JP5155010B2 - Opening / closing door device - Google Patents

Description

  The present invention relates to an opening / closing door device such as a folding door device and a balance door device that are opened and closed by turning and moving the door body in the width direction of the opening, and is particularly suitable as a double-folding type folding door device. It is about.

Conventionally, in this type of invention, as described in, for example, Patent Document 1, a door butt side door body (12) that is rotatably supported via a base shaft portion with respect to a stationary part, and the door butt A door-end side door body (11) that is rotatably connected to the door-end side portion of the side door body, and supports the door-end side door body from the upper side so as to be rotatable, and in the opening width direction. There is a folding door device provided with a movement support part (41) provided to move.
According to this prior art, when the door body (11, 12) is substantially fully closed, the movement support portion (41) is moved from the closing direction side in the opening width direction by the magnetic attracting body (43) or the like. By sucking, the door body is prevented from going too far in the reverse direction without stopping at the fully closed position.

However, since the conventional technique has a structure that suppresses the linear movement of the movement support portion, there is a case where the rotation of the door body cannot be effectively stopped.
If it demonstrates in detail, in the said prior art, the ratio of the rotation amount of the door side door body with respect to the linear movement amount of a movement support part will become large as both door bodies approach a fully closed position. That is, the door-end side door body turns relatively large only by moving the moving support portion linearly slightly.
Therefore, for example, when the moving support part is not fully attracted by the magnetic attracting body (43) or the like and the moving support part is slightly returned in the reverse direction (door bottom direction), the return to the slightly reverse direction is performed. Accordingly, the door-end side door body passes through the fully closed position and rotates to the opposite side.
JP 2007-277845 A

  This invention is made | formed in view of the said conventional situation, The process made into the subject is providing the opening / closing door apparatus which can stop the closing operation of a door body effectively in a predetermined opening / closing position. .

One means for solving the above problems is a door-end side door that is rotatably supported, and a door-end side door that is rotatably connected to a door-end side portion of the door-end side door. And a movement support mechanism that supports the door-end side door body so as to be rotatable and moves in the width direction of the opening, and while rotating the door-end side door body in one direction, the door In the open / close door device that pivots the front door body in the reverse direction to open and close the opening, the concave portion and the convex portion fit between the moving support portion and the door front door body. Concave and convex engaging means for stopping the rotation of the door- end side door body at a predetermined opening / closing position is provided , and the concave and convex engaging means includes an annular engaging part provided so as not to rotate with respect to the movement support part, and the door An annular engaged portion provided in a non-rotatable manner with respect to the body is contacted in the vertical direction, and the contact surface of the annular engaging portion and the annular covered portion The contact surface of the engaging portion is characterized in that is formed so as to disengage the recesses and projections with the other pivot for that one.

One of the features of the present embodiment is provided with a movement support portion provided so as to move in the width direction of the opening, and a door body supported so as to be rotated by the movement support portion. In the opening / closing door device configured to open and close the opening by movement in the width direction of the opening and rotation of the door, the door is fitted between the movement support portion and the door body by fitting of the concave portion and the convex portion. Concavity and convexity engagement means for stopping the rotation of the body at a predetermined opening / closing position is provided .
As a further feature , the concave-convex engagement means includes an annular engagement portion provided so as not to rotate with respect to the movement support portion, and an annular engaged portion provided so as not to rotate with respect to the door body. The abutment surface of the annular engagement portion and the abutment surface of the annular engagement portion engage and disengage the concave portion and the convex portion with the rotation of the other relative to the other. Ru formed tear so as to.

As a further feature , the concave-convex engaging means is fixed to the movement support portion and is provided so as to rotate with respect to the door body, and is not rotatable with respect to the door body. and an annular engaged portion and provided so as to slide in the axial direction a, is brought into contact in the vertical direction, it urges the direction of the abutment by the biasing member an annular engaged portion , the contact surface of the contact surface of the annular engagement portion and the circular engaged part, Ru formed tear so as to disengage the recesses and projections with the other pivot for that one.

As a further feature , the concave-convex engaging means includes an engaged portion having a concave portion on an outer peripheral surface, and an engaging portion that rotates around the engaged portion to engage and disengage the convex portion with respect to the concave portion. with the door, the one of these engaged portions and the engaging portion, with integrally provided to said door body, that are provided integrally with respect to the moving support portions other person.

As a further feature , the engaging portion is configured in a doubly supported beam shape in which one end side and the other end side in a tangential direction with respect to the outer peripheral surface of the engaged portion are supported, and the one end side and the has the convex portion between the other end, Ru is disengaged the convex portion to the concave portion of the engaged portion flexes elastically.

As a further feature, the bottom surface of the recess, when the each other fit with the convex portions facing, that have escaped recess to secure a gap is formed between the tip of the convex portion.

Since the present embodiment is configured as described above, the following effects can be obtained.
When the door body reaches a predetermined opening / closing position, the concave / convex engagement means acts directly on the rotation shaft portion to stop the rotation of the door body.
Therefore, the closing operation of the door body that rotates while moving in the width direction of the opening can be effectively stopped at a predetermined opening / closing position, for example, the door body flutters like a pendulum at the fully closed position. Can be prevented .

Next, a preferred specific example of the above embodiment will be described with reference to the drawings.
The door device shown in FIG. 1 can be rotated with respect to a door-side door body 10 that is rotatably supported via a base shaft portion with respect to a stationary part, and a door-side portion of the door-side door body 10. A door-end-side door body 20, a frame 30 surrounding the door-end-side door body 10 and the door-end-side door body 20 from the left-right direction side and the upper side, and the door-end side door body 20 above the door-end side door body 20. And a moving support mechanism 40 that supports the door 10 so that it can pivot from the side and move in the width direction of the opening (left and right in the illustrated example), and pivots the door-side door 10 in one direction. The folding door device is a double-folding type that opens and closes by rotating the door-end side door body 20 in the reverse direction.

  The door bottom side door body 10 is a substantially rectangular plate-like member that is rotatably supported via the base shaft portion 50 with respect to the floor surface f and the upper frame portion 33 that are immobile parts, and the base shaft portion 50 is the center. And turn in both directions.

  Further, the base shaft portion 50 supports the upper pivot portion 51 that rotatably supports the upper end side of the door butt side door body 10 on the outermost door butt side, and supports the lower end side of the door butt side and the door butt side door body. 10 and a braking means 52 that suppresses rotation in the closing direction.

  The basic structure of the braking means 52 is substantially the same as the cam type damper mechanism described in Japanese Utility Model Publication No. 6-11353. As shown in FIG. 4, the braking means 52 applies the cam type damper mechanism to rotate the closing arm portion 52b integral with the door-end side door body 10 in the closing direction. Suppression is performed within a predetermined rotation range.

  More specifically, the braking means 52 includes a fixed shaft 52a embedded in the floor surface f, a rotating arm portion 52b rotatable with respect to the fixed shaft 52a, and a cylinder integral with the rotating arm portion 52b. The first cam 52d, the second cam 52e, the third cam 52f, and the like are provided in a substantially cylindrical cylinder 52g in the cylindrical portion 52c.

The first cam 52d and the second cam 52e are disposed above and below the third cam 52f, and are fixed to the fixed shaft 52a via the cylinder 52g and the lower shaft portion 52h. That is, the second cam 52e and the third cam 52f are in a state in which the second cam 52e and the third cam 52f cannot rotate with respect to the floor surface f that is a stationary part.
The second cam 52e and the third cam 52f have inclined surfaces 52d1 and 52e1 at portions facing the third cam 52f, respectively.

The third cam 52f is fixed to the cylinder portion 52c via an upper shaft portion 52i inserted into the first cam 52d and an upper coupling body 52j. That is, the third cam 52f rotates integrally with the door butt side door body 10 together with the cylindrical portion 52c and the rotating arm portion 52b.
The third cam 52f has inclined surfaces 52f1 and 52f2 at the upper and lower ends.

As shown in FIG. 4, in a state where the lower inclined surface 52f2 of the third cam 52f is engaged with the inclined surface 52e1 of the second cam 52e, the door-end side door body 10 and the door-end side door body 20 are substantially all. Located in the closed state.
When the third cam 52f rotates and the inclined surface 52f1 of the upper end portion of the third cam 52f is engaged with the inclined surface 52d1 of the first cam 52d, the door bottom side door body 10 and the door end side door The body 20 is located in a substantially fully open state.

  The third cam 52f receives resistance of an internal fluid (not shown) when moving downward due to the rotation accompanying the closing operation of the door-end side door body 10 and the door-end side door body 20. Further, the third cam 52f is released from the resistance of the internal fluid when it rotates in accordance with the opening operation of the door-end side door body 10 and the door-end side door body 20 ( For details, refer to Reality 6-13353).

Further, according to a preferred example of the present embodiment, the braking means 52 suppresses the rotation of the door bottom side door body 10 and the door end side door body 20 in the closing direction within a predetermined rotation range on the opening direction side. Without being configured, it is configured to suppress only in a predetermined rotation range on the closing direction side.
In this configuration, for example, the flat surface 52f11 is provided on the inclined surface 52f1 of the third cam 52f, so that the flat surface 52f11 and the lower end 52d11 of the inclined surface 52d1 of the first cam 52d are in a sliding range. The third cam 52f may be prevented from moving in the axial direction, and in other ranges, the third cam 52f may be moved in the axial direction while receiving resistance by the internal fluid.
According to this structure, the closing operation | movement of the door end side door body 10 and the door tip side door body 20 can be suppressed from the middle of the closing operation | movement.

Further, the door-end side door body 20 is formed in a substantially rectangular plate shape having a larger area than the door-end side door body 10, and a door-side portion of the door-end side door body 10 is provided with a mechanism such as a hinge. Thus, they are connected so as to rotate in both directions. In FIG. 1, reference numeral 21 denotes a handle, and reference numeral 22 denotes a window portion.
The door-end side door body 20 is suspended by a movement support mechanism 40 at a substantially central portion in the width direction at the upper end portion thereof.

Moreover, the frame 30 opposes the door-end side vertical frame 31 which opposes the door-end part 20a of the door-end side door body 20 when fully closed, and the door-end part 10a of the door-end side door body 10 when fully closed. The door-toe-side vertical frame 32 and the upper frame portion 33 that connects the vertical frames 31 and 32 at the upper end thereof are formed in a substantially U-shaped frame shape. A support mechanism 40 and the like are configured.
In addition, according to the example of illustration, although the lower side of the door butt side door body 10 and the door tip side door body 20 is made into the floor surface, the ground, etc., it is good also as a lower frame part covering both the vertical frames 31 and 32.

Further, the movement support mechanism 40 is provided so as to move in the opening width direction, and the movement support section 41 that suspends the door-end side door body 20 so as to be rotatable, and the movement support section 41 in the opening width direction. The guide rail 42 is configured to be guided to the right and the driving device 43 is configured to electrically move the movement support portion 41 along the guide rail 42.
In addition, an uneven engagement means 60 is provided between the movement support portion 41 and the door-end side door body 20 to stop the rotation of the door-end side door body 20 at a substantially fully closed position by fitting the recess and the protrusion. It is done.

  As shown in FIG. 5, the movement support portion 41 suspends a shaft portion 41 a that rotatably suspends the door-end side door body 20 via a bearing member such as a bearing, and an upper end side portion of the shaft portion 41 a. The support bracket 41b to be held and the suspension wheels 41c and 41c rotatably supported by the support bracket 41b. The shaft portion 41a is provided so as not to move in the width direction (left and right direction according to the illustrated example) with respect to the door-end side door body 20.

  The guide rail 42 is fixed in the upper frame portion 33 so as to receive the movement support portion 41 in the opening width direction.

The driving device 43 is a linear motor driving device. As shown in FIG. 3, the driving device 43 includes a stator 43a fixed in the upper frame portion 33, a mover 43b fixed to the movement support portion 41, and a stator 43a. The controller unit 43c supplies electric power to the electric power and controls the electric power.
According to the driving device 43, for example, when the door-end side door body 10 and the door-end side door body 20 in the fully open position manually start the closing operation, the closing operation is detected by a sensor or the like, and the stator 43a Then, the closing operation is automatically continued. Also, when the door-end side door body 10 and the door-end side door body 20 in the fully closed position start the opening operation manually, the opening operation is detected by a sensor or the like, and power is supplied to the stator 43a. The opening operation is automatically continued.

Moreover, the uneven | corrugated engagement means 60 is provided between the lower end side of the said shaft part 41a, and the upper end part of the door-end side door body 20 (refer FIG. 5).
The uneven engagement means 60 includes an annular engagement portion 61 that is fixed with respect to the shaft portion 41a of the movement support portion 41 and that rotates with respect to the door-end side door body 20, and the door-end side door. An annular engaged portion 62 provided so as not to rotate with respect to the body 20 and to slide in the axial direction is brought into contact with the vertical direction, and the annular engaging portion 61 is The contact surface of the annular engaging portion 61 and the contacted surface of the annular engaged portion 62 are urged in the direction of contact, and the concave portion and the convex portion are formed by the rotation of the other relative to the other. It is formed to be engaged and disengaged.

More specifically, the annular engaging portion 61 integrally has a substantially cylindrical base portion 64 (see FIGS. 6A and 6A), and the base portion 64 is rotated with respect to the shaft portion 41a. It is impossible and is provided so as to be rotatable with respect to the door-end side door body 20.
And the recessed part 61a and the convex part 61b are alternately arrange | positioned in the site | part which opposes the cyclic | annular to-be-engaged part 62 in the said base part 64 so that it may become uneven | corrugated shape in a rotation direction.

  As shown in the developed view of FIG. 7, the concave portion 61a has inclined surfaces 61a1 and 61a1 arranged in a substantially V shape, and a substantially U-shape arranged on the bottom surface side between these inclined surfaces 61a1 and 61a1. And the relief recess 61a2. The escape recess 61a2 prevents the top of the annular engaged portion 62 from being worn and makes the annular engaged portion 62 easy to detach.

  The convex portion 61b is a substantially trapezoidal protrusion formed between the two concave portions 61a and 61a. Specifically, the convex portion 61b is formed from the inclined surfaces 61a1 and 61a1 and the flat surface portion 61b1 on the top side therebetween. Composed.

  And the annular engaging part 61 of the said structure is provided so that it may rotate with respect to the door end side door body 20, while being fixed substantially coaxially with respect to the axial part 41a.

Further, the annular engaged portion 62 includes a substantially rectangular base portion 65 supported so as not to be rotatable and movable in the vertical direction with respect to the door-end side door body 20 via a spacer or the like, and an annular engagement in the base portion 65. It is comprised integrally from the recessed part 62a and the convex part 62b which were provided in the site | part by the side of the joint part 61 (refer FIG.6 (b) (b ')).
The concave portions 62a and the convex portions 62b are alternately arranged so as to be uneven in the rotation direction.

As shown in the developed view of FIG. 7, the recess 62 a is composed of two inclined surfaces 62 a 1 and 62 a 1 and a flat surface-shaped bottom portion 62 a 2 disposed on the bottom side between the inclined surfaces 62 a 1 and 62 a 1.
On the other hand, the convex part 62b is formed in a substantially mountain shape by the inclined surfaces 62a1 and 62a1.

  According to a preferred example of the present embodiment, the slope of the inclined surface 61a1 on the annular engagement portion 61 side and the slope of the inclined surface 62a1 on the annular engaged portion 62 side are made different from each other. A gap is formed between the inclined surfaces 61a1 and 62a1, and this gap improves the detachability of the convex portion 62b with respect to the concave portion 61a. When the flat surface portion 61b1 of the annular engaging portion 61 and the inclined surface 62a1 of the annular engaged portion 62 are in contact (see FIG. 7C), the annular engaged portion 62 with respect to the annular engaging portion 61 is used. It becomes a substantially stationary state in which the rotation has stopped.

The annular engaged portion 62 having the above configuration is pressed against the annular engaging portion 61 by being ejected from the lower side thereof to the biasing member 63.
The annular engagement portion 61 is a coil spring according to the illustrated example, but can also be an elastic member such as a leaf spring, a rubber body, or a resin body.

Next, the function and effect of the above embodiment will be described in detail.
First, when the door-side door body 10 and the door-end side door body 20 are in the fully open position, if a passerby or the like slightly moves the door-end side of the door-end side door body 20 by hand in the closing direction, the closing operation is performed. The linear motion of the movement support part 41 accompanying this is continued by the drive device 43.
That is, the door bottom side door body 10 and the door end side door body 20 start rotating from a state substantially orthogonal to the opening. At this time, the rotation direction of the door-end side door body 10 and the rotation direction of the door-end side door body 20 are opposite to each other. And along with this rotational movement, the movement support part 41 linearly moves in the door-end direction (see FIG. 2).

During the closing operation, the rotation speed of the door butt side door body 10 is suppressed by the braking means 52 of the base shaft portion 50. Therefore, the rotational speed of the door end side door body 20 connected to the door bottom side door body 10 is also suppressed.
During the closing operation, the annular engaged portion 62 rotates together with the door-end side door body 20, and when the door-end side door body 20 is in the substantially fully closed position, the recess 61a of the annular engagement portion 61 and The convex part 62b of the annular engaged part 62 meshes (see FIGS. 7A to 7C).

That is, since the annular engaging portion 61 and the annular engaged portion 62 are engaged with each other in a state where the rotation of the door-end side door body 20 is relatively slow by the braking means 52, the door-end side door body 10 and the door-end. The side door body 20 can be effectively stopped at the fully closed position.
As a result, when the door-end side door body 10 and the door-end side door body 20 are substantially fully closed, the door-end side door body 20 swings in a pendulum shape past the fully closed position, or passes the fully closed position. It is possible to effectively prevent the door end side door body 20 from being sensed by a sensor (not shown) and being opened by the driving device 43.

Next, another example of the uneven engagement means will be described.
8 and 9 includes an engaged portion 71 having a recessed portion 71a on the outer peripheral surface, and a periphery of the engaged portion 71 to rotate the protruding portion 72a with respect to the recessed portion 71a. An engagement portion 72 to be engaged and disengaged, and one of the engaged portion 71 and the engagement portion 72 (the engagement portion 72 according to the illustrated example) is integrated with the door-end side door body 20. The other side (the engaged portion 71 in the illustrated example) is integrally fixed to the shaft portion 41 a of the movement support portion 41.

  The engaged portion 71 is an annular member fixed around the shaft portion 41a, and has a plurality of concave portions 71a on its outer peripheral surface for engaging and disengaging with a convex portion 72a of the engaging portion 72 described later.

Each recess 71a is formed in a substantially arc shape in cross section according to the illustrated example.
The recesses 71a are arranged on the outer peripheral surface of the engaged portion 71 at an angle of about 90 °, for a total of four, so that the door-end side door body 20 can be rotated in the fully open position and the fully closed position. And is locked at two positions.

  Further, the engaging portion 72 is configured as a doubly supported beam in which one end side and the other end side in the tangential direction with respect to the outer peripheral surface of the engaged portion 71 are supported, and the one end side and the other end side The protrusion 72a is elastically bent to engage and disengage the protrusion 72a with the recess 71a of the engaged portion 71.

If it demonstrates in detail, the engaging part 72 will be formed in the substantially U shape which has a bending part in both ends, and each bending part is orient | assigned to the reverse direction with respect to the to-be-engaged part 71. FIG.
And the engaging part 72 is making the protrusion end of the said bending part contact | abut on the inner wall face of the frame-shaped member 23 fixed to the upper end side of the door-end side door body 20. FIG. Therefore, a space s for bending the engaging portion 72 is secured between the bent portions on the one end side and the other end side (see FIG. 9).

  Further, a convex portion 72a is provided at a portion that is substantially from the center between the one end side and the other end side of the engaging portion 72 and that is opposite to the space s. The convex portion 72 a is formed in a substantially arc shape in cross section that engages and disengages with the concave portion 71 a of the engaged portion 71. In addition, as another example of the convex part 72a and the recessed part 71a, it is also possible to make a cross-sectional substantially trapezoid shape.

  According to the concave-convex engaging means 70 having the above-described configuration, first, when the door-end side door body 10 and the door-end side door body 20 are in the fully open position, the concave portion 71a of the engaged portion 71 and the engaging portion 72 The convex part 72a is fitted. Therefore, the fully open state of the door end side door body 10 and the door end side door body 20 is maintained by this fitting.

  Next, when a passerby or the like slightly moves the door-end side of the door-end side door body 20 in the closing direction by hand, the convex portion 72a of the engaging portion 72 comes off from the concave portion 71a of the engaged portion 71, The door end side door body 20 rotates. As the door end side door body 20 rotates, the movement support portion 41 linearly moves in the closing direction, and this linear movement is continued by the driving device 43.

When the door end side door body 10 and the door end side door body 20 are in the fully closed position, the convex portion 72a of the engaging portion 72 is fitted into the concave portion 71a of the engaged portion 71. Therefore, the fully closed state of the door bottom side door body 10 and the door end side door body 20 is maintained.
Further, when the door-end side door body 10 and the door-end side door body 20 perform the opening operation, the operation is reverse to that described above.

As another example, a total of two concave portions 71a are provided on the outer peripheral surface of the engaged portion 71 at an angle of about 180 °, and the door-end side door body 20 is in either the fully open position or the fully closed position. It is also possible to be locked only with.
Furthermore, as another example, it is also possible to set the arrangement angle and the number of the recesses 71a so that the door-end side door body 20 is locked at a position other than the fully open position and the fully closed position. In this case, as a more preferable configuration, the number of concave portions 71a and convex portions 72a that are engaged in the fully open position and the fully closed position (for example, two locations), the recessed portions that are engaged in positions other than the fully open position and the fully closed position. 71a and the number of protrusions 72a are reduced (for example, one location) to weaken the engagement holding force at positions other than the fully open position and the fully closed position. The side door 20 can be opened and closed smoothly.
Furthermore, as another example, the concave-convex relationship between the concave portion 71a of the engaged portion 71 and the convex portion 72a of the engaging portion 72 can be reversed from the illustration.
Also, in the concave / convex engaging means 70, like the escape recess 61 a 2 of the concave / convex engagement means 60, an escape recess (not shown) can be provided on the bottom surface of the recess 71 a to improve engagement / disengagement. is there.

Further, as a configuration added to the above embodiment, a rotary damper device 80 indicated by a two-dot chain line in FIG. 5 or 8 may be provided. The rotary damper device 80 includes, for example, a main body portion 81 and a brake shaft 82 that rotates with respect to the main body portion 81, and has a configuration in which resistance to rotation of the brake shaft 82 is given by the viscous resistance of fluid. The mechanism may be used.
The braking shaft 82 is connected to the shaft portion 41 a of the movement support mechanism 40. On the other hand, the main body portion 81 is integrally fixed to the door-end side door body 20.
Therefore, according to the configuration using the rotary damper device 80, the opening operation and / or closing operation of the door-end side door body 20 can be appropriately controlled at a speed, and consequently the door-end side door body 10 and the door-end. The side door body 20 can be effectively stopped at the fully open position and / or the fully closed position.

  The rotary damper device 80 is, for example, a type that suppresses the rotation of the brake shaft 82 in only one direction (so-called one-way type), and opens and closes the door bottom side door body 10 and the door end side door body 20. Of these, only one of them may be suppressed. As another example, the rotary damper device 80 is a type that suppresses the rotation of the brake shaft 82 in both directions, and suppresses both the opening operation and the closing operation of the door-end side door body 10 and the door-end side door body 20. You may make it do.

Moreover, you may make it provide the 2nd uneven | corrugated engaging means 90 and 90 'shown in FIG. 10 or FIG. 11 as a structure added to the said embodiment.
The second concave-convex engaging means 90 shown in FIG. 10 includes a concave portion 91a between the door-end portion 20a of the door-end-side door body 20 and the door-end side vertical frame 31 that faces the door-end portion 20a when fully closed. And the convex portion 92a.

More specifically, the engaged member 91 is provided on the door-end side vertical frame 31. This engaged member 91 is a metal piece having a substantially L-shaped cross section that can be elastically bent, has a concave portion 91 a on one end side thereof, and is fastened to the door-end side vertical frame 31 on the other end side. Yes. A recessed portion 91a having a substantially square cross section is formed on the other end side of the engaged member 91.
The engaged member 91 is fixed to a substantially central side in the door body thickness direction of the door-end side vertical frame 31 over substantially the entire length or part of the vertical direction.

Further, an engagement member 92 is provided on the door tip portion 20 a of the door tip side door body 20. The engaging member 92 includes a main body portion 92b fixed to the door-end side door body 20, and a convex portion 92a protruding from the main body portion 92b.
The convex portion 92a is a roller that is rotatably supported with respect to the main body portion 92b, and its outer periphery is partially fitted to the concave portion 91a.
One or a plurality of convex portions 92a are provided at arbitrary positions in the vertical direction on the approximate center side in the door body thickness direction of the door tip portion 20a.

  According to the second concavo-convex engaging means 90 shown in FIG. 10, when the door bottom side door body 10 and the door end side door body 20 are fully closed, the engaged member 91 is elastically bent, and the recess 91a and The convex part 92a fits. Therefore, the closing operation of the door bottom side door body 10 and the door end side door body 20 can be effectively stopped at the fully closed position.

Further, the second uneven engagement means 90 ′ shown in FIG. 11 is an aspect in which the uneven relation in the second uneven engagement means 90 is reversed.
If it demonstrates in detail, while this 2nd uneven | corrugated engaging means 90 'provides the said engaging member 92 in the door-end side vertical frame 31, and provides the to-be-engaged member 91' in the door-end part 20a.

The engaging member 92 in the second concave-convex engaging means 90 ′ is a door through a substantially L-shaped bracket 92c that can be elastically bent in a state where the convex portion 92a faces the door-end side door body 20 side. The front side vertical frame 31 is fixed.
The engaged member 91 ′ is a member having a concave portion 91a ′ that can be engaged with and disengaged from the convex portion 92a, and is formed from, for example, a synthetic resin material. The engaged member 91 ′ can be formed of an elastic material such as rubber so that the engagement / disengagement between the concave portion 91a ′ and the convex portion 92a can be improved.

  According to the second concavo-convex engaging means 90 ′ shown in FIG. 11, when the door-end side door body 10 and the door-end side door body 20 are fully closed, the bracket 92c that supports the engaging member 92 is elastically bent. Thus, the concave portion 91a ′ and the convex portion 92a are fitted together. Therefore, the closing operation of the door bottom side door body 10 and the door end side door body 20 can be effectively stopped at the fully closed position.

  Moreover, as a structure added to the said embodiment, as shown in FIG. 12 or FIG. 13, the door-end part 20a of the door-end side door body 20 and the door-end side vertical which opposes the said door-end part 20a at the time of full closure A flexible member 100 is provided in one part of the frame 31 so as to extend over substantially the entire length in the vertical direction, and the distal end side of the flexible member 100 in the door-end direction is brought into contact with the other part. May be.

If it demonstrates in detail, in the aspect shown in FIG. 12, the two flexible members 100 and 100 are provided in the door-end side vertical frame 31 at intervals in the door body thickness direction, and these flexible members 100 are provided. , 100 so that the door tip 20a fits.
The door-end side vertical frame 31 includes a main body frame 31a that is fixedly fixed, and a movable frame 31b that is provided so as to advance and retreat in the opening width direction (left and right direction according to the illustrated example) with respect to the main body frame 31a. Become. The structure for advancing and retracting the main body frame 31a includes, for example, fixing a screwing member 31c (for example, a screw or a bolt) to one of the main body frame 31a and the movable frame 31b and screwing the screwing member 31c to the other. What is necessary is just composition.

  In the movable frame 31b, flexible members 100 are disposed on both ends in the door thickness direction. According to the illustrated example, each flexible member 100 is a brush-like member having flexibility (sometimes referred to as mohair), and corresponds to substantially the entire vertical length of the door-end side door body 20. Thus, it is fixed to the movable frame 31b.

According to the embodiment shown in FIG. 12, when the door-end side door body 10 and the door-end side door body 20 are fully closed, the flexible members 100, 100 are elastically bent, and the flexible members 100, 100 are elastically bent. The door tip portion 20a of the door tip side door body 20 fits into the concave portion formed therebetween, and the tip of each flexible member 100 contacts the door tip portion 20a.
Therefore, the closing operation of the door bottom side door body 10 and the door end side door body 20 can be effectively stopped at the fully closed position.
In addition, since the flexible member 100 elastically contacts the door tip portion 20a in the vertical direction, a gap is formed between the door tip portion 20a and the door tip side vertical frame 31 in the fully closed state. This can be prevented.
Further, in order to improve the engagement / disengagement between the flexible members 100, 100 and the door end portion 20a, the screwing member 31c is rotated to adjust the protruding amount of the movable frame 31b and the flexible members 100, 100. It is possible.

  Although not shown, the second uneven engagement means 90 (or 90 ′) illustrated in FIG. 10 or FIG. 11 is added to the configuration shown in FIG. It is also possible to improve.

Moreover, in the aspect shown in FIG. 13, the front end side of the said flexible member 100 provided in the door tip part 20a is made to contact | abut with respect to the movable frame 31b.
The movable frame 31b is formed in a concave shape with a portion facing the door tip 20a extending in the vertical direction.
The flexible member 100 is fixed to a substantially central portion in the door body thickness direction in the door tip portion 20a over substantially the entire length in the vertical direction.

According to the aspect shown in FIG. 13, when the door-end side door body 10 and the door-end side door body 20 are fully closed, the flexible member 100 is elastically bent and contacts the concave portion of the movable frame 31b. Therefore, the closing operation of the door bottom side door body 10 and the door end side door body 20 can be effectively stopped at the fully closed position.
Moreover, since the flexible member 100 elastically contacts the door-end side vertical frame portion 31 in the vertical direction, a gap is formed between the door-end portion 20a and the door-end side vertical frame 31. You can prevent anything.
Further, in order to improve the engagement / disengagement between the flexible member 100 on the door end 20a side and the movable frame 31b, it is possible to adjust the protruding amount of the movable frame 31b by turning the screwing member 31c. .

  In addition, according to the example of illustration, although the single flexible member 100 was provided with respect to the door-end part 20a, as an example, it is possible to leave a space | interval in the door body thickness direction with respect to the door-end part 20a. A plurality of flexible members 100 may be provided.

  Further, the flexible member 100 may be any member that can be bent while abutting against the other facing portion, and can be replaced with, for example, a rubber plate-like member.

  Moreover, according to the said embodiment, although the door-end side door body 20 was supported only by the upper side as a preferable aspect, as another example, the door-end side door body 20 is the upper side and the downward direction. It is possible to set it as the aspect supported by the side, the aspect which supports the door-end side door body 20 only in the downward side.

Moreover, according to the said embodiment, although the double fold type folding door apparatus was comprised as an especially preferable aspect, you may comprise a folding door apparatus as a one-fold type as another example.
As another example, some or all of the above-described braking means 52, uneven engagement means 60 (or 70), second uneven engagement means 90 (or 90 '), flexible member 100, etc. It is also possible to configure a balance door, a door or the like.

It is a front view which shows an example of this invention. It is a figure which shows the operation | movement of a door body as seen from the upper side. (A) is a principal part enlarged view which shows the state in which the door body was substantially fully closed, (b) is a principal part enlarged view which shows the state in which the door body was substantially fully opened. It is an internal structure figure which shows an example of a braking means. It is principal part sectional drawing which shows an example of an uneven | corrugated engagement means. (A) is a top view which shows the annular engaging part in an uneven | corrugated engaging means, (a ') is a perspective view of the annular engaging part, (b) is a plane which shows the annular engaged part in the uneven | corrugated engaging means. FIG. 4B is a perspective view showing the annular engaged portion. It is an expanded view which shows the operation | movement at the time of an annular engaging part and an annular engaged part fitting, in order to (a) (b) (c). It is principal part sectional drawing which shows the other examples of an uneven | corrugated engagement means. It is the (IX)-(IX) sectional view taken on the line in FIG. It is a principal part cross-sectional view which shows an example of a 2nd uneven | corrugated engagement means. It is a principal part cross-sectional view which shows the other example of a 2nd uneven | corrugated engagement means. It is a principal part cross-sectional view which shows an example which comprised the flexible member. It is a principal part cross-sectional view which shows the other example which comprised the flexible member.

10: Door bottom side door body 20: Door edge side door body 20a: Door edge side portion 31: Door edge side vertical frame 40: Movement support mechanism 41: Movement support portion 50: Base shaft portion 52: Braking means 60: Concavity and convexity engagement means 61: annular engagement part 61a: recess 61a2: relief recess 61b: convex part 62: annular engaged part 62a: concave part 62b: convex part 63: biasing member 71: engaged part 71a: concave part 72: engaging part 72a: convex part 90, 90 ': 2nd uneven | corrugated engaging means 91a, 91a': recessed part 92a: convex part 100: flexible member

Claims (9)

A door-end side door body that is rotatably supported, a door-end side door body that is rotatably connected to a door-end side portion of the door-end side door body, and the door-end side door body is rotated. And a moving support mechanism for supporting the door end side so as to move in the opening width direction, and rotating the door end side door body in the opposite direction while rotating the door bottom side door body in one direction. In the door device that opens and closes the opening,
Provided between the movement support portion and the door- end side door body is an uneven engagement means for stopping the rotation of the door- end side door body at a predetermined opening / closing position by fitting the concave portion and the convex portion ,
The concave-convex engagement means applies an annular engagement portion provided so as not to rotate with respect to the moving support portion and an annular engaged portion provided so as not to rotate relative to the door body in the vertical direction. Contact
The contact surface of the annular engagement portion and the contact surface of the annular engagement portion are formed so as to engage and disengage the concave portion and the convex portion with the other rotation with respect to one of them. Opening and closing door device. The annular engagement portion is provided so as to be fixed to the movement support portion and rotated with respect to the door body, and the annular engaged portion is provided to slide in the axial direction with respect to the door body;
The annular engagement portion and the annular engaged portion are brought into contact with each other in the vertical direction, and the annular engaged portion is urged by the urging member in the contact direction,
The contact surface of the annular engagement portion and the contact surface of the annular engagement portion are formed so as to engage and disengage the concave portion and the convex portion with the other rotation with respect to one of them. The open / close door device according to claim 1. A base shaft portion that rotatably supports a portion of the door butt side door body that is pivotally supported is provided, and the base shaft portion is provided so as not to move in the opening width direction with respect to the stationary portion. The opening / closing door apparatus of Claim 1 or 2 . While fixing the shaft portion downward to the moving support portion, the door end side door body is rotatably suspended on the shaft portion,
The concavo-convex engaging means provides the annular engaging portion and the annular engaged portion between a lower end side of the shaft portion and an upper end side of the door-end side door body, and the annular engaged portion. The opening / closing door device according to any one of claims 1 to 3 , wherein the opening / closing door device is disposed below the annular engagement portion and is moved in the opening width direction together with the movement support portion . A drive device that automatically moves the moving support portion in the width direction of the opening and continuously opens and closes the door-end side door body and the door-end side door body; The opening / closing door device according to any one of claims 1 to 4 , wherein the opening / closing door device is disposed above the door end side door body . A guide rail for guiding the moving support portion in the opening width direction;
  The opening / closing door device according to any one of claims 1 to 5, wherein the uneven engagement means and the door-end side door body are disposed below the guide rail.   The annular engagement portion is provided with recesses and projections alternately in a rotational direction in a portion facing the annular engaged portion, and the boundary between the recesses and the projections is formed by an inclined surface,
  The annular engaged portion is alternately provided with a concave portion and a convex portion that can be engaged and disengaged with respect to the concave portion and the convex portion on the annular engaging portion side in a rotational direction in a portion facing the annular engaging portion. And forming the boundary between the concave and convex portions with an inclined surface,
  By setting the gradient of the inclined surface on the annular engagement portion side and the gradient of the inclined surface on the annular engaged portion side to different angles, the annular engagement portion and the annular engaged portion The opening / closing door device according to any one of claims 1 to 6, wherein a gap is formed between the two inclined surfaces when the two are fitted in an uneven shape.   A rotary damper device is provided that provides resistance to rotation of the brake shaft relative to the main body, and the brake shaft is connected to the movement support portion, and the main body is integrally fixed to the door-end side door body. The opening / closing door device according to any one of claims 1 to 7, wherein an opening operation and / or a closing operation of the door-end side door body are suppressed.   9. A relief recess is formed on the bottom surface of the recess so as to secure a gap between the projecting end of the projection when the opposing projection is fitted. The opening / closing door apparatus of Claim 1.

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