JP4842557B2 - Door - Google Patents

Description

  The present invention relates to an opening / closing door that opens and closes by rotating an opening / closing body such as a door, a folding door, and a gate.

Conventionally, as an invention of this type, for example, as described in Patent Document 1, the opening / closing body (door D) is opened by an external force such as a manual opening operation, and the opening / closing body (door D) is opened during the opening operation. When the external force is removed, the opening / closing body (door D) is automatically closed and fully closed.
More specifically, in this prior art, the coil spring (18) included in the shaft support mechanism (door closer CL) of the opening / closing body (door D) is accompanied by the opening operation of the opening / closing body (door D). It is configured to be tightened.
Therefore, when the external force in the opening direction is removed during the opening operation of the opening / closing body (door D), the coil spring (18) is released from the tightened state and returned to its original state. The closing operation is automatically performed by the biasing force.

However, according to the prior art, for example, when a passer opens the opening / closing body (door D) to its opening and closing position and attempts to pass through the opened opening, the opening / closing body (door D). ) Is not closed with a hand etc., the opening / closing body (door D) automatically closes and touches the person who opened the door or touches the subsequent passer-by. There is a fear.
In the above prior art, when the opening / closing body (door D) is substantially fully open (approximately 90 degrees), the fully open state can be maintained. If the person is a relatively weak person such as the above, it becomes difficult to open the opening / closing body (door D) until it is almost fully opened, and the opening / closing body (door D) contacts the passing person as described above. It is easy to invite the situation of doing.

In addition, as an application example of the above-described prior art, it is also possible to configure an open / close door in which the open / close body is biased in the opening direction. At times, the door is maintained in a fully open state, which is useful as an opening / closing door that is closed only when in use.
However, in such open / close doors of public toilets and the like, the substantially fully closed open / close body is continuously opened while being energized by the urging mechanism until it becomes substantially fully open. When there is a person or an object on the opening direction side, the opening / closing body may come into contact with the person or the object.
JP 2004-239046 A

  The present invention has been made in view of the above-described conventional circumstances, and the problem is that the opening / closing body is in an opening / closing position in an opening / closing door that is biased in an opening direction or a closing direction depending on the purpose of use. An object of the present invention is to provide an open / close door that can alleviate problems caused by the automatic operation of the open / close body in a predetermined biasing direction.

Means for solving the above problems, the opening and closing of the you open and close the opening opening closed field (110), and and a biasing mechanism (142) for urging said opening and closing member in the closing direction or opening direction A door,
The opening / closing body (110) connects the plurality of door bodies (111, 112) so that one of the adjacent door bodies rotates relative to the other, and of the plurality of door bodies. A door body (112) at one end in the width direction and a mounting plate (14) attached integrally to the door body are supported so as to be rotated by a base shaft portion (140) along the pivot axis (P) in the vertical direction. By doing so, it is configured in a substantially folding door shape,
The biasing mechanism (142) is provided on the base shaft part (140), and
A fixed support leg (12) fixed so as not to rotate about said pivot axis (P);
A cylindrical base (30) supported on the outer peripheral portion of the fixed support leg so as to rotate around the pivot axis and fixing the mounting plate to the outer peripheral portion;
A cylindrical casing (32) attached concentrically so as to rotate relative to the cylindrical base around the pivot axis;
A spring shaft (34) concentrically provided to rotate relative to the cylindrical casing around the pivot axis;
An elastic body (36) disposed around the spring shaft and having one end fixed to the cylindrical casing and the other end fixed to the spring shaft;
Between the outer periphery of the fixed support leg (12) and the inner periphery of the cylindrical base (30), the first, second and third rollers (18-1, 18-2, 18-3) Is provided,
First, second, and third recesses (20, 22, 24) that can fit and remove the first, second, and third rollers are spaced apart in the circumferential direction on the outer periphery of the fixed support leg (12). Formed,
The said cylindrical casing (32) is located between the outer peripheral part of the said fixed support leg, and the inner peripheral part of the said cylindrical base part, and accommodates the 2nd roller (18-2) so that a displacement in a radial direction is possible. A first driven member (46);
The spring shaft (34) is located between the outer peripheral part of the fixed support leg and the inner peripheral part of the cylindrical base part, and stores the third roller (18-3) so as to be displaceable in the radial direction. 2 driven members (52),
Fourth to seventh recesses (30-4, 30-5, 30-6, 30-7) into which the first, second, and third rollers can be fitted and removed are formed in the inner periphery of the cylindrical base (30). ) Are formed at intervals in the circumferential direction, and the driving member (42) is fixed so as to be positioned between the first driven member and the second driven member in the circumferential direction,
In an initial state before the mounting plate is rotated, the driving member (42) of the cylindrical base portion includes a first driven member (46) of the cylindrical casing and a second driven member of the spring shaft (34). The first roller (18-1) is disposed between the driving member (52) and the two members, and the fixed support leg (12) is supported by the inner peripheral surface of the cylindrical base (30). The second roller (18-2) is press-fitted into the first recess (20), and the second roller (18-2) is radially aligned with the third recess (24) of the fixed support leg (12) and the cylindrical base (30). The third roller (18-3) is located between the fifth concave portion (30-5) and the third roller (18-3) is radially aligned with the second concave portion (22) of the fixed support leg (12) and the cylindrical base portion (30). ) Between the fourth recess (30-4) and the sixth recess (30-6) and the seventh recess of the cylindrical base (30). (30-7) is located so as not to engage in any of said roller,
The second roller (18-2) is fitted in the fifth recess (30-5) of the cylindrical base (30) from the initial state until the mounting plate rotates to one side and reaches a predetermined opening / closing position. The driving member (42) of the cylindrical base pushes the first driven member (46) of the cylindrical casing (32) to rotate in the same direction, and at this time, the second of the spring shaft (34) The driven member (52) is prevented from rotating in the one direction by the first roller (18-1) fitted in the first recess (20) of the fixed support leg (12), and the cylindrical casing (32). And a relative rotation between the spring shaft (34) and the restoring force of the elastic body is accumulated,
When the mounting plate (14) further rotates to the one side and reaches the open / closed position, the fourth recess (30-4) of the cylindrical base (30) is fixedly supported until then. While aligning with the first roller (18-1) fitted in the first recess (20) of the leg (12), the sixth recess (30-6) of the cylindrical base (30) Aligned with the third roller (18-3) fitted in the second recess (22) of the fixed support leg (12),
When the mounting plate (14) further rotates to the one side from the aligned state, the first roller (18-1) and the third roller (18-3) are respectively connected to the fixed support leg (12). By disengaging from the first recess (20) and the second recess (22) and fitting into the fourth recess (30-4) and the sixth recess (30-6) of the cylindrical base (30), The driving member (46) and the second driven member (52) are connected via the cylindrical base (30), and the cylindrical casing (32) and the spring shaft (34) rotate integrally. The restoring force of the elastic body (36) does not act .

According to a first aspect, there is provided an opening / closing door comprising an opening / closing body supported so as to open / close while rotating, and an urging mechanism for urging the opening / closing body in a closing direction. When the opening / closing body is located within the biasing range on the closing direction side relative to the predetermined opening / closing position, the opening / closing body is biased in the closing direction, and the opening / closing body is opened in the opening direction from the biasing range. When positioned on the side, the opening / closing body is not biased.
Further, in the second embodiment, there is provided an opening / closing door comprising an opening / closing body supported so as to open / close while rotating, and an urging mechanism for urging the opening / closing body in the opening direction. The biasing mechanism biases the opening / closing body in the opening direction when the opening / closing body is located within the biasing range on the opening direction side relative to a predetermined opening / closing position, and the opening / closing body is more than the biasing range. when located in the closing direction side that is configured so as not to urge the closing member.

Here, the opening / closing door of the above embodiment may be configured to be opened and closed while rotating the opening / closing body, and this opening / closing door includes a swing door, a balance door, a folding door, etc. Not included.

  In addition, as a specific example of the urging mechanism, an elastic body such as a coil spring, a spring, a leaf spring, or rubber is provided, and the opening / closing body is attached to the elastic body only when the opening / closing body is located within the urging range. It may be configured to be biased in a predetermined biasing direction (closed direction or open direction) by the elastic force of, but as another configuration, a power source such as a rotary motor or a linear motor is provided, and the above opening / closing Only when the body is positioned within the biasing range, the opening / closing body may be moved in a predetermined biasing direction by the power source.

Further, in the third embodiment, the opening and closing member is a plurality of door body, that have one of the door body adjacent is constituted by connecting a substantially Orito shape which rotates relative to the other.

Moreover, in the 4th form , the said urging | biasing mechanism was comprised in the base shaft part which supports the said opening / closing body so that rotation is possible .

Further, in the fifth embodiment suppresses damper mechanism the operation of the urging direction of the closing body that is provided.

Further, in the sixth embodiment , the opening / closing door is provided with the opening / closing body so that the opening / closing body can be opened in both directions, and the thickness direction side with respect to the opening / closing body in the closed state is fixed to the stationary part that is immovable with respect to the rotating opening / closing body. An abutting member capable of moving in and out is provided between a projecting position approaching or contacting from and an immersive position that does not abut against the opening / closing body .

Here, specific examples of the immovable part include a frame member arranged around the opening / closing body, a structure to be installed on the opening / closing door, and the like.
In addition, the contact member may be configured to slide between the protruding position and the immersive position, or may be configured to rotate between the protruding position and the immersive position. Etc.

In the seventh embodiment , the urging mechanism includes an elastic body for urging the opening / closing body in a predetermined direction, and one end side of the elastic body is opposed to the opening / closing body and the elastic body. When locking to one of the immobile immovable parts and the other end side of the elastic body detachably with respect to the other, and the opening and closing body is located within the biasing range, By maintaining the locked state between the other end side and the other side of the elastic body, the elastic body biases the opening / closing body in a predetermined direction, and the opening / closing body is positioned within the biasing range. If not, the other end side of the elastic body is removed from the other side and locked to the one side so that the urging force of the elastic body does not act on the opening / closing body .

Since the said form is comprised as demonstrated above, there exists an effect as described below.
According to the first aspect , when the opening / closing body is opened by an external force such as a manual opening operation and the external force is removed during the opening operation, the opening / closing body is attached closer to the closing direction than the predetermined opening / closing position. When located within the urging range, the urging force in the closing direction acts on the opening / closing body, and therefore the opening / closing body automatically performs the closing operation. Further, when the opening / closing body is located on the opening direction side with respect to the urging range, the urging force does not act on the opening / closing body, so that the opening / closing body is stationary in a rotatable state.
Therefore, for example, when a passing person opens the opening / closing body to a middle position and tries to pass through the opened opening, if the middle position is a position on the opening direction side with respect to the biasing range, the opening is opened. The opened / closed body can be kept stationary in a rotatable state. Therefore, it is possible to prevent the opening / closing body from automatically closing and contacting a person who has performed the opening operation or a subsequent passer-by person without holding the opening / closing body opened halfway by hand. Can do.
In particular, even if the passing person is a relatively weak person such as a disabled person, the elderly, or a child, for example, it can be opened to a middle position and kept stationary without fully opening the opening and closing body, The burden on the opening operation can be reduced.
Moreover, since the opening / closing body can be kept stationary at an intermediate position, it is possible to keep the opening / closing body open to the minimum required opening amount for ventilation and other purposes. The application of the door can be expanded.
When the opening / closing body that is stationary at the midway position is further opened, the opening / closing body may be moved in the opening direction by hand or the like.
Further, when closing the opening / closing body stationary at an intermediate position, if the opening / closing body is slightly moved by hand until it is located within the urging range, the opening / closing body is then moved to the urging mechanism. It automatically closes by the urging force.

Further, according to the second embodiment , when the opening / closing body is located within the biasing range on the opening direction side from the predetermined opening / closing position, the biasing force in the opening direction acts on the opening / closing body. The opening / closing body automatically opens. When the opening / closing body is positioned closer to the closing direction than the urging range, the urging force does not act on the opening / closing body, so the opening / closing body is stationary in a rotatable state.
Therefore, according to the second embodiment , the opening / closing body in a substantially fully closed state is moved to a position before the biasing range, and it is confirmed that there is no person or object on the opening direction side of the opening / closing body, After that, the opening / closing body is slightly opened to within the urging range, and thereafter can be automatically opened by the urging force of the urging mechanism, and is particularly suitable as an opening / closing door for a public toilet or the like.

Furthermore, according to the third embodiment , since the opening / closing body is configured in a substantially folding door shape, the usability of the opening / closing door can be further improved, and the range of movement trajectory of the opening / closing door that has been opened / closed can be reduced. It can be made smaller and the open state can be made compact.

Furthermore, according to the fourth aspect , the biasing mechanism for biasing the opening / closing body in a predetermined direction within the biasing range can be made into a specific mode that is compact and has good productivity, and the biasing mechanism Since the mechanism is provided on the base shaft that is the center of rotation, the rotation of the opening / closing body can be smoothly performed.

Further, according to the fifth embodiment , the shock when the opening / closing body is fully moved in the urging direction and the speed during the operation of the opening / closing body in the urging direction can be reduced by the damper mechanism.

Furthermore, according to the sixth embodiment , if necessary, it is possible to select the opening direction of the opening / closing body to be restricted to one direction or both directions by projecting the abutting member, and the switching operation is also easy. Can be done.

Further, according to the seventh aspect , when the opening / closing body is located within the biasing range, one end side of the elastic body is locked to one of the opening / closing body and the stationary part, and Since the other end side of the body is locked to the other, the opening / closing body is biased in a predetermined direction by the elastic body.
When the opening / closing body is not located within the biasing range, the other end side of the elastic body is disengaged from the other and is locked to the one. That is, since both the one end side and the other end side of the elastic body are locked to the one side, the urging force of the elastic body does not act on the opening / closing body.
Therefore, according to this embodiment , the structure for urging the opening / closing body in a predetermined direction within the urging range can be a specific aspect with good productivity .

Next, a preferred specific example of the above embodiment will be described with reference to the drawings.
The following open / close doors are installed at doorways that are opened and closed in constructions and structures such as houses, buildings, warehouses, factories, underground malls, tunnels, and cargo platforms of vehicles, and open and close by turning the open / close body. Although applicable as a swing door, a balance door, a folding door, a gate door, etc., an example comprised as a double swing type folding door is demonstrated as a particularly preferable aspect.

The opening / closing door 1 includes an opening / closing body 110 supported so as to open / close while rotating, a frame body 120 surrounding an opening opened / closed by the opening / closing body 110, and a width of the opening / closing body 110 in accordance with the opening / closing operation. A guide mechanism 130 that guides in a direction (left and right direction in FIG. 1) and a base shaft portion 140 that rotatably supports the opening / closing body 110 with respect to the frame body 120 (see FIG. 1).
When the opening / closing body 110 is positioned within the urging range X on the closing direction side with respect to a predetermined opening / closing position due to the action of the urging mechanism 142 provided on the base shaft portion 140, the opening / closing door 1 is provided. The opening / closing body 110 is biased in the closing direction (see FIG. 2A), and when the opening / closing body 110 is positioned on the opening direction side of the biasing range X, the opening / closing body 110 is not biased (see FIG. 2). 2 (b)).

  The opening / closing body 110 connects a plurality (two in the illustrated example) of door bodies 111 and 112 in a substantially folding door shape in which one of the adjacent door bodies 111 and 112 rotates relative to the other. It consists of

According to the illustrated example, one door body 111 on the door tip side is configured in a substantially vertically long rectangular plate shape, and a handle portion 111a for opening and closing operation is fixed to the door tip side in the front portion and / or the back portion. The door body 112 is connected via a hinge mechanism 113 provided on the opposite side.
The door body 111 is hung at a portion near the center in the lateral width direction so as to be rotatable and slidable in the lateral width direction by a guide mechanism 130 described later. Therefore, the door body 111 rotates while moving in the lateral width direction along the guide mechanism 130 during the opening / closing operation.

  Further, according to the illustrated example, the other door body 112 is formed in a substantially vertically long rectangular plate shape having a width dimension smaller than that of the door body 111, and an end portion opposite to the hinge mechanism 113 in the lateral width direction is described later. The base shaft portion 140 is rotatably supported.

In addition, the hinge mechanism 113 is arranged so that two gear members 113a having a substantially fan-shaped cross section are engaged with each other, and the shaft centers of these gear members 113a are pivoted by brackets 113b so that each of them can be rotated. It is configured by pivotally supporting (see FIG. 2). Then, one gear member 113a is fixed to each of the upper and lower end portions at the end portion on the side facing the base shaft portion 140 side of the door body 111 on the door end side, and the other gear member 113a is The door body 112 on the base shaft portion 140 side is fixed to each of the upper and lower end portions at the end of the door body 112 facing the door end side.
According to this hinge mechanism 113, since the rotation in one direction in the door body 111 on the door end side and the rotation in the other direction in the door body 112 on the base shaft 140 side are interlocked, the opening / closing operation is smooth. Can be.

  The gap between the hinge mechanism 113 and the door bodies 111 and 112 is covered with closing members 114 and 114 formed by processing an elastic material such as rubber into a substantially hollow cross section. Therefore, it is possible to prevent a hand or an object from being caught in the gap between the hinge mechanism 113 and the door bodies 111 and 112.

The frame body 120 includes an upper frame member 121 extending in the lateral width direction (left and right direction in FIG. 1) on the upper side of the opening and closing body 110, and left and right vertical members extending downward from both ends of the upper frame member 121. The frame members 122 and 123 are formed in a substantially U-shaped frame shape and are fixed to the opening of the structure.
A guide mechanism 130 is fixed to the upper frame member 121 of the frame body 120 in the lateral width direction, and an upper end side of a base shaft portion 140 described later is supported.

The guide mechanism 130 includes a pivot shaft 131 supported near the center of the upper end portion of the door body 111 in the width direction, and two rollers 132 and 132 supported on the upper end of the pivot shaft portion 131 via a bracket or the like. And a rail member 133 serving as a rolling surface of the rollers 132 and 132 (see FIGS. 3 to 5).
The rotation shaft portion 131 is arranged so that the vertical direction of the door body 111 is an axis, and the door body 111 is rotatable and does not come out via a bearing member 135 (see FIG. 5) such as a bearing. Thus, the door body 111 is supported.
Each roller 132 is disposed so as to roll in the lateral width direction of the upper frame member 121, and is rotatably supported on the upper end side of the rotation shaft portion 131 via a support bracket 134.
The rail member 133 is a member having a substantially L-shaped cross section (see FIG. 5) that is fixed in the lateral width direction of the upper frame member 121, and on which the rollers 132 are mounted so as to roll.

  Further, the base shaft portion 140 urges the door body 112 in the closing direction while supporting the pivot member 141 that rotatably supports the upper end side of the door body 112 in the opening / closing body 110 and the lower end side of the door body 112. And an urging mechanism 142.

  According to the illustrated example, the pivot member 141 is configured in a substantially cylindrical shape, and its upper end portion is fixed to the upper frame member 121 and its lower end portion is engaged with the upper end side of the door body 112. By doing so, the door body 112 is supported so as to freely rotate about the pivot axis P in the vertical direction.

Although the urging mechanism 142 will be described in detail later, the urging mechanism 142 includes an elastic body 36 for urging the opening / closing body 110 in the closing direction. One end side is locked to the opening / closing body 110 side, and the other end side of the elastic body 36 is detachably locked to the stationary part that is immovable relative to the opening / closing body 110 so that the opening / closing body 110 is fixed. When the position is within the urging range X, the elastic body 36 urges the opening / closing body 110 in the closing direction by maintaining the locked state between the other end side of the elastic body 36 and the immovable portion. In addition, when the opening / closing body 110 is not located within the urging range X, the other end side of the elastic body 36 is removed from the stationary part side and locked to the opening / closing body 110 side, thereby This is a mechanism that prevents the biasing force of the body 36 from acting on the opening / closing body 110.
Furthermore, according to a preferred example of the present embodiment, the urging mechanism 142 includes an operation for urging the opening / closing body 110 in addition to the mechanism for urging the opening / closing body 110 as described above. A damper mechanism 18 is provided. The damper mechanism 18 reduces the operating speed of the opening / closing body 110 in the urging direction, or alleviates an impact when the opening / closing body 110 is fully moved in the urging direction. There are effects such as.

Thus, according to the opening / closing door 1 having the above-described configuration, when the opening / closing body 110 is opened in a substantially folding door shape by an external force such as a manual opening operation, the opening / closing body 110 is opened when the external force is removed during the opening operation. When the door end 110a is located within the biasing range X on the closing direction side relative to the predetermined opening / closing position, in other words, the internal angle θ between the door 112 being rotated and the center line Q in the width direction is within the predetermined angle. In this case, since the urging force in the closing direction by the urging mechanism 142 acts on the opening / closing body 110, the opening / closing body 110 automatically closes (see FIG. 2).
The urging range X is a predetermined range set in advance by the configuration of the urging mechanism 142, which will be described in detail later. According to the illustrated example, the door body 112 in the middle of rotation and the center line Q The inner angle θ is set within a range of about 80 degrees. More preferably, the urging range X is a range in which the internal angle θ between the rotating door body 112 and the center line Q is 70 to 80 degrees.
In addition, according to the illustrated example, the urging range X and the inner angle θ are set to a predetermined range set in advance by the configuration of the urging mechanism 142 as described above, but the inner angle θ is within a range within about 80 degrees. The angle may be finely adjusted.
Further, the setting of the urging range X and the internal angle θ may be set to a range in which a sufficient opening width can be ensured without causing any obstacle to passage of a person or the like when the door 1 is opened. It is more preferable to set a range in which more portions outside the urging range can be secured while ensuring.

  When the door 110a of the opening / closing body 110 is located on the opening direction side (the right side in FIG. 2) from the biasing range X, the biasing force in the closing direction by the biasing mechanism 142 is removed, so The body 110 is stationary in a rotatable state.

Therefore, for example, when a passing person opens the opening / closing body 110 to a middle position and tries to pass through the opened opening, the door 110a of the opening / closing body 110 is closer to the opening direction side than the biasing range X. If it is located, the opened opening / closing body 110 can be kept stationary in a rotatable state.
For this reason, in this stationary state, the opening / closing body 110 automatically closes to the person who has performed the opening operation or the passing person, etc., without holding the opening / closing body 110 opened to the middle position by hand. Can be prevented from touching.

Further, when the opening / closing body 110 that is stationary in the middle position is further opened, the opening / closing body 110 may be moved in the opening direction by a hand or the like.
Further, when closing the opening / closing body 110 that is stationary at an intermediate position, the opening / closing body 110 is slightly closed by hand until the door end 110a of the opening / closing body 110 is positioned within the biasing range X. After that, the opening / closing body 110 is automatically closed by the urging force of the urging mechanism 142. Then, the closing operation at that time is appropriately suppressed by the damper mechanism 18 provided in the urging mechanism 142.

According to the illustrated example, the open / close door 1 constitutes a double-folding type folding door that can be opened and closed in either direction of the center line Q, but a single-opening type folding door that can be opened and closed only in either the left or right direction. It is also possible to configure.
A preferred example of this configuration will be described in detail. An abutting member capable of coming into contact with the upper frame member 121 of the frame body 120 with respect to the front and back portions of the open / close body 110 in a closed state and capable of appearing and retracting. 121a and 121a may be provided (see FIG. 2).
One abutting member 121a slides between an immersive position where it is immersed in the upper frame member 121 and a protruding position where it protrudes out of the upper frame member 121 and can come into contact with the front portion of the opening / closing body 110. The member is supported so as to rotate, and is configured to be engaged and disengaged at both the protruding position and the immersion position.
The other abutting member 121a is configured in substantially the same manner as the abutting member 121a, and is arranged so as to be able to abut against the back of the opening / closing body 110 when protruding outside the upper frame member 121. Has been.
According to this configuration, the opening direction of the opening / closing body 110 can be regulated in one direction by causing the one abutting member 121a to protrude outside the upper frame member 121.
Furthermore, by making both contact members 121a and 121a protrude outside the upper frame member 121, the opening / closing body 110 can be brought into a locked state in which it cannot be opened.
In the above configuration, if one of the abutting members 121a and 121a is omitted, the opening / closing body 110 can always be opened and closed in one direction and can be opened and closed in the other direction as required. it can.
Further, in the above configuration, if one of the contact members 121a and 121a is fixed at the protruding position, the opening / closing body 110 can be opened / closed in one direction as required and opened / closed in the other direction. It is possible to make it impossible.

Next, the urging mechanism 142 provided in the door 1 will be described in more detail with reference to FIGS.
FIG. 6 is an enlarged vertical sectional view of the urging mechanism 142. As shown in the figure, this urging mechanism 142 includes a fixed support leg 12 supported so as not to rotate around the pivot P on a seat S embedded in an opening lower portion L such as a floor surface or a lower frame member. , Attached to the fixed support leg 12, attached to the fixed support leg 12 so as to be rotatable relative to the fixed support leg 12 around the pivot line P, and extended in the horizontal direction. With respect to the fixed mounting plate 14, the elastic urging mechanism 16 that urges the opening / closing body 110 within the predetermined urging range in the closing direction by the elastic force of the elastic body 36, and the opening / closing body 110 during the closing operation. And a damper mechanism 18 for applying a fluid braking force.

  FIG. 7 shows the parts of the fixed support leg 12 and the elastic urging mechanism 16 in an exploded manner. As shown in the figure, the fixed support leg 12 is provided with a lower portion 12-1 inserted and fixed to the seat S on the lowermost end side, and a large diameter portion in order from the lower portion 12-1. 12-2, the 1st small diameter part 12-3, the 2nd small diameter part 12-4, etc. are arrange | positioned.

  A thrust bearing 15 is provided at a step between the large diameter portion 12-2 and the first small diameter portion 12-3, and elastically energized so as to surround the first small diameter portion 12-3 on the thrust bearing 15. The mechanism portion 16 is placed, and the elastic biasing mechanism portion 16 is supported so as to be rotatable around the pivot line P with respect to the fixed support leg 12.

  First, second, and second rollers 18-1, second roller 18-2, and third roller 18-3, which will be described later with reference to FIG. Three recesses 20, 22, and 24 are provided.

  The elastic biasing mechanism portion 16 is mounted on the fixed support leg 12 so as to be rotatable around the pivot line P, and is attached concentrically on the cylindrical base portion 30. A cylindrical casing 32 that is rotatable relative to the pivot 30 around the pivot axis P and is concentrically mounted in the cylindrical casing 32, and is pivoted relative to the cylindrical casing 32. And a resilient shaft 36 that is a coil spring disposed around the spring shaft 34.

  The cylindrical base 30 has a large-diameter portion 30-1, a first small-diameter portion 30-2, and a second small-diameter portion 30-3 in order from the bottom, and is provided on the outer periphery of the lower end of the large-diameter portion 30-1. The base end ring portion 14 'of the mounting plate 14 is fixed, the bearing member 40 is provided on the outer periphery of the second small diameter portion 30-3, and the inner peripheral surface thereof will be described later with reference to FIG. The drive member 42 is fixed. Further, fourth to seventh recesses 30-4, 30-5, 30-6, and 30-7 for receiving rollers, which will be described later with reference to FIG. 9, are provided on the inner peripheral surface of the cylindrical base portion 30. .

The lower end of the cylindrical casing 32 is placed on the step portion between the large diameter portion 30-1 and the second small diameter portion 30-3 of the cylindrical base 30 and extends to the upper end of the biasing mechanism 142. It is made rotatable relative to the cylindrical base 30 around the pivot line P.
A first driven member 46 described later with reference to FIGS. 8 and 9 is fixed to an inner peripheral surface near the lower end of the cylindrical casing 32 via a cylindrical fixing member 48. As shown in FIGS. 8 and 9, the first driven member 46 extends in an angle range of about 60 degrees around the pivot axis P and extends in the pivot axis P direction to increase the diameter of the cylindrical base 30. 30-1 is extended.
The first driven member 46 is provided with a first through hole 46-1 (see FIG. 7 and FIG. 9) penetrating in the radial direction, and the first through hole 46-1 is provided in the second roller 18-. 2 is accommodated so as to be displaceable in the radial direction.

The spring shaft 34 includes an upper end portion 34-1 having a diameter larger than that of the lower end side on the upper end side. The upper end portion 34-1 is supported by the lower end so as to close the lower end of the damper cylinder 50 that constitutes the damper mechanism 18, and the upper end portion 34-1 will be described in more detail. A shaft support part 32 a fixed on the inner peripheral surface of the cylindrical casing 32 is rotatably supported via a thrust bearing 54. The lower end 34-2 of the spring shaft 34 is substantially in contact with the upper end of the second small diameter portion 12-4 of the fixed support leg 12.
A second driven member 52 extending parallel to the pivot axis P is fixed to the lower end 34-2 of the spring shaft 34. The second driven member 52 is connected to the second small diameter portion 12 of the fixed support leg 12. -4 extends in an angular range of about 60 degrees in substantially the same manner as the first driven member 46 described above, and a second roller 18-3 is accommodated in the central portion thereof so as to be displaceable in the radial direction. A through hole 52-1 is formed.
The elastic body 36 is a coil spring according to the present embodiment, and has a lower end fixed to the spring shaft 34 and an upper end fixed to the cylindrical casing 32.

As shown in FIG. 6, the damper mechanism 18 has a general-purpose mechanism, is fixed to the upper end of the spring shaft 34, extends upward inside the cylindrical casing 32, and stores the damper liquid therein to be sealed. The above-described damper cylinder 50 that defines the damper chamber, and a piston that is hermetically slidably engaged with the inner wall surface of the damper cylinder 50 and separates the damper cylinder 50 into an upper chamber 50-1 and a lower chamber 50-2. 56 and a piston rotation drive member 58 fixed to the upper end portion of the cylindrical casing 32 and extending downward from the upper end of the damper cylinder 50 into the upper chamber 50-1 and connected to the piston 56.
The piston rotation drive member 58 is spline-coupled to the piston 56, and the piston 56 cannot move relative to the piston rotation drive member 58 but can move up and down.
In the illustrated example, the piston 56 has a substantially cylindrical shape, and is separated into an upper chamber 50-1 and a lower chamber 50-2 by a separation member 56-1 attached to an inner lower end thereof.
The upper chamber 50-1 is vertically separated by a portion of the piston rotation drive member 58 splined to the piston 56, but is fluidly communicated via the spline coupling portion.
The piston 56 is Ri Contact is engaged the inner circumferential surface and the thread engagement of the damper cylinder 50, when driven to rotate by the piston rotation drive member 58 by a threaded engagement with the inner circumferential surface of the damper cylinder 50, the displacement in the (vertical direction No) The damper cylinder 50 is moved up and down. Specifically, the piston rotation drive member 58 rotates relative to the damper cylinder 50 when the opening / closing body 110 moves in the closing direction and the cylindrical casing 32 and the spring shaft 34 rotate relatively. As a result, the piston 56 rotates relative to the damper cylinder 50, thereby moving down in the damper chamber.

The piston 56 is provided with a first fluid passage for allowing fluid to flow from the lower chamber 50-2 to the upper chamber 50-1 when the piston 56 descends in the damper chamber. In the example, it is provided in the center of the separating member 56-1 so as to extend along the pivot line P, and the through hole 56-2 forms this. A passage resistance adjusting member 60 is passed through the through hole 56-2, and the passage resistance adjusting member 60 rotates a manual rotation adjusting member 61 provided at the upper end of the biasing mechanism 142. Accordingly, the through-hole 56-2, that is, the flow resistance of the first fluid passage can be adjusted by moving in the vertical direction and changing the position in the vertical direction.
The piston 56 allows fluid to flow from the upper chamber 50-1 to the lower chamber 50-2 when it rises in the damper chamber, and when it descends, from the lower chamber 50-2 to the upper chamber 50-. A second fluid passage 64 with a check valve is provided to prevent the fluid from flowing to 1.

8, the driving member 42 fixed to the cylindrical base 30 is fixed to the first driven member 46 fixed to the cylindrical casing 32 and the spring shaft 34. The intermediate position of the second driven member 52 is a position that comes into contact with both members.
Further, in the same state, as shown in FIG. 9, the first roller 18-1 is formed in the first recess 20 provided in the second small diameter portion 12-4 of the fixed support leg 12 by the inner peripheral surface of the cylindrical base 30. The second roller 18-2 is press fitted and positioned between the third recess 24 and the fifth recess 30-5 aligned in the radial direction, and the third roller 18-3 is aligned in the radial direction. It is made to be located between the 2nd recessed part 22 and the 4th recessed part 30-4. And the 6th recessed part 30-6 and the 7th recessed part 30-7 exist in the position shown in figure, without engaging with the said roller.

Hereinafter, an operation of the urging mechanism 142 when the door body 112 and the mounting plate 14 of the opening / closing body 110 are rotated left and right will be described.
First, when the door body 112 of the opening / closing body 110 is rotated leftward (counterclockwise) on the basis of the case where the rotation angle is 0 degree, it is integrated with the mounting plate 14 fixed to the door body 112. Similarly, the cylindrical base portion 30 is also turned leftward, and the driving member 42 attached to the cylindrical base portion 30 is opposed to the first driven member 46 fixed to the cylindrical casing 32 as shown in the figure. It rotates clockwise (see FIG. 8A).
At this time, the second driven member 52 fixed to the spring shaft 34 is prevented from rotating counterclockwise by the first roller 18-1 (see FIG. 9A). Relative rotation occurs between the spring 32 and the spring shaft 34, thereby accumulating the restoring force of the elastic body 36 that is a coil spring.
In the illustrated example, when the door body 112 and the mounting plate 14 of the opening / closing body 110 are rotated to about 70 degrees, the fourth recess 30-4 is fixed to the fixed support leg 12 until then. The sixth recess 30-6 is aligned with the first roller 18-1 in the radial direction and substantially simultaneously with the third roller 18-3, which has been fixed to the fixed support leg 12 until then. Align (see FIG. 9A, left rotation angle 70 degrees).
In this aligned state, when the door body 112 is rotated to an angle larger than this, the first roller 18-1 and the third roller 18-3 are disengaged from the first recess 20 and the second recess 22 of the fixed support leg 12, respectively. Since the fourth recessed portion 30-4 and the sixth recessed portion 30-6 are fitted to each other, the first driven member 46 and the second driven member 52 are connected via the cylindrical base portion 30, and the cylindrical casing 32 is connected. The spring shaft 34 is integrated in the rotational direction.
Therefore, in this state, the restoring force of the elastic body 36 between the integrated cylindrical casing 32 and the spring shaft 34 does not act, and the door body 112 can be stationary in a rotatable state. It becomes like this.

Further, when the door body 112 and the mounting plate 14 of the opening / closing body 110 are rotated to the right, the integral second driven member 52 and the spring shaft 34 are first integrated, contrary to the case of the left rotation described above. However, since the rotated spring shaft 34 is rotated relative to the stationary cylindrical casing 32, the restoring force by the elastic body 36 is accumulated (see FIG. 8 (b)).
Then, when the door body 112 and the mounting plate 14 are rotated to an angle of about 70 degrees or more, the first driven member 46 and the second driven member 52 move the third roller 18-3 and the second roller 18-2. Thus, the cylindrical casing 32 and the spring shaft 34 are integrated with each other so that the restoring force of the elastic body 36 does not act on the door body 112 and the mounting plate 14. It becomes a state.

As can be seen from the above, when the door body 112 and the mounting plate 14 are turned left and right by the opening / closing operation of the opening / closing body 110, the spring shaft 34 and the cylindrical casing 32 are relatively in the same direction (that is, the cylindrical casing). The cylindrical casing 32 is rotated clockwise and the cylindrical casing 32 is rotated counterclockwise with respect to the spring shaft 34, and the elastic body 36 is wound up. At this time, the damper cylinder fixed to the spring shaft 34 is used. 50 is rotated in the same direction with respect to the cylindrical casing 32, and the piston 56 is raised in the damper cylinder 50.
Further, when the opening / closing body 110 is rotated in the closing direction, the spring shaft 34 and the cylindrical casing 32 are relatively rotated in the opposite direction to that when the opening / closing body 110 is opened, regardless of whether the opening / closing body 110 is rotated in the left or right direction. As a result, the piston 56 is lowered in the cylindrical casing 32 to give a required resistance to the restoring force of the opening / closing body 110.

  Next, another example of the opening / closing door according to the present invention will be described. In addition, about the opening / closing door shown below, about the location substantially the same as what was mentioned above, the detailed description which overlaps by using the same code | symbol as the said opening / closing door 1 is abbreviate | omitted.

The door 2 shown in FIGS. 10 and 11, if roughly described, replaces the biasing mechanism 142 in the door 1 with a biasing mechanism 142 ′ that does not include the damper mechanism 18, and replaces the damper mechanism 18. The damper mechanism 150 is provided in the upper frame member 121.
The urging mechanism 142 ′ is configured by omitting the damper mechanism 18 from the urging mechanism 142 shown in FIG. The urging mechanism 142 ′ is used upside down as in the case of the open / close door 1, and is supported by the upper frame member 121 in a state where the mounting plate 14 is fixed to the upper end side portion on the proximal end side of the door body 112. Has been.
Therefore, the lower end side portion on the base end side of the door body 112 is rotatably supported by the pivot member 141 ′ supported by the opening lower portion L such as the floor surface, the ground, or the lower frame.

The damper mechanism 150 includes a rack 151 fixed to the upper frame member 121 and a braking device 152 that engages with and disengages from the rack 151.
The rack 151 is fixed to the opening / closing body door end side (the left side in the drawing) of the upper frame member 121 with the tooth portion 151a facing downward.
The braking device 152 includes a rotating body that exposes a tooth portion 152a that can mesh with the tooth portion 151a of the rack 151 to the outer periphery, and a main body portion that rotatably supports the rotating body. The rotation of the rotating body is braked by the resistance of the fluid contained in the roller, and is supported by a support bracket 134 that supports the roller 132.
Thus, according to the open / close door 2, when the open / closed body 110 is closed, the tooth portion 152 a of the braking device 152 is engaged with the tooth portion 151 a of the rack 151 during the closing of the open / close body 110. The closing operation is suppressed.

12 (a) and 12 (b) has a configuration in which the biasing mechanism 142 is replaced with a biasing mechanism 142 ″ with respect to the door 1 described above.
The urging mechanism 142 ″ is configured to connect two urging hinge portions 142a ″ and 142b ″ symmetrically (see FIG. 13).
The urging mechanism 142 ″ has an attachment portion 142a1 ″ of one urging hinge portion 142a ″ fixed to the door body 112 of the opening / closing body 110 and an attachment portion 142b1 of the other urging hinge portion 142b ″. ”Is fixed to the vertical frame member 123 of the frame body 120.

One biasing mechanism 142a ″ acts to rotate the door body 112 of the opening / closing body 110 to one side with the center line Q as a boundary (see FIG. 12A), and the other biasing hinge portion 142b. "Acts to rotate the door body 112 to the other side with the center line Q as a boundary (see FIG. 12B).
One biasing hinge part 142a "is configured to bias the door 110a of the opening / closing body 110 closer to the closing direction than the predetermined opening / closing position when the door body 112 of the opening / closing body 110 rotates to the one side. When positioned within the range X, the door body 112 of the opening / closing body 110 is urged in the closing direction, and when the door end 110a is positioned on the opening direction side of the urging range X, the opening / closing body 110 of the opening / closing body 110 is urged. The door body 112 is configured not to be urged.
Further, the other biasing hinge part 142b ″ biases the door 110a of the opening / closing body 110 closer to the closing direction than the predetermined opening / closing position when the door 112 of the opening / closing body 110 rotates to the other side. When positioned within the range X, the door body 112 of the opening / closing body 110 is urged in the closing direction, and when the door end 110a is positioned closer to the opening direction than the urging range X, the opening / closing body 110 is urged. The door body 112 is not biased.
Thus, according to the open / close door 3, it is possible to obtain substantially the same operational effects as the above-described urging mechanism 142 with a simpler structure.
The shape of the biasing mechanism 142 ″ is shown in FIG. 13 as an example. However, the configuration is not limited to the illustrated example if the basic structure is as described above.
In the open / close door 3, the damper mechanism that suppresses the closing operation of the open / close body 110 may be configured to be included in each of the urging hinge portions 142 a ″ and 142 b ″ in substantially the same manner as the open / close door 1. It is good also as a structure arrange | positioned by the upper frame member 121 like the said opening-and-closing door 2. FIG.

In the open / close doors 1, 2 and 3, when the opening / closing body 110 is positioned within the biasing range X on the closing direction side from a predetermined opening / closing position, the opening / closing body 110 is biased in the closing direction. Although it is configured, when the opening / closing body 110 is positioned within the biasing range on the opening direction side from a predetermined opening / closing position, the opening / closing body 110 may be biased in the opening direction. .
In this case, for example, in the door 1, the urging mechanism 142 is disposed by being rotated about 90 degrees around the pivot axis P, and the fixed support leg 12 of the urging mechanism 142 is fixed to an immobile site. At the same time, the door body 112 may be fixed to the mounting plate 14 of the urging mechanism 142.
According to this configuration, when the door tip 110a of the opening / closing body 110 is located within the biasing range on the opening direction side from the predetermined opening / closing position, the opening / closing body 110 is biased in the opening direction, and the door tip When the 110a is positioned closer to the closing direction than the biasing range, the opening / closing body 110 can be prevented from being biased.

Further, according to the above embodiment, the urging mechanism for urging the opening / closing body 110 in the predetermined direction is provided in the base shaft portion 140 or the upper frame member 121 of the opening / closing body 110. It is also possible to provide a connecting portion between the two door bodies 111 and 112.
In this case, for example, in the open / close door 3, one attachment portion 142 a 1 ″ of the urging mechanism 142 ″ (see FIG. 13) is fixed to one of the two door bodies 111 and 112, and the other The mounting portion 142b1 ″ may be fixed to the other of the two door bodies 111 and 112.

  Further, the urging mechanism may be configured to be provided in the guide mechanism 130 (see FIGS. 3 and 4). In this case, for example, in the open / close door 1, the fixed support leg 12 of the urging mechanism 142 may be fixed to the support bracket 134 and the mounting plate 14 of the urging mechanism 142 may be fixed to the door body 111. .

It is a front view which shows an example of the opening / closing door concerning this invention. It is operation | movement explanatory drawing which shows the opening / closing operation | movement of the opening / closing body in the opening / closing door, (a) shows the state in which the opening / closing body was closed, (b) shows the state in which the opening / closing body was opened to the predetermined opening and closing position. Show. In the same opening-and-closing door, it is an enlarged front view showing the state where an opening-and-closing body was fully closed, and cuts out a principal part and shows an internal structure. In the same opening-and-closing door, it is an enlarged front view showing the state where an opening-and-closing body was fully closed, and cuts out a principal part and shows an internal structure. It is a longitudinal cross-sectional view which shows the guide mechanism in the opening / closing door. It is a longitudinal cross-sectional view which shows the urging | biasing mechanism in the opening / closing door. It is a decomposition | disassembly longitudinal cross-sectional view which shows the same urging | biasing mechanism. FIG. 7 is a cross-sectional view taken along line (VIII)-(VIII) in FIG. 6, (a) sequentially shows a state in which the mounting plate is rotated to the left, and (b) sequentially shows a state in which the mounting plate is rotated to the right. It shows. FIG. 7 is a cross-sectional view taken along line (IX)-(IX) in FIG. 6, where (a) sequentially shows a state in which the mounting plate is rotated to the left, and (b) sequentially shows a state in which the mounting plate is rotated to the right. It shows. It is another example of the opening-and-closing door concerning this invention, Comprising: It is an enlarged front view which shows the state in which the opening-and-closing body was fully closed, and has cut off the principal part and has shown the internal structure. It is another example of the opening-and-closing door concerning this invention, Comprising: It is an enlarged front view which shows the state by which the opening-and-closing body was fully opened, and cut off the principal part and has shown the internal structure. In the other example of the opening-and-closing door concerning this invention, it is operation | movement explanatory drawing which shows the opening-and-closing operation | movement of an opening-closing body, (a) shows the state by which the opening-closing body was opened to the opening-and-closing middle position in one rotation direction, (b ) Shows a state in which the opening / closing body is opened to an intermediate opening / closing position in the other rotation direction. It is a front view which shows an example of the urging | biasing mechanism in the opening / closing door.

36: Elastic body 110: Opening and closing body 111, 112: Door body 120: Frame body 121: Upper frame member 121a: Contact member 130: Guide mechanism 140: Base shaft portion 141: Pivoting member 142: Biasing mechanism 18, 150: Damper mechanism X: Energizing range

Claims (6)

And an open closed field you open and close the opening, a door provided with the biasing mechanism for biasing the closing member in the closing direction or opening direction,
The open / close body connects the plurality of door bodies so that one of the adjacent door bodies rotates relative to the other, and the door body on one end side in the lateral width direction of the plurality of door bodies, And by supporting the mounting plate integrally attached to the door body so as to be rotated by the base shaft part along the pivot axis in the vertical direction, it is configured in a substantially folding door shape,
The biasing mechanism is provided on the base shaft portion,
A fixed support leg fixed so as not to rotate about said pivot axis;
A cylindrical base that is supported by the outer peripheral portion of the fixed support leg so as to rotate around the pivot axis and that fixes the mounting plate to the outer peripheral portion;
A cylindrical casing concentrically attached to the cylindrical base so as to rotate relatively around the pivot axis;
A spring shaft that is concentrically provided to rotate relative to the cylindrical casing around the pivot axis;
An elastic body disposed around the spring shaft, having one end fixed to the cylindrical casing and the other end fixed to the spring shaft;
Between the outer peripheral portion of the fixed support leg and the inner peripheral portion of the cylindrical base, first, second and third rollers are provided,
First, second, and third recesses capable of fitting and removing the first, second, and third rollers are formed on the outer peripheral portion of the fixed support leg at intervals in the circumferential direction.
The cylindrical casing includes a first driven member that is positioned between an outer peripheral portion of the fixed support leg and an inner peripheral portion of the cylindrical base portion and stores a second roller so as to be displaceable in a radial direction. ,
The spring shaft has a second driven member that is positioned between the outer peripheral portion of the fixed support leg and the inner peripheral portion of the cylindrical base portion and accommodates the third roller in a radially displaceable manner,
In the inner peripheral portion of the cylindrical base portion, fourth to seventh recesses capable of fitting and removing the first, second, and third rollers are formed at intervals in the circumferential direction, and the first in the circumferential direction. The driving member is fixed so as to be positioned between the driven member and the second driven member,
In an initial state before the mounting plate is rotated, the driving member of the cylindrical base is between the first driven member of the cylindrical casing and the second driven member of the spring shaft. The fixed support is arranged so as to contact the member, the first roller is press-fitted into the first recess of the fixed support leg by the inner peripheral surface of the cylindrical base, and the second roller is aligned in the radial direction. Located between the third recess of the leg and the fifth recess of the cylindrical base, the third roller is between the second recess of the fixed support leg and the fourth recess of the cylindrical base aligned in the radial direction. And the sixth recess and the seventh recess of the cylindrical base are positioned so as not to engage any of the rollers,
From the initial state until the mounting plate rotates to one side and reaches a predetermined opening and closing position, the second roller fits into the fifth recess of the cylindrical base, and the drive member of the cylindrical base is the cylinder The first driven member of the cylindrical casing is pushed and rotated in the same direction. At this time, the second driven member of the spring shaft is rotated in the one direction by the first roller fitted into the first recess of the fixed support leg. Is prevented, relative rotation occurs between the cylindrical casing and the spring shaft, whereby the restoring force of the elastic body is accumulated,
When the mounting plate is further rotated to the one side to reach the opening / closing position, the fourth recess of the cylindrical base has been fitted into the first recess of the fixed support leg until then. The sixth recess of the cylindrical base is aligned with the third roller that has been fitted in the second recess of the fixed support leg,
When the mounting plate further rotates to the one side from the aligned state, the first roller and the third roller are disengaged from the first recess and the second recess of the fixed support leg, respectively, and the fourth of the cylindrical base portion. By fitting the recess and the sixth recess, the first driven member and the second driven member are connected via the cylindrical base, and the cylindrical casing and the spring shaft rotate integrally. The opening / closing door is characterized in that the restoring force of the elastic body does not act . The biasing mechanism closes the door body and the mounting plate in the closing direction when the door body and the mounting plate supported by the base shaft portion are located within the biasing range on the closing direction side relative to the opening / closing middle position. The door body and the mounting plate are configured not to be biased when the door body and the mounting plate are positioned on the opening direction side of the biasing range. Opening / closing door described. The biasing mechanism opens the door body and the mounting plate in the opening direction when the door body and the mounting plate supported by the base shaft portion are located within the biasing range on the opening direction side from the opening and closing position. 2. When the door body and the mounting plate are positioned closer to the closing direction than the biasing range, the door body and the mounting plate are not biased. Opening / closing door described. An opening / closing door provided with the opening / closing body so that it can be double-opened,
When the mounting plate is rotated in the opposite direction to the one-way rotation, the integral second driven member and the spring shaft are first rotated in the opposite direction by the driving member. The spring shaft is rotated relative to the stationary cylindrical casing, thereby accumulating the restoring force by the elastic body,
When the mounting plate rotates more than the halfway position, the first driven member and the second driven member are connected to the cylindrical base via the third roller and the second roller, The open / close door according to any one of claims 1 to 3 , wherein a cylindrical casing and the spring shaft are integrated so that a restoring force of the elastic body does not act on the mounting plate . A projecting position that approaches or comes into contact with the closed opening / closing body from the thickness direction side on a stationary part that does not move with respect to the rotating opening / closing body, and an immersion position that does not contact the opening / closing body The opening / closing door according to claim 4, further comprising an abutting member capable of moving in and out. The opening / closing door according to any one of claims 1 to 5, further comprising a damper mechanism that suppresses an operation of the opening / closing body in an urging direction .

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