JP7465731B2 - Gremon lock bracket - Google Patents

Description

This disclosure relates to a receiving bracket for a cremone lock.

Conventionally, casement windows, such as sliding windows, that are locked with a cremone lock are known as windows that are installed in openings in buildings (see, for example, Patent Document 1).

The Cremon lock has a lock pin that protrudes from the vertical frame of the shoji screen toward the outer periphery, and a receiving bracket that is attached to the inner periphery of the frame. The lock pin moves up and down in conjunction with the operation of a handle attached to the shoji screen. The receiving bracket has mounting surfaces at both the top and bottom ends with screw holes for screwing it to the frame. Between the mounting surfaces at both ends is an L-shaped locking groove that engages and disengages the locking pin. The locking groove receives the locking pin of the shoji screen from the outside of the room as it moves in the closing direction. When the locking pin then moves upwards by operating the handle to lock, it completely engages with the locking groove. This locks the window.

The mounting surface of the receiving hardware of a conventional Cremon lock is formed by bending both ends of a metal plate in the same direction into an L shape. This positions the locking groove in the receiving hardware so that it juts out from the inner periphery of the frame towards the shoji side. A space is formed between the locking groove and the inner periphery of the frame to accommodate and hold the tip of the locking pin on the back side of the locking groove.

JP 2019-65555 A

On the production line, the receiving bracket is screwed to the inner surface of the vertical frame that faces the edge of the shoji screen, using the screw holes on the mounting surface. The mounting surface is formed by bending a metal plate into an L shape, so the raised portion of the mounting surface is located very close to the screw holes. Therefore, when screwing, the screwing jig is likely to interfere with the raised portion of the mounting surface. This has traditionally made it difficult to screw the receiving bracket of the Cremon lock to the frame on the production line. If the mounting surface is made large in the vertical direction, the screw holes can be moved away from the raised portion of the mounting surface. In this case, however, the receiving bracket becomes unnecessarily large, increasing costs.

The inventor therefore discovered a problem: how to provide a cremone lock receiving bracket that is easy to screw in and can be manufactured inexpensively.

The receiving hardware for the Cremon lock of the present disclosure comprises a flat receiving hardware body, screw holes for fixing that open at both the upper and lower ends of the receiving hardware body, and a locking groove that is integral with the receiving hardware body and receives the lock pin of the Cremon lock from the outside of the receiving hardware body between the screw holes and engages by inserting it along the up-down direction of the receiving hardware body. The locking groove is raised in the visible direction from a part of the outside edge of the receiving hardware body and is bent toward the inside of the room, so that it is open in the up-down direction and on the inside of the room.

This is a front view showing a fixture equipped with a receiving bracket for a cremone lock. FIG. FIG. This is a side view showing the end surface of a shoji screen provided on the building fixture. This is an oblique view showing the receiving hardware of a Cremon lock attached to the frame of a building fixture. FIG. 2 is a front view showing the receiving fitting of the cremone lock. FIG. 2 is a plan view showing the receiving fitting of the cremone lock. FIG. 13 is a front view showing a usage form of a modified example of the receiving metal fitting of the Cremon lock. This is a front view showing a modified example of the receiving metal fitting of the Cremon lock, in which the left and right are inverted for use.

Below, an embodiment of the present disclosure will be described with reference to the drawings. In this specification, the term "visible direction" refers to the direction along the in-plane direction of the glass or shoji screen placed in the frame of a fixture placed in an opening formed in a building. The term "visible direction" refers to the indoor/outdoor direction of the fixture, that is, the direction along the depth direction of the fixture. X1 in the drawings indicates the outside, and X2 indicates the inside of the room.

Figure 1 shows the fitting 1, which is a vertical sliding window, as seen from inside the room. The fitting 1 comprises a frame 10 that is fixed to an opening in a building, and a shoji screen 20 that is attached to the inside of the frame 10 so that it can be opened and closed.

The frame body 10 is formed by framing the upper frame 11, the lower frame 12, the hanging side vertical frame 13, and the door end side vertical frame 14 in a rectangular shape. The upper frame 11, the lower frame 12, the hanging side vertical frame 13, and the door end side vertical frame 14 are all made of resin and are joined by welding.

As shown in FIG. 2, the interior of the upper frame 11 is partitioned into multiple spaces in the projection direction. Inside the upper frame 11, hollow sections 11a, 11b, and 11c are formed, in that order from the exterior side to the interior side. A metal upper frame core material 11d is placed in hollow section 11c. An extension section 11e that extends downward is formed at the lower interior side of the upper frame 11. A cushion material 11f is placed on the exterior-facing surface of extension section 11e.

Inside the lower frame 12, multiple hollows 12a, 12b, 12c are formed in the projection direction. A metallic lower frame core material 12d is placed in the hollow 12b. An extension 12e that extends upward is formed at the top of the interior side of the lower frame 12. A cushion material 12f is placed on the exterior surface of the extension 12e.

As shown in FIG. 3, the inside of the hanging-side vertical frame 13 has multiple hollow sections 13a, 13b, and 13c that are partitioned in the projection direction. A metal vertical frame core material 13d is placed in the hollow section 13b. An extension section 13e that extends toward the door end in the projection direction is formed on the indoor side of the hanging-side vertical frame 13. A cushion material 13f is placed on the outdoor surface of the extension section 13e.

Inside the leading edge vertical frame 14, there are multiple hollow sections 14a, 14b, 14c that are partitioned in the projection direction. A metal vertical frame core material 14d is placed in the hollow section 14b. An extension section 14e is formed on the outdoor side of the leading edge vertical frame 14, extending toward the hanging point in the projection direction. A cushioning material 14f is placed on the outdoor side projection surface of the extension section 14e.

As shown in FIG. 3, frame side corner fittings 46 are arranged at the inner corners of the frame body 10. In FIG. 2, the frame side corner fittings 46 are omitted. The frame side corner fittings 46 are arranged at each of the four corners of the frame body 10. The frame side corner fittings 46 themselves are arranged on the projected surface of the frame body 10. The frame side corner fittings 46 are fastened and fixed to the upper frame core material 11d, the lower frame core material 12d, the vertical frame core material 13d, and the vertical frame core material 14d on the inside of the frame body 10 via fastening members such as screws. More specifically, at the upper part of the door end side of the frame body 10, the upper frame core material 11d and the vertical frame core material 14d are connected by the frame side corner fittings 46. At the upper part of the hanging side of the frame body 10, the upper frame core material 11d and the vertical frame core material 13d are connected by the frame side corner fittings 46. Similarly, at the bottom of the door end, the bottom frame core material 12d and the vertical frame core material 14d are connected by frame side corner fittings 46. At the bottom of the hanging end, the bottom frame core material 12d and the vertical frame core material 13d are connected by frame side corner fittings 46.

The shoji screen 20 is composed of glass 25 and a frame 30 configured to surround the glass 25.

The glass 25 is a double-glazed glass that includes an exterior glass 25a that is placed on the exterior side of the room, and an interior glass 25b that is placed on the interior side with a gap between it and the exterior glass 25a. A spacer 26 and the like are placed between the exterior glass 25a and the interior glass 25b.

The frame 30 is formed by framing the upper frame 31, the lower frame 32, the hanging side vertical frame 33, and the door end side vertical frame 34 into a rectangular shape. The upper frame 31, the lower frame 32, the hanging side vertical frame 33, and the door end side vertical frame 34 are all made of resin and are joined by welding.

Inside the upper frame 31, multiple hollows 31a, 31b, 31c are formed from the outside to the inside of the room. In the hollow 31c located on the innermost side of the room, an indoor upper frame core material 31d made of metal is arranged. In the hollow 31b, an outdoor upper frame core material 31e made of metal is arranged. Both the indoor upper frame core material 31d and the outdoor upper frame core material 31e extend along the longitudinal direction of the upper frame 31. An extension portion 31f is formed on the upper outdoor portion of the upper frame 31, facing a part of the upper frame 11 in the projection direction. A cushion material 31g is provided on the indoor side of the extension portion 31f. An engagement fixing portion 31h is formed below the extension portion 31f. A resin push edge member 27 is engaged and fixed to the engagement fixing portion 31h.

Inside the bottom frame 32, multiple hollows 32a, 32b, 32c are formed from the outside to the inside of the room. In the hollow section 32c located on the innermost side of the room, an indoor side bottom frame core material 32d made of metal is arranged. In the hollow section 32b, an outdoor side bottom frame core material 32e made of metal is arranged. Both the indoor side bottom frame core material 32d and the outdoor side bottom frame core material 32e extend along the longitudinal direction of the bottom frame 32. An extension portion 32f is formed on the lower outdoor side of the bottom frame 32, facing a part of the bottom frame 12 in the prospective direction. A cushion material 32g is provided on the indoor side of the extension portion 32f. An engagement fixing portion 32h is formed below the extension portion 32f. A resin push edge member 27 is engaged and fixed to the engagement fixing portion 32h.

Inside the hanging-side vertical frame 33, multiple hollows 33a, 33b, and 33c are formed from the outside to the inside of the room. In the hollow section 33c located on the innermost side of the room, an indoor vertical frame core material 33d made of metal is arranged. In the hollow section 33b, an outdoor vertical frame core material 33e made of metal is arranged. Both the indoor vertical frame core material 33d and the outdoor vertical frame core material 33e extend along the longitudinal direction of the hanging-side vertical frame 33. On the outdoor side of the hanging-side vertical frame 33, an extension portion 33f is formed, which faces a part of the hanging-side vertical frame 13 in the prospective direction. On the indoor side of the extension portion 33f, a cushion material 33g is provided. In addition, a fitting and fixing portion 33h is formed on the door end side of the extension portion 33f. A resin push edge member 27 is fitted and fixed to the fitting and fixing portion 33h.

Inside the end-side vertical frame 34, multiple hollows 34a, 34b, and 34c are formed from the outside to the inside of the room. In the hollow portion 34c located on the innermost side of the room, an indoor vertical frame core material 34d made of metal is placed. In the hollow portion 34b, an outdoor vertical frame core material 34e made of metal is placed. Both the indoor vertical frame core material 34d and the outdoor vertical frame core material 34e extend along the longitudinal direction of the end-side vertical frame 34. On the outdoor side of the end-side vertical frame 34, an extension portion 34f is formed, which faces a part of the hanging-side vertical frame 13 in the prospective direction. A cushion material 34g is provided on the indoor side of the extension portion 34f. On the hanging-side side of the extension portion 34f, a fitting and fixing portion 34h is formed. A resin push edge member 27 is fitted and fixed to the fitting and fixing portion 34h.

In this embodiment, the outdoor upper frame core material 31e, outdoor lower frame core material 32e, outdoor vertical frame core material 33e, and outdoor vertical frame core material 34e located on the outdoor side inside the frame body 30, and the indoor upper frame core material 31d, indoor lower frame core material 32d, indoor vertical frame core material 33d, and indoor vertical frame core material 34d located on the indoor side are connected by a frame core material connecting fitting 67. The frame core material connecting fitting 67 is a plate member formed in a stepped shape according to the shape of the outer surface of the frame body 30. The frame core material connecting fitting 67 is arranged outside the frame body 30. The frame core material connecting fitting 67 is fastened to the outdoor side core material and the indoor side core material arranged in different hollow parts inside the frame body 30 by fastening members such as screws. This reliably prevents the resin frame 30, which has multiple hollows in the forward direction, from separating into the outdoor and indoor sides in the high-temperature environment that occurs when a fire breaks out.

As shown in FIG. 2, the shoji screen 20 is supported inside the frame body 10 so as to be openable and closable by an upper arm member 61 and a lower arm member 62. The upper arm member 61 is connected to the upper frame 11 and also to the upper frame 31. The lower arm member 62 is connected to the lower frame 12 and also to the lower frame 32. In this embodiment, both the upper arm member 61 and the lower arm member 62 are connected to the frame body 30 via a reinforcing member 65 formed into a plate shape from metal.

As shown in Figures 3 and 4, a slide lock mechanism 50 that is linked to a handle 55 is disposed on the door end side of the shoji screen 20. The slide lock mechanism 50 includes a slide plate 51 that moves up and down in response to the operation of the handle 55, and a lock pin 52 that is formed on the visible surface of the door end side of the slide plate 51.

The slide plate 51 is provided on the outer peripheral side surface that forms the hollow portion 34c of the leading edge vertical frame 34, facing the leading edge vertical frame 14. The slide plate 51 is connected to the handle 55 while being slid into the leading edge of the leading edge vertical frame 34. A long and thin slit 53 is formed in the slide plate 51 along the same direction as the movement direction of the slide plate 51. The longitudinal length of the slit 53 is set according to the movement stroke of the slide plate 51. The tip of a separation prevention fitting 57 that is fixed to the leading edge vertical frame 34 adjacent to the slide plate 51 is inserted into the slit 53. The separation prevention fitting 57 is a fitting that prevents the outdoor side and indoor side of the shoji screen 20 from separating in the event of a fire. The tip of this separation prevention fitting 57 is inserted into the slit 53 to guide the vertical movement of the slide plate 51.

The lock pin 52 is provided to protrude laterally from the front surface of the sliding plate 51 toward the front surface 14g of the inner circumference of the front vertical frame 14. In this embodiment, the lock pins 52 are formed at multiple locations in the vertical direction of the sliding plate 51. As shown in FIG. 5, the lock pin 52 has a cylindrical lock pin main body 521 and a disk portion 522 disposed at the tip of the lock pin main body 521. The outer diameter of the disk portion 522 is larger than the outer diameter of the lock pin main body 521.

A receiving bracket 15 with which the lock pin 52 engages is fixed to the inner peripheral surface 14g of the door end vertical frame 14. The lock pin 52 and the receiving bracket 15 form the cremone lock of the door fitting 1. Multiple receiving brackets 15 are fixed to the inner peripheral surface 14g of the door end vertical frame 14 at intervals in the vertical direction according to the number of lock pins 52.

As shown in Figures 5, 6 and 7, the receiving bracket 15 has a flat receiving bracket body 151 formed from a metal plate. The receiving bracket body 151 is formed in a rectangular shape that is longer in the vertical direction than in the width direction along the indoor/outdoor direction. The receiving bracket body 151 is formed flat in the vertical direction and does not have any parts that are bent in the vertical direction.

The upper and lower ends of the receiving bracket body 151 are provided with screw holes 152, 152 for fixing, which are elongated holes that open horizontally. The receiving bracket 15 is fixed to the inner peripheral surface 14g of the leading edge vertical frame 14 by screws 150, 150, which are fastening members inserted into the screw holes 152, 152 at both ends of the receiving bracket body 151. Because the receiving bracket body 151 is flat, the entire back surface of the receiving bracket body 151 constitutes the mounting surface for the leading edge vertical frame 14.

A lock groove forming plate 153 is provided integrally with the receiving bracket body 151 on the exterior edge 151a between the upper and lower screw holes 152, 152 of the receiving bracket body 151. The lock groove forming plate 153 is positioned above the vertical center of the receiving bracket body 151. The lock groove forming plate 153 is raised toward the inner periphery of the door end vertical frame 14 by bending the exterior edge 151a of the receiving bracket body 151 at a substantially right angle in the visible direction. Furthermore, the tip 153a of the lock groove forming plate 153 is bent at a substantially right angle toward the interior side. The tip 153a is positioned slightly outside the widthwise center of the receiving bracket body 151.

The tip 153a of the bent lock groove forming plate 153 is positioned with a specified distance between it and the surface of the receiving bracket body 151. This distance is greater than the axial thickness of the disk portion 522 of the lock pin 52. The inside of the lock groove forming plate 153 forms a lock groove 154 that engages and disengages the lock pin 52. The lock groove 154 is open to the top and bottom of the receiving bracket body 151 and to the indoor side.

The upper end 153b of the lock groove forming plate 153 is positioned below and away from the upper screw hole 152. As shown in FIG. 6, the separation distance L1 between the upper end 153b of the lock groove forming plate 153 and the upper screw hole 152 is set to a distance that does not cause interference between the upper end 153b and the screw fastening jig when the screw 150 is fastened into the upper screw hole 152 using the screw fastening jig.

Next, the manner in which the lock pin 52 engages and disengages with the lock groove 154 of the receiving bracket 15 will be described. When the open shoji screen 20 moves in the closing direction toward the inside of the room, the lock pin 52 protruding from the slide plate 51 provided on the vertical frame 34 on the door end side of the shoji screen 20 approaches the receiving bracket 15 from the outside of the room. When the shoji screen 20 is placed inside the frame body 10 and in the closed state, the lock pin 52 is positioned below the lock groove forming plate 153.

More specifically, as shown by the two-dot chain line in FIG. 5, the lock pin 52 moves from the outside to the inside of the room as the screen 20 moves in the closing direction, and is received by the receiving bracket 15 between the lock groove forming plate 153 and the lower screw hole 152. When the screen 20 is in the closed state, the lock pin 52 stops near the center of the width of the receiving bracket body 151, between the lock groove forming plate 153 and the lower screw hole 152.

When the operator then operates the handle 55 in the locking direction, the slide plate 51 of the slide lock mechanism 50 moves upward in conjunction with the operation of the handle 55. This causes the lock pin 52 to move upward to the same height as the lock groove forming plate 153. At this time, the lock pin body 521 moves upward slightly on the inside of the room beyond the tip 153a of the lock groove forming plate 153. The outer periphery of the disk portion 522 at the tip of the lock pin 52 moves upward slightly on the outside of the room beyond the tip 153a of the lock groove forming plate 153. Therefore, as the lock pin 52 moves upward, the disk portion 522 of the lock pin 52 is inserted into the lock groove 154.

As shown in Figures 5 and 6, the lower end of the tip 153a of the lock groove forming plate 153 has an inclined surface 153c that is cut out at an angle. As a result, even if the lock pin body 521 abuts against the tip 153a of the lock groove forming plate 153 while the lock pin 52 is moving upward toward the lock groove 154, it is smoothly guided along the inclined surface 153c toward the indoor side of the tip 153a.

When the movement of the slide plate 51 stops at the end of the movement stroke, the lock pin 52 stops at the position shown by the solid line in Figure 5. At this time, the disk portion 522 of the lock pin 52 is positioned within the lock groove 154. As a result, the lock pin 52 engages within the lock groove 154. In this state, if the shoji screen 20 is forcibly moved toward the outside of the room, the lock pin body 521 of the lock pin 52 abuts against the tip portion 153a of the lock groove forming plate 153. As a result, the shoji screen 20 cannot move in the opening direction and is locked.

As shown in FIG. 6, the vertical length of the lock groove forming plate 153, i.e., the vertical length L2 of the lock groove 154, is set so that the lock pin 52 stopped in the locked state does not slip out upward from the lock groove 154. Specifically, the position of the upper end 153b of the lock groove forming plate 153 is positioned above the position of the upper end of the lock pin 52 stopped in the locked state. As a result, even if an external force acts on the shoji screen 20 in the closed state to forcibly deform the door edge side upward, the engagement between the lock pin 52 and the lock groove 154 will not be released.

The lock groove forming plate 153 is bent from the outside to the inside of the room. Therefore, even if a large external force acts on the lock groove forming plate 153 toward the outside of the room via the lock pin 52 by forcibly opening the closed shoji screen 20, the lock groove forming plate 153 will not twist. The lock groove forming plate 153 is unlikely to deform in a direction that would cause the lock pin 52 to leave the lock groove 154 toward the outside of the room, providing excellent security.

When the operator operates the handle 55 in the unlocking direction, the slide plate 51 of the slide lock mechanism 50 moves downward in conjunction with the operation of the handle 55. As a result, the lock pin 52 moves downward beyond the lock groove forming plate 153 and disengages from the lock groove 154. This releases the engagement between the lock pin 52 and the lock groove 154, and the shoji screen 20 is unlocked.

Thus, the receiving bracket 15 of this embodiment includes a flat receiving bracket body 151, screw holes 152, 152 for fixing that open at both the upper and lower ends of the receiving bracket body 151, and a lock groove 154 that is integral with the receiving bracket body 151 and receives the lock pin 52 of the cremone lock from the outside of the receiving bracket body 151 between the screw holes 152, 152 and engages by inserting it along the up-down direction of the receiving bracket body 151. The lock groove 154 is raised in the visible direction from a part of the outside edge 151a of the receiving bracket body 151 and is opened in the up-down direction and the indoor side of the receiving bracket body 151 by bending it toward the inside of the room. Since this receiving bracket body 151 does not have a part that rises in the visible direction from the vicinity of the screw holes 152, 152, there is no risk of the screwing jig interfering with the receiving bracket body 151 when the receiving bracket 15 is screwed to the frame body 10 on the production line. Therefore, it can be easily screwed to the frame body 10. Moreover, because the only part of the receiving metal fitting 15 that needs to be folded is the part of the lock groove forming plate 153, the amount of metal material used is minimal. Therefore, this receiving metal fitting 15 can be manufactured at low cost, with a significant reduction in the amount of metal material required compared to conventional methods.

As shown in FIG. 6, the receiving bracket body 151 has a notch 155 on the outdoor side edge 151a adjacent to the lock groove forming plate 153 and the lock groove 154. The notch 155 is located below the lock groove forming plate 153 and the lock groove 154 and above the lower screw hole 152. The notch 155 is formed so as to cut out a large rectangular shape in the receiving bracket body 151 from the outdoor side edge 151a of the receiving bracket body 151 to the center of the receiving bracket body 151 in the width direction.

The cutout 155 prevents interference between the lock pin 52 and the receiving metal body 151. More specifically, the door end of the shoji screen 20 moves in an arc-shaped trajectory when moving in the closing direction. Therefore, if the position of the lock pin 52 is slightly displaced outward due to deformation of the shoji screen 20, etc., the lock pin 52 may interfere with the receiving metal body 151. However, since the cutout 155 is positioned on the movement trajectory of the lock pin 52 from the outside of the room toward the receiving metal body 151, even if the position of the lock pin 52 is slightly displaced outward, the lock pin 52 passes through the cutout 155 and does not interfere with the receiving metal body 151.

As shown in Figure 1, the receiving bracket 15 of this embodiment is attached to the door-end vertical frame 14 on the left side of the fitting 1 as viewed from the inside of the room. When the door-end side of the shoji screen 20 is placed on the right side of the fitting 1 shown in Figure 1, a receiving bracket 15 having a structure in which the receiving bracket 15 shown in Figure 6 is reversed from left to right is used. However, as shown in Figures 8 and 9, a receiving bracket 15A having a structure that can be used on both sides may also be used. In the receiving bracket 15A shown in Figures 8 and 9, parts with the same reference numerals as the receiving bracket 15 shown in Figures 5, 6, and 7 indicate parts with the same configuration. Therefore, the above explanation is used to refer to the overlapping explanations, and will be omitted in the following explanation.

The receiving bracket body 151 of the receiving bracket 15A is formed to be longer in the vertical direction than the receiving bracket body 151 of the receiving bracket 15 described above. The lock groove forming plate 153 is disposed in the vertical center of the receiving bracket body 151. The vertical length L3 of the lock groove forming plate 153 is approximately twice as long as the vertical length L2 of the lock groove forming plate 153 of the receiving bracket 15. An inclined surface 153c is formed on both the upper and lower ends of the tip portion 153a of the lock groove forming plate 153. The cutout portion 155 is provided on the same side edge portion on the upper and lower sides of the lock groove forming plate 153. Therefore, this receiving bracket 15A has a vertically symmetrical structure across the lock groove 154.

The receiving bracket 15A shown in FIG. 8 is attached to the left door end vertical frame 14 of the fitting 1 shown in FIG. 1, similar to the receiving bracket 15 described above. As a result, the receiving bracket 15A receives the lock pin 52 of the shoji screen 20 from the lower cutout portion 155 into the receiving bracket body 151, as shown by the dashed line in FIG. 8. When the lock pin 52 then moves upward in conjunction with the locking operation of the handle 55, the receiving bracket 15A inserts the lock pin 52 into the lock groove 154 and engages it.

When the door edge of the shoji screen 20 is placed on the right side of the fitting 1 shown in Figure 1, the receiving bracket 15A is attached upside down as shown in Figure 9 to the door edge vertical frame on the right side of the fitting 1. As a result, the receiving bracket 15A receives the lock pin 52 of the shoji screen 20 from the notch 155 on the opposite side to that in Figure 8, as shown by the dashed line in Figure 9, into the receiving bracket body 151. After that, when the lock pin 52 moves upward in conjunction with the locking operation of the handle 55, the receiving bracket 15A inserts the lock pin 52 into the lock groove 154 and engages it.

In this way, the receiving bracket 15A has a symmetrical structure in the vertical direction across the lock groove 154. Therefore, regardless of whether the leading edge of the shoji screen 20 is placed on the left or right side, it can be installed and used upside down. This makes the receiving bracket 15A highly versatile.

In the above embodiment, the fitting 1 is a vertical sliding window, but the fitting may be a horizontal sliding window. The receiving brackets 15, 15A of the Cremon lock of this embodiment can be widely applied to various fittings that have opening and closing sliding screens.

15, 15A: Bracket, 151: Bracket body, 151a: Exterior edge, 152: Screw hole, 154: Lock groove, 155: Notch, 52: Lock pin

Claims (2)

A flat receiving bracket body,
a screw hole for fixing the metal fitting body, the screw hole being opened at both upper and lower ends of the metal fitting body;
A lock groove is provided integrally with the receiving metal body, and receives a lock pin of a cremone lock from the outside of the receiving metal body between the screw holes and engages the lock pin by inserting it along the vertical direction of the receiving metal body.
The lock groove is raised in the front direction from a part of the outdoor side edge of the receiving metal body and is bent toward the indoor side, so that it is open in the vertical direction of the receiving metal body and to the indoor side,
The receiving hardware body of a cremone lock has a cutout portion at the outdoor edge portion adjacent to the locking groove, the receiving hardware body being cut out from the outdoor edge portion to the center of the width of the receiving hardware body, thereby preventing interference between the locking pin and the receiving hardware body . The receiving metal fitting of a cremone lock according to claim 1, having a symmetrical structure in the vertical direction across the lock groove.

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