Opening device
The vertical sliding window design enhances usability by enabling firefighters to open locked shoji screens through a simple outer lever operation, addressing the usability issues of conventional unlocking mechanisms.
Patent Information
- Application Number
- JP2025022048
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2025-02-14
- Publication Date
- 2026-08-26
AI Technical Summary
Conventional unlocking mechanisms for emergency access to locked shoji screens, such as those used by firefighters, suffer from poor usability, requiring time-consuming trial and error and lack of familiarity among users.
A vertical sliding window design featuring a vertical frame, an opening restriction arm, and an outer lever that allows the vertical frame slider to be moved up and down, detaching the vertical frame auxiliary from the slider to disable all mechanisms obstructing opening, thereby simplifying emergency access.
The design improves usability by allowing firefighters to quickly and easily open locked shoji screens by operating a single outer lever, bypassing complex unlocking procedures and saving precious time in emergencies.
Smart Images
Figure 2026136507000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to an opening device such as a vertical sliding window.
Background Art
[0002] Conventionally, an opening device (Patent Document 1) may be provided with an external handle so that a firefighter or the like can open a locked shoji from the outside in an emergency such as a fire. The shoji is opened by operating the external handle by a firefighter.
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0004] An unlocking mechanism using an external handle or an external lever is used, but the conventional unlocking mechanism has poor usability. An object of the present invention is to provide an opening device with improved usability of an unlocking mechanism.
Means for Solving the Problems
[0005] The present invention includes a shoji, a vertical frame, an opening restriction arm, and an outer lever. The shoji has a vertical frame, and the vertical frame has a vertical frame auxiliary and a vertical frame slider. The vertical frame auxiliary is in a fixed position and is loosely fitted to the vertical frame slider. The vertical frame slider slides in the vertical direction with respect to the vertical frame. The opening restriction arm restricts the opening width between the vertical frame and the vertical frame. One end is rotatably attached to the vertical frame auxiliary, and the other end is rotatably attached to the vertical frame. The outer lever is provided on the outdoor side and can slide the vertical frame slider. When the vertical frame slider moves up and down to reach a predetermined position of the vertical frame auxiliary, the vertical frame auxiliary can be detached from the vertical frame slider. The problem is solved by providing an opening device characterized by this. [Effects of the Invention]
[0006] This invention provides an opening device with improved usability of the unlocking mechanism. [Brief explanation of the drawing]
[0007] [Figure 1] Figure 1 is an interior view of the vertical sliding window 1 (opening device). Figure 1(A) is an interior view (with the sash lock locked). Figure 1(B) is an interior view (with the sash lock unlocked). [Figure 2] Figure 2 is an interior view illustrating the unlocking of the vertical sliding window 1 (opening device). Figure 2(A) is an interior view when the window is fully closed. Figure 2(B) is an interior view when the window 3 is half-open after unlocking. [Figure 3] Figure 3 is an explanatory diagram of the lock pin 56, where Figure 3(A) is an interior view of the shoji screen 3, Figure 3(B) is a cross-sectional view between A and B attached to Figure 3(A), Figure 3(C) is an explanatory diagram of the lock pin 56 mounting structure, and Figure 3(D) is a plan view of the fixing plate. [Figure 4] Figure 4 is an explanatory diagram of the lock pin receiver 63, where Figure 4(A) is an internal view of the frame 2, and Figure 4(B) is a cross-sectional view between B and C attached to Figure 4(A). [Figure 5] Figure 5 is an explanatory diagram showing the state in which the vertical frame 31 in Figure 3(B) fits into the vertical frame 21 in Figure 4(B), and the shoji screen 3 is closed. [Figure 6] Figure 6 is an explanatory diagram of the locking mechanism by the sliding door locking operation unit 24. [Figure 7] Figure 7 is an explanatory diagram of the engagement mechanism between the tip 371 of the handle 37 and the pocket 28. [Figure 8] Figure 8 is an explanatory diagram of the opening limiting arm 8. Figure 8(A) is a plan view of the opening limiting arm 8. Figure 8(B) is a cross-sectional view of the shoji screen 3 in a half-open state. [Figure 9] Figure 9 is an explanatory diagram of the external lever 7. Figure 9(A) is an external view of the vertical sliding window 1 (opening device) when locked, and Figure 9(B) is an external view of the vertical sliding window 1 (opening device) when unlocked. [Figure 10]Figure 10 is an explanatory diagram of the movement of the vertical frame slider 71. Figure 10(A) shows the state before moving the outer lever 7. Figure 10(B) illustrates how the fixing pin 712 moves as the vertical frame slider 71 moves after the outer lever 7 has been moved. [Figure 11] Figure 11 is an explanatory diagram showing how the vertical frame support 5 is separated by the external lever 7, disabling all mechanisms that would otherwise obstruct the opening of the sliding door 3. Figure 11(A) is an explanatory diagram of the state of the vertical frame support 5 in normal circumstances and is a cross-sectional view corresponding to Figure 10(A). Figure 11(B) is a cross-sectional view corresponding to Figure 10(B), showing the state in which the vertical frame support 5 has been detached by moving the external lever 7 in an emergency. Figure 11(C) is an enlarged view of the area around the release slide hole 51 of the vertical frame support 5. Figure 11(D) is a front view of the vertical frame support 5 after it has been assembled. [Figure 12] Figure 12 is a cross-sectional view of the section D shown in Figure 11(D). [Figure 13] Figure 13 is an explanatory diagram of the release mechanism from the outside. Figure 13(A) is an explanatory diagram of the various components attached to the vertical frame support. Figure 13(B) is a diagram of the state of the vertical frame slider 71 before operation of the outer lever 7, and Figure 13(C) is a diagram of the state of the vertical frame slider 71 after operation of the outer lever 7. Figure 13(D) is an explanatory diagram of the process by which the vertical frame slider 71 (vertical frame 31) and the vertical frame support 5 separate. [Modes for carrying out the invention]
[0008] The specific configuration is not limited to these embodiments, and any design changes or other modifications that do not depart from the spirit of the present invention are also included.
[0009] [Examples] This example shows a case where the opening device is a vertical sliding window 1. (Interior view of opening device 1) FIG. 1 is an internal view of the vertical sliding window 1 (opening device). FIG. 1(A) is an internal view (when the shoji lock is locked). FIG. 1(B) is an internal view (when the shoji lock is unlocked). Actually, the members that appear as an internal view include the shoji 3 (including the vertical stile 31 and the vertical frame 21), the handle 37, and the shoji lock operation part 24 in FIG. 1(B). FIG. 1(A) shows the lock pin 56, the lock pin receiver 63, the handle rotation shaft 372, the pocket 28, etc. that do not actually appear as an internal view.
[0010] There are several mechanisms that inhibit the opening of the shoji 3, and each mechanism has various unlocking and removal specifications. In an emergency such as a fire, a firefighter who first comes into contact with the vertical sliding window 1 (opening device) has no idea how to remove these and is forced to try and error. And the firefighter will waste time for unlocking and removal.
[0011] (Outer lever) Various types of opening devices 1 are sold by various manufacturing companies and installed in buildings. It is impossible for firefighters to be familiar with the unlocking procedures of these mechanisms. Also, if a firefighter unlocks the mechanisms that inhibit opening one by one in order, the precious time given to the firefighter will be wasted. In particular, the opening restriction arm 8 described in the following embodiments maintains the shoji 3 in a semi-open state, and firefighters rarely know how to remove the opening restriction arm 8. The vertical sliding window 1 (opening device) of the embodiment is a user-friendly opening device that invalidates all the mechanisms that inhibit opening only by operating the outer lever 7.
[0012] Hereinafter, the mechanism that inhibits opening of the embodiment and the outer lever 7 that invalidates it will be described. (Members that cannot be seen in the internal view of the opening device 1 in the locked and closed state) The handle 37 rotates around the handle rotation shaft 372 provided on the vertical stile contact surface 311. The tip 371 of the handle 37 is swallowed into the pocket 28 opened on the inner peripheral side prospective surface 212 of the vertical frame 21 as the handle 37 rotates, integrating the vertical frame 21 and the vertical stile 31, and preventing the shoji 3 from opening. Therefore, when the handle 37 is locked with the shoji 3 in the closed state, the tip 371 enters the vertical frame 21 side and becomes invisible. The shoji lock operation unit 24 shown in FIG. 1(A) is a member attached to the protruding plate 29 attached to the vertical frame 21. The shoji lock operation unit 24 is pivotally supported by a rotating shaft 252 provided on the protruding plate 29 and rotates. This shoji lock operation unit 24 moves the lock pin receiver 63 attached to the vertical frame 21 by a mechanism described later, removes the lock pin 56 attached to the vertical frame 31 side from the lock pin receiver 63, and releases the lock. The shoji lock operation unit 24 shown in FIG. 1(A) is in the locked position, and the shoji lock operation unit 24 shown in FIG. 1(B) is in the unlocked position.
[0013] (Unlocking and semi-opening of the shoji) FIG. 2 is an internal view for explaining the unlocking of the vertical sliding window 1 (opening device). FIG. 2(A) is an internal view when fully closed. The user performs two operations to unlock the vertical sliding window 1 (opening device). The first is the unlocking of the shoji lock operation unit 24 described in FIG. 1(B). The user rotates the shoji lock operation unit 24 in the direction of the arrow shown in FIG. 2(A) to unlock it. The second is the unlocking of the handle 37. By rotating the handle 37 in the direction of the arrow, the tip 371 of the handle 37 comes out of the pocket 28 provided on the inner peripheral side prospective surface 212 of the vertical frame 21 and unlocks.
[0014] As shown in FIG. 2(B), when in the semi-open state, the opening restriction arm 8 becomes visible. The opening restriction arm 8 holds the shoji 3 in the semi-open state for ventilation etc. The opening restriction arm 8 can release the semi-open state and can set the shoji 3 to the fully open state or the closed state.
[0015] (Locking and opening restriction arm) The embodiment relates to a device for forcibly opening the shoji 3 from the outside by a firefighter etc. in an emergency. The mechanism that prevents the opening of the shoji screen 3 in the opening device 1 of the embodiment may be various other than the opening prevention mechanism specifically described herein, such as a stopper to prevent the screen from swinging open. This specification explains the principle that enables forced opening using a typical mechanism that hinders opening as an example. Even for mechanisms not described in detail in the embodiments, those skilled in the art will be able to open the sliding door 3 by operating the external lever 7, thereby releasing all locking mechanisms, etc., when the mechanism is installed according to the principle.
[0016] Inhibiting mechanism; locking mechanism by sliding door lock operating unit 24 (Lock pin 56) The locking mechanism provided by the shoji screen locking operation unit 24 is used when locking the shoji screen 3. Figure 3 is an explanatory diagram of the lock pin 56, where Figure 3(A) is an interior view of the shoji screen 3, and Figure 3(B) is a cross-sectional view between A and B attached to Figure 3(A). A vertical frame support 5 is attached to the vertical frame depth surface 312. The vertical frame support 5 is a component to which a lock pin 56 is attached. Figure 3(C) is an explanatory diagram of the lock pin 56 attachment structure, and Figure 3(D) is a plan view of the fixing plate. The lock pin 56 is provided on the fixing plate 57 and is fixed to the vertical frame support 5 by screws (not shown) through a pair of fastening holes 571 in the fixing plate 57. The tip of the lock pin 56 has an enlarged diameter section 561.
[0017] (Lock pin receiver 63) Figure 4 is an explanatory diagram of the lock pin receiver 63, where Figure 4(A) is an internal view of the frame 2, and Figure 4(B) is a cross-sectional view of the area between B and C shown in Figure 4(A). The lock pin receiver 63 is attached to the interlocking rod 6, which is provided on the inner circumference surface 212 of the vertical frame 21. The lock pin receiver 63 is moved by the interlocking rod 6. This will be explained in detail using Figures 5 and 6.
[0018] Figure 5 is an explanatory diagram showing the state in which the vertical frame 31 of Figure 3(B) fits into the vertical frame 21 of Figure 4(B), and the shoji screen 3 is closed. The lock pin receiver 63, which is attached to the inner circumference surface 212 of the vertical frame 21, is attached to the interlocking rod 6, and the lock pin receiver 63 moves as the interlocking rod 6 moves up and down by a mechanism described later. The lock pin 56 is fixed to the vertical frame auxiliary 5 via a fixing plate 57 and does not move.
[0019] Figure 6 is an explanatory diagram of the locking mechanism by the sliding door lock operating unit 24. In the locked state, the sliding door lock operating unit 24 has its main body facing downwards with its rotation axis 252 facing upwards. At this time, the lock pin 56 is located on the upper end side of the lock pin receiver 63. A groove is provided on the inner circumferential side surface 66 of the lock pin receiver 63, and the groove consists of a restraining portion 65 with a narrow groove width and an open portion 64 with an open side and a lock pin entry opening 67. As long as the lock pin 56 is located in the opening 64 and the sliding door lock operation unit 24 is in the unlocked state, the lock pin 56 can move in and out of the lock pin entry opening 67 in conjunction with the opening and closing operation of the sliding door 3.
[0020] (Shoji lock operation part 24) As shown in Figure 6, the sliding door lock operating unit 24 rotates around the rotation axis 252. The rotation axis 252 of the sliding door lock operating unit 24 also serves as the axis for rotating the oval-shaped rotating plate 25. The rotating plate 25 is housed inside the vertical frame 21 and is not visible from the outside.
[0021] (Interlocking section 26) As shown by the dashed line in Figure 6, the rotating shaft 252 and the locking pin 56 do not move up or down during the locking and unlocking operations. The interlocking part 26 is a component provided in the area indicated by the dashed line. The interlocking part 26 is a component that connects the rotating plate 25 and the interlocking rod 6. The rotating plate 25 has one end that is coaxial with the rotation axis 252 of the sliding door lock operating part 24, and the other end has an engaging projection 251. The sliding door lock operating part 24, which shares the same rotation axis 252, is located on one side of the rotating plate 25, and the engaging projection 251 is provided protruding from the other side. The moving parts are the interlocking rod 6 and the lock pin receiver 63 fixed to the interlocking rod 6. As shown in the cross-sectional view, the interlocking unit 26 converts the movement of the sliding door lock operating unit 24, which rotates around the rotation axis 252, into translational motion, and moves the lock pin receiver 63, which is provided on the interlocking rod 6, in the vertical direction. The three diagrams illustrating the rotating plate 25 each illustrate the movement of the rotating plate 25 and the interlocking part 26. The engaging projection 251 (see cross-sectional view) protruding from the rotating plate 25 is provided to engage with the U-shaped groove 261 located at the tip of the interlocking part 26. When the rotating plate 25 rotates, the engaging projection 251 moves to slide along the U-shaped groove 261, converting the movement of the rotating plate 25 into translational motion. The interlocking unit 26 is connected to the interlocking rod 6 at its base end, and the vertical movement of the interlocking unit 26 is transmitted to the interlocking rod 6. As the interlocking rod 6 moves up and down, the lock pin receiver 63 also moves up and down. The tip of the lock pin 56 has an enlarged diameter portion 561. The width of the restraining portion 65 of the lock pin receiver 63 is narrower than the enlarged diameter portion 561. When the enlarged diameter portion 561 of the tip of the lock pin 56 enters the restraining portion 65, it becomes impossible to remove it from the restraining portion 65 because of the presence of the enlarged diameter portion 561.
[0022] Inhibiting mechanism: Engagement mechanism between the tip 371 of the handle 37 and the pocket 28 The second example of a mechanism that prevents opening is the engagement mechanism between the tip 371 of the handle 37 and the pocket 28. Figure 7 is an explanatory diagram of the engagement mechanism between the tip 371 of the handle 37 and the pocket 28. The tip 371 of the handle 37 can fit into the pocket 28, which is a recess provided on the vertical frame 21. As a result, the handle 37 attached to the vertical frame 31 and the vertical frame 21 engage and become one, locking them together.
[0023] The handle 37 is fixed to the vertical frame 31 as follows: The handle connecting member 54 is attached to the visible surface of the vertical frame auxiliary 5 of the vertical frame 31. The handle connecting member 54 is bent and overlaps with the trim 373 which forms one of the glass holding grooves. The handle rotation shaft 372 passes through the trim 373 and the handle connecting member 54, and holds the handle 37 so that it can rotate freely.
[0024] Inhibiting mechanism: Opening limiting arm 8 The third example of a mechanism that obstructs opening is the opening limiting arm 8. The opening limiting arm 8 is a mechanism installed in vertical sliding windows 1 and the like to improve ventilation, and is used to maintain the window open at a predetermined interval, as shown in Figure 2(B).
[0025] Figure 8 is an explanatory diagram of the opening limiting arm 8. Figure 8(A) is a plan view of the opening limiting arm 8. Figure 8(B) is a cross-sectional view of the sliding door 3 in a half-open state. The opening limiting arm 8 has an arm rotation pin hole 82. The arm rotation pin hole 82 is rotatably attached to an arm rotation pin 55 provided on the vertical frame auxiliary 5 located on the vertical frame depth surface 312. The tip of the arm rotation pin 55 has a bulge 551, which prevents the arm rotation pin 55 from coming out of the arm rotation pin hole 82. The diameter of the arm rotation pin 55 below the bulge 551 is smaller than the diameter of the arm rotation pin hole 82, which allows the opening limiting arm 8 to tilt diagonally as the sliding door 3 opens.
[0026] The opening limiting arm 8 has a sliding groove 81, the upper end of which is a large opening 812, and the lower end of which is an opening limiting position 811. The opening limiting arm 8 hangs down along the vertical frame surface 312 so as to hang from the arm rotation pin 55 when the sliding door 3 is fully closed. When the shoji screen 3 is fully closed, the limiting pin 27 of the vertical frame 21 fits into the large opening 812. When the opening limiting arm 8 is used, the sliding door 3 stops at a predetermined opening and cannot open any further. The limiting pin 27 passes through the sliding groove 81 from the large opening portion 812 and stops at the opening limiting position 811. When the limiting pin 27 enters the opening limiting position 811, the sliding door 3 is restricted (hindered) from opening any further. In this way, the opening limiting arm 8 restricts the sliding door 3 from opening beyond a predetermined limit. When cleaning the vertical sliding window 1 (opening device) without restricting its opening, the user opens the sash 3 by holding the handle 37. As a result, the limiting pin 27 moves to the opening restriction position 811 of the opening restriction arm 8. Because of the expanding diameter portion 271 of the limiting pin, the opening restriction arm 8 cannot be removed at the opening restriction position 811. At this point, the user finally grasps the gripping portion 84 of the opening restriction arm 8 and moves the arm to remove the limiting pin 27 from the small opening portion 813 of the opening restriction arm 8. With these operations, the opening restriction arm 8 detaches from the vertical frame 21, and the sash 3 becomes fully open.
[0027] Figure 9 is an explanatory diagram of the external lever 7. Figure 9(A) is an external view of the vertical sliding window 1 (opening device) when locked, and Figure 9(B) is an external view of the vertical sliding window 1 (opening device) when unlocked. The exterior lever 7 is attached to the exterior vertical frame surface 311 and is an upward-lifting type lever with a gripping portion 73 at its lower end. Figure 9(A) shows the state in which the sliding door 3 is closed and locked, and at this time the gripping portion 73 extends parallel to the vertical frame surface 311. The upper end of the exterior lever 7 is inserted into the interior of the vertical frame 31 through an opening (not shown), and the exterior lever can rotate around the exterior lever pivot axis 74 (not shown) by moving the gripping portion 73 upward.
[0028] (Unlocking in an emergency) The embodiment is an easy-to-use opening device 1 in which all mechanisms that would otherwise obstruct opening are disabled simply by operating the outer lever 7. Figure 10 is an explanatory diagram of the movement of the vertical frame slider 71. Figure 10(A) shows the state before moving the outer lever 7. Figure 10(B) illustrates how the vertical frame slider 71 moves in conjunction with the operation of the outer lever 7, causing the fixing pin 712 provided on the vertical frame slider 71 to move. The vertical frame slider 71 is moved by the outer lever 7. The vertical frame slider 71 is a component attached to the vertical frame depth surface 312 and is located on the inner circumference side of the vertical frame support 5. The fixing pin 712 is attached to the outer circumference side of the vertical frame slider 71. The vertical frame slider 71 in the embodiment is a long component that extends from almost the bottom end to near the top end of the vertical frame 31. When viewing the vertical frame 31 from the outer perimeter, the vertical frame support 5 is visible, but the vertical frame slider 71 is almost completely hidden by the vertical frame support 5, indicating that the two are in an overlapping positional relationship.
[0029] An interlocking pin 75 is erected below the vertical frame slider 71, and a groove at the tip of the outer lever 7 fits into this interlocking pin 75. The outer lever 7 is designed to rotate around an outer lever pivot axis 74 provided on the vertical frame 31. When the outer lever 7 is moved upward by a firefighter or the like, the interlocking pin 75 lowers, and the entire vertical frame slider 71 slides downward while the vertical frame support 5 remains stationary.
[0030] Figure 11 is an explanatory diagram showing how the vertical frame support 5 is separated by the external lever 7, thereby disabling all mechanisms that obstruct the opening of the shoji screen 3. As mentioned above, the vertical frame support 5 is somehow attached to a part of the mechanism that obstructs the opening of all shoji screens 3, and when the vertical frame support 5 is separated from the vertical frame 31, some of the components of the mechanism that obstructs the opening disappear, thereby disabling these obstructing mechanisms. Figure 11(A) is an explanatory diagram of the state of the vertical frame support 5 in normal conditions and is a cross-sectional view corresponding to Figure 10(A). Figure 11(B) is a cross-sectional view corresponding to Figure 10(B) and shows the state in which the vertical frame support 5 has been detached by moving the outer lever 7 in an emergency. Figure 11(C) is an enlarged view of the area around the release slide hole 51 of the vertical frame support 5. Figure 11(D) is a front view of the vertical frame support 5 after it has been assembled.
[0031] (Vertical frame support 5 and detachable sliding hole 51) Figure 11 is an explanatory diagram showing how the external lever 7 separates the mechanism, disabling all the mechanisms that would otherwise obstruct the opening of the sliding door 3. Figure 11(A) is an explanatory diagram showing the state of the vertical frame support 5 in normal operation. Figure 11(B) is a cross-sectional view of the section C attached to Figure 10(B), showing the state in which the vertical frame support 5 has been detached by moving the outer lever 7 in an emergency. Figure 11(C) is an enlarged view of the area around the release slide hole 51 of the vertical frame support 5. The vertical frame support 5 is provided with a release slide hole 51, which, as shown in Figure 11(C), is a hole consisting of a narrow retaining area 512 and a circular release area 511, with the diameter of the release area 511 being greater than the width of the retaining area 512. Before the external lever 7 is moved, the fixing pin 712 protrudes from the retaining area 512 of the release slide hole 51. The fixing pin 712 has an enlarged portion 7121 at its tip (lower side), and when the fixing pin 712 is in the retaining area 512, the fixing pin 712 cannot be removed from the release slide hole 51, and nothing particularly unusual happens. Figure 11(D) is a front view of the vertical frame support 5 after assembly. For illustrative purposes, biasing members 72 (leaf springs) that are hidden by the vertical frame support 5 are also shown with solid lines. The only parts that are actually visible are the release slide hole 51, shown with a thick solid line, and the enlarged portion 7121 of the fixing pin 712 protruding from the release slide hole 51.
[0032] In normal operation, when the external lever 7 is not being operated, the fixing pin 712 has an enlarged portion 7121 in the holding area 512 of the release slide hole 51 provided in the vertical frame auxiliary 5, so it cannot come out. The fixing pin 712 is the only component that connects the vertical frame support 5 and the vertical frame slider 71, and is also the only component that connects the vertical frame 31 and the vertical frame support 5. The tip (lower side) of the fixing pin 712 is an enlarged portion 7121. When the fixing pin 712 is in the holding area 512, the diameter of the enlarged portion 7121 of the fixing pin 712 is greater than the width of the holding area 512. Therefore, the vertical frame auxiliary 5 becomes one with the vertical frame slider 71 and does not separate, remaining in a fixed position as shown in Figure 11(A). However, in an emergency, when a firefighter moves the external lever 7, the vertical frame slider 71 moves in conjunction, and the fixing pin 712 moves to the release area 511 of the vertical frame support 5. In the release area 511, the diameter of the enlarged portion 7121 is smaller than the diameter of the circular release area 511, so the fixing pin 712 comes out of the release slide hole 51. The fixing pin 712 that was connecting the vertical frame support 5 to the vertical frame 31 detaches from the vertical frame support 5, causing the vertical frame support 5 to detach from the vertical frame 31.
[0033] (Summary of vertical frame support 5 and detachable slide hole 51) The vertical frame slider 71 is equipped with an interlocking pin 75 and is moved by the operation of the external lever 7. When the fixing pin 712 (enlarged portion 7121) of the vertical frame slider 71 is in contact with the surface of the vertical frame support 5, it is located in the holding area 512 of the release slide hole 51. When the vertical frame slider 71 moves and the fixing pin 712 comes into a release area 511 larger than the fixing pin 712 (enlarged portion 7121) of the release slide hole 51, the fixing pin 712 detaches from the vertical frame support 5, and the vertical frame support 5 separates from the vertical frame 31.
[0034] (Biasing member 72) Figure 12 is a cross-sectional view of the section D shown in Figure 11(D). To ensure more reliable detachment of the vertical frame support 5, biasing members 72 (leaf springs) are attached to both sides of the fixing pin 712 of the vertical frame slider 71. The biasing members 72 (leaf springs) constantly bias the vertical frame support 5 in the detachment direction, assisting the vertical frame support 5 to detach from the vertical frame 31 when the fixing pin 712 reaches the detachment area 511. The biasing member 72 may be a coil spring or anything else, as long as it can assist in the direction of detaching the vertical frame support 5.
[0035] As described above, a biasing member 72 is provided between the vertical frame support 5 and the vertical frame slider 71. The biasing member 72 constantly biases the vertical frame support 5 in a direction that detaches it, and when the fixing pin 712 of the vertical frame slider 71 reaches the detachment area 511 of the detachment slide hole 51 of the vertical frame support 5, the vertical frame support 5 detaches from the vertical frame slider 71.
[0036] (Release or disable of the component that obstructs opening) Figure 13 is an explanatory diagram showing how to release or disable the member that obstructs opening. Figure 13(B) shows the state of the vertical frame slider 71 before operating the external lever 7, and Figure 13(C) shows the state of the vertical frame slider 71 after operating the external lever 7. Below the vertical frame support 5 is a release slide hole 51. By rotating the outer lever 7, the vertical frame slider 71 moves, causing the fixing pin 712 of the vertical frame slider 71 to move to the release area 511 of the release slide hole 51. The vertical frame support 5 is then released when the fixing pin 712 is removed from the release slide hole 51. Figure 13(D) is an explanatory diagram illustrating the process of separating the vertical frame slider 71 (vertical frame 31) and the vertical frame support 5. Figure 13(D-1) corresponds to the state before operating the outer lever 7 in Figure 13(B), and Figure 13(D-2) corresponds to the state after operating the outer lever 7 in Figure 13(C). The vertical frame slider 71 is located below the vertical frame support 5 and only a portion of it is visible, but the diagram shows that only the fixing pin 712 attached to the vertical frame slider 71 is protruding from the release slide hole 51 provided in the vertical frame support 5. In Figures 13(B) and 13(D-1), which show the state before the outer lever 7 is rotated, the fixing pin 712 is fitted into the retaining area 512 located above the release slide hole 51, and since the diameter of the enlarged portion 7121 is larger than the width of the retaining area 512, it cannot be removed. Figures 13(C) and 13(D-2), which show the state after the outer lever 7 has been rotated, show that the fixing pin 712 has moved downwards due to the movement of the vertical frame slider 71 located on the inner circumference side of the vertical frame auxiliary 5. The fixing pin 712 slides through the release slide hole 51 provided in the vertical frame auxiliary 5 and moves until it is positioned in the release area 511.
[0037] Since the width of the detachment area 511 is larger than the diameter of the enlarged portion 7121 of the fixing pin 712, Figure 13(D-3) is an explanatory diagram showing the separation of the vertical frame auxiliary 5 from the vertical frame 31 (vertical frame slider 71). As shown in the diagram, the detachment slide hole 51 comes out of the fixing pin 712, and the vertical frame auxiliary 5 separates from the vertical frame slider 71. Figure 11(B) shows the state in which a firefighter moves the external lever 7 during an emergency, compared to the normal state shown in Figure 11(A), which is a cross-sectional view. When the external lever 7 is moved, the fixing pin 712 moves together with the vertical frame slider 71, and with the added force of the biasing member 72 (leaf spring), the fixing pin 712 comes out through the release slide hole 51 provided in the vertical frame support 5, causing the vertical frame support 5 to separate. As mentioned above, the vertical frame support 5 is biased by the biasing member 72 (leaf spring) shown in Figure 11, and the fixing pin 712 moves into the release area 511 of the release slide hole 51 to assist in the separation. Furthermore, the release slide hole 51 provided in the vertical frame auxiliary 5 shown in Figure 13 and the fixing pin 712 provided in the vertical frame slider 71 may be provided again above the opening limiting arm 8, depending on the size of the joinery and whether the joinery has a vertically long vertical frame 31.
[0038] The exterior lever 7 is located on the outside and can slide the vertical frame slider 71. The invention discloses a vertical sliding window 1 (opening device) in which a firefighter can use an external lever 7 to move the vertical frame slider 71 up and down, and when the vertical frame support 5 reaches a predetermined position, the vertical frame support 5 can be detached from the vertical frame slider 71.
[0039] (The principle of invalidation) Figure 13(A) is an explanatory diagram of the various components attached to the vertical frame support 5. The principle of neutralizing the component that obstructs opening in this embodiment is that one end of the mechanism that obstructs opening is attached to the vertical frame support 5. The vertical frame support 5 has various components attached to it. Most of these components are involved in locking or are components that prevent opening, such as the opening limiting arm 8. Starting from the top, in Figure 13(A), the uppermost component of the vertical frame support 5 is the opening limiting arm 8. The opening limiting arm 8 does not function when the shoji screen 3 is closed, but if a user who wants to maintain a half-open state uses the function of the opening limiting arm 8, they will be unable to open the shoji screen 3 any further in the half-open state, thus preventing the shoji screen 3 from being opened. The next component is a handle connecting member 54 for attaching the handle 37 to the vertical frame 31. The handle 37 is attached to an L-shaped handle connecting member 54, as explained in Figure 7. As previously described, the handle 37 is located on the vertical frame 31. The tip 371 of the handle 37 locks into a pocket 28 that opens on the inner circumference surface 212 of the vertical frame 21, preventing the opening of the sliding door 3. The handle 37 is secured to the vertical frame support 5 by using a handle connecting member 54. For the purpose of disabling it, as described later, the handle 37 needs to be supported by the vertical frame support 5. The next component is a lock pin 56 attached to the vertical frame auxiliary 5. As explained in Figures 3 to 6, locking by the lock pin 56 is achieved when the lock pin 56 attached to the vertical frame auxiliary 5 fits into a lock pin receiver 63 provided on the inner circumference surface 212 of the vertical frame 21.
[0040] These members that obstruct opening are either attached to the vertical frame support 5 in this manner, or they engage with members attached to the vertical frame support 5. When the external lever 7 of this embodiment is activated, it separates the vertical frame support 5 from the vertical frame slider 71, i.e., the vertical frame 31, as shown in Figures 13(D-3) and 11(B). The members that obstruct opening, which are attached to the vertical frame support 5, are completely separated from the vertical frame 31 along with the vertical frame support 5 and are all rendered ineffective. The separated vertical frame support 5 either catches on the vertical frame 21 and remains on the vertical frame 21 side, or it falls off. The various members that obstruct opening provided on the vertical frame support 5 are essential for locking and limiting the opening, and when the vertical frame support 5 is removed, the locking and other functions are lost along with the vertical frame support 5. Thus, the external lever 7 in this embodiment is very easy for firefighters to use.
[0041] Furthermore, the opening restriction arm 8 works to maintain the sliding door 3 in a half-open state. In this embodiment, even when the door is in a half-open state, the outer lever 7 can be operated to separate the vertical frame support 5 from the sliding door 3, so that firefighters can open the sliding door 3 without knowing how to remove the opening restriction arm 8. An example of applying this principle is to attach one end of a component that obstructs opening, such as a "swing stopper" (not shown), to the vertical frame auxiliary 5, allowing the firefighter to disable the swing stopper's function using the external lever 7. Furthermore, even if a component cannot be directly attached to the vertical frame support 5, the handle 37 can be indirectly attached to the vertical frame support 5 via the handle connecting member 54, as shown in the example of the handle 37. In this way, various components that hinder the opening of the shoji screen 3, not limited to those shown in the embodiment, can be neutralized by attaching them to the vertical frame support 5.
[0042] Although the embodiment uses a vertical sliding window 1 as an example, the embodiment can be applied to any opening device 1 to which this principle can be applied. For example, it can be applied to vertically opening windows and horizontally opening windows.
[0043] The above embodiments and various aspects can be combined by utilizing each other's technologies, as long as there are no particular contradictions or problems in their purpose, structure, etc. [Explanation of Symbols]
[0044] 1. Vertical sliding window (opening device) 2 slots 21 Vertical frame 212 Inner circumference side depth surface 24 Shoji lock operation part 25 Rotating Plates 251 Engagement protrusion 252 Rotation axis 26 Interlocking section 261 U-shaped groove 28 pockets 27 limiting pins 271 Restriction pin enlargement section 29 Protruding plate 3 Shoji (paper screen) 31 Vertical stile (hanging stile) 311 Vertical frame visible surface 312 Vertical frame depth 37 Handle 371 Tip 372 Handle rotation axis 373 Folding 5. Vertical frame support 51 Release slide holes 511 Detachment Zone 512 Holding area 54 Handle connecting member 55 Arm rotation pin 551 Bulge 56 Locking pins 561 Expanded diameter part 57 Fixing plate 571 Fastening hole 6. Interlocking rod 63 Lock pin receiver 64 Open area 65 Restraint part 66 Top surface of lock pin receiver 67 Lock pin entry point 7. External lever 71 Vertical frame slider 712 Fixing pin 7121 Enlarged section 72. Biasing member (leaf spring) 73 Gripping part 74 External lever pivot axis 75 Interlocking pins 8. Opening limiting arm 81 Slide groove 811 Aperture restriction position 812 Large opening 813 Small opening 82 Arm rotation pin holes 84 Grasping part
Claims
[Claim 1] Equipped with a shoji screen, vertical frame, opening limiting arm, and external lever, Shoji screens have vertical frames, The vertical frame has a vertical frame auxiliary and a vertical frame slider. The vertical frame support is in a fixed position and loosely fitted into the vertical frame slider. The vertical frame slider slides vertically relative to the vertical frame. The opening limiting arm restricts the opening width of the vertical frame and vertical stile, with one end rotatably attached to the vertical stile support and the other end rotatably attached to the vertical frame. An opening device characterized by an external lever located on the exterior side that allows the vertical frame slider to slide, and which allows the vertical frame support to detach from the vertical frame slider when the vertical frame slider reaches a predetermined position on the vertical frame support.
Citation Information
Patent Citations
JP1987108467U