Auxiliary frames, screen door units, and joinery.

Abstract

To provide an auxiliary frame or the like with more excellent aesthetic properties.SOLUTION: An auxiliary frame, which is attached to the indoor side or the outdoor side of a frame body defining an opening, includes a base member attached to the frame body and having a depth wall section protruding in the direction opposite to the frame body, a cover member having a facing wall section that is attached so as to face the depth wall section in the left-right direction and covering the base member, and a regulating member attached so as to penetrate the depth wall section and protruding toward the facing wall section, the depth wall section and the facing wall section having engaging sections that engage with each other while the cover member moves toward the frame body in the depth direction, and the engaging section of the facing wall section being held between the engaging section of the depth wall section and the regulating member in a state of being engaged with the engaging section in the depth wall section on the frame body side.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to an auxiliary frame, a screen unit, and a fitting that are attached to a frame body forming an opening.

Background Art

[0002] Conventionally, an auxiliary column is known that is fixed to the indoor side of a summons frame of an inner blind located in the middle in the finding width direction of a building opening and has a finding width similar to that of the summons frame (see, for example, Patent Document 1). In this fitting's auxiliary column, the left and right prospective surfaces are fixed to the upper receiving metal fitting and the lower receiving metal fitting of the building opening by fixing means such as screws.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the above conventional auxiliary column, since fixing means such as screws for fixing the left and right prospective surfaces to the upper receiving metal fitting and the lower receiving metal fitting are exposed, there is a problem that the design property is impaired. The present invention has been made in view of such problems, and an object thereof is to provide an auxiliary frame, a screen unit, and a fitting that are superior in design property.

Means for Solving the Problems

[0005] The main invention for achieving this objective is an auxiliary frame to be attached to the indoor or outdoor side of a frame that forms an opening, comprising: a base material attached to the frame and having a projection wall portion that protrudes in the opposite direction from the frame; a cover material that covers the base material and has an opposing wall portion that is attached facing the projection wall portion in the left-right direction; and a regulating member that is attached so as to penetrate the projection wall portion and protrudes toward the opposing wall portion, wherein the projection wall portion and the opposing wall portion have engaging portions that engage with each other as the cover material moves toward the frame, and the engaging portion of the opposing wall portion is sandwiched between the engaging portion of the projection wall portion and the regulating member while engaged with the engaging portion on the frame side of the projection wall portion. Other features of the present invention will be made apparent by description in this specification and the accompanying drawings. [Effects of the Invention]

[0006] According to the present invention, it is possible to provide auxiliary frames, screen door units, and joinery with superior design. [Brief explanation of the drawing]

[0007] [Figure 1] This is a cross-sectional view showing a joinery according to this embodiment. [Figure 2] This is an enlarged view of section A in Figure 1. [Figure 3] This is a plan view showing the base material. [Figure 4] This is a plan view showing the cover material. [Figure 5] This diagram shows the installation procedure for the right screen door mounting frame. [Figure 6] This figure shows the engagement state between the projection on the visible wall and the projection on the opposite wall when the right screen door mounting frame is installed. [Figure 7] This diagram shows the procedure for removing the cover material. [Modes for carrying out the invention]

[0008] The following description of a building component according to one embodiment of the present invention will be made with reference to the drawings. As an example of the joinery 1 according to this embodiment, we will explain using a joinery 1 for a sliding window as shown in Figure 1, which comprises a frame 4, two fixed windows 1b with two double-glazed glass panes 1a fitted to them side by side, a sliding sash 1c provided on the exterior side of the fixed windows 1b that can be opened and closed in the left and right directions, and a screen door unit 5 attached to the frame 4.

[0009] In the following explanation, when viewing the door / window 1 installed in a building from the inside, the up-and-down direction will be referred to as the up-and-down direction, the left-and-right direction as the left-and-right direction, and the depth direction (indoor / outdoor direction) as the depth direction. Furthermore, even for each part of the door / window 1, and even for each component of the door / window 1 in its individual state, the direction will be specified and explained in terms of the up-and-down direction, left-and-right direction, and depth direction when the door / window 1 is installed.

[0010] The joinery 1 has a frame body 4 having a left vertical frame (hereinafter referred to as the left vertical frame) 41, a right vertical frame (hereinafter referred to as the right vertical frame) 42, an upper frame (not shown) connecting the upper ends of the vertical frame 41 and the vertical frame 42, a lower frame (not shown) connecting the lower ends of the vertical frame 41 and the vertical frame 42, a vertical rib 40, and a central rib 43. A fixed window 1b is provided by fitting double-glazed glass 1a between the vertical rib 40 and the central rib 43, and between the central rib 43 and the right vertical frame 42. A sash 1c is provided that can be opened and closed to open an opening 1d formed on the left side of the fixed window 1b by the vertical rib 40, the left vertical frame 41, the upper frame (not shown), and the lower frame (not shown) that constitute the left fixed window 1b.

[0011] The door 1 has a screen door unit 5 on the interior side of the opening 1d. The screen door unit 5 has a retractable screen door 2, a left screen door mounting frame 6, and a right screen door mounting frame 3. The retractable screen door 2 is attached to the interior side of the frame 4 via the left screen door mounting frame 6, which is an auxiliary frame fixed to the left vertical frame 41, and the right screen door mounting frame 3, which is an auxiliary frame fixed to the vertical frame 40. Note that the left screen door mounting frame 6 and the right screen door mounting frame 3 have different visible widths for the cover parts, which will be described later.

[0012] The retractable screen door 2 comprises a screen door body 20 that folds in an accordion-like manner and can extend and retract in the left-right direction, a left screen door frame 21 attached to the left screen door mounting frame 6, and a right screen door frame 22 attached to the right screen door mounting frame 3. Both the left screen door frame 21 and the right screen door frame 22 are extruded profiles with the vertical direction being the extrusion direction, and are roughly U-shaped in plan view. The left screen door frame 21 and the right screen door frame 22 are arranged so that the open sides of the U-shape face each other and are fixed to the left screen door mounting frame 6 or the right screen door mounting frame 3, respectively. The left end of the screen door body 20 is fixed inside the left screen door frame 21 and folds up and is stored on the left screen door frame 21 side, while the right end is pulled out to the right and locked inside the right screen door frame 22, thereby forming it to cover the opening 1d.

[0013] The auxiliary frame will be explained below, using the right screen door mounting frame 3 as an example. As shown in Figures 2 to 4, the right screen door mounting frame 3 has a base material 30 fixed to the vertical rib 40 and a cover material 31 that is secured to the base material 30. Both the base material 30 and the cover material 31 are extruded profiles with the vertical direction being the extrusion direction.

[0014] The base material 30 has a fixing plate portion 30a which is fixed from the interior side by screws 32 to the vertical rib visible wall portion 40a which runs along the left-right direction on the interior side of the vertical rib 40, a visible wall portion 30b which is provided at the right end of the fixing plate portion 30a and extends inward to form a visible surface, a first engaging portion 30c which is provided at the right end of the fixing plate portion 30a and at the exterior end of the visible wall portion 30b, and a second engaging portion 30d which is provided at the tip of the visible wall portion 30b and bends to the right toward the interior. The first engaging portion 30c extends slightly to the right along the visible wall portion 30b, and the extended tip protrudes toward the interior.

[0015] The fixed plate portion 30a is in a flat plate shape and is formed slightly narrower than the finding width of the vertical member finding wall portion 40a. The left edge 30l is arranged to align with the left surface 40b of the vertical member finding wall portion 40a, and the outdoor side surface is abutted in a state of facing the vertical member finding wall portion 40a, and is fixed to the vertical member 40 by a screw 32 entering from the indoor side toward the outdoor side.

[0016] On the right surface of the prospective wall portion 30b, a prospective wall portion side protrusion 30e protruding rightward is provided approximately at the center in the prospective direction. The prospective wall portion side protrusion 30e has an inclined portion 30f whose thickness increases from the indoor side toward the outdoor side, and is connected by a finding surface 30g provided on the outdoor side and a top portion 30h having an arc shape. Here, the first engaging portion 30c and the second engaging portion 30d correspond to two engaging portions provided at intervals in the prospective direction that the base material 30 has.

[0017] The fixed plate portion 30a is provided with an insertion hole 30i through which a screw 32 for fixing the base material 30 to the vertical member 40 is inserted. The prospective wall portion 30b is provided with an outdoor side screw hole 30j to which a screw 33 is screwed at a position away from the fixed plate portion 30a toward the indoor side, and an indoor side screw hole 30k to which a screw 34 is screwed on the indoor side of the prospective wall portion side protrusion 30e. A screw 33 as a regulating member for regulating the movement of the cover material 31 is screwed into the outdoor side screw hole 30j, and a screw 34 for fixing the right screen frame 22 of the retractable screen door 2 is screwed into the indoor side screw hole 30k.

[0018] The cover material 31 has a facing wall portion 31a attached to face the prospective wall portion 30b of the base material 30 in the left - right direction, a cover portion 31b extending leftward from the indoor side edge of the facing wall portion 31a, a third engaging portion 31c provided at a portion on the outdoor side of the facing wall portion 31a, and a fourth engaging portion 31d provided on the outdoor side surface of the cover portion 31b and protruding outward with a slight interval to the left of the facing wall portion 31a. The third engaging portion 31c extends leftward from a position slightly indoor of the outdoor side end of the facing wall portion 31a, and the extended tip protrudes toward the outdoor side.

[0019] The facing wall portion 31a is reinforced by being formed slightly thicker than the portion therebetween at the outdoor side portion from the third engaging portion 31c and the portion facing the fourth engaging portion in the left - right direction. The thickness t1 of the unreinforced portion in the facing wall portion 31a is formed thinner than the thickness t2 of the prospective wall portion 30b of the base material 30.

[0020] On the left - hand side surface of the facing wall portion 31a, a facing - wall - portion - side protrusion 31e protruding leftward is provided substantially at the center in the prospective direction. Here, the third engaging portion 31c and the fourth engaging portion 31d correspond to two engaging portions provided at intervals in the prospective direction that the cover material 31 has.

[0021] As shown in FIG. 5(a), the method of attaching the right - hand screen attachment frame is as follows: First, align the left - hand edge 30l of the fixing plate portion 30a of the base material 30 with the left - hand side surface 40b of the vertical - member - finding wall portion 40a of the vertical member 40, face the fixing plate portion 30a to the finding wall portion 40a and abut them, and fix the base material 30 to the vertical member 40 with a screw 32 inserted through the insertion hole 30i.

[0022] Next, as shown in FIG. .5(b), arrange the cover material 31 on the right - hand side of the prospective wall portion 30b of the base material 30. At this time, the third engaging portion 31c is positioned more on the indoor side than the first engaging portion 30c, the fourth engaging portion 31d is positioned more on the indoor side than the second engaging portion 30d, and the facing - wall - portion - side protrusion 31e is positioned more on the indoor side than the prospective - wall - portion - side protrusion 30e. As shown in FIG. 5(c), arrange the third engaging portion 31c and the facing - wall - portion - side protrusion 31e so as to abut or be close to the right - hand side surface of the prospective wall portion 30b.

[0023] Next, move the cover material 31 along the right - hand side surface of the prospective wall portion 30b of the base material 30 to the outdoor side. At this time, first, the second engaging portion 30d enters between the fourth engaging portion 31d and the facing wall portion 31a, and then the third engaging portion 31c enters between the first engaging portion 30c and the prospective wall portion 30b. Thereafter, as shown in FIG. 6(a), the tip of the facing - wall - portion - side protrusion 31e contacts the inclined portion 30f of the prospective - wall - portion - side protrusion 30e.

[0024] After the tip of the side projection 31e of the opposing wall portion comes into contact with the inclined portion 30f of the side projection 30e of the facing wall portion, if the cover material 31 is further moved outwards, as shown in Figure 6(b), the tip of the side projection 31e of the opposing wall portion slides along the inclined portion 30f, and the opposing wall portion 31a, which is thinner than the facing wall portion 30b, flexes and deforms so as to bulge to the right. The side projection 31e of the opposing wall portion moves outwards from the facing wall portion 30e, and the flexure of the opposing wall portion 31a returns to its original state. At this time, the first engaging portion 30c and the third engaging portion 31c engage, and the second engaging portion 30d and the fourth engaging portion 31d engage, and as shown in Figure 6(c), the side projection 31e of the opposing wall portion comes into contact with or comes close to the visible surface 30g of the side projection 30e of the facing wall portion, and the cover material 31 is temporarily fixed in place.

[0025] Next, as shown in Figure 5(d), a screw 33 is screwed into the outdoor-side threaded hole 30j. The tip of the screwed screw 33 protrudes to the indoor side of the third engaging portion 31c, which is engaged with the first engaging portion 30c. The protruding portion of the screw 33 comes into contact with or is close to the indoor side of the third engaging portion 31c, restricting the movement of the cover material 31 toward the indoor side, thereby attaching the cover material 31. At this time, the length of the screw 33 is set so that the protruding tip does not come into contact with the opposing wall portion 31a.

[0026] A screw 34 is inserted from the left side and screwed into the indoor-side screw hole 30k of the installed right screen door mounting frame 3, thereby fixing the right screen door frame 22 to the right screen door mounting frame 3. The length of the screw 34 is set so that the protruding tip does not come into contact with the opposite wall portion 31a.

[0027] The visible width W1 of the cover material 31 and the visible width W2 of the vertical frame 40 are formed to be the same, and the right screen door mounting frame 3 attached to the vertical frame 40 is installed so that the right side surface 31f of the opposite wall portion 31a of the cover material 31 and the right side surface 40c of the vertical frame 40 are in approximately the same plane. For this reason, when viewed from the inside, the vertical frame 40 and the base material 30 are covered by the cover material 31 and are difficult to see.

[0028] The indoor-side screw hole 30k of the right screen door mounting frame 3 is also used when removing the cover material 31. When removing the cover material 31, as shown in Figure 7(a), first remove the screw 34 and remove the right screen door frame 22. Next, as shown in Figure 7(b), screw 35, which is longer than screw 34 and more specifically long enough to press the opposing wall portion 31a to the right when screwed in, is screwed into the indoor-side screw hole 30k from which screw 34 was removed. By screwing in screw 35, as shown in Figure 7(c), the opposing wall portion 31a is bent to the right, and the cover material 31 is moved to the indoor side while the top portion 30h of the opposing wall portion projection 31e slides, and the cover material 31 is removed.

[0029] In the right screen door mounting frame 3 of this embodiment, the first to fourth engaging portions 30c, 30d, 31c, and 31d, which are spaced apart in the depth direction between the depth wall portion 30b of the base material 30 and the opposite wall portion 31a of the cover material 31, engage with each other as the cover material 31 moves in the depth direction toward the vertical rib 40. Therefore, when the first engaging portion 30c and the third engaging portion 31c and the second engaging portion 30d and the fourth engaging portion 31d are engaged, the movement of the base material 30 and the cover material 31 in the left-right direction is restricted.

[0030] Furthermore, the third engaging portion 31c located on the vertical rib 40 side of the opposing wall portion 31a is sandwiched between a screw 33 that is attached to the base material 30 that is covered by the cover material 31 and protrudes toward the opposing wall portion 31a, and the first engaging portion 30c of the vertical wall portion 30b with which the third engaging portion 31c of the opposing wall portion 31a is engaged. Thus, movement in the vertical direction is also restricted by the screw 33. As a result, the right screen door mounting frame 3, consisting of the base material 30 and the cover material 31, is attached to the vertical rib 40 by the engagement of the first engaging portion 30c and the third engaging portion 31c and the second engaging portion 30d and the fourth engaging portion 31d and the attachment of the screw 33. At this time, the base material 30 with the screw 33 attached is covered by the cover material 31, so the screw 33 is not exposed. Therefore, it is possible to provide a right screen door mounting frame 3 with excellent design.

[0031] Furthermore, the left screen door mounting frame 6 differs from the right screen door mounting frame 3 only in the visible width of the cover portion, and therefore, like the right screen door mounting frame 3, it has excellent design. The screen door unit 5, which includes a retractable screen door 2 attached to the frame 4 via the left screen door mounting frame 6 and the right screen door mounting frame 3, and the joinery 1 to which this screen door unit 5 is attached, also have excellent design.

[0032] Furthermore, when the first engaging portion 30c and the third engaging portion 31c and the second engaging portion 30d and the fourth engaging portion 31d of the base material 30 and the cover material 31 are engaged, the side projection 31e of the facing wall portion 31a, which is provided between the third engaging portion 31c and the fourth engaging portion 31d of the facing wall portion 31a, abuts against the vertical rib 40 side of the side projection 30e of the facing wall portion 30b, which is provided between the first engaging portion 30c and the second engaging portion 30d of the facing wall portion 30b. As the cover material 31 moves in the facing direction toward the vertical rib 40 and the first to fourth engaging portions 30c, 30d, 31c, and 31d engage, the side projection 31e of the facing wall portion first makes contact with the side projection 30e of the facing wall portion 30e on the side opposite to the vertical rib 40.

[0033] At this time, since the opposing wall portion 31a, on which the opposing wall portion side projection 31e is provided, is formed thinner than the facing wall portion 30b, by moving the opposing wall portion side projection 31e further toward the vertical rib 40 after it has come into contact with the facing wall portion side projection 30e, the opposing wall portion 31a will bend and deform, and the opposing wall portion side projection 31e will move over the facing wall portion side projection 30e toward the vertical rib 40, making it possible to position the opposing wall portion side projection 31e on the frame side of the facing wall portion side projection 30e, bringing it into contact with or close to it.

[0034] Therefore, on the vertical rib 40 side, the third engaging portion 31c of the opposing wall portion 31a engages with the first joining portion 30b of the projection wall portion 30b, and the side projection 31e of the opposing wall portion abuts against or approaches the vertical rib 40 side of the side projection 30e of the projection wall portion, making it possible to hold the cover material 31 to the base material 30. As a result, the screws 33 can be attached while the cover material 31 is held to the base material 30, resulting in excellent workability.

[0035] Furthermore, when removing the right screen door mounting frame 3, the cover material 31 must be moved in the opposite direction to the vertical ribs 40. However, even after removing the screw 33, it is difficult to remove because the projection 31e on the opposite wall side is in contact with or close to the vertical rib 40 side of the projection 30e on the inside wall side. For this reason, the right screen door mounting frame 3, which has an indoor-side screw hole 30k between the first engaging portion 30c and the second engaging portion 30d of the inside wall portion 30b, can be easily removed by pressing the opposite wall portion 31a away from the inside wall portion 30b with a screw 35 screwed into the indoor-side screw hole 30k, thereby bending the opposite wall portion 31a and easily moving the cover material 31 to the opposite side to the vertical ribs 40. In this case, since a screw 35 is used, the opposite wall portion 31a can be easily pressed by screwing the screw 35 in, and the screw 35 can be easily removed by reversing it.

[0036] Furthermore, the cover portion 31b of the cover material 31 overlaps and covers the visible surface of the vertical rib 40 to which the fixing plate portion 30a of the base material 30 is attached, as well as the fixing plate portion 30a, in the depth direction. Therefore, from the opposite side of the vertical rib 40, only the cover material 31 is visible. As a result, the visible width of the visible portion can be narrowed, resulting in superior design aesthetics.

[0037] In the above embodiment, an example was described in which a screw 33 that screws into the outdoor screw hole 30j is used as a restricting member to restrict the movement of the cover material 31 toward the indoor side, but it is not limited to this. For example, it is acceptable as long as it is removablely locked to the visible wall portion 30b and protrudes from the visible wall portion 30b toward the opposite wall portion 31a side so as to be able to clamp the third engaging portion 31c together with the first engaging portion 30c.

[0038] In the above embodiment, an example was described in which the indoor-side screw hole 30k for fixing the right screen door frame 22 to the right screen door mounting frame 3 is used when removing the cover material 31, but this is not the only example. For example, a through hole through which a rod-shaped member can be inserted may be provided in the visible wall portion 30b separately from the indoor-side screw hole 30k.

[0039] In the above embodiment, an example was described in which a retractable screen door is attached to the interior side of the frame, but the retractable screen door may also be installed on the exterior side. Also, in the above embodiment, an example was described in which the retractable screen door is folded in an accordion-like manner, but it may also be stored rolled up. Furthermore, although an auxiliary frame installed along the vertical direction for attaching a retractable screen door that is pulled out horizontally was given as an example, it is not limited to this, and an auxiliary frame installed along the horizontal direction for attaching a retractable screen door that is pulled out vertically may also be used.

[0040] In the above embodiment, an example of attaching the right screen door mounting frame (auxiliary frame) 3 to a single vertical frame 40 was described. However, the invention is not limited to this example. For example, as shown in Figure 1, when attaching to a left screen door mounting frame 6 fixed to the interior side of the left vertical frame 41, or to a window frame where two vertical frames are adjacent to each other, such as a series of windows, it is desirable that the visible width of the cover portion be configured to cover the frame, etc., without protruding towards the opening side, in accordance with the part to which it is attached.

[0041] The above embodiments are provided to facilitate understanding of the present invention and are not intended to limit its interpretation. The present invention can be modified and improved without departing from its spirit, and it goes without saying that the present invention includes equivalents thereof.

[0042] This embodiment includes at least the following inventions. Embodiment 1: An auxiliary frame to be attached to the indoor or outdoor side of a frame that forms an opening, comprising: a base material attached to the frame and having a projection wall portion that protrudes in the opposite direction to the frame; a cover material that covers the base material and has an opposing wall portion attached facing the projection wall portion in the left-right direction; and a regulating member that is attached in a state that penetrates the projection wall portion and protrudes toward the opposing wall portion, wherein the projection wall portion and the opposing wall portion have engaging portions that engage with each other as the cover material moves toward the frame, and the engaging portion of the opposing wall portion is sandwiched between the engaging portion of the projection wall portion and the regulating member while engaged with the engaging portion on the frame side of the projection wall portion.

[0043] According to the auxiliary frame of Embodiment 1, the two engaging portions provided at intervals in the depth direction of the depth direction of the depth wall portion of the base material and the opposite wall portion of the cover material engage with each other as the cover material moves toward the frame in the depth direction. When the engaging portions are engaged, the lateral movement of the base material and the cover material is restricted.

[0044] Furthermore, the engaging portion of the opposing wall is sandwiched between a restricting member that is attached in a state where it penetrates the visible wall portion of the base material covered by the cover material and protrudes toward the opposing wall portion, and the engaging portion of the visible wall portion with which the engaging portion of the opposing wall portion is engaged. Thus, movement in the visible direction is also restricted by the restricting member. As a result, the auxiliary frame consisting of the base material and the cover material is attached to the frame body by engaging the engaging portions of the base material and the cover material and attaching the restricting member. At this time, since the base material to which the restricting member is attached is covered by the cover material, the restricting member is not exposed. Therefore, it is possible to provide an auxiliary frame with excellent design.

[0045] Embodiment 2: An auxiliary frame according to Embodiment 1, wherein the projection wall and the opposing wall each have two engagement portions spaced apart in the projection direction, the projection wall has a projection side projection between the two engagement portions that protrudes toward the opposing wall, the opposing wall is formed thinner than the projection wall, and has a projection side projection between the two engagement portions that protrudes toward the projection wall, and when the engagement portions of the projection wall and the engagement portions of the opposing wall are engaged, the projection side of the opposing wall is in contact with or close to the frame side of the projection side projection.

[0046] According to the auxiliary frame of embodiment 2, when the engagement portions of the base material and the cover material are engaged with each other, the side projection of the opposing wall provided between the two engagement portions of the opposing wall is in contact with or close to the frame side projection of the facing wall provided between the two engagement portions of the facing wall. As the cover material moves toward the frame in the facing direction and the engagement portions engage with each other, the side projection of the opposing wall makes contact with the side projection of the facing wall on the side opposite to the frame.

[0047] In this case, since the opposing wall portion on which the side projection is provided is formed thinner than the facing wall portion, after the side projection of the opposing wall portion comes into contact with the side projection of the facing wall portion, by further moving the cover material toward the frame, the opposing wall portion will bend and deform, and the side projection of the opposing wall portion will move over the side projection of the facing wall portion toward the frame, making it possible to bring the side projection of the opposing wall portion into contact with or close to the frame side of the side projection of the facing wall portion.

[0048] Therefore, on the frame side, the engaging portion of the opposing wall engages with the engaging portion of the facing wall, and the side projection of the opposing wall abuts against or comes into close proximity to the frame side projection of the facing wall, making it possible to hold the cover material to the base material. As a result, the regulating member can be attached while the cover material is held to the base material, resulting in excellent workability.

[0049] Embodiment 3: An auxiliary frame according to Embodiment 2, characterized in that the projection wall portion has a through hole between the two engagement portions of the projection wall portion.

[0050] According to the auxiliary frame of embodiment 3, when removing the auxiliary frame, the cover material must be moved in the opposite direction from the frame body. However, even after removing the regulating member, it is difficult to remove because the side projection of the opposing wall portion is in contact with or close to the frame body side projection of the facing wall portion. For this reason, the auxiliary frame, which has a through hole between the two engaging portions of the facing wall portion, allows the opposing wall portion to be bent and the cover material to be easily moved to the opposite side from the frame body and removed by pressing the opposing wall portion away from the facing wall portion with, for example, a rod-shaped member inserted through the through hole.

[0051] Embodiment 4: An auxiliary frame according to Embodiment 3, characterized in that an internal thread is formed on the inner circumference of the through hole.

[0052] According to the auxiliary frame of embodiment 4, since a female thread is formed on the inner circumference of the through hole, the opposing wall can be easily pressed by the screw by screwing it in, and the screw can be easily removed by reversing it. Therefore, the cover material can be removed more easily.

[0053] Embodiment 5: An auxiliary frame according to any one of Embodiments 1 to 4, wherein the base material has a mounting plate portion attached to the visible surface of the frame body, and the cover material has a cover portion that overlaps the visible surface and the mounting plate portion in the depth direction and covers the visible surface and the mounting plate portion.

[0054] According to the auxiliary frame of Embodiment 5, the cover portion of the cover material overlaps in the depth direction with the visible surface and mounting plate portion of the frame body to which the mounting portion of the base material is attached, and covers the visible surface and mounting plate portion of the frame body. Therefore, only the cover material is visible from the opposite side of the frame body. For this reason, it has superior design quality.

[0055] Embodiment 6: A screen door unit characterized by comprising an auxiliary frame as described in any of Embodiments 1 to 5, and a retractable screen door attached by the auxiliary frame. According to the screen door unit of embodiment 6, it is possible to provide a screen door unit with superior design.

[0056] Embodiment 7: A building fixture characterized by comprising the screen door unit described in Embodiment 6 and the frame body to which the auxiliary frame is attached. According to the joinery of embodiment 7, it is possible to provide joinery equipped with a screen door unit that has superior design. [Explanation of Symbols]

[0057] 1 Door / window, 1d Opening, 3 Right screen door mounting frame (auxiliary frame), 4 Frame body, 5 screen door unit, 30 base material, 30a fixing plate section, 30b visible wall section, 30c First engaging portion, 30d Second engaging portion, 30e Side projection of the visible wall portion, 30j Outdoor side screw hole, 31 Cover material, 31a Opposite wall section, 31b Cover section, 31c Third engaging portion, 31d Fourth engaging portion, 31e Side projection of the opposing wall portion, 33 Screws (regulating members), 40 Vertical ribs,

Claims

1. An auxiliary frame attached to the indoor or outdoor side of a frame that forms an opening, A base material having a projection wall portion attached to the frame and projecting in the opposite direction to the frame, A cover material having a facing wall portion attached to the aforementioned projection wall portion in the left-right direction, and which covers the base material when viewed from the indoor or outdoor side, A restricting member is installed so as to penetrate the aforementioned visible wall portion and protrudes toward the opposite wall portion, It has, The auxiliary frame is characterized in that the forward wall portion and the opposing wall portion have engaging portions that engage with each other as the cover material moves toward the frame in the forward direction, the engaging portion of the opposing wall portion is sandwiched between the engaging portion of the forward wall portion and the restricting member while engaged with the engaging portion of the forward wall portion, and the restricting member restricts the movement of the engaging portion of the opposing wall portion toward the interior or exterior side.

2. The auxiliary frame according to claim 1, The aforementioned projection wall portion and the aforementioned opposing wall portion each have other engagement portions that are positioned at a distance from the engagement portion in the projection direction, and that engage with each other as the cover material moves toward the frame in the projection direction. The aforementioned projection wall portion has a projection wall side projection that protrudes toward the opposite wall portion between the engagement portion of the projection wall portion and the other engagement portion of the projection wall portion in the projection direction, The opposing wall portion is formed thinner than the facing wall portion between the engaging portion of the opposing wall portion and the other engaging portion of the opposing wall portion in the facing wall portion direction, and has an opposing wall portion side projection that protrudes toward the facing wall portion. An auxiliary frame characterized in that, with the engaging portion of the prospective wall portion and the engaging portion of the opposing wall portion engaged, and with the other engaging portion of the prospective wall portion and the other engaging portion of the opposing wall portion engaged, the side projection of the opposing wall portion is in contact with or close to the frame side of the side projection of the prospective wall portion.

3. The auxiliary frame according to claim 2, The auxiliary frame is characterized in that the prospective wall portion has a through hole between the engaging portion and the other engaging portion of the prospective wall portion through which a member that presses the opposing wall portion away from the prospective wall portion is inserted.

4. The auxiliary frame according to claim 3, The aforementioned member is a male screw, An auxiliary frame characterized in that a female thread is formed on the inner circumference of the through hole through which the male thread is inserted.

5. An auxiliary frame according to claim 1 or claim 2, The base material has a fixing plate portion that is fixed to the visible surface of the frame, The auxiliary frame is characterized in that the cover material overlaps with the visible surface and the fixing plate portion in the depth direction, and has a cover portion that covers the visible surface and the fixing plate portion when viewed from the indoor side or the outdoor side.

6. The auxiliary frame according to claim 1 or claim 2, A retractable screen door that is attached by the aforementioned auxiliary frame, A screen door unit characterized by having the following features.

7. The screen door unit according to claim 6, The frame body to which the auxiliary frame is attached, A building fitting characterized by having the following features.

Images