JP5912967B2 - Joinery - Google Patents

Description

  The present invention relates to a joinery including glass provided in an opening.

  As a fitting with glass provided in the opening, for example, a press ledge is attached to the upper eave, lower eave, left and right vertical eaves, There is known a joinery in which a glass is mounted on (see, for example, Patent Document 1). More specifically, the upper side, the lower side, and the vertical side of the glass have a shape in which the portion outside the glass protrudes inward in the plane from the portion indoor on the glass side. An inward concave groove for attaching a pressing edge is provided in this part. The pressing edge is engaged with the concave groove, and the glass is held by sandwiching the glass disposed between the pressing edge and the outdoor portion.

JP 2006-63524 A

  When installing glass in the joinery as described above, after placing the glass over the inward groove for attaching the ledge from the indoor side that does not protrude inward in the in-plane direction, Attach the ledges to the left and right vertical shafts. For this reason, since it is necessary to arrange the bare glass in a space surrounded by the upper heel, the lower heel, and the left and right vertical folds, more careful work is required so as not to damage the glass. In addition, for example, when installing double-layer glass or the like in place of the existing single plate glass, it is necessary to attach a new glass to a frame or a shoji that has already been attached. There is a problem that work is required and work is complicated.

  This invention is made | formed in view of this subject, The place made into the objective is to provide the fitting which can mount | wear glass easily.

In order to achieve such an object, the joinery of the present invention has an outer peripheral member that has an opening and a glass accommodating portion that accommodates glass provided in the opening, and is opposed to a portion that forms the opening of the outer peripheral member. A frame portion having an outer peripheral facing portion and a peripheral end facing portion facing the peripheral end portion of the glass, and a side facing portion facing the side surface of the glass so as to protrude from the frame portion and surround the glass. and, the glass contained in the glass housing part have a clamping member, for clamping together with the peripheral member, the glass is a fitting characterized that you have been adhered to the peripheral end face portion.
According to such a joinery, the holding member that holds the glass together with the outer peripheral member protrudes from the frame portion that faces the outer peripheral member and the peripheral end portion of the glass, and faces the side surface of the glass so as to surround the glass. Therefore, the side surface of the glass is covered with the side surface facing portion. For this reason, when the glass is moved and attached to the outer peripheral member, the side surface of the glass is protected by the side facing portion, so that the glass is hardly damaged by the operation. For this reason, it is possible to provide a joinery in which glass is easy to handle and easy to wear.

In addition, since the glass is bonded to the peripheral end facing portion, the side end surface of the glass is always protected by the side facing portion, thereby facilitating the handling of the glass. For this reason, it is possible to provide a joinery that is easier to wear glass.

In such a joinery, a guide member in which a central surface of the glass housing portion is formed flat between an inner circumferential surface forming the glass housing portion of the outer circumferential member and the side surface facing portion. It is desirable that the back side of the surface facing the side surface of the glass in the side facing portion is formed flat.
According to such a joinery, the guide member interposed between the inner peripheral surface forming the glass housing portion of the outer peripheral member and the side surface facing portion has a flat surface on the center side of the glass housing portion, and faces the side surface. Since the back side of the surface facing the side surface of the glass in the part is also flat, the glass is easily placed in the glass housing part by placing the side facing part of the holding member equipped with glass on the guide member and moving it in the expected direction. Is possible.

In such a joinery, a gasket is interposed between a portion of the outer peripheral member facing the glass and the glass, and the clamping member is fixed to the outer peripheral member with a screw entering from the outer peripheral member side. It is desirable.
According to such a joinery, the sandwiching member is fixed to the outer peripheral member with the screw entering from the outer peripheral member side, and the gasket interposed between the portion of the outer peripheral member facing the glass and the glass is compressed. Therefore, high sealing performance with the glass of the outer peripheral member is ensured, and the glass can be held in a stable state.

  ADVANTAGE OF THE INVENTION According to this invention, it is possible to provide the fitting which is easy to mount | wear with glass.

It is the front view which looked at the fitting which concerns on this embodiment from the outdoor side. It is a cross-sectional view of the joinery according to this embodiment. It is AA sectional drawing in FIG. It is BB sectional drawing in FIG. It is a disassembled perspective view of an opening-and-closing door. It is a figure which shows the construction procedure and structure in an opening / closing door. It is a figure which shows the construction procedure and structure in a fixed window.

Hereinafter, a fitting according to an embodiment of the present invention will be described with reference to the drawings.
The joinery 1 of the present embodiment will be described by taking as an example a joinery that forms a window having a fixed window 10 and a single-opening window 13 provided at an indoor / outdoor boundary as shown in FIGS.

  The joinery 1 includes a window frame 11 attached to a building and the like, a vertical bone 12 that forms an outer peripheral member of the fixed window 10 together with the window frame 11, and a region 2 surrounded by the window frame 11 is partitioned by the vertical bone 12. The open / close door 14 of the one-sided window 13 that closes one of the two areas so as to be openable, and the glass 15 together with the window frame 11 and the vertical bone 12 in the other of the two areas partitioned by the vertical bone 12 And a fixed window side clamping member 16 as a clamping member. The open / close door 14 is configured such that the open / close door 14 is rotated and opened around the window frame side that is rotatably supported by pushing the longitudinal bone 12 side outward.

  As shown in FIG. 5, the opening / closing door 14 is formed with, for example, a casing 20 as a peripheral member having a glass opening 20 a in which a rectangular opening 14 a is formed and a glass 18 provided in the opening 14 a is stored. 20 is provided with a glass 18 provided in the opening 14a, an open / close door-side clamping member 30 as a clamping member for clamping the glass 18 together with the housing 20, and a guide member 50 for flattening the inner surface of the glass accommodating portion 20a. ing. Here, the glasses 15 and 18 are multi-layer glass composed of three plate glasses, and are hereinafter referred to as multi-layer glasses 15 and 18.

  In the fixed window 10, a portion where the rectangular opening 10 a surrounded by the window frame 11 and the vertical bone 12 is formed as an outer peripheral member, and the multilayer glass 15 is sandwiched between the outer peripheral member by the fixed window side clamping member 16. In the open / close door 14, the structure in which the double-glazed glass 18 is clamped by the open / close door side clamping member 30 to the casing 20 that forms the rectangular opening 14 a is the same. To do.

  In the following description, the vertical direction when the joinery 1 is viewed from the outdoor side is indicated as the vertical direction, the horizontal direction is indicated as the horizontal direction or the finding direction, and the depth direction that is the indoor / outdoor direction is indicated as the prospective direction. Moreover, even if each member with which the fitting 1 is demonstrated is demonstrated as a single-piece | unit, a direction is specified and demonstrated in the direction used as an up-down direction, a finding direction, a prospective direction, etc. in the state attached to the building etc.

  The casing 20 of the open / close door 14 is made of resin, and has an upper flange 21 and a lower flange 22 positioned above and below the opening 14a, and a left lamp 23 and a right lamp 24 positioned on the left and right of the opening 14a. The upper rod 21, the lower rod 22, the left rod 23, and the right rod 24 are made of the same extrusion-molded member, and each end portion cut at 45 degrees with respect to the longitudinal direction is abutted and welded and joined to form a rectangular shape. It has a shape. Since the cross-sectional shapes of the upper rod 21, the lower rod 22, the left rod 23, and the right rod 24 are the same, the shape of each rod will be described here by taking the lower rod 22 as an example. At this time, the outer periphery side of the casing 20, that is, the upper side of the upper casing 21, the left side of the left casing 23, and the lower side of the lower casing 22 corresponding to the right side of the right casing 24 is referred to as the outer side. The inner circumference side of 20, that is, the lower side of the upper side 21, the right side of the left side 23, and the upper side of the lower side 22 corresponding to the left side of the right side 24 will be referred to as the inner side.

  As shown in FIG. 3, the lower rod 22 is located on the outdoor side in the prospective direction and protrudes outward, and when the open / close door 14 is closed, the window frame facing portion 22 a that faces the window frame 11 and the prospective direction It has a glass facing portion 22b which is located on the indoor side and protrudes inward and faces the peripheral end portion of the multilayer glass 18. Further, on the outdoor side from the glass facing portion 22b, the inner peripheral surface 22c facing the center side of the opening 14a and the facing surface 22d facing the multi-layer glass 18 of the glass facing portion 22b, the upper face 21 and the port side 23 And the space enclosed by the part of the starboard 24 has comprised the glass accommodating part 20a. And the main-body part 22e which has connected the window-frame opposing part 22a and the glass opposing part 22b between the window-frame opposing part 22a and the glass opposing part 22b is the opening 14a which opposes the main-body opposing part 32a mentioned later. It corresponds to the site | part which forms.

  In the joinery 1 of the present embodiment, for example, as shown in FIG. 6, the double glazing 140 made of two sheet glasses of the joinery 100 already attached to the building is changed to the double glazing 18 made of three flat glasses. It is used when attaching to the building etc. in the state provided with the double glazing 18 in the case where the fitting 1 formed so that the single plate glass or the double glazing 140 may be provided. For this reason, as shown in FIG. 3, the housing 20 has a fitting groove 20b in which a pressing edge is fitted in the inner peripheral surface 22c in order to attach a multi-layer glass made of two sheets of glass to the housing 20. It is provided at a position slightly lower than other portions of the inner peripheral surface 22c, that is, slightly outside. For this reason, the inner peripheral surface 22c of the lower collar 22 has a step where the upper end of the fitting groove 20b is slightly lower than other portions of the inner peripheral surface 22c.

  Further, the facing surface 22d of the lower rod 22 has a stepped portion 22f that slightly protrudes outward from the half in the height direction. Here, in the state of the casing 20 in which the upper rod 21, the lower rod 22, the left rod 23, and the right rod 24 are joined, a rectangular plane is formed in which the surfaces 22g facing the outdoor portions of the step portions 22f are connected. A sheet-like step seal material 26 is attached to the entire circumference of the rectangular flat surface where the surfaces 22g of the step portions 22f facing the outside are connected.

  The open / close door-side holding member 30 includes a holding member main body 35 that holds the multilayer glass 18 together with the housing 20, and a sheet-shaped inner sealing material 36 interposed between the open / close door-side holding member 30 and the multilayer glass 18. And a sheet-like outer sealing material 37 interposed between the open / close door-side clamping member 30 and the housing 20.

  As shown in FIG. 5, the open / close door side clamping member 30 has an upper member 31 and a lower member 32 positioned up and down, and a left member 33 and a right member 34 positioned left and right. The upper member 31, the lower member 32, the left member 33, and the right member 34 are made of the same extruded member, and are rectangularly bonded by joining and joining each end portion cut at 45 degrees with respect to the longitudinal direction. It has a shape. Since the cross-sectional shapes of the upper member 31, the lower member 32, the left member 33, and the right member 34 are the same, the shape of each member will be described here by taking the lower member 32 as an example. Also at this time, the outer peripheral side of the opening / closing door side holding member 30, that is, the upper side of the upper member 31, the left side of the left member 33, and the lower side of the lower member 32 corresponding to the right side of the right member 34 are referred to as the outside. The inner circumference side of the member 30, that is, the lower side of the upper member 31, the right side of the left member 33, and the upper side of the lower member 32 corresponding to the left side of the right member 34 will be referred to as the inner side.

  As shown in FIG. 3, the lower member 32 includes a main body facing portion 32 a as an outer peripheral facing portion facing the main body portion 22 e of the lower collar 22 and a peripheral end facing portion 32 b facing the peripheral end portion 18 b of the multilayer glass 18. The frame portion 32c has a rectangular shape and a side facing portion 32d that protrudes from the frame portion 32c toward the room and faces the side surface 18a of the multilayer glass 18. A main body facing surface 32e facing the main body portion of the main body facing portion 32a, a glass facing surface 32f facing the multilayer glass of the peripheral edge facing portion 32b, an upper surface 32g facing the side surface 18a of the multilayer glass 18 in the side facing portion 32d, and The lower surface 32h that is the back side of the upper surface 32g is formed flat. The open / close door side clamping member 30 to which the upper member 31, the lower member 32, the left member 33, and the right member 34 are joined has a side facing portion 32d protruding in a rectangular shape toward the room. In addition, an inner sealing material 36 is attached to a flat glass facing surface 32f having a rectangular shape provided inside the side facing portion 32d protruding in a rectangular shape, and the outside of the side facing portion 32d protruding in a rectangular shape. An outer sealing material 37 is affixed to a flat main body facing surface 32e having a rectangular shape provided on the surface.

  The guide member 50 is flat by filling the step between the upper end of the fitting groove 20b and the other part of the inner peripheral surface 22c, which the inner peripheral surfaces of the upper rod 21, the lower rod 22, the left rod 23, and the right rod 24 have. And is affixed to each inner peripheral surface of the upper rod 21, the lower rod 22, the port rod 23, and the right rod 24. The guide member 50 covers the fitting groove 20b and protrudes from a portion where the upper end of the fitting groove 20b comes into contact with another portion of the inner peripheral surface 22c. 22, the surface 50a which faces the center side of the glass accommodating part 20a is formed so that it may become flat, when it affixes on each internal peripheral surface of the starboard 23 and the starboard 24. The guide member 50 is formed to be shorter than the width in the direction in which the upper rod 21 and the lower rod 22 are found or the vertical length of the left rod 23 and the right rod 24. In this embodiment, the multi-layer glass 18 is mounted. There are two on the lower rod 22 to be placed, and one on the upper rod 21, the left rod 23, and the right rod 24, respectively. The length and number of the guide members 50 are not limited to this, and may be set as appropriate in accordance with the accuracy of the housing 20.

  Then, the open / close door 14 has the multi-layer glass 18 bonded to the open / close door-side holding member 30 to which the inner seal member 36 and the outer seal member 37 are bonded, and the step seal member 26 and the guide member 50 are adhered. The open / close door side clamping member 30 is fixed to the housing 20 with screws 52 from the indoor side, and a gasket 51 is provided between the multi-layer glass 18 and the glass facing portion 22b of the housing 20. The multilayer glass 18 is held.

  FIG. 6 shows an attachment method for replacing the double glazing made of two sheet glasses of an existing fitting attached to the building by remodeling the open / close door 14 with the double glazing 18 made of three sheets of glass. Will be described with reference to FIG.

  First, the opening / closing door side clamping member 30 is formed in advance by joining both ends of the upper member 31, the lower member 32, the left member 33, and the right member 34 in a factory or the like and welding them together in a rectangular shape. At this time, the upper member 31, the lower member 32, the left member 33, and the right member 34 are formed in a rectangular shape formed at a portion connected to the side facing portion 32 d of the lower member 32 included in the open / close door side clamping member 30. In the enclosed area, the inner sealing material 36 is attached to a portion that is connected to the main body facing portion 32a of the lower member 32 and forms the same plane.

  In addition, in a region surrounded by a rectangular shape at a portion connected to the side facing portion 32d of the lower member 32 included in the open / close door side clamping member 30, a new multilayer glass 18 having three plate glasses is used as an inner sealing material. Paste together with 36 to make a unit. At this time, a setting block 38 is interposed between the multilayer glass 18 and the lower member 32. Moreover, the outer side sealing material 37 is affixed on the site | part which is connected with the peripheral edge opposing part 32b of the lower member 32 which the opening-and-closing door side clamping member 30 has, and makes | forms the same plane. And it is carried in to a construction site in the state where the multilayer glass 18 was provided in the area | region enclosed by the site | part connected with the side surface opposing part 32d of the opening-and-closing door side clamping member 30. FIG.

  At the construction site, as shown in FIG. 6, the pressing edge 120 and the glass pressing member 130 of the opening / closing door 110 of the existing fitting 100 are removed, and the existing multilayer glass (hereinafter referred to as the existing multilayer glass) 140 is removed. At this time, the setting block 150 on which the existing multilayer glass 140 is placed is also removed. Moreover, as shown in FIG. 6, when the gasket 160b contact | abutted to the existing multilayer glass 140 is provided in the glass facing part 160a of the existing housing 160, it cuts out. By the work so far, the existing casing 160 has the same shape as the casing 20 described above. In the following description, the case where the gasket 160b is cut will be described as the case 20.

  Next, a process of forming a hole 20c for screwing the opening / closing door side clamping member 30 to the casing 20 is formed in the upper casing 21, the lower casing 22, the left casing 23, and the right casing 24 constituting the casing 20. Applied. Further, a step seal material 26 is attached to a rectangular flat surface connected to the surface of the step portion 22f of the casing 20 that faces the outside of the casing 20, and the upper casing 21, the lower casing 22, the left casing 23, and the right casing 24 The guide member 50 is affixed to each inner peripheral surface.

  Next, the lower surface 32h of the side facing portion 32d of the lower member 32 of the open / close door-side clamping member 30 having the multilayer glass 18 is placed on the guide member 50 attached to the lower rod 22, and the multilayer The glass 18 and the open / close door side clamping member 30 are inserted into the glass housing portion 20a, fixed to the housing 20 with screws 52 from the indoor side, and the cap 54 is fitted into the hole 20c of the housing 20. At this time, when the screw stopper has a step as in the case 20 of the present embodiment, it is fixed with the screw 52 via the spacer 53 that fills the step.

  Finally, the gasket 51 is inserted between the multi-layer glass 18 and the glass facing portion 22b of the housing 20, and the construction is completed.

  The joinery 1 of the present embodiment includes the fixed window 10 and the single opening window 13, and the structure in which the multi-layer glass 18 is attached to the opening / closing door 14 of the single opening window 13 has been described. It is.

  As shown in FIGS. 4 and 7, the fixed window 10 side is different in that the housing 20 provided with the glass accommodating portion 20 a in the opening and closing door 14 is composed of the window frame 11 and the vertical bone 12. The difference is that the inner peripheral surface 11b and the glass facing portion 11c constituting the glass accommodating portion 11a do not have a stepped portion, and the existing window frame 111 has a gasket 112 fitted to the glass facing portion 111b. Yes. For this reason, the guide member 60 provided on the inner peripheral surface 11b of the window frame 11 does not have a protruding portion and has a flat plate shape. And when attaching the multilayer glass 15 which has three sheet glass to the fixed window 10, before inserting the multilayer glass 15 with the fixed window side clamping member 16 to the glass accommodating part 11a, it fits a new gasket 62 beforehand. In other respects, it is different from the case of the open / close door 14, but the others are the same.

  According to the joinery 1 of the present embodiment, the open / close door side holding member 30 that holds the multilayer glass 18 together with the casing 20 of the opening / closing door 14 is a frame that faces the casing 20 and the peripheral end portion 18 b of the multilayer glass 18. Since the side glass 18 has a side facing portion 32d that faces the side surface 18a of the multilayer glass 18 so as to protrude from the portion 32c and surround the multilayer glass 18, the side surface 18a of the multilayer glass 18 is covered by the side facing portion 32d. Is called. For this reason, since the side surface 18a of the multilayer glass 18 is protected when moving the multilayer glass 18 and attaching to the housing 20, the multilayer glass 18 is hard to be damaged by work. Similarly, in the fixed window 10, the fixed window side holding member 16 that holds the multi-layer glass 15 together with the window frame 11 and the vertical bone 12 is opposed to the peripheral end 15 b of the window frame 11, the vertical bone 12, and the multi-layer glass 15. Since it has the side surface opposing part 16b facing the side surface 15a of the said multilayer glass 15 so that it may protrude from the frame part 16a which encloses the multilayer glass 15, the side surface 15a of the multilayer glass 15 becomes the side surface opposing part 16b. Covered. For this reason, since the side surface 15a of the multi-layer glass 15 is protected when moving the multi-layer glass 15 and when being mounted on the glass housing portion 11a formed by the window frame 11 and the vertical bones 12, The multilayer glass 15 is hard to be damaged. For this reason, it is possible to provide the joinery 1 which can mount | wear with the multilayer glass 15 and 18 easily.

  Further, since the multilayer glass 18 is bonded to the peripheral end facing portion 32b via the inner sealing material 36, the side surface 18a of the multilayer glass 18 is always protected by the side surface facing portion 32d. Easy to handle. Further, since the multilayer glass 15 is bonded to the frame portion 16a, the side surface 15a of the multilayer glass 15 is always protected by the side facing portion 16b, so that the multilayer glass 15 can be handled easily. For this reason, it is possible to provide the joinery 1 in which the multilayer glasses 15 and 18 are more easily mounted.

  Further, the guide member 50 interposed between the inner peripheral surface 22c and the side facing portion 32d forming the glass housing portion 20a of the housing 20, and the inner peripheral surface 11b and the side surface facing portion forming the glass housing portion 11a. The guide member 60 interposed between the glass housing portions 11a and 20a has flat surfaces 50a and 60a on the center side, and the side surfaces 15a and 18a of the multilayer glasses 15 and 18 at the side facing portions 16b and 32d. Since the lower surfaces 16d and 32h on the back side of the upper surfaces 16c and 32g opposite to each other are flat, the side facing portions 16b and 32d of the fixed window side clamping member 16 and the open / close door side clamping member 30 provided with the double glazings 15 and 18 are guided by the guide member 50. , 60 and moving it in the expected direction, it is possible to easily dispose the double glazings 15 and 18 at predetermined positions.

  Further, when the fixed window side clamping member 16 is fixed to the window frame 11 with the screws 52 entering from the window frame 11 side, the portion between the portion of the window frame 11 facing the multilayer glass 15 and the multilayer glass 15 Since the interposed gasket 62 is compressed, high sealing performance between the window frame 11 and the multilayer glass 15 is ensured, and the multilayer glass 15 can be held in a more stable state. Further, after the open / close door side clamping member 30 is fixed to the housing 20 with the screws 52 entering from the housing 20 side, the space between the portion of the housing 20 facing the multi-layer glass 18 and the multi-layer glass 18. Since the gasket 51 is inserted while being compressed, a high sealing property between the housing 20 and the multilayer glass 18 is ensured, and the multilayer glass 18 can be held in a more stable state. .

  In the above embodiment, the joinery 1 having the fixed window 10 and the single opening window 13 has been described as an example. However, the present invention is not limited thereto, and only the fixed window, the joinery only of the single opening window 13, or the like, Any joinery may be used as long as it has a sandwiching member that is inserted into the glass housing part together with the glass and sandwiches the glass together with the frame material.

  In the above-described embodiment, the casing 20, the clamping members 16, 30 and the opening 14a as the outer peripheral member are described as rectangular. However, the present invention is not limited to this, and other shapes such as a circular shape may be used. It doesn't matter.

  Moreover, in the said embodiment, although the multilayer glass which has three sheet glass was used, it is not restricted to this, It is a single sheet glass, or it is the multilayer glass which has 2 sheets or 4 or more sheet glass. It does not matter.

  Moreover, the said embodiment is for making an understanding of this invention easy, and is not for limiting and interpreting this invention. The present invention can be changed and improved without departing from the gist thereof, and it is needless to say that the present invention includes equivalents thereof.

DESCRIPTION OF SYMBOLS 1 Joinery, 10 Fixed window, 10a opening, 11 Window frame, 11a Glass accommodating part,
11b Inner peripheral surface, 11c Glass facing part, 12 Longitudinal bone, 13 Single window,
14 Opening / closing door, 14a Opening, 15 Multi-layer glass, 15a Side,
16 fixed window side clamping member, 16a frame part, 16b side facing part,
16c upper surface, 16d lower surface, 18 double-glazed glass, 18a side surface, 20 housing,
20a glass housing part, 22 lower arm, 22a window frame facing part, 22b glass facing part,
22c inner peripheral surface, 22d facing surface, 22e main body, 22g surface facing the outdoor side,
30 Opening / closing door side clamping member, 32a Main body facing portion, 32b Circumferential end facing portion,
32c Frame portion, 32d Side facing portion, 32e Main body facing surface, 32f facing surface,
32g upper surface, 32h lower surface, 50 guide member, 51 gasket,
52 screws, 60 guide members, 62 gaskets, 100 joinery,
110 Opening / closing door, 111 Window frame, 111b Opposing part, 112 Gasket,
120 pressed edges, 140 double-glazed glass, 160 frame

Claims (3)

Forming an opening, an outer peripheral member having a glass accommodating portion for accommodating the glass provided in the opening; and
A frame having an outer peripheral facing portion facing the portion forming the opening of the outer peripheral member and a peripheral end facing portion facing the peripheral end of the glass, and the glass so as to protrude from the frame and surround the glass A sandwiching member that sandwiches the glass housed in the glass housing part together with the outer peripheral member,
I have a,
Fittings the glass is characterized that you have been adhered to the peripheral end face portion. The joinery according to claim 1 ,
Between the inner peripheral surface forming the glass housing portion of the outer peripheral member and the side surface facing portion, a guide member in which a central surface of the glass housing portion is formed flat is interposed,
The joinery characterized by the back side of the surface facing the said side surface of the said glass in the said side surface opposing part being formed flat. The joinery according to claim 1 or claim 2 ,
A gasket is interposed between the portion of the outer peripheral member facing the glass and the glass, and the clamping member is fixed to the outer peripheral member with a screw entering from the outer peripheral member side. Joinery.

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