JP4121549B1 - Door panel interlocking mechanism - Google Patents

Abstract

An object of the present invention is to provide a door panel interlocking mechanism that can open and close a folding door without using a guide rail and can be more reliable than before.
A door panel interlocking mechanism 10 according to the present invention has a hinge pin 103P, an assist bar base end pivot support shaft 11, a swing bar base end pivot support shaft 12, and an assist bar tip pivot support shaft 14 as a pair. A four-bar linkage mechanism having a pivot bar 15, an assist bar 17, a first panel 101, and a hinge piece 103 </ b> H connected to each other so as to be a node (link) is configured, and the first bar is not used. It becomes possible to change the folding door 100 from the closed state to the open state by interlocking the panel 101 and the second panel 102. Further, since the door panel interlocking mechanism 10 has a structure of a four-bar linkage mechanism, reliability can be improved as compared with an interlocking mechanism using a linear member.
[Selection] Figure 7

Description

  The present invention relates to a folding door having a first panel pivotably connected to one side edge of an opening formed in a wall, and a second panel pivotally connected to the first panel. And a door panel interlocking mechanism that interlocks the first panel and the second panel.

  As a conventional door panel interlocking mechanism, a guide roller is provided at the upper end or lower end of the second panel, and the guide roller is slidably engaged with a guide rail provided on the ceiling or floor of the opening. Is known (see, for example, Patent Document 1). However, in this door panel interlocking mechanism, the guide rail provided on the floor surface becomes a step, which may hinder barrier-free operation. Moreover, since a guide rail is required separately, installation work is troublesome.

On the other hand, while the pulleys are pivotally supported on the first panel and the second panel, the pulleys are connected to each other by a linear member such as a wire, a belt, or a chain, thereby interlocking the first panel and the second panel. A door panel interlocking mechanism that enables opening and closing of a folding door without using a guide rail is known (see, for example, Patent Document 2).
JP 2004-204557 A (paragraphs [0027]-[0031], FIGS. 1 and 5) Japanese Utility Model Publication No. 59-58192 (FIGS. 1 to 4)

  However, in the conventional door panel interlocking mechanism described above, there is a concern that the linear member may be elongated due to use over time, and loosening may occur. In this case, there is a problem that the opening / closing operation of the folding door becomes unstable. .

  The present invention has been made in view of the above circumstances, and provides a door panel interlocking mechanism that can open and close a folding door without using a guide rail and can improve reliability more than the conventional one. Objective.

  In order to achieve the above object, the door panel interlocking mechanism (10) according to the invention of claim 1 is rotatable to one side edge (111A) of the opening (111) formed in the wall (110). Of the folding door (100) having a first panel (101) coupled to the first panel (101) and a second panel (102) pivotably coupled to the tip of the first panel (101). The first and second panels (101, 102) are provided on either end face and are in a closed state in which the first and second panels (101, 102) are parallel to the opening surface of the wall (110). In the door panel interlocking mechanism (10) that interlocks the first and second panels (101, 102) when they overlap with each other and change to an open state standing from the opening surface, the first panel (101) A first fulcrum for the wall (110) Nel base end rotation fulcrum (103P), second panel base end rotation fulcrum (40P, 101P) which is a rotation fulcrum with respect to the first panel (101) of the second panel (102), and wall body (110). Assist bar base end rotation fulcrum (positioned on the second panel (102) side in the width direction of the opening (111) with respect to the first panel base end rotation fulcrum (103P) 11) and the first panel base end pivot in the width direction of the opening (111) with respect to the second panel base end pivot fulcrum (40P, 101P). A swivel bar base end turning fulcrum (12) arranged at a position shifted to the fulcrum (103P) side, and a swiveling bar tip turning fulcrum (13) arranged at the tip position or intermediate position of the second panel (102). And the base end of the swivel bar base end rotation fulcrum (12) can be rotated. It is connected and extends along a straight line connecting the turning bar base end turning fulcrum (12) and the turning bar tip turning fulcrum (13), and the turning bar base end turning fulcrum (12) and the turning bar tip turning fulcrum (13). A turning bar (15, 20, 30) having an assist bar tip turning fulcrum (14) at an intermediate position of the moving fulcrum (13), an assist bar base end turning fulcrum (11), and an assist bar tip turning fulcrum ( 14) and an assist bar (17) that is rotatably connected at both ends thereof, and provided between the tip of the swivel bar (15, 20, 30) and the second panel (102). 15, 20, 30) is connected to the turning bar tip turning fulcrum (13) so as to be directly or indirectly rotatable and is connected so as to be able to move directly in the longitudinal direction of the turning bar (15, 20, 30). A rotation mechanism (13, 16, 24, 25, 33) and a first panel base A fixed line segment (L3) connecting the end rotation fulcrum (103P) and the assist bar base end rotation fulcrum (11), the first panel base end rotation fulcrum (103P) and the rotation bar base end rotation fulcrum. The first rotation line segment (L1) connecting between (12) and the second rotation line segment connecting between the assist bar base end rotation fulcrum (11) and the assist bar tip rotation fulcrum (14). (L2) and a turning line segment (L4) connecting the turning bar base end turning fulcrum (12) and the assist bar tip turning fulcrum (14). The lengths of L2, L3, and L4) are maintained constant, and the angle between adjacent line segments changes in conjunction with each other, and the first rotation line segment (L1) and the turning line segment (L4) The swivel bar base end pivot fulcrum (12) that is the intersection of the second pivot line segment (L2) and the pivot line segment (L4). It is configured to be located on the first panel base end rotation fulcrum (103P) side in the closed state and away from the first panel base end rotation fulcrum (103P) in the open state with respect to the cyst bar tip rotation fulcrum (14). It has the characteristics in that place.

  According to a second aspect of the present invention, in the door panel interlocking mechanism (10) according to the first aspect of the present invention, the swivel bar tip pivoting fulcrum (13) is pivotally connected and the swivel bar (20, 30) is extended. A sub swivel bar (21, 31) extending upward is provided, and the swivel bar (20, 30) is located at an intermediate position between the swivel bar base end pivot fulcrum (12) and the pivot bar tip pivot fulcrum (13). And the sub-swivel bar (21, 31) are connected to each other so as to be linearly movable, and the linearly rotating mechanism (24, 25, 33) is configured.

  According to a third aspect of the present invention, in the door panel interlocking mechanism (10) according to the first aspect, a long hole (16) is provided at the tip of the swivel bar (15) and provided at the swivel bar tip rotation fulcrum (13). The pin (13) is accommodated in the elongated hole (16) so as to be movable and rotatable, and the linearly rotating mechanism (13, 16) is configured.

  The invention of claim 4 is characterized in that, in the door panel interlocking mechanism (10) according to any one of claims 1 to 3, the width of the second panel (102) is made larger than the width of the first panel (101). Have

  According to a fifth aspect of the present invention, in the door panel interlocking mechanism (10) according to any one of the first to fourth aspects, the first panel (101) and the second panel (102) are rotated only in one direction from the closed state. The first panel base end rotation fulcrum (103P) and the second panel base end rotation fulcrum (40P) are arranged separately on the front and rear in the plate thickness direction of the first panel (101) and are assisted. The bar base end rotation fulcrum (11) is arranged at a position overlapping the first panel (101) in the vertical direction, and the first rotation line segment (L1) and the second rotation are between the closed state and the open state. The line segment (L2) is characterized in that it is configured not to overlap with a straight line.

  According to a sixth aspect of the present invention, in the door panel interlocking mechanism (10) according to the fifth aspect, the first panel (101) and the wall (110) when the first panel base end rotation fulcrum (103P) is closed. A gap (41) for preventing finger filling is formed between the base end portion of the first panel (101) and the wall body (110) in a closed state. Have

  According to a seventh aspect of the present invention, in the door panel interlocking mechanism (10) according to any one of the first to fourth aspects, the first panel (101) and the second panel (102) are moved from the closed state to the opening (111). It is characterized in that it is configured so that it can be rotated in both the back side and the near side, and each line segment (L1, L2, L3, L4) of the link configuration quadrilateral is arranged in a straight line in the closed state.

  The invention according to claim 8 is the door panel interlocking mechanism (10) according to claim 7, wherein the first panel fixing gear (60) fixed to the front end of the first panel (101) in a non-rotatable manner, It is fixed to the base end of the panel (102) in a non-rotatable manner, engages with the outer peripheral surface of the first panel fixing gear (60), and is rotated by the second panel (102) relative to the first panel (101). It has a feature in that it includes a second panel fixing gear (61) capable of rolling on the outer peripheral surface of the panel fixing gear (60).

  A ninth aspect of the present invention is the door panel interlocking mechanism (10) according to any one of the first to eighth aspects, wherein the first panel (101) can be pivoted between the base end portion and the wall body (110). The hinge (103) connected to the first panel (101) and the hinge (40) rotatably connected between the distal end of the first panel (101) and the proximal end of the second panel (102) are closed. It is characterized in that it is a biasing hinge that biases the folding door (100).

  A tenth aspect of the present invention is the door panel interlocking mechanism (10) according to any one of the first to ninth aspects, wherein the first panel (101) is fixed to either the upper or lower end face of the first panel (101). The first panel fixing sheet metal (50) having the same planar shape as viewed from above and below the tip of the first panel is fixed to either the upper or lower end surface of the second panel (102), and the second panel (102 ) And the second panel fixing sheet metal (51) having the same planar shape as the planar shape seen from the vertical direction, and the swiveling bar proximal end rotation to a predetermined position of the first panel fixing sheet metal (50) A turning bar base end turning support shaft (12) as a fulcrum (12) is provided, and a turning bar tip turning as a turning bar tip turning fulcrum (13) is provided at a predetermined position of the second panel fixing sheet metal (51). Characterized by the location where the support shaft (13) is provided

[Inventions of Claims 1, 2 and 3]
The inventors of the present application, when changing the opening (111) from the closed state to the open state, without using the guide rail, the first panel (101) and the second panel (102) of the folding door (100) In conjunction with the door panel interlocking mechanism (10) capable of interlocking, more specifically, the second panel (102) rotates in one direction in the front-rear direction with respect to the opening surface of the wall (110). The first panel (101) is rotated to the other side in the front-rear direction with respect to the opening surface, and the first panel (101) and the second panel (102) overlap each other at one side edge (111A) of the opening (111). In order to develop a door panel interlocking mechanism (10) that can be operated so as to stand upright from the opening surface, it has been earnestly researched. As a result, by forming a four-bar rotating chain (four-bar link mechanism) between the wall body (110) and the folding door (100), the first panel (101) and the second panel can be used without using a guide rail. The inventors have found that the panel (102) can be interlocked, and have completed the invention of claim 1.

  That is, as shown in FIG. 7, the door panel interlocking mechanism (10) according to the first aspect of the present invention connects the first panel base end turning fulcrum (103P) and the turning bar base end turning fulcrum (12). A first rotation line segment (L1), a second rotation line segment (L2) connecting the assist bar base end rotation support shaft (11) and the assist bar tip end rotation support shaft (14), and the first panel base A fixed line segment (L3) connecting the end rotation fulcrum (103P) and the assist bar base end rotation support shaft (11), a rotation bar base end rotation support shaft (12), and an assist bar tip end rotation support shaft ( 14) and a turning line segment (L4) shorter than the fixed line segment (L3). Further, in this link configuration quadrilateral, the length of each line segment (L1 to L4) is kept constant, and the angle between the adjacent line segments changes in conjunction with each other. Specifically, the fixed line segment L3 is fixed among the quadrilaterals constituting the link, and the assist bar distal end rotation fulcrum (14) is centered on the assist bar proximal end rotation fulcrum (11) and the second rotation line. The swivel bar base end pivot fulcrum (12) moves about the first panel base end pivot fulcrum (103P) and moves in the first direction. It moves on an arc locus S2 drawn with the line segment (L1) as a turning radius. At this time, the distance between the assist bar tip turning fulcrum (14) and the turning bar base end turning fulcrum (12), that is, the length of the turning line segment L4 is kept constant. In the closed state, the turning bar base end turning fulcrum (12) is positioned closer to the first panel base end turning fulcrum (103P) than the assist bar tip turning fulcrum (14). The end rotation fulcrum (12) moves away from the first panel base end rotation fulcrum (103P) from the assist bar tip rotation fulcrum (14).

  Here, when the link configuration quadrilateral changes between the closed state and the open state, the rotation direction of the first rotation line segment (L1) about the first panel base end rotation fulcrum (103P) The turning direction of the turning line segment (L4) around the turning bar base end turning fulcrum (12) is opposite to each other. Accordingly, the first panel (101) rotates to the other side in the front-rear direction relative to the opening surface in conjunction with the operation of the second panel (102) rotating to one side in the front-rear direction relative to the opening surface of the wall (110). Will do.

  Further, when the turning bar base end rotation fulcrum (12) is in the closed state with respect to the assist bar tip end rotation fulcrum (14), it is located on the first panel base end rotation fulcrum (103P) side, and in the opened state, the first bar fulcrum (12P) By moving away from the panel base end rotation fulcrum (103P), compared to the operating angle (θ1) of the first rotation line segment (L1) centered on the first panel base end rotation fulcrum (103P). The operating angle (θ2) of the turning line segment (L4) about the turning bar base end turning fulcrum (12) is increased. As a result, the operating angle of the second panel (102) relative to the first panel (101) becomes larger than the operating angle of the first panel (101) relative to the opening surface of the opening (111). The first panel (101) and the second panel (102) overlap each other at one side edge (111A) of the opening (111) and stand up from the opening surface.

  As described above, according to the present invention, the second panel (102) and the first panel (101) are interlocked without using the guide rail, and the folding door (100) is folded, that is, the opened state. It becomes possible to. And since the guide rail is no longer necessary, the labor involved in the installation work is reduced. In addition, the guide rail can be attached to a place where it cannot be installed, and the degree of freedom of the installation place is improved. Furthermore, since the door panel interlocking mechanism (10) has a structure of a four-bar linkage mechanism, the reliability can be improved as compared with a conventional interlocking mechanism using a linear member such as a belt, a wire, or a chain. .

  Here, when changing from the closed state to the open state, the swivel bar base end pivot fulcrum (12) provided near the tip of the first panel (101) and the tip of the second panel (102). Alternatively, the swivel bar tip rotation fulcrum (13) arranged at the intermediate position gradually approaches, so that there is a gap between the tip of the swivel bar (15, 20, 30) and the second panel (102). The swivel bar (15, 20, 30) is connected to the swivel bar tip turning fulcrum (13) so as to be directly or indirectly rotatable, and can be moved directly in the longitudinal direction of the swivel bar (15, 20, 30). A linear motion rotation mechanism (13, 16, 24, 25, 33) to be connected is required.

  In the case where the linearly rotating mechanism is configured as in the invention of claim 2, the swing bar (20, 30) and the sub-swivel bar (21, 31) are changed when changing from the closed state to the open state. ) In a direction opposite to each other, the pivot bar base end pivot fulcrum (12) and the pivot bar tip pivot fulcrum (13) approach each other.

  Further, when the linear motion rotation mechanism is configured as in the invention of claim 3, a pin (13) provided on the rotation bar tip rotation fulcrum (13) when changing from the closed state to the open state ( 13) moves in the elongated hole (16) at the distal end of the swivel bar (15) toward the swivel bar base end pivot fulcrum (12), so that the swivel bar base end pivot fulcrum (12) and the swivel bar The tip rotation fulcrum (13) approaches.

[Invention of claim 4]
According to the invention of claim 4, when the first panel (101) and the second panel (102) are folded at one side edge (111A) of the opening (111), the second panel (102). Since the front end portion of the first panel protrudes from the base end portion of the first panel (101), the opening / closing operation can be performed with the front end portion of the second panel (102).

[Invention of claim 5]
According to invention of Claim 5, operation at the time of opening a foldable door (100) (it makes into an open state) can be varied by the one side and the other side of the front-back direction of opening (111). . Specifically, when the door opening operation is performed from one side in the front-rear direction of the opening (111), the second panel (102) is pushed to the back side, and conversely, the front-rear direction of the opening (111). When the door opening operation is performed from the other side, the second panel (102) is pulled to the near side.

[Invention of claim 6]
According to the sixth aspect of the present invention, in the closed state, the fingers are not stuffed (pinched) between the wall (110) and the base end of the first panel (101).

[Invention of Claim 7]
According to the seventh aspect of the present invention, when the folding door (100) is opened (in the open state), the second panel (102) may be pushed to the back side of the opening (111), or the front side. Since you may pull to the side, the freedom degree of door opening operation improves.

[Invention of Claim 8]
According to the eighth aspect of the present invention, the first panel fixing gear (60) and the second panel fixing gear (61) are engaged with each other, so that the gap between the first panel (101) and the second panel (102) is obtained. The backlash can be reliably suppressed and the opening / closing operation can be performed more smoothly.

[Invention of claim 9]
According to the ninth aspect of the present invention, when the hand is released from the folding door (100) in the open state, the folding door (100) is automatically closed and closed, so that an operation for closing the door is unnecessary. It becomes. In addition, forgetting to close can be prevented. Here, the biasing hinge may be a gravity hinge that is closed by the weight of the folding door (100), or may be a spring hinge that is closed by the biasing force of the torsion coil spring.

[Invention of Claim 10]
According to the invention of claim 10, when the first panel fixing sheet metal (50) is fixed to either the upper or lower end surface of the first panel (101), the planar shape of the first panel fixing sheet metal (50) is the first. When overlapping so as to match the planar shape of the front end of the panel (101) in the vertical direction, the swivel bar base end pivot support shaft (12) as the swivel bar base end pivot support point (12) becomes the first panel ( 101). When the other first panel fixing sheet metal (50) is fixed to the other first panel (101) in the same manner as this, the swiveling bar base end rotation with respect to the first panel (101) is performed. Variations in the fixed position of the support shaft (12) can be suppressed.

  Further, when the second panel fixing sheet metal (51) is fixed to either the upper or lower end surface of the second panel (102), the planar shape of the second panel fixing sheet metal (51) is the base end of the second panel (102). When they are overlapped so as to coincide with the planar shape of the part in the vertical direction, the turning bar tip turning support shaft (13) as the turning bar tip turning fulcrum (13) is positioned at a predetermined position of the second panel (102). The When the other second panel fixing sheet metal (51) is fixed to the other second panel (102) in the same manner as described above, the pivot bar tip rotation support for the second panel (102) is performed. Variations in the fixed position of the shaft (13) can be suppressed.

[First Embodiment]
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.
FIG. 1 shows a folding door 100 for opening and closing an opening 111 formed in the wall body 110. As shown in the figure, the folding door 100 is attached to one side edge of the opening 111 (hereinafter referred to as “hanging side edge 111A”) in a state of being floated from the floor surface. The folding door 100 includes a first panel 101 that is rotatably connected to the suspension side edge portion 111 </ b> A, and a second panel 102 that is rotatably connected to a distal end portion of the first panel 101. Yes. The horizontal width of the second panel 102 is larger than that of the first panel 101, and handles 104 and 104 are provided on both surfaces of the second panel 102 in the plate thickness direction.

  The folding door 100 has a closed posture (the state shown in FIGS. 1 and 4) in which the first panel 101 and the second panel 102 are arranged in parallel with the opening surface of the opening 111, and the first and second panels 101 and 102. Is displaced between the door opening posture (the state shown in FIG. 6) folded at the suspension side edge 111A. The opening 111 is closed when the door is closed, and the opening 111 is fully opened when the door is open.

  Here, the folding door 100 is attached so that the lateral width in the closed posture is smaller than the lateral width of the opening 111, and the first panel 101 and the second panel 102 are just fit inside the opening 111 in the closed posture. (See FIGS. 1 and 4). Further, when the panels 101 and 102 are in the door-opening posture in which the panels 101 and 102 are folded at the suspension side edge portion 111A, the distal end portion of the second panel 102 protrudes from the proximal end portion of the first panel 101 (see FIG. 6). Since the handles 104 and 104 are provided on the protruding portion, the handle 104 does not interfere even if the first panel 101 and the second panel 102 are folded, and the first panel 101 and the second panel 102 Can be folded until it stands upright from the opening surface (see FIG. 6).

  When the required parts of the folding door 100 are described in detail, the base end portion of the first panel 101 is rotated by a pair of upper and lower first hinges 103 and 103 fixed to the suspension side edge portion 111A of the wall body 110. It is pivotally supported. The first hinges 103 and 103 are, for example, center-hung type pivot hinges, and project a hinge pin 103P (corresponding to the “first panel base end rotation fulcrum” of the present invention) vertically from a horizontal hinge piece 103H. Structure. The hinge piece 103H projects from the suspension side edge 111A in the width direction of the opening 111, and the hinge pin 103P is disposed at a position slightly apart from the suspension side edge 111A in the hinge piece 103H. The first panel 101 is rotatable in both the front and rear directions (up and down directions in FIG. 4) of the opening surface with the pair of upper and lower hinge pins 103P and 103P as the rotation center (rotation fulcrum) with respect to the wall 110. Yes.

  Here, the first hinge 103 may be a gravity hinge (corresponding to the “biasing hinge” of the present invention) that can return the folding door 100 from the open position to the closed position by its own weight. In this way, by releasing the hand from the folding door 100 in the open position, the folding door 100 automatically returns to the closing position and the opening 111 is closed, so that an operation for closing the door is unnecessary. Become. In addition, forgetting to close can be prevented. Furthermore, since the folding door 100 is always biased to the closing posture, it is possible to prevent accidental opening due to wind or the like.

  Alternatively, in combination with a stopper (for example, a magnet latch) that holds the folding door 100 in the open position, the folding door 100 can be stopped in the open position, and when closing, the folding door 100 is moved slightly from the open position. Only after that, the door may be automatically closed by the biasing force of the biasing hinge.

  In addition, while narrowing the gap between the base end portion of the first panel 101 and the suspending side edge portion 111A as much as possible, it is structured so that fingers are not easily caught, and at the time of rotation of the first panel 101 around the hinge pin 103P, In order to prevent the first panel 101 and the wall body 110 (hanging side edge portion 111A) from contacting each other, the side surface of the base end portion of the first panel 101 is centered on the hinge pin 103P over the entire vertical direction. It is chamfered into an arc shape. Further, in the present embodiment, the lower first hinge 103 (hinge piece 103H) is laid and fixed on the floor surface (see FIG. 1), but it may be lifted and fixed from the floor surface.

  Between the front end portion of the first panel 101 and the base end portion of the second panel 102, the second panel 102 is positioned in both the front and rear directions (front side) of the opening surface with respect to the first panel 101 in a closed posture (closed state). Both are connected by a double-folding second hinge 106 that can be bent in both the upper and lower directions in FIG. As shown in FIG. 2, the second hinge 106 is equivalent to the hinge pin 101P (the “second panel base end pivoting fulcrum” of the present invention) disposed at the distal end portion of the first panel 101 and on the center line in the thickness direction. And a hinge pin 102P disposed on the center line in the plate thickness direction at the base end portion of the second panel 102, and the hinge plate 105 is connected to both hinge pins 101P and 102P. Can be rotated. A plurality of second hinges 106 are provided in the vertical direction of the folding door 100 (only one upper end portion of the folding door 100 is shown in FIG. 1). In addition, while narrowing the gap between the distal end portion of the first panel 101 and the proximal end portion of the second panel 102 as much as possible, the structure is such that fingers are not easily pinched, and at the time of rotation of the second panel 102 with respect to the first panel 101, In order to prevent them from coming into contact with each other, the side surface of the distal end portion of the first panel 101 and the side surface of the proximal end portion of the second panel 102 are chamfered in an arc shape centering on the hinge pins 101P and 102P over the entire vertical direction. Has been.

  By the way, the first panel 101 and the second panel 102 are interlocked to the lower end surface of the folding door 100 described above when changing between a closed state (closed posture) and an open state (opened posture). For this purpose, a door panel interlocking mechanism 10 is provided. The door panel interlocking mechanism 10 includes a turning bar 15 that connects the first panel 101 and the second panel 102, and an assist bar 17 that connects the turning bar 15 and the wall 110.

  As shown in FIGS. 3 and 4, the swivel bar 15 and the assist bar 17 are made of, for example, a strip-shaped sheet metal (for example, an aluminum flat bar), and the width dimension thereof is the first panel 101 and the second bar. It is smaller than the thickness of the panel 102. Further, the lengths of the turning bar 15 and the assist bar 17 are different, and the assist bar 17 is longer.

  As shown in FIG. 3, on the lower surface of the distal end portion of the first panel 101, there is a pivot bar base end pivot shaft 12 (the pivot bar base end of the present invention) which is a pivot point of the base end portion of the pivot bar 15. (Corresponding to “rotating fulcrum”) is fixed. The swivel bar base end pivot support shaft 12 is shifted from the hinge pin 101P of the second hinge 106 toward the hinge pin 103P side of the first hinge 103 (base end side of the first panel 101) in the width direction of the opening 111. Is arranged. The base end of the swivel bar 15 is rotatably connected to the first panel 101 by the swivel bar base end pivot support shaft 12. The swivel bar base end rotation support shaft 12 is a rivet or a screw, and prohibits the connection between the base end of the swivel bar 15 and the first panel 101.

  A metal base plate 50 (corresponding to the “first panel fixing sheet metal” of the present invention) is fixed to the lower surface of the front end portion of the first panel 101. The planar shape of the base plate 50 is the same as the planar shape when the front end portion of the first panel 101 is viewed from above and below. That is, the base plate 50 has the same width as the plate thickness dimension of the first panel 101, and the distal end portion has the same arc shape as the side surface of the distal end portion of the first panel 101. At a predetermined position near the tip of the base plate 50, the turning bar base end turning support shaft 12 is fixed. Specifically, the outer edge portion of the base plate 50 is flush with the side surface of the front end portion of the first panel 101 and both side surfaces in the plate thickness direction so that the planar shape thereof matches the flat shape of the front end portion of the first panel 101. In such a manner, the first panel 101 is fixed so as to overlap the lower end surface. Thereby, the dispersion | variation in the fixed position of the turning bar base end rotation spindle 12 with respect to the 1st panel 101 can be suppressed easily. Further, since the swivel bar base end pivot shaft 12 is fixed to the first panel 101 via the metal base plate 50, the first is compared with the case where it is directly fixed to the wooden first panel 101. The fixing strength of the turning bar base end rotation support shaft 12 with respect to the panel 101 can be increased.

  As shown in FIG. 3, a long hole 16 extending along the longitudinal direction is formed through the front end side of the swivel bar 15. In the long hole 16, a swivel bar tip turning support shaft 13 (corresponding to the “swivel bar tip turning fulcrum” and “pin” of the present invention) is engaged so as to be linearly movable and rotatable. The swivel bar tip turning support shaft 13 is a rivet or screw that passes through the long hole 16 from below and is fixed to the lower surface of the second panel 102, and is provided between the tip of the swivel bar 15 and the second panel 102. Decoupling is prohibited. The elongated hole 16 and the pivot bar tip pivoting support shaft 13 that is engaged with the elongated hole 16 so as to be able to move linearly and turnably correspond to the “linear movement turning mechanism” of the present invention.

  A metal base plate 51 (corresponding to the “second panel fixing sheet metal” of the present invention) is fixed to the lower surface of the base end portion of the second panel 102. The planar shape of the base plate 51 is the same as the planar shape when the base end portion of the second panel 102 is viewed from above and below. That is, the base plate 51 has the same width as the thickness of the second panel 102, and the base end portion has the same arc shape as the side surface of the base end portion of the second panel 102. At a predetermined position near the tip of the base plate 51, the turning bar tip turning support shaft 13 is fixed. In detail, the outer edge portion of the base plate 51 is on the side surface of the base end portion of the second panel 102 and both side surfaces in the plate thickness direction so that the planar shape thereof matches the planar shape of the base end portion of the second panel 102. The second panel 102 is fixed so as to be flush with the lower end surface of the second panel 102. Thereby, the dispersion | variation in the fixed position of the turning bar front-end | tip rotation spindle 13 with respect to the 2nd panel 102 can be suppressed easily. Further, since the pivot bar tip pivot support shaft 13 is fixed to the second panel 102 via the metal base plate 51, the second panel is compared with the case where it is directly fixed to the wooden second panel 102. The fixing strength of the turning bar tip turning support shaft 13 with respect to 102 can be increased.

  In the middle part of the swivel bar 15 in the longitudinal direction, there is provided an assist bar tip turning support shaft 14 (corresponding to the “assist bar tip turning fulcrum” of the present invention) which is a turning fulcrum of the tip of the assist bar 17. It has been. The assist bar tip turning support shaft 14 is provided between the elongated hole 16 and the turning bar base end turning support shaft 12 in the turning bar 15, more specifically, from the middle position of the turning bar base end turning support shaft. It is arranged at a position close to the shaft 12. The assist bar tip turning support shaft 14 protrudes on the lower surface side of the swivel bar 15, and the tip portion of the assist bar 17 and the swivel bar 15 are rotatably connected to the lower surface side of the swivel bar 15. The assist bar tip turning support shaft 14 is a rivet or a screw, and prohibits the connection between the assist bar 17 and the turning bar 15.

  Here, a cylindrical spacer member 18 is attached to the outside of the assist bar tip turning support shaft 14, and between the lower surface of the swivel bar 15 and the upper surface of the assist bar 17 by the spacer member 18. A predetermined gap is formed (see FIG. 3). The clearance bar is configured so that the pivot bar base end pivot shaft 12 (rivet or screw head) protruding to the lower surface side of the pivot bar 15 and the assist bar 17 do not interfere with each other.

  As shown in FIG. 3, of the pair of first hinges 103, 103, the lower first hinge 103 has an assist bar base end pivot that is a pivot point of the base end of the assist bar 17. 11 (corresponding to “assist bar base end rotation fulcrum” of the present invention) is fixed. The assist bar base end rotation support shaft 11 is vertically fixed to the upper surface side of the hinge piece 103H. Further, the assist bar base end rotation support shaft 11 is shifted to the second panel 102 side (side away from the suspension side edge portion 111A) in the width direction of the opening 111 with respect to the hinge pin 103P and is closed in the closed state. It is arranged at a position overlapping with one panel 101 in the vertical direction. By this assist bar base end rotation support shaft 11, the base end portion of the assist bar 17 is rotatably connected to the hinge piece 103H. The assist bar base end rotation support shaft 11 is formed of a rivet or a screw, and the connection between the base end portion of the assist bar 17 and the hinge piece 103H is prohibited.

  As shown in FIG. 4, the assist bar base end rotating support shaft 11, the swiveling bar base end rotating support shaft 12, the swiveling bar tip end rotating support shaft 13, and the assist bar tip end rotating support shaft 14 described above The panel 101 and the second panel 102 are disposed on the center line in the plate thickness direction of the first panel 101 and the second panel 102 in a closed state (closed posture) in which the panel 101 and the second panel 102 are disposed in parallel to the opening surface of the opening 111. In this state, the turning bar 15 and the assist bar 17 are arranged in parallel to the first panel 101 and the second panel 102 and overlap the first panel 101 and the second panel 102 in the vertical direction. And since the whole door panel interlocking mechanism 10 is hidden on the lower surface of the folding door 100 (the first panel 101 and the second panel 102), the appearance of the folding door 100 in the closed state (closed posture) is good. It has become.

  By the way, among the folding doors 100 described above, the hinge pin 103P, the assist bar base end pivot support shaft 11, the pivot bar base end pivot support shaft 12, and the assist bar tip pivot support shaft 14 can be rotated with each other. The swivel bar 15, the assist bar 17, the first panel 101, and the hinge piece 103 </ b> H connected to each other constitute a four-joint rotating chain (four-joint link mechanism) in which all four joints (links) are connected in pairs.

  This four-bar rotation chain can be expressed as the skeleton model shown in FIG. That is, the first rotation line segment L1 connecting the hinge pin 103P and the turning bar base end rotation support shaft 12, and the second connecting the assist bar base end rotation support shaft 11 and the assist bar tip rotation support shaft 14. A turning line segment L2, a fixed line segment L3 connecting the hinge pin 103P and the assist bar base end pivot shaft 11, and a pivot connecting the pivot bar base end pivot shaft 12 and the assist bar tip pivot shaft 14. A link configuration quadrilateral formed of a line segment L4 is formed, and each of the line segments L1 to L4 includes a hinge pin 103P, an assist bar base end rotation support shaft 11, a swivel bar base end rotation support shaft 12 and an assist as a turning pair. Four nodes (links) are connected by the bar tip rotation support shaft 14. The line segments L1 to L4 are all different in length, and are shortened in the order of the first rotation line segment L1, the second rotation line segment L2, the fixed line segment L3, and the turning line segment L4. Of these line segments L1 to L4, the fixed line segment L3 facing the turning line segment L4 which is the shortest node is a fixed node. Here, the state shown in FIG. 7A corresponds to the state shown in FIG. 4 (closed state), the state shown in FIG. 7D corresponds to the state shown in FIG. 5, and shown in FIG. The state corresponds to the state (open state) shown in FIG.

  When this link configuration quadrilateral (four-node rotating chain) changes between the closed state (the state shown in FIG. 7A) and the open state (the state shown in FIG. 7E), each line segment L1 The angle between adjacent line segments (line segments connected by turning pairs) changes in conjunction with the length of L4 being kept constant.

  Specifically, in the closed state, the hinge pin 103P, the assist bar base end pivot support shaft 11, the pivot bar base end pivot support shaft 12, and the assist bar tip pivot support shaft 14 are on a straight line parallel to the opening surface. The pivot bar base end pivot support shaft 12 is disposed on the hinge pin 103P side from the assist bar tip pivot support shaft 14 (the side closer to the suspension side edge 111A in the width direction of the opening 111). ). In the process of changing from the closed state to the open state (change from FIG. 7A to FIG. 7E), the assist bar distal end pivot support shaft 14 is centered on the assist bar proximal end pivot support shaft 11. And the second turning line segment L2 moves on the arc locus S1 drawn with the turning radius, and the turning bar base end turning support shaft 12 turns around the hinge pin 103P and the first turning line segment L1. It moves on an arc locus S2 drawn as a radius. During this time, the distance between the assist bar distal end pivot support shaft 14 and the pivot bar base end pivot support shaft 12, that is, the length of the pivot line segment L4 is maintained constant. Further, as the state approaches the open state (position in FIG. 7E), the assist bar front end rotation support shaft 14 approaches the hinge pin 103P, and in the open state, the swivel bar base end rotation support shaft 12 moves to the assist bar front end. The position is farther from the hinge pin 103P than the pivot shaft 14. Although not shown in FIG. 7, in the process of changing from the closed state to the open state, between the hinge pins 101P and 102P, between the hinge pin 101P and the pivot bar base end pivot shaft 12, and with the hinge pin 102P. Each distance between the bar tip turning support shaft 13 is kept constant, and the turning bar tip turning support shaft 13 is always on the extension line of the turning line segment L4 (from the assist bar tip turning support shaft 14). It is located on a straight line extending in the opposite direction to the line segment L4. Furthermore, a line segment connecting the hinge pin 101P and the hinge pin 102P is always parallel to the opening surface (see FIGS. 4 to 6).

  Here, in the process of changing from the closed state to the open state, the rotation direction of the first rotation line segment L1 about the hinge pin 103P and the rotation line segment about the rotation bar base end rotation support shaft 12 are used. The directions of rotation of L4 are opposite to each other. For example, in FIG. 7, the first rotation line segment L1 rotates clockwise about the hinge pin 103P, and the rotation line segment L4 rotates counterclockwise about the rotation bar base end rotation support shaft 12. Move. If this is replaced with the operation of the first panel 101 and the second panel 102, the first panel 101 is opened in conjunction with the rotation of the second panel 102 to one side in the front-rear direction with respect to the opening surface of the wall 110. Rotating to the other side in the front-rear direction with respect to. Specifically, as shown in the change from FIG. 4 to FIG. 5, when the second panel 102 rotates counterclockwise in FIG. 4 with respect to the opening surface of the wall body 110, The panel 101 rotates in the clockwise direction with respect to the opening surface to be bent as shown in FIG.

  Further, the pivot bar base end pivot support shaft 12 is located on the hinge pin 103P side in the closed state with respect to the assist bar tip pivot support shaft 14, and is moved away from the hinge pin 103P in the open state. The operating angle θ2 of the turning line segment L4 with the turning bar base end turning support shaft 12 as the turning fulcrum is larger than the operating angle θ1 of the first turning line segment L1 as the turning fulcrum. As a result, the operating angle of the second panel 102 relative to the first panel 101 is larger than the operating angle of the first panel 101 relative to the opening surface of the opening 111 between the closed state and the open state. In a state where the panel 101 stands up at right angles to the opening surface (the state shown in FIG. 6), the second panel 102 can be rotated to a position where the panel 101 overlaps the first panel 101.

  Based on the above, the operation of the folding door 100 and the door panel interlocking mechanism 10 when the opening 111 changes from the closed state to the open state will be described. As shown in FIG. 4, when the second panel 102 of the folding door 100 is pulled to the front side of the opening 111 in the closed state (closed posture), for example, the second panel 102 is against the tip of the first panel 101. Rotate. Then, as shown in the change from FIG. 4 to FIG. 5, the second panel 102 rotates with respect to the first panel 101 in one direction in the front-rear direction of the opening surface (the direction indicated by the arrow Y <b> 1 in FIG. 5).

  As the second panel 102 rotates with respect to the first panel 101, the assist bar 17 rotates in the direction opposite to the second panel 102 about the assist bar base end rotation support shaft 11 (the direction indicated by the arrow Y2 in FIG. 5). To turn. At this time, the swivel bar 15 that connects the tip of the assist bar 17 and the tip of the first panel 101 pushes the tip of the first panel 101 toward the suspension side edge 111A side, and the first panel 101 rotates about the hinge pin 103P in the direction opposite to the second panel 102 (same direction as the assist bar 17). Thereby, the connection part of the 1st panel 101 and the 2nd panel 102 bends in the shape of "<", and protrudes toward the back | inner side of the opening 111. FIG.

  Here, the distance between the swivel bar base end pivot support shaft 12 fixed to the first panel 101 and the swivel bar tip end pivot support shaft 13 fixed to the second panel 102 is as follows. It is the longest and becomes shorter as it approaches the open state. In the present embodiment, in the process of changing from the closed state to the open state, the swivel bar distal end pivot support shaft 13 fixed to the second panel 102 pivots within the elongated hole 16 of the swivel bar 15. They move toward the support shaft 12 and approach them. As shown in FIG. 5, in the half-open state between the closed state and the open state, a part of the door panel interlocking mechanism 10 (the turning arm 15 and the assist arm 17) is moved laterally from the lower surface of the folding door 100. Although it protrudes, it only protrudes to the inside of the first panel 101 and the second panel 102 bent in the shape of "<", so that it does not hinder the operation or passage of the folding door 100.

  When the second panel 102 is further rotated from the state shown in FIG. 5, the first panel 101 is further rotated in conjunction with this, and the second panel 102 approaches to be folded toward the first panel 101. At the same time, the first panel 101 is drawn toward the suspension side edge portion 111A. That is, the entire folding door 100 moves toward the suspension side edge portion 111A while the bending between the first panel 101 and the second panel 102 gradually deepens.

  When the first panel 101 stands at a right angle with respect to the opening surface at the suspension side edge 111A, the second panel 102 stands at a right angle with respect to the opening surface so as to fold over the first panel 101. Thus, the opening 111 is opened. In this open state, the tip of the swivel bar 15 protrudes slightly to the side of the folding door 100, but the other parts are hidden by the lower surface of the folding door 100. It is good.

  Thus, the folding door 100 provided with the door panel interlocking mechanism 10 of the present embodiment moves the first panel 101 and the second panel 102 in an interlocked state from the closed state to the open state without using a guide rail. And can be changed. And since the guide rail is no longer necessary, the labor involved in the installation work is reduced. In addition, the guide rail can be attached to a place where it cannot be installed, and the degree of freedom of the installation place is improved. Further, since the door panel interlocking mechanism 10 has a structure of a four-bar linkage mechanism, reliability can be improved as compared with an interlocking mechanism using a linear member such as a belt, a wire, or a chain. As a result, the maintenance burden can be reduced.

[Second Embodiment]
8 to 11 show a second embodiment of the present invention. As shown in FIG. 8, the door panel interlocking mechanism 10 of the present embodiment includes a sub-swivel bar 21 on the extension of the swivel bar 20, and the point that these are connected so as to be linearly movable in the longitudinal direction. Different from the first embodiment. Since other configurations are the same as those in the first embodiment, the same reference numerals are given to the same configurations, and duplicate descriptions are omitted.

  As shown in FIG. 9, the swivel bar 20 and the sub-swivel bar 21 are configured by a strip-shaped sheet metal (a flat bar made of aluminum). The swivel bar 20 is pivotally supported at the base end portion thereof by the swivel bar base end pivot support shaft 12, and the distal end portion extends toward the pivot bar distal end pivot support shaft 13. On the other hand, the sub swivel bar 21 is pivotally supported by a swivel bar distal end pivot support shaft 13 whose distal end is fixed at a substantially middle position between the distal end and the base end of the second panel 102. The base end portion extends toward the turning bar base end rotation support shaft 12. Then, at the intermediate position between the turning bar base end turning support shaft 12 and the turning bar tip turning support shaft 13, the tip end portion of the turning bar 20 and the base end portion of the sub turning bar 21 are in the vertical direction (plate thickness direction). Are connected by a slide long hole 24 and a slide projection 25 provided in the overlapping portion so as to be linearly movable.

  The slide long hole 24 is provided on the tip side of the turning bar 20 from the assist bar tip turning support shaft 14, and extends in the longitudinal direction of the turning bar 20. On the other hand, the slide protrusion 25 is provided at the base end portion of the sub turning bar 21 and protrudes toward the turning bar 20, and the slide protrusion 25 is engaged in the slide long hole 24. The slide protrusion 25 has an oval shape extending in the longitudinal direction of the sub-swivel bar 21 and can move in the longitudinal direction within the slide slot 24, but cannot rotate relative to the slide slot 24. It has become. Thereby, the distance between the turning bar base end turning support shaft 12 and the turning bar tip turning support shaft 13 can be expanded and contracted within the range of the linear motion stroke of the slide protrusion 25. Here, the slide long hole 24 and the slide protrusion 25 engaged with the slide long hole 24 correspond to the “linear motion turning mechanism” of the present invention.

  According to the door panel interlocking mechanism 10 of the present embodiment, as shown in the changes to FIGS. 9 to 11, the folding door 100 changes toward the door opening posture (open state), and the first panel 101 and When the connecting portion with the second panel 102 bends, the slide protrusion 25 provided on the sub-swivel bar 21 moves toward the assist bar tip pivot support shaft 14 in the slide long hole 24 formed in the swivel bar 20. And move straight. Thereby, the turning bar base end turning support shaft 12 and the turning bar tip turning support shaft 13 approach each other. Then, when the first panel 101 and the second panel 102 are in the open state (the state shown in FIG. 11) where the first panel 101 and the second panel 102 are folded over at the suspension-side edge portion 111A, the slide protrusion 25 is supported by the assist bar tip rotation support shaft 14. The distance between the swivel bar base end pivot support shaft 12 and the swivel bar tip pivot support shaft 13 is the shortest. At this time, almost the entire door panel interlocking mechanism 10 is hidden behind the folding door 100, so that the appearance is good.

  On the contrary, when the folding door 100 changes from the open position toward the closed position (closed state), the slide protrusion 25 provided in the sub swivel bar 21 is formed in the slide long hole formed in the swivel bar 20. The revolving bar base end revolving support shaft 12 and the revolving bar front end revolving support shaft 13 move away by linearly moving in the direction away from the assist bar front end revolving support shaft 14. Then, in the closed state (the state of FIG. 9), the slide protrusion 25 is farthest from the assist bar distal end pivot support shaft 14, and the swivel bar base end pivot support shaft 12 and the swivel bar tip pivot support shaft 13. The distance to is the longest. At this time, the entire door panel interlocking mechanism 10 is hidden behind the folding door 100, so that the appearance is good. In addition, regarding the operation | movement of the other site | part of the folding door 100 and the door panel interlocking mechanism 10, it is the same as the said 1st Embodiment. Also according to the present embodiment, the same effects as those of the first embodiment can be obtained.

[Third Embodiment]
12 to 15 show a third embodiment of the present invention. As shown in FIG. 12, the door panel interlocking mechanism 10 of the present embodiment includes a sub-swivel bar 31 on the extension of the swivel bar 30, and these are connected in a longitudinally movable manner. Different from one embodiment. Since other configurations are the same as those in the first embodiment, the same reference numerals are given to the same configurations, and duplicate descriptions are omitted.

  As shown in FIG. 13, the swivel bar 30 and the sub-swivel bar 31 are made of a strip-shaped sheet metal. The swivel bar 30 is pivotally supported by the swivel bar base end pivot support shaft 12 so that the base end of the swivel bar 30 is pivotable, and the distal end extends toward the pivot bar tip pivot support shaft 13. On the other hand, the sub swivel bar 31 is pivotally supported by a swivel bar distal end pivot support shaft 13 whose distal end is fixed to a substantially intermediate portion between the distal end and the base end of the second panel 102. The base end portion extends toward the turning bar base end rotation support shaft 12. Then, at the intermediate position between the turning bar base end turning support shaft 12 and the turning bar tip turning support shaft 13, the tip end portion of the turning bar 30 and the base end portion of the sub turning bar 31 are in the vertical direction (plate thickness direction). The revolving bar 30 and the sub-revolving bar 31 are connected to each other by a slide guide member 33 that receives the overlapping portion.

  The slide guide member 33 has a flat rectangular tube shape with both ends open. The distal end of the swivel bar 30 is inserted from one end opening 33A, and the base end of the sub swivel bar 31 is inserted from the other end opening 33B. Inserted (see FIG. 12). The slide guide member 33 allows the revolving bar 30 and the sub-revolving bar 31 to move linearly in the longitudinal direction and prohibits movement in the direction (short direction and plate thickness direction) perpendicular to the longitudinal direction. Yes. Since the turning bar 30 and the sub turning bar 31 rub against each other, the distance between the turning bar base end turning support shaft 12 and the turning bar tip turning support shaft 13 can be expanded and contracted. Note that the distal end portion of the swivel bar 30 and the base end portion of the sub swivel bar 31 are each prevented from coming off from the slide guide member 33. The slide guide member 33 in which the turning bar 30 and the sub turning bar 31 are connected so as to be linearly movable corresponds to the “linear motion rotating mechanism” of the present invention.

  According to the door panel interlocking mechanism 10 of the present embodiment, as shown in the changes to FIGS. 13 to 15, the folding door 100 changes toward the door opening posture (open state), and the first panel 101 and When the connecting portion with the second panel 102 is bent, the swivel bar 30 and the sub swivel bar 31 move in opposite directions so as to rub against each other in the vertical direction. That is, the swivel bar 30 moves linearly so that its tip end approaches the swivel bar tip turning support shaft 13, and the sub turn bar 31 has its base end approaching the turning bar base end turning support shaft 12. Directly move to. Thereby, the turning bar base end turning support shaft 12 and the turning bar tip turning support shaft 13 approach each other. And in the open state (state shown in FIG. 15) where the 1st panel 101 and the 2nd panel 102 were folded up on the suspension side edge part 111A, the turning bar base end rotation spindle 12 and the turning bar tip rotation The distance to the support shaft 13 is the shortest. At this time, almost the entire door panel interlocking mechanism 10 is hidden on the lower surface of the folding door 100, so that the appearance is good.

  On the other hand, when the folding door 100 changes toward the closing position, the swivel bar 30 moves linearly so that the tip portion thereof is separated from the swivel bar tip pivot support shaft 13, and the sub swivel bar 31 is The base end portion moves linearly so as to be separated from the turning bar base end rotation support shaft 12. Thereby, the turning bar base end turning support shaft 12 and the turning bar tip turning support shaft 13 move away from each other. In the closed state (the state shown in FIG. 13), the distance between the turning bar base end turning support shaft 12 and the turning bar tip turning support shaft 13 is the longest. Also at this time, since the entire door panel interlocking mechanism 10 is hidden behind the folding door 100, the appearance is good. In addition, about operation | movement of the other site | part in the folding door 100 and the door panel interlocking mechanism 10, it is the same as the said 1st Embodiment. Also according to the present embodiment, the same effects as those of the first embodiment can be obtained.

[Fourth Embodiment]
In the folding door 100 of the first to third embodiments, the space between the first panel 101 and the second panel 102 can be folded in both the front and rear directions of the opening 111 (both near and behind). However, the folding door 100 of the present embodiment can be folded only on one side in the front-rear direction of the opening 111. Hereinafter, the folding door 100 of this embodiment is demonstrated based on FIGS.

  In the folding door 100 of the present embodiment, the lateral width in a state where the first panel 101 and the second panel 102 are arranged in parallel to the opening surface is larger than the lateral width of the opening 111. Therefore, the folding door 100 is attached so that the distal end portion of the second panel 102 and the proximal end portion of the first panel 101 overlap the wall surface of the wall body 110 in the closed state (closed posture). (See FIGS. 16 and 18).

  A general hinge 40 having a structure in which a pair of blades (not shown) is rotatably connected by a core rod 40P between the distal end portion of the first panel 101 and the proximal end portion of the second panel 102. (Such as flat hinges and flag hinges). The core rod 40P of the hinge 40 corresponds to the “second panel base end rotation fulcrum” of the present invention, and as shown in FIG. 18, out of both surfaces of the first panel 101 and the second panel 102 in the plate thickness direction. In the closed state, it is arranged at a position protruding from the surface opposite to the wall 110.

  On the other hand, the first hinge 103 that is pivotably connected between the first panel 101 and the suspension side edge portion 111A is a so-called “carrying suspension” type, and the hinge pin 103P is a plate of the first panel 101. Of the both surfaces in the thickness direction, they are arranged at positions projecting from the wall 110 side (opposite side to the core rod 40P of the hinge 40) in the closed state. That is, the hinge pin 103P and the core rod 40P of the hinge 40 are arranged separately on the front and rear in the thickness direction of the first panel 101. In the present embodiment, the lower first hinge 103 is lifted and fixed from the floor surface (see FIGS. 16 and 17), but laid on the floor surface as in the first to third embodiments. And may be fixed.

  Here, the 4-joint rotation chain provided in the door panel interlocking mechanism 10 of the present embodiment can be represented by a skeleton model shown in FIG. As shown in the figure, the core bar 40P is arranged on one side in the plate thickness direction of the first panel 101, and the assist bar base end pivot shaft 11 is arranged at a position overlapping the first panel 101 in the vertical direction. Thus, the first rotation line segment L1 and the second rotation line segment L2 are always in a straight line between the closed state and the open state (between FIG. 21A and FIG. 21D). It is configured not to overlap. The state shown in FIG. 21A corresponds to the state shown in FIG. 18, the state shown in FIG. 21C corresponds to the state shown in FIG. 19, and the state shown in FIG. It corresponds to the state shown.

  With the above configuration, the first panel 101 and the second panel 102 can be bent only in the direction in which the surfaces on which the core rod 40P of the hinge 40 is disposed face each other, and are bent in the opposite directions. (See FIGS. 18 and 19).

  In addition, by disposing the hinge pin 103P, which is the pivot point of the first panel 101, between the wall body 110 in the closed state and the proximal end portion of the first panel 101, the proximal end of the first panel 101 in the closed state A relatively large gap 41 is formed between the wall portion and the wall surface of the wall body 110, and the gap 41 can prevent finger filling (finger pinching) between the first panel 101 and the wall body 110. it can. Further, in the closed state, a sufficient gap is formed between the distal end portion of the first panel 101 and the proximal end portion of the second panel 102, so that the finger between the first and second panels 101, 102 can be removed. Stuffing can also be prevented.

  Since other configurations are the same as those in the first embodiment, the same reference numerals are given to the same configurations, and duplicate descriptions are omitted. Also according to the present embodiment, the same effects as those of the first embodiment can be obtained.

  As a modification of the present embodiment, the folding door 100 is provided with a door panel interlocking mechanism 10 illustrated in the second embodiment (see FIG. 22) or a door panel interlocking mechanism 10 illustrated in the third embodiment ( 23 may be provided. Alternatively, either one or both of the first hinge 103 and the hinge 40 may be a spring hinge that urges the folding door 100 to a closed state by the urging force of a gravity hinge or a torsion coil spring. Further, a known door closer may be provided between the first panel 101 and the wall body 110 and combined with a biasing hinge such as a gravity hinge or a spring hinge.

  Furthermore, in the configuration of the present embodiment, the tip end of the swivel bar 15 slightly protrudes from the lower surface of the folding door 100 in the open state, but it swells from the side surface of the second panel 102 so as to overlap above the protruding portion. An extended guard member 70 may be provided (see FIG. 20). The guard member 70 reliably prevents a passerby from coming into contact with the protruding portion of the swivel bar 15 when passing through the opening 111. The guard member 70 preferably has a rounded shape in consideration of a case where a passerby contacts.

[Other Embodiments]
The present invention is not limited to the above-described embodiment. For example, the embodiments described below are also included in the technical scope of the present invention, and various other than the following are within the scope not departing from the gist. It can be changed and implemented.

  (1) Although the door panel interlocking mechanism 10 is provided only on the lower end surface of the folding door 100 in the first to fourth embodiments, it may be provided only on the upper end surface of the folding door 100. However, it may be provided on both the upper end surface and the lower end surface.

  (2) As a modification of the first to third embodiments, a gear hinge may be combined with the second hinge 106 that connects the distal end portion of the first panel 101 and the proximal end portion of the second panel 102. . Specifically, the first panel fixing gear 60 is fixed to the distal end portion of the first panel 101 so as not to rotate, and the base end portion of the second panel 102 is engaged with the outer peripheral surface of the first panel fixing gear 60. What is necessary is just to fix the 2nd panel fixed gear 61 which can roll the outer peripheral surface of the 1st panel fixed gear 60 by rotation of the 2nd panel 102 with respect to the 1st panel 101 (refer FIG. 24). In this way, the backlash between the first panel 101 and the second panel 102 can be reliably suppressed by the meshing of the first panel fixing gear 60 and the second panel fixing gear 61, and the folding door 100. The opening / closing operation can be performed more smoothly.

  (3) You may attach the doorwheel which can roll a floor surface to the lower end surface of the 1st panel 101 and / or the 2nd panel 102 in the said 1st-4th embodiment. In this way, the load applied to the first hinges 103 and 103 connecting the folding door 100 and the wall body 110 and the connecting portion between the first panel 101 and the second panel 102 is reduced. In addition, it is effective when the door pulley is attached to the front end portion of the second panel 102 and the front end portion of the first panel 101.

  (4) In the said 4th Embodiment, you may provide the buffer member for preventing those collision between the front-end | tip part of the 2nd panel 102 and the wall surface of the wall body 110 which can oppose in the obstruction | occlusion state.

  (5) As a modification of the fourth embodiment, the rotation center (hinge pin 103P) of the first panel 101 with respect to the suspension side edge 111A may be disposed inside the opening 111 as shown in FIG. . In this way, the position of the folding door 100 in the closed state can be brought close to the wall surface of the wall body 110, and the protrusion from the wall body 110 can be suppressed.

  (6) In the fourth embodiment, the tip of the swivel bar 15 protrudes to the side of the folding door 100 in the open state. However, as shown in FIG. By slightly inclining the longitudinal direction with respect to the longitudinal direction of the swivel bar 15, the protruding amount of the swivel bar 15 can be made smaller than this. Specifically, in the closed state, the long hole 16 moves away from the opening 111 (in other words, the second direction from the proximal end side to the distal end side of the swivel bar 15 (from the right side to the left side in FIG. 27). What is necessary is just to incline in the plate | board thickness direction of the panel 102 so that it may go to the side in which the core bar 40P is arrange | positioned from the side in which the hinge pin 103P is arrange | positioned.

  (7) In the fourth embodiment, the handles 104 and 104 are both provided at the distal end side of the second panel 102. However, the hinge pin 103P is disposed at the distal end portion of the first panel 101 in the closed state. The handle 104 may be provided on the side surface on the other side (the side close to the opening 111, the upper side in FIG. 18).

  (8) An actuator such as an electric motor that rotates the first panel 101 about the hinge pin 103P may be provided, and the folding door 100 may be automatically opened and closed by the power of the actuator.

The front view of the folding door which concerns on 1st Embodiment of this invention. Top view of the second hinge Side view of door panel interlock mechanism Bottom view of folding door in closed state Bottom view of folding door in half-open state Bottom view of folding door in open state Diagram showing the operation of the door panel interlock mechanism in a skeleton model Side view of door panel interlocking mechanism according to second embodiment Bottom view of folding door in closed state Bottom view of folding door in half-open state Bottom view of folding door in open state Side view of door panel interlocking mechanism according to third embodiment Bottom view of folding door in closed state Bottom view of folding door in half-open state Bottom view of folding door in open state Front view of the folding door according to the fourth embodiment Side view of door panel interlock mechanism Bottom view of folding door in closed state Bottom view of folding door in half-open state Bottom view of folding door in open state Diagram showing the operation of the door panel interlock mechanism in a skeleton model The figure which showed the modification of the door panel interlocking mechanism The figure which showed the modification of the door panel interlocking mechanism The top view of the 1st panel fixed gear and 2nd panel fixed gear which concern on other embodiment (2). Bottom view of door panel interlocking mechanism according to another embodiment (5) Bottom view of door panel interlocking mechanism according to another embodiment (6)

Explanation of symbols

10 Door panel interlocking mechanism 11 Assist bar base end rotation pivot (assist bar base end rotation fulcrum)
12 Rotating bar base end pivot support (swivel bar base pivot pivot)
13 Rotating bar tip turning pivot (swivel bar tip turning fulcrum, pin)
14 Assist bar tip turning pivot (assist bar tip turning fulcrum)
15, 20, 30 Rotating bar 16 Long hole 17 Assist bar 21, 31 Sub rotating bar 24 Slide long hole 25 Slide protrusion 33 Slide guide member 40P Core rod (second panel base end rotation fulcrum)
41 Clearance 50 Base plate (first panel fixing sheet metal)
51 Base plate (2nd panel fixing sheet metal)
60 1st panel fixed gear 61 2nd panel fixed gear 100 Folding door 101 1st panel 101P Hinge pin (2nd panel base end rotation fulcrum)
102 2nd panel 103P Hinge pin (1st panel base end rotation fulcrum)
110 Wall body 111 Opening 111A Hanging origin side edge (one side edge of opening)
L1 First turning line segment L2 Second turning line segment L3 Fixed line segment L4 Turning line segment

Claims (10)

A first panel (101) rotatably connected to one side edge (111A) of the opening (111) formed in the wall (110), and pivoted to the tip of the first panel (101) A folding door (100) having a second panel (102) that can be connected to each other is provided on an end surface of either the upper end or the lower end of the folding door (100), and the first and second panels (101, 102) are the wall bodies. When the first and second panels (101, 102) change from the closed state parallel to the opening surface of (110) to the open state where they overlap each other and rise from the opening surface, In the door panel interlocking mechanism (10) for interlocking the first and second panels (101, 102),
A first panel base end rotation fulcrum (103P) which is a rotation fulcrum with respect to the wall (110) of the first panel (101);
A second panel base end rotation fulcrum (40P, 101P) which is a rotation fulcrum of the second panel (102) with respect to the first panel (101);
It is provided on the wall (110) and is arranged at a position shifted toward the second panel (102) in the width direction of the opening (111) with respect to the first panel base end rotation fulcrum (103P). Assist bar base end rotation fulcrum (11),
The first panel base end pivoting in the width direction of the opening (111) with respect to the second panel base end pivoting fulcrum (40P, 101P) provided near the front end of the first panel (101). A turning bar base end turning fulcrum (12) arranged at a position shifted to the fulcrum (103P) side,
A swivel bar tip rotation fulcrum (13) disposed at a tip position or an intermediate position of the second panel (102);
A base end portion is rotatably connected to the turning bar base end turning fulcrum (12), and the turning bar base end turning fulcrum (12) and the turning bar tip turning fulcrum (13) are connected. A swivel bar (15,) extending along a straight line and having an assist bar tip turning fulcrum (14) at an intermediate position between the turning bar base end turning fulcrum (12) and the turning bar tip turning fulcrum (13). 20, 30),
An assist bar (17) coupled at both ends to the assist bar base end pivot fulcrum (11) and the assist bar tip pivot fulcrum (14);
The swivel bar (15, 20, 30) is provided between the tip of the swivel bar (15, 20, 30) and the second panel (102), and the swivel bar (15, 20, 30) is used as the swivel bar tip rotation fulcrum (13). A direct-acting rotation mechanism (13, 16, 24, 25, 33) that is coupled directly or indirectly so as to be pivotable and that is pivotably coupled in the longitudinal direction of the swivel bar (15, 20, 30); Prepared,
A fixed line segment (L3) connecting the first panel base end rotation fulcrum (103P) and the assist bar base end rotation fulcrum (11), and the first panel base end rotation fulcrum (103P). A first rotation line segment (L1) connecting between the turning bar base end rotation fulcrum (12), the assist bar base end rotation fulcrum (11), and the assist bar tip end rotation fulcrum (14). A second rotation line segment (L2) connecting between the two, a swivel line segment (L4) connecting between the swivel bar base end rotation fulcrum (12) and the assist bar tip rotation fulcrum (14), The length of each line segment (L1, L2, L3, L4) of the link configuration quadrilateral consisting of is configured to be constant and the angle between adjacent line segments changes in conjunction with each other,
The turning bar base end turning fulcrum (12) that is the intersection of the first turning line segment (L1) and the turning line segment (L4) is the second turning line segment (L2) and the turning line. It is located on the first panel base end pivot fulcrum (103P) side in the closed state with respect to the assist bar tip pivot fulcrum (14) that is the intersection with the minute (L4), and in the open state the first bar The door panel interlocking mechanism (10), characterized in that the door panel interlocking mechanism (10) is configured to move away from the one-panel base end rotation fulcrum (103P).   The swivel bar tip pivoting fulcrum (13) is pivotally connected to the swivel bar (20, 30) and extends on the extension of the swivel bar (21, 31). The swivel bar (20, 30) and the sub swivel bar (21, 31) are connected so as to be linearly movable at an intermediate position between the rotation fulcrum (12) and the swivel bar tip rotation fulcrum (13). The door panel interlocking mechanism (10) according to claim 1, wherein the linear motion rotating mechanism (24, 25, 33) is configured.   A long hole (16) is provided at the tip of the swivel bar (15), and a pin (13) provided at the swivel bar tip turning fulcrum (13) can be directly moved and turned in the long hole (16). The door panel interlocking mechanism (10) according to claim 1, wherein the linearly rotating mechanism (13, 16) is housed in a housing.   The door panel interlocking mechanism (10) according to any one of claims 1 to 3, wherein the width of the second panel (102) is larger than the width of the first panel (101). The first panel (101) and the second panel (102) can be rotated in only one direction from the closed state,
The first panel base end rotation fulcrum (103P) and the second panel base end rotation fulcrum (40P) are arranged separately in front and rear in the plate thickness direction of the first panel (101), and the assist A bar base end rotation fulcrum (11) is arranged at a position overlapping the first panel (101) in the vertical direction, and between the closed state and the open state, the first rotation line segment (L1) and The door panel interlocking mechanism (10) according to any one of claims 1 to 4, wherein the second rotation line segment (L2) is configured not to overlap with a straight line.   The first panel base end rotation fulcrum (103P) is disposed between the first panel (101) and the wall body (110) in the closed state, and the first panel (101) in the closed state. The door panel interlocking mechanism (10) according to claim 5, wherein a gap (41) for preventing finger filling is formed between the base end of the door and the wall (110). .   The first panel (101) and the second panel (102) can be rotated from the closed state in both directions of the back side and the near side of the opening (111), and the link configuration quadrilateral in the closed state. The door panel interlocking mechanism (10) according to any one of claims 1 to 4, wherein each of the line segments (L1, L2, L3, L4) is arranged on a straight line. A first panel fixing gear (60) fixed to the tip of the first panel (101) in a non-rotatable manner;
The second panel (102) is fixed to the base end of the second panel (102) in a non-rotatable manner, engages with the outer peripheral surface of the first panel fixing gear (60), and the second panel (102 with respect to the first panel (101). The door panel interlocking mechanism (10) according to claim 7, further comprising a second panel fixing gear (61) capable of rolling the outer peripheral surface of the first panel fixing gear (60) by rotation of the first panel fixing gear. ).   A hinge (103) pivotably connected between a base end of the first panel (101) and the wall (110), or a tip of the first panel (101) and the second panel ( The hinge (40) rotatably connected to the base end portion of 102) is a biasing hinge that biases the folding door (100) so as to be in the closed state. The door panel interlocking mechanism (10) according to any one of claims 1 to 8. A first panel fixing sheet metal (50) which is fixed to either the upper or lower end face of the first panel (101) and has the same planar shape as the planar shape when the front end portion of the first panel (101) is viewed from the vertical direction. )When,
A second panel fixing sheet metal (fixed to one of the upper and lower end faces of the second panel (102) and having the same planar shape as the planar end when the base end of the second panel (102) is viewed from above and below. 51)
A pivot bar base end pivot shaft (12) as the pivot bar base pivot pivot (12) is provided at a predetermined position of the first panel fixture sheet metal (50), and the second panel fixture sheet metal (51). The door panel interlocking according to any one of claims 1 to 9, wherein a pivot bar tip pivoting support shaft (13) is provided as a pivot bar tip pivoting fulcrum (13) at a predetermined position. Mechanism (10).