JP4749264B2 - Indoor lattice mounting mechanism - Google Patents

Description

  The present invention relates to an indoor grid mounting mechanism that is attached to the indoor side of a sash window door and prevents a thief from easily entering a house even if the sash window is broken.

As shown in Patent Document 1 or 2, an indoor surface lattice that is attached to the indoor side of a louver window or the like and can prevent the thief from entering the house even if the louver window or the like is destroyed. It is known.
In the interior lattice of Patent Document 1, a large groove is engraved over the entire length of an inner lattice mounting plate having a plurality of through holes for inserting the inner lattice, and a large number of grooves are formed in the large groove. The inner grid mounting plate is fixed to the mounting frame with large countersunk screws, and the lid that covers the large number of large countersunk screws is further fixed with a large number of small countersunk screws.
This face lattice is the first time that the thief breaks the louver window, removes many small countersunk screws screwed into the cover plate, removes the cover plate, and then removes many large countersunk screws for the first time. Can be removed, and it takes time and effort for the thief to enter the house, and the thief's willingness to invade is lost. Since screws and a large number of small countersunk screws are used, there is a problem that it takes time and labor to install the indoor lattice.

Moreover, what is shown in Patent Document 2 is a surface lattice that is attached to a building opening on the indoor side with respect to a shoji of a sash window, and a base material in which an attachment piece of the lattice material is formed in a U-shaped cross-section. The base material is fixed with a fixing tool such as a screw from the concave groove side with the back surface of the base material against the building opening frame, and the cover material is fitted into the concave groove. In a state where the base material is concealed, it is fixed by a security screw screwed into the base material from the indoor side of the cover material.
However, even if the cover material for concealing the base material and the wood screw for fixing the base material is secured to the base material from the indoor side of the cover material by a security screw, the fixing position thereof can be easily made by a thief. If it is in a position where it can be found and is removed, the wood screw can be easily found in the bottom of the groove to which the base material is fixed. Therefore, there is a possibility that the wood screw can be removed and easily penetrated.

JP 2004-360345 A JP 2006-37449 A

The present invention has been made in view of such conventional problems, and its technical problem is that the installation for mounting the face grid is simple and easy, but it is not easy to remove, thereby preventing crime. It is to provide an enhanced interior grid attachment mechanism.
Another technical problem of the present invention is that, when a surface lattice formed by fixing both ends of a plurality of lattice members to a pair of lattice side frames is attached to a building opening frame, the attachment portion can be hidden, and An object of the present invention is to provide a mounting mechanism for an interior surface lattice that can easily adjust the width direction between the surface lattice and the base side frame fixed to the building opening frame.

In order to solve the above-described problems, an indoor surface lattice attachment mechanism according to the present invention is a surface lattice attachment mechanism that is attached to a building opening frame on the indoor side of a shoji, and a pair of lattice members are attached to both ends of a plurality of lattice materials. A plane lattice fixed to the side frame, and a pair of base side frames attached to the building opening frame and to which the pair of lattice side frames are attached via attachment pieces. A mounting hole for attaching to the building opening frame, and the lattice side frame encloses the base side frame and is fitted to the base side frame so as to be slidable in the longitudinal direction. Slide between the first position where the lattice side frame is finally fixed with respect to the side frame and the second position where the mounting operation hole provided in the lattice side frame faces the mounting hole of the base side frame. The mounting operation holes formed on the grid side frame are It is characterized in that through the mounting holes of the scan-side frame is obtained by allowing the operation to fix the base side frame to the building opening frame.

In a preferred embodiment of the indoor lattice mounting mechanism according to the present invention, a holding means for temporarily holding the lattice side frame at the second position is provided between the base side frame and the lattice side frame. It is done. In this case, preferably, the attachment piece is attached to the base side frame, and includes first and second screw holes in the longitudinal direction thereof, and the first screw hole is located at the first position. The second frame is used for screw fixing of the side frame, and the second screw hole and a mounting screw screwed into the second screw hole are configured as a holding unit for temporarily holding the lattice side frame at the second position.
In another preferred embodiment of the indoor grid attachment mechanism according to the present invention, the attachment piece is attached to both longitudinal ends of the base side frame, and the lattice side frame is attached to the attachment portion at the first position. An end cover that covers both ends of the base side frame and the lattice side frame in the longitudinal direction is attached to the base side frame together with the lattice side frame by attaching screws fixed to the piece.

In another preferred embodiment of the indoor grid mounting mechanism according to the present invention, the mounting operation hole in the grid side frame includes a mounting screw for mounting the base side frame to the building opening frame through the mounting hole and the mounting screw. The tool is configured to have as small an aperture as possible within a range in which a tool to be screwed can pass.
Further, in another preferred embodiment of the indoor lattice mounting mechanism according to the present invention, the base side frame is erected from a base portion extending along the building opening frame and from both side ends of the base portion. And a grid-side frame extending from the grid-material fixing wall to the outside of the stand-up wall. An outer side wall, and the grid material fixing wall and the outer wall are formed to enclose the base side frame and slidably fit in the longitudinal direction of the base side frame. A bent portion that is bent inward so as to engage with a bent portion at the tip of the standing wall of the base side frame is provided at the tip, and within the range where the two bent portions do not contact, the lattice side The distance between the frame and the base side frame is formed to be adjustable.

  In still another preferred embodiment of the indoor grid mounting mechanism according to the present invention, the movement of the grid side frame with respect to the base side frame is limited to the pair of grid side frames in the surface grid by engagement with the mounting piece. And a range of movement of the grating side frame by the stopper is configured such that the grating side frame can slide between the first position and the second position with respect to the base side frame.

  The indoor surface grid mounting mechanism having the above-mentioned structure is designed to prevent the easy removal of the surface grid while being easy and easy to install, thereby improving security. When attaching the surface lattice, the lattice side frame of the surface lattice is held in the second position where the attachment operation hole provided on the lattice faces the attachment hole of the base side frame. The base side frame is screwed to the building opening frame at its mounting hole, and then moved to the first position where the lattice side frame is finally fixed to the base side frame. Thus, it is possible to hide the mounting portion of the base side frame at the final mounting position while the mounting of the face grid is simple.

The mounting holes in the grid side frame are finally exposed to the outside, but even if a tool such as a screwdriver is inserted through the holes, the mounting screws and the like in the mounting holes in the base side frame are removed. Since it is not easy to search for the mounting screw, it is possible to improve crime prevention.
In addition, since the pair of lattice side frames of the surface lattice are screwed to the pair of base side frames via attachment portions so that the distance between the pair of lattice side frames can be adjusted, the surface lattice and the opening of the building are attached during attachment. Adjustment in the width direction between the frame and the frame can be easily performed, and construction is easy.

  According to the indoor grid mounting mechanism of the present invention described above, the installation for mounting the grid is simple and easy, but it is not easy to remove, thereby improving security. When attaching a surface lattice in which both ends of the lattice material are fixed to a pair of lattice side frames to the building opening frame, the mounting portion can be hidden, and the base side frame is fixed to the surface lattice and the building opening frame. The adjustment in the width direction between the two can be easily performed.

DESCRIPTION OF EMBODIMENTS Embodiments of an indoor lattice mounting mechanism according to the present invention will be described below in detail based on examples shown in the drawings.
1-5 has shown the structure of one Example of the attachment mechanism of the indoor lattice concerning this invention. As shown in FIGS. 3 and 4, the attachment mechanism is a mechanism for attaching the surface lattice 4 to the building opening frame 3 on the indoor side of the shoji 2 attached to the sash window frame 1. It is attached along the left and right inner surfaces of the building opening frame 3 and the plane lattice 4 in which the materials 11 are arranged side by side and fixed at both ends to the pair of lattice side frames 12, and the pair of lattice side frames 12 are attached. A pair of base side frames 6, an attachment piece 8 for attaching the lattice side frame 12 to the base side frame 6, and an end cover that covers both longitudinal ends of the base side frame 6 and the lattice side frame 12. 9 as a main component.

  More specifically, the sash window frame 1 is a general-purpose one, and the shoji 2 attached to the sash window frame 1 is, for example, a vertical shovel, a lateral shovel, or a louver when opened. This type of shoji is of a type that can be opened parallel to the sash window surface or outward from the sash window surface, and is attached to the sash window frame 1 by known means.

  The lattice material 11 constituting the surface lattice 4 is a hollow cylindrical metal material as shown in FIGS. 1 to 3, and a cross-section extending over the entire length at a position opposed to the inner peripheral wall thereof is a pair of notched rings. A pair of lattice-side frames 12 having screw attachment portions 11a and juxtaposing a plurality of the lattice members 11 and fixing the both ends thereof, respectively, at positions corresponding to the screw attachment portions 11a of the lattice members 11 respectively. The mounting holes 13 are provided, the mounting screws 15 are screwed into the screw mounting portions 11 a through the seat plate 14 that contacts the outer surface of the mounting holes 13 and the mounting holes 13. Are fixed between the pair of lattice-side frames 12 at regular intervals, and the surface lattice 4 is configured. The seat plate 14 is partially bent to form a stopper 14a described later.

  On the other hand, the base side frame 6 fixed to the building opening frame 3 is made of a metal mold material, and is fixed to the inner surface of the vertical frame of the building opening frame 3 as shown in FIGS. The base part 6a extending along the building opening frame 3, the pair of upright walls 6b erected vertically from both side ends of the base part 6a, and the base part 6a inside the upright wall 6b And a pair of upright walls 6c that are vertically arranged from above, and these upright walls 6b and 6c extend along the longitudinal direction of the base portion 6a. A bent portion 6d bent outward is attached to each end of the pair of standing walls 6b.

  Further, the base portion 6a of the base side frame 6 is provided with a mounting hole 18 for mounting it on the building opening frame 3, and a mounting screw 19 is screwed into the building opening frame 3 through the mounting hole 18. Thus, the base side frame 6 is attached to the building opening frame 3. An ordinary screw may be used as the mounting screw 19, but a special security screw (for example, a screw that can be rotated in the direction of tightening the screw by a screwdriver but cannot be rotated in the direction of loosening, or a special screw) Screws that cannot be tightened or loosened without a screwdriver may also be used.

  As clearly shown in FIG. 5, the lattice side frame 12 of the surface lattice 4 attached to the base side frame 6 is opposed to the base portion 6 a of the base side frame 6, and the lattice material 11 is fixed with attachment screws 15. A grid material fixing wall 12a, and a pair of outer walls 12b extending in parallel with the standing wall 6b on each outer side of the pair of standing walls 6b from both ends of the fixing wall 12a toward the base frame 6 side. And a pair of inner side walls 12c extending from the fixed wall 12a along the outside of the pair of standing walls 6c. The grid material fixing wall 12a and the outer wall 12b enclose the base side frame 6. The lattice side frame 12 having the outer side wall 12b and the inner side wall 12c is disposed at a position where the pair of inner side walls 12c are substantially in contact with the outside of the pair of standing walls 6c in the base side frame. Has standing walls 6b and 6c. And thereby slidably fitted in the longitudinal direction with respect to the over scan side frame 6.

Furthermore, a bent portion 12d bent inward so as to engage with a bent portion 6d at the tip of the standing wall 6b of the base side frame 6 is provided at the tip of the outer wall 12b of the lattice side frame 12. The distance between the lattice side frame 12 and the base side frame 6 can be adjusted within a range in which the bent portion 12d is not in contact with the bent portion 6d. By adjusting the distance, the width of the surface lattice 4 can be adjusted when the surface lattice 4 is attached to the building opening frame 3.
Note that the lattice side frame 12 is limited from being separated from the base side frame 6 by the engagement between the bent portion 6d and the bent portion 12d.

Since the lattice side frame 12 is connected to the base side frame 6 in the above-described connection relationship, for example, if the base side frame 6 is fixed to the building opening frame 3 in advance, there is no space above and below it. Therefore, the lattice side frame 12 cannot be inserted from above or below the base side frame 6, and the lattice side frame 12 cannot be assembled to the base side frame 6. Therefore, when the surface lattice 4 is attached to the inner side surface of the building opening frame 3, it is necessary to attach the base side frame 6 and the lattice side frame 12 after fitting them in advance. However, in that state, since the base side frame 6 is encapsulated by the lattice side frame 12, only the base side frame 6 cannot be fixed to the building opening frame 3, and this can be done. Since the thief can easily remove the base side frame 6 from the building opening frame 3, there is a problem in terms of crime prevention.
Therefore, in this mounting mechanism, as will be described below, when mounting the face grid 4 to the building opening frame 3, the mounting portion, in particular, the mounting portion by the mounting screw 19 of the base side frame 6 can be hidden. ing.

  First, as described above, the lattice side frame 12 has a form in which the base side frame 6 is encapsulated and slidably fitted to the base side frame 6 in the longitudinal direction. The sliding range includes a first position (FIG. 1) at which the lattice side frame 12 is finally fixed to at least the base side frame 6 according to the mounting process of the surface lattice 4 described below, The mounting operation hole 20 provided in the lattice side frame 12 is formed to be slidable between a second position (FIG. 6) facing the mounting hole 18 of the base side frame 6.

  FIG. 1 shows a state in which the lattice side frame 12 in the surface lattice 4 is fixed to the base side frame 6 at a final attachment position with respect to the base side frame 6, whereas FIG. 6 shows the lattice side frame 12. 1 is slightly shifted from the state of FIG. 1 in the longitudinal direction of the base side frame 6, specifically, the mounting operation hole 20 provided in the lattice side frame 12 faces the mounting hole 18 of the base side frame 6. A state in two positions is shown. In this state, a tool such as a screwdriver can be inserted through the mounting operation hole 20, and the base side frame 6 can be fixed to the building opening frame 3 with the mounting screw 19 screwed through the mounting hole 18 provided therein. .

6 is fixed to the building opening frame 3 in the state shown in FIG. 6, and the grid side frame 12 is slid to the position shown in FIG. 12 is fixed to the base side frame 6.
The attachment operation hole 20 is closed with a plug 20a after the lattice side frame 12 is finally attached to the base side frame 6.
Then, in order to fix the lattice side frame 12 of the surface lattice 4 to the final attachment position shown in FIG. 1 or temporarily fix the lattice side frame 12 to the fixing work position of the base side frame 6 shown in FIG. The attachment piece 8 is attached to the base side frame 6.

  The attachment piece 8 is screwed to both ends of the base side frame 6 and includes two projecting portions 8a and 8b formed at intervals in the longitudinal direction thereof, and the first and second screw holes 21 are provided in them. , 22 are provided at a center interval d. The distance d corresponds to a distance shifted from the mounting position in FIG. 6 where the lattice side frame 12 is temporarily fixed to the base side frame 6, and specifically, the mounting hole 18 of the mounting screw 19 in FIG. 1. Is set to be the same as the distance D between the central axis of the mounting operation hole 20 and the central axis of the mounting operation hole 20.

The first screw holes 21 located on the end side of the base side frame 6 in the attachment piece 8 are the final attachment positions of the lattice side frame 12, that is, the lattice side frame in the first position shown in FIG. 12 is fixed to the base side frame 6 with a mounting screw 23, and the other screw hole 22 and the mounting screw 23 to be screwed into the second side are shown in FIG. The holding means for temporarily holding in (temporary fixing position) is formed. Mounting holes 25 are provided at both ends of the lattice side frame 12 for attaching the lattice side frame 12 to the attachment piece 8, and the attachment screws 23 for screwing the lattice side frame 12 into the attachment piece 8 therethrough are both screws. Commonly used for screwing into the holes 21 and 22. The mounting piece 8 adjusts the distance between the base side frame 6 and the lattice side frame 12 by adjusting the screwing depth of the mounting screw 23 screwed into the screw hole 21 or 22. The
The means for holding the lattice side frame 12 in the second position is not limited to the one using the screw holes 22 provided in the attachment piece 8, and other arbitrary means can be used instead.

The stopper 14 a described above is provided on the seat plate 14 that abuts on the outer surface side of the lattice side frame 12 when the lattice material 11 constituting the surface lattice 4 and the lattice side frame 12 are connected by the mounting screws 15. However, as can be seen from FIGS. 1 and 6, the stopper 14 a comes into contact with the inner protruding portion 8 b of the mounting piece 8 when the lattice side frame 12 slides with respect to the base side frame 6. They are arranged in a positional relationship.
Therefore, when the attachment piece 8 is attached to both ends of the base side frame 6 with the lattice side frame 12 fitted to the base side frame 6, the stopper 14a is moved to the attachment piece 8 by moving the lattice side frame 12. It is limited within the range of contact.

In the case of the illustrated embodiment, the positions at which the stoppers 14a located above and below the lattice side frame 12 abut against the attachment piece 8 at the end of the base side frame 6 are the first position and the second position, respectively. However, it is sufficient that the lattice side frame 12 is movable at least between the first position and the second position, and it is not always necessary to make such a setting.
Further, the seat plate 14 having the stoppers 14a may be used only in the attachment portions of the lattice members 11 at the upper and lower ends of the surface lattice 4, but may be used in the attachment portions of the lattice members 11.

As described above, the lattice-side frame 12 is fixed to the attachment portion pieces 8 attached to both ends in the longitudinal direction of the base-side frame 6 at the first position by the attachment screws 23. End covers 9 that cover both ends of the base side frame 6 and the grid side frame 12 in the longitudinal direction are attached to the base side frame 6 together with the grid side frame 12.
The end cover 9 is provided with a space 9a in which the end portions in the longitudinal direction of the base side frame 6 and the lattice side frame 12 are housed, and is formed in a form that protects these end portions. However, it also has a meaning of camouflaging a fixed portion of the lattice side frame 12 with respect to the base side frame 6.

Next, with reference to FIGS. 6-10, the attachment procedure which attaches the said surface lattice 4 to the building opening part frame 3 is demonstrated.
First, as shown in FIG. 6, the surface lattice 4 is assembled in advance by fixing both ends of the plurality of lattice members 11 to the pair of lattice side frames 12 with the mounting screws 15. Then, in a state where the pair of base side frames 6 and the lattice side frames 12 of the surface lattice 4 are fitted, the attachment part pieces 8 are attached to both ends in the longitudinal direction of the base side frame 6 with bolts and nuts.
In this state, the lattice side frame 12 slides with respect to the base side frame 6, but the stopper 14 a of the seat plate 14 used when connecting the lattice material 11 and the lattice side frame 12 is located on the inner side of the attachment piece 8. Since it contacts the protruding portion 8b, the movement of the lattice side frame 12 with respect to the base side frame 6 is limited by the contact.

Next, the base side frame 6 to which the surface lattice 4 is attached is arranged at a predetermined position in the building opening frame 3, and the lattice side frame 12 of the surface lattice 4 is arranged with respect to the base side frame 6 in FIGS. The attachment screw 23 is screwed into the screw hole 22 of the attachment piece 8 attached to the lower end of the base side frame 6 through the attachment holes 25 of the pair of lattice side frames 12. The lattice side frame 12 is temporarily fixed to the second position with respect to the pair of base side frames 6.
In this embodiment, the second position is moved upward with respect to the lattice side frame 12 with respect to the pair of base side frames 6, and the mounting screws are inserted into the screw holes 22 of the attachment piece 8 at the lower end of the base side frame 6. Since the lower screw hole 22 in the upper mounting piece 8 is a dummy, the second position is changed to a pair of base sides by changing the setting of the position of the stopper 14a. The lattice side frame 12 can be moved downward with respect to the frame 6, and the screw hole 22 of the attachment piece 8 attached to the upper end of the base side frame 6 can be used for temporary fixing with the attachment screw 23. The upper screw hole 22 in the lower attachment piece 8 is a dummy.

  In the state where the pair of grid side frames 12 are temporarily fixed to the pair of base side frames 6, the center of the mounting hole 18 of the base side frame 6 and the mounting operation hole 20 of the grid side frame 12 is as shown in FIG. Accordingly, the mounting screw 19 can be screwed into the building opening frame 3 through the mounting hole 18 by using the mounting operation hole 20, whereby the pair of base side frames 6 can be connected to the building opening. It can be attached to the frame 3.

  After the mounting of the base side frame 6 is finished, the mounting screws 23 screwed into the screw holes 22 in the lower mounting piece 8 are removed, the temporarily fixed state of the surface lattice 4 to the base side frame 6 is released, and the surface The grating 4 is moved to the first position shown in FIGS. As a result, the center of the upper and lower mounting holes 25 of the lattice side frame 12 coincides with the center of the screw hole 21 of the mounting part piece 8. This position is a position where the lattice side frame 12 is finally attached to the base side frame 6, and both end positions in the longitudinal direction of the base side frame 6 and the lattice side frame 12 coincide. Therefore, as shown in FIGS. 9 and 10, the end cover 9 is put on both ends of the base side frame 6 and the grid side frame 12 in the longitudinal direction, and mounting screws 23 are attached to the holes of the end cover 9 and the grid side. The end cover 9 is attached to both ends of the lattice side frame 12 by screwing into the screw holes 21 of the attachment piece 8 through the attachment holes 25 of the frame 12, and the surface lattice 4 is attached as shown in FIGS. To complete.

As described above, the indoor surface lattice mounting mechanism having the above-described structure is configured such that the surface lattice 4 in which both ends of the plurality of lattice members 11 are fixed to the pair of lattice side frames 12 is connected to the building opening via the base side frame 6. Although it can be easily and easily attached to the frame 3, it cannot be easily removed from the outside, thereby improving security.
That is, when the surface grid 4 is mounted, the grid side frame 12 of the surface grid 4 is held in the second position where the mounting operation hole 20 provided on the surface grid 4 faces the mounting hole 18 of the base side frame 6. The base side frame 6 is screwed to the building opening frame 3 at the mounting hole 18 through the mounting operation hole 20, and then the lattice side frame 12 is finally fixed to the base side frame 6. Since it is fixed to the base side frame 6 after being moved to the first position, the mounting portion of the base side frame 6 is concealed at the final mounting position while the surface grid 4 is easily mounted. It is something that can be done.

Although the mounting operation holes 20 in the lattice side frame 12 are finally exposed to the outside, the mounting in the mounting holes 18 in the base side frame 6 is possible even when a tool such as a screwdriver is inserted through the holes. Since the screws 19 and the like cannot be removed and it is not easy to search for the mounting screws 19, crime prevention can be improved.
In addition, since the pair of lattice side frames 12 of the surface lattice 4 are screwed to the pair of base side frames 6 via attachment portions 8 so that the distance between the pair of lattice side frames 6 can be adjusted. Adjustment of the width direction of 4 and the building opening part frame 3 can be performed easily, and construction is also easy.

It is a partially broken front view which shows one Example of the attachment mechanism of the indoor surface grid which concerns on this invention. It is the longitudinal cross-sectional view. It is a longitudinal cross-sectional view which shows the state attached to the sash window. FIG. It is a partially expanded sectional view of FIG. It is a partially broken front view which shows the attachment procedure. It is a perspective view which shows the 1st step of the attachment procedure. It is a perspective view which shows the 2nd step. It is a perspective view which shows the 3rd step. It is a perspective view which shows the 4th step (attachment completion state).

Explanation of symbols

2 shoji 3 building opening frame 4 plane lattice 6 base side frame 6a platform 6b, 6c standing wall 6d bent portion 8 attachment piece 9 end cover 11 lattice material 12 lattice side frame 12a lattice material fixing wall 12b outer side wall 12d Bending portion 14a Stopper 18 Mounting hole 19 Mounting screw 20 Mounting operation hole 21 First screw hole 22 Second screw hole 23 Mounting screw

Claims (7)

A mounting mechanism for a face grid that is attached to the building opening frame on the indoor side of the shoji,
A surface lattice in which both ends of a plurality of lattice members are fixed to a pair of lattice side frames, and a pair of base side frames that are attached to a building opening frame and to which the pair of lattice side frames are attached via attachment pieces. Prepared,
The base side frame has a mounting hole for attaching it to the building opening frame,
The lattice side frame encloses the base side frame and is fitted to the base side frame so as to be slidable in the longitudinal direction, and at least the lattice side frame is finally fixed to the base side frame. And a mounting operation hole provided in the lattice side frame is formed to be slidable between a second position facing the mounting hole of the base side frame,
The mounting operation hole provided in the lattice side frame enables the operation of fixing the base side frame to the building opening frame through the mounting hole of the base side frame.
An installation mechanism for an interior grid. A holding means for temporarily holding the lattice side frame at the second position is provided between the base side frame and the lattice side frame.
The mounting mechanism for an interior grid according to claim 1. The attachment piece is attached to the base side frame, and has first and second screw holes in its longitudinal direction, and the first screw hole is used for screw fixing of the lattice side frame at the first position. The second screw hole and the mounting screw screwed into the second screw hole are used as holding means for temporarily holding the lattice side frame in the second position.
The interior grid attachment mechanism according to claim 2, wherein: The attachment piece is attached to both ends in the longitudinal direction of the base side frame,
At the first position, an end cover that covers both the base side frame and both ends of the lattice side frame in the longitudinal direction is attached to the base side frame together with the lattice side frame by mounting screws that fix the lattice side frame to the attachment piece. ing,
The interior grid attachment mechanism according to claim 2 or 3, wherein The mounting operation hole in the lattice side frame has a diameter as small as possible within a range in which a mounting screw for mounting the base side frame to the building opening frame through the mounting hole and a tool for screwing the mounting screw can pass. ing,
The mounting mechanism for an interior grid according to any one of claims 1 to 4. The base side frame has a base part extending along the building opening part frame, and a standing wall extending in the longitudinal direction from the both side ends of the base part,
The lattice side frame has a lattice material fixing wall facing the base portion of the base side frame, and an outer wall extending from the lattice material fixing wall to the outside of the standing wall,
The lattice material fixing wall and the outer wall are formed so as to enclose the base side frame and slidably fit in the longitudinal direction thereof,
At the tip of the outer wall of the lattice side frame, a bent portion bent inward so as to engage with the bent portion at the tip of the standing wall of the base side frame is provided, and both the bent portions are Within the non-contact range, the interval between the lattice side frame and the base side frame is adjustable.
The mounting mechanism for an interior surface grid according to any one of claims 1 to 5. A pair of lattice side frames in the surface lattice is provided with a stopper that restricts the movement of the lattice side frame with respect to the base side frame by engaging with the attachment piece.
The range of movement of the lattice side frame by the stopper is such that the lattice side frame can slide between the first position and the second position with respect to the base side frame.
The interior grid attachment mechanism according to any one of claims 1 to 6.

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