JP2012026110A - Automatic door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an automatic door capable of being simply installed and easily opening and closing a door.SOLUTION: The automatic door includes a base extended in the longitudinal direction and a door part mounted on the base so as to be opened and closed along the longitudinal direction of the base. The base is provided with an opening/closing mechanism for opening and closing the door part.

Description

  The present invention relates to an automatic door that automatically opens and closes.

  Conventionally, various types of automatic doors are known as automatic doors (automatic doors).

  For example, as described in Patent Document 1 below, in an automatic door device including a folding door in which two doors are rotatably mounted, two support members fixed to both ends of the folding door, and the two Two hanger mechanisms that are rotatably connected to each of the support members, and are rotatably connected to the two support members, respectively, and the folding door is movably suspended on the rail, and in the opening and closing direction of the folding door. An endless strip that is stretched along and driven by an engine, a hanger mechanism for one door and a part of the endless strip, and a guide mechanism for guiding opening and closing of the one door. An automatic door having a stop member that limits the travel range of the other door is known.

Japanese Utility Model Publication No. 60-94575

  However, in the conventional automatic door, a drive mechanism including a rail and a motor for opening and closing the door is attached to the ceiling side. This is because the drive mechanism is a combination of relatively large members, so that the drive mechanism is mounted on the ceiling side so as not to obstruct the passage so that the automatic door does not obstruct the passage.

  Further, since the conventional automatic door has the above-described configuration, there is a problem that it cannot be easily installed so that it can be easily attached and detached. Furthermore, gates that can be installed simply are known in various structures, but the gate cannot be opened or closed easily by opening or closing the lever while operating the lever or lifting the gate. It has a structure. For this reason, there was a problem that the passer could not open and close the gate with luggage in both hands, which was very inconvenient.

  The present invention has been made to solve the above-described problems, and an object thereof is to provide an automatic door that can be easily installed and can be easily opened and closed.

  The automatic door according to the present invention includes a base extending in the longitudinal direction, and a door portion that is placed on the base so as to be openable and closable along the longitudinal direction of the base. Is provided with an opening / closing mechanism for opening / closing the door.

  According to the present invention, it is possible to provide an automatic door that can be easily attached and detached, can be easily installed, and can be easily opened and closed.

It is a perspective view which shows the structure of the automatic door which concerns on the 1st Embodiment of this invention. It is sectional drawing of the base of the automatic door which concerns on the 1st Embodiment of this invention. It is a partial cross section figure for demonstrating the structure of the opening / closing mechanism of the automatic door which concerns on the 1st Embodiment of this invention. It is a partial cross section figure for demonstrating the detailed structure of the opening / closing mechanism of the automatic door which concerns on the 1st Embodiment of this invention. It is a perspective view for demonstrating the modification of the opening / closing mechanism of the Aude door which concerns on the 1st Embodiment of this invention. It is a perspective view which shows the structure of the automatic door which concerns on the 2nd Embodiment of this invention. It is sectional drawing of the base of the automatic door of the 2nd Embodiment of this invention. It is a figure for demonstrating operation | movement of the automatic door which concerns on the 2nd Embodiment of this invention, (a) is a figure which shows the state which shrunk | reduced the width adjustment mechanism, (b) extended the width adjustment mechanism It is a figure which shows a state. It is a perspective view which shows the modification of the width adjustment mechanism of the automatic door of the 2nd Embodiment of this invention.

  Hereinafter, an automatic door according to the present invention will be described with reference to the drawings. The following embodiments do not limit the invention according to each claim, and all combinations of features described in the embodiments are not necessarily essential to the solution means of the invention. .

[First Embodiment]
FIG. 1 is a perspective view showing a structure of an automatic door according to the first embodiment of the present invention, and FIG. 2 is a sectional view of a base of the automatic door according to the first embodiment of the present invention. FIG. 4 is a partial cross-sectional view for explaining the structure of the opening / closing mechanism of the automatic door according to the first embodiment of the present invention, and FIG. 4 shows the details of the opening / closing mechanism of the automatic door according to the first embodiment of the present invention. FIG. 5 is a perspective view for explaining a modified example of the opening and closing mechanism for the Aude door according to the first embodiment of the present invention. In the following description, the direction indicated by the arrow in FIG. 1 is defined as the vertical direction of the page.

  As shown in FIG. 1, the automatic door 1 according to the present embodiment includes a base 10 extending in the longitudinal direction and a vertical direction that intersects with the longitudinal direction of the base 10 vertically on the base 10. The door portion 20 is erected and is placed so as to be openable and closable along the longitudinal direction of the base 10. In addition, the base 10 includes an opening / closing mechanism 30 that opens and closes the door 20.

  The automatic door 1 according to the present embodiment has a pair of frame bodies 13 and 13 erected from the upper surface of both ends of the base 10 in the longitudinal direction. The frame bodies 13 and 13 have a width adjustment described later. Mechanisms 51 and 52 are attached. As shown in FIG. 2, the base 10 is configured by attaching slopes 11 to both sides of the opening / closing mechanism 30. Also, a cover 12 is attached to the upper surface of the opening / closing mechanism 30, and the cover 12 prevents dust and dust from adhering to the opening / closing mechanism 30 and hindering its operation.

  The cover 12 can protect the opening / closing mechanism 30 from falling of dust and dirt.

  As described above, the automatic door 1 according to the present embodiment is provided with the opening / closing mechanism 30 having the heaviest weight among the constituent members below the automatic door 1 according to the present embodiment. Therefore, the automatic door 1 according to the present embodiment is installed. In this case, the center of gravity is lowered and stable installation can be performed.

  As shown in FIG. 1, the door part 20 is comprised as a folding door attached so that axial rotation was possible so that the 1st door 23 and the 2nd door 24 might be folded in half in the connection part. Furthermore, the door portion 20 includes a fixed support shaft 21 and a movable support shaft 22 at both ends in the longitudinal direction of the base 10. Further, the fixed support shaft 21 is formed so as to protrude below one end of the second door 24, and is attached to the base 10 so as to be rotatable about the shaft. The movable support shaft 22 protrudes below one end of the first door. And is attached to the opening / closing mechanism 30 so as to be rotatable. The fixed support shaft 21 is formed so as to protrude above one end of the second door 24, and is attached to the upper portion of the frame body 13 so as to be rotatable. The axis centers of the upper and lower fixed support shafts 21 and 21 are substantially coincident.

  Thus, the fixed support shaft 21 and the movable support shaft 22 are attached to the base 10 and the opening / closing mechanism 30, respectively, so that the shaft 20 can be rotated, so that the door 20 can be opened and closed as the opening / closing mechanism 30 is driven. can do. Instead of providing the fixed support shaft 21, a hinge may be used instead. That is, the second door 24 may be attached to the frame body 13 using a hinge, and the frame body 13 is erected on the base 10. In this case, the second door 24 is connected to the frame body 13. It is attached to the base 10 via the shaft so as to be rotatable.

  Next, the opening / closing mechanism 30 used in the automatic door 1 according to this embodiment will be described with reference to FIGS. As shown in FIG. 3, the opening / closing mechanism 30 is configured by an actuator using a linear motion guide device, and is movable with respect to the track member 31 extending in the longitudinal direction of the base 10 and the track member 31. And a motor 34 that rotatably holds the screw shaft 33, and includes a guide member constituted by the track member 31 and the moving member 32. And a drive unit composed of a motor 34 and a screw shaft 33.

  First, the guide part of the opening / closing mechanism 30 will be described. As shown in FIG. 2, the track member 31 has a substantially U-shaped cross section and includes a pair of inner wall surfaces 31a and 31a facing each other. The inner wall surfaces 31a, 31a are formed with a groove over the entire length, and a rolling element rolling portion 35b is formed at the upper and lower corners of each groove. That is, a total of four rolling element rolling portions 35b are provided above and below the inner wall surfaces 31a and 31a of the raceway member 31. The rolling element rolling portion 35b is formed in a so-called circular arc shape whose cross section has a curvature slightly larger than the radius of the rolling element 37b described later.

  Further, the moving member 32 is assembled between the inner wall surfaces 31a, 31a of the track member 31 via a plurality of rolling elements 37b. On both side surfaces of the moving member 32, two upper and lower load rolling element rolling portions 36b facing the rolling element rolling portions 35b of the track member 31 are formed. That is, a total of four load rolling element rolling portions 36 b are provided, two on each of the upper and lower sides of the moving member 32. The load rolling element rolling portion 36b is also formed in a circular arc shape in cross section, similar to the rolling element rolling portion 35b described above. Furthermore, the rolling element rolling part which comprises the rolling element circulation path which circulates the rolling element 37b by the rolling element rolling part 35b and the load rolling element rolling part 36b is formed.

  Furthermore, in the moving member 32, two through holes extending in parallel at a predetermined interval from the upper and lower two load rolling element rolling portions 36b are formed, and these through holes serve as rolling element return passages. It is configured as 38b. As shown in FIG. 4, a semicircular inner circumferential guide member is attached to the longitudinal end of the moving member 32, and the loaded rolling element rolling paths 35b, 36b are attached to the semicircular member. A direction change path 39 is formed so as to communicate with the rolling element return path 38b.

  Thus, the rolling element 37b interposed between the track member 31 and the moving member 32 is a rolling element circulation path composed of the load rolling element rolling paths 35b and 36b, the direction changing path 39, and the rolling element return path 38b. It is rolling with infinite circulation.

  Next, the drive part of the opening / closing mechanism 30 will be described. As shown in FIG. 4, a through hole 32a is formed in a substantially central portion of the moving member 32, and the screw shaft 33 passes through the through hole 32a via a plurality of rolling elements 37a. A spiral rolling element rolling surface 35 a is formed on the outer peripheral surface of the screw shaft 33. The cross-sectional shape of the rolling element rolling surface 35a is formed in a so-called Gothic arch shape composed of two arcs having a slightly larger radius of curvature than the radius of the rolling element 37a interposed between the screw shaft 33 and the moving member 32. ing. On the other hand, a loaded rolling element rolling surface 36a corresponding to the rolling element rolling surface 35a is also formed on the inner peripheral surface of the through hole 32a of the moving member 32, and this cross-sectional shape is also the same as that of the rolling element rolling surface 35a described above. Similarly, it is formed in a Gothic arch shape. The rolling element rolling surface 35a and the loaded rolling element rolling surface 36a constitute a load rolling path on which the rolling element 37a rolls.

  The rolling element rolling surface 35a of the screw shaft 33 and the rolling element 37a are in contact at two points, and the load rolling element rolling surface 36a of the moving member 32 and the rolling element 37a are also in contact at two points. That is, the rolling elements 37a are in contact with the moving member 32 and the screw shaft 33 at a total of four points.

  A screw shaft rolling element return passage 38a for circulating the rolling elements 37a rolling on the load rolling paths 35a, 36a is attached to the moving member 32. By means of this threaded shaft rolling element return passage 38a, one end and the other end of the load rolling paths 35a, 36a are communicated to perform infinite circulation of the rolling element 37a.

  A motor 34 is attached to one end of the screw shaft 33, and the screw shaft 33 is rotatably held by the motor 34. The motor 34 is connected to a control device (not shown), and the rotational motion is controlled by the control device. Further, the motor 34 is rotated by operating the switch 14.

  Further, as shown in FIG. 2, the movable support shaft 22 of the door portion 20 is attached to the moving member 32. Thus, since the moving member 32 is assembled so as to be movable along the longitudinal direction of the track member 31 in accordance with the rotation of the screw shaft 33, the passerby only operates the switch 14 to move the moving member 32. The door part 20 can be opened and closed with the movement. Further, the switch 14 is not limited to such a form. For example, a sensor is attached around the installation location of the automatic door 1 according to the present embodiment, the sensor senses that a passerby is approaching, and the opening / closing mechanism 30 is driven. It can also be formed.

  Furthermore, as shown in FIG. 1, the automatic door 1 according to the present embodiment includes a screw-type width adjusting mechanism 51 and a link-type width adjusting mechanism 52 that are configured to be extendable in the longitudinal direction of the base 10. The screw type width adjusting mechanism 51 is screwed to the side surface of the frame 13 on one end side in the longitudinal direction of the automatic door 1 according to the present embodiment, and the screw type width adjusting mechanism 51 tightens the base 10. The length in the longitudinal direction is adjusted.

  In addition, the link type width adjusting mechanism 52 is capable of rotating a plurality of link members each having a shaft attachment portion in which equal-length links 54a and 54b are axially attached to each other, and end portions of the links 54a and 54b being rotatable with respect to each other. It is attached and connected in a plurality of rows in the vertical direction, and is composed of vertical links 54c that connect the axially adjacent portions that are adjacent in the vertical direction. Further, both ends of the linked link member are attached to the fixed frames 54d and 54d.

  Further, an expansion / contraction stretchable member 53 that is extendable in the longitudinal direction is attached between the fixed frames 54d and 54d. The expansion / contraction extension member 53 has two cylindrical members assembled coaxially, and the cylindrical members are biased in the longitudinal direction by a spring.

  Thus, since the automatic door 1 according to the present embodiment includes the screw-type width adjusting mechanism 51 and the link-type width adjusting mechanism 52, the automatic door according to the frontage where the automatic door 1 according to the present embodiment is installed. The width of 1 can be adjusted as appropriate. In addition, as shown in FIG. 1, a screw-type width adjusting mechanism 51 can be further attached to one end of the fixed frame 54d. Therefore, it is possible to provide the automatic door 1 that can be easily installed and removed and can be easily installed and can be easily opened and closed. Furthermore, since the actuator using the linear guide device designed to be thin by the opening / closing mechanism 30 can be applied, the dimension of the base 10 in the height direction can be reduced, and the base 10 is obstructed from passing. Can be prevented.

  In the automatic door 1 according to the first embodiment described above, the case where an actuator using a linear motion guide device is used as the opening / closing mechanism 30 has been described. However, as shown in FIG. Alternatively, a linear actuator 40 having a stator 41 and a movable element 42 arranged so as to be movable with respect to the stator 41 via a predetermined gap may be used. In this case, by attaching the stator 41 to the base 10 and attaching the movable support shaft 22 to the movable element 42, the same action as the actuator using the above-described linear motion guide device can be achieved.

  The stator 41 is provided with an armature coil and a drive control circuit for supplying a drive current to the armature coil, and a field magnet is attached to the mover 42. By supplying a drive current to the armature coil, a magnetic thrust generated between the stator 41 and the mover 42 is generated, and the mover 42 can move relative to the stator 41. It is configured as follows.

  As shown in FIG. 5, when the linear actuator 40 is used for the opening / closing mechanism 30, the linear actuator 40 can be easily formed in a thin shape, so that the height dimension of the base 10 is made smaller. It is possible to prevent the base 10 from obstructing passage more reliably.

[Second Embodiment]
The automatic door 1 ′ according to the second embodiment is to explain an example of a door portion and a width adjusting mechanism having different forms from the first embodiment. Note that members that are the same as or similar to those in the first embodiment described above are given the same reference numerals, and descriptions thereof are omitted.

  FIG. 6 is a perspective view showing the structure of an automatic door according to the second embodiment of the present invention, FIG. 7 is a cross-sectional view of the base of the automatic door of the second embodiment of the present invention, and FIG. FIG. 4 is a view for explaining the operation of an automatic door according to a second embodiment of the present invention, wherein (a) is a view showing a state in which the width adjustment mechanism is contracted, and (b) is an extension of the width adjustment mechanism. FIG. 9 is a perspective view showing a modified example of the automatic door width adjusting mechanism of the second embodiment of the present invention.

  As shown in FIG. 6, the automatic door 1 ′ according to the present embodiment is configured as a link type door 27 whose door part can be expanded and contracted in the longitudinal direction. The link type door 27 has a plurality of link members each having a shaft mounting portion 25 in which two arms 23a and 24a having the same length are mounted in an X shape, and the ends of the arms 23a and 24a can be rotated with respect to each other. It is formed by connecting. In addition, the link members are arranged in a plurality of rows (two rows in the present embodiment) along the vertical direction, and are provided with vertical bars 26 that connect the axially attached portions 25 adjacent to each other in the vertical direction.

  The movable column 22a and the fixed column 21a are attached to both ends of the link member, the movable column 22a is attached to the moving member 32 of the opening / closing mechanism 30 attached to the base 10, and the fixed column 21a is attached to the base 10. Is attached to the distal end side of the slide rail type width adjusting mechanism 55 attached to one end in the longitudinal direction.

  If the door portion is configured by the link type door 27 as described above, the link type door 27 can be controlled to be extendable and retractable with the movement of the moving member 32, and the link type door 27 can be easily opened and closed. it can.

  Further, the automatic door 1 ′ according to the present embodiment includes a slide rail type width adjusting mechanism 55 as an expansion / contraction portion that can expand and contract along the longitudinal direction of the base 10. As shown in FIG. 7, the slide rail type width adjusting mechanism 55 is assembled so as to be slidable in the longitudinal direction of the base 55b via a plurality of balls 55c and a base 55b attached to both side surfaces of the track member 31. And a slider 55a. Further, as described above, the fixed column 21 a is attached to one end of the slide rail type width adjusting mechanism 55. Note that the automatic door 1 ′ according to the present embodiment is configured such that the opening / closing mechanism 30 is accommodated in the base 10 on which the slope is formed.

  As shown in FIG. 8, the automatic door 1 ′ according to the present embodiment having such a slide rail type width adjusting mechanism 55 has a structure in which the slide rail type width adjusting mechanism 55 shown in FIG. The length of the slide rail width adjusting mechanism 55 can be adjusted steplessly until the slide rail width adjusting mechanism 55 shown in FIG. 8B is extended. Further, the slide rail type width adjusting mechanism 55 is provided with a lock mechanism (not shown) so that the slide rail type width adjusting mechanism 55 can be fixed so as not to slide at an arbitrary position. Since the fixed column 21a is attached to the slide rail type width adjusting mechanism 55, a part of the link type door 27 constitutes a part of the width adjusting mechanism, and the automatic door 1 'according to the present embodiment is installed. The length of the base 10 can be adjusted according to the frontage of the place to be placed, and the automatic door 1 ′ according to the present embodiment can be easily installed at various places.

  Further, since the automatic door 1 ′ according to the present embodiment includes the link type door 27, the automatic door according to the present embodiment even when the position of the fixed column 21 a is changed by the slide rail type width adjusting mechanism 55. The link type door 27 can be expanded and contracted depending on the frontage where 1 'is installed, and the frontage can be opened and closed reliably.

  Further, as shown in FIG. 6, in the automatic door 1 ′ according to the present embodiment, a screw type width adjusting mechanism 51 is attached to the frame body 13 and the fixed column 21 a that are erected on the upper surface of the base 10. As described above, since the automatic door 1 ′ according to the present embodiment includes the screw-type width adjusting mechanism 51, the position of the fixed column 21 a is determined according to the frontage where the slide rail-type width adjusting mechanism 55 is installed. After that, fine adjustment can be performed by the screw-type width adjusting mechanism 51, and the automatic door 1 'according to the present embodiment can be more reliably installed.

  Further, as shown in FIG. 9, the automatic door 1 ′ according to the present embodiment can further include a telescopic tension member 53 in the slide rail type width adjusting mechanism 55. The telescopic stretching member 53 is a member similar to the telescopic stretching member 53 of the link type width adjusting mechanism 52 described in the automatic door 1 according to the first embodiment described above, and two cylindrical members are assembled coaxially. The cylindrical members are urged in the longitudinal direction by a spring.

  According to such a modification, the position of the fixed column 21a can be reliably fixed, so that the automatic door 1 ′ according to the present embodiment can be more reliably installed.

  Moreover, although the automatic door 1 ′ according to the above-described embodiment has been described with respect to the case where an actuator using a linear motion guide device is applied to the opening / closing mechanism 30, the opening / closing mechanism 30 includes a linear actuator 40 as shown in FIG. You may comprise.

  In the automatic doors 1 and 1 ′ according to the first and second embodiments described above, a case where an actuator using a linear motion guide device in which four rolling element circulation paths are formed in the guide portion is described. However, the number of rolling element circulation paths is not limited to this, and a plurality of rolling elements such as six or eight may be formed.

  Furthermore, in the automatic doors 1 and 1 ′ according to the first and second embodiments described above, the case where the screw type width adjusting mechanism 51 is provided at the end in the longitudinal direction has been described. If the width can be adjusted sufficiently with the slide rail type width adjusting mechanism 55, the screw type width adjusting mechanism 51 may be omitted.

  Further, in the automatic doors 1 and 1 'according to the first and second embodiments described above, the case where a folding door type and a link telescopic type door are applied to the door portion has been described, but the door portion may be a sliding door type or an accordion curtain. Various types of doors such as a formula may be adopted.

  Furthermore, in the automatic door 1 according to the first embodiment, the case where the switch 14 is attached to the frame 13 has been described. However, the switch 14 is connected to the opening / closing mechanism 30 by wire or wirelessly, and the automatic door is installed. You may attach to the wall surface near the place. In this case, the position where the switch is attached may take into consideration the ease of opening and closing the automatic door, and when the automatic door is used as a baby gate, it can be installed in a place out of the reach of infants. It is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

  The automatic door provided with the position holding mechanism of the present invention can be easily installed and removed and can be easily opened and closed. For example, it can be used as a baby gate for restricting the passage of infants, or it can be used as a simple automatic door for opening and closing a space partitioned from the room.

  1, 1 'automatic door, 10 base, 20 door part, 21 fixed support shaft, 21a fixed column, 22 movable support shaft, 22a movable column, 30 opening / closing mechanism, 31 track member, 31a inner wall surface, 32 moving member, 33 screw Shaft, 34 motor, 35a rolling element rolling surface, 35b rolling element rolling part, 36a loaded rolling element rolling surface, 36b loaded rolling element rolling part, 37a, 37b rolling element, 38a rolling element return path for screw shaft, 38b Rolling element return path, 39 direction change path, 40 linear actuator, 41 stator, 42 mover, 51 screw type width adjusting mechanism, 52 link type width adjusting mechanism, 55 slide rail type width adjusting mechanism (expandable part).

Claims (5)

A base extending in the longitudinal direction;
On the base, provided with a door portion that can be opened and closed along the longitudinal direction of the base,
The automatic door according to claim 1, wherein the base is provided with an opening / closing mechanism for opening / closing the door. The automatic door according to claim 1,
The opening / closing mechanism includes a track member extending in a longitudinal direction of the base, a moving member provided to be movable along the track member, and a drive unit for moving the moving member along the track member. Prepared,
The said moving member is connected with the said door part, The said door part opens and closes with the movement of the said moving member, The automatic door characterized by the above-mentioned. In the automatic door according to claim 1 or 2,
An automatic door, comprising: a width adjusting mechanism which is formed to be extendable and contractable along a longitudinal direction of the base, and which can adjust a length of the automatic door in a longitudinal direction. In the automatic door according to claim 3,
The base includes a stretchable part that can be stretched along the longitudinal direction,
The door portion has a fixed column attached to the distal end of the telescopic portion, and a movable column attached to the moving member,
A part of said door part comprises a part of said width adjustment mechanism, The automatic door characterized by the above-mentioned. The automatic door according to claim 2,
The track member extends in the longitudinal direction of the base and is formed in a substantially U-shaped cross section having inner wall surfaces facing each other.
The moving member is formed to be sandwiched between the inner wall surfaces,
The said drive part consists of the screw shaft which penetrates the said moving member to the longitudinal direction of the said base, and the motor which rotates the said screw shaft, The automatic door characterized by the above-mentioned.

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