JP5260096B2 - Sliding automatic door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To secure a safety even if there is a clearance between a door and a mullion of a fixed wall. <P>SOLUTION: This automatic sliding door has: a sensor part 54 detecting an object before it is caught in the clearance between the door 14 and the mullion 24 of the fixed wall 12 when the door 14 slides into an open position from a closed position; and a controller for stopping the door 14 or driving the door 14 toward the closed position, based on the detection of the object by the sensor part 54. The sensor part 54 has a vertically long tubular cover 55 formed of a soft material, and a photoelectric sensor 56 projecting and receiving light in the cover 55. The door side part of the mullion 24 is provided with a sensor holding part 50 for holding the cover 55. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a sliding automatic door.

Conventionally, as disclosed in Patent Documents 1 and 2 below, a slide type automatic door having a door having a structure in which a glass plate is held by a casing is known. In the slide type automatic door disclosed in Patent Document 1, even if there is no left-over portion when fully opened, the door is designed to prevent fingers from being caught between the fixed wall stand and the door casing. The glass plate is fixed to the housing in a state where the glass plate is moved toward the fixed wall, and the step between the glass plate and the housing is minimized or eliminated. Moreover, in the slide type automatic door disclosed in Patent Document 2, a plate glass is further bonded to a glass plate fixed to the housing, thereby eliminating a step between the housing and the glass plate.
JP 2004-278286 A JP 2006-274647 A

  However, even if the step between the casing and the glass plate is eliminated as disclosed in Patent Documents 1 and 2, there is a risk that fingers may be caught between the fixed wall stand and the door. The problem remains. In other words, even when the door is pressed against the fixed wall due to wind pressure or atmospheric pressure difference between indoor and outdoor, the stationary wall A gap of about 5 mm is provided between the door and the door, and this gap corresponds to the size of a child's finger that is most likely to pinch the finger. For this reason, the conventional sliding door is not sufficient as a safety measure.

  Moreover, since the height of the door increases as the opening height at which the door opens and closes, the taller the door, the easier it is to bend due to wind pressure or atmospheric pressure difference. As a result, if the height of the opening is high, it is difficult to avoid the gap between the standing wall of the fixed wall and the door becoming large and the gap between which the fingers are pinched.

  Therefore, the present invention has been made in view of such a point, and an object of the present invention is to ensure safety even if there is a gap between the fixed wall stand and the door.

In order to achieve the above object, the present invention provides an automatic door that is slidable along the fixed wall between an open position along the fixed wall and a closed position where the door has advanced from the open position to the opening. A sensor unit capable of detecting an object before being sandwiched in a gap between the fixed wall stand and the door when the door slides from the closed position to the open position ; and a door side in the stand a sensor holding portion provided over the entire portion in the height direction based on the detection of an object by the sensor unit, have a, and a control unit for driving to stop or closed position direction of the door, The sensor unit has a tubular cover made of a soft material and long in the vertical direction, and a photoelectric sensor that projects and receives light within the cover, and the sensor unit is provided in a part of the vertical direction in the vertical. To the sensor holder It is lifting a sliding automatic door that is held by the sensor holding part dummy member having the same external shape is provided and the cover to the rest.

The present invention has a sensor unit capable of detecting an object such as a finger before the object such as a finger is sandwiched in the gap between the fixed wall stand and the door, and the door is driven and controlled based on the detection by the sensor unit. Therefore, for example, a finger can be prevented from being caught in the gap. Therefore, even if there is a gap between the fixed wall stand and the door, safety can be ensured.
In addition, the sensor unit has a tubular cover made of a soft material and long in the vertical direction, and a photoelectric sensor that projects and receives light within the cover, and the photoelectric sensor performs light projection and reception within the cover. It can be made less susceptible to disturbances such as light and dust. In addition, since the cover is made of a soft material, if the sensor part does not operate for some reason and a finger or the like is sandwiched between the stand and the door, the cover is easily deformed and damaged. Can be suppressed.
The sensor portion is provided in a part of the vertical in the vertical direction and held by the sensor holding portion, and a dummy member having the same external shape as the cover is provided in the remaining portion and held by the sensor holding portion. As a result, a dummy member is provided at a height position where no cover is provided, and a cover of the same size is applied to a sliding automatic door applied to an opening having a different opening height. Is possible. As a result, the sensor unit can be shared, and an increase in cost can be suppressed. In addition, since what is necessary is just to arrange | position a sensor part in the range which a passer's hand reaches, even if it makes a sensor part common, safety will not be inhibited.
In addition, since the sensor holding part is provided over the whole height direction of the door side portion in the vertical, it prevents the appearance when viewed in the direction orthogonal to the door slide direction from being adversely affected. However, the sensor unit can be held.

  Here, it is preferable that the sensor unit is disposed between the vertical and the door so as to be within the projection surface of the vertical when viewed in a direction orthogonal to the sliding direction of the door. . In this aspect, since the sensor unit is disposed between the vertical and the door in a state where the sensor unit is within the vertical projection surface, it is possible to suppress an adverse effect on the appearance due to the sensor unit being disposed. it can.

  The cover may include a cover main body and a shutter portion provided in the cover main body and blocking a light path of the photoelectric sensor by deformation of the cover main body. In this aspect, the light path can be blocked by the shutter portion with only a slight deformation of the cover body. For this reason, even if it is a case where a cover main body has become a state which is hard to deform | transform by secular change etc., degradation of the detection sensitivity by a sensor part can be suppressed.

  In this aspect, the sensor holding part may have an engaging part that engages the cover by assembling the cover from the opening side. In this aspect, since the cover can be assembled from the opening side with respect to the sensor holding portion, the construction work can be facilitated.

  The cover has an engaged portion that can be engaged with the engaging portion, and the engaged portion sandwiches the engaging portion from both sides and engages with the engaging portion. Also good. In this aspect, when the cover is assembled to the sensor holding part, the engaged part made of a soft material is deformed, and the engaged part is engaged with the engaging part so as to sandwich the engaging part from both sides. Therefore, the assembly work of the sensor unit can be made easier.

  Moreover, the structure which has an engaging part which engages the said cover by assembling | attaching the said cover from the door side may be sufficient as the said sensor holding | maintenance part. In this aspect, the cover is assembled to the sensor holding portion from the door side, and the sensor holding portion does not exist in the door sliding direction of the cover. For this reason, when the photoelectric sensor or the like breaks down, the door is not driven in the stop or closed position direction, so that even when a finger or the like is pinched and the cover receives a force in the sliding direction of the door, the sensor holding portion Can not be received directly. As a result, even if the photoelectric sensor or the like breaks down and the door is not driven in the direction of the stop or closed position, even if the finger or the like is sandwiched between the vertical and the door, the finger or the like is greatly affected. Thus, the fail-safe property can be mechanically improved.

  Moreover, it is preferable that the said fixed wall has a flat plate part, and this flat plate part is being fixed to the said stand in the state brought near to the said door. In this aspect, since the flat plate portion is disposed in a state of being moved to the opposite side of the door, the vertical direction of the fixed wall is longer than the configuration in which the flat plate portion is disposed in the central portion of the vertical wall. An increase in thickness in the direction (perpendicular to the door slide direction) can be suppressed.

  The stand has an auxiliary sensor holding portion that holds an auxiliary sensor capable of projecting and receiving light crossing the opening, and the auxiliary sensor is on the opposite side of the opening to the cover. The cover may be configured to have an opening or a transparent portion that can transmit light of the auxiliary sensor. In this aspect, it is possible to arrange the auxiliary sensor and the sensor unit while suppressing an increase in the thickness of the fixed wall in the depth direction.

  In addition, the door includes a flat plate portion and a frame body that holds the flat plate portion, and the flat plate portion is held by the frame body in a state of being brought close to a surface facing the vertical of the fixed wall. It may be a configuration. In this aspect, the gap between the flat plate portion of the door and the vertical can be minimized, and safety can be improved.

  As described above, according to the present invention, safety can be ensured even if there is a gap between the fixed wall stand and the door.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

(Embodiment 1)
1 and 2 are sectional views showing a sliding automatic door (hereinafter simply referred to as an automatic door) 10 according to a first embodiment. FIG. 1 is a top view and FIG. 2 is a side view. Is. As shown in the figure, the automatic door 10 is a one-way automatic door 10 having a door 14 that can slide along a fixed wall 12.

  The fixed wall 12 is fixed to a three-way frame 18 fixed to the building. The three-way frame 18 includes a pair of vertical frames 18a and 18b that are arranged at a distance from each other, and an invisible 18c that is installed between the upper ends of the vertical frames 18a and 18b. The invisible eye 18c houses a drive mechanism (not shown) for opening and closing the door 14, a controller (not shown) that can control the drive mechanism, and the like.

  An openable / closable inspection port (not shown) is provided on the indoor surface of the eyeless 18c. In addition, in this embodiment, since the case where the one automatic door 10 is provided is demonstrated, although an inspection port will be arrange | positioned indoors, the windbreak room which has a pair of automatic door 10 is in a building. In the case of being provided, the automatic door 10 may be arranged so that the inspection port is arranged on the opposite sides. That is, in this case, the outdoor automatic door 10 is provided with an inspection port on the indoor side, and the indoor automatic door 10 is provided with an inspection port on the outdoor side. become.

  The fixed wall 12 closes substantially half of the opening defined by the three-way frame 18, and the opening 20 defined by the three-way frame 18 and the fixed wall 12 serves as an entrance / exit of the building, and the door 14 covers the opening 20. Open and close.

  The fixed wall 12 includes a pair of uprights 23 and 24 arranged at a distance from each other, and a flat plate portion 25 made of a transparent plate (for example, a glass plate) fixed to the uprights 23 and 24. The vertical frame 18b side edge (end portion vertical) 23 is joined to the three side frame 18 vertical frame 18b, and the opening 20 side vertical (middle vertical) 24 is a substantially central position between the vertical frames 18a and 18b. Specifically, the door bottom of the door 14 in the closed position is disposed at an adjacent position, and is supported by the floor surface 27 and the invisible eye 18c.

  Each of the end vertical 23 and the central vertical 24 includes a parallel portion 29 having a long cross section in a direction parallel to the flat plate portion 25, and a vertical portion 30 protruding from the end of the parallel portion 29 toward the outdoor side. And has an L shape in plan view. However, the end vertical 23 and the neutral 24 are symmetrical to each other. The flat plate portion 25 is fixed to a surface on the outdoor side of the parallel portion 29 via a caulking 31. The protruding width of the vertical portion 30 from the parallel portion 29 is substantially equal to the thickness of the flat plate portion 25 plus the thickness of the caulking 31.

  The door 14 is a door 14 having a configuration in which a flat plate portion 33 made of a transparent plate (for example, a glass plate) is fixed to a frame. A door rod 34 and a door rod 35 constituting the frame are joined to a parallel portion 37 extending in the moving direction of the door 14 and an end portion of the parallel portion 37, and the parallel portion 37. And a vertical portion 38 projecting to the outdoor side, and has an L-shaped cross section.

  The flat plate portion 33 is disposed on the outdoor side of the parallel portion 37 and is fixed to the parallel portion 37 via a caulking 39. The flat plate portion 33 is held by the vertical rods 34 and 35 in a state where the flat plate portion 33 is brought close to the surface of the vertical rods 34 and 35 facing the fixed wall 12 (outdoor side). In this state, the flat plate portion 33 has its outdoor side surface substantially coincided with the outdoor side surface of the vertical portion 38 of the vertical rods 34 and 35.

  The door 14 can reciprocate between an open position that is a position along the fixed wall 12 and a closed position that has advanced into the opening 20 from the open position. FIG. 1 shows the door 14 in the closed position. When the door 14 is in the closed position, the door bottom side vertical bar 35 of the door 14 and the neutral stand 24 overlap each other when viewed in a direction perpendicular to the door sliding direction. On the other hand, when the door 14 is in the open position, the door tip side vertical rod 34 of the door 14 and the neutral stand 24 overlap each other. In addition, a steady rest 43 is provided at the lower end of the door 14, and the steady rest 43 is inserted into a groove of a guide rail 44 provided on the floor surface 27.

  Packings 41 and 42 made of rubber are provided on the vertical rod 34 on the door end side and the vertical rod 35 on the door bottom side, respectively. The packing 41 provided on the vertical rod 34 on the door end side is provided with a protruding portion 41 a having a shape protruding in the moving direction of the door 14. When the door 14 is in the closed position, the projection 41a of the packing 41 on the door-end side comes into contact with the vertical frame 18a of the three-way frame 18, so that the packing 41 is in contact with the packing 41 and the vertical frame 18a depending on how the packing 41 is attached. Can be prevented from becoming uneven, and the packing 41 can be prevented from gradually shifting due to long-term use.

  On the other hand, the packing 42 provided on the vertical rod 35 on the door bottom side is provided with a protruding portion 42 a that protrudes toward the neutral stand 24. When the door 14 is in the closed position, the protruding portion 42a contacts the neutral stand 24, and contributes to closing the gap between the vertical rod 35 and the neutral stand 24 and improving the airtightness.

  The neutral stand 24 has a configuration in which a stainless decorative plate 46 is wound around a core member 45 made of an extruded aluminum material, and the vertical portion 30 is formed by bending the decorative plate 46.

  The neutral stand 24 is provided with a sensor holding unit 50 and an auxiliary sensor holding unit 52. The sensor holding part 50 is a part for holding the sensor part 54 that can detect an object in front that is sandwiched in a gap between the neutral stand 24 and the door 14 when the door 14 slides from the closed position to the open position. Yes, it is provided at a portion of the neutral stand 24 on the door 14 side. In the first embodiment, the sensor holding unit 50 is provided at a position away from the opening 20 in the portion on the door 14 side.

  The sensor unit 54 includes a cover 55 and a photoelectric sensor 56 that projects and receives light within the cover 55. The cover 55 is made of a soft material such as rubber, and includes a cover main body 55a configured in a tubular shape that is long in the vertical direction, and an engaged portion 55b formed integrally with the cover main body 55a.

  The cover main body 55a is formed in a rectangular prismatic shape in plan view, and the engaged portion 55b is formed on one side thereof. The engaged portion 55b is a portion that is engaged with the engaging portion 50a of the sensor holding portion 50, and has a pair of claw portions 55c that protrude in directions away from each other. The engaging part 50a of the sensor holding part 50 is constituted by a core material 45 of the neutral stand 24, and has an insertion part that opens so that the engaged part 55b can be inserted, and the claw part 55c at the edge thereof. Engageable. And this insertion part is opened toward the opening part 20 between the neutral stand 24 and the vertical frame 18a. For this reason, when the cover 55 is assembled to the sensor holding unit 50, the cover 55 is assembled from the opening 20 side. At this time, the cover 55 can be assembled to the sensor holding part 50 by pushing the claw part 55c of the cover 55 into the insertion part while deforming it.

  The photoelectric sensor 56 includes a light projecting unit 56a capable of emitting light and a light receiving unit 56b capable of receiving light emitted from the light projecting unit 56a, and the inside of the cover 55 is used as the optical path. The light path extends in the vertical direction. When the cover body 55a is deformed by receiving an external force and the light path becomes narrower, the amount of light received by the light receiving unit 56b changes. 14 is detected.

  As shown in FIG. 2, the sensor unit 54 occupies a part in the vertical direction of the neutral stand 24. Since the sensor unit 54 is for detecting the pinching of a person's finger or the like, it is sufficient that the sensor unit 54 is disposed at a required height. And the dummy member 59 is arrange | positioned in the remaining site | parts. The dummy member 59 is the same as the cover 55 of the sensor unit 54 in appearance, and has the same cross-sectional area as the cover 55. That is, the sensor unit 54 is disposed in a space formed by the neutral stand 24, the sensor holding unit 50, and the door 14, but is disposed only in a part in the height direction of the space. A dummy member 59 is disposed so as to fill the remaining space. The dummy member 59 is also provided with an engaging portion similar to the cover 55 of the sensor portion 54 and is assembled to the sensor holding portion 50 similarly to the cover 55.

  In addition to the sensor unit 54 including the cover 55 and the photoelectric sensor 56 that projects and receives light within the cover 55, the sensor unit 54 includes, for example, a capacitive or piezoelectric sensor and a cover incorporating the sensor. The cover may be an elastic body such as rubber, or a resin or plastic that can be easily deformed.

  Since the neutral stand 24 has the core material 45 made of the extruded material, it is formed in a shape having the same cross section over the entire height direction. For this reason, it is difficult to employ a configuration in which a recess is provided in the neutral stand 24 only at a height at which the sensor unit 54 is disposed, and the sensor unit 54 is embedded in the recess. For this reason, the sensor holding part 50 is provided over the entire height of the neutral stand 24, the sensor part 54 is attached to a necessary range, and the dummy member 59 is attached to the remaining range.

  In the first embodiment, the sensor unit 54 occupies only the lower side of the space, and a dummy member 59 is disposed on the upper side. Note that the present invention is not limited to this mode, and the sensor unit 54 may be disposed in the middle portion of the space, and the dummy member 59 may be disposed on both the upper side and the lower side thereof. Further, the sensor unit 54 may be disposed over the entire space, and the dummy member 59 may not be provided.

  The auxiliary sensor holding part 52 is a part for holding the auxiliary sensor 61 capable of projecting and receiving light crossing the opening 20, and is provided at one place in the height direction in the parallel part of the neutral 24. . The other side auxiliary sensor 62 is also provided in the vertical frame 18 a facing the auxiliary sensor 61. The auxiliary sensors 61 and 62 are photoelectric tubes.

  Since the auxiliary sensor 61 is embedded in the neutral stand 24, the flat plate portion 25 is arranged so as to be moved to the outdoor side so as to avoid the auxiliary sensor 61. Thereby, it is suppressed that the thickness of the depth direction of the neutral stand 24 becomes large. A plurality of auxiliary sensors 61 and 62 may be provided. In this case, a plurality of auxiliary sensor holding parts 52 are provided in the height direction of the parallel part of the neutral stand 24.

  The output signal from the photoelectric sensor 56 and the output signals from the auxiliary sensors 61 and 62 are input to a controller as a control unit. When the controller determines that an object is detected by the sensor unit 54 due to the amount of light received by the photoelectric sensor 56 being reduced to a predetermined value or less during the opening operation of the door 14, the controller performs control to stop the door 14. That is, when the cover 55 is crushed by a finger or the like during the opening operation of the door 14 and the amount of light received by the photoelectric sensor 56 becomes a predetermined value or less, the door 14 is stopped. Thereby, it is possible to prevent a finger or the like from being caught in the gap between the neutral stand 24 and the door 14. Instead of this, the direction of movement of the door 14 may be reversed to drive in the closed position direction.

  As described above, the first embodiment includes the sensor unit 54 that can be detected before a finger or the like is sandwiched in the gap between the neutral wall 24 of the fixed wall 12 and the door 14. Since the door 14 is driven and controlled based on the detection, it is possible to prevent a finger or the like from being caught in the gap. Therefore, even if there is a gap between the standing wall 12 and the door 14, safety can be ensured.

  Moreover, in the first embodiment, the sensor unit 54 is disposed between the neutral stand 24 and the door 14 in a state where the sensor unit 54 is accommodated within the projection surface of the neutral stand 24. The adverse effect on can be suppressed. That is, the cover 55 made of a soft material such as rubber having a texture different from that of the stainless steel of the decorative plate 46 is not visible from the front of the opening 20, so that the appearance is not impaired.

  In the first embodiment, since the sensor unit 54 includes the cover 55 and the photoelectric sensor 56, the photoelectric sensor 56 can project and receive light within the cover 55, whereby sunlight, dust, etc. It can be made difficult to be affected by disturbance. Moreover, since the cover 55 is made of a soft material, the cover 55 can be easily removed when a finger or the like is sandwiched between the neutral 24 and the door 14 without the sensor unit 54 operating for some reason. Damage can be suppressed by deforming.

  Furthermore, in the first embodiment, since the dummy member 59 is provided at a height position where the cover 55 is not provided, the same dimensions as the sliding automatic door 10 applied to the opening 20 having different opening heights. The cover 55 can be applied. As a result, the sensor unit 54 can be shared, and an increase in cost can be suppressed. In addition, since the sensor part 54 should just be arrange | positioned in the range which a passer's hand reaches, even if it makes the sensor part 54 common, safety | security is not inhibited.

  Further, in the first embodiment, since the sensor holding portion 50 is provided at the portion on the door 14 side in the neutral stand 24, while preventing the adverse effect on the external appearance when viewed in the direction orthogonal to the door slide direction. The sensor unit 54 can be held.

  Moreover, in this Embodiment 1, since the said cover 55 is made to engage with the engaging part 50a of the sensor holding | maintenance part 50 by assembling the cover 55 from the opening part 20 side, construction work can be made easy. .

  Further, in the first embodiment, the flat plate portion is disposed at the end vertical 23 and the central vertical 24 in a state where the flat plate portion is moved to the opposite side of the door 14, so that the flat plate portion is disposed at the central portion of the vertical. Compared with the structure which was made, it can suppress that the thickness of the vertical direction of the fixed wall 12 (direction perpendicular | vertical to a door slide direction) becomes large.

  In the first embodiment, the flat plate portion of the door 14 is held by the vertical frames 18a and 18b of the three-way frame 18 in a state where the flat plate portion of the door 14 is brought close to the surface facing the neutral stand 24 of the fixed wall 12. The gap between the portion and the neutral 24 can be minimized, thereby improving the safety.

  In the first embodiment, the cover 55 is formed in a rectangular cross section and is wider than the width of the photoelectric sensor 56. Instead, the cover 55 has a cross section as shown in FIG. It is good also as a structure formed in square shape. In this aspect, the width of the cover 55 in the door sliding direction is reduced to the width of the photoelectric sensor 56, and the position of the engaging portion 50 a in the sensor holding portion 50 is set to a position closer to the opening 20. Yes. Thereby, compared with the structure of this Embodiment 1, the burden of an assembly work can be reduced.

(Embodiment 2)
FIG. 4 shows a second embodiment of the present invention. In 1st Embodiment, although the structure which has a pair of nail | claw part 55c which protrudes in the direction in which the to-be-engaged part 55b of the cover 55 leaves | separates mutually is demonstrated, in the 2nd Embodiment, the to-be-engaged part 55b approaches each other. It has a pair of nail | claw part 55c which protrudes. Although specifically described below, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  The engaging part 50a of the sensor holding part 50 is formed in a pair of protrusions protruding in directions away from each other in a direction perpendicular to the door sliding direction. On the other hand, the engaged portion 55b of the cover 55 has a pair of claw portions 55c that protrude in directions toward each other from both ends of one side that is long in the direction perpendicular to the door slide direction in the cover 55. When the cover 55 is assembled to the sensor holding unit 50, the cover 55 is assembled from the opening 20 side. At this time, the claw portion 55c is engaged while deforming the claw portion 55c on the neutral stand 24 side. The claw part 55c on the door 14 side is deformed and inserted into the gap between the engaging part 50a and the door 14 while being pushed into the gap between the part 50a and the neutral stand 24. As a result, the claws 55 c sandwich the engaging portion 50 a of the sensor holding portion 50 from both sides, and the cover 55 is attached to the sensor holding portion 50. In addition, as shown in FIG. 5, the nail | claw part 55c is good also as a shape where the outer surface is formed in the shape of an inclination, and thickness becomes thin toward the front end side. In the case of this configuration, the claw portion 55c can be easily inserted into the gap between the engaging portion 50a and the neutral stand 24 (or the door 14), so that the cover 55 can be more easily assembled to the sensor holding portion 50. Become.

  As shown in FIG. 4, the sensor unit 54 includes a shutter unit 65 that can block the optical path of the photoelectric sensor 56 with slight deformation. That is, the sensor unit 54 includes a rectangular tube-shaped cover main body 55a and a shutter unit 65 provided in the cover main body 55a. The shutter portion 65 is formed integrally with the cover main body 55a, and an extension portion 65a extending inward from the vicinity of the corner portion on the door 14 side and the opening portion 20 side of the cover main body 55a. And a movable portion 65b joined to the inner end portion of the extending portion 65a. One end of the movable portion 65b is connected to one side of the cover body 55a on the opening 20 side. Note that one end of the movable portion 65b may be provided so as to be in contact with one side of the opening 20 side. Since the movable portion 65b moves according to the concave behavior of the corner portion in the vicinity of the outer end portion of the extending portion 65a in the cover main body 55a, the optical path of the photoelectric sensor 56 is blocked by the operation of the movable portion 65b.

  Therefore, according to the second embodiment, the light path can be blocked by the shutter portion 65 with only a slight deformation of the cover main body 55a. For this reason, even if it is a case where the cover main body 55a is in a state where it is difficult to deform due to secular change or the like, it is possible to suppress deterioration in detection sensitivity by the sensor unit 54.

  In the second embodiment, when the cover 55 is assembled to the sensor holding unit 50, the engaged portion 55b made of a soft material is deformed so that the engaged portion 55b sandwiches the engaging portion 50a from both sides. Since it can be made to engage with the engaging part 50a, the assembly | attachment operation | work of the sensor part 54 can be made easier.

  In the second embodiment, the shutter unit 65 may be omitted. Further, the engaged portion 55b of the cover 55 may be configured similarly to the first embodiment. Other configurations, operations, and effects are the same as those in the first embodiment although the description thereof is omitted.

(Embodiment 3)
FIG. 6 shows a third embodiment of the present invention. Although specifically described below, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  In the first and second embodiments, the sensor unit 54 is assembled to the neutral stand 24 from the opening 20 side, but in the third embodiment, the sensor unit 54 is assembled to the neutral stand 24 from the door 14 side. It has a configuration. That is, the sensor holding part 50 includes a pair of engaging parts 50a extending from the door 14 side part of the neutral stand 24 in a state of being separated from each other along the moving direction of the door 14 (direction parallel to the opening 20). Have. The engaging part 50a is bent so that the tip part protrudes in a direction approaching each other, and between the engaging parts 50a is an insertion part through which the engaged part 55b can be inserted. In the present embodiment, the sensor holding unit 50 is formed by a decorative board 46. On the other hand, the engaged portion 55b of the cover 55 is formed on one side of the cover main body 55a, and is attached to the neutral stand 24 so that the one side becomes one side of the neutral stand 24 side. In this state, the width of the cover main body 55 a in the moving direction of the door 14 matches the width of the neutral stand 24. For this reason, no extra space is formed between the neutral stand 24 and the door 14. The photoelectric sensor 56 is disposed on the opening 20 side in the cover main body 55a.

  The engaged portion 55b has a pair of claw portions 55c protruding in a direction away from each other in the width direction of the cover main body 55a. And the cover 55 is assembled | attached to the sensor holding | maintenance part 50 by inserting the nail | claw part 55c in the insertion part between the engaging parts 50a of the sensor holding | maintenance part 50, and engaging this nail | claw part 55c with the engagement part 50a. In this state, the sensor holding part 50 does not exist on the side opposite to the opening part 20 with respect to the sensor part 54. For this reason, even when a finger or the like is sandwiched without being detected by the sensor unit 54 for some reason while the door 14 is moving from the closed position to the open position, the cover 55 generates a force generated by the movement of the door 14. Even if it is received, the sensor holding unit 50 does not directly receive the force.

  That is, in the third embodiment, the cover 55 is assembled to the sensor holding unit 50 from the door 14 side, and the sensor holding unit 50 does not exist in the door sliding direction of the cover 55. For this reason, even when a finger or the like is sandwiched and the cover 55 receives a force in the sliding direction of the door 14, the sensor holding unit 50 can be prevented from receiving this force directly. As a result, even when a finger or the like is sandwiched between the neutral stand 24 and the door 14, it is possible to prevent the fingers or the like that are sandwiched from being greatly affected.

  In the present embodiment, the configuration in which the width of the cover main body 55a is equal to the width of the neutral 24 is shown, but the present invention is not limited to this. That is, the cover main body 55a only needs to have a width that allows the photoelectric sensor 56 to be disposed, so that the width of the cover main body 55a can be made smaller than the width of the neutral stand 24, for example. In this case, the cover 55 may be disposed close to the opening 20 as shown in FIG. 7, or may be disposed close to the side opposite to the opening 20 as shown in FIG. .

  Further, the cover 55 may have a shutter portion 65.

  Other configurations, operations, and effects are the same as those in the first embodiment although the description thereof is omitted.

(Embodiment 4)
FIG. 9 shows a fourth embodiment of the present invention. Although specifically described below, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  In the first to third embodiments, the configuration in which the auxiliary sensor holding portion 52 is provided in the parallel portion 29 of the neutral stand 24 has been described. In the fourth embodiment, the auxiliary sensor holding portion 52 is a vertical portion of the neutral stand 24. 30. Therefore, since it is necessary to configure the width of the vertical portion 30 to be a width that can accommodate the auxiliary sensor 61, in the fourth embodiment, the width of the vertical portion 30 in the width direction of the fixed wall 12 is the first to third embodiments. Is bigger than. Instead, the thickness of the parallel portion 29 in the thickness direction of the fixed wall 12 is smaller than in the first to third embodiments. Therefore, in the fourth embodiment, the width of the neutral 24 in the width direction of the fixed wall 12 is larger than that in the first to third embodiments, while the thickness of the neutral 24 in the thickness direction of the fixed wall 12 is reduced. can do.

  The position of the sensor unit 54 may be arranged close to the opening 20 side as shown in FIG. 10, or close to the side opposite to the opening 20 side as shown in FIG. It is good also as a structure arranged. Further, the cover 55 may have a shutter portion 65.

  Other configurations, operations, and effects are the same as those in the third embodiment although the description thereof is omitted.

(Embodiment 5)
FIG. 12 shows a fifth embodiment of the present invention. Hereinafter, although it demonstrates concretely, the same code | symbol is attached | subjected to the same component as Embodiment 1, and the detailed description is abbreviate | omitted here.

  In the first to fourth embodiments, the configuration in which the sensor unit 54 and the auxiliary sensor 61 are shifted in the thickness direction of the fixed wall 12 has been described. However, in the fifth embodiment, the auxiliary sensor 61 and the sensor unit 54 are fixed. The auxiliary sensor 61 and the sensor portion 54 are arranged side by side in the sliding direction of the door 14, and the sensor portion 54 is fixed to the neutral 24. The auxiliary sensor 61 and the auxiliary sensor 62 fixed to the vertical frame 18a of the three-way frame 18 are positioned.

  In this configuration, a through-hole 55 d is formed in the cover 55 of the sensor unit 54 so as not to block the optical path of the auxiliary sensor 61. Instead of the configuration in which the through hole 55d is formed in the cover 55, the corresponding part of the cover 55 is formed of a transparent member, or the cover 55 is divided into upper and lower parts so that the cover 55 at the corresponding part is removed. May be.

  The auxiliary sensor holding part 52 is formed when the core material 45 of the neutral stand 24 is extended to the door 14 side (extension part). And the sensor holding | maintenance part 50 is provided in the place which extended the decorative board 46 of the neutral stand 24 to the door 14 side so that the extension part of the core material 45 may be covered.

  In the fifth embodiment, the auxiliary sensor 61 and the sensor unit 54 can be disposed while suppressing an increase in the thickness of the neutral stand 24 in the depth direction.

  As shown in FIG. 13, the auxiliary sensor holding unit 52 may be configured by a bracket 67 fastened to the decorative plate 46 in a state of being disposed outside the decorative plate 46 of the neutral stand 24. In this configuration, the sensor holding unit 50 can be provided at a portion on the door 14 side without extending the decorative plate 46 on the door 14 side.

  Further, the cover 55 may have a shutter portion 65.

  Other configurations, operations, and effects are the same as those in the third embodiment although the description thereof is omitted.

It is a horizontal sectional view of the automatic door concerning a 1st embodiment of the present invention. It is sectional drawing in the II-II line of FIG. It is a horizontal sectional view of the automatic door which concerns on the modification of 1st Embodiment. It is a horizontal sectional view of an automatic door concerning a 2nd embodiment of the present invention. It is a fragmentary sectional view of the cover in the modification of a 2nd embodiment. It is a horizontal sectional view which shows partially the automatic door which concerns on 3rd Embodiment of this invention. It is a horizontal sectional view of the automatic door which concerns on the modification of 3rd Embodiment. It is a horizontal sectional view of the automatic door which concerns on the modification of 3rd Embodiment. It is a horizontal sectional view of an automatic door concerning a 4th embodiment of the present invention. It is a horizontal sectional view of the automatic door which concerns on the modification of 4th Embodiment. It is a horizontal sectional view of the automatic door which concerns on the modification of 4th Embodiment. It is a horizontal sectional view of an automatic door concerning a 5th embodiment of the present invention. It is a horizontal sectional view of the automatic door which concerns on the modification of 5th Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 12 Fixed wall 14 Door 20 Opening part 23 End part standing 24 Middle standing part 25 Flat part 33 Flat part 34 Door end side vertical rod 35 Door bottom side vertical rod 50 Sensor holding part 50a Engagement part 52 Auxiliary sensor holding part 54 Sensor part 55 cover 55a cover body 55b engaged portion 55d through hole 56 photoelectric sensor 59 dummy member 61 auxiliary sensor 62 auxiliary sensor 65 shutter portion

Claims (9)

An automatic door that is slidable along the fixed wall between an open position along the fixed wall and a closed position advanced from the open position to the opening;
A sensor unit capable of detecting an object before the door is sandwiched in a gap between a standing wall of the fixed wall and the door when the door slides from the closed position to the open position;
A sensor holding portion provided over the entire height direction of the door side portion in the vertical,
Based on the detection of an object by the sensor unit, it has a, and a control unit for driving to stop or closed position direction of the door,
The sensor unit has a tubular cover made of a soft material and long in the vertical direction, and a photoelectric sensor for projecting and receiving light within the cover,
The sensor unit is provided in a part of the vertical in the vertical direction and is held by the sensor holding unit, and a dummy member having the same external shape as the cover is provided in the remaining part and held by the sensor holding unit. sliding automatic door that has been.   The said sensor part is arrange | positioned between the said stand and the said door so that it may settle in the projection surface of the said stand seeing in the direction orthogonal to the sliding direction of the said door. Sliding automatic door. 2. The sliding automatic door according to claim 1 , wherein the cover includes a cover main body and a shutter portion provided in the cover main body and blocking an optical path of the photoelectric sensor by deformation of the cover main body. The sliding automatic door according to claim 1 , wherein the sensor holding part has an engaging part that engages the cover by assembling the cover from the opening side. The cover has the engagement engageable engaged portion in engagement portion, the engagement portion of claim 4 to be engaged with the engaging portion by sandwiching from both sides of the engaging portion Sliding automatic door. The sliding automatic door according to claim 1 , wherein the sensor holding portion includes an engaging portion that engages the cover by assembling the cover from the door side.   The sliding automatic door according to claim 1, wherein the fixed wall has a flat plate portion, and the flat plate portion is fixed to the vertical wall in a state of being moved to the opposite side of the door. The vertical has an auxiliary sensor holding part for holding an auxiliary sensor capable of projecting and receiving light that crosses the opening,
The auxiliary sensor is disposed on the opposite side of the opening with respect to the cover,
The sliding automatic door according to claim 1 , wherein the cover has an opening or a transparent portion that can transmit light of the auxiliary sensor. The door has a flat plate portion and a frame body that holds the flat plate portion,
The sliding automatic door according to claim 1, wherein the flat plate portion is held by the frame body in a state where the flat plate portion is brought close to a surface of the fixed wall facing the vertical.

Images