Fittings

Abstract

To provide a fixture that can engage an outer fastener on a frame in a snapping manner and can simply de-mount it from the frame.SOLUTION: A fixed window 1 comprises a window frame 10, a panel placed in the window frame 10 and a release fastener 60 mounted to the window frame 10 . The release fastener 60 has a detachable retaining body 61 and an elastically deformable locking piece 65 projecting from the detaching retaining body 61 in the X-axis direction. The window frame 10 has an engaging surface portion 48 formed with a slit 481 into which the locking piece 65 is inserted. The slit 481 has a narrow portion 485 whose width in the X-axis direction is smaller than the projecting dimension of the locking piece 65, and a wide portion 486 whose width in the X-axis direction is greater than the projecting dimension of the locking piece 65. The engaging surface portion 48 is engaged with the locking piece 65 when the locking piece 65 is arranged in the narrow portion 485, and when the locking piece 65 is arranged in the wide portion 486, the locking piece 65 is not engaged.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to fittings such as fixed windows that are provided with fasteners that fasten a panel to a frame such as a window frame when the panel is installed in the frame. [Background technology]

[0002] Conventionally, a fixed sash unit in which a panel is attached to a sash frame (frame) has been known as a fitting (see Patent Document 1). The sash frame includes an upper frame, a lower frame, and left and right vertical frames. A recess is formed in the lower frame to receive the edge of the panel. The upper frame and the left and right vertical frames are formed with respective frame bodies and joists to receive the edge of the panel. A support metal fitting is attached to the upper frame. An insertion opening and an inward protruding piece are formed in the upper frame, and a support metal fitting (detachment fastener) is inserted into the insertion opening, and a locking piece formed by hammering out a part of the support metal fitting is snap-fitted into the inward protruding piece. The support metal fitting attached to the upper frame prevents the panel from coming off the sash frame before the joists are attached to the frame bodies of the upper frame and the left and right vertical frames. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2001-207741 A Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, in the fixed sash unit described in Patent Document 1, the locking piece of the support fitting snaps into engagement with the inward protruding piece of the upper frame, making it easier to attach the support fitting to the upper frame compared to screwing the support fitting to the upper frame, etc. However, in this fixed sash unit, when releasing the engagement of the locking piece with the inward protruding piece, it is thought that the locking piece must be retracted once from the inward protruding piece, and therefore it is time-consuming to remove the support fitting from the upper frame. In the fixed sash unit described in Patent Document 1, the support brackets are engaged with the upper frame, but just as with the above, when engaging the support brackets with the left and right vertical frames, it takes time to remove the support brackets from the left and right vertical frames.

[0005] SUMMARY OF THE PRESENT EMBODIMENT It is an object of the present invention to provide a fitting that allows a release fastener to be snapped into engagement with a frame and easily removed from the frame. [Means for solving the problem]

[0006] The building fixture of the present invention comprises a frame, a panel to be placed within the frame, and a fastener attached to the frame, the fastener having a fastener body with a retaining portion arranged facing the panel in an out-of-plane direction, and a locking piece whose tip protrudes from the fastener body in the find direction of the frame, the frame having an engagement surface portion with a slit formed therein into which the locking piece is inserted, the slit having a narrow portion whose width dimension in the find direction of the frame is smaller than the protruding dimension of the locking piece, and a wide portion whose width dimension in the find direction of the frame is larger than the protruding dimension of the locking piece, the locking piece being configured to be elastically deformable until its protruding dimension becomes smaller than the width dimension of the narrow portion, and the engagement surface portion is in an engaged state with the locking piece when the locking piece is placed in the narrow portion, and is in a disengaged state with respect to the locking piece when the locking piece is placed in the wide portion. Effect of the Invention

[0007] According to the present invention, a fitting can be provided in which a release fastener can be snapped into a frame and easily removed from the frame. [Brief description of the drawings]

[0008] [Figure 1] FIG. 2 is an external view showing a fixed window according to an embodiment of the present invention. [Diagram 2] FIG. 4 is a vertical cross-sectional view showing a fixed window according to the embodiment. [Diagram 3] FIG. 4 is a cross-sectional view showing a fixed window according to the embodiment. [Figure 4] FIG. 4 is a perspective view showing an upper main part of a fixed window according to the embodiment. [Diagram 5] FIG. 4 is a perspective view showing a lower main part of the fixed window according to the embodiment. [Figure 6] FIG. 4 is a cross-sectional view showing a main part of the fixed window according to the embodiment. [Figure 7] FIG. 4 is an explanatory diagram showing a slit of a fixed window according to the embodiment. [Figure 8] FIG. 4 is a perspective view showing a stopper for the fixed window according to the embodiment. [Figure 9] FIG. 11 is a perspective view showing a main part of a first modified example of the fixed window. [Figure 10] FIG. 11 is a perspective view showing a main portion of a second modified example of the fixed window. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] [Configuration of this embodiment] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In Figures 1 to 5, a fixed window 1 (fixed window, fixed window) as a fixture in this embodiment comprises a window frame 10 (frame body) as a frame, a panel 50 such as a glass panel that is placed within the window frame 10, and a release fastener 60 that is attached to the window frame 10. In the following description, the left-right direction of the fixed window 1 is defined as the X-axis direction, the up-down direction of the fixed window 1 is defined as the Y-axis direction, and the projection direction (out-of-plane direction) of the fixed window 1 is defined as the Z-axis direction. The X, Y, and Z axis directions are mutually perpendicular.

[0010] The window frame 10 includes an upper frame 20 (upper frame material), a lower frame 30 (lower frame material), and left and right vertical frames (vertical frame materials) 40 as frame materials. The upper frame 20, the lower frame 30, and the left and right vertical frames 40 are arranged along the four peripheral edges of a rectangular panel 50, and the left and right vertical frames 40 are formed similarly to each other as shown in FIG. 3 and arranged in the opposite direction. The upper frame 20, the lower frame 30, and the left and right vertical frames 40 include metal frame materials 21, 31, 41 on the outdoor side and resin frame materials 22, 32, 42 on the indoor side attached to the metal frame materials 21, 31, 41. In this embodiment, the metal frame materials 21, 31, 41 are made of aluminum, and the resin frame materials 22, 32, 42 are made of synthetic resin. The metal frame materials 21, 31, 41 are engaged with battens 23, 33, 43. The flaps 23, 33, 43 are disposed on the exterior side of the panel 50 and press down on its exterior surface 51, while the resin frame materials 22, 32, 42 are disposed on the interior side of the panel 50 and abut against its interior surface 52. The metal frame material 21 and the resin frame material 22 with which the flaps 23 are engaged form a recess 24 into which the upper edge of the panel 50 fits. The metal frame material 31 and the resin frame material 32 with which the flaps 33 are engaged form a recess 34 into which the lower edge of the panel 50 fits. The metal frame material 41 and the resin frame material 42 with which the flaps 43 are engaged form a recess 44 into which the vertical edge of the panel 50 fits. In the upper frame 20, the lower frame 30 and the left and right vertical frames 40, metal frame materials 21, 31, 41 and resin frame materials 22, 32, 42 are combined to form the main body of each frame material, and push edges 23, 33, 43 are engaged with this main body.

[0011] As shown in Fig. 3 and Fig. 5, the metal frame material 41 of the vertical frame 40 has a projection surface portion 45 along the Z-axis direction, a sight surface portion 46 that is continuous with the indoor end of the projection surface portion 45 and along the X-axis direction, an extension piece portion 47 that extends from the inner peripheral end of the sight surface portion 46 toward the outside of the room in the Z-axis direction, an engagement surface portion 48 that extends from the extension piece portion 47 toward the outer periphery in the X-axis direction, and a mounting piece portion 49 that extends from the projection surface portion 45 to the outer periphery in the X-axis direction. An engagement portion 451 is formed in a portion of the projection surface portion 45 that is on the outside of the sight surface portion 46, and the engagement portion 451 engages with the pressing edge 43. An engagement piece 471 is formed on the extension piece portion 47 and extends to the inner periphery in the X direction, and the resin frame material 42 engages with the engagement piece 471.

[0012] In the engagement surface portion 48, a slit 481 is formed on one end side in the Y-axis direction as shown in Fig. 4A and 4B, and a slit 482 is formed on the other end side in the Y-axis direction as shown in Fig. 5A and 5B. The slits 481 and 482 are aligned along the Y-axis direction. In addition, in the engagement surface portion 48, a hole 483 (screw hole) arranged below the slit 481 and a hole 484 (screw hole) arranged above the slit 482 are formed. The slit 481 has a narrow portion 485 and a wide portion 486. The narrow portion 485 and the wide portion 486 are each formed in a rectangular shape as shown in Fig. 7, and are continuous vertically. The narrow portion 485 is formed by left and right vertical edges 487, 488 along the Y-axis direction and a horizontal edge 489 along the X-axis direction. A width dimension L1 between the vertical edges 487, 488 of the narrow portion 485 in the X-axis direction is smaller than a width dimension L2 (described later) of the wide portion 486, and is also smaller than a protruding dimension L3 of the locking piece 65 (described later). The wide portion 486 is formed by left and right vertical edges 490, 491 along the Y-axis direction, a horizontal edge 492 along the X-axis direction, and a continuous edge 493 continuing to the vertical edges 491, 488. The vertical edge 490 is continuous with the vertical edge 487 and is flush with the Y-axis direction. A width dimension L2 between the vertical edges 490, 491 of the wide portion 486 in the X-axis direction is larger than a protruding dimension L3 of the locking piece 65. Furthermore, the dimensions in the Y-axis direction of the narrow portion 485 and the wide portion 486 are equal to or greater than the dimension in the Y-axis direction of the locking piece 65. In this embodiment, the dimensions in the Y-axis direction of the narrow portion 485 and the wide portion 486 are approximately equal to each other. Slit 482 is formed in a manner generally similar to slit 481, and is disposed upside down compared to slit 481. For this reason, in slit 481, narrow portion 485 is disposed above wide portion 486 and on one end side of vertical frame 40 (upper end side, upper frame 20 side), whereas in slit 482, narrow portion 485 is disposed below wide portion 486 and on the other end side of vertical frame 40 (lower end side, lower frame 30 side). Vertical edges 487, 490 of slits 481, 482 are disposed on the inner periphery side of vertical frame 40 in the X-axis direction, and vertical edges 488, 491 of slits 481, 482 are disposed on the outer periphery side of vertical frame 40 in the X-axis direction.

[0013] As shown in Fig. 4(A) and Fig. 5(A), screws 495 serving as movement restricting devices are screwed into the holes 483, 484 of the engagement surface portion 48. In this embodiment, the screw 495 has a head portion 496 that abuts against the exterior surface of the engagement surface portion 48, and a threaded portion 497 that screws into the holes 483, 484. The screw 495 may be configured as an anti-theft screw having a groove portion of a shape different from the +-shaped and --shaped groove portions, for example, a groove portion having five or more radial grooves formed in the head portion 496. Here, hole 483 is formed at a position where wide portion 486 is sandwiched between narrow portion 485 of slit 481 in the Y-axis direction, and head 496 of screw 495 screwed into hole 483 is disposed protruding from engagement surface portion 48 to the outside of the room. Hole 484 is formed at a position where wide portion 486 is sandwiched between narrow portion 485 of slit 482 in the Y-axis direction, and head 496 of screw 495 screwed into hole 484 is disposed protruding from engagement surface portion 48 to the outside of the room.

[0014] The release fastener 60 in this embodiment is made of a metal fitting, and has a release fastener main body 61 and a locking piece 65, as shown in FIGS. The retaining body 61 has a main body piece 611 along the Z-axis direction, holding pieces 612, 613, 614 (holding parts) that are bent and extended from the outer edge of the room along the Y-axis direction of the main body piece 611 to the inner periphery in the X-axis direction, abutting pieces 615 that are continuous with the holding pieces 613 and extend to the outer periphery in the X-axis direction from the main body piece 611, protruding pieces 616, 617 that are bent and extended from the indoor edge of the main body piece 611 along the Y-axis direction to the outer periphery in the X-axis direction, and an insertion piece 618 that extends from the main body piece 611 in the Z-axis direction at the position of the protruding pieces 616, 617. The tip edge 615A of the abutting piece 615 is bent in the Z-axis direction toward the locking piece 65 side. The holding piece 613 is disposed between the holding pieces 612, 614. 6, a resin member 620 that comes into contact with the exterior surface 51 of the panel 50 is attached to the holding piece portion 613. The pair of protruding pieces 616, 617 are provided in the release fastener 60 at positions that sandwich the locking piece 65 therebetween.

[0015] In this embodiment, the locking piece 65 is formed by cutting out the insertion piece portion 618 into a rectangular plate shape. The locking piece 65 has a base end 63 along the Y-axis direction that is continuous with the insertion piece portion 618, and a tip 64 along the Y-axis direction that protrudes from the insertion piece portion 618 to the outer periphery in the X-axis direction. The tip 64 is disposed on the exterior side of the room with respect to the base end 63. The locking piece 65 is configured to be elastically deformable in the X-axis direction, and in the normal state, the protruding dimension L3 in the X-axis direction relative to the insertion piece portion 618 is larger than the width dimension L1 of the narrow portion 485, but can become smaller than the width dimension L1 of the narrow portion 485 by elastic deformation. Therefore, in the release fastener 60, the locking piece 65 comes into contact with the narrow portion 485 (the vertical edge 488 in this embodiment) and elastically deforms, so that the insertion piece portion 618 can be inserted into the narrow portion 485 in the X-axis direction. Also, as described above, the width dimension L2 of the wide portion 486 is larger than the protruding dimension L3 of the locking piece 65 in the normal state, so that the release fastener 60 can be easily pulled out in the Z-axis direction by disposing the insertion piece portion 618 in the wide portion 486.

[0016] The procedure for installing the panel 50 within the window frame 10 in the fixed window 1 according to this embodiment will be described below. First, the panel 50 is placed in the window frame 10 in a state where the battens 23, 33, 43 are not engaged with the main bodies of the upper frame 20, the lower frame 30, and the left and right vertical frames 40, and the indoor surface 52 is abutted against the resin frame materials 22, 32, 42. The screws 495 are screwed into the holes 483, 484 in advance. Next, the release fasteners 60 are attached to the upper and lower parts of the left and right vertical frames 40. Specifically, the insertion piece 618 of each release fastener 60 is inserted in the Z-axis direction from the outside of the room into the narrow parts 485 of the slits 481, 482 in the left and right vertical frames 40. At this time, the locking piece 65 passes through the narrow part 485 from the outside of the room while undergoing elastic deformation and returns to its original shape, and the tip 64 snaps into engagement with the indoor surface 48B of the engagement surface part 48 in the X-axis direction as shown in FIG. 6. The protruding pieces 616, 617 are arranged along the outdoor surface 48A of the engagement surface part 48. In this way, the locking piece 65 is engaged with the engagement surface part 48, and the upper release fastener 60 is attached to the upper part of the engagement surface part 48 as shown in FIG. 4(A), and the lower release fastener 60 is attached to the lower part of the engagement surface part 48 as shown in FIG. 5(A). In addition, when the locking piece 65 is engaged with the engagement surface portion 48, the retaining piece portions 612, 613, 614 are positioned on the exterior surface 51 side of the panel 50, the resin member 620 attached to the retaining piece portion 613 abuts against the exterior surface 51 of the panel 50, and the tip edge portion 615A of the abutting piece portion 615 abuts against the engagement portion 451 of the projection surface portion 45 in the X-axis direction. 4(A), the protruding piece 617 of the upper release fastener 60 with the insertion piece portion 618 inserted into the slit 481 is disposed in a position (a position in which the wide portion 486 is sandwiched in the Y-axis direction between the screw 495 whose threaded portion 497 is screwed into the hole 483) above the head 496 (a position in which the wide portion 486 is sandwiched in the Y-axis direction between the screw 495 and the narrow portion 485 of the slit 481) so that the upper release fastener 60 can be prevented from coming off the engagement surface portion 48 even if the upper release fastener 60 tries to fall downward due to its own weight, since the protruding piece 617 is supported by the screw 495. 5(A), the protruding piece 616 of the lower release fastener 60 with the insertion piece portion 618 inserted into the slit 482 is disposed in a position above the screw 495 with the threaded portion 497 screwed into the hole 484 in the Y-axis direction and capable of abutting against the head 496 (a position in which the wide portion 486 is sandwiched in the Y-axis direction between the screw 495 and the narrow portion 485 of the slit 482). In this embodiment, the screw 495 is configured as an anti-theft screw as described above, and therefore the release fastener 60 cannot be removed from the engagement surface portion 48 without using a special tool corresponding to the screw 495. As described above, by attaching the release fastener 60 to the engagement surface portion 48, the release fastener 60 can hold the panel 50 within the window frame 10 even before the exterior surface 51 of the panel 50 is pressed by the pressing edges 23, 33, 43, thereby preventing the panel 50 from accidentally falling to the outside. Next, the ridges 23, 33, 43 are engaged with the main bodies of the upper frame 20, the lower frame 30 and the left and right vertical frames 40, and the ridges 23, 33, 43 press down on the exterior surface 51 of the panel 50. In this manner, the panel 50 is installed within the window frame 10.

[0017] The procedure for removing the panel 50 from the window frame 10 when the panel 50 is damaged will be described below. First, the battens 23, 33, 43 are removed from the main bodies of the upper frame 20, the lower frame 30 and the left and right vertical frames 40. Next, the screws 495 are removed from the holes 483 and 484 using a special tool, and the release fastener 60 is made movable in the Y-axis direction. Next, as shown in FIG. 4(B), the upper release fastener 60 is removed from the engagement surface portion 48, and as shown in FIG. 5(B), the lower release fastener 60 is removed from the engagement surface portion 48. Specifically, the upper release fastener 60 moves downward along the Y-axis direction, and the insertion piece portion 618 is placed in the wide portion 486 of the slit 481, and the engagement between the locking piece 65 and the engagement surface portion 48 is released to an engaged state. Next, the release fastener 60 moves to the outside of the room in the Z-axis direction, and the locking piece 65 is pulled out from the wide portion 486 to the outside of the room. Also, the lower release fastener 60 moves upward along the Y-axis direction, and the insertion piece portion 618 is placed in the wide portion 486 of the slit 482, and the engagement between the locking piece 65 and the engagement surface portion 48 is released to a non-engaged state. Next, the release fastener 60 moves to the outside of the room in the Z-axis direction, and the locking piece 65 is pulled out from the wide portion 486 to the outside of the room. In this way, even if the release fastener 60 is snap-fitted to the engagement surface portion 48 , the release fastener can be easily removed from the engagement surface portion 48 by pulling the locking piece 65 out of the wide portion 486 . By removing the release fastener 60, the panel 50 can be removed from within the window frame 10, and can be replaced with a new panel 50, for example.

[0018] [Variations] In the above embodiment, the screw 495 is attached to the engagement surface portion 48, but this is not limited thereto. For example, as in a first modified example shown in FIG. 9, the protrusion 617 of the release fastener 60, into which the engagement piece 65 is inserted into the upper slit 481, may be extended downward in the Y-axis direction along the slit 481, and the screw 495 may be screwed into and attached to this extended portion, while a restriction hole 70 may be formed in a portion of the engagement surface portion 48 corresponding to the screw 495, and the screw 495 may be inserted into this restriction hole 70 to restrict movement of the release fastener 60 in the Y-axis direction (particularly downward movement). In addition, the protrusion 616 of the release fastener 60, into which the engagement piece 65 is inserted into the lower slit 482, may be extended upward in the Y-axis direction along the slit 482, and the screw 495 may be screwed into and attached to this extended portion, while a restricting hole (not shown) may be formed in a portion of the engagement surface portion 48 corresponding to the screw 495, and the screw 495 may be inserted into this restricting hole, thereby restricting the movement of the release fastener 60 in the Y-axis direction (particularly upward movement). Also, for example, the screw 495 may be arranged as in the second modified example shown in FIG. 10. FIG. 10 shows the state immediately before the release fastener 60 is inserted into the upper slit 481 in the Z-axis direction and engaged with the engagement surface portion 48. In FIG. 10, the screw 495 is attached to the protruding piece 617 as in the first modified example, but is inserted into the wide portion 486 in the engaged state of the locking piece 65 and the engagement surface portion 48. As shown in FIG. 10, when the screw 495 is inserted into the wide portion 486 of the upper slit 481 and arranged, the downward movement of the release fastener 60 is restricted. Also, although not shown, when the screw 495 is attached to the protruding piece 617 and inserted into the wide portion 486 of the lower slit 482 and arranged, the upward movement of the release fastener 60 is restricted. In the second modified example, the aforementioned restriction on movement of the release fastener 60 is released by removing the screw 495 from the protruding piece 617 (616), so that the release fastener 60 can be removed. Note that in the second modified example, the aforementioned extension portion is not formed on the protruding piece 617 (616) since it is not necessary. In this manner, the screw 495 may be removably attached to the release fastener 60 and / or the engagement surface 48 .

[0019] In the above embodiment, the screw 495 is threaded into the hole 484, and the lower release fastener 60 cannot be removed from the engagement surface portion 48 without a special tool. However, in cases where it is acceptable for the lower release fastener 60 to be removed without using a special tool, it is not necessary to attach the screw 495 by threading it into the hole 484. In addition, in the above embodiment, the screw 495 is screwed into the hole 483, and this screw 495 is configured to suppress the downward movement of the upper release fastener 60. However, in cases where the locking piece 65 is strongly engaged with the engagement surface portion 48 to the extent that the upper release fastener 60 does not move downward due to its own weight, it is not necessary to screw the screw 495 into the hole 483 for installation. In the embodiment, upper and lower slits 481, 482 are formed on the engagement surface 48 of the vertical frame 40, but this is not limiting, and one slit (not shown) may be formed at approximately the middle position in the longitudinal direction of the left and right vertical frames 40. In this case, one release fastener 60 is attached to each of the left and right vertical frames 40. In the above embodiment, the left and right vertical frames 40 have the engagement surface portion 48 in which the slits 481, 482 are formed, but instead of or in addition to this, the upper frame 20 and the lower frame 30 may have the engagement surface portion 48, and the slits 481, 482 or a slit disposed at a substantially middle position in the longitudinal direction of the upper frame 20 or the lower frame 30 may be formed in the engagement surface portion 48, and the release fastener 60 may be attached to the upper frame 20 and the lower frame 30. Furthermore, a screw (not shown) that suppresses the movement of the release fastener 60 attached to the upper frame 20 and the lower frame 30 in the X-axis direction and suppresses the release fastener 60 from being released from the engagement surface portion 48 may be screwed and attached to the upper frame and the lower frame 30. Also, for example, in a configuration in which the main body of the lower frame 30 itself forms the recess 34 and does not have the pressing edge 33, the release fastener 60 and the screw may be attached only to the upper frame 20, and the release fastener 60 and the screw may not be attached to the lower frame 30. In the above embodiment, the window frame 10 is provided with the pressing edges 23, 33, 43 that press the exterior surface 51 of the panel 50, and the panel 50 is arranged in the frame from the exterior side. Alternatively, the frame body may abut against the exterior surface 51 of the panel 50, and the pressing edge that engages with the frame body may press the interior surface 52 of the panel 50. In this case, the panel 50 is arranged in the frame from the interior side, and there is a risk that the panel 50 will fall inside the room before the pressing edge is attached. Therefore, the window frame 10 may be formed with an engagement surface portion to which the release fastener 60 is attached from the interior side, and the release fastener 60 attached to the engagement surface portion may prevent the panel 50 from falling inside the room. In this case, the retaining pieces 612, 613, 614 of the release fastener 60 are arranged on the interior surface 52 side of the panel 50. In the above embodiment, the detachment fastener 60 is formed with a pair of upper and lower protrusions 616, 617, and is configured to be capable of being attached to both the slit 481 side and the slit 482 side of the engagement surface portion 48; however, the detachment fastener 60 having the protrusion 617 formed without the protrusion 616 may be inserted into the slit 481, and the detachment fastener 60 having the protrusion 616 formed without the protrusion 617 may be inserted into the slit 482. In the above embodiment, a fixed window 1 in which a window frame 10 is used as a frame and a panel 50 is installed within the window frame 10 is described as a fixture. However, various types of windows in which a frame is a frame (not shown) provided on the four peripheral edges of a panel 50 that is movably arranged within the window frame 10 may also be used as a fixture.

[0020] [Summary of the invention] The building fixture of the present invention comprises a frame, a panel to be placed within the frame, and a fastener attached to the frame, the fastener having a fastener body with a retaining portion arranged facing the panel in an out-of-plane direction, and a locking piece whose tip protrudes from the fastener body in the find direction of the frame, the frame having an engagement surface portion with a slit formed therein into which the locking piece is inserted, the slit having a narrow portion whose width dimension in the find direction of the frame is smaller than the protruding dimension of the locking piece, and a wide portion whose width dimension in the find direction of the frame is larger than the protruding dimension of the locking piece, the locking piece being configured to be elastically deformable until its protruding dimension becomes smaller than the width dimension of the narrow portion, and the engagement surface portion is in an engaged state with the locking piece when the locking piece is placed in the narrow portion, and is in a disengaged state with respect to the locking piece when the locking piece is placed in the wide portion. According to the fitting of the present invention, the locking piece can be inserted into the narrow part by pressing it against the narrow part and elastically deforming it, and since the width dimension of this narrow part is smaller than the projection dimension of the locking piece in its normal state, the locking piece that has restored its elastic deformation can snap-fit ​​into the engagement surface of the frame. Also, since the width dimension of the wide part is larger than the projection dimension of the locking piece, the locking piece can be disposed on the wide part to release the engagement, and the release fastener can be easily removed from the frame.

[0021] In the building fixture of the present invention, the frame comprises an upper frame member, a lower frame member and left and right vertical frame members, and the slits are formed respectively at one end side and the other end side in the longitudinal direction of at least one of the upper frame member, the lower frame member and the left and right vertical frame members, and the narrow portion of the slit at the one end side is positioned closer to the one end side in the longitudinal direction of the frame material than the wide portion of the slit, and the narrow portion of the slit at the other end side is positioned closer to the other end side in the longitudinal direction of the frame material than the wide portion of the slit. With this configuration, the fastener can be positioned closer to one end or the other end of the frame, more effectively preventing the panel from coming off the frame, compared to, for example, when the wide portion on one end is positioned closer to that end than the narrow portion, or when the wide portion on the other end is positioned closer to the other end than the narrow portion.

[0022] In the building fixture of the present invention, a movement control device may be removably attached to at least one of the detachable fastener and the engagement surface portion, which controls the movement of the detachable fastener in the direction along the slit when the locking piece is engaged with the engagement surface portion. With this configuration, even if the detached fastener attempts to unintentionally move in a direction along the slit, the movement can be restricted by the movement restricting device, and the detached fastener can be positioned in a position where it will come off the engagement surface portion, reducing the risk of it coming off the engagement surface portion.

[0023] In the building fixture of the present invention, the movement control device is removably attached to the engagement surface portion by protruding from the engagement surface portion at a position where the wide portion is sandwiched between the narrow portion, and the release fastener has a protrusion arranged along the engagement surface portion, and the protrusion may be arranged in a position where it can abut against the movement control device when the locking piece is engaged with the engagement surface portion. According to this configuration, when the movement restriction device is attached to the engagement surface portion, even if the release fastener attempts to move so that the engagement piece moves from the narrow portion toward the wide portion, the movement of the release fastener is restricted by the movement restriction device, and the engagement state in which the engagement piece is positioned in the narrow portion is maintained, thereby preventing the release fastener from coming off the frame. In addition, when the movement restriction device is removed from the engagement surface portion, the restriction on the movement of the detached fastener by the movement restriction device is released, and the detached fastener can be moved to position the locking piece on the wide portion and removed from the frame.

[0024] In the building fixture of the present invention, the frame comprises an upper frame member, a lower frame member and left and right vertical frame members, the vertical frame members have the engagement surface portion, the slits are formed respectively on the upper and lower sides of the engagement surface portion, the narrow portion of the upper slit is positioned on the upper frame side relative to the wide portion, and the narrow portion of the lower slit is positioned on the lower frame side relative to the wide portion, and the movement control device is positioned in a position to sandwich the wide portion between itself and the narrow portion of the upper slit. With this configuration, even if the detached fastener with its engaging piece inserted into the upper slit attempts to move downward due to its own weight, the downward movement of the detached fastener can be restricted by the movement restricting device, thereby preventing the detached fastener from coming off the frame. Furthermore, even if the detachable fastener with its engaging piece inserted into the lower slit attempts to move downward due to its own weight, etc., the wide portion of the lower slit is positioned above the narrow portion, so that the detachable fastener can be prevented from detaching from the engagement surface without the need for a separate movement control device to sandwich the wide portion between the narrow portion of the lower slit. Furthermore, by not providing a separate movement restricting device at the position where the wide portion is sandwiched between the narrow portion of the lower slit, there is no need to remove this movement restricting device, and the release fastener with the locking piece inserted into the lower slit can be easily removed from the engagement surface portion.

[0025] In the fixture of the present invention, the release fastener has a protrusion arranged along the engagement surface portion, and the protrusions may be provided in a pair at positions on the release fastener that sandwich the locking piece therebetween. With such a configuration, for example, when attaching the detachable fastener to a vertical frame member, the detachable fastener can be attached in either the upside or downside direction, and when attaching the detachable fastener to an upper or lower frame member, for example, the detachable fastener can be attached in either the leftside or rightside direction, thereby improving the versatility of the detachable fastener.

[0026] In the fixture of the present invention, the movement restricting device may be constituted by an anti-theft screw having a head and a threaded portion, with a groove portion of a shape different from the +-shaped and --shaped groove portions formed in the head portion. According to such a configuration, the movement restricting device cannot be removed with a Phillips screwdriver or a - screwdriver, and a special tool corresponding to the above-mentioned anti-theft screw must be used, thereby improving theft prevention.

[0027] In the fixture of the present invention, the release fastener may be composed of metal fittings, and the retaining portion may be provided with a resin member that abuts against the panel. With this configuration, the strength of the fastener can be improved compared to, for example, a case in which the entire fastener is made of resin, and since a resin member abuts against the panel, the metal parts of the fastener can be prevented from damaging the panel.

[0028] In the building fixture of the present invention, the frame comprises an upper frame member, a lower frame member and left and right vertical frame members, and at least the upper frame member and the left and right vertical frame members comprise a main body having a visible surface portion that is positioned on one of the exterior and interior faces of the panel, and a push edge that is positioned on the other of the exterior and interior faces of the panel and attached to the main body, and the main bodies of the left and right vertical frame members have engagement surface portions to which the release fasteners are attached, and the retaining portion may be positioned on the other of the exterior and interior faces of the panel. With this configuration, by attaching the fall-off fasteners to the left and right vertical frame members even before the push-edges are attached to the main body of the upper frame member and the left and right vertical frame members, the risk of the panel falling over and coming off the frame can be reduced, thereby improving the ease of assembly of the building materials. [Explanation of symbols]

[0029] 1...Fixed window (fitting), 10...Window frame (frame), 20...Upper frame (upper frame material), 21,31,41...Metal frame material, 22,32,42...Resin frame material, 23,33,43...Bullet edge, 24,34,44...Recess, 30...Lower frame (lower frame material), 40...Vertical frame (vertical frame material), 45...Projection surface portion, 451...Engagement portion, 46...Finding surface portion, 47...Extending piece portion, 471...Engagement piece, 48...Engagement surface portion, 481,482...Slit, 483,484...Hole, 485...Narrow width portion, 486...Wide width portion, 487,488,490,491...Vertical edge , 489, 492...side edge, 48A...exterior surface, 48B...interior surface, 49...mounting piece portion, 493...continuous edge, 495...screw, 496...head, 497...screw portion, 50...panel, 51...exterior surface, 52...interior surface, 60...detachment fastener, 61...detachment fastener main body, 611...main body piece portion, 612, 613, 614...retaining piece portion, 615...abutment piece portion, 615A...tip edge portion, 616, 617...projecting piece, 618...insertion piece portion, 620...plastic member, 63...base end, 64...tip, 65...locking piece, 70...regulating hole, L1, L2...width dimension, L3...protruding dimension.

Claims

1. A frame, a panel disposed within the frame, and a release fastener attached to the frame, The fastener has a fastener body having a holding portion arranged to face the panel in an out-of-plane direction, and a locking piece having a tip protruding from the fastener body in a viewing direction of the frame, the frame has an engagement surface portion having a slit into which the locking piece is inserted, the slit has a narrow portion whose width in the view direction of the frame is smaller than the protruding dimension of the locking piece, and a wide portion whose width in the view direction of the frame is larger than the protruding dimension of the locking piece, The locking piece is configured to be elastically deformable until a protruding dimension of the locking piece becomes smaller than a width dimension of the narrow portion, The engaging surface portion is in an engaged state with the engaging piece when the engaging piece is disposed in the narrow width portion, and is in a disengaged state with the engaging piece when the engaging piece is disposed in the wide width portion. A fixture characterized by:

2. In the fitting according to claim 1, The frame includes an upper frame member, a lower frame member, and left and right vertical frame members, The slits are formed on one end side and the other end side in a longitudinal direction of at least one of the upper frame member, the lower frame member, and the left and right vertical frame members, The narrow portion of the slit at the one end is disposed closer to the one end in the longitudinal direction of the frame material than the wide portion of the slit, The narrow portion of the slit at the other end is disposed closer to the other end in the longitudinal direction of the frame material than the wide portion of the slit. A fixture characterized by:

3. In the fitting according to claim 1 or 2, A movement restricting device is removably attached to at least one of the release fastener and the engagement surface portion, the movement restricting device restricting movement of the release fastener in the direction along the slit in a state in which the locking piece and the engagement surface portion are engaged with each other. A fixture characterized by:

4. In the fitting according to claim 3, The movement restricting device is removably attached to the engagement surface portion so as to protrude from the engagement surface portion at a position where the movement restricting device sandwiches the wide portion between the engagement surface portion and the narrow portion, The release fastener has a protrusion disposed along the engagement surface, The protruding piece is disposed at a position where it can come into contact with the movement restricting device when the locking piece and the engagement surface portion are engaged with each other. A fixture characterized by:

5. In the fitting according to claim 3 or claim 4, The frame includes an upper frame member, a lower frame member, and left and right vertical frame members, The vertical frame member has the engagement surface portion, The slits are formed on the upper and lower sides of the engagement surface portion, In the upper slit, the narrow portion is disposed closer to the upper frame member than the wide portion, In the lower slit, the narrow portion is disposed closer to the lower frame member than the wide portion, The movement restricting device is disposed at a position capable of restricting downward movement of the release fastener in an engaged state in which the locking piece is inserted into the upper slit. A fixture characterized by:

6. In the fitting according to any one of claims 3 and 5, The release fastener has a protrusion disposed along the engagement surface, The protruding pieces are provided in a pair at positions on the release fastener such that the locking piece is sandwiched therebetween. A fixture characterized by:

7. In the fitting according to any one of claims 3 to 6, The movement restricting device is constituted by an anti-theft screw having a head and a threaded portion, and a groove portion having a shape different from the +-shaped and --shaped groove portions formed in the head portion. A fixture characterized by:

8. In the fitting according to any one of claims 1 to 7, The release fastener is made of metal fittings, The holding portion is provided with a resin member that comes into contact with the panel. A fixture characterized by:

9. In the fitting according to any one of claims 1 to 8, The frame includes an upper frame member, a lower frame member, and left and right vertical frame members, At least the upper frame member and the left and right vertical frame members include a main body having a visible surface portion disposed on one side of the exterior surface and the interior surface of the panel, and a batten disposed on the other side of the exterior surface and the interior surface of the panel and attached to the main body; The main body of the left and right vertical frame members has an engagement surface portion to which the release fastener is attached, The holding portion is disposed on the other of the exterior surface and the interior surface of the panel. A fixture characterized by:

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