JP7122904B2 - shutter device - Google Patents

Description

The present invention relates to a shutter device.

In the shutter device, the winding diameter of the shutter curtain when the opening is fully open may become large at both ends or one end of the winding shaft in the length direction. In particular, when hoisting a shutter curtain that has wind-resistant hooks on both ends of the slats in the width direction, the rising parts of the wind-resistant hooks interfere with each other, and the winding diameter of the slats increases only at the ends where the wind-resistant hooks are attached. swelling), and a difference in winding diameter occurs between the slat ends and the central portion, resulting in deformation of the seat plate when the opening is fully open (bending at the center portion in the width direction of the seat plate and deflection accompanied by sagging). Sometimes.

Deformation of the seat plate in such a fully opened state (specifically, deflection of the central portion of the seat plate in the width direction and deflection accompanied by sagging)
(a) When the opening is fully open, the mismatch between the lintel line and the bottom edge of the seat plate is conspicuous, and the seat plate does not fit neatly, which is undesirable from a design point of view.
(b) If there is a detection member such as an emergency switch inside the lintel, there is a risk that the shutter curtain and these members will interfere with each other at unintended timing.
cause such troubles.

In order to solve this problem, it is conceivable to take measures to correct the gap between the winding diameter at the end of the slat and the winding diameter at the central portion of the slat. Instead, I thought of solving this problem by giving a feature to the mounting structure of the seat plate.

In Patent Document 1, the weight of the slat door causes the central portion of the take-up shaft to flex, and when the slat door is lowered and grounded on the floor, both sides of the seat plate are lifted from the floor. In order to improve the problem, a mounting plate having substantially the same length as the slat door is fixed to the lower end of the slat door, and a large number of vertically elongated holes are provided in the longitudinal direction of this plate so that the vertically elongated holes It is disclosed that it is fixed with a screw using a through hole provided in the seat plate. Although the embodiment according to the present invention and Patent Document 1 are common in that they are provided with an adjustment plate having a longitudinally elongated hole, as is clear from the description of this specification, both have the same purpose, namely, the seat plate. It is related to a completely different technical idea in terms of mounting structure and effects.
Actual Kaihei 4-84595

SUMMARY OF THE INVENTION It is an object of the present invention to provide a shutter device capable of preventing deformation of a seat plate due to a winding diameter gap during slat winding.

The technical means adopted by the present invention to solve such problems is
In a shutter device in which the winding diameter of the shutter curtain when the opening is fully open is large at both ends or one end in the length direction of the winding shaft,
An adjustment plate is vertically connected to the slat at the lower end of the shutter curtain,
The adjusting plate has a widthwise central portion fixed to a widthwise central portion of the rising piece in a state of overlapping with the rising piece vertically rising from the upper surface of the seat plate,
Both widthwise end portions of the adjustment plate are connected to both widthwise end portions of the rising piece so as to allow movement in the height direction,
The shutter curtain is constructed so that the deformation of the adjustment plate is not transmitted to the rising piece while the shutter curtain is raised from the fully closed state of the opening to the fully opened state of the opening.
shutter device.

In the above shutter device, due to the gap between the winding diameter at both ends or one end in the length direction of the winding shaft and the winding diameter at the central portion of the winding shaft, the shutter curtain is moved from the fully closed state to the fully opened state. Although the shutter curtain and the adjusting plate may be deformed while being raised to the state, in the present invention, the adjusting plate and the rising piece of the seat plate are arranged so that both ends of the adjusting plate in the width direction are equal to the width of the rising piece. The deformation of the adjustment plate is prevented from being transmitted to the rising piece by connecting the both end portions in the direction so as to be movable in the height direction.
In one aspect, the shutter device in which the winding diameter of the shutter curtain in the fully opened state is large at both ends or one end in the length direction of the winding shaft is provided with hook portions at both ends in the width direction of the slat. is.

In one aspect, a vertically elongated hole is formed in either one of the corresponding end portions of the widthwise both end portions of the adjustment plate or the widthwise both end portions of the rising piece, and the vertically elongated hole is formed in the other. A pin is provided which is vertically movable within the hole.
In the embodiment described later, longitudinally elongated holes are mainly formed at both ends of the adjusting plate in the width direction, and pins provided on the rising pieces of the seat plate are relatively movable in the adjusting plate in the vertical direction.
In the present invention, when the shutter curtain is in the fully closed state, the seat plate does not flex and is in contact with the floor across the entire width direction. Alternatively, in order to improve the mismatch between the lintel line and the bottom edge of the seat plate when one end is flexed and the shutter curtain is fully open, the length of both ends is increased with respect to the adjustment plate that is affected by the flexure. The seat plate and the adjustment plate are connected by a hole and a pin so as to be relatively movable in the vertical direction. On the other hand, in Patent Document 1, in order to eliminate the bending of the seat plate when the shutter curtain is in the fully closed state, the mounting plate and the seat plate are all formed of vertically elongated holes and through holes when the shutter curtain is in the fully closed state. Since the screws are fixed and the screws do not move in the vertical holes when the shutter curtain is raised and lowered, the technical ideas of the two are completely different.
In one aspect, the rising piece may be formed from a plurality of members. For example, the rising piece may be formed from two members: a first vertical plate-shaped portion integrally rising from the upper surface of the seat plate, and a second vertical plate-shaped portion fixed to the upper portion of the first vertical plate-shaped portion. , a vertically elongated hole may be provided in the second vertical plate portion.

In one aspect, the pin is a stepped screw having a head, a step and a threaded portion, the step being located in the longitudinal hole, the thickness of the step being the thickness of the adjusting plate. and the thickness of the rising strip.
By making the thickness of the stepped portion of the stepped screw slightly larger than the sum of the thickness of the adjustment plate and the thickness of the rising piece, the adjusting plate and the rising piece overlap and are fixed to the head and the screw. As a result, a slight gap is formed between the head and the space of the nut, and while it constrains the rising piece and the adjustment plate between the head and the nut, by giving play in the thickness direction (adjustment the faces of the plate and the riser piece are slightly spaced apart), allowing deformation of the adjustment plate relative to the riser piece.
In one aspect, a widthwise central portion of the adjusting plate and a widthwise central portion of the rising piece are fixed using a screw.

In the present invention, the slat at the lower end and the rising piece of the seat plate are connected via an adjusting plate, and both widthwise end portions of the adjusting plate are arranged in a height direction with respect to both widthwise end portions of the rising piece. By connecting so as to allow movement, the deformation of the adjustment plate that may occur when the shutter curtain is wound is not transmitted to the rising piece, and the seat plate caused by the winding diameter gap when the slat is wound is prevented from being transmitted to the rising piece. to prevent deformation.

It is a front view of the shutter device in a fully closed state. FIG. 4 is a front view of the shutter device in a state close to a fully open state; FIG. 4 is a front view of the shutter device in a state close to a fully open state; It is a figure explaining the structure of the slat of a shutter curtain, and the overlapping state at the time of winding. 2 is a view showing an adjustment plate and a seat plate at the lower end of the shutter curtain of FIG. 1; FIG. (A) is a longitudinal sectional view taken along the line AA of FIG. 5, and (B) is a longitudinal sectional view taken along the line BB of FIG. FIG. 3 is a diagram showing an adjustment plate and a seat plate at the lower end of the shutter curtain of FIG. 2; (A) is a vertical cross-sectional view taken along the line AA of FIG. 7, and (B) is a vertical cross-sectional view taken along the line BB of FIG. 4 is a view showing an adjustment plate and a seat plate at the lower end of the shutter curtain of FIG. 3; FIG. (A) is a vertical cross-sectional view along the line AA in FIG. 9, (B) is a vertical cross-sectional view along the line BB in FIG. 9, and (C) is a vertical cross-sectional view along the line CC in FIG. . It is an enlarged view of FIG. 6(A). It is an enlarged view of FIG. 8(A) and FIG. 10(A). FIG. 10 is a vertical cross-sectional view of an adjustment plate and a seat plate showing another embodiment (an aspect in which a vertical hole is formed in the rising piece of the seat plate); FIG. 10 is a front view of the shutter device showing a state in which the shutter curtain is rolled up, showing a state in which the center portion of the seat plate in the width direction is bent downward (prior art). FIG. 15 is a vertical cross-sectional view taken along the line AA of FIG. 14, showing a winding state (conventional technology, common to the present invention) of the width direction end portion of the shutter curtain. FIG. 15 is a vertical cross-sectional view taken along the line BB of FIG. 14, showing a winding state (common to the prior art and the present invention) of the central portion in the width direction of the shutter curtain. FIG. 2 is a front view of the shutter device showing a state in which the shutter curtain is rolled up, showing a so-called one-side-down state of the seat plate (prior art).

FIG. 1 is a front view of a shutter device in a fully closed state. The shutter device includes a shutter curtain 1 that opens and closes an opening, and a winding shaft that is provided above the opening and to which the upper end of the shutter curtain 1 is attached. 2 (see FIGS. 15 and 16), and guide rails 3 erected at both ends of the opening in the width direction to receive both ends of the shutter curtain in the width direction and guide them in the vertical direction. By rotating the winding shaft 2 in the first direction by the opening/closing machine M, the shutter curtain 1 is wound around the winding shaft 2 to open the opening, and the opening/closing machine M rotates the winding shaft 2 in the second direction. By rotating in the direction, the shutter curtain 1 is drawn out from the winding shaft 2 to close the opening. The shutter curtain 1 is housed in a shutter case 4 while being wound around a winding shaft 2. - 特許庁

The slat 5 is a steel member having a length dimension extending over the width of the opening and a predetermined height dimension. A seat plate 6 is connected to the lower end of the slat 5A at the lower end (FIGS. 1 to 3, etc.), and the slat 5 at the upper end is connected to a suspension 7 fixed to the winding shaft 2. ing.

The slat 5 includes a plate-like body portion 50 (a corrugated plate in the illustrated embodiment, but not limited thereto) extending over the entire width of the opening, and a curved body portion 50 extending in the slat width direction above the body portion 50 . An upper connecting portion 51 and a curved lower connecting portion 52 extending in the slat width direction on the lower side. The shutter curtain 1 is formed by connecting the upper connecting parts 51 of the slats 5 (so-called interlock connection), and the vertically adjacent slats 5 are connected while allowing a certain amount of rotation.

At both ends of the slat 5 in the width direction, steel wind-resistant hooks 10' and end fittings 11 are provided alternately in height (see FIG. 4A). The wind-resistant hook 10 ′ and the end fitting 11 are provided with the hook portion 10 that curves upwardly with respect to the surface formed by the body portion 50 of the slat 5 . The end fitting 11 is, so to speak, a wind-resistant hook in which the hook portion 10 and the slat retaining means are integrated. The wind-resistant hooks 10' and the hook portions 10 of the end metal fittings 11 are in a state in which both ends in the width direction of the shutter curtain 1 are received in the guide rails 3, and when a large surface pressure acts on the shutter curtain 1, the guide rails 3 It is designed to be engaged with the inner engaged portion to resist the surface pressure.

A winding state of the shutter curtain 1 constructed in this way will be described. Although the shutter curtain 1 is wound in multiple layers on the peripheral surface 20 of the winding shaft 2, the slats 5 forming adjacent windings are in contact with each other over substantially the entire width of the slats 5. As shown in FIG. FIG. 4C shows a mode in which the body portions 50 of the slats 5 are close to each other and the upper connection portions 51 are in contact with each other, and the lower connection portions 52 are in contact with each other. There is also a mode in which the connecting portion 52 contacts the main body portion 50 (see FIG. 16).

Here, since the hook portions 10 are provided at both ends of the shutter curtain 1 in the width direction, the slats 5 forming adjacent windings are arranged at both ends in the width direction of the slats 5 as shown in FIG. In some cases, the rising hook portions 10 are in contact with each other. At this time, the hook portions 10 of the slats 5 adjacent to each other in the radial direction of the winding shaft 2 are in contact with each other, and the main body portion 50 of the slat 5 and the upper side of the slat 5 are in contact with each other. In some cases, the connecting portion 51 and the lower connecting portion 52 are separated from each other. At both ends of the shutter curtain 1 in the width direction, the distance between the slats 5 forming each winding layer is increased. The winding diameter at one portion may be larger than the winding diameter at other locations in the width direction.

In the winding state of the shutter curtain 1, the diameter dimension (the distance between the slat 5 forming the winding of the outermost layer and the center of the winding shaft 2) may differ depending on the position in the circumferential direction even if the winding layer is the same. . During winding, the distance from the winding center to the slat 5 can vary depending on the attitude of the slat 5 when riding on the already wound slat 5. - 特許庁For example, even when the slats 5 are in contact with each other, if one slat 5 contacts the other slat 5 in an inclined posture, the distance from the center of the winding shaft 2 to the slat 5 in the inclined posture is local. become significantly larger. In this specification, the roll diameter of the shutter curtain 1 means the average roll diameter of each layer (for example, the average value of the roll diameters of the winding center and each slat of the outermost layer).

15 is a vertical cross-sectional view of the widthwise end of the shutter curtain 1 in the wound state, and FIG. 16 is a vertical cross-sectional view of the widthwise center portion of the shutter curtain 1 in the wound state (prior art). be. 15 and 16, a slat 5' is a slat near the lower end of the shutter curtain 1, and below it are several slats (not shown in FIGS. 15 and 16) and a seat plate (FIGS. 15 and 16). (not shown in the figure) are connected. The slat 5' of FIG. 15 and the slat 5' of FIG. 16 are the same slat. At the end of the slat 5 in the width direction, as shown in FIG. At the central portion, as shown in FIG. 16, the lower ends of the slats 5' are at a second horizontal level L2 lower than the first horizontal level L1.

As a result, as shown in FIG. 14, when the shutter curtain 1 is rolled up, the seat plate 5 is deformed so that the center portion in the width direction bends downward (both ends in the width direction are pulled upward). ). For convenience of explanation, FIG. 14 shows the rolled-up state slightly before the opening is fully opened. When the shutter curtain 1 is rolled up so as to substantially match the level L, the flexible portion of the central portion in the width direction of the shutter curtain 1 bulges downward from the height level L (so-called lintel line) of the lower surface of the lintel. There is a problem that it is not desirable in terms of design. FIG. 17 is a front view of the shutter device showing a state in which the shutter curtain 1 is rolled up, and shows a one-sided down state (conventional technology) accompanied by bending of the seat plate 6'. When the shutter curtain 1 is rolled up so that the lower end of the seat plate 6' substantially coincides with the height level L of the lower surface of the lintel, the central portion in the width direction of the shutter curtain 1 and the bent portions at the ends in the width direction are lined up. There is a problem that it bulges downward from the height level L (so-called forage line) of the lower surface of the part, which is not preferable in terms of design.

This embodiment provides a mounting structure for the seat plate 6 that prevents the seat plate 6 from being affected by such deformation of the slats 5 . The seat plate 6 is an elongated member made of metal that extends across the width of the opening, and includes an upper seat plate 60 and a lower seat plate 61 that can move upward relative to the upper seat plate 60 . A plate-shaped rising piece 62 vertically rising is integrally formed on the upper surface 600 of the upper seat plate 60 , and the lower surface 610 of the lower seat plate 61 serves as the lower surface of the seat plate 6 . Both ends of each slat 5 in the width direction are positioned within the grooves of the left and right guide rails 3 , whereas both ends of the seat plate 6 in the width direction do not reach the guide rails 3 .

In this embodiment, the slat 5A at the lower end of the shutter curtain 1 and the seat plate 6 are connected via the adjustment plate 8 . A steel adjustment plate 8 is provided at the lower end of the shutter curtain 1 . That is, an adjustment plate 8 is provided at the lower end of the slat 5A at the lower end of the shutter curtain 1. As shown in FIG. The adjustment plate 8 has a width dimension substantially the same as the width direction of the slat 5 and has a width dimension larger than that of the seat plate 6 . The adjustment plate 8 includes a vertical plate-shaped portion 80, a curved upper connecting portion 81 integrally formed at the upper end of the vertical plate-shaped portion 80, and a lower end formed by bending the lower end of the vertical plate-shaped portion 80 and processing the end portion. and a side contact portion 82 . The adjustment plate 8 is connected to the lower end of the lower end slat 5A in a hanging posture by connecting the upper connecting portion 81 to the lower connecting portion (not shown in FIGS. 1 to 3) of the lower end slat 5A.

At both ends of the vertical plate portion 80 of the adjustment plate 8 in the width direction, the height A vertically elongated hole 83 is formed extending in the direction. 5, 7, and 9 show one vertically elongated hole 83 on each side, but a plurality of vertically elongated holes 83 may be formed in parallel in the width direction on each of the left and right sides. Insertion holes 620 are formed in both widthwise end portions of the rising piece 62 of the seat plate 6 at positions facing the vertically elongated holes 83 when the vertical plate-like portion 80 of the adjustment plate 8 is overlapped. As shown in FIGS. 11 and 12, the insertion hole 620 is formed in the upper portion of the rising piece 62, and when the lower contact portion 82 of the adjustment plate 8 is in contact with the upper surface 600 of the seat plate 6, the insertion hole 620 is closed. , facing the upper end portion of the vertically elongated hole 83 .

The adjustment plate 8 is configured such that the vertical plate portion 80 is placed on the rising piece 62 of the seat plate 6 and the lower contact portion 82 at the lower end is in contact with the upper surface 600 of the seat plate 6 . A central portion in the width direction of the plate-like portion 80 and a central portion in the width direction of the rising piece 62 of the seat plate 6 are fixed with screws 9'. An insertion hole for the screw 9' is formed in the widthwise central portion of the vertical plate-like portion 80 of the adjusting plate 8 and the widthwise central portion of the rising piece 62 of the seat plate 6 so that they are aligned when they are overlapped. It is In this embodiment, by tightening a nut 93' on the threaded portion 92' of the screw 9', the vertical plate-like portion 80 of the adjustment plate 8 and the rising piece 62 are brought into close contact between the head portion 90' and the nut 93'. The holes formed in the vertical plate portion 80 and the rising piece 62 may be insertion holes (or screw holes). In FIGS. 5, 7, and 9, it is screwed at one point, but it may be screwed at a plurality of points near the center in the width direction, and the number of screws 9' is not limited. The center portion in the width direction of the lower contact portion 82 of the adjustment plate 8 contacts the upper surface 600 of the seat plate 6 regardless of whether the shutter curtain 1 is fully closed or fully opened (see FIG. 6B). , FIG. 8(B) and FIG. 10(B)).

Both widthwise end portions of the adjustment plate 8 and the widthwise end portions of the rising piece 62 of the seat plate 6 are connected by a so-called stepped screw 9 exemplified as a pin movably inserted through the vertically elongated hole 83 in the height direction. . The stepped screw 9 comprises a disk-shaped head 90, a cylindrical or columnar stepped portion 91, and a shaft-shaped threaded portion 92. The stepped portion is located between the head 90 and the threaded portion 92. The thickness of 91 is slightly larger than the sum of the thickness of the rising piece 62 of the seat plate 6 and the thickness of the vertical plate-like portion 80 of the adjusting plate 8 .

At both ends of the rising piece 62 of the seat plate 6 in the width direction, an insertion hole 620 having a diameter to exactly receive the first half of the stepped portion 91 of the stepped screw 9 in the thickness direction is formed. The second half in the thickness direction of the adjustment plate 8 is located in the elongated hole 83 of the vertical plate-like portion 80 of the adjustment plate 8 . A threaded portion 92 of the stepped screw 9 extends beyond the vertical plate-shaped portion 80 of the adjustment plate 8 . The rising piece 62 of the seat plate 6 and the vertical plate-like portion 80 of the adjusting plate 8 are sandwiched between the nuts 93 and restrained.

By making the thickness of the step portion 91 of the stepped screw 9 slightly larger than the sum of the thickness of the vertical plate portion 80 and the rising piece 62 of the adjustment plate 8, the vertical plate portion 80 and the rising piece 62 A slight gap G (see FIG. 11) is formed between the space between the head 90 and the nut 93 (the state in which these face portions overlap each other) and the space between the head 90 and the nut 93. While restraining the rising piece 62 and the vertical plate-shaped portion 80 of the adjustment plate 8, by providing play in the thickness direction in the restrained state (the vertical plate-shaped portion 80 of the adjustment plate 8 and the rising of the seat plate 6 The faces of the pieces 62 are slightly spaced apart), allowing deformation of the adjustment plate 8 with respect to the rising pieces 62 .

FIG. 5 is a front view of the lower end portion (the adjustment plate 8 and the seat plate 6) of the shutter curtain 1 in the fully closed state of the opening. It is landed on the floor surface FL across the width direction (see FIG. 1). When the opening is fully closed, the shutter curtain 1 is not affected by the winding diameter gap, and the slat 5 and the seat plate 6 have a predetermined rigidity that does not deform under their own weight. The slats 5 and the seat plate 6 extend horizontally.

6(A) is a vertical cross-sectional view along the line AA in FIG. 5, FIG. 6(B) is a vertical cross-sectional view along the line BB in FIG. 5, and FIG. 11 is an enlarged view of FIG. 6(A). be. As shown in FIGS. 6A and 11, when the opening is fully closed, the stepped portions 91 of the left and right stepped screws 9 in the width direction are positioned at the upper ends of the left and right elongated holes 83, and the adjustment plate 8 is It extends substantially horizontally without deformation, and the lower contact portion 82 of the adjustment plate 8 contacts the upper surface 600 of the seat plate 6 over the entire width direction. Also, the upper portion of the adjustment plate 8 including the upper connecting portion 81 is located above the upper ends of the rising pieces 62 .

As shown in FIG. 6B, the widthwise central portion of the rising piece 62 and the widthwise central portion of the vertical plate-like portion 80 of the adjustment plate 8 are slightly below the heightwise central portion, and the screw 9 ' and a nut 93'. The position of the vertical plate-like portion 80 of the adjustment plate 8 with respect to the rising piece 62 is fixed at the central portion of the seat plate 6 in the width direction.

FIG. 7 is a front view of the lower end portion (the adjustment plate 8 and the seat plate 6) of the shutter curtain 1 in the fully opened state, showing a mode in which the center portion of the lower end of the shutter curtain 1 in the width direction bends downward (see FIG. 7). 14). Since the winding diameters of both ends of the shutter curtain 1 in the width direction are larger than those of the central portion, both ends of the adjustment plate 8 in the width direction are pulled upward and deformed, resulting in the width direction of the adjustment plate 8. The central portion of the is bent downward.

In this embodiment, since the stepped portion 91 of the stepped screw 9 is movable in the vertical direction in the vertically elongated hole 83 of the adjusting plate 8, both widthwise end portions of the adjusting plate 8 are formed into the stepped portion 91 (stepped portion 91 The height position with respect to the rising piece 62 is unchanged), so that it deforms away from the upper surface 600 of the seat plate 6, and the deformation of the adjustment plate 8 causes the deformation of the seat plate 6 There is no transmission to the rising piece 62 .

8(A) is a vertical cross-sectional view along the line AA of FIG. 7, FIG. 8(B) is a vertical cross-sectional view along the line BB of FIG. 7, and FIG. 12 is an enlarged view of FIG. 8(A). be. As shown in FIGS. 7, 8A, and 12, both widthwise end portions of the adjustment plate 8 are deformed upward so that the lower contact portions 82 are separated from the upper surface 600 of the seat plate 6. , and is displaced upward relative to both end portions of the rising piece 62 in the width direction. Along with the upward deformation of both ends of the adjusting plate 8 in the width direction, the vertically elongated holes 83 of the adjusting plate 8 move upward with respect to the stepped portions 91 of the screws 9 , so that the left and right stepped screws 9 in the width direction move upward. The stepped portion 91 is moved downward relative to the left and right vertically elongated holes 83 from the upper end position. The upward deformation of both ends of the adjusting plate 8 in the width direction is caused by the vertical hole 83 of the vertical plate-shaped portion 80 of the adjusting plate 8 moving upward relative to the stepped portion 91 of the screw 9 . It is absorbed without being transmitted to the rising piece 62 . Therefore, as shown in FIG. 7, the adjustment plate 8 is deformed upward so that both end portions in the width direction thereof are separated from the upper surface 600 of the seat plate 6, while the rising pieces 62 of the seat plate 6 are not deformed. It extends horizontally, and the lower surface 610 of the seat plate 6 maintains horizontality.

6 and 8, in the opening fully closed state and the opening fully open state, the height of the screw 9', which is the fixed portion of the widthwise central portion of the rising piece 62, and the widthwise both ends The relative position of the height of the stepped screw 9 is constant, and only the widthwise end portions of the adjustment plate 8 are deformed upward with respect to the seat plate 6, while the width of the rising piece 62 of the seat plate 6 is increased. The directional end portions do not deform upward with respect to the central portion.

When the shutter curtain 1 is further rolled up from the state shown in FIG. 2 so that the lower surface 610 of the seat plate 6 substantially coincides with the height level L of the lower surface of the lintel, the lower surface 610 of the seat plate 6 of the shutter curtain 1 becomes the lintel. The height level L (so-called lintel line) of the lower surface of the part substantially coincides with it, which is good in terms of design.

FIG. 9 is a front view of the lower end portion (the adjustment plate 8 and the seat plate 6) of the shutter curtain 1 with the opening fully open, in which the widthwise center portion and the widthwise end portions of the lower end of the shutter curtain 1 are downward. It corresponds to the bending one-side down mode (see FIG. 17). In the embodiment shown in FIG. 9, the winding diameter of the left end portion of the shutter curtain 1 in the width direction is larger than the winding diameters of the central portion and the right end portion, so that the left end portion of the adjustment plate 8 in the width direction is pulled upward. As a result, the adjustment plate 8 is in a state where the right side is lowered.

10(A) is a longitudinal sectional view along the line AA of FIG. 9, FIG. 10(B) is a longitudinal sectional view along the line BB of FIG. 9, and FIG. 10(C) is a longitudinal sectional view along the line CC of FIG. It is a sectional view. As shown in FIGS. 9 and 10A, the left end portion of the adjustment plate 8 in the width direction is deformed upward so that the lower contact portion 82 is separated from the upper surface 600 of the seat plate 6. The left end portion of the piece 62 in the width direction is displaced upward.

As the left end portion of the adjustment plate 8 is deformed upward in the width direction, the vertically elongated hole 83 on the left end side of the adjustment plate 8 moves upward with respect to the stepped portion 91 of the stepped screw 9 . The stepped portion 91 of the stepped screw 9 is moved downward from the upper end position relative to the vertically elongated hole 83 on the left end side. The upward deformation of the left end portion of the adjustment plate 8 in the width direction is caused by the vertical hole 83 of the vertical plate-shaped portion 80 of the adjustment plate 8 moving upward relative to the stepped portion 91 of the stepped screw 9 . 6 is absorbed without being transmitted to the rising piece 62 . Therefore, as shown in FIG. 9, the left end portion of the adjustment plate 8 in the width direction moves upward away from the upper surface 600 of the seat plate 6, while the rising piece 62 of the seat plate 6 is not deformed. It extends horizontally, and the lower surface 610 of the seat plate 6 maintains horizontality.

9 and 10, since the widthwise right end portion of the adjusting plate 8 is not pulled upward when the shutter curtain 1 is wound, the height position of the adjusting plate 8 with respect to the seat plate 6 is the opening. The height position of the stepped portion 91 of the stepped screw 9 in the vertical hole 83 is the same for the fully closed state (see FIG. 6A) and the fully opened state (FIG. 10C). is invariant when raising or lowering .

When the shutter curtain 1 is further rolled up from the state shown in FIG. 3 so that the lower surface 610 of the seat plate 6 substantially coincides with the height level L of the lower surface of the lintel, the lower surface 610 of the seat plate 6 of the shutter curtain 1 becomes the lintel. The height level L (so-called lintel line) of the lower surface of the part substantially coincides with it, which is good in terms of design.

FIGS. 9 and 10 show the case of the right-sided down state, but in the case of the left-sided down state, the vertically long hole 83 at the right end portion is upward with respect to the stepped portion 91 of the stepped screw 9 at the right end portion. Those skilled in the art will understand that the movement absorbs the upward deformation of the widthwise right end portion of the adjustment plate 8 and does not affect the seat plate 6 .

In the above description, the vertically long hole 83 is formed in the adjustment plate 8 , the stepped screw 9 is inserted from the rising piece 62 side of the seat plate 6 , and the adjustment plate 8 side is tightened with the nut 93 . A vertically long hole 63 is formed in the rising piece 62 of the adjustment plate 8, and when the vertical plate-like portion 80 of the adjustment plate 8 and the rising piece 62 are overlapped, an insertion hole is formed in the vertical plate-like portion 80 so as to face the vertically long hole 63. By inserting the screw 9 from the adjusting plate 8 side and tightening the nut 93 from the rising piece 62 side to the screw portion 92 extending through the rising piece 62 , the stepped portion 91 is inserted into the insertion hole and the vertically elongated hole 63 . In the positioned state, the vertical plate-like portion 80 and the rising piece 62 may be sandwiched between the head 90 and the nut 93 to restrain them (FIG. 13).

FIG. 13 is a cross-sectional view of the lower end portion of the shutter curtain 1 in the fully closed state of the opening, corresponding to FIG. 6(A). 6A, the stepped portion 91 of the stepped screw 9 is positioned at the upper end of the vertically elongated hole 83 formed in the vertical plate-shaped portion 80 of the adjustment plate 8, whereas in FIG. The stepped portion 91 of 9 is positioned at the lower end of the vertically elongated hole 63 formed in the rising piece 62 of the seat plate 6 . When the shutter curtain 1 is taken up by the take-up shaft 2 and rises from the opening fully closed state to the opening fully open state, if the winding diameter of both or one of the width direction end portions of the shutter curtain 1 becomes large. , the adjustment plate 8 and the stepped screw 9 move up in the vertical holes 63 of the rising pieces 62 of the seat plate 6 to absorb the upward deformation of the adjustment plate 8, and the deformation of the adjustment plate 8 is reduced by the seat plate 6. are designed not to affect

1 shutter curtain 2 winding shaft 5 slat 6 seat plate 600 upper surface 610 lower surface 62 rising piece 8 adjustment plate 83 vertical hole 9 stepped screw 90 head 91 stepped portion 92 screw portion 93 nut

Claims (2)

The shutter curtain has a shutter curtain consisting of a plurality of slats with hook portions provided at both ends in the width direction, and when the shutter curtain is wound, due to contact between the hook portions of the slats adjacent in the radial direction, the shutter curtain is in a state where the opening is fully open. In a shutter device in which the winding diameter of is large at both ends or one end in the length direction of the winding shaft,
An adjustment plate is vertically connected to the slat at the lower end of the shutter curtain,
When the opening is fully closed, the adjusting plate extends substantially horizontally without deformation. When the opening is fully open, both ends or one end in the width direction is pulled upward and deformed according to the winding diameter. , the width direction central part or the other end is bent downward,
The adjusting plate has a widthwise central portion fixed to a widthwise central portion of the rising piece in a state of overlapping with the rising piece vertically rising from the upper surface of the seat plate,
A longitudinally elongated hole is formed in one of the corresponding end portions of the widthwise end portions of the adjustment plate and the widthwise end portions of the rising piece, and the other end portion has a height within the longitudinally elongated hole. By providing the pins movable in the direction, both width direction end portions of the adjustment plate are allowed to move in the height direction with respect to the width direction end portions of the rising pieces when the shutter curtain is raised and lowered. is connected to
The shutter curtain is constructed so that the deformation of the adjustment plate is not transmitted to the rising piece while the shutter curtain is raised from the fully closed state of the opening to the fully opened state of the opening.
shutter device. The pin is a stepped screw having a head, a stepped portion, and a threaded portion, the stepped portion being located in the longitudinal hole, and the thickness of the stepped portion being equal to the thickness of the adjustment plate and the riser. slightly larger than the sum of the thicknesses of the pieces,
The shutter device according to claim 1 .

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