base end side of the bracket is formed at the upper end of the facing surface of the connecting member. The fixing structure of the engaging fitting in the window shutter according to any one of claims 1 to 8.

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