Door panels and partition structures
The door panel's innovative locking mechanism enables smooth closure by allowing rotational displacement in an open state and restricting it in a closed state, addressing operational challenges in existing partition structures.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- ITOKI CORP
- Filing Date
- 2022-07-29
- Publication Date
- 2026-07-23
Smart Images
Figure 0007894012000001 
Figure 0007894012000002 
Figure 0007894012000003
Abstract
Description
Technical Field
[0001] This disclosure relates to a door panel movable along a rail and a partition structure including the door panel.
Background Art
[0002] Conventionally, a partition structure has been disclosed in which a door panel including a frame body and a door body is suspended from a ceiling (see, for example, Patent Document 1).
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0004] In the partition structure described in Patent Document 1, a lock mechanism may be employed to prevent the door body from opening during the movement of the door panel. In this configuration, there are cases where the door body cannot be closed, such as when the lock mechanism operates while the door body is open. Therefore, an object of the present disclosure is to solve the above problems.
Means for Solving the Problems
[0005] A door panel according to a first aspect of the present invention is a door panel that is suspended from a rail provided on the ceiling and is movable along the rail, comprising a frame and a door body rotatably assembled to the frame, the frame comprising an upper frame forming the upper edge of the door panel and at least one side frame forming the side edge of the door panel, the door body being assembled to one of the side frames via a hinge so as to be able to open and close the lower region of the upper frame, the frame is provided with a locking mechanism that restricts the rotational displacement of the door body when the door panel is movable, the locking mechanism is variable between an open position that allows rotational displacement of the door body in the closed state and a restricting position that restricts rotational displacement of the door body in the closed state, the locking mechanism in the restricting position allows closing of the door body in the open state The locking mechanism includes a locking pin that is movable forward and backward relative to the door body. When the locking mechanism is in the open position, the locking pin retracts away from the side of the door body. When the locking mechanism is in the restricted position, the locking pin advances toward the side of the door body and is inserted into a locking hole formed in the door body. The tip of the locking pin has an inclined surface formed toward the open side of the door body, thereby allowing the door body to be closed when the locking mechanism is in the restricted position. An upper frame sealing member is provided on the upper part of the upper frame, projecting to the side of the door panel so as to be vertically displaceable, and the upper frame sealing member is configured to be vertically displaceable and to contact the rail when pressed toward the upper frame. The locking pin is movable forward and backward relative to the door body in accordance with the vertical movement of the upper frame sealing member. .
[0006] According to the door panel relating to the first point of view described above, when the door body is in the open position, the door panel becomes movable, which allows the door body to be closed even if the locking mechanism changes from an open position to a restricted position. Furthermore, the door can be closed by having the door body abut against the inclined surface and retract the locking pin. In addition, the locking mechanism can be opened in conjunction with the closing of the gap on the upper side of the door panel.
[0007] In the door panel relating to the first aspect described above, the side frame may be provided on one side of the door panel's edge or on both sides. Furthermore, the locking mechanism may be provided on either the upper frame or the side frame.
[0008] This invention Second perspective The door panel relating to this is First perspective The door panel relating to the lock pin is restricted from rotating around its axis.
[0009] the above Second perspective According to the door panel, the inclined surface can always be oriented towards the opening side of the door body.
[0010] A door panel according to a third aspect of the present invention is a door panel that is suspended from a rail provided on the ceiling and is movable along the rail, comprising a frame and a door body rotatably assembled to the frame, wherein the frame comprises an upper frame forming the upper edge of the door panel and at least one side frame forming the side edge of the door panel, the door body is assembled to one of the side frames via a hinge so that the lower region of the upper frame can be opened and closed, the frame is provided with a locking mechanism that restricts the rotational displacement of the door body when the door panel is movable, the locking mechanism is variable between an open position that allows rotational displacement of the door body in the closed state and a restricting position that restricts rotational displacement of the door body in the closed state, and the locking mechanism in the restricting position allows closing of the door body in the open state Furthermore, the locking mechanism includes a locking pin that is movable forward and backward relative to the door body, and when the locking mechanism is in the open position, the locking pin retracts away from the side of the door body, and when the locking mechanism is in the restricting position, the locking pin advances toward the side of the door body and is inserted into a locking hole formed in the door body, and an inclined surface is formed on the side of the door body that is closed relative to the locking hole, thereby allowing the door body to be closed when the locking mechanism is in the restricting position. .
[0011] the above Third perspective According to the door panel, when the door is in the open position, the door panel becomes movable, which allows the door to be closed even if the locking mechanism changes from an open position to a restricted position. Furthermore, the inclined surface can be moved into contact with the locking pin, thereby closing the door.
[0012] This invention Fourth perspective The partition structure related to this is From either the first or third perspective The system comprises a door panel as described above and at least one other panel that is movable along the rail, wherein the door panel and the other panel are arranged in a continuous manner.
[0013] the above Fourth perspective According to the partition structure described herein, even if the door panel of the partition structure is movable and the locking mechanism changes from an open position to a restricted position while the door is open, it is still possible to close the door. [Effects of the Invention]
[0014] The door panel and partition structure according to the present invention described above have the following effects.
[0015] According to the door panel according to the first aspect, even when the lock mechanism changes from the release position to the restriction position while the door body is in the open state in the movable state, the door body can be closed. Furthermore, the door body can contact the inclined surface, retracting the lock pin. Additionally, the lock mechanism can be opened simultaneously with closing the gap at the top of the door panel.
[0016] According to the door panel according to the second aspect, the inclined surface can always be directed toward the open side of the door body.
[0017] According to the door panel according to the third aspect, even when the lock mechanism changes from the release position to the restriction position while the door body is in the open state in the movable state, the door body can be closed. Furthermore, the door body can contact the inclined surface, allowing the locking pin to retract.
[0018] Fourth perspective According to the partition structure according to, even when the lock mechanism changes from the release position to the restriction position while the door body is in the open state and the door panel is in the movable state, the door body can be closed.
Brief Description of the Drawings
[0019] [Figure 1] Front view showing the partition structure according to the first embodiment. [Figure 2] Front view showing the door panel in the partition structure. [Figure 3] Front cross-sectional view showing the lock mechanism when the door panel moves. [Figure 4] Front cross-sectional view showing the lock mechanism when the door panel is fixed. [Figure 5] Cross-sectional view taken along line X1-X1 in FIG. 3. [Figure 6] Cross-sectional view taken along line X2-X2 in FIG. 4. [Figure 7] (a) to (c) are cross-sectional views showing the order in which the door body closes when the lock mechanism is in the restricted position in the first embodiment. [Figure 8] Cross-sectional view showing the lock mechanism when the door panel moves in the second embodiment. [Figure 9](a) to (c) are cross-sectional views showing the sequence in which the door body closes when the locking mechanism is in the restricting position in the second embodiment. [Figure 10] A front view showing a door panel in a partition structure according to the third embodiment. [Figure 11] (a) and (b) are front cross-sectional views showing the locking mechanism for the door panel during movement and in a fixed position, respectively, according to the third embodiment. [Figure 12] A cross-sectional view showing the locking mechanism for the door panel during movement in the third embodiment. [Modes for carrying out the invention]
[0020] [First Embodiment] The following describes the partition structure 1 and the configuration of the door panel D provided by the partition structure 1 according to the first embodiment of the present invention, using Figures 1 to 7. As shown in Figure 1, the partition structure 1 according to this embodiment is configured to be able to close off an opening formed by the ceiling C, floor F, first wall W1, and second wall W2. The partition structure 1 is used, for example, to divide spaces in offices, schools, hospitals, stores, etc. In this specification, the front side of the paper in Figure 1 is referred to as the front of the partition structure 1, and the left side of Figure 1 is referred to as the left side of the partition structure 1.
[0021] The partition structure 1 according to this embodiment comprises a rail 2 provided on the ceiling C, a plurality of panel members P, P, ... and a door panel D suspended from the rail 2 and movable along the rail 2, and an end panel 4 suspended from the rail 2 that closes the right end of the opening. As shown in Figure 1, in the partition structure 1 according to this embodiment, the three panel members P, the door panel D, and the end panel 4 are suspended via a suspension member 7 and are arranged continuously with their side ends in contact with each other. A pressing portion 4a extends from the right side of the end panel 4. The pressing portion 4a presses against the second wall W2, thereby closing the right end of the partition structure 1.
[0022] In the partition structure 1 according to this embodiment, the three panel members P and the door panel D, which are gathered on the right side when open, are sequentially moved to the left along the rail 2 and connected in a line as shown in Figure 1. The leftmost panel member P abuts against the first wall W1, and the end panel 4 closes the space between the right side of the door panel D and the second wall W2, making it possible to partition the space from the ceiling C to the floor F.
[0023] As shown in Figure 1, each panel member P comprises a panel body 3, an upper closing portion 5, a lower closing portion 6, and a suspension support member 7. As shown in Figure 1, when the opening is closed by the partition structure 1, the gap between each panel member P and the rail 2 is closed by the upper closing portion 5. Also, when the opening is closed by the partition structure 1, the gap between each panel member P and the floor surface F is closed by the lower closing portion 6.
[0024] As described above, in the partition structure 1, the gap between the panel member P and the rail 2 is closed by the upper closing part 5, and the gap between the panel member P and the floor surface F is closed by the lower closing part 6, thereby preventing sound and light leakage between the partitioned spaces.
[0025] The suspension member 7 is a member that connects the panel body 3 and the rail 2 in a displaceable manner, and a roller is rotatably supported on a support shaft. The roller of the suspension member 7 is housed horizontally and rotatably inside the rail 2. By the rotation of the roller of the suspension member 7 inside the rail 2, each panel member P is made displaceable along the rail 2 (the same applies to the door panel D and the end panel 4).
[0026] In the partition structure 1 according to this embodiment, as shown in Figure 2, the door panel D is composed of a frame 10 and a door body 20. The door body 20 is rotatably mounted to the frame 10. A door knob 21 is provided on the door body 20. In addition, a door seal portion 26 is provided at the lower end of the door body 20 to close the gap between the door body 20 and the floor surface F.
[0027] In the door panel D, the frame 10 is connected to the rail 2 via a suspension member 7. The frame 10 comprises an upper frame 11 that forms the upper edge of the door panel D and a side frame 12 that forms the right side of the door panel D. In the door panel D, the door body 20 is attached to the side frame 12 via a hinge (not shown), thereby allowing the lower region of the upper frame 11 to be opened and closed.
[0028] In the door panel D according to this embodiment, as shown in Figure 2, an upper frame frame 13, which is a rectangular tube member that supports the upper frame 11, is housed inside the upper frame 11 along the left-right direction. A side frame frame 14, which is a rectangular tube member that supports the side frame 12, is housed inside the side frame 12 along the up-down direction. A regulating mechanism 30 for regulating the relative displacement of the lower end of the side frame 12 with respect to the floor surface F is housed inside the side frame frame 14.
[0029] In the door panel D, the regulating mechanism 30 mainly comprises an operating unit 31, a lifting rod 32, and a side frame sealing member 33. The operating unit 31 is assembled to the side frame frame 14 at an intermediate point in the vertical direction. The lifting rod 32 is configured to move up and down in the vertical direction by the operation of the operating unit 31. The side frame sealing member 33 is connected to the lower part of the lifting rod 32. When the lifting rod 32 is lowered, the side frame sealing member 33 comes into contact with the floor surface F, thereby closing the gap between the side frame 12 and the floor surface F. In this way, the side frame sealing member 33 comes into contact with the floor surface F, and the relative displacement of the side frame 12 with respect to the floor surface F is restricted.
[0030] An upper frame seal portion 15 is provided at the upper end of the upper frame 11 of the door panel D to close the gap between the upper frame 11 and the rail 2. As shown in Figures 3 and 4, the upper frame seal portion 15 is composed of a support frame 15a, a biasing link 15b, an upper frame seal member 15c, a pressing portion 15d, and a contact member 15e.
[0031] The support frame 15a is fixed to the upper side inside the upper frame 11. The upper frame sealing member 15c is connected to the support frame 15a via a biasing link 15b. As shown in Figure 3, the upper frame sealing member 15c is biased by the biasing link 15b to protrude to the left side of the door panel D. A pressing portion 15d is formed at the left end of the upper frame sealing member 15c, and a contact member 15e is fixed to the upper surface of the upper frame sealing member 15c.
[0032] When the door panel D comes into contact with the left panel member P, the pressing portion 15d of the upper frame sealing member 15c is pressed by the upper closing portion 5 of the panel member P, as shown in Figure 4. The upper frame sealing member 15c is then displaced upward by being pressed to the right side, which is the side of the upper frame 11, against the biasing force of the biasing link 15b. As a result, the contact member 15e comes into contact with the rail 2, and the gap between the upper frame 11 and the rail 2 is closed.
[0033] In this embodiment, the upper frame 11 of the door panel D is provided with a locking mechanism 16 that can restrict the rotational displacement of the closed door body 20 when the door panel D is in a movable state (a state in which it is not in contact with the left panel member P as shown in Figure 3). As shown in Figures 3 to 6, the locking mechanism 16 is composed of components such as a bracket 61, a fixing pin 62, a lifting member 63, a movable pin 64, a compression spring 65, a locking pin 66, a follow member 67, and a guide member 68.
[0034] As shown in Figures 3 and 4, the bracket 61 is fixed to the left end of the upper frame 13. The bracket 61 has two plate-like parts that are arranged parallel to each other in the front-rear direction, and a first elongated hole 61a is formed in the plate-like parts along the vertical direction. A fixing pin 62 is fixed below the first elongated hole 61a in the bracket 61.
[0035] A cylindrical lifting member 63 is provided between the plate-shaped portions of the bracket 61 so as to be displaceable in the vertical direction. A U-shaped follow member 67 is fixed to the upper end of the lifting member 63. A movable pin 64 is fixed to the upper part of the lifting member 63, and a second elongated hole 63a is formed below the movable pin 64 in the lifting member 63, extending in the vertical direction.
[0036] As shown in Figures 5 and 6, the fixed pin 62 is inserted through the second elongated hole 63a of the lifting member 63, and the movable pin 64 is inserted through the first elongated hole 61a of the bracket 61. A compression spring 65 is interposed between the fixed pin 62 and the movable pin 64. As a result, the lifting member 63 is provided to move up and down between the plate-shaped parts of the bracket 61 and is biased upward by the biasing force of the compression spring 65. When the movable pin 64 moves closer to or further away from the fixed pin 62, its vertical movement is guided by guide members 68 connected to both the movable pin 64 and the fixed pin 62, respectively.
[0037] As shown in Figures 3 to 6, a cylindrical lock pin 66 extending downward is fixed to the lower end of the lifting member 63. A conical tapered portion 66a is formed at the lower end of the lock pin 66. In the door panel D, a lower plate 11a is provided on the lower surface of the upper frame 11. A hole 11b is opened below the lock pin 66 in the lower plate 11a.
[0038] On the other hand, as shown in Figures 3 to 6, an upper plate 22 is provided on the upper surface of the door body 20. When the door body 20 is closed, a lock hole 22a is opened in the upper plate 22 at a location below the hole 11b. Furthermore, an inclined member 23 is provided on the door body 20 on the closed side (left side in Figures 5 and 6) of the lock hole 22a. The upper surface of the inclined member 23 has an inclined surface that slopes downward toward the rear.
[0039] As shown in Figures 3 and 5, when the door panel D is movable, the upper frame sealing member 15c is located downwards, so the lifting member 63 is biased upward by the biasing force of the compression spring 65, and the following member 67 comes into contact with the upper frame sealing member 15c. In other words, when the door panel D is movable, the upper frame sealing member 15c pushes the lifting member 63 downwards against the biasing force of the compression spring 65.
[0040] As the lifting member 63 is pushed down, the lock pin 66 is positioned downward. As a result, the lower end of the lock pin 66 extends downward from the hole 11b and is inserted into the lock hole 22a. Because the lock pin 66 is inserted into the lock hole 22a formed in the door body 20, the rotational displacement of the door body 20 is restricted by the lock mechanism 16. As shown in Figures 3 and 5, the position in which the lock pin 66 is positioned downward is referred to as the "restricting position" of the lock mechanism 16.
[0041] When the door panel D comes into contact with the left panel member P, the upper frame sealing member 15c is displaced upward as shown in Figure 4. As a result, the lifting member 63 and the lock pin 66 are displaced upward by the biasing force of the compression spring 65. As a result, the lower end of the lock pin 66 is pulled out of the lock hole 22a and retracts above the hole 11b. Since the lock pin 66 is disengaged from the lock hole 22a formed in the door body 20, the restriction of rotational displacement of the door body 20 by the lock mechanism 16 is released. As shown in Figures 4 and 6, the position in which the lock pin 66 is positioned upward is described as the "open position" of the lock mechanism 16.
[0042] As described above, in the door panel D according to this embodiment, the locking mechanism 16 is variable between an open position in which the locking pin 66 is positioned upward, allowing rotational displacement of the door body 20 in the closed state, and a restricting position in which the locking pin 66 is positioned downward, restricting rotational displacement of the door body 20 in the closed state.
[0043] In this embodiment, the locking mechanism 16 in the restricting position allows the door body 20 to close when it is open. Specifically, as shown in Figure 7(a), for example, when the door body 20 is open and the door panel D is separated from the left panel member P, the lock pin 66 is positioned downward in the restricting position. At this time, when the door body 20 attempts to close, as shown in Figure 7(b), the upper plate 22 of the door body 20 comes into contact with the tapered portion 66a of the lock pin 66, causing the lock pin 66 to retract upward.
[0044] Furthermore, the lock pin 66 is pushed upward by the inclined surface of the inclined member 23, and when the door body 20 is in the closed position, the lock pin 66 is inserted into the lock hole 22a as shown in Figure 7(c). As a result, the rotational displacement of the door body 20 is restricted by the lock mechanism 16.
[0045] As described above, in this embodiment, a tapered portion 66a is formed at the lower end of the lock pin 66, and an inclined member 23 having an inclined surface on the closing side of the lock hole 22a is provided, thereby allowing the lock mechanism 16 in the restricting position to close the door body 20 in the open position. As a result, when the door body 20 is in the open position, the door panel D can move away from the panel member P, and the door body 20 can be closed even when the lock mechanism 16 changes from the open position to the restricting position.
[0046] Furthermore, in the door panel D according to this embodiment, the lock pin 66 of the lock mechanism 16 is made movable in relation to the door body 20 in conjunction with the vertical movement of the upper frame sealing member 15c. This allows the lock mechanism 16 to be opened in conjunction with the closing of the upper gap of the door panel D by the upper frame sealing member 15c.
[0047] [Second Embodiment] Next, the configuration of the door panel according to the second embodiment of the present invention will be described using Figures 8 and 9. The door panel according to this embodiment has a different locking mechanism configuration compared to the door panel D according to the first embodiment. For this reason, in the following description, components common to the door panel D according to the first embodiment will be denoted by the same reference numerals and detailed explanations will be omitted, and the differences between them will be the focus of the description.
[0048] In the door panel according to this embodiment, the upper frame 11 is provided with a locking mechanism 106 capable of restricting the rotational displacement of the closed door body 20 when the door panel is movable. As shown in Figure 8, the locking mechanism 106 is composed of components such as a bracket 161, a fixing pin 162, a lifting member 163, a movable pin 164, a compression spring 165, a locking pin 166, a follow member 167, and a guide member 168.
[0049] The bracket 161 is fixed to the frame body inside the upper frame 11. The bracket 161 has two plate-like parts that are arranged parallel to each other in the front-rear direction, and a first elongated hole 161a is formed in the plate-like parts along the vertical direction. A fixing pin 162 is fixed below the first elongated hole 161a in the bracket 161.
[0050] A cylindrical lifting member 163 is provided between the plate-shaped portions of the bracket 161 so as to be displaceable in the vertical direction. A follow member 167, which has a U-shaped cross-section, is fixed to the upper end of the lifting member 163. A movable pin 164 is fixed to the upper part of the lifting member 163, and a second elongated hole 163a is formed below the movable pin 164 in the lifting member 163, extending in the vertical direction.
[0051] As shown in Figure 8, the fixed pin 162 is inserted through the second elongated hole 163a of the lifting member 163, and the movable pin 164 is inserted through the first elongated hole 161a of the bracket 161. A compression spring 165 is interposed between the fixed pin 162 and the movable pin 164. As a result, the lifting member 163 is provided to move up and down between the plate-shaped parts of the bracket 161 and is biased upward by the biasing force of the compression spring 165. When the movable pin 164 moves closer to or further away from the fixed pin 162, its vertical movement is guided by guide members 168 connected to the movable pin 164 and the fixed pin 162, respectively.
[0052] As shown in Figure 8, a cylindrical lock pin 166 extending downward is fixed to the lower end of the lifting member 163. An inclined surface 166a is formed at the lower end of the lock pin 166, which slopes downward toward the rear on the opening side of the door body 20. By inserting a rotation restricting member 169 through the lifting member 163 and the lock pin 166, the rotation of the lock pin 166 around its axis is restricted. In the door panel, a lower plate 11a is provided on the lower surface of the upper frame 11. A hole 11b is opened below the lock pin 166 in the lower plate 11a.
[0053] On the other hand, an upper plate 22 is provided on the upper surface of the door body 20. When the door body 20 is closed, a lock hole 22a is opened in the upper plate 22 at a location below the hole 11b. As shown in Figure 8, when the door panel is movable, the upper frame sealing member 15c is located downward, so the lifting member 163 is biased upward by the biasing force of the compression spring 165, and the following member 167 comes into contact with the upper frame sealing member 15c. In other words, when the door panel is movable, the upper frame sealing member 15c pushes the lifting member 163 downward against the biasing force of the compression spring 165.
[0054] As the lifting member 163 is pushed down, the lock pin 166 is positioned downward. As a result, the lower end of the lock pin 166 extends downward from the hole 11b and is inserted into the lock hole 22a. Because the lock pin 166 is inserted into the lock hole 22a formed in the door body 20, the rotational displacement of the door body 20 is restricted by the lock mechanism 106.
[0055] When the door panel comes into contact with the left panel member, the upper frame sealing member 15c is displaced upward. As a result, the lifting member 163 and the lock pin 166 are displaced upward by the biasing force of the compression spring 165. As a result, the lower end of the lock pin 166 is pulled out of the lock hole 22a and retracts above the hole 11b. Since the lock pin 166 is disengaged from the lock hole 22a formed in the door body 20, the restriction of rotational displacement of the door body 20 by the lock mechanism 106 is released.
[0056] As described above, in the door panel according to this embodiment, the locking mechanism 106 is variable between an open position in which the locking pin 166 is positioned upward, allowing rotational displacement of the door body 20 in the closed state, and a restricting position in which the locking pin 166 is positioned downward, restricting rotational displacement of the door body 20 in the closed state.
[0057] In this embodiment, the locking mechanism 106 in the restricting position allows the door body 20 to close when it is open. Specifically, as shown in Figure 9(a), for example, when the door panel separates from the left panel member while the door body 20 is open, the lock pin 166 is positioned downward in the restricting position. When the door body 20 attempts to close, as shown in Figure 9(b), the upper plate 22 of the door body 20 contacts the inclined surface 166a of the lock pin 166, causing the lock pin 166 to retract upward. Furthermore, when the door body 20 is closed, the lock pin 166 is inserted into the lock hole 22a, as shown in Figure 9(c). As a result, the rotational displacement of the door body 20 is restricted by the locking mechanism 106.
[0058] Thus, in this embodiment, by forming an inclined surface 166a at the lower end of the lock pin 166, the lock mechanism 106 in the restricting position is configured to allow the door body 20 in the open position to close. As a result, when the door body 20 is in the open position, the door panel can move away from the panel member P, and even when the lock mechanism 106 changes from the open position to the restricting position, the door body 20 can be closed.
[0059] Furthermore, in the door panel according to this embodiment, the lock pin 166 of the lock mechanism 106 is restricted from rotating around its axis by the rotation restricting member 169. This makes it possible to always face the inclined surface 166a toward the open side of the door body 20.
[0060] [Third Embodiment] Next, the configuration of the door panel D according to the third embodiment of the present invention will be described using Figures 10 to 12. For the door panel D according to this embodiment as well, components common to the door panel D according to the first embodiment will be denoted by the same reference numerals, and detailed explanations will be omitted. The explanation will focus on the differences between the two embodiments.
[0061] In the door panel according to this embodiment, the upper frame 11 is provided with a locking mechanism 206 capable of restricting the rotational displacement of the closed door body 20 when the door panel is movable. As shown in Figure 11, the locking mechanism 206 is composed of a support plate 261, rod support members 262 and 262, a pressing rod 263, a compression spring 264, a first pin 265, a rotating member 266, a second pin 267, a locking pin 268, and a guide tube 269, among other components.
[0062] In the locking mechanism 206, the support plate 261 is fixed inside the upper frame 11, and the two rod support members 262-262 are fixed to the support plate 261. A pressing rod 263 is inserted through the rod support members 262-262 so as to be displaceable in the horizontal direction. The left end of the pressing rod 263 extends outward from the left end surface of the door panel D.
[0063] A compression spring 264 is interposed between the middle portion of the pressing rod 263 and the left rod support member 262, and the pressing rod 263 is biased to the left by the biasing force of the compression spring 264. A first pin 265 is provided at the middle portion of the pressing rod 263, intersecting with the pressing rod 263.
[0064] A rotatable member 266, which can rotate around a pivot axis A, is provided above the pressing rod 263. The rotatable member 266 has two plate sections that sandwich the pressing rod 263, and a first elongated hole 266a is opened in the plate section along the vertical direction, and a second elongated hole 266b is opened along the horizontal direction. A first pin 265 is inserted through the first elongated hole 266a, and a second pin 267 is inserted through the second elongated hole 266b.
[0065] The second pin 267 extends forward of the rotating member 266 and intersects with a rectangular prism-shaped lock pin 268, which is provided inside a rectangular tube-shaped guide tube 269 so as to be vertically displaceable. A guide hole 269a is formed in the guide tube 269, and the second pin 267 is inserted through the guide hole 269a. As shown in Figures 11 and 12, an inclined surface 268a is formed at the lower end of the lock pin 268, which slopes downward toward the rear on the opening side of the door body 220.
[0066] In this embodiment, an upper plate 222 is provided on the upper surface of the door body 220. When the door body 220 is closed, an insertion hole 222a is opened in the upper plate 222 at a location below the lock pin 268. A regulating member 223 is fixed below the insertion hole 222a, and a lock hole 223a is opened in the regulating member 223 at the same position as the insertion hole 222a.
[0067] In the initial state of the locking mechanism 206, as shown in Figure 11(a), the pressing rod 263 is extended to the left by the biasing force of the compression spring 264. At this time, the lock pin 268 is positioned downward. As a result, the lower end of the lock pin 268 is inserted into the lock hole 223a through the insertion hole 222a. Because the lock pin 268 is inserted into the lock hole 223a formed in the door body 220, the rotational displacement of the door body 220 is restricted by the locking mechanism 206.
[0068] As shown in Figure 11(b), when the door panel D comes into contact with the adjacent member B on the left side (for example, a panel member or a wall), the pressing rod 263 is pushed to the right against the biasing force of the compression spring 264. This causes the rotating member 266 to rotate counterclockwise around the pivot axis A, pushing up the second pin 267 and displacing the lock pin 268 upward.
[0069] Therefore, the lower end of the lock pin 268 is withdrawn from the lock hole 223a. As the lock pin 268 disengages from the lock hole 223a formed in the door body 220, the restriction on the rotational displacement of the door body 220 by the lock mechanism 206 is released.
[0070] As described above, in the door panel according to this embodiment, the locking mechanism 206 is variable between an open position in which the locking pin 268 is positioned upward, allowing rotational displacement of the door body 220 in the closed state, and a restricting position in which the locking pin 268 is positioned downward, restricting rotational displacement of the door body 220 in the closed state.
[0071] In this embodiment, the locking mechanism 206 in the restricting position allows the door body 220 to close when it is open. Specifically, for example, when the door body 220 is open and the door panel D is separated from the adjacent member B on the left side, the lock pin 268 is positioned downward in the restricting position. When the door body 220 attempts to close, the upper plate 222 of the door body 220 contacts the inclined surface 268a of the lock pin 268, pushing the lock pin 268 upward. Furthermore, when the door body 220 is closed, the lock pin 268 is inserted into the lock hole 223a. As a result, the rotational displacement of the door body 220 is restricted by the locking mechanism 206.
[0072] Thus, in this embodiment, by forming an inclined surface 268a at the lower end of the lock pin 268, the lock mechanism 206 in the restricting position is configured to allow the door body 220 in the open position to close. As a result, when the door body 220 is in the open position, the door panel D can move away from the adjacent member B, and even when the lock mechanism 206 changes from the open position to the restricting position, the door body 220 can be closed.
[0073] Furthermore, in the door panel according to this embodiment, the lock pin 268 of the locking mechanism 206 is shaped like a rectangular prism, and the guide tube 269 that guides the lock pin 268 is shaped like a rectangular tube, thereby restricting the rotation of the lock pin 268 around its axis. This makes it possible to always face the inclined surface 268a toward the open side of the door body 220.
[0074] [Differentiation] The above embodiments can be modified as appropriate, as shown in the following modifications. Note that each modification described herein may be applied in combination with other modifications, to the extent that it does not result in inconsistencies.
[0075] In the door panel according to the present invention, the side frame may be provided on one side of the door panel's side edge or on both sides. In this case, it is preferable to provide a locking mechanism on the door-edge side of the upper frame, or on the side frame on the door-edge side. The locking mechanism may also be provided on either the upper frame or the side frame of the door panel's frame. Furthermore, if the locking mechanism in the restricting position is configured to allow the door body to be closed in the open position, the inclined surface can be formed on either the locking pin or the door body, or on both.
[0076] Furthermore, in the first embodiment described above, the locking mechanism 16 is configured as a mechanism independent of the restricting mechanism 30, but it is also possible to configure the locking mechanism and the restricting mechanism to be linked. That is, it is also possible to connect the operating unit 31 and the locking mechanism 16 inside the frame 10 in the first embodiment, so that the locking mechanism is displaced to a restricted position / open position in accordance with the operation of the operating unit 31. Even in this case, by making the locking pin retractable to allow the closing of the door body in the open position, the locking mechanism in the restricted position can allow the closing of the door body in the open position.
[0077] Furthermore, the cross-sectional shape of the lock pin is not limited to the circular shape shown in the first and second embodiments, or the angular shape shown in the third embodiment, but can be an elliptical shape, a polygonal shape, or other shapes. In the case where an inclined surface is formed only on the door body and not on the lock pin, the lock pin can rotate around its axis. In this case, the tip shape of the lock pin can be a conical tapered shape, a hemispherical shape, or other shapes. Also, as in the door panel according to the third embodiment, it is possible to have a configuration where the sealing member for closing the gap on the upper side of the door panel and the locking mechanism are not interlocked. [Explanation of symbols]
[0078] 1. Partition structure 2. Rail 3 Panel main body 4 End panel 4a Pressing part 5 Upper closing part 6 Lower closing part 7 Hanging support member 10 Frame 11 Upper frame 11a Lower plate 11b Hole 12 Side frame 13 Top frame 14 Side frame 15 Upper frame closing section 15a Support frame 15b Biasing link 15c Upper frame sealing member 15d Pressing part 15e Contact member 16 Locking mechanism (first embodiment) 20 Door body 21 Door knob 22 Top plate 22a Locking hole 23 Inclined member 26 Door sealing member 30 Regulatory mechanism 31 Operating section 32 Lifting rod 33 Side frame sealing member 61 Bracket 61a First elongated hole 62 Fixing pin 63 Lifting member 63a Second elongated hole 64 Movable pin 65 Compression spring 66 Locking pin 66a Tapered section 67 Follower member 68 Guide member 106 Locking mechanism (second embodiment) 161 Bracket 161a First elongated hole 162 Fixing pin 163 Lifting member 163a Second elongated hole 164 Movable pin 165 Compression spring 166 Locking pin 166a Inclined surface 167 Following member 168 Guide member 169 Rotation restricting member 220 Door body 222 Top plate 222a Through hole 223 Regulating member 223a Lock hole 206 Locking mechanism (third embodiment) 261 Support plate 262 Rod support member 263 Compression rod 264 Compression spring 265 First pin 266 Rotating member 266a First slot 266b Second slot 267 Second pin 268 Locking pin 268a Inclined surface 269 Guide tube 269a Guide hole C Ceiling F Floor P Panel component D Door panel W1 First wall W2 Second wall B Adjacent member
Claims
1. A door panel that is suspended from a rail installed on the ceiling and is movable along the rail, It comprises a frame and a door body that is rotatably mounted to the frame, The frame comprises an upper frame that forms the upper edge of the door panel and at least one side frame that forms the side edge of the door panel. The door body is assembled to one of the side frames via a hinge, thereby enabling the lower region of the upper frame to be opened and closed. The frame is provided with a locking mechanism that restricts the rotational displacement of the door body when the door panel is movable. The locking mechanism is variable between an open position that allows rotational displacement of the door body in the closed state and a restricting position that restricts rotational displacement of the door body in the closed state. The locking mechanism in the restrictive position allows the door body to be closed in the open position. The locking mechanism includes a locking pin that is movable forward and backward relative to the door body. When the locking mechanism is in the open position, the locking pin retracts from the side of the door body. When the locking mechanism is in the restricting position, the locking pin extends toward the door body and is inserted into the locking hole formed in the door body. The tip of the locking pin has an inclined surface formed on the open side of the door body, thereby allowing the locking mechanism to close the door body when it is in the restricted position. An upper frame sealing member is provided on the upper part of the upper frame, projecting to the side of the door panel so as to be vertically displaceable, thereby closing the gap between the upper frame and the ceiling. The upper frame sealing member is configured to be displaced upward by being pressed against the upper frame and to come into contact with the rail. The locking pin is made movable relative to the door body in accordance with the vertical movement of the upper frame sealing member, in a door panel.
2. The door panel according to claim 1, wherein the rotation of the locking pin around its axis is restricted.
3. A door panel that is suspended from a rail installed on the ceiling and is movable along the rail, It comprises a frame and a door body that is rotatably mounted to the frame, The frame comprises an upper frame that forms the upper edge of the door panel and at least one side frame that forms the side edge of the door panel. The door body is assembled to one of the side frames via a hinge, thereby enabling the lower region of the upper frame to be opened and closed. The frame is provided with a locking mechanism that restricts the rotational displacement of the door body when the door panel is movable. The locking mechanism is variable between an open position that allows rotational displacement of the door body in the closed state and a restricting position that restricts rotational displacement of the door body in the closed state. The locking mechanism in the restrictive position allows the door body to be closed in the open position. The locking mechanism includes a locking pin that is movable forward and backward relative to the door body. When the locking mechanism is in the open position, the locking pin retracts from the side of the door body. When the locking mechanism is in the restricting position, the locking pin extends toward the door body and is inserted into the locking hole formed in the door body. A door panel wherein an inclined surface is formed on the door body on the side of the lock hole that is closed, thereby allowing the door body to be closed when the locking mechanism is in a restricting position.
4. A door panel according to any one of Claims 1 to 3, The system comprises at least one other panel that is movable along the rail, A partition structure in which the door panel and the other panel are arranged in a continuous manner.