JP4005449B2 - Sash mounting frame and its parts - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a mounting frame for mounting a sash on the inside and a corner cover provided in the mounting frame.
[0002]
[Prior art]
Some bay windows and overhanging windows have a mounting frame taken out of the building frame and attached to the outside, and a sash is attached to the inside of the mounting frame.
[0003]
The mounting frame, like the sash frame, abuts the longitudinal ends of the upper and lower horizontal frames against the opposing surfaces of the upper and lower ends of the left and right vertical frames and penetrates the screws from the side surfaces of the vertical frames to the horizontal frame. Although it is framed by screwing into the provided screw holes, the mounting frame projects outward from the building outer wall, so the head of the screw is exposed at each corner of the mounting frame. It is desired to prevent the appearance of the mounting frame from being deteriorated due to the exposure of the screw head.
[0004]
Here, terms are defined and set. The upper frame and the lower frame of the mounting frame are referred to as the upper mounting frame and the lower mounting frame, respectively, and the vertical frame of the mounting frame is referred to as the mounting vertical frame. The upper and lower frames of the attachment frame may be collectively referred to as the attachment horizontal frame. The upper frame, the lower frame, and the vertical frame of the sash frame are simply referred to as the upper frame, the lower frame, and the vertical frame, respectively. With respect to the mounting vertical frame or the vertical frame, the side surface refers to a surface opposite to the window opening with respect to the vertical frame.
[0005]
One of the technical ideas (referred to as the first prior art) for preventing the appearance of the mounting frame from deteriorating due to the exposure of the head of the screw connecting the mounting vertical frame and the mounting horizontal frame is disclosed in Japanese Patent Laid-Open No. 9-88429. It is described incidentally. This is because the mounting bracket having the engaging portion is fixed to the vicinity of the longitudinal end portion of the mounting vertical frame with a screw, and the cover member having the engaged portion engaged with the engaging portion of the mounting bracket is snapped. The head of the screw which mounts | wears and connects an attachment vertical frame and an attachment horizontal frame is concealed.
[0006]
Another technical idea (referred to as second prior art) for preventing the appearance of the mounting frame from being deteriorated due to the exposure of the head of the screw connecting the mounting vertical frame and the mounting horizontal frame is disclosed in Japanese Patent Laid-Open No. 10-220113. It is described in the gazette. This consists of a corner piece divided into a corner block and a corner cover, and the corner block is fixed to the side of the mounting vertical frame with screws connecting the mounting vertical frame and the mounting horizontal frame. And the two are joined by different screws.
[0007]
[Problems to be solved by the invention]
In both the first and second prior arts, a part made of a material different from the mounting vertical frame, such as a mounting bracket or a corner block, is attached to the mounting vertical frame. It was fixed by using a screw to be connected or by a screw different from the screw, and a cover material or a corner cover was attached to the mounting bracket or corner block by a snap or by screwing.
Therefore, in order to achieve the simple purpose of concealing the head of the screw connecting the mounting vertical frame and the mounting horizontal frame, the conventional technology fixes the parts with high production cost by troublesome screwing work, However, there is a difficulty in requiring a work of mounting a cover material or a corner cover which is a separate part.
[0008]
The present invention has been made paying attention to the above circumstances, and a first problem thereof is a portion that is connected to the mounting horizontal frame of the mounting vertical frame by screws and its vicinity at a low cost with a simple operation. It is in providing the attachment frame which can conceal.
A second problem is to provide a corner cover that can be easily mounted at a predetermined position of the mounting frame and can conceal the portion connected to the mounting horizontal frame of the mounting vertical frame and the screw and the vicinity thereof.
[0009]
[Means for Solving the Problems]
To solve the above problems, the present onset Ming is mounted brought out from the building structures outdoors side, the mounting frame for mounting the sash on the inside, vertical frame of the mounting frame, the lateral frame and bis mounting frame At least two engagement grooved screws projecting from the side of the vertical frame of the mounting frame are provided in the interior of the connecting frame so as to be separated from each other in the indoor and outdoor direction, and the side of the vertical frame of the mounting frame is closer to the indoor side. A guide ridge is provided at a position, and a concealing plate for concealing a portion of the vertical frame of the mounting frame that is connected to the horizontal frame of the mounting frame by screws and the vicinity thereof, and is formed at one end of the concealing plate A corner cover comprising a stop edge and an engagement portion formed on the inner surface of the concealing plate is guided by the guide ridges in the longitudinal direction from the longitudinal end of the vertical frame of the mounting frame. Slide in the center direction, and engage the corner cover The corner cover is fixedly engaged with the engaging groove of the screw with a mating groove by elastic deformation / restoration of the engaging portion and at the same time the stop edge is brought into contact with the longitudinal end portion of the vertical frame of the mounting frame. It is characterized by being fixed in position .
With the above configuration, the mounting frame is connected to the mounting vertical frame and the mounting horizontal frame by screws in the usual manner. Then, it is only necessary to attach a screw with an engaging groove that is easy to manufacture to the mounting frame, and a corner cover having predetermined components is guided by the guide projections of the mounting vertical frame and slid to a predetermined position in a predetermined direction. When moved, the engaging portion of the corner cover engages with the engaging groove of the screw with the engaging groove and is fixed.
[0010]
The screw with the engagement groove is located at a position spaced from the screw head connecting the vertical mounting frame to the horizontal mounting frame by a distance approximately equal to the thickness of the engaging portion of the corner cover from the head of the screw in the axial direction. It is desirable to provide a flange. Thereby, the corner cover can be fixed with the screws themselves that connect the vertical mounting frame and the horizontal mounting frame.
[0011]
A total of four engaging portions of the corner cover are provided at positions corresponding to the vertices of the rectangle (including the rhombus), and the engaging grooved screws are screw shafts connecting the mounting vertical frame and the mounting horizontal frame. In addition, a flange is provided at a position approximately equal to the thickness of the engaging portion of the corner cover in the direction of the shaft tip from the head of the screw, and the engaging portion of the corner cover from the side surface of the mounting vertical frame. It is desirable to use one or both of ordinary screws screwed into the mounting vertical frame so that the head exists at a position approximately equal to the wall thickness.
With the above configuration, the corner cover mounted on the mounting frame is fixed with high stability.
[0012]
In order to solve the second problem, a corner cover according to a fourth aspect of the present invention includes a concealing plate that conceals a portion of the mounting vertical frame connected to the mounting horizontal frame and the screw and the vicinity thereof, and the concealing plate. A guided portion formed at an indoor side end portion and guided by contact with a guide projection protruding from a side surface of the mounting vertical frame, and a sash mounting opening direction of the mounting frame from the upper side or the lower side of the concealing plate And a stop edge that stops at the longitudinal end of the mounting vertical frame when the guided portion is guided by the guide ridge and is slid, and the mounting vertical frame side of the concealing plate And an engaging portion that engages with an engaging groove of a screw with an engaging groove that protrudes from a side surface of the mounting vertical frame when stopped by the stop edge. Yes.
With the above configuration, when the guided portion is guided by the guide projection of the mounting vertical frame and slid in a predetermined direction, the stop edge is stopped at the longitudinal end of the mounting vertical frame and the corner cover is stopped at the predetermined position. The At the same time, the engaging part engages and is fixed to the engaging groove of the screw with the engaging groove of the mounting vertical frame, and the concealing plate conceals the head of the screw connecting the mounting vertical frame and the mounting horizontal frame.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a perspective view of a bay window showing an embodiment of the present invention, FIG. 2 is a longitudinal sectional view thereof, FIG. 3 is a transverse sectional view thereof, FIG. 4 is a development view of a corner cover, and FIG. FIG. 6 is a sectional view showing an engagement state between the upper engaging portion of the corner cover and the screw with the engagement groove in the mounted state, and FIG. 7 is an engagement on the lower side of the corner cover in the mounted state. It is sectional drawing which shows the engagement state of a part and a screw with an engagement groove | channel.
[0014]
In FIG. 1, FF is a mounting frame attached to the building frame H in a take-out manner. As is well known and shown in FIGS. 2 and 3, the longitudinal direction of the mounting upper frame 1 and the mounting lower frame 2 is shown. The screw holes 11 are formed in the mounting upper frame 1 and the mounting lower frame 2 with screws b1 which are brought into contact with opposite surfaces of both ends in the longitudinal direction of the left and right mounting vertical frames 3 and 4 and penetrated from the side surfaces of the mounting vertical frame. , 21 to be assembled into a rectangular frame.
[0015]
The upper mounting frame 1 and the left and right mounting vertical frames 3 and 4 of the mounting frame FF are fixed by screwing screws n1 into the building frame H from the mounting edges 12, 31, and 41 formed at the respective indoor side ends. In addition, the mounting lower frame 2 is fixed by screwing screws n1 and n2 into the building frame H from mounting edges 22 and 23 formed vertically at the indoor side end.
[0016]
An existing sash frame WF is attached to the inside of the attachment frame FF, and well-known shojis d1 and d2, a screen door d3, and the like are built on the sash frame. In FIG. 1, the screen door d3 is omitted for simplification of the drawing.
As is known, the sash frame WF is a screw that penetrates from both sides of the vertical frame, with the longitudinal ends of the upper frame 5 and the lower frame 6 abutting against the opposing surfaces of the longitudinal ends of the left and right vertical frames 7, 8. By screwing b2 into the screw holes 51 and 61 formed in the upper frame 5 and the lower frame 6, the rectangular frame is assembled.
[0017]
Since the attachment structure of the sash frame WF with respect to the attachment frame FF is not the gist of the present invention, any known structure may be used. However, the illustrated example will be briefly described above the upper frame 5. The extending support edge 52 is in contact with the fixed edge 13 that is suspended from the expected width intermediate position of the mounting upper frame 1, and the outdoor side portion 53 of the upper frame 5 is provided at the lower end on the outdoor side of the mounting upper frame 1. The upper frame 5 is fixed to the mounting upper frame 1 by screwing the screw b3 from the support edge 52 to the fixed edge 13 in a state where the receiving edge 14 is pressed through the elastic water-tight material.
[0018]
The lower frame 6 is attached to the upper surface of the intermediate portion of the estimated width of the mounting lower frame 2 by attaching the auxiliary material 6A by screwing and / or sliding fitting, and extends to the auxiliary material 6A below the lower frame 6. The attachment lower frame is made by engaging the edges 62 and 63 and pressing the outdoor side portion 64 of the lower frame 6 against the receiving edge 24 provided at the upper end on the outdoor side of the attachment lower frame 2 via an elastic watertight material. 2 is fixed.
[0019]
In addition, the left and right vertical frames 7 and 8 project support edges 71 and 81 projecting on the side surfaces at the estimated width intermediate portions of the side surfaces in a direction facing the estimated width intermediate positions of the mounting vertical frames 3 and 4. And the receiving edges 33 and 43 projecting in the direction facing the outdoor side ends of the mounting vertical frames 3 and 4 and the outdoor side ends of the vertical frames 7 and 8. The screw b4 is screwed into the fixed edges 32, 42 from the support edges 71, 81 while being pressed through the elastic water-tight material, and is fixed to the mounting vertical frames 3, 4.
2 and 3, reference numerals 9t, 9b, and 9s denote decoration frames of the bay window fixed to the building frame, and the indoor side end portions of the upper frame 5, the lower frame 6, and the vertical frames 7 and 8 of the sash frame, respectively. Is fixed to the decorative frame by a wood screw n3.
[0020]
As described above, since the sash frame WF is housed inside the mounting frame FF and the outer periphery thereof is covered, the head of the screw b2 connecting the upper and lower frames 5, 6 and the vertical frames 7, 8 is It is not exposed to the outside. However, the heads of the screws b1 connecting the mounting horizontal frames 1 and 2 and the mounting vertical frames 3 and 4 are exposed outside the corner portions of the mounting frame FF.
In the present invention, in order to prevent the exposure of the screw b1, a specific structure is added to the mounting vertical frames 3 and 4, a specific screw with an engagement groove is used as a part, and the specific structure and screw are used. Corner covers C1 to C4 are attached using Hereinafter, these will be described in detail.
[0021]
First, as shown in FIGS. 1, 5, 6 , and 7 , guide ridges 34 that extend in the longitudinal direction of the mounting vertical frames 3 and 4 are provided on the mounting vertical frames 3 and 4 at positions closer to the indoor side of the side surfaces. , 44 are formed. Further, on the side surface of each corner portion connected to the mounting horizontal frames 1 and 2 of the mounting vertical frames 3 and 4, screws B with engagement grooves are projected. At least two of the engaging grooved screws B are provided in each corner portion so as to be separated in the expected width direction of the mounting vertical frames 3 and 4. The engagement grooved screw B may preferably be a screw itself connecting the mounting vertical frames 3 and 4 and the mounting horizontal frames 1 and 2. In this case, as shown in the upper part of FIG. 5 and FIG. 6, the screw B has a flange f integrally provided on the shaft at a predetermined distance from the head h, and is engaged between the head h and the flange f. The groove g is formed. In addition to the screws connecting the mounting vertical frames 3 and 4 and the mounting horizontal frames 1 and 2, the engaging groove screw B has a normal screw B ′ as shown in the lower part of FIG. Can be used as a screw with an engagement groove by setting the screwing amount so that the engagement groove g is formed between them at a predetermined distance from the side surface of the mounting vertical frame 4.
[0022]
Next, the corner covers C1 to C4 have shapes and structures as shown in a development view in FIG. 4 shows the shape of the corner cover C2 attached to the upper right corner portion of FIG. 1 among the corner covers C1 and C2 attached to the connecting portions of the attachment vertical frames 3 and 4 and the attachment upper frame 1. FIG.
That is, the corner cover C2 is formed in a dredger shape that is almost rolled over, has a concealing plate 101 at a position corresponding to the bottom of the dredger, and extends from a surface that is continuous in the vertical direction to the indoor side end of the concealing plate. A guided portion 102 is formed. The guided portion 102 is guided in contact with the guide projection 44 of the mounting vertical frame 4 and can slide in the vertical direction. The upper plate 103 corresponding to the dredger of the dredger at the upper end portion of the concealing plate 101 is formed with a stop edge 104 that slightly protrudes toward the mounting vertical frame side. The stop edge 104 is locked to the upper end surface of the mounting vertical frame 4 when the guided portion 102 abuts against the guide projection 44 of the mounting vertical frame 4 and slides downward, thereby fixing the corner cover C2 to a predetermined position. It is for stopping at the position. The size of the concealment plate 101 is set so that the outdoor surface 105 of the concealment plate 101 is flush with the outdoor surface of the mounting upper frame 1 when the corner cover C2 is positioned at a predetermined position. Thereby, when the corner cover C2 is mounted and fixed at a predetermined position as will be described later, the corner cover C2 closes a portion of the small edge of the mounting upper frame 1 that is not blocked by the mounting vertical frame 4.
[0023]
On the inner surface of the concealment plate 101 of the corner cover C2 corresponding to the bottom of the dredger, there are intervals corresponding to the screws B, B; B ′, B ′ with the engaging grooves in the upper corner portion of the mounting frame FF described above. Holding portions 106 and 107 are formed. As an example, the engaging portions are formed so as to protrude from the inner surface of the concealing plate into an L-shaped cross section, and the front ends thereof are opposed to each other along a surface parallel to the concealing plate 101, and the engagement grooved screws are engaged. Concave surfaces 106a and 107a corresponding to the convex surface of the outer periphery of the shaft of the engaging grooved screw are formed at the center of the tip of the mating groove g. At least a pair of engaging portions are provided, but in the example shown in the figure, the upper and lower sides correspond to two pairs (B, B; B ′, B ′) of the engaging grooved screws of the mounting vertical frame 4. Two pairs (106, 107) are provided.
[0024]
Due to the above-described configuration of the corner cover C2, when the guided portion 102 is slid downward while being applied to the outdoor surface of the guide projection 44 of the mounting vertical frame 4, the stop edge 104 is stopped at the upper end surface of the mounting vertical frame 4. Immediately before the engagement, the respective engaging portions 106 and 107 abut against the shafts of the screws B and B; B ′ and B ′ with the engaging grooves to receive the force, so that the respective engaging portions are elastically deformed away from each other. Then, when the corner cover C2 is pressed down until the stop edge 104 is stopped at the upper end surface of the mounting vertical frame 4, the concave surfaces 106a and 107a of the respective engaging portions 106 and 107 are aligned with the convex surface of the screw shaft. Therefore, the elastic surface of the engaging portion is elastically restored so that the convex surface of the shaft engages and is fixed to the concave surface of the engaging portion, and the corner cover C2 cannot move in the vertical direction or the indoor / outdoor direction (see FIG. 6 and FIG. 6). (See FIG. 7).
Thereby, the head of the screw which connects the attachment vertical frame 4 and the attachment upper frame 1 is concealed by the corner cover C2. At this time, the outdoor side projecting portion of the corner cover C2 also closes the outdoor side portion of the small edge of the mounting upper frame 1. Therefore, as shown in FIG. 1, the upper right corner portion, which is a connection portion between the mounting upper frame 1 and the mounting vertical frame 4, exhibits a beautiful appearance in which the screw head is not exposed.
[0025]
Also in the upper left corner of FIG. 1, the corner cover C2 of the upper right corner and the symmetrical corner cover C1 are mounted in the same manner, and the head of the screw that connects the mounting vertical frame 3 and the mounting upper frame 1 is similarly installed. Concealment and blocking of the outdoor side portion of the fore edge of the mounting upper frame 1 are performed.
[0026]
Further, in the corner cover C2 for the upper right corner portion of FIG. 5, the stop edge 104 is formed at the upper end portion of the concealment plate 101, whereas in the lower right corner portion of FIG. The corner cover C4 formed in the part is mounted, and the heads of screws connecting the mounting vertical frame 4 and the mounting lower frame 2 are concealed in the same manner. The outdoor side end surface of the corner cover C4 for the lower right corner is flush with the outdoor side surfaces of the mounting vertical frame 4 and the mounting lower frame 2.
[0027]
Further, a corner cover C4 for the lower right corner part and a symmetrical corner cover C3 are similarly attached to the lower left corner part of FIG. 1, and screws for connecting the attachment vertical frame 3 and the attachment lower frame 2 in the same manner. The end face of the corner cover C3 for the lower left corner is also flush with the outdoor side faces of the mounting vertical frame 3 and the mounting lower frame 2.
[0028]
In the configuration of the corner cover, the concealment plate 101 has a shape necessary for concealing the screws b1 that connect the mounting horizontal frames 1 and 2 and the mounting vertical frames 3 and 4 when mounted at a predetermined position of the corner portion. It has dimensions. Therefore, it is designed so that it can respond according to the number and position of the screws connecting the mounting vertical frame and the mounting horizontal frame.
[0029]
【The invention's effect】
As described above, according to the first aspect of the present invention, since only the guide protrusion is formed on the mounting vertical frame and the screw with the engagement groove is attached, the components added to the mounting frame are The corner cover to be mounted on the mounting frame is inexpensive and has a concealing plate for concealing the portion connected to the mounting lateral frame of the mounting vertical frame and the screw and its vicinity, and a stop formed at one end of the concealing plate Since the edge and the engaging portion formed on the inner surface of the concealing plate are provided, the corner cover can be easily attached in a snap manner, and the appearance appearance of each corner portion of the mounting frame is improved.
[0030]
According to the invention of claim 2, the screw with the engagement groove is formed on the shaft of the screw connecting the mounting vertical frame and the mounting horizontal frame, and the thickness of the engaging portion of the corner cover from the head of the screw to the shaft tip direction. Since the flanges are provided at substantially equal distances, the corner cover can be fixed with the screws connecting the mounting vertical frame and the mounting horizontal frame.
[0031]
According to the invention of claim 3, the engaging portion of the corner cover is provided at a position corresponding to each vertex of the rectangle, and the screw with the engaging groove is a screw shaft that connects the mounting vertical frame and the mounting horizontal frame. Further, a flange is provided at a position approximately equal to the thickness of the engaging portion of the corner cover in the axial direction from the head of the screw, and the engaging portion of the corner cover from the side surface of the mounting vertical frame. Because it is one or both of the normal screws screwed into the mounting vertical frame so that the head exists at a distance approximately equal to the thickness of the wall, it is possible to mount the corner cover using inexpensive parts The corner cover mounted on the mounting frame is fixed with high stability.
[0032]
According to the fourth aspect of the present invention, it is possible to provide a corner cover that can be easily mounted at a predetermined position of the mounting frame and can conceal the portion connected to the mounting horizontal frame of the mounting vertical frame by the screw and the vicinity thereof. And since the corner cover is firmly and firmly fixed by at least a pair of engaging portions and screws with engaging grooves, the screws or the like are fixed to the corner covers at the upper left and right corners so that the upper end portion such as a hook or an awning is attached. It can also be used as a support member by bonding.
[Brief description of the drawings]
FIG. 1 is a perspective view of a bay window showing an embodiment of the present invention.
FIG. 2 is a longitudinal sectional view.
FIG. 3 is a cross-sectional view of the same.
FIG. 4 is a development view of a corner cover.
FIG. 5 is an explanatory diagram of the structure of the corner cover and the operation when attached.
FIG. 6 is a cross-sectional view showing an engagement state between an engagement portion on the upper side of the corner cover and a screw with an engagement groove in a mounted state.
FIG. 7 is a cross-sectional view showing an engaged state between an engaging portion on the lower side of the corner cover and a screw with an engaging groove in a mounted state.
[Explanation of symbols]
In FIG. 1 H Building frame FF Mounting frame 1 Mounting upper frame 2 Mounting lower frame 3, 4 Mounting vertical frame 44 Guide ridge WF Sash frame C1 to C4 Corner cover In FIG. 2 WF sash frame 5 Upper frame 6 Lower frames 7, 8 Vertical frame b1 Screw for connecting the mounting horizontal frame and the mounting vertical frame b2 Screw for connecting the horizontal frame and vertical frame of the sash frame In FIG. 3 44 Guide projection C3, C4 Corner cover In FIG. 5, 1 Mounting upper frame 4 Mounting vertical frame B, B 'screw with engagement groove h head f flange g engagement groove C2 corner cover 101 concealing plate 102 guided portion 104 stop edge 106, 107 engagement portion

Claims (4)

In the mounting frame to be taken out from the building frame to the outside, and to install the sash inside,
At least two screws with engagement grooves projecting on the side of the vertical frame of the mounting frame are projected in the indoor / outdoor direction at a portion of the vertical frame of the mounting frame connected to the horizontal frame of the mounting frame by screws. And installing a guide protrusion at a position closer to the indoor side of the side of the vertical frame of the mounting frame,
A concealing plate for concealing a portion of the vertical frame of the mounting frame connected by a screw to the horizontal frame of the mounting frame and its vicinity ; a stop edge formed at one end of the concealing plate; and A corner cover having an engaging portion formed on an inner surface thereof, and is guided by the guide ridges and slid from a longitudinal end portion of a vertical frame of the mounting frame in a longitudinal central direction. The engaging portion is engaged with the engaging groove of the screw with the engaging groove by elastic deformation and restoration of the engaging portion, and at the same time, the stop edge is brought into contact with the longitudinal end portion of the vertical frame of the mounting frame. The sash mounting frame is characterized in that the corner cover is fixed at a predetermined position.   The engagement grooved screw is located at a distance from the screw shaft connecting the vertical frame and horizontal frame of the mounting frame at a distance approximately equal to the thickness of the engagement portion of the corner cover in the direction of the shaft tip from the head of the screw. The sash mounting frame according to claim 1, further comprising a flange.   The engaging portion of the corner cover is provided at a position corresponding to each vertex of the rectangle, and the screw with the engaging groove extends from the head of the screw to the shaft of the screw that connects the vertical frame and the horizontal frame of the mounting frame. A flange is provided at a position approximately equal to the thickness of the engaging portion of the corner cover in the distal direction, and is substantially equal to the thickness of the engaging portion of the corner cover from the side of the vertical frame of the mounting frame. The sash mounting frame according to claim 1, wherein the sash mounting frame is one or both of a normal screw screwed into a vertical frame of the mounting frame so that a head exists at a position separated from the distance.   A concealing plate for concealing a portion of the vertical frame of the mounting frame connected to the horizontal frame of the mounting frame by a screw and its vicinity, and a side surface of the vertical frame of the mounting frame formed at the indoor side end of the concealing plate A guided portion that is guided and slid by a guide protrusion projecting from the guide plate, and is horizontally projected from an upper side or a lower side of the concealing plate in a sash mounting opening direction of the mounting frame, and the guided portion is A stop edge that is stopped at the longitudinal end of the vertical frame of the mounting frame when being guided and slid by the guide ridges, and is projected on the vertical frame side surface of the mounting frame of the concealing plate; A corner cover having a plurality of engaging portions that engage with engaging grooves of a plurality of screws with engaging grooves protruding from the side surface of the vertical frame of the mounting frame when stopped by the stop edge.

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