JP2023074323A - Latch device and fitting - Google Patents

Abstract

To adjust an operating force when opening/closing a sliding sash without increasing the size of the external dimensions.SOLUTION: A latch device 27 which includes a roller 37 that is provided on a vertical frame 11 of a frame body 10 and a receiving member 40 that is provided on a vertical stile 24 of a sliding sash 20 and that 40 is provided with an engagement protrusion 43 capable of being brought into contact with the roller 37 in response to an opening/closing of a sliding sash 20; and which restricts the movement of the sliding sash 20 with respect to the frame body 10 in the opening direction when the sliding sash 20 is closed by the roller 37 overcoming and contacting the engagement protrusion 43 of the receiving member 40; and in which the engagement protrusion 43 has a length that allows the path of passage of the roller 37 to be changed and is configured in an inclined shape with a continuously varying protruding height in the length direction.SELECTED DRAWING: Figure 4

Description

TECHNICAL FIELD The present invention relates to a latch device for fittings and fittings for restricting the movement of a shoji with respect to a frame in the opening direction.

As this type of latch device, there is one in which a roller latch is provided on the vertical frame of the shoji and a vertical frame latch receiver is provided on the frame. The roller latch includes a roller movably supported with respect to the case, and a spring interposed between the case and the roller to press the roller in a projecting direction. In this latch device, when the shoji is closed, the roller of the roller latch is pressed against the concave portion of the latch receiver by the spring, and the movement of the shoji with respect to the frame in the opening direction is restricted (for example, Patent Document 1).

Japanese Patent Application Laid-Open No. 2007-113221

By the way, in the latch device described above, a spring receiver for supporting a spring is arranged movably with respect to the case, and an adjustment bolt is arranged between the spring receiver and the case. In this latch device, when the adjustment bolt is operated to change the distance between the spring receiver and the case, the pressing force of the pressing member by the spring changes, so it is possible to adjust the operating force when opening and closing the shoji. Become. However, the outer dimensions of the case for housing the spring bearings and adjustment bolts are increased, and it becomes difficult to attach them to fittings that employ vertical frames and vertical stiles with small apparent dimensions, for example. There is a concern that problems such as

SUMMARY OF THE INVENTION In view of the above circumstances, it is an object of the present invention to provide a latch device and fittings capable of adjusting the operating force for opening and closing a shoji while suppressing an increase in external dimensions.

In order to achieve the above object, a latch device according to the present invention comprises a pressing member provided on either one of a frame and a shoji, and a receiving member provided on the other, wherein the receiving member is attached to the shoji. An engaging projection is provided that can come into contact with the pressing member as the shoji is opened and closed, and the engaging projection is engaged after the pressing member climbs over the engaging projection of the receiving member when the shoji is closed. A latch device for fittings that restricts the movement of the shoji in the opening direction with respect to the frame by coming into contact with a part, wherein the engaging projection has a length that allows the passage path of the pressing member to be changed. and is configured in an inclined shape in which the height of the protrusion changes continuously in the length direction.

Further, the latch device according to the present invention includes a pressing member provided on one of the frame and the shoji, and a receiving member provided on the other, and the receiving member is provided with the opening and closing of the shoji as the shoji is opened and closed. An engaging protrusion is provided that can come into contact with the pressing member, and when the shoji is closed, the pressing member comes into contact with the engaging protrusion after riding over the engaging protrusion of the receiving member. is a latch device for fittings that restricts the movement of the shoji with respect to the frame in the opening direction by means of It is characterized in that it is configured in a stepped manner in which the height of the protrusion changes stepwise in the length direction.

According to the present invention, it is possible to adjust the operating force for opening and closing the shoji by changing the passage path of the pressing member with respect to the engaging protrusion, and there is no need to provide an adjusting mechanism for the pressing member. Therefore, it is possible to prevent the external dimensions from becoming large, and there are advantages such as being able to be attached to fittings to which vertical frames and vertical stiles with small apparent dimensions are applied.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure of the fitting which is embodiment of this invention. The fitting shown in FIG. 1 is shown, (a) is a cross-sectional view with the shoji closed, and (b) is a cross-sectional view with the shoji open. The roller latch applied to the latch device of fittings shown in FIG. 1 is shown, (a) is a longitudinal cross-sectional view, (b) is a right side view in (a). The receiving member applied to the latch device of fittings shown in FIG. 1 is shown, (a) is a perspective view, (b) is a side view, and (c) is a front view. FIG. 2 shows a receiving member applied to the fitting latch device shown in FIG. 1, (a) is a cross-sectional perspective view broken at the upper portion of the engaging projection, and (b) is broken at the lower portion of the engaging projection. It is a cross-sectional perspective view. FIG. 1 shows an enlarged view of the main part of the fitting shown in FIG. 1, where (a) is a cross-sectional view of the pressing member passing through the upper part of the engaging protrusion, and (b) is a cross-sectional view of the pressing member passing through the engaging protrusion. FIG. 4 is a cross-sectional view on the way through the lower part of the part; FIG. 2 shows Modification 1 of the receiving member applied to the fittings shown in FIG. 1 , (a) is a perspective view, (b) is a side view, and (c) is a front view. FIG. 2 shows Modified Example 2 of the receiving member applied to the fittings shown in FIG. 1 , (a) is a perspective view, (b) is a side view, and (c) is a front view. FIG. 3 shows a third modified example of a receiving member applied to the fitting shown in FIG. 1, (a) is a perspective view, (b) is a side view, and (c) is a front view.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, preferred embodiments of a latch device and fittings according to the present invention will be described in detail with reference to the accompanying drawings. In the following description, for the sake of convenience, the terms "viewing direction" and "viewing direction" may be used. The prospective direction is the direction along the depth of the fittings, as indicated by arrow A in the drawing. A surface along the prospective direction may be referred to as a prospective surface. In the case of an object such as an upper frame that extends along the horizontal direction, the viewing direction is a vertical direction orthogonal to the viewing direction. In the case of a vertical frame or the like that extends along the vertical direction, the horizontal direction perpendicular to the projection direction is called the viewing direction. A plane along the viewing direction may be referred to as a viewing plane.

1 and 2 show fittings that are embodiments of the present invention. The fitting exemplified here is called a swing door, and includes a frame 10 and a shoji 20 . The frame body 10 is constructed by providing an upper frame 12 between upper ends of left and right vertical frames 11 . The shoji 20 is constructed by mounting an upper frame 22, a lower frame 23, and left and right vertical frames 24 around a panel 21 such as a rectangular glass plate. The shoji 20 is supported on the frame 10 by a hinge 1 provided between one vertical frame 24 and one vertical frame 11 of the frame 10, and rotates around the hinge axis along the vertical direction. The opening of the frame 10 can be opened and closed. Although not shown in the figure, in this fitting, the gap between the vertical frame 11 of the frame body 10 and the vertical frame 24 of the shoji 20 can be adjusted by appropriately changing the mounting position of the hinge 1. is possible. Handles 25 are attached to both sides of the panel 21, which will be the edge of the door. The vertical frame 11, the upper frame 12, and the upper frame 22, the lower frame 23, and the vertical frame 24, which constitute the shoji screen 20, which constitute the frame body 10, are extruded members formed of a metal such as an aluminum alloy. It is configured to have a substantially uniform cross-sectional shape along the entire length. Hereinafter, the configuration of the vertical frame 11 of the frame 10 and the vertical frame 24 of the shoji 20 will be described in detail, and the features of the present application will also be described. In the following description, for the sake of convenience, it is assumed that the above-mentioned fittings are provided at a position that separates the room a and the room b, and are configured to protrude toward the room b when the shoji 20 is opened. conduct.

The vertical frame 11 of the frame 10 has a symmetrical shape on the left and right, and the frame main body portion 11a and the side wall portion 11b are integrally formed. The frame body portion 11a has a hollow tubular shape with a substantially rectangular cross section. The viewing wall portion 11b protrudes from the corner on the side of the chamber a on the inner peripheral side of the frame 10 along the viewing direction toward the inner peripheral side. The projection dimension of the viewing wall portion 11b is set so that the edge on the inner peripheral side faces the viewing surface of the vertical frame 24 facing the chamber a when the shoji 20 is closed. A seal member 11c for ensuring airtightness with respect to the shoji 20 is attached over substantially the entire length of the vertical frame 11 at the projecting edge of the facing wall 11b facing the chamber b.

The vertical frame 24 of the shoji 20 has a symmetrical shape on the left and right, and a frame main body portion 24a, two panel holding piece portions 24b and two cover holding piece portions 24c are integrally formed. The frame body portion 24a is in the shape of a substantially rectangular hollow cylinder. In the illustrated example, vertical stiles 24 having stile body portions 24a whose size in the view direction is smaller (approximately 1/4) than the size in the view direction are applied. The panel holding pieces 24b protrude inwardly along the viewing direction from the projected surface on the inner peripheral side of the frame main body 24a, and hold the panel 21 between them. The cover holding pieces 24c protrude from both side edges of the frame main body 24a toward the outer circumference in a direction of gradually approaching each other, and detachably hold the cover member 26 therebetween. . Like the vertical frame 24 , the cover member 26 is an extruded shape member made of a metal such as an aluminum alloy, and is formed to have substantially the same longitudinal dimension as the vertical frame 24 .

Between the vertical frame 11 and the vertical frame 24 constructed as described above, a latch device 27 is provided between the portions on the door end side. The latch device 27 is for restricting the movement of the shoji 20 in the opening direction with respect to the frame 10, and comprises a roller latch 30 provided on the vertical frame 11 and a receiving member 40 provided on the vertical frame 24. be.

The roller latch 30 comprises a case 31, a support bracket 32, a pressing spring 33, and a cover plate 34, as shown in FIGS. The case 31 has a rectangular parallelepiped shape with one side open. A spring seat 31a is provided on the inner bottom surface of the case 31 so as to protrude. Flanges 35 extend in directions away from each other on both sides of the opening of the case 31 . The flanges 35 are provided so as to be positioned on the same plane, and have screw holes 35a at their respective extended ends. The support bracket 32 has a size that can be accommodated inside the case 31, and a support shaft 36 is provided between the support plate portions 32a facing each other. The support shaft 36 extends along the vertical direction, and supports the roller (pressing member) 37 rotatably around its axis. A portion of the support bracket 32 corresponding to the spring seat 31a of the case 31 is provided with a protruding spring contact seat 32b. The pressure spring 33 is a coiled spring that is interposed between the spring seat 31a of the case 31 and the spring contact seat 32b of the support bracket 32 to always press the support bracket 32 against the case 31 in a protruding direction. be. The cover plate 34 has a flat plate shape large enough to cover the case 31 and the flanges 35 on both sides. The cover plate 34 is provided with a roller projection hole 34a and two screw insertion holes 34b. The roller protrusion hole 34 a is a through hole formed in a portion facing the opening of the case 31 . The roller projecting hole 34a is formed in a size that allows the roller 37 supported by the support bracket 32 to pass therethrough and prevents the base end portion of the support bracket 32 from passing therethrough. The screw insertion hole 34 b is a through hole provided in a portion of the flange 35 corresponding to the screw hole 35 a when the roller projection hole 34 a is aligned with the opening of the case 31 .

The roller latch 30 is attached to the frame body portion 11 a of the vertical frame 11 at a height corresponding to the handle 25 of the shoji 20 . More specifically, the frame body portion 11a of the vertical frame 11 is provided with a latch opening 11d in advance in a portion facing the vertical stile 24 on the projection surface on the inner peripheral side. Mounting holes (mounting holes) 11e for screw insertion are formed in the upper and lower portions. The latch opening 11d is a notch having a size that allows the support bracket 32 and the roller 37 to pass through. In this embodiment, the hole is formed in an elongated shape along the extending direction of the vertical frame 11 so that the insertion position of the roller 37 can be moved in the vertical direction. The screw insertion mounting hole 11e is a notch formed to be an elongated hole vertically along the extending direction of the vertical frame 11, and the insertion position of the mounting screw S, which will be described later, can be moved in the vertical direction. It is possible. In order to attach the roller latch 30 to the frame body portion 11a, the case 31 is first accommodated inside the frame body portion 11a. At this time, the pressing spring 33 and the support bracket 32 are housed inside the case 31 in advance so that the opening of the case 31 is aligned with the latch opening 11d of the frame body portion 11a. From this state, the cover plate 34 is placed on the inner surface of the frame main body 11a, and the screws of the flange 35 are inserted through the screw insertion holes 34b of the cover plate 34 and the screw insertion mounting holes 11e of the frame main body 11a. The roller latch 30 can be attached to the vertical frame 11 by screwing the attachment screw S into the hole 35a. In the roller latch 30 attached to the vertical frame 11, the pressing spring 33 holds the roller 37 in a state of protruding outside from the projected surface of the frame body portion 11a. The maximum amount of protrusion of the roller 37 is defined by the contact of the base end portion of the support bracket 32 with the cover plate 34 . When a pressing force is applied to the roller 37 in this state, the pressing spring 33 is compressed via the support bracket 32, thereby reducing the amount of protrusion of the roller 37 from the projected surface of the frame body portion 11a. When the pressing force on the roller 37 is removed, the restoring force of the pressing spring 33 restores the roller 37 to the projected state. Further, the position of the roller latch 30 with respect to the vertical frame 11 can be changed up and down by adjusting the insertion position of the mounting screw S in the mounting hole 11e for screw insertion provided in the frame body portion 11a.

As shown in FIGS. 4 and 5, the receiving member 40 has a plate-like shape elongated in the direction in which the vertical frame 24 extends. 4(c), it has a guide surface 41 on the left edge, and a concave portion 42 on a substantially central portion in the vertical and horizontal directions. The guide surface 41 is an inclined surface formed by gradually decreasing the plate thickness from the central portion toward the edge portion. The concave portion 42 has a cylindrical concave shape whose axis extends in the vertical direction, and is formed so that the dimension along the axial direction is larger than the roller 37 of the roller latch 30 . As is clear from the drawing, an engagement protrusion 43 is formed in a portion of the receiving member 40 located between the recess 42 and the guide surface 41 . The engaging protrusion 43 is formed in an inclined plane shape so that the protrusion height is larger than the inner bottom surface of the recess 42 and the protrusion height gradually decreases downward. In the upper and lower portions of the concave portion 42, screw insertion holes 44 are formed which are elongated in the left-right direction. The receiving member 40 is arranged on the projected surface on the outer peripheral side of the vertical frame 24 in a posture in which the guide surface 41 precedes when the shoji 20 is closed, in other words, the guide surface 41 is positioned on the chamber a side, It is attached to the vertical frame 24 by screwing a mounting screw (not shown) through the screw insertion hole 44 . The position in the left-right direction (prospect direction) at which the receiving member 40 is attached to the vertical frame 24 can be adjusted by changing the position of the attachment screw with respect to the screw insertion hole 44 . In the illustrated example, the position of the receiving member 40 is set so that the roller 37 of the roller latch 30 rides over the engagement protrusion 43 and is arranged in the recess 42 when the shoji 20 is closed.

In the fitting provided with the latch device 27 as described above, when the shoji 20 in the opened state relative to the frame 10 is moved in the closing direction, first, as shown in FIG. The roller 37 of the roller latch 30 comes into contact with the guide surface 41 of the roller latch 30 . The roller 37 in contact with the guide surface 41 of the receiving member 40 is housed inside the case 31 against the pressing force of the pressing spring 33 by the action of the inclined surface when the shoji 20 moves further in the closing direction. will move in the direction When the shoji 20 is moved to a position where the shoji 20 is completely closed with respect to the frame 10, the roller 37 rides over the engagement protrusion 43 and is accommodated in the recess 42 of the receiving member 40, so that as shown in FIG. , the roller 37 is pressed against the inner bottom surface of the recess 42 by the elastic restoring force of the pressing spring 33 . In this state, the roller 37 abuts against the side surface of the chamber b at the engagement protrusion 43, so that the movement of the shoji 20 relative to the frame 10 in the opening direction is restricted, and the shoji 20 is carelessly moved. It is possible to prevent an opening situation. In order to open the shoji 20 with respect to the frame 10, the roller 37 is housed in the case 31 against the pressing force of the pressing spring 33, and an external force is applied to the shoji 20 to overcome the engaging protrusion 43.

Here, as described above, the engaging protrusion 43 of the receiving member 40 with which the roller 37 of the roller latch 30 abuts is formed in an inclined surface shape so that the protrusion height gradually decreases downward. Therefore, by changing the portion through which the roller 37 passes with respect to the engaging protrusion 43, the operating force for opening and closing the shoji 20 can be adjusted. That is, when the roller 37 passes through the upper part of the engagement protrusion 43 as the passage route R1 as indicated by the arrow R1 in FIG. 4(c), as shown in FIG. Since the projection height h1 of the protrusion 43 is large, it is necessary to greatly bend the pressure spring 33 as shown in FIG. 6(a). On the other hand, as shown by arrow R2 in FIG. 4(c), when the roller 37 passes through the lower portion of the engaging protrusion 43 as the passage route R2, as shown in FIG. 5(b), Since the projection height h2 of the engaging projection 43 is small, the amount of deflection of the pressing spring 33 can be small as shown in FIG. 6(b). Therefore, when the relative position between the roller latch 30 and the receiving member 40 is adjusted and the passage route R1 of the roller 37 is selected so as to get over the upper portion of the engaging protrusion 43, the operation when opening and closing the shoji 20 It is possible to configure fittings in which the force is set to be large. On the other hand, when the passage route R2 of the rollers 37 is selected so as to get over the lower portion of the engaging projection 43, the fittings can be opened and closed with a small operating force. Moreover, as a configuration for adjusting the setting of the operating force, the engaging protrusion 43 is configured so that the protrusion height differs between the upper and lower positions, and the roller latch 30 does not require an adjustment mechanism. Therefore, it is possible to prevent the outer dimensions of the receiving member 40 and the roller latch 30 from becoming large, and it is possible to attach them to the vertical stile 24 and the vertical frame 11 having a small nominal size. It is advantageous in terms of appearance quality.

In the above-described embodiment, the engaging protrusion 43 has a maximum protrusion height at the surface of the receiving member 40 and gradually decreases downward, but the present invention is not limited to this. However, it is also possible to configure the engaging protrusion 143 so that the protrusion height is larger than the surface 140a of the receiving member 140, as in Modification 1 shown in FIG. In Modification 1 described above, the same components as in the embodiment are denoted by the same reference numerals.

Further, in the embodiment and Modification 1, the receiving members 40 and 140 provided with the inclined engaging protrusions 43 and 143 whose protrusion heights are continuously changed are illustrated, so the rollers of the roller latch 30 By changing the relative positions of 37 and receiving members 40 and 140, it is possible to finely adjust the operating force when opening and closing the shoji 20. FIG. However, the invention is not so limited. For example, as in Modification 2 shown in FIG. 8 , even with a receiving member 240 having a stepped engagement projection 243 whose projection height changes in stages, the operating force when opening and closing the shoji 20 can be adjusted. That is, in Modification 2, the engaging protrusion 243 is provided with a plurality of path surfaces 243a, 243b, and 243c that have different protrusion heights and are parallel to the surface 240a of the receiving member 240. FIG. Therefore, by changing the path surfaces 243a, 243b, 243c with which the rollers 37 abut, it is possible to change the operating force for opening and closing the shoji 20. FIG. Even in this case, as in Modification 3 shown in FIG. good. In addition, in Modifications 2 and 3, the path surfaces do not necessarily have to be arranged in order of the height of protrusion. Also, the number of path planes is not limited to three. In Modifications 2 and 3 described above, the same reference numerals are assigned to the same configurations as in the embodiment.

In addition, although the roller 37 is exemplified as the pressing member in the above-described embodiment, it is not necessarily the roller 37, and it is not necessarily necessary to rotate or roll. Further, although the pressing member is brought into contact with the receiving member by the coiled pressing spring 33, it is not always necessary to apply the coiled pressing spring. Furthermore, although the shoji 20 is exemplified by being supported via the hinge 1 with respect to the frame 10, it is not necessarily limited to this. etc. can also be applied.

In the above-described embodiment, the mounting position of the roller latch 30 relative to the vertical frame 11 is changed vertically within the screw insertion mounting hole 11e to select the passage path of the pressing member with respect to the engagement protrusion. However, the mounting position of the receiving member 40 with respect to the vertical frame 24 may be changed up and down to select the passage path of the pressing member with respect to the engaging protrusion. In addition, when the mounting position of the roller latch is changed up and down, in the above-described embodiment, the screw insertion mounting hole 11e of the vertical frame 11 is formed in an elongated hole shape. 40 may be provided with an elongated attachment hole. Furthermore, while the pressing member is provided on the frame, the receiving member is provided on the shoji, but the reverse may of course be applied.

As described above, the latch device according to the present invention includes a pressing member provided on one of the frame and the shoji, and a receiving member provided on the other. An engaging protrusion is also provided that can come into contact with the pressing member, and when the shoji is closed, the pressing member crosses over the engaging protrusion of the receiving member and then engages with the engaging protrusion. A latch device for fittings that restricts the movement of the shoji with respect to the frame in the opening direction by abutting thereon, wherein the engaging projection has a length that allows the passage path of the pressing member to be changed. Further, it is characterized in that it is formed in an inclined shape in which the height of the projection changes continuously in the length direction.
According to this invention, it is possible to adjust the operating force when opening and closing the shoji by changing the passage path of the pressing member with respect to the engaging protrusion, and there is no need to provide an adjusting mechanism for the pressing member. Therefore, it is possible to prevent the external dimensions from becoming large, and there are advantages such as being able to be attached to fittings to which vertical frames and vertical stiles with small apparent dimensions are applied. Moreover, since the projection height of the engaging protrusion changes continuously, the operating force for opening and closing the shoji can be finely adjusted.

Further, the latch device according to the present invention includes a pressing member provided on one of the frame and the shoji, and a receiving member provided on the other, and the receiving member is provided with the opening and closing of the shoji as the shoji is opened and closed. An engaging protrusion is provided that can come into contact with the pressing member, and when the shoji is closed, the pressing member comes into contact with the engaging protrusion after riding over the engaging protrusion of the receiving member. is a latch device for fittings that restricts the movement of the shoji with respect to the frame in the opening direction by means of It is characterized in that it is configured in a stepped manner in which the height of the protrusion changes stepwise in the length direction.
According to this invention, it is possible to adjust the operating force when opening and closing the shoji by changing the passage path of the pressing member with respect to the engaging protrusion, and there is no need to provide an adjusting mechanism for the pressing member. Therefore, it is possible to prevent the external dimensions from becoming large, and there are advantages such as being able to be attached to fittings to which vertical frames and vertical stiles with small apparent dimensions are applied. Moreover, since the protrusion height of the engaging protrusion changes stepwise, even if the passage path of the pressing member with respect to the engaging protrusion is slightly deviated, the operating force for opening and closing the shoji does not change. Setting work becomes easy.

Further, according to the present invention, in the above-described latch device, at least one of the pressing member and the receiving member is connected to the frame body and the receiving member through an attachment hole that is elongated along the length direction of the engaging protrusion. It is characterized in that it is attached by screwing a fixing member to either one of the shoji.
According to this invention, since the operating force for opening and closing the shoji can be changed by changing the position of the attachment hole with respect to the fixing member, the operation for adjusting the operating force is facilitated.

In addition, the fitting according to the present invention comprises a frame and a shoji, wherein the shoji has a vertical stile attached to a portion of a panel that serves as the edge of the door, and the pressing member of the latch device described above is arranged vertically on the frame. It is characterized in that it is provided on the frame and the receiving member is provided on the vertical frame.
According to the present invention, since it is only necessary to provide a support member for the vertical frame, it is advantageous in terms of appearance quality, such as securing a large panel area by setting a small dimension in the viewing direction.

10 frame, 11 vertical frame, 11d latch opening, 11e mounting hole for screw insertion, 20 shoji, 24 vertical frame, 27 latch device, 30 roller latch, 31 case, 32 support bracket, 33 pressure spring, 34 cover plate, 34a roller projection hole 34b screw insertion hole 35 flange 35a screw hole 36 support shaft 37 roller 40, 140, 240, 340 receiving member 41 guide surface 42 recess 43, 143, 243, 343 engagement Protrusions 243a, 243b, 243c, 343a, 343b, 343c Path surface R1, R2 Passage path S Mounting screw h1, h2 Projection height

Claims (4)

A pressing member provided on either one of the frame and the shoji, and a receiving member provided on the other, wherein the receiving member is engaged with the pressing member as the shoji is opened and closed. A protrusion is provided, and when the shoji is closed, the pressing member overcomes the engagement protrusion of the receiving member and then comes into contact with the engagement protrusion, thereby changing the opening direction of the shoji with respect to the frame. A latching device for fittings that limits movement to
The engaging protrusion has a length that allows the passage path of the pressing member to be changed, and is formed in an inclined shape such that the protrusion height changes continuously in the length direction. latch device. A pressing member provided on either one of the frame and the shoji, and a receiving member provided on the other, wherein the receiving member is engaged with the pressing member as the shoji is opened and closed. A protrusion is provided, and when the shoji is closed, the pressing member overcomes the engagement protrusion of the receiving member and then comes into contact with the engagement protrusion, thereby changing the opening direction of the shoji with respect to the frame. A latching device for fittings that limits movement to
The engaging protrusion has a length that allows the passage of the pressing member to be changed, and is formed in a stepped shape in which the height of the protrusion changes stepwise in the length direction. latch device. At least one of the pressing member and the receiving member is screwed to either one of the frame and the shoji through a mounting hole elongated along the length direction of the engaging protrusion. 3. A latch device according to claim 1 or claim 2, wherein the device is attached by: A frame and a shoji are provided, and the shoji has a vertical frame attached to a portion of a panel that will be the edge of the door. A fitting characterized by being provided on the vertical frame of a frame body and providing the receiving member on the vertical stile.

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