JP6340312B2 - Slat guide mechanism in shutter device - Google Patents

Description

The present invention relates to a slat guide mechanism provided above a building opening.

In the shutter device, in order to smoothly open and close the shutter curtain, a so-called smoother as a slat guide mechanism may be attached to the upper lintel of the building opening. A roller is well known as such a smoother. However, when the interlock portion of the slat is guided in contact with the roller and the roller has a small diameter, the roller is interposed between the upper and lower interlock portions of the slat. May fall and slats may be fitted to the outer peripheral surface of the roller (see FIG. 1 of Patent Document 1). If the slat fits on the outer peripheral surface of the roller when the shutter is opened and closed, it may hinder smooth opening and closing, and may cause an opening and closing sound.

In order to prevent this, a roller with a large diameter is used or a plurality of rollers are shifted up and down. However, if a roller with a large diameter or a plurality of rollers are provided, the shutter case is increased accordingly. This occupies space in the interior, resulting in an increase in the size of the shutter case.

In Patent Documents 1 and 2, the above-described problem is addressed by configuring a slat guide mechanism by winding a belt between two relatively small-diameter rollers. However, since the slat repeatedly contacts the belt when the shutter is opened and closed, there is a concern about the durability of the belt. Since the slat rotates, resistance is likely to occur at the contact portion between the slat and the belt as compared with the case where the slat is guided in direct contact with the roller.
No. 52-121146 ACT 2-68099

  An object of the present invention is to provide a slat guide mechanism that can cope with the above-described problems without using a belt.

The technical means adopted by the present invention are:
The slat guide mechanism located above the building opening is
An upper guide roller having a guide circumferential surface in contact with the slat;
A lower guide roller having a guide circumferential surface in contact with the slat;
A guide plate with a guide surface in contact with the slat;
With
The upper guide roller and the lower guide roller are spaced apart in the height direction,
The guide plate is arranged such that the guide surface bridges the guide peripheral surface of the upper guide roller and the guide peripheral surface of the lower guide roller in a side view.
It is a slat guide mechanism in a shutter device.

In one aspect, the guide peripheral surface of the upper guide roller and the guide peripheral surface of the lower guide roller have a common tangential plane,
The guide plate is disposed such that the guide surface is located in the tangential plane.

In one aspect, the upper guide roller, the lower guide roller, and the guide plate are juxtaposed in the opening width direction of the building opening (displaced in the opening width direction),
The upper end portion and the lower end portion of the guide plate overlap in the height direction with the lower portion of the upper guide roller and the upper portion of the lower guide roller, respectively.

  In one aspect, the upper guide roller is disposed farther from the shutter core than the lower guide roller, and the guide surface of the guide plate is spaced from the shutter core from the lower end toward the upper end. It is an inclined surface.

  In the present invention, the guide plate is disposed so as to bridge the guide peripheral surface of the upper guide roller and the guide peripheral surface of the lower guide roller, although the upper guide roller and the lower guide roller having smaller diameters are employed. Therefore, when the shutter is opened and closed, the slats do not fall into the space between the upper guide roller and the lower guide roller, the guide peripheral surface of the upper guide roller, the guide peripheral surface of the lower guide roller, the guide plate The guide surfaces cooperate to smoothly guide the slats, and to reduce open / close noise that may occur when the slats fall between the guide rollers. By adopting the smaller-diameter upper guide roller and the lower guide roller, the shutter case can be accommodated smaller than when a large-diameter guide roller is employed.

  The guide peripheral surface of the upper guide roller and the guide peripheral surface of the lower guide roller have a common tangential plane, and the guide plate is arranged such that the guide surface is located within the tangential plane. Since all the guide portions (guide circumferential surface, guide surface) that contact the slat are located in the same tangent plane, the slat is guided along the common tangential plane, and no step is generated. The guide peripheral surface of the guide roller, the guide peripheral surface of the lower guide roller, and the guide surface of the guide plate can cooperate to smoothly guide the slats, and open / close that may occur when there is a step Sound can be reduced.

It is a front view of a shutter device (opening part fully closed state). It is a fragmentary longitudinal cross-sectional view which expands and shows the upper site | part of a shutter apparatus. It is a fragmentary longitudinal cross-sectional view which expands and shows the upper part of a shutter apparatus, Comprising: It is a figure explaining the effect | action of the slat guide mechanism which concerns on this embodiment. It is a front view of the slat guide mechanism which concerns on this embodiment. It is a side view of the slat guide mechanism concerning this embodiment. It is a figure which shows the 1st mounting base to which a guide roller is attached. It is a figure which shows the 2nd mounting base to which a guide plate is attached.

Embodiments of the present invention will be described with reference to the drawings. 1 is a front view of the shutter device (opening fully closed state), and FIG. 2 is a longitudinal sectional view (opening fully open state) of the upper portion of the shutter device. The shutter device is in the width direction of the building opening. Left and right guide rails 1 erected on both right and left ends, a shutter case 2 provided above the building opening, a winding shaft 3 provided in the shutter case 2, and an upper end connected to the winding shaft 3 The shutter curtain 4 is provided. The shutter curtain 4 is formed by interlocking a plurality of slats 40 with each other. During winding, the interlock connecting portion of the slat 40 comes into contact with the peripheral surface of the winding shaft 3 and the surface portion of the slat 40 that has already been wound (see FIG. 3).

The housing W is provided with left and right brackets 5 and 6 in a take-out shape, with one bracket 5 being a driven bracket and the other bracket 6 being a drive side bracket. The winding shaft 3 is rotatably supported between the left and right brackets 5 and 6 and is driven to rotate by an opening / closing machine 7 attached to the bracket 6 on the driving side. With the forward / reverse rotation of the winding shaft 3, the shutter curtain 4 is drawn out from the winding shaft 3 and descends to close the building opening, and the shutter curtain 4 is wound around the winding shaft 3 and rises. Open the building opening.

Between the left and right brackets 5, 6, a first reinforcing member 8, a second reinforcing member 9, and an inner lintel 10 are provided so as to bridge the left and right brackets 5, 6. The first reinforcing member 8, the second reinforcing member 9, and the inner lintel 10 are long members that extend horizontally in the opening width direction, and constitute the framework of the shutter case 2 together with the left and right brackets 5 and 6.

In the present embodiment, the shutter case 2 includes a case upper plate 20 and a case lower plate 21 and is attached to the frame. The case upper plate 20 and the case lower plate 21 are short with respect to the opening width dimension, and the shutter case 2 is formed by connecting a plurality of case upper plates 20 and case lower plates 21 in the opening width direction. doing. The ends of the adjacent case upper plates 20 and 20 are supported by the case rib material 11, and the ends of the adjacent case lower plates 21 and 21 are supported by the case rib material 12. The configuration of the shutter case 2 is not limited to the illustrated one.

As shown in FIG. 2 and FIG. 3, the rising edge 100 located on the housing W side of the inner lintel 10 is opposed to the housing W, and a building is formed between the rising edge 100 and the housing W. An opening extending in the width direction of the opening is formed, and the internal space of the shutter case 2 and the building opening communicate with each other through the opening. Upper end portions of the left and right guide rails 1 are located at both ends in the length direction of the opening. The upper end portion of the guide rail 1 extends upward beyond the height position of the lower surface of the case lower plate 21 and further expands to a portion beyond the height position of the upper end of the rising edge 100 of the inner lintel 10. A shaped upper guide 1A is formed.

In the illustrated embodiment, the inner lintel 10 is formed of a square pipe having a square shape in cross section and a plate-like member fixed to the square pipe, and the plate-like member has a horizontal side and a rising side at the tip of the horizontal side. 100 and a horizontal side 101 at the upper end of the rising side 100. An inclined plate piece (see FIG. 2) is connected between the upper end of the rising edge 100 and the square pipe. The plate piece is short with respect to the entire length of the inner lintel 10, and the square pipe and Since a plurality of the rising edges 100 and the horizontal edges 101 are provided at intervals in the length direction, the fixing of the slat guide mechanism G to the inner lintel 10 described later is not hindered. The shape and configuration of the inner lintel 10 are not limited to the illustrated shape and configuration.

The shutter curtain 4 moves up and down while being guided by the guide grooves of the left and right guide rails 1 at both ends in the width direction. A smoother assembly, that is, a slat guide mechanism G is provided above the opening of the building and located in the elevating path of the shutter curtain 4. As shown in FIG. 2, the slat guide mechanism G is fixed to the inner lintel 10 on the opposite side of the housing W across the upper end portion (shutter core C) of the guide rail 1.

As shown in FIGS. 2 and 3, the height position where the slat guide mechanism G is provided is substantially the same as the height position of the upper guide 1A. Each slat 40 of the shutter curtain 4 moves up and down while being guided by the guide rail 1 while both ends in the length direction are located in the groove of the guide rail 1, but the winding shaft 3 is unwound from the upper guide 1A. Since both ends in the length direction are in a free state up to the winding position, a midway portion in the length direction of the slat 40 is guided by the slat guide mechanism G at the height position of the upper guide 1A. One or more slat guide mechanisms G are provided above the opening according to the opening width dimension (length dimension of the slat 40). When only one slat guide mechanism G is provided, the slat guide mechanism G is provided near the center of the opening width. When a plurality of slat guide mechanisms G are provided, the slat guide mechanism G is provided with an appropriate interval in the opening width direction.

As shown in FIGS. 4 and 5, the slat guide mechanism G includes an upper first guide roller 13, a lower second guide roller 14, a first guide roller 13, and a second guide that are spaced apart in the height direction. The left and right first guide plates 15 and second guide plates 16 arranged adjacent to the roller 14 in the opening width direction, and the first mounting base 17 on which the first guide rollers 13 and the second guide rollers 14 are supported. And a second mounting base 18 on which the first guide plate 15 and the second guide plate 16 are supported. The second mounting base 18 is supported by the first mounting base 17.

The outer peripheral surface of the first guide roller 13 forms a guide peripheral surface 130 that contacts the slat 40. Similarly, the outer peripheral surface of the second guide roller 14 forms a guide peripheral surface 140 that contacts the slat 40. . The first guide roller 13 and the second guide roller 14 are arranged in a horizontal posture so as to be separated from each other in the vertical direction and extend in the opening width direction. The guide peripheral surface 130 of the first guide roller 13 and the second guide roller 14 The guide peripheral surface 140 has a common tangential plane P. The tangent plane P is a plane connecting the guide peripheral surface 130 of the first guide roller 13 and the guide peripheral surface 140 of the second guide roller 14 in the tangential direction in a side view (see FIG. 5).

In the illustrated embodiment, the distance between the first guide roller 13 and the second guide roller 14 from the shutter core C (see FIG. 2) is slightly different. Specifically, the lower second guide roller 14 is located near the shutter core C, and the upper first guide roller 13 is located far from the shutter core C. That is, the guide peripheral surface 130 of the first guide roller 13 is further away from the shutter core C than the guide peripheral surface 140 of the second guide roller 14, and the guide peripheral surface 130 of the first guide roller 13 and the second guide roller 13 A tangential plane P connecting the 14 guide peripheral surfaces 140 in the tangential direction (side view) is an inclined surface that is separated from the shutter core C from the lower end toward the upper end.

The diameter of the first guide roller 13 and the diameter of the second guide roller 14 are sufficiently small with respect to the height direction of the slat 40. The 1st guide roller 13 and the 2nd guide roller 14 are formed from the material excellent in cushioning properties, for example, are formed from the roller made from urethane. In the illustrated embodiment, the first guide roller 13 and the second guide roller 14 have the same size and shape (same diameter and length), but may have different diameters and lengths.

The guide plates 15 and 16 are vertically rectangular plates, and include guide surfaces 150 and 160 that contact the slats 40, respectively. The guide surfaces 150 and 160 are flat surfaces and are located in the same plane. As shown in FIG. 5, the first guide plate 15 and the second guide plate 16 have guide surfaces 150 and 160 in the side view, the guide peripheral surface 130 of the first guide roller 13 and the guide periphery of the second guide roller 14. It arrange | positions so that the surface 140 may be bridged. In the present embodiment, the first guide plate 15 and the second guide plate 16 have contact surfaces 150 and 160 passing through the guide peripheral surface 130 of the first guide roller 13 and the guide peripheral surface 140 of the second guide roller 14. It arrange | positions so that it may be located in the plane P. FIG.

In the present embodiment, as shown in FIG. 4, the first guide plate 15 is disposed adjacent to the left side of the first guide roller 13 and the second guide roller 14 when viewed from the front, and the second guide plate 16 is The first guide roller 13 and the second guide roller 14 are disposed adjacent to the right side of the front view. The upper end portion and the lower end portion of the first guide plate 15 overlap the lower portion of the upper first guide roller 13 and the upper portion of the lower second guide roller 14 in the height direction, respectively. Similarly, the upper end portion and the lower end portion of the second guide plate 16 overlap the lower portion of the upper first guide roller 13 and the upper portion of the lower second guide roller 14 in the height direction, respectively. Yes. By doing so, the heights of the upper ends of the guide surfaces 150 and 160 of the first guide plate 15 and the second guide plate 16 and the height of the guide peripheral surface 130 of the first guide roller 13 substantially coincide with each other. 2 The lower ends of the guide surfaces 150 and 160 of the guide plate 16 and the height of the guide peripheral surface 140 of the second guide roller 14 are substantially matched.

The first guide plate 15 and the second guide plate 16 are vertically rectangular resin plates, which are preferably formed from a resin with good slipperiness, for example, a resin plate made of high molecular weight polyethylene. In the illustrated embodiment, the first guide plate 15 and the second guide plate 16 have the same size and shape, but may have different sizes and shapes.

As shown in FIG. 6, the first mount 17 has a U-shape in a plan view from left and right vertical side plates 170 and 171 and a vertical bottom plate 172 that connects the base end sides of the side plates 170 and 171. Holes 173 and 174 are formed on the front end sides of the side plates 170 and 171 so as to support the both ends of the first guide roller 13 and the second guide roller 14 in the longitudinal direction while being spaced apart from each other in the vertical direction. ing. The positions of the upper and lower holes 173 and 174 are deviated from the vertical plane, and the upper hole 173 is slightly located on the base end side with respect to the lower hole 174. The first guide roller 13 and the second guide roller 14 are rotatably supported between the left and right side plates 170 and 171, and the guide peripheral surface 130 of the first guide roller 13 and the guide peripheral surface 140 of the second guide roller 14 are connected. A tangential plane P connected in the tangential direction (side view) is an inclined surface that extends from the lower end toward the upper end toward the base end side of the mounting base 17. The leading edges of the left and right side plates 170, 171 are slightly inclined, and positioning protrusions 175 are formed in the middle of the leading edges in the height direction. At the upper end of the bottom side 172, a horizontal side 176 extending on the side opposite to the side plates 170 and 171 is formed.

As shown in FIG. 7, the second mounting base 18 is a plate-like body having an H shape in plan view, which includes left and right vertically long portions 180 and 181 and a central portion 182 connecting the left and right vertically long portions 180 and 181. . A vertically long opening 183 and a cut-and-raised piece 184 are formed at positions where the left and right vertically long portions 180 and 181 and the central portion 182 are connected. The first guide plate 15 and the second guide plate 16 are respectively fixed to the surface side of the left and right vertically long portions 180 and 181 with screws.

The second mounting base 18 abuts the back side of the portion of the left and right vertically long portions 180 and 181 near the central portion 182 with the front edge of the left and right side plates 170 and 171 of the first mounting base 17 and The raised pieces 184 are brought into contact with the surface portions of the left and right side plates 170 and 171 and the cut and raised pieces and the side plates 170 and 171 are welded to be integrated. At this time, the positioning protrusions 175 formed on the leading edges of the left and right side plates 170 and 171 determine the mounting position of the second mounting base 18 in the height direction with respect to the first mounting base 17.

As shown in FIG. 4, in the state where the second mounting base 18 is fixed to the first mounting base 17, the upper first guide is located in the space formed between the left and right vertically long portions 180 and 181 on the upper side of the central portion 182. The roller 13 is located, and the lower second guide roller 14 is located in a space formed between the left and right vertically elongated portions 180 and 181 below the center portion 182.

In the present embodiment, the mounting base of the slat guide mechanism G includes a first mounting base 17 and a second mounting base 18 welded to the first mounting base 17, and the slat guide mechanism G includes the first mounting base 17. It is being fixed (for example, welding) with respect to the inner lintel 10 via. More specifically, as shown in FIG. 3, the side plate 170 (not shown in FIG. 3) of the first mounting base 17, the lower end of 171 is in contact with the horizontal side 101 of the inner lintel 10, and the first A vertical bottom plate 172 (not shown in FIG. 3) and a horizontal side 176 of the mounting base 17 are in contact with the front and top surfaces of the square pipe of the inner lintel 10, respectively. The first mounting base 17 is fixed to the inner lintel 10 by welding at least a part of the contact portion between the first mounting base 17 and the inner lintel 10.

In the present embodiment, the diameter of the first guide roller 13 and the diameter of the second guide roller 14 are sufficiently small with respect to the height direction of the slat 40, but the first guide roller 13 and the second guide roller The first guide plate 15 and the second guide plate 16 are adjacent to the roller 14 so as to bridge the guide peripheral surface 130 of the first guide roller 13 and the guide peripheral surface 140 of the second guide roller in a side view. Therefore, when the shutter is opened and closed, the slat 40 does not fall into the space between the first guide roller 13 and the second guide roller 14, and the guide peripheral surface 130 of the first guide roller 13, the second guide. The guide peripheral surface 140 of the roller 14, the guide surface 150 of the first guide plate 15, and the guide surface 160 of the second guide plate 16 cooperate to make the slat 40 smooth. Can be guided to's, also can be reduced would occur or when the slat 40 is dropped between the guide rollers closing sound.

In the present embodiment, the guide peripheral surface 130 of the first guide roller 13 and the guide peripheral surface 140 of the second guide roller 14 have a common tangential plane P, and the first guide plate 15 and the second guide plate 16 Since the guide surfaces 150 and 160 are located in the tangential plane P, the first guide roller 13 and the second guide roller 14, the first guide plate 15 and the second guide plate 16 are displaced in the opening width direction. However, since the slat 40 contacts the slat guide mechanism G at the common tangent plane P when the shutter is opened and closed, the slat 40 is guided along the tangent plane P without any step difference. The guide peripheral surface 130 of the first guide roller 13, the guide peripheral surface 140 of the second guide roller, the guide surface 150 of the first guide plate 15, and the second guide plate 16 Id surface 160 cooperate, it is possible to guide the slats 40 smoothly, also possible to reduce the opening and closing sound that would occur or when there is a step.

The slat guide mechanism G according to the present invention is not limited to the illustrated embodiment. For example, a third guide plate may be provided between the first guide plate 15 and the second guide plate 16 and on the front surface of the central portion 182 of the second mounting base 18. In this case, the guide surface of the third guide plate is located in the tangential plane P. In addition, although the two guide plates, that is, the first guide plate 15 and the second guide plate 16 have been described, the slat guide mechanism G has one guide plate (for example, the first guide plate 15 and the second guide plate 15). Any one of the guide plates 16) may be provided. Alternatively, two left and right upper guide rollers and two left and right lower guide rollers may be provided on both sides of one guide plate. In this case, the guide surface of the guide plate and the guide peripheral surfaces of the four upper, lower, left and right guide rollers are located in the same tangential plane.

13 First guide roller 130 Guide peripheral surface 14 Second guide roller 140 Guide peripheral surface 15 First guide plate 150 Guide surface 16 Second guide plate 160 Guide surface G Slat guide mechanism P Tangent plane

Claims (4)

The slat guide mechanism located above the building opening is
An upper guide roller having a guide circumferential surface in contact with the slat;
A lower guide roller having a guide circumferential surface in contact with the slat;
A guide plate with a guide surface in contact with the slat;
With
The upper guide roller and the lower guide roller are spaced apart in the height direction,
The guide plate is arranged such that the guide surface bridges the guide peripheral surface of the upper guide roller and the guide peripheral surface of the lower guide roller in a side view.
A slat guide mechanism in a shutter device. The guide peripheral surface of the upper guide roller and the guide peripheral surface of the lower guide roller have a common tangential plane,
The guide plate is disposed such that the guide surface is located in the tangential plane,
A slat guide mechanism in the shutter device according to claim 1. The upper guide roller, the lower guide roller and the guide plate are juxtaposed in the opening width direction of the building opening,
The upper end portion and the lower end portion of the guide plate respectively overlap the lower portion of the upper guide roller and the upper portion of the lower guide roller in the height direction.
A slat guide mechanism in the shutter device according to claim 1. The upper guide roller is disposed farther from the shutter core than the lower guide roller, and the guide surface of the guide plate is an inclined surface that is spaced from the shutter core from the lower end toward the upper end. ,
The slat guide mechanism in the shutter device according to claim 1.

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