JPH0732819Y2 - Door opener - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to an automatic door that opens and closes by a swing in a narrow space such as a Shinkansen platform. More specifically, there is sufficient space in the swing direction. The present invention relates to a door opening / closing device capable of turning a door in combination with opening / closing by sliding.

[Prior Art] Conventionally, an automatic door that opens and closes by swinging is one that opens and closes by swinging an entire door (33) around a turning axis (34) as shown in FIG. It was

[Problems to be solved by the invention] In order to open and close the entire door (33) by swinging as in the conventional case, the width of the door (33) in the turning direction around the turning axis (34) of the door (33). A space (S) equal to or larger than (W) is required, and the width (W) of the door (33), that is, the width of the frontage, is limited to the space (S), and a sufficient space may not be secured. . For example, on the Shinkansen platform, a fence is stretched over the track side of the platform to ensure safety when passing trains, but the space (S) between this fence and the track side of the platform is not so wide, When the swing opening / closing automatic door is used for the entrance / exit, there is a problem that it is impossible to secure a sufficient frontage necessary for efficient entrance / exit. The same applies to the gates that are installed facing the road.

An object of the present invention is to provide a door opening / closing device that can open and close a swing while ensuring a sufficient frontage even in a narrow space.

[Means for Solving the Problems] The present invention provides a swivel door, an advancing / retreating door provided in the swivel door so that the door width can be changed, and a swivel for opening and closing the swivel door by a swing. Means, an advancing / retreating means for advancing / retreating the advancing / retreating door in conjunction with the turning of the swivel door, and releasing the retracting of the advancing / retreating door when a predetermined turning angle is exceeded, and a drive source for driving the swivel means and the advancing / retreating means at the same time. An opening / closing device for a door, comprising:

[Operation] An advancing / retreating door is incorporated in the revolving door, the revolving door is driven by the revolving means to revolve, and the reciprocating door is driven by the reciprocating means interlocking with the revolving means to expand / contract in the revolving door. To do. Even if the turning door turns by a turning means or more by a certain angle, the advancing / retreating means stops the advancing / retreating movement of the advancing / retreating door when the turning door becomes equal to or more than a preset turning angle.
That is, the advancing / retreating door is retracted into the revolving door at the angle at which the opening / closing space is the smallest when the door is opened to minimize the width of the entire door. When closing the door, the forward / backward door gradually advances from the turning door.

[Embodiment] A first embodiment of the present invention will be described with reference to FIGS.

(1) is a swing door that opens and closes by a swing, and this swing door (1) is provided with a swing means for opening and closing by a swing. More specifically, an advancing / retreating door (2) that slides in and out of the swivel door (1) is provided at the tip of the swivel door (1). The base of the revolving door (1) is integrally fixed to a column cover (3) so as to rotate together with the column cover (3), and the cover (3) supports the supports (4) (4). And a bearing (5) (5), and is pivotally supported by a fixed column (6). The support body (4) is provided with a gear (7) that rotates integrally as a turning means, and a gear (10) fixed to an output shaft (9) of a drive motor (8) as a drive source. ) Is engaged and driven.

The advancing / retreating door (2) is provided with an advancing / retreating means for advancing / retreating in conjunction with the turning of the turning door (1) and releasing the retracting of the advancing / retreating door (2) when a predetermined turning angle is exceeded. More specifically, the advancing / retreating door (2) is supported by two upper and lower guide rollers (11), (11), (12), and (12), and a guide provided near the tip of the revolving door (1). The metal fitting (1) is attached to the toothed belt (15) that is hung between the pulley (13) and the toothed pulley (14) that is axially supported by the fixed column (6).
6) is connected via. The toothed pulley (14) is fixed with a gear (17) and a disc (18) having a circular notch (21) partially formed as shown in FIG. Is driven by meshing with a discontinuous gear (19) fixed to the output shaft (9) of the drive motor (8). Further, a meniscus (20) is fixed to the output shaft (9) of the drive motor (8) at the position of the disc (18). The interrupted gear (19) is provided with a toothed pulley (1) when the revolving door (1) turns 90 degrees.
90) As shown in Fig. 2 (b), the drive of 4) is completed.
The meniscus (20) is set so as to be interrupted at a degree, and the notch (2) of the disc (18) is cut after the interrupted gear (19) is interrupted.
Set to engage 1). Further retreat door (2)
The advancing / retreating distance is set by the ratio of the gear (17) to the interrupting gear (19) and the size of the toothed pulley (14). For example, when the advancing / retreating distance is 60 cm, the interrupting gear (which drives the advancing / retreating door (2) ( 19) and gear (17) 6: 1, toothed pulley (1
The diameter of 4) is set to about 15 cm.

The operation of the above first embodiment will be described. First, as shown in the position (a) of FIG. 3, the drive motor (8) is operated with the advancing / retreating door (2) exposed, and the output shaft (9) is rotated by 90 degrees. (3) with gear (1
0) (7) goes through the position (b) in FIG. 3 and turns 90 degrees to the right as shown in (c), and the toothed pulley (14) moves 90 × 6 by the interrupted gear (19) and the gear (17). = Rotate 540 degrees to the right. Since the swivel door (1) is swiveling 90 degrees right here,
This amount is offset, and the toothed pulley (14) turns into the swivel door (1).
540-90 = 450 degrees to the right, the toothed belt (15) moves 15 x 3.14 x 450/360 = 60 cm, and the retractable door (2) is retracted 60 cm into the revolving door (1). Be done. When the output shaft (9) is further rotated rightward from here, the revolving door (1) moves to the third position.
Although it further turns to the right as shown in position (d) in the figure, the toothed pulley (14) does not rotate because the interrupted gear (19) is interrupted as shown in FIG. ) Is not drawn any further. Further, the notch (21) of the disc (18) is engaged with the meniscus (20), and the toothed pulley (14) is immobile. Here, when the drive motor (8) is rotated clockwise, the revolving door (1)
Turns to the left, and when it reaches 90 degrees, the meniscus (20) turns into a disc (1
The gear (19) is disengaged from the notch (21) of (8) and the gear (1
The toothed pulley (14) is driven to rotate by engaging with 7) and the toothed belt (15) pushes the forward / backward door (2) out of the revolving door (1) to return to the original state.

Next, a second embodiment of the present invention will be described with reference to FIGS.

Reference numeral (1) is a swing door that opens and closes by a swing, and an advance / retreat door (2) that slides in and out of the swing door (1) is provided at the tip of the swing door (1). The swivel door (1) is fixed to a swivel door shaft (24) in the cover (3) via an integrated arm (22) (23), and the swivel shaft (24) is a support body (25) (26). It is pivotally supported by a cover (3) which becomes a support via A gear (27) is further fixed to the swivel shaft (24) and meshes with a gear (28) fixed to the output shaft (9) of the drive motor (8), and the gears (27) and (28) are For example
It is set to 1: 4. The door (2) is supported by two upper and lower guide rollers (11) (11) (12) (12), and the nut (2) fixed to the door (2) is fixed.
9) and screw (30) screwed to this nut (29)
Driven by. The screw (30) is pivotally supported by the arm (22), and a bevel gear (31) is fixed to the tip of the screw (30). The bevel gear (31) is fixedly installed in the cover (3). It meshes with the intermittent bevel gear (32). The discontinuing bevel gear (32) is set to discontinue at 90 degrees as shown in FIG. 5, and the advancing / retreating distance of the advancing / retreating door (2) is the ratio of the bevel gear (31) to the discontinuing bevel gear (32) and the nut. (29)
And the pitch of the screw (30). When the advancing / retreating distance is required to be 30 cm, for example, the pitch of the nut (29) and the screw (30) is 10 cm, and the bevel gears (31) (32) are set to 12: 1.

In the second embodiment described above, first, the drive motor (9) is operated with the door (2) shown in FIG. 3 (a), and the output shaft (9) is rotated counterclockwise. (28) (2
The turning axis (24) rotates right by 7) and the turning door (1) also turns right. Where the screw (30) is the bevel gear (31)
Rolls on the bevel gear (32) and rotates, and the reciprocating door (2) moves to the third position by the nut (29) and screw (30).
It is drawn into the revolving door (1) as shown in FIGS.
When the swivel door (1) reaches 90 degrees, the intermittent bevel gear (32) is interrupted as shown in FIG. 5 (b), so that the screw (30) is not driven and the retractable door (2) is not further retracted. Only the swivel door (1) turns. Here, when the drive motor (8) is rotated in the reverse direction, the swing door (1) is rotated in the opposite direction, and when it reaches 90 degrees, the intermittent bevel gear (32) meshes with the bevel gear (31) and the screw (30) is driven. And the retreat door (2) is the swing door (1)
It is pushed out of and returns to the original closed state.

In the second embodiment described above, the interrupted bevel gear (32) is fixedly mounted in the cover (3), but when the forward / backward movement distance of the forward / backward door (2) cannot be secured, the direction opposite to the revolving door (1) is applied. You may make it rotate to.

In the above-described first and second embodiments, the advancing / retreating door (2) is configured so that the retraction is completed when the revolving door (1) turns 90 degrees, but the invention is not limited to this, and the gears (7) (10) ( 1
7) Change the ratio of (19) (31) (32) and the position where it is interrupted so that it can be fully retracted at 60 degrees, or 180
You may be able to finish pulling in once. When the entire door is long, casters may be attached to the lower surface of the tip of the revolving door (1).

[Advantages of the Invention] (1) Since the present invention is configured as described above, it is possible to obtain a frontage up to twice the space even in a narrow space, and there is no space in the past, and a sufficient frontage cannot be secured. Therefore, the door according to the present invention can be installed in a place where the swivel door cannot be used, and the range of use of the swivel door is expanded.

(2) Even if the revolving door revolves by a certain angle or more by the revolving means, the reciprocating means cancels the reciprocating movement of the reciprocating door when the revolving door exceeds a preset revolving angle and stops, and only the reciprocating door revolves. To do. Therefore, when opening the door, retract the door into the swivel door at the angle where the opening and closing space is the narrowest to minimize the width of the entire door, and in this state, swivel the door to the appropriate position and stop it. You can

[Brief description of drawings]

1 to 5 show an embodiment of a door opening / closing device according to the present invention. FIG. 1 is a cross-sectional view of the first embodiment, and FIGS. 2 (a) and 2 (b) are broken lines of FIG. FIG. 3 is a plan view showing the relationship between the gear and the meniscus, FIG. 3 is a plan view showing the movement of the revolving door and the advancing / retreating door, FIG. 4 is a cross-sectional view of the second embodiment, and FIGS.
Is a plan view showing the discontinuous bevel gear and the bevel gear of FIG. 4, and FIG. 6 is a plan view showing a conventional example. (1) ... Swivel door, (2) ... Advancing / retreating door, (3) ... Cover, (4) (5) ... Support, (6) ... Fixed column,
(8) …… Drive motor, (11) (12) …… Guide roller, (13) …… Guide pulley, (14) …… Toothed pulley,
(15) …… Toothed belt, (18) …… Disc, (19) …… Interrupted gear, (20) …… Menarch, (22) (23) …… Arm, (24) …… Swivel axis , (29) …… Nut, (30) ……
Screw, (32) …… Interrupted bevel gear.

Claims (1)

[Scope of utility model registration request] 1. A revolving door, an advancing / retreating door provided in the revolving door so as to be able to move in and out to change a door width, a revolving means for opening and closing the revolving door by a swing, and the reciprocating door. It is characterized by further comprising: an advancing / retreating means for advancing / retreating in association with turning of the swivel door and releasing the retracting of the advancing / retreating door when a predetermined swivel angle is exceeded, and a drive source for driving the swivel means and the advancing / retreating means at the same time. Door opening and closing device.