JP2012162900A - Motor-driven door serving also as eaves - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a motor-driven door serving also as eaves, which allows smooth and sure opening/closing operation of a door body and is highly safe in a simple structure.SOLUTION: The motor-driven door serving also eaves includes: a freely-bendable door body 1 comprising an upper door plate 11 whose upper end part is hinge-connected to a building skeleton 5 forming an opening A and a lower door plate 12 hinge-connected to the lower edge of the upper door plate; guide rollers 15 attached to both sides at the lower part of the lower door plate 12; a guide rail 4 for guiding the movement in the vertical direction of the guide rollers 15; and a door driving mechanism 2 for making driving force in the vertical direction act on the lower door plate 12. The door body 1 can be displaced between an open position for turning the opening A to a fully open state and a closed position for turning the opening A to a fully closed state. At the open position, the lower door plate 12 forms the eaves horizontally overhung to the front of the opening on the opening A. At the closed position, the connection part of the upper door plate 11 and the lower door plate 12 is turned to an obtuse projection angle 13 and bent to the front side of the opening A.

Description

  The present invention relates to an electric door provided in a housing opening of a store or other building, and more particularly, to an electric door for a bag that has a structure in which a door body becomes a bag when the opening is fully opened.

  2. Description of the Related Art Conventionally, there is known an electric door having a structure in which a door body forms a ridge on the opening when the opening closed by a bendable door body composed of a pair of upper and lower door plates is fully opened.

  For example, as an electric door of this type, a wire is passed between a winding shaft that is installed on the ceiling surface of the building and the lower end of the door body, and the door body is opened by winding the wire around the winding shaft. A structure having a structure in which a pair of upper and lower door plates (panels) are connected in a planar shape and the opening is closed by bending the wire into an acute angle and forming a ridge and then rewinding the wire (Patent Document 1).

Japanese Utility Model Publication No. 5-20864

  However, in the folding door described in Patent Document 1, since the pair of upper and lower door plates constituting the door main body are connected in a planar shape when the opening is closed, the winding shaft is used to wind the wire to open the opening. When rotating in the direction, not only a large starting torque is required, but depending on the wire connection position, the door body does not bend even if the winding shaft torque is applied to the winding shaft, which automatically opens the opening. This causes a problem that it cannot be opened.

  In addition, in the folding door of Patent Document 1, the door body in the open state may be inadvertently closed due to a failure of the drive device, an erroneous operation, a broken wire, or the like.

  The present invention has been made in view of the circumstances as described above, and an object of the present invention is to provide an electric door for both a bag and a high safety with a simple structure capable of smoothly and surely opening and closing the door body. There is.

In order to achieve the above object, the present invention
A flexible door body comprising an upper door plate hinged at the upper end to a building frame forming an opening and a lower door plate hinged to the lower edge of the upper door plate, and attached to both lower sides of the lower door plate. A pair of left and right guide rollers, a pair of left and right guide rails that are set up on both sides of the door body to guide the guide rollers to move in the vertical direction, and a motor that rotates in the forward and reverse directions as a drive source, And a door drive mechanism for applying a driving force of
The door body is displaceable between an open position where the opening is fully opened and a closed position where the opening is fully closed by the driving force of the door drive mechanism,
In the open position, the lower door plate forms a ridge that projects horizontally on the opening in front of the opening, and in the closed position, the connecting portion of the upper door plate and the lower door plate is an obtuse convex shape. It is characterized by bending toward the front side of the opening as a corner.

  In addition, the drive source constituting the door drive mechanism is a non-excitation actuated motor with a brake.

  Further, when the door body is in the open position, the door body includes a lock means for restraining the lower door board from being lowered toward the closed position, and the lower door board by the lock means. It is provided with a detector that detects the restraint of the door and deactivates the drive source of the door drive mechanism.

  Furthermore, when the said door main body exists in the said open position, it is provided temporarily with the said guide rail, The temporary support | pillar which supports the both-sides edge part of the said lower door board from the downward direction is provided.

  According to the electric door for both wings according to the present invention, when the door body is in the closed position in which the opening is fully closed, the connecting portion between the upper door plate and the lower door plate is formed as an obtuse convex angle on the front side of the opening. Therefore, when the door body is moved to the open position, the lower part of the lower door plate is pulled up without causing an overload to the drive source, thereby moving the door body smoothly and reliably to the open position. Can be made.

  Further, since the drive source is a non-excitation actuated motor with a brake, even if a power failure occurs when the door body is in the open position, the door body can be held in the open position by the braking force of the drive source.

  In addition, when the door main body is in the open position, the door main body is in the open position because the door main body is provided with a locking means that restrains the lower door plate from being lowered toward the closed position by restraining the lower door plate. Even when the drive source breaks down and the braking force is lost, the door body can be prevented from dropping rapidly due to its own weight.

  In addition, since it has a detector that detects the restraint of the lower door plate by the lock means and deactivates the drive source, the drive operation of the drive source can be performed without forgetting that the lower door plate is restrained by the lock means. Even if it is carried out, it is possible to prevent the lock means from being destroyed by keeping the drive source in an inoperative state.

  Furthermore, when the door main body is in the open position, the temporary support pillars that support both side edges of the lower door plate from below are provided, so that the door main body in the open position can be prevented from being inadvertently lowered.

Schematic front view showing an electric door combined with a bag according to the present invention Schematic side view showing the electric door Partial enlarged view showing the lower side of the lower door plate Explanatory drawing which shows the state which moves a door main body to a closed position Side schematic diagram with the door drive mechanism omitted Explanatory drawing which shows the state which installed the temporary support column Partial enlarged view showing the locking device

  Hereinafter, the present invention will be described in detail with reference to the drawings. First, in FIG. 1, 1 is a door main body which opens and closes the opening part of a building frame, and this door main body 1 is bendable by a horizontally long upper door plate 11 and a lower door plate 12 hinged to the lower edge of the upper door plate. It is configured.

  On the other hand, 2 is a door drive mechanism for opening and closing the door body 1, and this door drive mechanism 2 transmits a drive source 21 having an output shaft for rotationally driving in the forward and reverse directions and its output to the door body 1. And a winding transmission mechanism 22. Among these, the drive source 21 is a non-excitation actuated motor with a brake, and a sprocket 21a is attached to the output shaft.

  The winding transmission mechanism 22 includes a rotary shaft 22a installed on the ceiling of the building along the upper edge of the opening that is opened and closed by the door body 1, a sprocket 22b attached to the central portion of the rotary shaft 22a, and a sprocket. An endless chain 22c wound between 21a and 22b, a pair of left and right sprockets 22d attached to both ends of the rotating shaft 22a, a pair of left and right sprockets 22f connected by the endless chain 22e, and the sprocket 22f Sprocket 22g coaxially attached, sprocket 22h coaxially attached to one of the sprockets 22f, 22g, sprocket 22i provided below the sprocket 22h, and pulling up to apply an upward driving force to the lower door plate 12 Downward with respect to the chain 22j and the lower door plate 12 It is constituted by cuts chain 22k like exerting power. Among them, the lifting chain j is wound around the sprocket g and one end thereof is connected to both lower sides of the lower door plate 12, and the lowering chain 22k is wound between the sprockets 22h and 22i, and one end thereof is connected to the lower door plate 12. It is connected to the lower side of the.

  A sprocket 22m is mounted coaxially with the sprockets 22f, 22g, and 22h, and the sprocket 22m and the manual operation unit 3 are connected by an endless chain 31. The manual operation unit 3 is a structure including a sprocket 32 around which a chain 31 is wound, and a handle 33 for rotating the sprocket 32. By rotating the handle 33, the sprockets 22g, 22h and the like are manually moved forward and backward. It is possible to rotate it.

  In FIG. 1, reference numeral 4 denotes a pair of left and right guide rails erected on both sides of the door body 1, and guide rails, which will be described later, are moved and guided by the guide rails 4 when the door body 1 is opened and closed. It is configured.

  Next, in FIG. 2, A is an opening of the building housing 5 that is opened and closed by the door body 1, and this opening A is a pair of left and right columns 53 that are erected between the foundation 51 of the building and the girder 52. (Only one of the columns is shown in FIG. 2) and a beam member 54 installed between the columns 53.

  In FIG. 2, reference numeral 55 denotes a horizontal shaft that constitutes the building housing 5 together with the girders 52 and the columns 53, and the horizontal shaft 55 is installed along the upper end edge of the opening A.

  The door body 1 has an open position (a position indicated by a solid line in FIG. 2) in which the upper end of the upper door plate 11 is hinged to the horizontal shaft 55 and the opening A is fully opened, and the opening A It is possible to displace between a fully closed state (a position closed by a one-dot chain line in FIG. 2).

  In particular, in the open position, the upper door plate 11 and the lower door plate 12 are bent at an acute angle, and among these, the lower door plate 12 forms a ridge that protrudes horizontally in front of the opening A on the opening A. Forms a slanted lower house that is in a position covering the lower door plate 12 and has a downward slope from the connecting portion with the horizontal shaft 55 toward the connecting portion with the lower door plate 11.

  Further, in the closed position, the upper door plate 11 and the lower door plate 12 are not connected to each other in a planar shape, and the joint portion (the hinge-joined bent portion) is bent to the front side of the opening A as an obtuse angled convex angle 13. It has become.

  Here, the guide rail 4 is a flat plate-like long structure, and a guide hole 41 is formed along the longitudinal direction thereof. As is clear from FIG. 2, the guide rail 4 is erected on the floor slab F along the column 53 and is fixed to the column 53 by a connecting member 56 laid between the column 53.

  In FIG. 2, S1 and S2 are sensors for detecting an object positioned in front of the opening A (photoelectric tube switch comprising a light emitting part and a light receiving part provided on both sides in the width direction of the opening A). When this is detected, the drive source 21 is not driven.

  On the other hand, as is apparent from FIG. 3, the shaft portion 14 penetrating the guide hole 41 of the guide rail 4 is fixed to both lower sides of the lower door plate 12, and the above-described guide roller 15 is attached to the shaft portion 14. . In the illustrated example, the guide roller 15 is a ball bearing, and its outer ring is in rolling contact with the guide hole 41. Rings 16 and 17 are fixed to the shaft portion 14 outside the guide rail 4. In FIG. 3, only one side portion of the lower door plate 12 is shown, but a similar shaft portion 14 is also fixed to the other side. However, in this example, two rings 16 and 17 are fixed to one shaft portion 14 as shown in FIG. 3, but only one ring 16 is fixed to the other shaft portion 14 (see FIG. 1). ).

  As apparent from FIG. 2, one end of a lifting chain 22j wound around the sprocket 22g is connected to the ring 16, and a weight W1 is attached to the other end of the lifting chain 22j. As is clear from FIG. 4, one end of a pull-down chain 22k wound between the sprockets 22h and 22i is connected to the ring 17, and a weight W2 is attached to the other end of the pull-down chain 22k. . The sprocket 22i is rotatably provided in a recess formed in the floor slab F.

  Thus, when the drive source 21 is driven to rotate the sprocket 22g in one direction (clockwise in FIG. 2), one end side of the lifting chain 22j connected to the ring 16 is lifted, and thereby the door body in the closed position. 1 moves to the open position indicated by the solid line in FIG. 2, and the opening A is fully opened. In addition, as above-mentioned, since the coupling | bond part of the upper door board 11 and the lower door board 12 is bent to the front side of the opening part A as the obtuse-shaped convex angle 13 in the closed position, the door main body 1 is moved to an open position. During the movement, the lower portion of the lower door plate 12 is pulled up without causing an overload on the drive source 21, and thus the door body 1 can be reliably moved to the open position.

  Further, when the drive source 21 is driven in the reverse direction to rotate the sprocket 22h in one direction (counterclockwise in FIG. 4), one end of the pull-down chain 22k connected to the ring 17 is pulled down, and thereby the door in the open position. The main body 1 moves to the closed position indicated by the one-dot chain line in FIG. 4 and the opening A is fully closed.

  Here, the angle of the convex angle 13 at the closed position (intersection angle between the upper door plate 11 and the lower door plate 12) is preferably set to 160 degrees to 170 degrees. In addition, when the convex angle 13 is 160 degrees or less, the forward protrusion amount is increased, and the appearance is impaired, and a gap for blowing wind and rain is likely to be generated on the side of the door main body 1. There is a high possibility that the movement will not be performed smoothly.

  Next, in FIG. 5, reference numeral 6 denotes a side panel formed from a stainless steel plate or the like. The side panels 6 are arranged on both sides of the door body 1 close to the guide rail 4. And according to this side panel 6, it can prevent that a rain and wind blows into the building frame 5 from the side of the door main body 1 in a closed position.

  In FIG. 6, reference numeral 7 denotes a temporary support post temporarily provided along with the guide rail 4 when the door main body 1 is in the open position. This temporary support post 7 has a handle 72 attached to a post main body 71 having a concave-shaped cross section. It is set to the installed configuration. According to the temporary support column 7, the both sides of the lower door plate 12 are detachably interposed between the lower door plate 12 of the door body 1 in the open position and the seat plate 42 fixed to the lower portion of the guide rail 4. Can be prevented from inadvertently descending the door body 1 in the open position. In addition, according to this temporary support column 7, the guide hole 41 of the guide rail 4 is shielded when the door body 1 is opened, and the appearance is not impaired.

  As described above, the temporary support column 7 functions as a safety device that also serves as a decorative material. However, the bag-mounted electric door according to the present invention is a door in the open position in addition to the temporary support column 7 as described above from the viewpoint of safety. The locking device 8 shown in FIGS. 2, 4 and 7 is provided as a locking means for restraining the lower door plate 12 of the main body 1 to prevent the door main body 1 from descending toward the closed position. .

  In FIG. 7, the locking device 8 includes a seat plate 81 fixed to the beam member 54, a movable shaft 82 penetrating the seat plate 81 in the vertical direction, a latch 83 fixed to the lower end of the movable shaft 82, and an upper end of the movable shaft 82. And a compression spring 85 provided on the outer periphery of the movable shaft 82 between the seat plate 81 and the top plate 84. According to the locking device 8, when the door body 1 is in the open position, the latch 83 is rotated while being pulled down to engage the lower door plate 12 with its tip, thereby restraining the lower door plate 12 and lowering the lower door plate 12. Is suppressed. According to this, when the door main body 1 is in the open position, for example, even when the drive source 21 breaks down and the braking force is lost, the door main body 1 can be prevented from dropping rapidly due to its own weight.

  A lock hole (not shown) for inserting and locking the front end of the latch 83 is formed on the end surface of the lower door plate 12. On the seat plate 81, a detector S3 that is pressed by the top plate 84 when the latch 83 is inserted and locked in the lock hole of the lower door plate 12 is provided. The detector S3 is electrically connected to a control device (not shown) that controls the drive of the drive source 21, and has a circuit configuration in which the drive source 21 is inoperative when it is pressed. Yes. In short, the detector S3 detects the restraint of the lower door plate 12 by the locking device 8 and deactivates the drive source 21. According to this, the lower door plate 12 is restrained by the locking device 8. Even when the drive operation of the drive source 21 is performed forgetting this, it is possible to prevent the lock device 8 from being destroyed by keeping the drive source 21 in an inoperative state.

  As mentioned above, although the specific example of this invention was demonstrated based on drawing, the electric door also used for a fence is not restricted to the above structures. For example, an electric winch can be used as the door driving mechanism 2 and the door body 1 can be opened and closed by winding and rewinding the wire.

  Further, when the chain drive system as in the above example is used as the door drive mechanism 2, instead of using the pull-up chain 22j and the pull-down chain 22k, for example, the other end of the pull-down chain 22k whose one end is connected to the ring 17 is used. The pull-down chain 22k may also be used as the pull-up chain 22j by connecting to the ring 17.

DESCRIPTION OF SYMBOLS 1 Door main body 11 Upper door board 12 Lower door board 13 Convex angle 14 Shaft part 15 Guide roller 2 Door drive mechanism 21 Drive source 22 Winding transmission mechanism 22j Pull-up chain 22k Pull-down chain 4 Guide rail 41 Guide hole 5 Building housing A Opening 7 Temporary installation Prop 8 Locking device (locking means)
S3 detector

Claims (5)

A flexible door body comprising an upper door plate hinged at the upper end to a building frame forming an opening and a lower door plate hinged to the lower edge of the upper door plate, and attached to both lower sides of the lower door plate. A pair of left and right guide rollers, a pair of left and right guide rails that are set up on both sides of the door body to guide the guide rollers to move in the vertical direction, and a motor that rotates in the forward and reverse directions as a drive source, And a door drive mechanism for applying a driving force of
The door body is displaceable between an open position where the opening is fully opened and a closed position where the opening is fully closed by the driving force of the door drive mechanism,
In the open position, the lower door plate forms a ridge that projects horizontally on the opening in front of the opening, and in the closed position, the connecting portion of the upper door plate and the lower door plate is an obtuse convex shape. A heel / door that is bent toward the front side of the opening as a corner. 2. The combined electric door as claimed in claim 1, wherein the drive source constituting the door drive mechanism is a non-excitation actuated motor with a brake. 3. A lock means for restraining the lower door plate from being lowered toward the closed position by restraining the lower door plate when the door main body is in the open position. The electric door for both the above described. 4. The coffin electric door according to claim 3, further comprising a detector that detects the restraint of the lower door plate by the locking means and deactivates the drive source of the door drive mechanism. When the door body is in the open position, temporary pillars are provided along with the guide rails, and temporary pillars for supporting both side edges of the lower door plate from below are provided. The electric door for both a bag and an electric head according to item 1.

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