Inward-opening door device and method of opening the door device to the exterior side

Abstract

To provide an inward-opening door device capable of allowing an inward-opening door body 4 provided at the entrance E of a toilet booth 1 to reliably move away in a manner that, when opening the door to the outside in an emergency, by receiving a load when a movable side edge half 8 provided on the door body side edge member 5 that abuts on the extension part 6e of the panel body side edge member 6.SOLUTION: The position of the tip 9d of a leaf spring 9 that elastically supports the movable side edge half 8 is adjusted so that the tip of a screw pocket portion 8d is displaced and adjusted toward a fixed side edge half 7 from the position where an extension portion 6e abutting on a tip side surface portion 8c of the movable side edge half 8 as position adjusting means. The leaf spring 9 is contracted in the direction in which the movable edge member 8 is displaced by the load when the extension portion 6e comes into contact.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to the technical field of an inward-opening door device that is attached to the entrance of a room such as a toilet booth, and a method for opening the door device to the outside of the room. [Background technology]

[0002] Generally, when a door body (door frame, door panel) is installed at the entrance of a room (small room) such as a toilet booth or bathroom booth, the door body is an inward-opening type that opens toward the interior of the room, and consideration is given to preventing the door body from hitting people outside the room when it is opened. In such an inward-opening door device, edge members are attached to the leading edge of the door body and to the leading edge of the panel body opposite the leading edge, respectively, and these two edge members are configured such that, for example, the door body edge member has a bulging surface (arcuate surface) at the leading end side portion that bulges toward the center in the front-to-rear direction, while the panel body edge member has an extension formed in the outside portion to close the gap between the two edge members and conceal the view into the room. In such door systems, if a person inside the room falls near the entrance due to health issues or other reasons, the fallen person may become an obstacle, preventing the door body from opening to the inside of the room and hindering emergency response. To deal with such situations, it has been proposed to exceptionally configure an inward-opening door body so that it opens to the outside. However, in this case, the bulging side edge of the door body edge member abuts against the extension provided for privacy purposes, preventing the door body from opening to the outside. Therefore, there is known a door that is configured so that an inward-opening door body can be opened to the outside in the event of an emergency such as that described above (see, for example, Patent Document 1). In this device, the door body side edge member is configured to include a fixed side edge half that is attached and fixed to the door body, a movable side edge half that is freely movable left and right relative to the fixed side edge half, and a spring mechanism consisting of a leaf spring that urges the movable side edge half toward the panel body.When the door body is opened to the outside in an emergency, the movable side edge half is pressed by the extension part that it abuts, and moves back toward the fixed side edge half against the spring mechanism, thereby enabling the door body to be opened to the outside in an emergency. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6802007 Summary of the Invention [Problem to be solved by the invention]

[0004] In the conventional inward-opening door that can be opened to the outside in an emergency, the spring mechanism's tip abuts on the movable edge half on the reverse side of the movable edge half's tip side, and as a result, the abutment position of the spring mechanism's tip is closer to the door-end panel (the tip of the movable edge half) than the position where the extension abuts on the movable edge half's tip side when the door is opened to the outside. Therefore, when the door is opened to the outside, the load applied when the extension abuts on the tip side side acts as a load moving the spring mechanism toward the inside of the room, rather than in the direction of compressing the spring mechanism and moving the movable edge half toward the fixed edge half, which causes the door body to be unable to open smoothly to the outside. Therefore, in the conventional device, the outdoor portion where the extension portion of the side surface of the tip of the movable edge half portion abuts is configured to be more gently inclined than the indoor portion, and the spring mechanism is arranged to be inclined toward the outdoor side. However, if this is done, the fixed edge member and the movable edge member will fit in the front and back incorrectly (opposite sides), making assembly less efficient. Furthermore, when closing the door body that is open to the outside, the spring mechanism is tilted in the opposite direction, which hinders the smooth retraction of the movable edge half toward the fixed edge half. This is a problem that the present invention aims to solve. [Means for solving the problem]

[0005] The present invention has been made in view of the above-mentioned circumstances and with the aim of solving these problems, and the invention of claim 1 is an inward-opening door device comprising left and right door-leading and door-rear-end panel bodies that separate the interior and exterior of a room, and an inward-opening door body that opens and closes an entrance formed between the door-leading and door-rear-end panel bodies by opening it toward the interior of the room, and door body-side and panel-side edge members that are respectively provided on the opposing edge portions of the door body and the door-leading-end panel body, the tip side portion of one side edge member is a bulging surface that bulges toward the center in the front-to-rear direction, and the other side edge member is provided on the exterior edge portion of the door body with an extension portion that extends toward the one side edge member to close the gap between both edge members. This inward-opening door device is configured to include a fixed edge half portion fixed to a panel body, a movable edge half portion that is freely movable left and right relative to the fixed edge half portion, and a spring mechanism interposed between the fixed and movable edge halves to bias the movable edge half portion.The door body can be opened to the outside by operating the door body to open toward the outside, causing the movable edge half portion to abut against the extension portion and sink into the fixed edge half portion against the spring mechanism.In this configuration, a position adjustment means is provided between the movable edge half portion and the spring mechanism to position the tip of the spring mechanism that interferes with the movable edge member toward the fixed edge half portion rather than the position where the extension portion abuts the movable edge half portion. The invention of claim 2 is an inward-opening door device as described in claim 1, characterized in that the door body side edge member is one side edge member, the panel body side edge member is the other side edge member, and the position adjustment means is formed to protrude from the movable side edge half toward the fixed side edge half. The invention of claim 3 is an inward-opening door device as described in claim 2, characterized in that the spring mechanism is composed of a leaf spring whose base end is fixed to the fixed side edge half and whose tip end abuts against the position adjustment means, and the position adjustment means abuts against the tip end of the leaf spring in a vertical line. The invention of claim 4 is an inward-opening door device according to claim 3, characterized in that the position adjustment means is formed in a pair at the front and rear so as to abut against the front and rear ends of the leaf spring. The invention of claim 5 is an inward-opening door device as described in claim 4, characterized in that a pair of screw pockets are formed at the front and rear of the movable side edge half for fixing with screws cover material that covers the upper and lower end edges of the movable side edge half, and the pair of front and rear screw pockets constitute a pair of front and rear position adjustment means. The invention of claim 6 is an inward-opening door device as described in claim 5, characterized in that the front and rear screw pocket portions are each composed of a pair of front and rear pocket pieces, and the position adjustment means is the pocket piece on the outer side in the front-to-rear direction of the pair of front and rear pocket pieces. The invention of claim 7 is an inward-opening door device as described in claim 2, characterized in that a base-end regulating portion is formed on the fixed-side edge half portion to regulate the displacement of the base end portion of the leaf spring. The invention of claim 8 is an inward-opening door device as described in claim 2, characterized in that a tip-side regulating portion is formed on the movable side edge half to regulate the displacement of the tip of the leaf spring. The invention of claim 9 is an inward-opening door device as described in claim 2, characterized in that in the normal state where there is no abutment of the extension portion, the abutment piece portions formed on both the front and rear end edges of the movable side edge half abut against the abutment receiving piece portions formed on both the front and rear end edges of the fixed side edge half, and a resin cushioning material is provided between the abutment piece portions of the movable side edge half and the abutment receiving piece portions of the fixed side edge half. The invention of claim 10 is an inward-opening door device according to claim 2, characterized in that the door body side edge member is provided with a space for a spacer to adjust the mounting position of the door body side edge member relative to the door body. The invention of claim 11 is an inward-opening door device comprising left and right door-leading and door-rear-end panel bodies that separate the interior and exterior of a room, and an inward-opening door body that opens and closes an entrance formed between the door-leading and door-rear-end panel bodies by opening it toward the interior of the room, wherein a door-body-side edge member that bulges out at the center of the front and rear direction of the leading edge side portion is provided at the leading edge of the door body, and a panel-body-side edge member that extends toward the door body and has an extension formed at the leading edge of the panel body at the outside edge to close the gap between the door-body-side edge member and the door-body-side edge member is provided at the leading edge of the panel body, The door is configured to include a movable edge half that is movable left and right relative to the fixed edge half, and a spring that is interposed between the fixed and movable edge halves and biases the movable edge half. When the door body is opened toward the exterior, the movable edge half is brought into contact with the extension and retracts against the spring. In this configuration, a pair of position adjustment means are provided on the front and rear of the movable edge half to position the tip of the spring that interferes with the movable edge member closer to the fixed edge half than the position where the extension contacts the movable edge half. The method for opening the door body toward the outdoor side includes an extension portion abutting step in which the door body in a closed position is opened toward the outdoor side until the outdoor side portion of the tip side portion of the movable side edge half abuts the extension portion; an outdoor retracting step in which, by further operating the door body toward the outdoor side from the extension portion abutting step, the extension portion presses the outdoor side portion of the movable side edge half against the elastic mechanism via the outdoor side position adjustment means, so that the outdoor side of the movable side edge half is in an inclined position retracted into the fixed side edge half; and, by further operating the door body toward the outdoor side from the outdoor retracting step, the extension portion presses the outdoor side portion of the movable side edge half against the elastic mechanism. This is a method for opening an inward-opening door device to the outdoor side, characterized in that the door body can be opened to the outdoor side through each of the following steps: a both-side retraction step in which the front and rear central part of the movable edge half is pressed against the spring via the position adjustment means, thereby causing both the front and rear of the movable edge half to retract into the fixed edge half; and an indoor-side retraction step in which the door body is opened to the outdoor side from the both-side retraction step, causing the extension part to press the indoor side part of the movable edge half against the spring via the indoor-side position adjustment means, thereby causing the indoor side of the movable edge half to assume an inclined position where it is retracted into the fixed edge half. [Effects of the Invention]

[0006] According to the invention of claim 1 or 11, an inward-opening door device that normally opens the door body toward the room is configured such that, of the edge members provided on the door body and the door-leading panel body, the tip side portion of one edge member is a bulging surface that bulges toward the center in the front-to-rear direction, and the outdoor edge portion of the other edge member is provided with an extension portion to close the gap between the two edge members, and the one edge member is equipped with a fixed edge half portion fixed to the door body or panel body, a movable edge half portion that is movable in the left and right directions relative to the fixed edge half portion, and a spring mechanism interposed between the fixed and movable edge half portions to bias the movable edge half portion, and the door body is opened toward the outdoor side by operating the door body toward the outdoor side, whereby the movable edge half portion comes into contact with the extension portion and moves against the spring mechanism to the fixed edge half portion and a position adjustment means is provided between the movable edge half and the spring mechanism to position the tip of the spring mechanism that interferes with the movable edge member closer to the fixed edge half than the position where the extension abuts the movable edge half.As a result, when the door body is opened to the outside, the load generated when the extension abuts the tip side surface acts as a load that presses the tip of the spring mechanism and displaces the movable edge half toward the fixed edge half.This allows the fixed edge half, movable edge half and spring mechanism to be made symmetrical from front to back with no misalignment between the front and rear, improving workability during assembly and also allowing the door body to be closed smoothly when it is opened to the outside. By adopting the invention of claim 2, the door body side edge member becomes one side edge member, the panel body side edge member becomes the other side edge member, and the position adjustment means is formed to protrude from the movable side edge half toward the fixed side edge half, so that the position adjustment means can be formed integrally with the movable side edge half. By adopting the invention of claim 3, the spring mechanism is composed of a leaf spring whose base end is fixed to the fixed edge half and whose tip end abuts against the position adjustment means, and the position adjustment means abuts against the tip end of the leaf spring in a vertical line, so that the movable edge half, which is abutted by the extension, can smoothly deform toward the fixed edge half. By adopting the invention of claim 4, the position adjustment means is formed as a pair of front and rear means that abut the front and rear ends of the tip of the leaf spring, resulting in smooth displacement of the movable edge half when the door body is opened toward the outside of the room, as it is supported at two points, front and rear. By making the invention as claimed in claim 5, the position adjustment means is also used as a screw pocket portion for fixing with screws the cover material that covers the upper and lower end edges of the movable edge half portion, thereby simplifying the structure. By adopting the invention of claim 6, the position adjustment means is constituted by the pocket piece on the outer side in the front-to-back direction of the pocket piece portions of the front and rear screw pocket portions, and as a result, the leaf spring is supported on the outer side in the front-to-back direction by this outer pocket piece portion, allowing it to displace in a stable state. According to the invention of claim 7, the base end of the leaf spring fixed to the fixed side edge half portion is restricted from shifting by the base end restricting portion, thereby ensuring reliable biasing. According to the invention of claim 8, the tip of the leaf spring that abuts against the movable edge half is restricted from shifting by the tip restricting portion, thereby ensuring reliable biasing. By adopting the invention of claim 9, the locking piece portions at both front and rear ends of the movable edge half portion will normally abut against the locking receiving piece portions at both front and rear ends of the fixed edge half portion. However, as a result of the provision of a resin cushioning material between the locking piece portions and the locking receiving piece portions, rattling of the locking piece portions relative to the locking receiving piece portions is prevented when the door body is operated to open toward the outside of the room, which not only allows for smooth displacement of the movable edge half portion but also avoids the generation of abnormal noise when the locking piece portions abut against the locking receiving piece portions. According to the invention of claim 10, the door body side edge member is provided with a space for a spacer to adjust the attachment position of the door body side edge member relative to the door body, so that the gap between the two edge members can be adjusted by providing a spacer in the space provided in the door body side edge member. [Brief explanation of the drawings]

[0007] [Figure 1] (A)(B)(C) are a front view, a plan view, and a side view of the toilet booth. [Figure 2] This is a horizontal cross-sectional view of the main parts of the toilet booth. [Figure 3] FIG. 2 is a horizontal cross-sectional view of the door body front end portion. [Figure 4] (A)(B)(C)(D) are a side view showing the base end of the leaf spring in the fixed side edge half portion of the door body with an imaginary line, a side view showing the screw pocket portion with an imaginary line, a plan view, and a vertical cross-sectional front view. [Figure 5] 1A, 1B, and 1C are a side view, a plan view, and a vertical cross-sectional front view of the edge material portion on the door body side. [Figure 6] 1A, 1B, and 1C are a side view, a front view, and a plan view of the fixed edge half. [Figure 7] 1A, 1B, and 1C are a side view, a front view, and a plan view of the movable edge half. [Figure 8] 1A, 1B, and 1C are a side view, a front view, and a plan view of a panel body side edge member. [Figure 9] (A), (B), and (C) are a side view, a front view, and a plan view of a leaf spring. [Figure 10] (A) (B) (C) (D) are a plan view, a side view, a front view of the cover material, and a plan view showing the state attached to the movable side edge half. [Figure 11] (A)(B)(C)(D)(E) are a plan view, a side view, a perspective view, a front view of the upper cover material, and a plan view showing the state attached to the fixed side edge half. [Figure 12](A)(B)(C)(D) are a bottom view, a side view, a front view of the lower cover material, and a bottom view showing the state attached to the door body. [Figure 13] 10A and 10B are explanatory views showing a state in which the restricting member restricts and allows the opening of the outdoor side. [Figure 14] 1A, 1B, 1C, and 1D are a plan view, a back view, a side view, and a plan view showing the state where the restricting member is attached to the door body. [Figure 15] 5A to 5D are explanatory views showing the first half of the opening process when the door body is opened to the outside of the room. [Figure 16] 10A to 10D are explanatory views showing the latter half of the opening process when the door body is opened to the outside of the room. [Figure 17] FIG. 10 is a horizontal cross-sectional view of a door body front end portion showing a second embodiment. [Figure 18] 4A to 4E are explanatory views showing the opening process when the door body is opened to the outside of the room. [Figure 19] FIG. 10 is a horizontal cross-sectional view of a door body door leading end portion showing a third embodiment. [Figure 20] FIG. 10 is a horizontal cross-sectional view of a door body front end portion showing a fourth embodiment. [Figure 21] FIG. 13 is a horizontal cross-sectional view of a door body front end portion showing a fifth embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0008] The following describes an embodiment of the present invention with reference to the drawings. In the drawings, reference numeral 1 denotes a toilet booth installed in a room. The toilet booth 1 is divided by left and right front door edge and rear door edge panel bodies 2 and 3, front and rear depth panel bodies 15, and a wall surface W on the main body side. To open and close an entrance E formed between the door edge and rear door edge panel bodies 2 and 3, the toilet booth 1 is equipped with an inward-opening door body 4 pivotally supported on the rear door edge via a swing shaft 4d so as to be freely swingable in the front and rear directions, all of which are conventional. The present invention is implemented by attaching a door body edge member 5 to the leading edge of the door body 4, and attaching a panel body edge member 6 to the leading edge of the door body panel 2 that faces the door body 4. The specific configuration of these edge members 5, 6 will be explained below, but since both edge members 5, 6 only need to have a structure relative to each other, it goes without saying that the present invention can also be implemented with a configuration opposite to this embodiment in which a member with a structure similar to the door body edge member 5 is attached to the door body panel 2, and a member with a structure similar to the panel body edge member 6 is attached to the door body 4.

[0009] The door body side edge member 5 is composed of a fixed side edge half 7 attached to the leading edge of the door body 4 on the door front side, a movable side edge half 8 that is freely movable in the left and right direction relative to the fixed side edge half 7, and a leaf spring 9 which is an elastic mechanism that urges the movable side edge half 8 toward the door front side panel body 2. The fixed side edge half 7 is U-shaped and has a projection piece 7a that abuts (opposes) the door leading end surface 4a of the door body 4, and front and rear projection pieces 7b that bend from both the front and rear edge parts of the projection piece 7a toward the door trailing end and abut against the front and rear (front and rear) panel 4b of the door body 4, and a pair of front and rear (outdoor and indoor) protruding pieces 7c that protrude toward the door leading side panel body 2 are formed on both the front and rear edge parts of the surface (door leading side portion) of the projection piece 7a, and a locking receiving piece 7d is formed that is bent inward in the front and rear direction from the tip edge of the protruding piece 7c. Furthermore, a pair of front and rear base end regulating portions 7e are formed on the door tip side of the projection portion 7a, which are located further inward in the front-to-rear direction than the protruding portion 7c and regulate the positional deviation of the base end portion 9a of the leaf spring 9.

[0010] In contrast, the movable side edge half 8 is composed of a pair of front and rear locking pieces 8a that abut against the locking receiving piece 7d from the door trailing side, front and rear guide piece pieces 8b that extend from the inner front-to-rear end of the locking piece 8a toward the door leading panel body 2, facing closely to the inside of the front-to-rear direction relative to the locking receiving piece 7d, and guide the left and right movement of the movable side edge half 8 relative to the fixed side edge half 7, and a tip side surface portion 8c that extends toward the inside in the front-to-rear direction to connect the tip edges of the front and rear guide piece pieces 8b, and is composed so that the central part in the front-to-rear direction bulges toward the door leading panel body 2 and forms an arc surface in a plan view. Furthermore, a pair of front and rear screw pockets 8d are formed on the back surface (back surface, side surface of fixed edge half 7) of tip side surface 8c so as to protrude from the back surface, and these front and rear screw pockets 8d are composed of a pair of front and rear arc-shaped pocket pieces 8da, 8db. Of these pocket pieces 8da, 8db, the outer pocket piece 8da in the front-to-rear direction protrudes further toward the fixed edge half 7 than the inner pocket piece 8db.

[0011] Meanwhile, the leaf spring 9 constituting the elastic mechanism of this embodiment is fixed to the door-leading side vertical frame member 4c of the door body 4 by a screw 9b that is threaded from the base end 9a through the projection piece 7a, with the base end 9a fitted between the front and rear base end restriction parts 7e to restrict positional displacement in the front-to-rear direction. The leaf spring 9 is configured such that a spring main body part 9c extends obliquely from one vertical edge of the base end 9a, and the front and rear outer pocket pieces 8da abut linearly in the vertical direction against a tip end part 9d that is bent in the vertical direction from the tip edge of the spring main body part 9c. By configuring it in this manner, when the door body 4 is opened and closed normally toward the interior side, the movable side edge half 8 is subjected to the biasing force (elastic pressure) of the leaf spring 9, and is in its normal position with the locking piece 8a abutting against the locking receiving piece 7d. In this embodiment, the fixed edge half 7, the movable edge half 8, and the leaf spring 9 are all configured in a line-symmetrical manner in the front and rear directions with the door center line X of the door body 4 as the center of symmetry.

[0012] On the other hand, the panel body side edge member 6 is attached to the door trailing side edge portion of the door leading side panel body 2 in a state facing the door body side edge member 5, and when the door body 4 is closed, the tip side surface portion 8c of the movable side edge half portion 8 faces the edge main body portion 6a with a gap (gap) S remaining therebetween, and is bent from the front and rear both end edges of the edge main body portion 6a toward the door leading side and engaged with the front and rear corner portions 2b of the door trailing side (door body 4 side) edge portion 2a of the door leading side panel body 2. and a pair of front and rear support pieces 6d that protrude from the front-to-rear middle of the edge main body 6a toward the door leading edge and abut against the trailing edge 2a of the door leading panel body 2. The panel body side edge member 6 can be attached and fixed to the door leading panel body 2 by inserting a screw 6f from the front-to-rear middle of the edge main body 6a (between the front and rear support pieces 6d) into the vertical frame material 2c of the door leading panel body 2.

[0013] An extension portion 6e is formed at the outdoor end edge of the panel body side edge member 6 configured in this manner to close the gap S and prevent the interior and exterior of the room from being seen through, extending the edge main body portion 6a and the outdoor side piece portion 6b toward the door body 4.The tip edge portion 6ea of ​​the extension portion 6e is configured to face the corner portion 8ca of the outdoor guide piece portion 8b of the tip side surface portion 8c of the movable side edge half portion in a position with a gap in the front-to-rear direction when the door body 4 is closed. The position of the tip edge 6ea of ​​the extension 6e when the door body 4 is in the closed state is configured to be biased by a left-right width Z toward the door-end panel body 2 relative to the position of the tip 9d of the leaf spring 9, and by configuring it in this manner, the pocket piece 8da on the outer front-to-rear direction constitutes a position adjustment means for adjusting the tip 9d of the leaf spring to the biased position.

[0014] Furthermore, in this embodiment, the upper and lower end edges of the movable side edge half 8 are covered with a cover material 10 for the movable side edge half 8. The cover material 10 is configured in a flat plate shape and is attached by screwing a screw 10a into the screw pocket portion 8d while it is placed against the upper and lower end edges of the movable side edge half 8.

[0015] Meanwhile, an upper cover material 11 and a lower cover material 12 for the fixed edge half 7 are attached to both the upper and lower edge portions of the fixed edge half 7. Both the upper and lower cover materials 11, 12 are attached to the fixed edge half 7 in a state where they are positioned outward in the vertical direction relative to the cover material 10 for the movable edge material, so that the left and right movement of the movable edge half 8 is not hindered. The upper cover material 11 is configured to be T-shaped when viewed from the front, and comprises an upper blocking piece 11a and an attachment piece 11b hanging down from the upper blocking piece 11a, and is attached by abutting the upper blocking piece 11a against the upper edge of the fixed side edge half 7 and fixing the attachment piece 11b to the door leading end surface 4a of the door body 4 via a screw 11c. The lower cover material 12 is flat and is configured to be attached by fixing it to the lower edge of the door body 4 via screws 12a while it is in contact with the fixed side edge half 7 and the lower edge of the door body 4.

[0016] Furthermore, a restricting member 13 is provided at the upper edge of the door leading end of the door body 4 to prevent the door body 4 from accidentally moving open to the outside when the door body 4 is performing normal opening and closing operations. The restricting member 13 is composed of an attachment part 13b attached to the upper edge of the door leading end of the door body 4 with a screw 13a, a support part 13c suspended from the inside end of the attachment part 13b so as to fit along the inside surface of the door body 4, a locking part 13d whose lower end is attached to a spindle 13ca provided on the support part 13c so as to be able to swing freely up and down and move freely left and right, and a coil spring 13e which urges the locking part 13d which has moved left and right towards its original position. In the normal state in which the door body 4 swings open and closed toward the inside of the room, the regulating member 13 is in a regulating position in which the engagement hole 13da formed in the engagement portion 13d is engaged with the engagement protrusion 13ba formed in the mounting portion 13b, and in this regulating position, the engagement portion 13d stands up and is positioned above the door body 4, suspended over the entrance E, and engages with the rail material 14 provided on the door front and door rear panel bodies 2, 3 from the inside of the room, thereby regulating the opening of the door body 4 toward the outside of the room. In such a normal state, in an emergency where the door body 4 cannot be opened to the inside of the room due to a person inside the room falling or the like, and it becomes necessary to open the door body 4 to the outside of the room in an emergency, the locking portion 13d can be moved left and right against the coil spring mechanism 13e with a finger inserted between the rail material 14 and the upper edge of the door body 4, and the locking protrusion 13ba will come out of the locking hole 13da, thereby allowing the locking portion 13d to assume a collapsed position and releasing the restriction on opening the door body 4 to the outside of the room.

[0017] The process of opening the door body 4 toward the exterior side in a state where the restriction on opening the door body 4 toward the exterior side has been released will be specifically described with reference to FIGS. First, as shown in Figure 15(A), when the door body 4 is opened from its closed state toward the exterior, the leading edge 6ea of ​​the extension 6e of the panel body edge member 6 abuts against the exterior corner 8ca of the leading side surface 8c of the movable side edge half (see Figure 15(B)). When the door body 4 is further opened toward the exterior from this state, the leading side surface 8c moves toward the exterior relative to the leading edge 6ea. At this time, the leaf spring leading edge 9d abuts against the pocket piece 8da on the outer front-rear direction, which constitutes the position adjustment means of the present invention, and is displaced by the lateral width Z toward the fixed side edge half 7 in the lateral direction relative to the abutting leading edge 6ea. As a result, the load applied by the leading edge 6ea to the leading side surface 8c acts as a load to press against the leaf spring 9.

[0018] As a result, when the door body 4 is further opened toward the outside of the room, the movable side edge half 8 goes through a process in which the outside-side locking piece 8a moves away from the locking receiving piece 7d (see Figure 15(C)), a process in which the outside-side locking piece 8a moves further away from the locking receiving piece 7d and the inside-side locking piece 8a moves away from the locking receiving piece 7d (see Figure 15(D)), and when the tip edge 6ea reaches the center position in the front-to-back direction of the tip side surface portion 8c, the state of separation between the locking piece 8a and the locking receiving piece 7d on the inside and outside of the room changes to a stage in which the separation state reaches an even point (peak) (see Figure 16(A)). When the door body 4 is further opened to the outside from this state, the tip side surface portion 8c moves to the outside relative to the tip edge portion 6ea, and the movable side edge half portion 8 goes through a process in which the indoor side locking piece 8a moves further away from the locking receiving piece 7d and the distance between the outdoor side locking piece 8a and the locking receiving piece 7d becomes smaller (see Figure 16(B)), and then a process in which the distance between the indoor side locking piece 8a and the locking receiving piece 7d becomes larger and the outdoor side locking piece 8a abuts the locking receiving piece (see Figure 16(C)).The door body 4 then passes over the door-end panel body 2 and opens to the outside, and in this way the door body 4 is configured to be able to open to the outside.

[0019] In the present embodiment, which is configured as described above, in the inward-opening door device 1 that normally opens the door body 4 to the indoor side, a door body edge member 5 and a panel body edge member 6 are provided at the opposing edge portions of the door body 4 and the door front panel body 2, and the door body 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 front side edge portion of the door body 4, and a tip side surface portion 8c of the movable side edge half 8 is configured as a bulging surface that bulges toward the center side in the front-rear direction. On the other hand, an extension 6e is provided at the outdoor edge of the panel body side edge member 6 to close the gap S between the two edge members 5, 6, and a leaf spring 9 is provided between the fixed and movable edge halves 7, 8 to bias the movable edge half 8.When the door body 4 is opened to the outdoor side, the movable edge half 8 comes into contact with the extension 6e and sinks into the fixed edge half 7 against the biasing force of the leaf spring 9, allowing the door body 4 to be opened to the outdoor side.

[0020] In the toilet booth 1 configured in this manner, the screw pocket portion 8d provided on the movable side edge half 8 functions as a position adjustment means for positioning the tip portion 9d of the leaf spring 9, which interferes with the movable side edge member 8, closer to the fixed side edge half 7 than the position where the extension portion 6e abuts against the movable side edge half 8. As a result, when the door body 4 is opened to the outside of the room, the load applied when the extension portion 6e abuts against the movable side edge half 8 acts as a load in the direction of displacing the movable side edge half 8 toward the fixed side edge half 6, with the tip portion 9d of the leaf spring 9 resisting the urging force, allowing the door body 4 to be opened smoothly. As a result, the fixed side edge half 7, the movable side edge half 8, and the spring mechanism 9 can be made symmetrical in shape with respect to the front and rear door center line X of the door body 4, which does not cause any misalignment between the front and rear, and not only does this improve workability during assembly, but also allows the door body to be closed smoothly when it is opened to the outside, just like when it is opened to the outside.

[0021] Moreover, in this device, a position adjustment means is formed on the movable edge half 8 provided on the door body 4, so the movable edge half 8 can be integrally formed with the position adjustment means, thereby simplifying the structure.Furthermore, this position adjustment means is also used as a screw pocket portion 8d for attaching cover material 10 that covers the top and bottom of the movable edge half 8, so the structure of the movable edge half 8 does not become complicated. Furthermore, the screw pocket portion 8d, which also serves as the position adjustment means, abuts against the tip portion 9d of the leaf spring 9 at two points, front and rear, which provides more stable support for the leaf spring 9 than when abutting at one point, front and rear, as in the second embodiment described below.Furthermore, in this embodiment, of the pair of pocket pieces 8da, 8db that make up the front and rear screw pocket 8d, the pocket piece 8da on the outer front and rear side serves as the position adjustment means, abutting in a vertical line in the up and down direction, which stabilizes the abutment support against the tip portion 9d of the leaf spring and allows the movable edge half 8 to smoothly deform toward the fixed edge half 7. Furthermore, the base end 9a of the leaf spring 9 is fixed to the fixed side edge half 7, and the base end 9a of the leaf spring is prevented from shifting by the base end regulating portion 7e provided on the fixed side edge half 7, thereby ensuring reliable biasing.

[0022] When the door body 4 configured in this way is opened, the method for opening the door body 4 to the outside of the room is as follows: an extension portion abutting step of opening the door body 4 in the closed position toward the exterior side until the exterior side portion of the tip side surface portion 8c of the movable side edge half portion 8 abuts against the extension portion 6e; an outdoor-side recession step in which the door body 4 is further opened toward the outdoor side from the extension-portion abutment step, so that the extension portion 6e presses the outdoor-side pocket piece 8da against the leaf spring 9 as a position adjustment means against the outdoor-side portion of the movable-side edge half 8, causing the movable-side edge half 8 to change into an inclined position in which the outdoor-side portion is recessed toward the fixed-side edge half 7; a bilateral retraction step in which the door body 4 is further opened to the exterior side from the exterior retraction step, so that the extension portion 6e presses the front-rear center portion of the movable edge half portion 8 against the leaf spring 9 by the pocket pieces 8da on both the interior and exterior sides of the door body 4, and the movable edge half portion 8 is retracted into the fixed edge half portion 7 on both the front and rear sides; By further operating the door body 4 to open toward the outside of the room from the both-side retraction process, the extension portion 6e now presses the indoor-side pocket piece 8da against the leaf spring 9 as a position adjustment means against the indoor-side portion of the movable-side edge half 8, resulting in an indoor-side retraction process in which the indoor-side portion of the movable-side edge half 8 is transformed into an inclined position retracted toward the fixed-side edge half 7. By going through each of the above steps, the door body 4 can be opened to the outside of the room. The door body 4 that has been opened to the outside of the room can then smoothly return to the closed position by going through the steps in reverse to those described above.

[0023] Of course, the present invention is not limited to the above embodiment, and the elastic device that biases the movable edge half 8 is not limited to a leaf spring, but any appropriate elastic device such as a coil elastic device can be used. Furthermore, the position adjustment means may be a dedicated means instead of using the screw pocket 8d as in the previous embodiment. For example, as in the second embodiment shown in Figures 17 and 18, a dedicated position adjustment means 8e may be provided on the movable edge half 8. This has a position adjusting means 8e formed to protrude from the center in the front-rear direction of the tip side surface portion 8c of the movable edge half portion 8, and may be formed as in the second embodiment.

[0024] Furthermore, in carrying out the present invention, in order to regulate the positional deviation of the tip edge 9d of the leaf spring 9, as in the third embodiment shown in Figure 19, a tip side regulating portion 8f bent into an L shape can be formed at the tip edge of the outside pocket piece 8da that constitutes the position adjustment means. In this way, the door body 4 can be opened to the outside of the room in a stable state in which the positional deviation of the tip 9d of the leaf spring 9 is regulated.

[0025] Furthermore, in the present invention, as in the fourth embodiment shown in Figure 20, the fixed side edge half 7 is provided with a space Y for a spacer to adjust the attachment position of the door body side edge member 5 relative to the door body 4.As a result, by providing a spacer 16 in this space Y as necessary, it is possible to adjust the gap between the two edge members 5, 6. Furthermore, in the present invention, as in the fifth embodiment shown in Figure 21, resin cushioning materials 17 can be provided on the locking pieces 8a at both the front and rear ends of the movable edge half 8. In this way, when the door body 4 is opened toward the outside of the room, rattle of the locking pieces 8a against the locking receiving pieces 7d is prevented, and not only is displacement of the movable edge half 8 smooth, but noise when the locking pieces 8a come into contact with the locking receiving pieces 7d is also avoided. [Industrial Applicability]

[0026] The present invention can be used as an inward-opening door device that is attached to the entrance of a room such as a toilet booth, and as a method for opening the door device to the outside of the room. [Explanation of symbols]

[0027] 1 Toilet booth 2 Door front panel 2a Door end edge 3 Door end panel 4 door body 4a Door end surface 5 Door body side edge member 6 Panel body side edge member 6a Edge main body 6e Extension 6ea Tip edge 7 Fixed side edge half 7d Locking piece 7e Proximal regulation part 8 Movable side edge half 8a Locking piece 8c Tip side part 8d Screw pocket 8da outer pocket part 9. Leaf springs 9a Proximal end 9c Spring body 9d Tip 10 Cover material Entrance E S Gap

Claims

1. The door is equipped with left and right door-leading and door-trailing panel bodies that separate the interior and exterior of the room, and an inward-opening door body that opens and closes the entrance formed between the door-leading and door-trailing panel bodies by opening it toward the interior of the room. The door frame is fitted with a door edge member and a panel edge member, respectively, at the opposing edges of the door frame and the panel edge member. The edge member on one side of the door frame has a bulging surface that bulges out toward the center in the front-to-rear direction, while the outside edge of the other side of the door frame has an extension that extends toward the edge member on the other side to close the gap between the edge members. The one-side edge member is configured to include a fixed-side edge half portion fixed to the door body or panel body, a movable-side edge half portion movable in the left-right direction relative to the fixed-side edge half portion, and a resilient device interposed between the fixed-side and movable-side edge half portions to bias the movable-side edge half portion, When the door body is opened to the outside of the room, the movable edge half is brought into contact with the extension part and retracts into the fixed edge half against the spring mechanism by operating the door body to the outside of the room. The door is designed to be an inward-opening door, characterized in that a position adjustment means is provided between the movable edge half and the spring mechanism to adjust the position of the tip of the spring mechanism that interferes with the movable edge member to a position closer to the fixed edge half than the position where the extension portion abuts the movable edge half.

2. The door body side edge member is the one-side edge member, and the panel body side edge member is the other-side edge member, 2. The inward-opening door device according to claim 1, wherein the position adjusting means is formed to protrude from the movable-side edge half toward the fixed-side edge half.

3. The spring mechanism is composed of a leaf spring whose base end is fixed to the fixed-side edge half portion and whose tip end abuts against the position adjustment means, 3. The inward-opening door device according to claim 2, wherein the position adjusting means abuts on the tip of the leaf spring in a vertical line.

4. 4. The inward-opening door device according to claim 3, wherein the position adjusting means is formed in a pair at the front and rear so as to abut against the front and rear ends of the leaf spring.

5. The movable edge half is formed with a pair of front and rear screw pockets for fixing with screws cover materials for covering the upper and lower end edges of the movable edge half, 5. An inward-opening door device according to claim 4, wherein the pair of front and rear screw pockets constitute a pair of front and rear position adjustment means.

6. The front and rear screw pockets are each composed of a pair of front and rear pocket pieces, 6. The inward-opening door device according to claim 5, wherein the position adjusting means is an outer pocket piece in the front-rear direction of the pair of front and rear pocket pieces.

7. 3. The inward-opening door device according to claim 2, wherein a base-end restricting portion for restricting displacement of the base end of the leaf spring is formed on the fixed-side edge half portion.

8. 3. The inward-opening door device according to claim 2, wherein a tip-side restricting portion is formed on the movable edge half portion to restrict displacement of the tip of the leaf spring.

9. The locking pieces formed on both front and rear end edges of the movable edge half abut against the locking receiving pieces formed on both front and rear end edges of the fixed edge half in a normal state where the extension portion is not abutting against them, 3. The inward-opening door device according to claim 2, wherein a buffer material made of resin is provided between the locking piece of the movable edge half and the locking receiving piece of the fixed edge half.

10. 3. The inward-opening door device according to claim 2, wherein the door body edge member is provided with a space for a spacer for adjusting the attachment position of the door body edge member relative to the door body.

11. The door is equipped with left and right door-leading and door-trailing panel bodies that separate the interior and exterior of the room, and an inward-opening door body that opens and closes the entrance formed between the door-leading and door-trailing panel bodies by opening it toward the interior of the room. A door body side edge member is provided at the leading edge of the door body, the leading edge side portion of which bulges out toward the center in the front-rear direction, In an inward-opening door device, a panel body edge member is provided at the tip edge of the panel body, and an extension portion is formed at the exterior edge of the door body to extend toward the door body and close the gap between the panel body edge member and the door body edge member. The door body side edge member is configured to include a fixed side edge half portion fixed to the door body, a movable side edge half portion movable in the left and right direction relative to the fixed side edge half portion, and a spring mechanism interposed between the fixed side and movable side edge half portion to bias the movable side edge half portion, The door body can be opened to the outside of the room by operating the door body to open to the outside of the room, and the movable edge half part comes into contact with the extension part and sinks against the spring mechanism, The movable edge half is provided with a pair of position adjusting means at the front and rear for adjusting the position of the tip end of the spring that interferes with the movable edge member of the spring to a position closer to the fixed edge half than the position where the extension abuts against the movable edge half, As a method for opening the door body to the outside of the room, an extension portion abutting step of opening the door body in a closed position toward the exterior side until the exterior side portion of the tip side surface of the movable side edge half abuts against the extension portion; - An outdoor immersion step in which the door body is further opened toward the outdoor side from the extension abutment step, and the extension presses the outdoor side portion of the movable side edge half against the elastic mechanism via the outdoor side position adjustment means, so that the outdoor side of the movable side edge half is in an inclined position immersed in the fixed side edge half. By further operating the door body to open toward the outside of the room from the outdoor retraction step, the extension part presses the center part of the movable edge half in the front-rear direction against the elastic mechanism via the position adjustment means on both the indoor and outdoor sides, thereby causing both the front and rear of the movable edge half to retract into the fixed edge half (a double retraction step). - An indoor-side immersion step in which the door body is further opened toward the outside from the both-side immersion step, and the extension portion presses the indoor-side portion of the movable-side edge half against the elastic mechanism via the indoor-side position adjustment means, so that the indoor-side portion of the movable-side edge half is in an inclined position immersed in the fixed-side edge half. The method for opening an inward-opening door device to the outside of the room is characterized in that the door body is configured to be opened to the outside of the room through each of the steps above.

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