JP2007051488A - Shutter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a shutter capable of preventing sounding when opening and closing the shutter. <P>SOLUTION: This shutter has a shutter box 4 storing a winding part 3 hoisting and lowering at least a shutter slat 2 and a guide rail 5 arranged under the shutter box 4 and liftably guiding both side parts of the shutter slat 2. The shutter slat 2 is composed of a plurality of slat members 12 made of an aluminum section connected in the vertical direction. An inwardly curved lower side folding-back part 16 having an expanded curved surface part 15 on the tip is formed on the lower side of the upper slat member among the vertically adjacent slat members. An upper side folding-back part 18 curving outside in response to the lower side folding-back part 16 and having a fixing part 17 slidingly fixed to the expanded curved surface part 15, is formed on the upper side of the lower slat. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a shutter, and more particularly to a technique for preventing noise when a shutter is opened and closed.

  As the shutter, for example, a small and lightweight shutter attached to the outside of a building window (for example, a window sash) is known. This type of shutter includes a shutter box that houses at least a winding unit that winds and lowers the shutter slat, and guide rails that are disposed below the shutter box and guide both sides of the shutter slat so as to be movable up and down. (See Patent Document 1). As the shutter slat, for example, a steel slat member having a thickness of about 0.3 mm is employed.

  Development has been made in which a slat member made of an aluminum shape (extruded shape of aluminum alloy) having excellent durability and design is used as a shutter slat without changing the size of the shutter box. However, the shutter slat currently under development has a problem that abnormal noise is generated in the second half of the closing operation. FIG. 7 is an explanatory diagram for explaining a problem that has occurred in a shutter slat (unpublished) under development.

  In the figure, 10 is a winding shaft of the winding unit, 2 is a shutter slat, and 12 is a slat member. Of the slat members 12 adjacent to each other in the vertical direction, an upper folded portion 26 is formed on the upper side of the lower slat member 12 and is bent to the outdoor side through a reverse curved portion 25 curved inward. An enlarged curved surface portion 27 is formed at the tip of 26. A lower folded portion 28 that is bent and bent inward is formed on the lower side of the upper slat member 12, and a latching portion that slidably latches the enlarged curved surface portion 27 on the lower folded portion 28. 29 is formed. The upper slat member 12 is formed with a restricting portion 30 that covers the upper portion of the upper folded portion 26 and restricts the upward movement of the upper folded portion 26.

JP 2004-176263 A

  In the shutter slat configured as described above, the shutter slat 2 wound around the winding shaft 10 is wound around the winding shaft 10 as shown in FIG. When the lower slat member 12 moves away from the take-up shaft 10 as shown in FIG. 7B from the smallest state of (in this state, the enlarged curved surface portion 27 is shifted away from the latching portion 29). In addition, there is a problem in that the enlarged curved surface portion 27 is displaced into the latching portion 29 due to the downward tensile force, and an abnormal noise (sound) is generated.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a shutter that can prevent noise when the shutter is opened and closed.

  In order to achieve the above object, the invention according to claim 1 of the present invention is characterized in that a shutter box that houses at least a winding part for winding up and down the shutter slat, and a shutter box disposed below the shutter box and disposed of the shutter slat. A guide rail that guides both sides of the slat member so as to be movable up and down, and the shutter slat is composed of a plurality of slat members made of aluminum members connected in the vertical direction. A lower folded portion having an enlarged curved portion at the tip is formed on the lower side, and a curved portion is formed on the upper side of the lower slat. The curved portion is curved outward corresponding to the lower folded portion, and is slid on the enlarged curved portion. An upper folded portion having a latching portion that is freely movable is formed.

  According to a second aspect of the present invention, there is provided a shutter box that houses at least an electric winding portion that winds and lowers the shutter slat, and a guide rail that is disposed below the shutter box and guides both side portions of the shutter slat so as to be movable up and down. The shutter slat is composed of a plurality of aluminum slat members connected in the vertical direction, and is curved inward on the lower side of the upper slat member among the upper and lower adjacent slat members, A latching portion that forms a lower folded portion having an enlarged curved surface portion, is curved outward on the upper side of the lower slat corresponding to the lower folded portion, and is slidably latched on the enlarged curved surface portion An upper folded portion is provided, and a projecting portion projecting upward is provided on the upper folded portion, and the projecting portion is located above the enlarged curved surface portion of the upper slat member. Characterized in that a regulating portion for restricting the upward movement of the parts.

  According to the first aspect of the present invention, there is provided a shutter box that houses at least a winding part that winds and lowers the shutter slat, and a guide rail that is disposed below the shutter box and guides both sides of the shutter slat so as to be movable up and down. The shutter slat is composed of a plurality of aluminum slat members connected in the vertical direction, and is curved inwardly on the lower side of the upper slat member among the upper and lower adjacent slat members and expanded to the tip. A lower folded portion having a curved surface portion is formed, and a latching portion that is curved outwardly corresponding to the lower folded portion on the upper side of the lower slat and is slidably latched on the enlarged curved surface portion. Since the upper folded portion is formed, it is possible to prevent noise when the shutter is opened and closed.

  According to the second aspect of the present invention, a shutter box that houses at least an electric winding part that winds and lowers the shutter slat, and the both sides of the shutter slat that are disposed below the shutter box and that can be raised and lowered are guided. The shutter slat comprises a plurality of aluminum slat members connected in the vertical direction, and is curved inwardly on the lower side of the upper slat member among the slat members adjacent to the upper and lower sides. A lower folded portion having an enlarged curved surface portion at the tip is formed, and the upper side of the lower slat is curved outward corresponding to the lower folded portion, and is slidably latched on the enlarged curved surface portion. An upper folded portion having a stop portion is formed, and a protruding portion protruding upward is provided on the upper folded portion, and the upper curved surface portion of the upper slat member is located above the enlarged curved surface portion. Since the restriction part that restricts the upward movement of the protruding part is provided, it is possible to prevent noise when the shutter is opened and closed, and the upward load generated when an obstacle is caught when the shutter is closed The winding unit can be stopped by transmitting to the winding unit in a short time via the slat.

  The best mode for carrying out the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a perspective view showing a schematic configuration of a shutter according to an embodiment of the present invention, FIG. 2 is a longitudinal sectional view of the shutter, and FIG. 3 is a transverse sectional view of a guide rail portion of the shutter.

  In these drawings, reference numeral 1 denotes a small and lightweight electric shutter mounted on the outside of a building window (for example, a window sash). The shutter 1 is a winding for winding and lowering at least a shutter slat (also called a shutter curtain) 2. A shutter box 4 that houses the portion 3 and a guide rail 5 that is disposed below the shutter box 4 and guides both side portions of the shutter slat 2 so as to be movable up and down.

  Moreover, the shutter 1 of this embodiment is provided with the frame (it is also called a shutter frame) 6 attached to the housing of a building. The frame body 6 includes left and right vertical frames 6a and 6a made of aluminum, and an upper frame (also called a top plate) 6b spanned between the vertical frames 6a and 6a and assembled by screws. It consists of 6c (also referred to as “masa”) and a lower frame (also referred to as “draining”) 6d.

  The frame (shutter frame) 6 of this embodiment also has a sash frame 6. That is, the vertical frame 6a also serves as the sash vertical frame 7a, the middle frame 6c serves as the sash upper frame 7b, and the lower frame 6d serves as the sash lower frame 7c. Inside the sash frame 7 constituted by the vertical frame 7a, the middle frame 7b and the lower frame 7c, sliding type inner and outer shojis 8a and 8b are attached so as to be slidable. The frame (shutter frame) 6 may be configured separately from the sash frame 7.

  The shutter box 4 includes an upper frame (top plate 6b), a middle frame 6c and left and right vertical frames 6a, 6a, a frame portion 4a, a front cover 9a provided to cover the front surface of the frame portion 4a, The front cover 9a is mainly composed of side covers 9b and 9b provided so as to cover both the left and right side surfaces of the front cover 9a. The guide rail 5 is made of aluminum and is detachably attached to the front surface of the vertical frame 6a by screws or the like.

  The winding unit 3 includes a winding shaft 10 that winds the shutter slat 2 so that the shutter slat 2 can be wound up and down, and an electric motor 11 as a drive unit that rotationally drives the winding shaft 10. In the present embodiment, a type of shutter in which the electric motor 11 is incorporated in the winding shaft 10 is shown, but the present invention is not limited to this. The shutter includes a switch (not shown) for switching between opening and closing.

  FIG. 4 is a cross-sectional view showing a winding state of the shutter slat in the winding unit, FIG. 5 is an explanatory diagram for explaining the movement of the slat member, and FIG. 6 is a mechanism for transmitting a load when hitting an obstacle to the winding unit. It is explanatory drawing demonstrated. As shown in these drawings, the shutter slat 2 is formed by connecting a plurality of plate-shaped aluminum slat members 12 that are elongated in the left-right direction in an up-and-down direction via a hinge portion 13 and is at the lower end. It has the end slat 14 which is a board part.

  Of the upper and lower adjacent slat members 12, the lower side of the upper slat member 12 is formed with a lower folded portion 16 that is curved inward (right side in FIG. 5) and has an enlarged curved surface portion 15 at the tip. On the upper side of the slat 12, an upper folded portion having a latching portion 17 that is curved outward (left side in FIG. 5) corresponding to the lower folded portion 16 and is slidably latched on the enlarged curved surface portion 15. A portion 18 is formed. That is, each slat member 12 includes an upper folded portion 18 having an engaging portion 17 at the upper portion and a lower folded portion 16 having an enlarged curved surface portion 15 at the lower portion. A reverse curved portion 19 that is curved inward (right side in FIG. 5) is formed at the base portion of the upper folded portion 18.

  The thickness of the slat member 12 is about 1 mm, for example. Moreover, the slat member 12 is formed in the cross-section circular arc shape so that the indoor side (right side of FIG. 6) may become a concave surface. The lower folded portion 16 is formed in a substantially U-shaped cross section, and an enlarged curved surface portion 15 having a circular cross section whose diameter is approximately twice as large as the thickness of the slat member is formed as a support shaft at the tip. . As shown in FIG. 5A, the outer surface portion (right side portion in the figure) 15a of the enlarged curved surface portion 15 is formed continuously from the outer surface of the lower folded portion 16 in a curved shape. On the other hand, the inner surface portion (left side portion in the drawing) 15b of the enlarged curved surface portion 15 is formed to protrude in an arc shape from the inner surface of the lower frame folded portion 16. A concave curved surface-shaped latching portion 17 having substantially the same (slightly larger) curvature is hooked on the enlarged curved surface portion 16 and engaged (latched) so as to be slidable in the circumferential direction.

  In this manner, the lower slat member 12 swings in the indoor / outdoor direction (swing or rotation) with the enlarged curved surface portion 15 of the upper slat member 12 as a fulcrum in a state where the latching portion 17 is always in sliding contact with the enlarged curved surface portion 15. ) Because it is configured so that the enlarged curved surface part slips into the hooking part due to the downward pulling force like the slat member under development, it is not possible to generate an abnormal noise (sound) In addition, it is possible to prevent noise when the shutter is opened and closed (especially in the second half of the closing operation).

  On the other hand, on the upper part of the end slat 14, as shown in FIG. 6, a hook having a substantially inverted U-shaped cross-section hooked to the tip (enlarged curved surface portion 15) of the lower folded portion 16 of the lowermost slat member 12. Part 20 is formed. When the obstacle 21 is sandwiched between the end slat 14 which is the lower end portion of the shutter slat 2 and the lower frame 6d during the closing operation of the shutter slat 2, an upward load as a reaction force is passed through the shutter slat 2. In order to transmit to the winding unit 3 in a short time and stop the rotation of the winding unit 3, the upper folded portion 18 is provided with a protruding portion 22 protruding upward, and the enlarged curved surface portion 15 in the upper slat member 12. Further, a restricting portion 23 for restricting the upward movement of the protruding portion 22 is provided.

  In addition, by forming the enlarged curved surface portion 15 and the restricting portion 23 apart from each other as described above, aluminum extrusion of the enlarged curved surface portion 15 and the restricting portion 23 is enabled. This is because aluminum extrusion molding becomes difficult when the enlarged curved surface portion 15 and the regulating portion 23 come close to each other.

  The protruding portion 22 and the restricting portion 23 are formed continuously in the longitudinal direction of the slat member 12 (perpendicular to the paper surface of FIG. 4). The restricting portion 23 is formed so as to protrude from the inner surface of the slat member 12 toward the indoor side, and is formed in a curved shape along the turning miracle of the tip of the protruding portion 22 so as to be close to the tip of the protruding portion 22. ing. It is preferable that the restricting portion 23 slightly protrudes indoors from the enlarged curved surface portion 15. In addition, in order to prevent the restricting portion 23 projecting from the shutter slat 2 wound around the outside from entering into the gap between the slat members of the shutter slat 2 wound around the winding shaft 10, the restricting portion 23 is prevented. It is preferable that a baffle plate portion 23a inclined obliquely upward in the outdoor direction from the tip is formed.

  In a state where the shutter slat 2 hangs down substantially vertically, as shown in FIG. 5C, an upward reaction force (load) encircles the protruding portion 22 and the regulating portion 23, and the upper folded portion 18 and the lower side. One or both of the two portions of the folded portion 16 are in contact with each other to transmit the load. As shown in FIG. 5B, when the lower slat member 12 is inclined toward the indoor side (in a state of rolling in the guide rail), the projecting portion 22 surrounded by a circle and the regulating portion 23 come into contact with each other. Transmit load. As shown in FIG. 5D, when the lower slat 12 is inclined outward (in a state of rolling in the guide rail), the upper folded portion 18 and the lower folded portion 16 surrounded by a circle are in contact with each other. Contact and transmit load. When the obstacle 21 is sandwiched when the shutter slat 2 is closed and a load is applied to the winding unit 3 via the shutter slat 2, the electric motor 11 is stopped.

  Further, since the movement in the direction in which the upper and lower slat members 12 approach each other is restricted in this manner, the upper and lower slat members 12 are not disconnected. The upper and lower slat members 12 are connected by sliding the enlarged curved surface portion 15 and the latching portion 17 from one end in the longitudinal direction to engage with each other. In this case, for example, the length of the latching portion 17 is slightly shorter than the length of the lower folded portion 16 and the upper and lower slat members 12 are moved in the longitudinal direction by crimping both ends of the lower folded portion 16. It is regulated not to slip (do not slide).

  With respect to the upper slat member 12, the lower slat member 12 rotates counterclockwise around the enlarged curved surface portion 15 as shown in FIG. The rotation in the counterclockwise direction is restricted by contacting the inner surface, and as shown in (d) of the figure, the rotation in the clockwise direction causes the upper folded portion 18 to contact the lower folded portion 16 to rotate in the clockwise direction. The rotation of is controlled.

  In order to prevent the shutter slat 2 from being detached from the guide groove 5a of the guide rail 5 due to strong wind pressure, as shown in FIGS. A projection 5b is provided, and a stopper member 24 that is hooked on the projection 5b is appropriately provided at the end of the slat member 12.

  According to the shutter 1 configured as described above, at least a shutter box 4 that houses a winding unit 3 that winds and lowers the shutter slat 2, and both side portions of the shutter slat 2 that are disposed below the shutter box 4. The shutter slat 2 includes a plurality of aluminum slat members 12 connected in the vertical direction, and the upper slat member among the vertically adjacent slat members 12 is provided. A lower folded portion 16 that is curved inwardly on the lower side of 12 and has an enlarged curved surface portion 15 at the tip, and is curved outward on the upper side of the lower slat 12 in correspondence with the lower folded portion 16; Since the upper folded portion 18 having the latching portion 17 slidably latched on the enlarged curved surface portion 15 is formed, the sound at the time of opening and closing the shutter Ri can be prevented.

  That is, the lower slat member 12 can swing (turn) indoors and outdoors with the enlarged curved surface portion 15 of the upper slat member 12 as a fulcrum in a state where the latching portion 17 is always in sliding contact with the enlarged curved surface portion 15. Because it is configured, the enlarged curved surface part does not slide down into the hooking part due to downward tensile force like the slat member under development, and there is no abnormal noise (sound) called “packing”, and the shutter It is possible to prevent noise during opening and closing (especially in the second half of the closing operation).

  Further, a protruding portion 22 that protrudes upward is provided on the upper folded portion 18, and a restricting portion 23 that restricts the upward movement of the protruding portion 22 is provided above the enlarged curved surface portion 15 of the upper slat member 12. Therefore, the upward load generated when the obstacle 21 is sandwiched when the shutter is closed can be transmitted to the winding unit 3 in a short time via the shutter slat 2, and the winding unit 3 can be stopped to improve safety. Can be planned. Since the slat member 12 is made of an aluminum extruded shape, it is possible to improve rigidity and design. Moreover, since the thickness of the slat member is kept thin (about 1mm) despite being made of extruded aluminum, the increase in the diameter of the shutter slat can be suppressed, and there is no need to change the size of the shutter box. The shutter slat of this embodiment can also be used for this shutter box.

  As mentioned above, although embodiment thru | or example of this invention was explained in full detail with drawing, this invention is not limited to the said embodiment thru | or example, Various in the range which does not deviate from the summary of this invention. Design changes can be made.

It is a perspective view which shows schematic structure of the shutter which is embodiment of this invention. It is a longitudinal cross-sectional view of the shutter. It is a cross-sectional view of the guide rail portion of the shutter. It is sectional drawing which shows the winding state of the shutter slat in a winding part. It is explanatory drawing explaining the motion of a slat member. It is explanatory drawing explaining the mechanism which conveys the load when it hits an obstruction to a winding part. It is explanatory drawing explaining the malfunction which generate | occur | produced in the shutter slat under development.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Shutter 2 Shutter slat 3 Winding part 4 Shutter box 5 Guide rail 15 Enlarged curved surface part 16 Lower folding | turning part 17 Latching part 18 Upper folding part 22 Projection part 23 Control part

Claims (2)

  A shutter box that accommodates at least a winding unit that winds and lowers the shutter slat; and guide rails that are disposed below the shutter box and guide the both sides of the shutter slat so as to be movable up and down. Consists of a plurality of slat members made of connected aluminum shapes, and of the adjacent slat members in the upper and lower sides, a lower folded portion is formed on the lower side of the upper slat member that is curved inward and has an enlarged curved surface at the tip. And an upper folded portion having a latching portion that is curved outwardly corresponding to the lower folded portion and slidably latched on the enlarged curved surface portion is formed on the upper side of the lower slat. And shutter. A shutter box that houses at least an electric winding unit that winds and lowers the shutter slat; and guide rails that are arranged below the shutter box and guide both sides of the shutter slat so as to be movable up and down. It consists of a plurality of aluminum slat members that are connected in the vertical direction. Of the slat members that are adjacent to each other in the vertical direction, the lower fold is bent inwardly on the lower side of the upper slat member and has an enlarged curved surface at the tip Forming an upper folded portion on the upper side of the lower slat that is curved outward corresponding to the lower folded portion and has a latching portion that is slidably latched on the enlarged curved surface portion. The upper folded portion is provided with a protruding portion that protrudes upward, and the upward movement of the protruding portion is restricted above the enlarged curved surface portion of the upper slat member. Shutter, characterized in that a regulating portion for.

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