JP2007162427A - Structure of opening/closing body equipped with obstacle sensor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a structure of an opening/closing body equipped with an obstacle sensor, which facilitates the removal of an obstacle caught in the opening/closing body, after a shutter is stopped by sensing the obstacle. <P>SOLUTION: In this structure of the opening/closing body 4 equipped with the obstacle sensor 1, a sensing piece 16, which is provided at the closing-direction leading end of the opening/closing body 4, abuts on the obstacle, so that the state of the movability of the sensing piece 16 in an anti-closing direction can be sensed for the stop of the closing motion of the opening/closing body 4. The opening/closing body 4 is provided with a sliding part which enables the side of the leading end of the opening/closing body 4 to be further moved in the anti-closing direction, that is, the opening direction, after the sensing piece 16 can be moved. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a structure of an opening / closing body provided with an obstacle sensing device used as a safety mechanism of an opening / closing body attached to an opening of a building such as an electric shutter.

  The electric shutter attached to the opening of the building generally has a slat curtain that constitutes the shutter descends from above to close the opening. At that time, if there is an article or a person directly under the slat curtain, There is a risk that this article or person becomes an obstacle, and this obstacle is sandwiched between the slat curtain and the floor, causing a damage accident.

In order to prevent such an accident, a shutter obstacle sensing device as disclosed in Patent Document 1 has been devised. This obstacle sensing device includes a decorative cover having a substantially U-shaped cross-section with a lower surface opened on a seat plate portion that is a drainage at the lowermost end of the slat curtain, and a movable bottom plate that is suspended vertically on the lower surface of the decorative cover. And a micro switch disposed in the interior thereof, and the micro switch detects the lift of the movable bottom plate in contact with the obstacle.
Japanese Utility Model Publication No. 1-37111

In the above-described conventional obstacle sensing device, when the movable bottom plate comes into contact with the obstacle when the shutter is lowered, the micro switch is activated by the floating of the movable bottom plate, and the obstacle sensing signal is sent to the opening / closing control unit. The shutter is stopped on the spot. Therefore, when the obstacle is removed, the microswitch returns to the non-sensing state and can be lowered again. There is also an electric shutter of the type that stops when the obstacle is sensed and the shutter is reversed and raised.
However, a fire shutter for forming a fire protection section when a fire occurs has only a function of stopping only when an obstacle is detected. In general, in the case of a fire shutter, when a building opening is closed by lowering, it is possible to pass through an emergency door located on the side of the opening.
However, during an emergency evacuation, if an attempt is made to dive the shutter or the shutter is lowered due to mischief, etc., if the obstacle is uneven and the recess is pinched by the lowermost end of the shutter, the shutter will stop on the spot, but invert Since it is not raised, it is difficult to remove the obstacle. In addition to this, if the obstacle could not be removed, there was a problem that a gap was still formed between the lowermost end of the shutter and the floor, and the fire prevention compartment was not formed.

  The present invention has been made in view of the above situation, and provides a structure of an opening / closing body including an obstacle sensing device that makes it easy to remove an obstacle sandwiched between the opening / closing body after the shutter is stopped by obstacle sensing. Therefore, it aims at improving the safety and improving the reliability of forming the fire protection compartment.

Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments.
The structure of the opening / closing body provided with the obstacle sensing device according to claim 1 of the present invention is such that the sensing piece 16 provided at the front end in the closing direction of the opening / closing body 4 abuts against the obstacle B so that the sensing piece 16 The structure of the opening / closing body 4 provided with the obstacle sensing device 1 that detects the movement in the anti-closing direction and stops the closing movement of the opening / closing body 4,
The opening / closing body 4 is further provided with a slide portion 45 that allows the distal end side of the opening / closing body 4 to move in the anti-closing direction after the sensing piece 16 is moved.

In the structure of the opening / closing body provided with the obstacle sensing device, the distal end side of the opening / closing body 4 is moved in the anti-closing direction, that is, the opening direction, so that the opening / closing body 4 is located between the distal end side of the opening / closing body 4 and the obstacle B. Even if the gap S is formed and, for example, the obstacle B is sandwiched between the concave and convex concave portions Ba, the convex portions Bb can pass through the formed gap B.
The opening / closing body 4 may be at least closed.
Further, it may be operated by its own weight, electrically operated, or manually operated.

  The structure of the opening / closing body provided with the obstacle sensing device according to claim 2 is characterized in that the opening / closing direction of the opening / closing body 4 is an ascending / descending direction.

  In the structure of the opening / closing body provided with this obstacle sensing device, the slide portion 45 is held in a non-sliding state by the weight of the opening / closing body 4, and the removal function after the obstacle is caught can be held.

  In the structure of the opening / closing body provided with the obstacle sensing device according to claim 3, the slide portion 45 includes a long hole 49 long in the anti-closing direction and a pin 51 engaged with the long hole 49. Features.

  In the structure of the opening / closing body provided with the obstacle sensing device, the slide portion 45 is composed of the long hole 49 and the pin 51, and a simple structure can be realized.

  The structure of the opening / closing body provided with the obstacle sensing device according to claim 4 is characterized in that a cover member 55 for concealing the elongated hole 49 is provided in the opening / closing body 4.

  In the structure of the opening / closing body provided with this obstacle sensing device, the cover member 55 blocks off flames, smoke, and the like that try to pass through the opening / closing body 4 through the long holes 49.

  In the structure of the opening / closing body provided with the obstacle sensing device according to claim 5, the cover member 55 is parallel to the opening / closing body 4 and is in close contact with the opening / closing body 4, and parallel to the opening / closing body 4. The cover portion 55b is spaced apart from the opening / closing body 4 and the connecting portion 55c is perpendicular to the opening / closing body 4 and connects the fixing portion 55a to the covering portion 55b. It is characterized by that.

  In the structure of the opening / closing body provided with this obstacle sensing device, the covering member 55 has a Z-shaped cross section, and the rigidity of the opening / closing body 4 is enhanced. Further, the cover portion 55 can be effectively used as a slide guide.

  In the structure of the opening / closing body having the obstacle sensing device according to claim 6, the slide portion 45 </ b> A includes a recess 73 having a slide space 72 extending in the anti-closing direction, and the slide space 72 of the recess 73. The slide plate 74 is slidably inserted.

  In the structure of the opening / closing body provided with this obstacle sensing device, a slide structure in which the slide plate 74 is slid into the slide space 72 of the recess 73 and the long hole 49 is not provided is possible.

  The structure of the opening / closing body provided with the obstacle sensing device according to claim 7 is characterized in that the opening / closing body 4 is provided with a detecting means 71 for detecting the movement of the opening / closing body tip side in the anti-closing direction. To do.

  In the structure of the opening / closing body provided with this obstacle sensing device, even if the slide portion 45 is slid and the sensing piece 16 is separated from the obstacle B, the sensing state of the obstacle B is maintained by the signal from the sensing means 71. to continue.

  The structure of the opening / closing body provided with the obstacle sensing device according to claim 8 is characterized in that a slide permission means that allows the sliding portion 45 to slide only when the obstacle sensing device 1 senses an obstacle is provided on the opening / closing body 4. It is provided.

  In the structure of the opening / closing body provided with the obstacle sensing device, the malfunction of the slide portion 45 before the obstacle B is sensed is prevented.

  The structure of the opening / closing body provided with the obstacle sensing device according to claim 9, wherein the front end side of the opening / closing body 4 swings to one of the front and back surfaces of the opening / closing body 4 after sliding by the slide portion 45. It is possible to do this.

  In the structure of the opening / closing body provided with this obstacle sensing device, the gap S1 is enlarged by swinging in addition to the gap S by sliding.

In the structure of the opening / closing body provided with the obstacle sensing device according to claim 10, a seat plate 57 is provided at the front end of the opening / closing body 4 in the closing direction,
The slide portion 45 is disposed between the slat of the opening / closing body 4 and the seat plate 57.

  In the structure of the opening / closing body provided with this obstacle sensing device, the slide portion 45 for removing the obstacle can be concentratedly arranged in the vicinity of the seat plate at the front end of the opening / closing body.

  According to the structure of the opening / closing body provided with the obstacle sensing device according to the first aspect of the present invention, the opening / closing body includes a slide portion that further moves the front end side of the opening / closing body in the anti-closing direction after the sensing piece is moved. Therefore, it is possible to form a gap between obstacles by moving the front end side of the opening / closing body in the anti-closing direction, for example, an obstacle sandwiched between concave and convex portions, or a concave shape. Even a flexible obstacle or the like that changes can be easily removed by passing the convex portion through the formed gap.

  According to the structure of the opening / closing body provided with the obstacle sensing device according to claim 2, since the opening / closing direction of the opening / closing body is the lifting / lowering direction, the sliding portion is held in a non-sliding state by the weight of the opening / closing body, The distal end side of the body can be placed on the closing side. As a result, the removal function after the obstacle is caught can be maintained, and the sliding portion can be moved in the anti-closing direction after the sensing piece is moved in the anti-closing direction.

  According to the structure of the opening / closing body provided with the obstacle sensing device according to claim 3, the slide portion is composed of a long hole in the anti-closing direction and a pin that engages with the long hole. It becomes a structure and can be manufactured with easy processing.

  According to the structure of the opening / closing body provided with the obstacle sensing device according to claim 4, since the covering member for concealing the elongated hole is provided in the opening / closing body, a flame that attempts to pass through the opening / closing body through the elongated hole, Smoke or the like can be blocked by the covering member, and the deterioration of the fireproof and smokeproof performance due to the formation of the long hole can be prevented.

  According to the structure of the opening / closing body provided with the obstacle sensing device according to claim 5, the covering member is formed in a Z-shaped cross section including a fixing portion, a covering portion, and a continuous portion. The member can increase the rigidity of the opening / closing body and prevent the opening / closing body from being bent or deformed. Thereby, the wind-resistant intensity | strength of an opening-closing body can be improved. Further, as a structure in which the cover portion is slidably contacted with a seat plate provided on the distal end side of the opening / closing body, the cover portion can be effectively used as a slide guide for the cover member. Thereby, smooth sliding of the covering member can be realized.

  According to the structure of the opening / closing body provided with the obstacle sensing device according to claim 6, the slide portion has a recess having a slide space extending in the anti-closing direction, and a slide slidably fitted into the slide space of the recess. Therefore, by sliding the slide plate in the slide space of the recess, the front end side of the opening / closing body can be slid without providing a long hole.

  According to the structure of the opening / closing body provided with the obstacle sensing device according to claim 7, since the opening / closing body is provided with the detecting means for detecting the movement of the opening / closing body in the anti-closing direction, the sensing piece is moved. After the opening / closing body is stopped, even if the slide part is slid and the sensing piece is separated from the obstacle, the sensing state of the obstacle is continuously held by the signal from the detecting means, and the opening / closing body is stopped. This prevents the obstacle from being caught by the reclosing movement of the opening / closing body.

  According to the structure of the opening / closing body having the obstacle sensing device according to claim 8, since the opening / closing body is provided with the slide permission means that enables the sliding portion to slide only when the obstacle is sensed, the obstacle sensing is performed. Previously, it is possible to prevent the slide portion from malfunctioning, to ensure the slide after the obstacle is detected, and to improve the reliability of the obstacle removing function.

  According to the structure of the opening / closing body provided with the obstacle sensing device according to claim 9, the front end side of the opening / closing body can swing to one of the front and back surfaces of the opening / closing body after sliding by the slide portion. Therefore, in addition to the gap due to the slide, the gap can be enlarged by swinging, and the obstacle can be removed more easily.

  According to the structure of the opening / closing body provided with the obstacle sensing device according to claim 10, the seat plate is provided at the front end of the opening / closing body in the closing direction, and the slide portion is disposed between the slat of the opening / closing body and the seat plate. Therefore, the slide portion for removing the obstacle can be concentratedly arranged in the vicinity of the seat plate at the front end of the opening / closing body. As a result, the slide part can be compactly configured, maintenance can be facilitated, and an easy retrofitting configuration by additional construction is also possible. In other words, the above-described functions can be added to the existing opening / closing body. It becomes.

Preferred embodiments of the structure of an opening / closing body provided with an obstacle sensing device according to the present invention will be described below in detail with reference to the drawings.
1 is a schematic front view of a shutter having a structure of an opening / closing body according to the present invention, FIG. 2 is a cross-sectional view of the opening / closing body at the time of suspension, and FIG. 3 is an enlarged perspective view of a main part of FIG.
The structure of the opening / closing body provided with the obstacle sensing device according to the present invention is such that the opening / closing body having the obstacle sensing device at the front end portion, for example, the door tip, the lower / lower end, the drainer, the seat plate, etc., that is, from one of the building openings. The present invention can be applied generally to an opening / closing body that moves to the other side, such as a sliding door. In addition, the opening / closing direction of the opening / closing body may be an up / down (lifting / lowering) direction, a horizontal direction, an oblique direction, or the like. Furthermore, as a movable form of the opening / closing body, the slat curtain may be extended or wound, or the vertical sliding door or the horizontal sliding door may be lifted or reciprocated. The structure of the opening / closing body itself may be a sheet, a screen, a pipe, a net, or the like, or a combination of these. In the following embodiments, a case where the structure of the opening / closing body is applied to a lifting shutter will be described as an example.

First, prior to the description of the structure of the opening / closing body that is the main part of the present invention, an outline of the obstacle sensing device provided in the opening / closing body will be described.
As shown in FIG. 1, the obstacle sensing device 1 is provided on an electric shutter 3 disposed in a building opening 2 or the like. This electric shutter 3 serves as a moving end of a slat curtain as an opening / closing body, such as a fire shutter configured by a slat curtain 4 as an opening / closing body or a panel shutter (not shown) including a panel plate as an opening / closing body. The obstacle sensing device 1 is disposed at the drainage portion which is the lowest end.

  As shown in FIG. 2, the obstacle sensing device 1 is roughly composed of a frame body 5, a sensing piece 16, an operating piece 22, and a sensing means 32.

  First, the outer periphery of the frame 5 is covered with a cover member 41 made of a sheet metal material. The cover member 41 has a vertical engaging piece 7 to which the connecting plate 6 engaged with the slat curtain 4 is fixed. The frame 5 has a top plate 8 and a pair of side plates 9 and 10 that extend vertically downward from both end edges of the top plate 8 and face each other. The cross section is formed in a substantially U-shaped cross-section in which a groove opening 11 is formed which is directed toward the edge 2a and is continuous with the width direction of the building opening 2 as a longitudinal direction.

  In the groove opening 11 of the frame body 5, the groove openings 11 of the frame body 5 extend inward from the lower ends of the side plates 9 and 10 that form both edges of the groove opening 11. A pair of support strips 12 are formed integrally with the frame body 5 so as to narrow the opening width of 11.

  Further, on the inner side surfaces 9a, 10a of the both side plates 9, 10 of the frame 5, a pair of pieces 13, 14 are provided at the midway positions facing each other so as to extend horizontally inward of the frame 5. The frame 5 is provided continuously in the longitudinal direction. One piece portion 13 provided on one inner side surface 9a of these piece portions 13 and 14 has a shaft portion 15 having a circular cross section formed at the tip thereof.

  Next, the sensing piece 16 is formed along the longitudinal direction of the frame body 5 and has a flat plate-like substrate 17 capable of closing the groove opening 11 of the frame body 5, and at both edges 17 a and 17 b in the width direction, A pair of sliding side plates 19 are formed so as to protrude substantially vertically upward from the substrate 17 via a bent portion 18 in the upper surface direction.

  Flange-like ridges 20 and 21 extending outward in the width direction are provided integrally with each sliding side plate 19 on the upper edge 19a which is the tip of these sliding side plates 19, and this sliding side plate 19 In addition, it is formed in a substantially L shape.

  The sensing piece 16 is attached to and supported by the frame 5 so that the pair of protrusions 20 and 21 are suspended on the support strips 12 of the frame 5. The upper edge 19a is located inside the frame body 5 so that it can enter and exit the groove opening 11 of the frame body 5, that is, the sliding side plates 19 are provided so as to be movable up and down between the support strips 12. It is like that.

  Next, the operating piece 22 is a long member that passes through in the longitudinal direction of the frame 5 similarly to the sensing piece 16, and a bearing portion 24 having a C-shaped cross section is formed at the base end portion 23. A pair of long and short contact portions 26 and 27 are formed to extend from the end portion 23 through a hollow midway portion 25 at the tip end.

  In the present embodiment, the shape of the hollow portion 28 of the midway portion 25 is formed in a substantially S shape in which a continuous space portion is formed by combining two fan shapes made of ¼ arcs having different diameters, and the bearing portion. 24 has an upward curved surface 29 having an approximate center 24, and a downward curved surface 30 opposite to the upward curved surface 29. One contact portion 26 of each contact portion 26, 27 has a proximal end. It is formed in a flat plate shape that extends straight through the hollow portion 28 and the upward curved surface 29 with respect to the bearing portion 24 of the portion, and the other abutting portion 27 is formed by the one abutting portion 26. It is formed in the shape of a short, curved plate located below and continuing to the downward curved surface 30 of the hollow portion 28. A substantially hook-shaped contact convex portion 31 is formed on the upper surface of the one abutting portion 26 near the midway portion 25.

  The working piece 22 is pivotally supported by a shaft portion 15 projecting from one inner side surface 9a of the frame body 5 at the bearing portion 24 of the base end portion 23. The abutment portions 26 and 27 on the distal end side are swingable in the vertical direction, and one abutment portion 26 abuts on the upper edge of the sensing piece 16 on the one ridge 20 side, and the other The abutment portion 27 abuts on the upper edge of the sensing piece 16 on the other protrusion 21 side. In the present embodiment, the one abutting portion 26 abuts the upper surface of one ridge (left side in FIG. 2) 20 at the tip edge of the abutting portion 26 away from the base end portion 23 of the operating piece 22. The other abutment portion 27 is configured such that the distal end side outer surface abuts on a corner portion of the other protrusion (right side in FIG. 2) 21 at a position close to the base end portion 23 of the operating piece 22.

  Next, the detection means 32 is composed of a micro switch in which an actuator 33 projects downward, and is provided at a predetermined angle via a bracket 34 fixed to the lower surface of the upper plate 8 in the frame 5. It has been.

  The inclination angle of the micro switch 32 is set so as to be in the same direction as the tangential direction of the movement locus of the contact convex portion 31 formed on the upper surface of the one abutting portion 26 by the swing of the operating piece 22, That is, the straight forward and backward direction of the actuator 33 of the microswitch 32 is set to be the tangential direction, and the microswitch 32 is disposed.

  The actuator 33 of the microswitch 32 is composed of an actuator portion 35 of the microswitch 32 itself and a substantially V-shaped leaf spring 36 that is bent in the middle and always in contact with the actuator portion 35. The tip of the leaf spring 36 is set so as to face the contact convex portion 31 on the upper surface of the one abutting portion 26 of the operating piece 22. The micro switch 32 detects the swing of the operating piece 22, that is, the swing of the operating piece 22 in the frame body 5.

  The microswitch 32 is provided only at one location near one end in the longitudinal direction of the frame body 5 and, as shown in FIG. Are electrically connected to a fixed transmitter 38.

  As shown in FIG. 1, the transmitter 38 is disposed so as to face a receiver 39 provided on the bottom surface of the storage portion 3 a of the slat curtain 4 disposed on the upper edge of the building opening 2. The receiver 39 is connected to a control device (not shown), and the raising / lowering control of the slat curtain 4 is performed.

Next, the structure of the opening / closing body that is the main part of the present invention will be described.
As described above, the obstacle sensing device 1 is configured such that when the slat curtain 4 is closed, the sensing piece 16 provided at the front end in the closing direction of the slat curtain 4 hits the obstacle, thereby causing the sensing piece 16 in the anti-closing direction. The movement is detected and the slat curtain 4 is actuated to stop closing. In the structure of the opening / closing body according to the present embodiment, after the sensing piece 16 is moved, the slat curtain 4 is further provided with a slide portion 45 that can move the distal end side of the slat curtain 4 in the anti-closing direction. Here, the front end side means a member side below the cover member 41 suspended from the slat curtain 4 via the connecting plate 6. Further, the movement of the sensing piece 16 in the anti-closing direction means that the sensing piece 16 moves relative to the anti-closing direction with respect to the slat curtain (opening / closing body) 4 to which the sensing piece 16 is connected. In addition, the shutter curtain (opening / closing body) 4 and the sensing piece 16 both include moving absolutely, either one is moving absolutely and the other is absolutely moving It includes things that are stopped.

  As shown in FIG. 3, the cover member 41 includes a rectangular column part 47 that covers the frame body 5, and an engagement piece 7 that stands at the center of the rectangular column part 47. The slide portions 45 are a plurality of long holes 49 in the anti-closing direction of the slat curtain 4, four in FIG. 1 and two in FIG. 3. The long holes 49 are arranged at predetermined intervals, for example, at a pitch of approximately 600 mm. , 49 and screws 51, 51 which are pins engaged with the long holes 49, 49. The engaging piece 7 has a screw 51, 51 penetrating through the connecting plate 6 passing through the long holes 49, 49, and nuts 53, 53 screwed into the tips thereof, so that the connecting plate is slidable in the vertical direction. 6 is fixed. Normally, the member below the engagement piece 7 is supported at the upper ends of the long holes 49, 49 by gravity, as shown in FIG. In this state, the member below the engagement piece 7 can slide upward.

  As described above, the slide portion 45 includes the long holes 49 and 49 that are long in the anti-closing direction and the screws 51 and 51 that are engaged with the long holes 49 and 49. Therefore, the slide portion 45 has a simple structure and is manufactured with easy processing. Can be done. In addition, you may form the long holes 49 and 49 by the substantially inverted triangular shape which expands upwards, for example. With such a substantially inverted triangular elongated hole, when the connecting plate 6 is lifted, it becomes possible to lift one of the longitudinal directions of the connecting plate 6 so as to be inclined. Either one of the hole of the connecting plate 6 through which the screws 51 and 51 penetrate and the hole of the engagement piece 7 may be a long hole in the anti-closing direction, or both are long holes in the anti-closing direction. There may be. For example, the hole of the connecting plate 6 through which the screws 51 and 51 pass may be a long hole in the anti-closing direction like the long hole 49.

  As described above, in the structure of the opening / closing body, a sliding portion 45 that is slidable in the reverse direction (anti-closing direction) while an obstacle is being sensed is provided in a part of the slat curtain 4. About 50-70 mm is suitable for the slide movement distance in this slide part 45 at the point which achieves the enlargement suppression of a slide structure and obstruction removal effects, such as a human body.

  Further, a cover member 55 is provided between the connecting plate 6 and the engagement piece 7 to hide the long holes 49, 49. The cover member 55 is restricted from sliding upward by an abutting end portion 6 a that is bent at the lower end of the connecting plate 6. In this way, the long holes 49, 49 are covered by the covering member 55, so that a flame or the like that attempts to pass through the slat curtain 4 through the long holes 49, 49 is blocked by the covering member 55, and the long holes 49, 49 49 prevents the fire performance from deteriorating.

  Here, the covering member 55 is parallel to the connecting plate 6 that is a part of the slat curtain 4, and is parallel to the fixing portion 55 a that is in close contact with the connecting plate 6 and the engaging piece 7 that is a part of the slat curtain 4. The cover portion 55b is spaced apart from the engagement piece 7 and the connecting portion 55c is perpendicular to the engagement piece 7 and connects the fixing portion 55a to the cover portion 55b. Can do. Thus, the covering member 55 is formed in a Z-shaped cross section, so that the rigidity of the slat curtain 4 can be increased and the slat curtain 4 can be prevented from being bent or deformed. Thereby, the wind-resistant strength of the slat curtain 4 can be improved. Further, as the structure in which the cover portion 55 b is slidably contacted with the cover member 41 provided on the distal end side of the slat curtain 4, the cover portion 55 b can be effectively used as a slide guide for the cover member 55. Thereby, the smooth slide of the covering member 55 is realizable.

  The cover member 41, the frame body 5, and the cover member 55 suspended by the connecting plate 6 constitute a seat plate 57. Thus, since the seat plate 57 is provided at the front end of the slat curtain 4 in the closing direction, and the slide portion 45 is disposed between the slat curtain 4 and the seat plate 57, the slide portion 45 for removing the obstacle is provided. Can be concentrated in the vicinity of the seat plate 57. Thereby, while being able to comprise the slide part 45 compactly, a maintenance can be made easy and also the easy retrofitting by the additional construction which replaces only the member below the connection board 6 can also be made possible.

  In the present embodiment, the opening / closing direction of the slat curtain 4 is the ascending / descending direction. Thus, since the opening and closing direction of the slat curtain 4 is the up-and-down direction, the sliding portion 45 is held in a non-sliding state by the weight of the seat plate 57 that is a part of the slat curtain 4, so Can be arranged on the closing side (lower side). Accordingly, it is possible to maintain the removal function after the obstacle is caught, and it is possible to realize the movement of the slide portion 45 in the anti-closing direction (upward) after the sensing piece 16 is moved in the anti-closing direction.

  In this example, the opening / closing direction of the slat curtain 4 is the up / down direction. However, as described above, the opening / closing direction of the opening / closing body may be the horizontal direction or the closing direction. In this case, for example, when the closing direction is an upward direction, an urging means, for example, a spring member or the like for preventing the slide in the slide portion 45 from occurring before the sensing piece 16 is movable in the closing direction, It is desirable to dispose the opening / closing body so as to protrude in the closing movement direction.

Next, the operation of the structure of the opening / closing body provided with the obstacle sensing device will be described.
FIG. 4 is a cross-sectional view at the time of landing on the front end side of the opening / closing body, and FIG. 5 is an operation explanatory view showing a normal obstacle sensing state.
As shown in FIG. 4, first, when the slat curtain 4 is lowered by a closing operation and the seat plate 57 comes into contact with the edge 2a of the building opening 2, the sensing piece 16 is raised with respect to the frame 5 by the edge 2a. Then, the upper edge 19a side of the sensing piece 16 starts to enter inward of the frame body 5. The approaching action of the sensing piece 16 to the frame 5 is the same as when the sensing piece 16 comes into contact with an obstacle.

  That is, as shown in FIG. 5, when the slat curtain 4 is lowered by the closing operation, if there is an obstacle B below the slat curtain 4, the substrate 17 of the sensing piece 16 contacts the obstacle B.

  The sensing piece 16 is raised with respect to the frame 5 by the obstacle B, and the upper edge 19a side of the sensing piece 16 starts to enter inward of the frame 5.

  As a result, the operating piece 22 swings (rotates) upward about the shaft support portion of the base end portion 23 via the contact portions 26 and 27 in contact with the upper edge 19a of the sensing piece 16. To start.

  At the same time, as shown in FIG. 5, the upper surface on the tip end side of one contact portion 26 of the operating piece 22 pushes up the operating element 33 of the microswitch 32, whereby the microswitch 32 outputs a detection signal, and the transmitter This signal is transmitted to the receiver 39 via 38 by radio such as infrared rays. On the receiver 39 side, this detection signal is sent to a control device (not shown), whereby the drive motor M shown in FIG. 1 is stopped and the descent of the slat curtain 4 is stopped.

FIG. 6 is an operation explanatory diagram illustrating the sensing state of the concavo-convex obstacle, and FIG. 7 is an operation explanatory diagram illustrating a state in which the distal end side of the opening / closing body is slid from the sensing state illustrated in FIG.
Here, as shown in FIG. 6, even when the obstacle B has an uneven shape and the recess Ba is sandwiched between the seat plates 57, the sensing piece 16 operates and stops the drive motor M, A brake (not shown) is operated, and the descent of the slat curtain 4 is stopped. In the structure of the conventional opening / closing body, in the case of the convex obstacle B shown in FIG. 5 in such a stopped state of the slat curtain 4, it is lifted by using a slight clearance (about several millimeters) of the slat curtain 4. The obstacle B can be removed, but in the case of the concave obstacle B shown in FIG. 6, the removal is impossible by the peaks Bb and Bb.

  On the other hand, in the structure of the opening / closing body according to the present embodiment, as shown in FIG. 7, the lower side of the sensing piece 16 is lifted upward so that the engaging piece 7 is engaged with the screws 51, 51 of the connecting plate 6. Is slid along the long holes 49, 49, and as a result, the seat plate 57 including the sensing piece 16, the cover member 41, and the frame 5 can be moved upward. That is, by moving the distal end side of the slat curtain 4 in the anti-closing direction, a gap S is formed between the distal end side of the slat curtain 4 and the obstacle B, and the obstacle sandwiched between the concave and convex concave portions Ba. Even in the case of B, the convex portion Bb can pass through the formed gap S.

  When the sensing piece 16 is detached from the obstacle B, the sensing piece 16 returns to its initial state by its own weight, and is built in the return force of the leaf spring 36 provided in the microswitch 32 and the actuator unit 35 of the microswitch 32. The operating piece 22 also returns to the initial state due to the minute return force of the compression spring (not shown) (see FIG. 2).

  Therefore, according to the structure of the opening / closing body provided with the obstacle sensing device 1, the slide part 45 that allows the distal end side of the slat curtain 4 to move further in the anti-closing direction after the sensing piece 16 is moved is formed on the slat curtain 4. Since it is provided, a gap S can be formed between the slat curtain 4 and the obstacle B by moving the tip side of the slat curtain 4 in the anti-closing direction. For example, the obstacle B sandwiched between the concave and convex portions Ba Even if it exists, an easy removal can be enabled by allowing the convex part Bb to pass through the formed gap S.

Next, a modified example of the structure of the above opening / closing body will be described.
In addition, in each following modification, the same code | symbol shall be attached | subjected to the member and site | part same as the member and site | part shown to FIGS. 1-7, and the overlapping description shall be abbreviate | omitted.
FIG. 8 is an explanatory view of a modified example in which the cross-sectional view before the slide of the structure provided with the detecting means is shown in FIG.
In the structure of the opening / closing body according to this modification, the detecting means 71 for detecting the movement of the slat curtain 4 in the anti-closing direction is provided on the seat plate 57 (for example, the upper plate 8 of the frame 5). It has been. As the detection means 71, for example, a micro switch, a pressure sensor, a tape switch, or the like can be used. As shown in FIG. 8B, the detection means 71 enables the rise of the seat plate 57 to be detected when the seat plate 57 is slid upward and the presser 71 a is pressed by the connecting portion 55 c.
In this modification, since the detecting means 71 is provided on the slat curtain 4, the sensing piece 16 is moved and the slat curtain 4 is stopped, and then the slide portion 45 is slid so that the sensing piece 16 is separated from the obstacle B. Even if this is done, the sensing state of the obstacle B continues to be held by the signal from the detecting means 71, and the slat curtain 4 is stopped. This prevents the obstacle B from being caught by the reclosing movement of the slat curtain 4.

FIG. 9 is an explanatory diagram of a modified example in which a cross-sectional view before sliding of a slide portion including a concave portion and a slide plate is shown in (a), and a cross-sectional view after sliding is shown in (b).
In the structure of the opening / closing body according to this modification, the slide portion 45A includes a recess 73 having a slide space 72 extending in the anti-closing direction, and a slide plate 74 slidably fitted into the slide space 72 of the recess 73. . In the recess 73, the upper edge plate 73 a is fixed to the connecting plate 6. The lower end edge of the slide plate 74 is connected to the engagement piece 7.
Therefore, when the seat plate 57 comes into contact with the obstacle B, as shown in FIG. 9B, the slide plate 74 is slid upward in the slide space 72 and the seat plate 57 is moved in the anti-closing direction. It becomes.
According to this modification, the slide portion 45A includes the recess 73 having the slide space 72 extending in the anti-closing direction and the slide plate 74 that is slidably fitted into the slide space 72 of the recess 73. By sliding the slide plate 74 in the slide space 72 of 73, the front end side of the slat curtain 4 can be slid without providing the long holes 49, 49.

FIG. 10 is an explanatory view of a modified example in which the sectional view before sliding of the structure in which the concave portion is in sliding contact with the seat plate is shown in (a) and the sectional view after sliding is shown in (b).
In the structure of the opening / closing body according to this modification, the slide portion 45B is formed by bringing the recess 73 shown in FIG. 9 into contact with the seat plate 57, that is, the side surface of the cover member 41. Therefore, the seat plate 57 is supported by two places: the engagement between the slide plate 74 and the recess 73 and the contact between the cover member 41 and the recess 73.
According to this modification, there are two places where the seat plate 57 is supported, and the swing of the seat plate 57 can be prevented. Moreover, the front end side of the slat curtain 4 can be slidable without providing the long holes 49.

FIG. 11 is an explanatory view of a modified example in which a sectional view before sliding of a structure in which a T-shaped slide plate is engaged in a recess is shown in (a), and a sectional view after sliding is shown in (b).
In the structure of the opening / closing body according to this modified example, the slide portion 45C has a concave portion 76 having a concave slide space 75 fixed to the connecting plate 6 and a T-shape that is slidably fitted in the slide space 75. And a slide plate 77. The slide plate 77 is prevented from falling off the slide space 75 by the flanges 76a and 76a formed at the lower end opening edge of the recess 76.
Therefore, when the seat plate 57 contacts the obstacle B, as shown in FIG. 11B, the slide plate 77 is slid upward in the slide space 75, and the seat plate 57 is moved in the anti-closing direction. It becomes.
According to this modification, the slide portion 45C includes the recess 76 having the slide space 75 extending in the anti-closing direction and the slide plate 77 slidably fitted into the slide space 75 of the recess 76. By sliding the slide plate 77 into the 76 slide spaces 75, the front end side of the slat curtain 4 can be slid without providing the long holes 49. Further, the recess 76 can be easily manufactured by using a drawing material or the like.

FIG. 12 is an explanatory view of a modification in which a cross-sectional view before sliding of a structure covered with a covering member in which long holes are stacked is shown in (a), and a cross-sectional view after sliding is shown in (b).
In the structure of the opening / closing body according to this modification, the cover member 55 shown in FIG. 2 is a cover member 55A made of a flat plate, so that the slide portion 45D is formed. Therefore, it does not have the cover part 55b (refer FIG. 2) which slidably contacts the side surface of the cover member 41. FIG. Therefore, when the seat plate 57 comes into contact with the obstacle B, as shown in FIG. 12 (b), the long holes 49, 49 are moved along the screws 51, 51, and the engagement piece 7 is slid upward. The seat plate 57 is moved in the anti-closing direction.
According to this modification, the long holes 49, 49 are covered with the covering member 55A made of a flat plate, and the slide portion 45D can be formed with a simple structure.

FIG. 13 is an explanatory diagram of a modified example in which detection means is provided in the configuration of FIG.
In the structure of the opening / closing body according to this modification, the detecting means 71 is provided on the seat plate 57 (for example, the upper plate 8 of the frame 5) shown in FIG. As the detection means 71, the thing similar to the above can be used. As shown in FIG. 13 (b), when the seat plate 57 is slid upward, the detecting means 71 is pressed down by the pressing piece 78 bent at the lower end of the covering member 55A, and the seat plate 57 It is possible to detect an increase in
In this modification, since the detecting means 71 is provided on the slat curtain 4, the sensing piece 16 is moved and the slat curtain 4 is stopped, and then the slide portion 45 is slid so that the sensing piece 16 is separated from the obstacle B. Even if this is done, the sensing state of the obstacle B continues to be held by the signal from the detecting means 71, and the slat curtain 4 is stopped. This prevents the obstacle B from being caught by the reclosing movement of the slat curtain 4 with a simple structure.

FIG. 14 is an explanatory view of a modified example in which a cross-sectional view before sliding of the structure in which the covering member is omitted is shown in (a), and a cross-sectional view after sliding is shown in (b).
In the structure of the opening / closing body according to this modification, the cover member 55 is a slide part 45E. Therefore, when the seat plate 57 comes into contact with the obstacle B, as shown in FIG. 14 (b), the long holes 49, 49 are moved along the screws 51, 51, and the engagement piece 7 is slid upward. The seat plate 57 is moved in the anti-closing direction.
According to this modification, the oval holes 49 and 49 are exposed by omitting the cover member 55, but the slide portion 45E can be formed with a simple structure, and the obstacle can be removed.

FIG. 15 is a cross-sectional view of a seat plate supported so as to be swingable before sliding (a), a cross-sectional view after sliding is shown in (b), and a cross-sectional view after swinging is shown in (c). FIG.
In the structure of the opening / closing body according to this modification, the front end side of the slat curtain 4 can swing to either one of the front and back surfaces of the slat curtain 4 after sliding by the slide portion 45. This swing structure can be configured by dividing the lower end of the engagement piece 7 and the cover member 41 and connecting the divided engagement piece 7 and the cover member 41 with a hinge 79.
In the structure of this opening / closing body, first, when the seat plate 57 contacts the obstacle B, as shown in FIG. 15 (b), the long holes 49, 49 are moved along the screws 51, 51, and the engagement pieces 7 is slid upward, and the seat plate 57 is moved in the anti-closing direction. When the seat plate 57 is pressed from either one of the front and back surfaces of the slat curtain 4 in this state, the seat plate 57 is connected to the front and back surfaces of the slat curtain 4 via the hinge 79 as shown in FIG. Will be swung to the other side.
According to this modification, the front end side of the slat curtain 4 can swing to either one of the front and back surfaces of the slat curtain 4 after sliding by the slide portion 45. The gap S1 can be enlarged also by the movement, and the obstacle B can be removed more easily.
In this example, if the cover member 55 is a bent product made of a steel plate or the like, it is possible to bend the cover portion 55b by applying an external force of a predetermined level or more. It can also be made expandable.
Furthermore, the cover member 55 may be a flexible sheet material having fire resistance, and the closed side end of the flexible sheet material and the cover member 41 may be fastened together. By doing in this way, when the front end side of the slat curtain 4 swings, the covering member is also deformed, and a larger gap S1 can be secured.

The structure of the opening / closing body provided with the obstacle sensing device 1 according to the present invention is provided with a slide permission means that allows the slide portion 45 to slide only when the obstacle sensing device 1 senses an obstacle. It is preferable that
By providing such a slide permission means on the opening / closing body, it is possible to prevent only the slide portion 45 from malfunctioning before the obstacle is detected. Thereby, the slide after an obstacle detection is ensured, and the reliability of an obstacle removal function can be improved more.
Further, the force due to the weight of the member below the engaging piece excluding the sensing piece 16 is made larger than the restoring force of the actuator 33 of the micro switch 32. By doing so, before the seat plate 57 is moved in the anti-closing direction, the sensing piece 16 can move and sense an obstacle, and the amount of slide necessary to remove the obstacle after sensing the obstacle is reduced. It can be secured.

It is a schematic front view of the shutter which has the structure of the opening-closing body which concerns on this invention. It is sectional drawing at the time of suspension of the opening-and-closing body tip side. It is a principal part expansion perspective view of FIG. It is sectional drawing at the time of landing of the opening-and-closing body front end side. It is operation | movement explanatory drawing showing the detection condition of a normal obstruction. It is operation | movement explanatory drawing showing the detection condition of an uneven obstacle. It is operation | movement explanatory drawing showing the condition where the opening-and-closing body front end side was slid from the sensing state shown in FIG. It is explanatory drawing of the modification which represented the cross-sectional view before the slide of the structure provided with the detection means to (a), and represented the cross-sectional view after a slide to (b). It is explanatory drawing of the modification which represented the cross-sectional view before the slide of the slide part which consists of a recessed part and a slide board to (a), and represented the cross-sectional view after a slide to (b). It is explanatory drawing of the modification which represented the cross-sectional view before the slide of the structure which made the recessed part slidably contacted to the seat board, and represents the cross-sectional view after a slide to (b). It is explanatory drawing of the modification which represented the cross-sectional view before the slide of the structure which engaged the T-shaped slide board in the recessed part to (a), and represented the cross-sectional view after a slide to (b). It is explanatory drawing of the modification which represented the cross-sectional view before the slide of the structure covered with the covering member which laminated | stacked the long hole to (a), and represented the cross-sectional view after a slide to (b). It is explanatory drawing of the modification which provided the detection means in the structure of FIG. It is explanatory drawing of the modification which represented the cross-sectional view before the slide of the structure which abbreviate | omitted the cover member to (a), and represented the cross-sectional view after a slide to (b). It is explanatory drawing of the modification which represented the cross-sectional view before the slide of the seat plate supported so that rocking was possible (a), the cross-sectional view after the slide (b), and the cross-sectional view after the rocking (c). .

Explanation of symbols

1 ... Obstacle sensing device 4 ... Opening / closing body (slat curtain)
16 ... Sensing piece 45 ... Slide part 49 ... Long hole 51 ... Pin (screw)
55 ... Cover member 55a ... Fixing portion 55b ... Cover portion 55c ... Consecutive portion 57 ... Seat plate 71 ... Detection means 72 ... Slide space 73 ... Recess 74 ... Slide plate B ... Obstacle

Claims (10)

Provided with an obstacle sensing device for stopping movement of the opening / closing body by detecting movement of the sensing piece in the anti-closing direction by contacting a sensing piece provided at a front end of the opening / closing body in the closing direction. The structure of the open / close body,
A structure of an opening / closing body provided with an obstacle sensing device, wherein the opening / closing body is further provided with a slide portion that allows the distal end side of the opening / closing body to move in the anti-closing direction after the sensing piece is moved. .   2. The structure of an opening / closing body having an obstacle sensing device according to claim 1, wherein the opening / closing direction of the opening / closing body is a lifting / lowering direction.   The structure of an opening / closing body having an obstacle sensing device according to claim 1, wherein the slide portion includes a long hole long in the anti-closing direction and a pin engaged with the long hole.   4. The structure of an opening / closing body having an obstacle sensing device according to claim 3, wherein a covering member for concealing the elongated hole is provided on the opening / closing body.   The cover member includes a fixing part parallel to the opening / closing body and closely contacting the opening / closing body, a covering part parallel to the opening / closing body and spaced from the opening / closing body, and the fixing part perpendicular to the opening / closing body. 5. The structure of an opening / closing body having an obstacle sensing device according to claim 4, wherein the structure is formed in a Z-shaped cross section comprising a continuous portion connected to the cover portion.   The obstacle according to claim 1 or 2, wherein the slide portion includes a concave portion having a slide space extending in the anti-closing direction and a slide plate that is slidably fitted into the slide space of the concave portion. Structure of an opening / closing body with an object sensing device.   2. The structure of an opening / closing body having an obstacle sensing device according to claim 1, wherein the opening / closing body is provided with detecting means for detecting the movement of the opening / closing body tip side in the anti-closing direction.   2. The opening / closing device with an obstacle sensing device according to claim 1, wherein the opening / closing body is provided with a slide permission means that allows the sliding portion to slide only when an obstacle is sensed by the obstacle sensing device. Body structure.   2. The obstacle sensing device according to claim 1, wherein a front end side of the opening / closing body can swing to either one of front and back surfaces of the opening / closing body after sliding by the slide portion. Opening and closing body structure. A seat plate is provided at the end of the opening / closing body in the closing direction,
2. The structure of an opening / closing body having an obstacle sensing device according to claim 1, wherein the slide portion is disposed between a slat of the opening / closing body and the seat plate.

Images