Inward-opening door device

Abstract

In a configuration where an inward-opening door body 4 is installed at the entrance E of toilet booth 1 and can be opened to the outside in an emergency, measures are taken to prevent the gap S between the edge members 5 and 6 on the door edge side from narrowing due to installation errors of the door body 4, making it impossible to operate the door body 4 to the outside. [Solution] When the lower hinge 22 of the door body 4 is a long type with an extension 22e provided on the vertical piece 22a, the spacer 28 provided between the vertical piece 22a and the door-side edge member 24 is made to have an extension 28a that extends to the extension 22e, and the spacer 28 is configured to be removed when the door body 4 cannot be operated to the outside.

Description

Technical Field

[0001] The present invention relates to the technical field of an inward-opening door device installed at the entrance of a room such as a toilet booth.

Background Art

[0002] Generally, when a door body (door, door leaf) is provided at the entrance of a room (small room) such as a toilet booth or a bathroom booth, it is an inward-opening type that opens the door body to the indoor side. When the door body is opened, consideration is given to prevent problems such as the opened door body hitting a person on the outdoor side. However, when such an inward-opening door device is installed, there are cases where a person inside the room may collapse near the entrance due to health problems. In such a case, it is assumed that the collapsed person becomes an obstacle and prevents the door body from being opened to the indoor side, causing an obstacle to emergency response. Therefore, as a countermeasure in such a case, an outdoor opening restriction means is provided between the door body and the door end side panel body to normally restrict the opening of the door body to the outdoor side, but to release the restriction in an emergency. By doing so, a configuration is known in which the door body can be opened to the outdoor side in an emergency (see, for example, Patent Document 1). By the way, for such a door body, as a lower hinge provided to pivotally support the lower edge portion to the door end side panel body, a so-called gravity hinge having an L-shape provided with a vertical piece portion fastened to the entrance side edge portion of the door end side panel body via a screw and a lower piece portion having a hinge shaft protruding to pivotally support the lower edge portion of the door body is known. In such a door body, if there is a gap between the lower edge portion of the door body and the floor surface, there is a risk of secretly taking pictures or peeping through the gap. Therefore, when the lower edge portion of the door body is made close to the floor surface to avoid such a situation, the lower hinge is proposed to be a long object (long type) provided with an extension portion extending to a skirting portion lower than the lower edge portion of the door end side panel body instead of a general-purpose type up to the lower edge portion of the door end side panel body (see, for example, Patent Document 2).

Prior Art Documents

[0003] [Patent Document 1] Patent No. 6802007 [Patent Document 2] Japanese Patent Publication No. 2020-122346 [Overview of the project] [Problems that the invention aims to solve]

[0004] Incidentally, when installing inward-opening door devices on-site, there are inevitably installation errors, and these errors can cause the gap (clearance) between the door body and the door-end panel to narrow, potentially preventing the outdoor opening restriction mechanism from functioning properly. To address this, an adjustment spacer was provided between the vertical piece of the lower hinge and the edge of the door-end panel. If the gap was too narrow, the spacer could be removed to allow the outdoor opening restriction mechanism to function. However, even if the door body is supported so that it can be opened and closed using a long-type lower hinge with an extension on the vertical piece as described above, as shown in the reference example in Figure 18, the adjustment spacer 28 remained short, corresponding to a general-purpose type vertical piece that only extends to the lower edge of the door-side panel body 3. As a result, a gap U equivalent to the spacer 28 exists between the extension 22e of the vertical piece 22a and the baseboard closing member 26b. This causes the lower hinge 22 to be subjected to a load from the load of the door body 4 on the extension 22e, resulting in bending deformation of the extension 22e and causing the door body 4 to tilt. The challenge is to solve these problems. [Means for solving the problem]

[0005] The present invention was created in view of the above circumstances and with the aim of solving these problems, and the invention of claim 1 is an inward-opening door device comprising a door-side panel body and a door-end panel body that separate the interior and exterior, and a door body pivotally supported on the door-end panel body via upper and lower hinges so as to be able to open and close and swing inside and outside, wherein an outside-opening restricting means is provided between the door body and the door-side panel body that normally restricts the opening of the door body to the outside but releases the restriction in an emergency, wherein both panel bodies are arranged on the floor surface side via a floor rail, and the entrance-side edge portion is flush with the entrance-side edge portion of the door-end panel body The inward-opening door device is characterized by being supported by a baseboard set to open in a certain way, and having an L-shape, comprising a vertical piece fastened to the door-side edge of the door-end panel body via screws, and a lower piece from which a hinge shaft that pivotally supports the lower edge of the door body is provided, wherein the vertical piece is made up of a long piece with an extension that extends downward beyond the lower edge of the door-end panel body to the door-side edge of the baseboard, and a spacer is detachably provided between the vertical piece and the door-side edge of the door-end panel body, and the spacer has an extension that extends to the extension of the vertical piece. The invention of claim 2 is an inward-opening door device according to claim 1, characterized in that the outdoor-side opening restricting means comprises a door body side edge member comprising a fixed-side edge half fixed to the door-side edge of the door body, a movable-side edge half provided to extend and retract from the fixed-side edge half, and a biasing means for biasing the movable-side edge half toward the protruding side, and a panel body side edge member provided at the entrance-side edge of the door-side panel body, which does not contact the movable-side edge half when the door body is opened to the interior, but contacts the movable-side edge half when it is opened to the exterior to restrict the door body from opening to the exterior, and the restriction on the door body opening to the exterior is released when the movable-side edge half retracts against the biasing force of the biasing means in response to the pressing force of forcibly opening the door body, which is in a restricted state with the contact portion in contact with the movable-side edge half, to the exterior. The invention of claim 3 is an inward-opening door device according to claim 1, characterized in that the doorway-side edge of the baseboard is closed by a baseboard sealing member, and the extended portion of the spacer is fastened to the baseboard sealing member via screws. The invention of claim 4 is an inward-opening door device according to claim 1, characterized in that the doorway-side edge of the baseboard is closed by a baseboard closing member, the doorway-side edge of the floor rail is closed by a floor rail closing member, the baseboard closing member and the floor rail closing member are stacked with the baseboard closing member positioned on the doorway side, and the extended portion of the spacer is fastened to the stacked baseboard and floor rail closing members via screws. The invention of claim 5 is an inward-opening door device according to claim 1, characterized in that the doorway-side edge of the baseboard is closed by a baseboard closing member, the doorway-side edge of the floor rail is closed by a floor rail closing member, the baseboard closing member and the floor rail closing member are stacked with the baseboard closing member positioned on the doorway side, and the extension of the spacer is fastened together with the extension of the hinge to the doorway-side edges of the stacked baseboard and floor rail via screws. The invention of claim 6 is an inward-opening door device according to claim 1, characterized in that the extension portion of the spacer is set to a length that extends to just before reaching the bent corner portion between the extension portion of the vertical piece and the lower piece. [Effects of the Invention]

[0006] By adopting the invention of claim 1, an inward-opening door device that normally opens the door body to the interior is provided with an outward opening restriction means that normally restricts the opening of the door body to the exterior, but releases this restriction in an emergency, in which case, due to an error during installation, the gap between the door-side panel and the door-side edge of the door body becomes narrow, making it difficult to close the door body that has been opened to the exterior, and by removing a spacer with an extension that extends to the extension of the vertical piece between the vertical piece and the door-side edge of the door-end panel, the gap between the door-side panel and the door-side edge of the door body can be widened, thereby easily avoiding the difficulty in closing the door body that has been opened to the exterior and improving convenience. By adopting the invention of claim 2, the outdoor opening restriction means is composed of a door body side edge member comprising a fixed edge half fixed to the door front edge of the door body, a movable edge half provided to extend and retract from the fixed edge half, and a biasing means for biasing the movable edge half toward the protruding side, and a panel body side edge member provided to the door front edge of the door front panel body, which does not contact the movable edge half when the door body is opened toward the interior, but contacts the movable edge half when it is opened toward the outdoor side to restrict the door body from opening toward the outdoor side, thereby making the outdoor opening restriction means a simple structure. By adopting the invention of claim 3, the spacer's extension portion is fastened to a baseboard sealing member provided on the baseboard, thereby reinforcing the installation of the spacer. By adopting the invention of claim 4, the spacer is fastened to the overlapping baseboard and floor rail sealing members, thereby reinforcing the installation of the spacer. By adopting the invention of claim 5, the spacer can be fastened to a baseboard and floor rail sealing member, the extension portion of which is laminated together with the hinge extension portion, thereby reinforcing the attachment of the spacer. By adopting the invention of claim 6, the extension portion of the spacer is set to a length that extends to just before reaching the bent corner portion between the extension portion of the vertical piece and the lower piece. As a result, even if a convex portion is formed at the bent corner portion due to plastic deformation during bending, the spacer can be attached without any problems. [Brief explanation of the drawing]

[0007] [Figure 1] (A), (B), and (C) are front, top, and side views of the toilet booth. [Figure 2] This is a horizontal cross-sectional view of the main part of the toilet booth. [Figure 3] This is a horizontal cross-sectional view of the door frame, specifically the leading edge portion. [Figure 4] (A)(B)(C)(D) are side views showing the base end of the leaf spring on the fixed edge half of the door body with dashed lines, side views showing the screw pocket area with dashed lines, a plan view, and a front cross section view. [Figure 5] (A), (B), and (C) are side, front, and top views of the fixed edge half. [Figure 6] (A), (B), and (C) are side, front, and top views of the movable edge half. [Figure 7] (A), (B), and (C) are side views, rear views, and top views of the edge body portion of the panel body side edge member. [Figure 8] (A), (B), and (C) are side views, front views, and top views of the edge base end of the panel body side edge member. [Figure 9] (A), (B), and (C) are side, front, and top views of a leaf spring. [Figure 10] (A) to (D) are explanatory diagrams showing the first half of the opening process when the door body is opened to the outside. [Figure 11] (A) to (D) are explanatory diagrams showing the latter half of the opening process when the door body is opened to the outside. [Figure 12] This is a front view of the vertical cross-section of the lower hinge area of ​​the door body. [Figure 13] This is a cross-sectional and plan view of the lower hinge area of ​​the door body. [Figure 14] It is a side view of the lower hinge part of the door body. [Figure 15] (A) and (B) are cross-sectional plan views of a door body part showing a state where the gap between the movable side edge half and the panel body side edge member is narrowed due to installation error, and a cross-sectional plan view of the door tip side part of the door body showing a state where the door body cannot be opened to the outdoor side. (C) is a cross-sectional plan view of the door tip side part of the door body showing a state where the door body cannot be closed to the indoor side. [Figure 16] (A) and (B) are cross-sectional plan views of a door body part showing a state where the gap between the movable side edge half and the panel body side edge member is widened by removing the spacer, and a front view of the cross-section of the lower hinge part. [Figure 17] (A), (B), and (C) are front views of the longitudinal cross-sections of the lower hinge part of the door body of the second, third, and fourth embodiments. [Figure 18] It is a front view of the longitudinal cross-section of the lower hinge part of the door body showing a reference example.

Embodiments for Carrying Out the Invention

[0008] Hereinafter, embodiments of the present invention will be described based on the drawings. In the drawings, 1 is a toilet booth provided indoors. The toilet booth 1 is partitioned by the front and rear door tip side, door butt side panel bodies 2, 3, the front and rear depth panel bodies 15, and the wall surface W on the building body side. In order to open and close the entrance E formed between the door tip side and door butt side panel bodies 2, 3, it is configured with an in-swing door body 4 whose door butt side is pivotally supported via a hinge 22 described later so as to be swingable in the front-rear direction, etc., all of which are the same as in the prior art. And a door body side edge member 5 is attached to the door tip side edge part of the door body 4, and a panel body side edge member 6 is attached to the front edge part of the door tip side panel body 2 facing the door body 4, which constitutes the outdoor side opening restriction means of the present invention. Incidentally, since the edge members 5 and 6 that constitute the outdoor opening restriction means only need to have relative structures, it goes without saying that the present invention can also be implemented in the reverse configuration of this embodiment, where an edge member 5 with the same structure as the door body side is attached to the door edge side panel body 2, and an edge member 6 with the same structure as the panel body side is attached to the door body 4.

[0009] The door body side edge member 5 comprises a fixed side edge half 7 attached to the leading edge 4a of the door body 4, a movable side edge half 8 provided to be movable in the left-right direction relative to the fixed side edge half 7, and a leaf spring 9 which is an elastic device that biases the movable side edge half 8 toward the door side panel body 2. The fixed-side edge half 7 has a projection piece 7a that abuts against (opposes) the door-side end face 4a of the door body 4, and a pair of front and rear (outside-inside) projection pieces 7b that protrude toward the door-side panel body 2 from both the front and rear edges of the projection piece 7a, and a locking receiving piece 7c that is bent inward in the front-rear direction from the tip edge of the projection piece 7b. Furthermore, a pair of front and rear base end restricting portions 7d are formed on the door edge side portion of the projecting portion 7a, which are located inward in the front-rear direction from the protruding portion 7c, thereby restricting the misalignment of the base end portion 9a of the leaf spring 9.

[0010] In contrast, the movable edge half 8 is composed of a pair of front and rear locking pieces 8a that abut against the locking receiving piece 7c from the door-side, front and rear guide pieces 8b that extend from the front-rear inner ends of the locking pieces 8a toward the door-side panel body 2, in close proximity to the locking receiving piece 7c in the front-rear direction, to guide the lateral movement of the movable edge half 8 relative to the fixed edge half 7, and a tip side portion 8c that extends inward in the front-rear direction to connect the tip edges of the front and rear guide pieces 8b, wherein the tip side portion 8c is configured to have an arcuate surface in plan view, with the central part in the front-rear direction bulging toward the door-side panel body 2. Furthermore, a pair of front and rear screw pockets 8d are formed on the back surface (back surface, side surface of the fixed edge half 7) of the front end side portion 8c, protruding from the back surface. These front and rear screw pockets 8d are composed of a pair of front and rear arc-shaped pocket pieces 8da and 8db. The pocket piece 8da on the outside in the front-rear direction protrudes longer toward the fixed edge half 7 than the pocket piece 8db on the inside.

[0011] On the other hand, the leaf spring 9 constituting the spring mechanism of this embodiment is fixed to the door-side vertical frame member 4c of the door body 4 by screws 9b that are screwed in from the base end 9a to pass through the projection piece 7a, with the base end 9a fitted between the front and rear base end restricting portions 7d to restrict positional displacement in the front-rear direction, and is fastened together with the fixed-side edge half 7. The leaf spring 9 has a spring body portion 9c that extends inclined from one end edge in the vertical direction of the base end 9a, and the front and rear front-rear outer pocket pieces 8da contact the tip portion 9d, which is formed by bending in the vertical direction from the tip edge of the spring body portion 9c, in a straight line in the vertical direction. With this configuration, when the door body 4 is opened and closed normally towards the interior, the movable edge half 8 is subjected to the biasing force (elastic pressure) of the leaf spring 9, resulting in the locking piece 8a being in contact with the locking receiving piece 7c, which is the normal position. Incidentally, in this embodiment, the fixed edge half 7, the movable edge half 8, and the leaf spring 9 are all constructed in a line-symmetrical manner with respect to the door centerline X of the door body 4 as the axis of symmetry.

[0012] On the other hand, the panel body side edge member 6 is attached to the door end edge of the door front side panel body 2 in a state facing the door body side edge member 5, and is configured to have an edge body portion 6a that faces the front end side portion 8c of the movable side edge half portion 8 with a gap (gap, void) S between them when the door body 4 is closed, and an edge base portion 6b that is fastened to the vertical frame member 2c of the door front side panel body 2 via screws 6c to the front edge portion 2a of the door front side panel body 2. Furthermore, the end face portion of the edge body portion 6a on the door body 4 side has a plane perpendicular to the door centerline X in the indoor half 6aa, while the outdoor half 6ab curves toward the door body 4 as it faces outdoors, forming an arc surface that substantially follows the arc surface of the tip side portion 8c. The edge body portion 6a is assembled and formed when the locking pieces 6ac and 6ad that protrude toward the door-side panel body 2 on the edge body portion 6a engage with the locking receiving pieces 6ba and 6bb provided on the edge base end portion 6b. Furthermore, the front and rear edges of the edge body 6a are provided with interior and exterior surface portions 6d and 6e, respectively, which are flush with the panel surface 2b of the door-side panel body 2. However, the corner portion 6ea between the exterior side portion 6e and the exterior half portion 6ab has an acute-angled edge.

[0013] The exterior edge of the panel body side edge member 6, configured in this way, has an exterior side portion 6e formed on its exterior end edge to close the gap S and prevent visibility between the inside and outside. The corner portion 6ea at the leading edge of the exterior side portion 6e is configured to face the corner portion 8ca of the exterior guide piece 8b of the movable side edge half leading edge portion 8c in the front-rear direction, with a gap existing between them when the door body 4 is closed. When the door body 4 is closed, the corner portion 6ea and the locking receiving piece 7c are configured to be spaced apart by a width Z in the left-right direction.

[0014] In the door device configured in this way, the process of opening the door body 4 to the outside will be explained in detail with reference to Figures 10 and 11. First, as shown in Figure 10(A), when the door body 4 is opened outwards from a closed position, the corner portion 6ea of ​​the panel body side edge member 6 comes into contact with the corner portion 8ca of the side tip 8c of the movable edge half (see Figure 10(B)). If the door body 4 is opened further outwards from this position, the side tip 8c moves outwards relative to the corner portion 6ea.

[0015] As the door body 4 is further forcibly opened outwards, the movable edge half 8 goes through the following steps: the locking piece 8a on the outside separates from the locking receiving piece 7c (see Figure 10(C)); the locking piece 8a on the outside separates further from the locking receiving piece 7c, and the locking piece 8a on the inside separates from the locking receiving piece 7c (see Figure 10(D)); and when the corner portion 6ea reaches the center position in the front-rear direction of the front end side portion 8c, it transforms into a state where the separation between the locking piece 8a and the locking receiving piece 7c on the inside and outside reaches an equal point (peak) (see Figure 11(A)). When the door body 4 is opened further to the outside from this state, the front side portion 8c moves outward relative to the corner portion 6ea, and the movable edge half portion 8 goes through the following steps: the indoor locking piece portion 8a moves further away from the locking receiving piece portion 7c, and the distance between the outdoor locking piece portion 8a and the locking receiving piece portion 7c decreases (see Figure 11(B)); the distance between the indoor locking piece portion 8a and the locking receiving piece portion 7c increases, and the outdoor locking piece portion 8a comes into contact with the locking receiving piece (see Figure 11(C)); and the door body 4 is opened to the outside beyond the door edge side panel body 2 (see Figure 11(D)). In this way, the door body 4 is configured to be opened to the outside in an emergency.

[0016] Incidentally, the means for restricting the opening of the door to the outside implemented in this embodiment restricts the opening of the door body 4 to the outside by the biasing force of the leaf spring 9. Therefore, there is a risk that the door body 4 may be opened to the outside in normal circumstances with a force that exceeds the biasing force of the leaf spring 9. To avoid this, for example, a stopper 13 may be attached to the door body 4 so as to abut against the upper door frame 14 and prevent the door body 4 from being opened to the outside, thereby restricting the opening of the door body 4 to the outside in normal circumstances. Of course, in the event of an emergency, the stopper may be released to allow the door body 4 to be opened to the outside in an emergency.

[0017] Furthermore, the inward-opening door body implemented in this embodiment incorporates the following invention. First, the inward-opening door device comprises left and right door-side and door-end panel bodies that separate the interior and exterior, and an inward-opening door body that opens and closes the entrance formed between the door-side and door-end panel bodies by opening inwards. One of the edge members, one of which is provided on the door body side and the panel body side, which are opposite to each other's edges, has a bulging surface on the front-to-back central side of the tip of the edge member, while the other edge member has an extension on the exterior edge that extends toward the one edge member to close the gap between the two edge members. The invention of an inward-opening door device is characterized by comprising a movable edge half that can move freely in the left-right direction, and a spring interposed between the fixed side and the movable edge half to bias the movable edge half, and by being configured so that the door body can be opened to the outside when the movable edge half receives contact with an extension and retracts against the spring towards the fixed edge half, and by being configured so that the door body can be opened to the outside, the movable edge half receives contact with an extension and retracts towards the fixed edge half side, and by being provided between the movable edge half and the spring, a position adjustment means is provided to set the position of the tip of the spring that interferes with the movable edge member to a position closer to the fixed edge half than the position where the extension contacts the movable edge half.

[0018] In this way, an inward-opening door device is constructed between the door body 4 and the front panel body 2, which normally restricts the door body from opening outwards but releases this restriction in emergencies. However, due to installation errors that occur when such a door device is installed on site, the gap S between the movable edge half 8 and the panel body side edge member 6 may narrow when the door body 4 is closed. In this case, there is no problem in opening the door body 4 inwards, but when closing the door body 4 that has been opened outwards, for example, during the operation, as shown in Figure 15(B), the locking piece 8a comes into contact with the corner portion 7f between the protruding piece 7a and the projecting piece 7b on the outside, preventing the locking piece 8a from retracting any further, which may prevent the door body 4 from being opened outwards. Furthermore, even if the door can be opened to the outside, when the door body that has been opened to the outside is closed, as shown in Figure 15(C), the locking piece 8a on the indoor side comes into contact with the corner portion 7f of the protruding piece 7a and the projecting piece 7b, preventing the locking piece 8a from retracting any further, which may prevent the door body 4 that has been opened to the outside from being closed.

[0019] Therefore, the following considerations have been made in this embodiment. First, the door body 4 is pivotally supported on the door-side panel body 3 via upper and lower hinges 21 and 22, both of which use gravity hinges, so that it can be opened and closed in the inward and outward directions. The lower hinge 22 has an L-shape with a vertical piece 22a and a lower piece 22b that is bent from the lower end edge of the vertical piece 22a, and the lower piece 22b is equipped with a hinge shaft 22c that fits into the lower end edge of the door body 4 and pivotally supports it so that it can swing. The lower hinge 22 is fastened to the door-side panel body 3 via screws 22d with the vertical piece 22a fitted into a fitting recess 24a provided on the door-side edge member 24 provided on the door-side panel 3.

[0020] On the other hand, the leading edge and trailing edge panels 2 and 3 are both supported at their lower edges by a baseboard 26 positioned on the floor surface F via a floor rail 25. The floor rail 25 is bent in shape and attached to the floor surface F via screws 25a. In contrast, the baseboard 26 is bent in shape and fitted onto the floor rail 25. The height of the baseboard is adjusted by a general-purpose height adjuster (not shown) interposed between the bottom surface 25b of the floor rail 25 and the top surface 26a of the baseboard 26, and the lower edges of the leading edge and trailing edge panels 2 and 3 are supported by the top surface 26a of the baseboard.

[0021] In this case, the floor rail sealing member 25c, which seals the edge of the floor rail 25 on the entrance E side, and the baseboard sealing member 26b, which seals the edge of the baseboard 26 on the entrance E side, are stacked (overlapping) on ​​the left and right sides with the floor rail sealing member 25c on the inside, while the baseboard sealing member 26b and the bottom surface 24aa of the fitting recess 24a provided in the door-end side edge member 24 are set to be flush. As mentioned above, the lower edge of the door body 4 is attached to the door-side panel body 3 via the lower hinge 22. In this case, the vertical piece 22a of the lower hinge 22 is a long piece with an extension 22e that extends below the lower edge of the door-side panel member 3 and reaches near the floor surface F. The lower piece 22b is formed by bending from the corner 22f at the lower end of the extension 22e toward the doorway E in the horizontal direction. In this case, the corner 22f is set to be located below the lower edge of the baseboard 26 (depending on the height adjustment of the height adjustment device, it may be at the same level as or above the lower edge of the baseboard 26) and is configured to face the floor rail closing member 25c of the floor rail 25.

[0022] In this case, the standard mounting specification for the lower hinge 22 to the door-side panel member 3 is such that a spacer 28 is interposed between the vertical piece 22a and the bottom surface 24aa of the fitting groove 24a. Incidentally, this spacer 28 is also provided in the same manner on the upper hinge 21. Moreover, in this case, the spacer 28 is a long piece with an extension portion 28a that extends not only to the lower edge of the door-side panel member 3, but also to the extension portion 22e provided on the vertical piece portion 22a. However, in this embodiment, the lower edge of the extension portion 28a is only long enough to reach the lower corner portion 22f, so as to prevent it from being affected by bending distortion that may occur when the corner portion 22f is bent.

[0023] Furthermore, if the door body 4 is attached to the door-end panel body 3 with the spacer 28 in place, and the gap between the door body-side edge member 5 and the panel body-side edge member 6 is narrower than the set dimension due to the installation error, and as mentioned above, when the door body 4 is opened to the outside, the amount of intrusion of the movable-side edge half 8 is insufficient, making it impossible to open the door body 4 to the outside, it is conceivable that conversely, the door body 4 that has been opened to the outside may become impossible to close. In such cases, the door body 4 is temporarily removed from the door-end panel body 3, and as shown in Figure 15, the vertical piece 22a is attached to the door-end panel body 3 with the spacer 28 removed. This allows the gap between the door body-side edge member 5 and the panel body-side edge member 6 to be widened by the thickness of the spacer 28, thereby enabling the door body 4 to be opened to the outside.

[0024] In this embodiment configured as described, in an inward-opening door device 1 that normally opens the door body 4 to the interior, a door body side edge member 5 and a panel body side edge member 6 are provided at the opposing edges of the door body 4 and the door-side panel body 2, and the door body side edge member 5 is configured to include a fixed side edge half 7 and a movable side edge half 8 that are attached and fixed to the door-side edge of the door body 4, and the tip side surface 8c of the movable side edge half 8 is a bulging surface that bulges towards the center in the front-rear direction. On the other hand, the panel body side edge member 6 is provided with an extension 6e on the outdoor side edge to close the gap S between the two edge members 5 and 6, and a leaf spring 9 is provided between the fixed side and the movable side edge halves 7 and 8 to bias the movable side edge half 8, and when the door body 4 is opened to the outside, the movable side edge half 8 receives contact with the extension 6e and retracts towards the fixed side edge half 7 against the biasing force of the leaf spring 9, thereby enabling the door body 4 to be opened to the outside.

[0025] In a toilet booth 1 configured in this way, errors during the installation of the door device can cause the gap S between the door body side edge member 5 and the panel body side edge member 6 to narrow, resulting in a setup that prevents the door body 4 from being opened to the outside in an emergency. In such cases, as mentioned above, the gap S can be widened (to an appropriate size) by removing the long spacer 28, which is interposed between the long vertical piece 22a, into which the extension 22e of the lower hinge 22 is integrated, and the door-end panel body 3, and the extension 28a, which is integrated. This makes it possible to easily adjust the door to prevent the movable edge half 8 from getting stuck to the fixed edge half 7 and preventing opening and closing operations when an emergency opening and closing operation is performed on the outside, without having to re-install the door.

[0026] Moreover, in this case, if the installation is correct and it is acceptable to leave the spacer 28 in place (without removing it), the space between the baseboard-side closing member 26b of the baseboard 26 and the extension 22e of the vertical piece 22a is closed by the extension 28a of the spacer 28. As a result, the load of the door body 4 is received on the baseboard 26 side via the extension 28a, and as shown in the reference example in Figure 18 above, the extension 22e of the vertical piece 22a does not bend because there is no extension 28a on the spacer 28, creating a gap U. Furthermore, in this embodiment, since the baseboard-side closing member 26b of the baseboard 26 is stacked (overlapped) with the floor rail 25-side closing member 25c of the floor rail 25, the load of the door body 4 is supported not only by the baseboard 26 but also by the floor rail 25, which contributes to increased strength.

[0027] It should be noted that the present invention is not limited to the embodiments described above, and can also be implemented as shown in the second to fourth embodiments in Figure 16. First, in the second and third embodiments shown in Figures 16(A) and (B), the extension portion 28a of the spacer 28 is fixed to the baseboard cover member 26b via screws 28b, and fixed to the stacked baseboard cover member 26b and floor rail cover member 25c via screws 28b. Furthermore, in the fourth embodiment shown in Figure 16(C), the extension portion 28a of the spacer 28 is fixed together with the extension portion 22e of the lower hinge 22 via screws 28c to the stacked baseboard cover member 26b and floor rail cover member 25c. In this way, not only is the mounting of the spacer 28 reinforced, but the presence of the extension portion 22e also provides a sway-preventing effect in the front-to-back direction of the long vertical piece portion 22a. [Industrial applicability]

[0028] This invention can be used as an inward-opening door device installed at the entrance to a club room, such as a toilet booth. [Explanation of symbols]

[0029] 1 Toilet booth 2. Front-side panel 2a Door-end edge 3. Door-end side panel 4-door body 4a Door edge side end face 5. Door body side edge member 6 Panel body side edge member 7 Fixed edge half 8. Movable side edge half 9. Leaf spring 21 Upper hinge 22 Lower hinge 22a Vertical piece 22b Lower piece 22c hinge axis 22e extension 22f Corner Section 24 Door-end edge member 24a Fitting recess 25 Floor rails 25c Floor rail sealing component 26 Baseboard 26b Baseboard sealing material 28 Spacers 28a Extension E Entrance / Exit S Gap

Claims

1. It comprises door-side and door-end panel bodies that separate the interior and exterior, and a door body that is pivotally supported on the door-end panel body via upper and lower hinges so as to be able to open and close freely inside and outside. In an inward-opening door device, a means for restricting the opening of the door to the outside under normal circumstances, but releasing the restriction in an emergency, is provided between the door body and the door edge panel body. Both of the aforementioned panel bodies are positioned on the floor surface via floor rails and are supported by a baseboard set so that the doorway-side edge is flush with the doorway-side edge of the door-end panel body. The lower hinge has an L-shape, comprising a vertical piece fastened to the door-side edge of the door frame via screws, and a lower piece from which a hinge shaft protrudes, pivotally supporting the lower edge of the door frame. The aforementioned vertical piece is made up of a long piece with an extended portion that extends downwards from the lower edge of the door-side panel body to the door-side edge of the baseboard. A spacer is detachably provided between the vertical piece and the door-side edge of the door-end panel body. The spacer is characterized by having an extended portion that extends to the extended portion of the vertical piece, and is an inward-opening door device.

2. The means of restricting the opening of the outdoor side is, A door body side edge member comprising a fixed edge half fixed to the door edge on the door side, a movable edge half provided to extend and retract from the fixed edge half, and a biasing means for biasing the movable edge half toward the protruding side, It is composed of a panel-side edge member provided on the door-side edge of the door-side panel body, which has a contact portion that does not contact the movable-side edge half when the door body opens inward, but contacts the movable-side edge half when the door body opens outward to restrict the door body from opening outward, The inward-opening door device according to claim 1, characterized in that the restriction on the door body to the outside is released when the movable edge half retracts against the biasing force of the biasing means in response to the pressing force of forcibly opening the door body, which is in a restricted state with the contact portion in contact with the movable edge half, to the outside.

3. The doorway-side edge of the baseboard is covered with a baseboard cover member. The inward-opening door device according to claim 1, characterized in that the extension portion of the spacer is fastened to the baseboard sealing member via screws.

4. The doorway-side edge of the baseboard is sealed with a baseboard sealing member, and the doorway-side edge of the floor rail is sealed with a floor rail sealing member. The baseboard cover member and the floor rail cover member are stacked with the baseboard cover member positioned on the doorway side. The inward-opening door device according to claim 1, characterized in that the extension portion of the spacer is fastened to the stacked baseboard and floor rail sealing members via screws.

5. The doorway-side edge of the baseboard is sealed with a baseboard sealing member, and the doorway-side edge of the floor rail is sealed with a floor rail sealing member. The baseboard cover member and the floor rail cover member are stacked with the baseboard cover member positioned on the doorway side. The inward-opening door device according to claim 1, characterized in that the extension portion of the spacer is fastened together with the extension portion of the hinge to the stacked baseboard and floor rail sealing members via screws.

6. The inward-opening door device according to claim 1, characterized in that the extension portion of the spacer is set to a length that extends to just before reaching the bent corner portion between the extension portion of the vertical piece and the lower piece.

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