JP5185804B2 - Joinery - Google Patents

Description

  The present invention relates to a fitting such as a sliding window, and more particularly, to a fitting including a window frame and a pair of indoor and outdoor shojis supported by the window frame.

  In a sliding window of a house or the like, a structure in which an indoor rail and an outdoor rail for guiding indoor and outdoor shojis are provided on a lower frame, and a resin cover member is attached between the indoor and outdoor rails has been proposed. (For example, refer to Patent Documents 1 and 2).

JP 2001-271557 A Japanese Patent No. 3198073

  However, as described in Patent Documents 1 and 2, the resin cover member attached between the indoor and outdoor rails in the lower frame is likely to be deformed when heated by solar radiation, temperature change, etc. There is a concern about the deformation of the cover member on the outdoor side, which is easily affected by solar radiation. Furthermore, the cover member, which is a long member along the longitudinal direction of the lower frame, is likely to be subject to large bending deformation (warping) due to thermal expansion and contraction, and if both ends of the cover member are lifted, it may become an obstacle for opening and closing the shoji. There is.

  An object of the present invention is to provide a fitting capable of suppressing the deformation of a cover member provided on a lower frame and ensuring a smooth opening and closing of a shoji.

The joinery of the present invention is a joinery comprising a window frame having an upper frame, a lower frame, and left and right vertical frames, and a pair of indoor and outdoor shojis supported by the window frame, The frame includes an indoor rail portion that guides the indoor shoji, an outdoor rail portion that guides the outdoor shoji, and a concave groove portion that extends in the longitudinal direction of the lower frame between the indoor and outdoor rail portions. A metal cover member is provided through a plurality of resin mounting members in the recessed groove portion that is formed and is located outside the indoor shoji in the closed state, and the outdoor side in the closed state A resin-made second cover member is directly attached to the lower frame in the concave groove portion located on the indoor side of the shoji .

  According to the present invention described above, the cover member covering the bottom surface of the recessed groove portion is made of metal in the recessed groove portion located outside the indoor shoji in the closed state, that is, the recessed groove portion located in the outdoor space. The deformation of the cover member when heated by solar radiation or the like can be suppressed. Therefore, by preventing the cover member from warping, the cover member does not obstruct the opening and closing of the shoji, and the shoji can be opened and closed smoothly. And by attaching this cover member to the lower frame through a resin mounting member, heat transfer from the cover member to the lower frame can be suppressed, and even if the cover member is heated or cooled, the lower frame by that It is possible to secure the heat insulation performance of the window frame.

In this case, the fittings of the present invention, before Symbol mounting member, the longitudinal length is formed shorter than the length in the longitudinal direction of the metallic cover member, the longitudinal end portion of at least the cover member It is preferable to be attached to the lower frame at two corresponding locations.
In the joinery of the present invention, the lower frame is formed to include a metal indoor member and an outdoor member, and a resin heat insulating member that connects the indoor member and the outdoor member. The indoor rail portion is provided, the outdoor member is provided with the outdoor rail portion, and the mounting member includes a first engaged portion that is engaged with a base end portion of the indoor rail portion, and the outdoor member. A second engaged portion that is engaged with the base end portion of the rail portion, and is provided between the indoor side edge of the cover member and the indoor rail portion, and the outdoor side edge of the cover member and the It is preferable that a gap is provided between each of the outdoor rail portions.
In the joinery of the present invention, the cover member is formed to have an upper surface portion and a held portion that protrudes downward from the upper surface portion and is held by the mounting member. It is preferable that the portion that is formed along the longitudinal direction of the cover member and that is not held by the mounting member of the held portion is provided to face the bottom surface of the concave groove portion with a gap.

Hereinafter, each embodiment of the present invention will be described with reference to the drawings.
In the second and subsequent embodiments, the same constituent members as those described in the first embodiment and the constituent members having the same functions are denoted by the same reference numerals as those in the first embodiment. Those descriptions are omitted or simplified.

[First Embodiment]
Drawing 1 is a longitudinal section showing sliding window 1 which is a fitting concerning an embodiment of the present invention.
The sliding window 1 is provided in an opening of an outer wall of a building such as a detached house and separates the indoor space and the outdoor space of the building. The sliding window 1 wraps around the upper frame 2, the lower frame 3, and the left and right vertical frames 4. The window frame 5 is a frame, and a pair of indoor and outdoor shoji 6 and 7 and a screen door 8 are supported inside the window frame 5 so as to be freely opened and closed. The indoor and outdoor shojis 6 and 7 (the indoor shoji 6 and the outdoor shoji 7) are guided by the doors 14 provided on the lower arm 12 to rails 38 and 48 (described later) of the lower frame 3, The sliding piece 15 provided at the upper end of the vertical hook is guided by the upper rails 2A and 2B of the upper frame 2 so that it can be opened and closed to the left and right.

Next, the structure of the lower frame 3 in the sliding window 1 will be described in detail with reference to FIGS. Here, FIG. 2 is a plan view showing the lower frame 3, and FIG. 3 is an enlarged longitudinal sectional view showing the lower frame 3. FIG. 4 is an enlarged perspective view showing a main part of the lower frame 3.
The lower frame 3 is a frame material having a heat insulation specification configured by including an indoor member 3A and an outdoor member 3B each made of an extruded aluminum material, and a resin heat insulating member 3C that connects them. Although the detailed description is omitted, the upper frame 2 and the vertical frame 4 are also heat-insulated, that is, the window frame 5 in the sliding window 1 is configured as a heat-insulating window frame.

  The indoor member 3 </ b> A has an indoor rail portion 38 that guides the door wheel 14 of the indoor shoji 6. The outdoor member 3B includes a fixed piece portion 41 that is fixed to a building housing (not shown), a connecting portion 42 that is provided on the upper portion of the fixed piece portion 41 and engages with the heat insulating member 3C, and an outdoor side from the connecting portion 42. An inclined upper surface portion 43 that is inclined downward and extends downward, a horizontal upper surface portion 44 that extends substantially horizontally continuously to the outdoor side of the inclined upper surface portion 43, and extends downward from the outdoor side of the horizontal upper surface portion 44. The outdoor side surface portion 45, the bottom surface portion 46 extending from the fixed piece portion 41 to the outdoor side and intersecting the outdoor side surface portion 45, the rising piece portion 47 rising upward from the vicinity of the outdoor end of the horizontal upper surface portion 44, and this rising An outdoor rail 48 that extends further upward from the upper end of the piece 47 and guides the door wheel 14 of the outdoor shoji 7, and extends upward from the upper end of the rising piece 47 to bend upward and guides the door of the screen door 8. With screen door rail 49 It is formed.

  The lower frame 3 includes an indoor rail portion 38 of the indoor member 3A, an upper surface of the heat insulating member 3C, an inclined upper surface portion 43, a horizontal upper surface portion 44, a rising piece portion 47, and an outdoor rail portion 48 of the outdoor member 3B. Thus, a concave groove portion 3E opened upward is formed. The recessed groove portion 3 </ b> E is formed extending along the longitudinal direction of the lower frame 3 between the indoor rail portion 38 and the outdoor rail portion 48. As shown in FIG. 2, a resin windbreak plate 3F is provided in the groove 3E at the center of the lower frame 3 in the longitudinal direction and below the summing part of the indoor and outdoor shoji 6 and 7. Yes. This windshield plate 3F partitions the concave groove portion 3E to the left and right, and abuts against the lower end portion of the summoning cages (inner and outer vertical rods) with the indoor and outdoor shoji 6 and 7 closed. Thus, the outdoor air and rainwater are prevented from entering the indoor side through the recessed groove portion 3E, and the airtightness and watertightness can be secured.

  In the concave groove portion 3E of the lower frame 3 as described above, a resin cover member (second cover member) 3G (see FIG. 1) and an aluminum extruded profile (made of metal) are provided on the left and right sides of the windshield plate 3F. Cover members 3H (see FIG. 3) are respectively provided, and the cover members 3H are attached to the lower frame 3 via resin attachment members 3J at both ends in the longitudinal direction. That is, the upper surface of the inclined upper surface portion 43 and the horizontal upper surface portion 44 which are the bottom surfaces of the concave groove portion 3E is covered with the cover members 3G and 3H. Here, an engagement portion 38A that is recessed toward the indoor side is formed outside the base end portion of the indoor rail portion 38 in the indoor member 3A, and a continuous portion of the rising piece 47 and the outdoor rail portion 48 in the outdoor member 3B. Is formed with an engaging portion 48A recessed outward. Further, drainage parts (drainage valves) are disposed at appropriate plural positions along the longitudinal direction of the lower frame 3 on the outdoor side of the outdoor member 3B of the lower frame 3 on the outdoor side surface portion 45, the rising piece 47 and the outdoor rail portion 48. ) 3K is attached, and rainwater and the like entering the groove 3E can be discharged to the outdoor side through the drain hole 47A provided in the rising piece 47, and insects and the like from the outdoor side to the groove 3E The entry can be prevented.

  The resin cover member 3G is provided in the recessed groove portion 3E located on the indoor side of the outdoor shoji 7 in the closed state on the left side of the windshield plate 3F in FIG. By providing such a resin cover member 3G in the recessed groove portion 3E located in the indoor space, it is possible to ensure the heat insulation performance of the lower frame 3 and to prevent condensation on the surface of the cover member 3G in winter.

  On the other hand, the metal cover member 3H is provided in the concave groove portion 3E located on the outside of the indoor shoji 6 in the closed state on the right side of the windshield 3F in FIG. 2, that is, the cover member 3H. Is provided in the outdoor space with the indoor shoji 6 closed. As shown in FIG. 3, the cover member 3H includes a long plate-like upper surface portion 61 that covers the bottom surface of the recessed groove portion 3E, and a pair of indoor and outdoor that protrudes downward from the upper surface portion 61 and is held by the mounting member 3J. It is formed having held parts 62 and 63. The upper surface portion 61 is provided with a downward gradient from the indoor side toward the outdoor side, and the outdoor edge thereof is bent downward, so that rainwater or the like that has fallen on the upper surface portion 61 is horizontal to the outdoor member 3B. It is configured to fall on the upper surface portion 44.

  In addition, the indoor-side held portion 62 is formed in a substantially L shape by bending its lower end portion indoors, and its lower end surface is a predetermined distance above the inclined upper surface portion 43 of the outdoor member 3B. Only provided apart. Further, the outdoor-side held portion 63 is formed in a substantially L shape with its lower end bent to the outdoor side, and its lower end surface is also provided at a predetermined distance above the inclined upper surface portion 43. ing. Therefore, even if a load is applied to the upper surface portion 61 at the intermediate portion in the longitudinal direction of the cover member 3H and the cover member 3H bends downward, at least one of the pair of held portions 62 and 63 contacts the inclined upper surface portion 43. By contacting, the deformation of the cover member 3H is suppressed, and when the load is not applied, the cover member 3H returns to the initial state (the state shown in FIG. 3) due to its elasticity.

  Next, as shown in FIG. 4, the attachment member 3 </ b> J is a piece-like member whose length in the longitudinal direction is shorter than the length in the longitudinal direction of the cover member 3 </ b> H, and is provided in the intermediate portion in the prospective direction. A first upper surface portion 71 that faces the lower surface of the upper surface portion 61 of the cover member 3H, a first groove portion 72 that is recessed downward along the indoor side of the first upper surface portion 71, and an indoor side of the first groove portion 72. A second upper surface portion 73 provided substantially flat with the first upper surface portion 71, and a first engaged portion 74 that extends downward from the indoor side of the second upper surface portion 73 and is bent toward the indoor side. Is formed. Furthermore, the mounting member 3J includes a second groove 75 that is recessed downward along the outdoor side of the first upper surface 71, a protruding piece 76 that constitutes the outdoor side surface of the second groove 75, and the protruding piece The first holding portion is formed to have a second engaging piece portion 77 extending from the lower portion of the 76 to the upper side of the outdoor side, and is continuous with the outdoor side of the second upper surface portion 73 on the upper chamber side of the first groove portion 72. 78 is formed, and on the outer side of the upper chamber of the second groove portion 75, a second holding portion 79 is formed protruding from the upper end portion of the projecting piece portion 76 to the indoor side.

  In the mounting member 3J, the first engaged portion 74 is engaged with the engaging portion 38A of the lower frame 3, and the second engaging piece portion 77 is engaged with the engaging portion 48A of the lower frame 3. In this attached state, the second engaging piece 77 is slightly bent while being engaged with the engaging portion 48A in a pressed state, so that the attaching member 3J does not rattle. 3 can be attached. In this attached state, the lower surface 72A of the first groove portion 72, the lower end portion 72B of the outdoor side surface, and the lower surface 75A of the second groove portion 75 are in contact with the inclined upper surface portion 43 of the outdoor member 3B. The base end portion 77A of the second engagement piece portion 77 is in contact with the horizontal upper surface portion 44.

  As shown in FIG. 3, the cover member 3 </ b> H inserts the indoor-side held portion 62 into the first groove portion 72 to engage the front end with the first holding portion 78, and the outdoor-side held portion 63. By inserting the tip into the second groove 75 and engaging the tip with the second holding portion 79, the mounting member 3J holds the tip. Further, the outdoor side edge of the upper surface portion 61 is pushed to bend the upper surface portion 61 upward and the outdoor held portion 63 is removed from the second holding portion 79, and then the indoor held portion 62 is moved to the first. By removing from the holding part 78, the cover member 3H can be removed from the attachment member 3J. Further, in a state where the cover member 3H is attached, the indoor side edge of the upper surface portion 61 and the indoor rail portion 38 are separated by a predetermined distance, and a gap is formed between them, and the outdoor edge of the upper surface portion 61 The outdoor rail portion 48 is separated by a predetermined distance, and a gap is formed between them. Therefore, even if the cover member 3H is heated by the solar radiation in the summer or cooled in the winter, the heat is not transmitted to the lower frame 3, and the heat insulating performance of the lower frame 3 is not hindered.

  According to the above embodiment, since the cover member 3H provided in the ditch | groove part 3E located in outdoor space is metal, the deformation | transformation of the cover member 3H at the time of being heated by solar radiation etc. can be suppressed. Accordingly, by preventing the cover member 3H from warping, the cover member 3H can smoothly open and close the shoji 6 and 7 without obstructing the opening and closing of the shoji 6 and 7. And the heat transfer from the cover member 3H to the lower frame 3 can be suppressed by attaching both ends of the cover member 3H in the longitudinal direction to the lower frame 3 by the resin mounting members 3J, and the cover member 3H is heated or cooled. Even if it was done, the heat influence to the lower frame 3 by it can be excluded, and heat insulation performance can be ensured.

[Second Embodiment]
Next, a second embodiment of the present invention will be described with reference to FIGS.
FIG. 5 is an enlarged longitudinal sectional view showing the lower frame 3 of the second embodiment. FIG. 6 is an enlarged perspective view showing a main part of the lower frame 3.
In this embodiment, although the form of the attachment member that supports the cover member 3H is different from that of the first embodiment, the configurations of the window frame 5 and the shojis 6 and 7 are substantially the same as those of the first embodiment. Hereinafter, the differences will be described in detail.

  The attachment member 3L is a piece-like member similar to the attachment member 3J, and is similar to the attachment member 3J, the first upper surface portion 71, the first groove portion 72, the second upper surface portion 73, and the first engaged portion. 74, a second groove portion 75, a projecting piece portion 76, a first holding portion 78, and a second holding portion 79, and a substantially triangular tubular drainage portion 80 instead of the second engaging piece portion 77. Is formed. The drainage portion 80 is formed to have a drainage inclined surface portion 81 inclined from the base end portion of the projecting piece portion 76 to the outdoor upper side, and drainage side surface portions 82 provided at both left and right end portions of a substantially triangular cylindrical shape, It is provided at a position that contacts the rising piece 47 of the outdoor member 3B and covers the indoor side of the drain hole 47A. A plurality of slit-shaped drain holes 83 and 84 are formed in the drain inclined surface portion 81 and the drain side surface portion 82, respectively. By attaching the attachment member 3L to the lower frame 3 and holding the cover member 3H by the attachment member 3L, the same effect as in the first embodiment can be obtained. Furthermore, by using the mounting member 3L of the second embodiment, rainwater or the like in the recessed groove portion 3E can be discharged from the drainage portion 80 to the outside through the drainage hole 47A, and the outdoor side by the slit-like drainage holes 83 and 84. Thus, it is possible to prevent insects and the like from entering the groove 3E.

In addition, this invention is not limited to the said embodiment, What is necessary is just to provide the following structures which can achieve the objective of this invention.
(1) A joinery of the present invention is a joinery including a window frame having an upper frame, a lower frame, and left and right vertical frames, and a pair of shojis on the indoor side and the outdoor side supported by the window frame. The lower frame includes an indoor rail portion for guiding the indoor shoji, an outdoor rail portion for guiding the outdoor shoji, and a groove portion extending in the longitudinal direction of the lower frame between the indoor and outdoor rail portions. It is only necessary that a metal cover member is provided in the recessed groove portion formed on the outside of the indoor shoji in a closed state and provided with a plurality of resin mounting members.

  According to the present invention described above, in the recessed groove portion positioned outside the indoor shoji in the closed state, the cover member that covers the bottom surface of the recessed groove portion is made of metal, so that it is heated by solar radiation or the like. The deformation of the cover member can be suppressed. Therefore, by preventing the cover member from warping, the cover member does not obstruct the opening and closing of the shoji, and the shoji can be opened and closed smoothly. And by attaching this cover member to the lower frame through a resin mounting member, heat transfer from the cover member to the lower frame can be suppressed, and even if the cover member is heated or cooled, the lower frame by that It is possible to secure the heat insulation performance of the window frame.

(2) In the joinery of the present invention, it is preferable that a resin-made second cover member is directly attached to the lower frame in the recessed groove portion located on the indoor side of the closed outdoor sliding door.
According to such a structure, in the recessed groove part located in the indoor side of the outdoor side shoji of the closed state, it exposes to indoor space by attaching the cover member which covers the bottom face of the said recessed groove part as resin, to a lower frame Heat insulation performance by the cover member can be secured, and condensation in winter can be prevented. Here, since the cover member located in the indoor space is not easily affected by the solar radiation in summer, the cover member is not likely to become an obstacle for opening and closing the shoji due to the deformation of the cover member, and the heat insulating property by the resin cover member The advantage of improvement is great.

(3) In the joinery of the present invention, the attachment member is configured such that the length in the longitudinal direction is shorter than the length in the longitudinal direction of the metal cover member, and at least corresponds to both ends in the longitudinal direction of the cover member. It is preferable to be attached to the lower frame at two locations.
According to such a configuration, since the length in the longitudinal direction is a piece-like member shorter than the length in the longitudinal direction of the metal cover member, the influence on the deformation of the cover member due to the thermal expansion and contraction of the mounting member Can be suppressed. That is, if the mounting member is a member having the same length as the cover member, the mounting member is easily warped by being heated through the cover member, but if the mounting member is a piece member, Since the warpage of each mounting member is negligible, the deformation of the cover member can be more reliably suppressed.

(4) In the joinery of the present invention, the lower frame is formed to include a metal indoor member and an outdoor member, and a resin heat insulating member that connects the indoor member and the outdoor member. The member is provided with the indoor rail portion, the outdoor member is provided with the outdoor rail portion, and the attachment member includes a first engaged portion engaged with a base end portion of the indoor rail portion, A second engaged portion that is engaged with a base end portion of the outdoor rail portion, and is provided between the indoor side edge of the cover member and the indoor rail portion, and the outdoor side edge of the cover member. It is preferable that a gap is provided between each of the outdoor rail portions.
According to such a configuration, the lower frame is configured from the indoor member, the outdoor member, and the heat insulating member so as to have a heat insulating specification, and the first engaged portion is engaged with the base end portion of the indoor rail portion of the indoor member. When the attachment member is attached, since this attachment member is made of resin, heat transfer to the indoor member can be suppressed to ensure heat insulation performance. Further, by providing a gap between the indoor side edge of the cover member and the indoor rail portion, even when the metal cover member is heated or cooled, the heat is not transmitted to the indoor member, and the lower frame It is possible not to disturb the heat insulation performance. In addition, by providing a gap between the outdoor edge of the cover member and the outdoor rail, even if rain or the like falls on the upper surface of the cover member, the rainwater is guided from the gap to the concave groove, and appropriate drainage is performed. Water can be drained from the hole to the outdoor space.

(5) In the joinery of the present invention, the cover member is formed to have an upper surface portion and a held portion that protrudes downward from the upper surface portion and is held by the mounting member. It is preferable that the portion that is formed along the longitudinal direction of the cover member and is not held by the mounting member of the held portion is provided to face the bottom surface of the concave groove portion with a gap.
According to such a configuration, the held portion of the cover member and the bottom surface of the concave groove portion are opposed to each other via the gap, so that the heat of the cover member is prevented from being transmitted to the lower frame, and the lower frame The heat insulation performance can be ensured. Further, the distance between the held portion and the bottom surface of the groove portion is such that the load portion is in contact with the bottom surface of the groove portion when a load acts on the upper surface portion of the cover member and the cover member is bent. If set, the applied load can be transmitted to and supported by the lower frame, and excessive deformation of the cover member can be prevented.

Further, the following modifications and the like are also included in the present invention.
For example, in the above-described embodiment, the sliding window 1 having a pair of indoor and outdoor shojis 6 and 7 has been described as an example, but the joinery of the present invention can be used for any one of the indoor and outdoor shojis 6 and 7. It may be a one-sided window fixed to the window frame 5 so as not to move.
Moreover, in the said embodiment, although it was set as the structure which attaches this cover member 3G to the lower frame 3 directly from the cover member 3G provided in the recessed groove part 3E along the outdoor outdoor shoji 7 of the closed state, it is the cover member 3H. It may be attached to the lower frame 3 using the same attachment members 3J, 3L, or may be made of metal like the cover member 3H.

In addition, the best configuration, method and the like for carrying out the present invention have been disclosed in the above description, but the present invention is not limited to this. That is, the invention has been illustrated and described with particular reference to certain specific embodiments, but without departing from the spirit and scope of the invention, Various modifications can be made by those skilled in the art in terms of material, quantity, and other detailed configurations.
Therefore, the description limiting the shape, material, etc. disclosed above is an example for easy understanding of the present invention, and does not limit the present invention. The description by the name of the member which remove | excluded the limitation of one part or all of such restrictions is included in this invention.

It is a longitudinal section showing a fitting concerning an embodiment of the present invention. It is a top view which shows the lower frame which concerns on 1st Embodiment of the said fitting. It is a longitudinal cross-sectional view which expands and shows the said lower frame. It is a perspective view which expands and shows the principal part of the said lower frame. It is a longitudinal cross-sectional view which expands and shows the lower frame which concerns on 2nd Embodiment of the said fitting. It is a perspective view which expands and shows the principal part of the said lower frame.

Explanation of symbols

  2 ... upper frame, 3 ... lower frame, 3A ... indoor member, 3B ... outdoor member, 3C ... heat insulating member, 3E ... concave groove, 3G ... cover member (second cover member), 3H ... cover member, 3J, 3L ... Mounting member, 4 ... vertical frame, 5 ... window frame, 6 ... indoor side shoji, 7 ... outdoor shoji, 38 ... indoor rail portion, 48 ... outdoor rail portion, 61 ... upper surface portion, 62, 63 ... held portion, 74: first engaged portion, 77: second engaging piece portion.

Claims (4)

A joinery comprising an upper frame, a lower frame, and a window frame having left and right vertical frames, and a pair of shojis on the indoor side and the outdoor side supported by the window frame,
The lower frame includes an indoor rail portion for guiding the indoor shoji, an outdoor rail portion for guiding the outdoor shoji, and a groove portion extending in the longitudinal direction of the lower frame between the indoor and outdoor rail portions. Formed with
A metal cover member is provided through a plurality of resin mounting members in the recessed groove portion located outside the indoor shoji in the closed state ,
A fitting in which a second cover member made of resin is directly attached to the lower frame in the recessed groove portion located on the indoor side of the outdoor shoji in the closed state . The mounting member is configured such that the length in the longitudinal direction is shorter than the length in the longitudinal direction of the metal cover member, and at least two positions corresponding to both ends in the longitudinal direction of the cover member are attached to the lower frame. fittings according to claim 1 attached. The lower frame includes a metal indoor member and an outdoor member, and a resin heat insulating member that connects the indoor member and the outdoor member, and the indoor rail portion is provided on the indoor member. The outdoor rail is provided on the outdoor member,
The attachment member is provided with a first engaged portion that is engaged with a proximal end portion of the indoor rail portion, and a second engaged portion that is engaged with a proximal end portion of the outdoor rail portion. ,
Between the indoor side edge and the indoor rail portion of said cover member, and between the exterior side edge and the outdoor rail portions of the cover member, according to claim 1 or claim gaps are provided respectively The joinery described in 2 . The cover member includes an upper surface portion and a held portion that protrudes downward from the upper surface portion and is held by the mounting member.
The held portion is formed along the longitudinal direction of the cover member, and a portion of the held portion that is not held by the attachment member is provided to face the bottom surface of the concave groove portion via a gap. The joinery according to any one of claims 1 to 3 .

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