Fitting

Abstract

To provide a fitting with good operability when opening and closing a shoji screen.SOLUTION: The fitting includes a frame 1 and a shoji screen 2. The shoji screen 2 has a cam latch handle 3 which locks it in the closed position and also operates to open and close it. A locking mechanism 4 is provided between a vertical frame 7a and a vertical stile 10a of the shoji screen 2. The cam latch handle 3 and the locking mechanism 4 are linked together so that when the cam latch handle 3 is in the locked state, the locking mechanism 4 is in a locked state, and when the cam latch handle 3 is in the unlocked state, the locking mechanism 4 is in an unlocked state.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to fittings. [Background technology]

[0002] When it comes to fittings, there is a demand for sliding doors that are easy to open and close. Summary of the Invention [Problem to be solved by the invention]

[0003] In view of the above-mentioned circumstances, the present invention aims to provide a fitting that provides good operability when opening and closing a shoji screen. [Means for solving the problem]

[0004] In order to achieve the above object, the building fixture according to the invention described in claim 1 comprises a frame and a screen, the screen having a cam latch handle which locks it in the closed position and operates it to open and close, and a locking mechanism between the vertical frame and the vertical stile of the screen, the cam latch handle and the locking mechanism being linked together so that the locking mechanism is in a locked state when the cam latch handle is in a locked state and is in an unlocked state when the cam latch handle is in an unlocked state. Effect of the Invention

[0005] The fixture according to the invention described in claim 1 comprises a frame and a screen. The screen has a cam latch handle which locks it in the closed position and also operates to open and close it. A locking mechanism is provided between the vertical frame and the vertical stile of the screen. The cam latch handle and the locking mechanism are linked so that when the cam latch handle is in the locked position, the locking mechanism is in the locked position, and when the cam latch handle is in the unlocked position, the locking mechanism is in the unlocked position. Therefore, the screen can be locked / unlocked and opened / closed simply by operating the cam latch handle, providing good operability when opening and closing the screen. [Brief description of the drawings]

[0006] [Figure 1]FIG. 2 is a front view from the indoor side showing one embodiment of the fitting of the present invention. [Diagram 2] 2 is a cross-sectional view taken along line AA in FIG. 1. [Figure 3-1] FIG. 2 is a front view and a cross-sectional view taken along line XX showing an enlarged view of the cam latch handle and the locking mechanism (upper side), in which (a) shows the state in which the cam latch handle is in a locked state and the locking mechanism is in a locked state, and (b) shows the state in which the cam latch handle has been rotated slightly upward from that state. [Figure 3-2] FIG. 2 is a front view and a cross-sectional view along the line XX showing an enlarged view of the cam latch handle and the locking mechanism (upper side), in which (c) shows the state when the cam latch handle is further rotated upward and the locking mechanism is in the unlocked state, and (d) shows the state when the cam latch handle is rotated to the unlocked state. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0007] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Figures 1 to 3-2 show one embodiment of the fitting of the present invention. This fitting is applied to a vertical sliding window. As shown in FIG. 1, this fitting comprises a frame 1 that is attached to an opening in the structure, and a shoji screen 2 that is supported on the frame 1 so that it can be opened and closed. The frame 1 is composed of an upper frame 5, a lower frame 6, and left and right vertical frames 7a, 7b. The shoji screen 2 is composed of an upper frame 8, a lower frame 9, and left and right vertical frames 10a, 10b, and has a double-glazed glass 11 fitted into the frame. The shoji screen 2 has an upper frame 8 and a lower frame 9 connected to the upper frame 5 and the lower frame 6, respectively, by friction stays not shown in the figure, and is designed to open by sliding outward to the outside of the room and rotating around a vertical axis.

[0008] As shown in Figure 1, a cam latch handle 3 is attached to the vertical middle position of the interior side of the vertical frame 10a on the door end side. The cam latch handle 3 is formed into a roughly L-shape when viewed from the front with a lever 12 and a mounting piece 13, and the mounting piece 13 is attached to a base 14 (see Figure 2) attached to the interior side of the vertical frame 10a so as to be rotatable about a rotation shaft 15 in the indoor / outdoor direction as a fulcrum. As shown in Figure 1, when the lever 12 of the cam latch handle 3 is in a downward position, as shown in Figure 2, the locking piece 16 provided at the tip of the mounting piece 13 engages with the cam latch receiver 17 provided on the vertical frame 7a, and the shoji screen 2 is locked in the closed position (locked state). As shown in Figure 3-2(d), when the cam latch handle 3 is rotated 90 degrees upward so that the lever 12 is horizontal, the lock piece 16 disengages from the cam latch receiver 17, allowing the screen 2 to be opened (unlocked state).

[0009] As shown in Figures 1 and 2, this fitting is equipped with locking mechanisms 4 for locking the shoji screen 2 in the closed position at two locations, the upper and lower, between the vertical frame 10a on the door end side and the vertical frame 7a. The locking mechanism 4 is equipped with a lock pin 18 protruding from the outer periphery of the vertical frame 10a of the shoji screen 2, and a lock receiver 19 provided on the inner periphery of the vertical frame 7a. An interlocking rod 20 is supported on a rail 21 (see Figure 2) on the inner peripheral side of the vertical frame 7a so as to be movable up and down. The lock receivers 19 of the upper and lower locking mechanisms 4 are attached to the upper and lower parts of the interlocking rod 20 so as to move up and down together. As shown in FIG. 3-1(a), the lock receiver 19 has a vertical groove 22 into which the lock pin 18 engages, and an opening 27 that opens toward the outside of the room is provided above the groove 22.

[0010] As shown in Figs. 1 and 2, this fitting is equipped with an interlocking mechanism 23 that transmits the movement of the cam latch handle 3 to the interlocking rod 20, and the cam latch handle 3 and the locking mechanism 4 are interlocked by the interlocking mechanism 23. The interlocking mechanism 23 is composed of a gear 24 as a drive unit provided on the back side of the lock piece 16 of the cam latch handle 3, a rack 25 held in the cam latch receiver 17 so as to be movable up and down while meshing with the gear 24, and a connecting member 26 connecting the rack 25 and the interlocking rod 20.

[0011] As shown in FIG. 3-1(a), when the cam latch handle 3 is in the locked state, the lock receiver 19 is in the uppermost position, the lock pin 18 is engaged with the groove 22 of the lock receiver 19, and the lock mechanism 4 is in the locked state. As shown in Figure 3-1 (b), when the cam latch handle 3 is rotated upward, the gear 24 rotates around the rotating shaft 15 as a fulcrum, and the rack 25 that meshes with the gear 24 descends accordingly, and the lock receiver 19 connected to the rack 25 by the connecting member 26 and the interlocking rod 20 also descends together with the rack 25. As shown in FIG. 3-2(c), when the cam latch handle 3 is further rotated upward, the lock receiver 19 further descends, the lock pin 18 comes out of the groove 22 of the lock receiver 19, and the lock mechanism 4 enters the unlocked state. As shown in Figure 3-2(d), when the cam latch handle 3 is rotated 90 degrees, the locking piece 16 of the cam latch handle 3 disengages from the cam latch receiver 17 and enters an unlocked state, so that the shoji screen 2 can be opened by holding the lever 12 and pushing it toward the outside of the room.

[0012] Here we have explained the movement of the cam latch handle 3 and locking mechanism 4 when opening the shoji screen 2, but the movement of the cam latch handle 3 and locking mechanism 4 when closing the shoji screen 2 is the opposite of that when opening the shoji screen 2. When closing the shoji screen 2, the cam latch handle 3 and locking mechanism 4 also work together in the same way as when opening the shoji screen 2, and after closing the shoji screen 2, when the cam latch handle 3 is rotated downward to enter the locked state, the locking mechanism 4 works together with the movement of the cam latch handle 3 to enter the locked state.

[0013] As described above, this fitting comprises a frame 1 and a door 2, the door 2 has a cam latch handle 3 that locks it in the closed state and operates to open and close it, and a locking mechanism 4 is provided between the vertical frame 7a and the vertical frame 10a of the door 2, and the cam latch handle 3 and the locking mechanism 4 are linked so that when the cam latch handle 3 is in the locked state the locking mechanism 4 is locked and when the cam latch handle 3 is in the unlocked state the locking mechanism 4 is unlocked, so that the door 2 can be locked and unlocked and opened and closed simply by operating the cam latch handle 3, providing good operability when opening and closing the door 2. Moreover, when the door 2 is closed, the cam latch handle 3 and the locking mechanism 4 can firmly fix the door 2 to the vertical frame 7a. When the shoji screen 2 is closed, the door edge of the shoji screen 2 is pulled toward the interior of the room at three points, the cam latch handle 3 and the upper and lower locking mechanisms 4, and secured to the vertical frame 7a, improving watertightness and airtightness. Furthermore, this fitting is designed so that the lock receivers 19 of the upper and lower locking mechanisms 4 move in the same direction when the cam latch handle 3 is operated, thereby locking and unlocking the door, making the mechanism simpler than a cremone lock, which locks between the upper and lower frames by protruding shafts at the top and bottom. The cam latch handle 3 has a drive part (gear) 24 for moving the locking mechanism 4 at the tip of the locking piece 16 that engages with the vertical frame 7a to lock the shoji screen 2, so that the cam latch handle 3 can be used to smoothly lock and unlock the locking mechanism 4, which is rational. This fixture has a drive unit 24 for operating the locking mechanism 4 on the cam latch handle 3, and since the drive unit 24 is provided on the back side of the cam latch handle 3, the drive unit 24 is not visible when viewed from inside the room, which improves the design and also makes it difficult for objects to get caught in the drive unit 24. This fitting has a gear 24 on the cam latch handle 3 as a drive unit for moving the locking mechanism 4, and a rack 25 on the vertical frame 7a side that moves up and down in mesh with the gear 24. The rack 25 moves up and down in conjunction with the operation of the cam latch handle 3, and the movement of the rack 25 is transmitted to the locking mechanism 4 to lock and unlock it, so that the locking mechanism 4 can be locked and unlocked easily and accurately by operating the cam latch handle 3.

[0014] The present invention is not limited to the above-described embodiment. The shape of the cam latch handle and the structure of the locking mechanism can be changed as appropriate. The fittings of the present invention only need to be designed so that the locking mechanism is locked and unlocked in conjunction with the operation of the cam latch handle, and the mechanism for linking the cam latch handle and the locking mechanism is not limited to one using a gear and a rack, and various known mechanisms capable of converting rotary motion into linear motion can be used. The structure of the frame and the shoji screen is arbitrary. The present invention is not limited to vertical sliding windows, but can also be applied to outward opening windows, vertical axis rotating windows, etc. [Explanation of symbols]

[0015] 1 slot 2 Shoji Screen 3 Cam Latch Handle 4 Locking mechanism

Claims

[Claim 1] A fitting comprising a frame and a screen, the screen having a cam latch handle that locks it in the closed position and operates to open and close it, a locking mechanism between the vertical frame and the vertical stile of the screen, the cam latch handle and the locking mechanism being linked together so that the locking mechanism is in a locked state when the cam latch handle is in a locked position and is in an unlocked state when the cam latch handle is in an unlocked position.

Images