JP2011153493A - Interior window - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an interior window which minimizes the number of components, firmly fixes a corner member, and permits thermal elongation of the cover member. <P>SOLUTION: A depth compensation frame 11 of the interior window 1 includes upper and lower horizontal base frames 17 and 19, right and left vertical base frames 21, cover members 23a, 23b and 23c which are attached to the base frames 17, 19 and 21 so as to cover the indoor-side surface of the base frame and the outer periphery-side depth surface thereof, respectively, and the corner member 25 for concealing ends of the cover members 23a, 23b and 23c from an indoor side. The corner member 25 has an engaging protrusion 49 provided on the lateral surface of the cover member; engaging holes 47 for being engaged with the engaging protrusion 49 of the corner member are formed at both ends of at least either of upper and lower horizontal cover members 23a and 23b and right and left vertical cover members 23c, respectively; a dimension S1, in the longitudinal direction of the cover member, of the engaging hole 47 is set longer than a dimension S2, in the longitudinal direction of the cover member, of the engaging protrusion 49; and the cover members 23a and 23b and the corner member 25 can move relatively to each other. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to an inner window attached to the indoor side of an existing outer window.

In existing windows, it is known to easily improve heat insulation by newly providing an inner window on the indoor side of an existing outer window to form a double sash.
As such an inner window, Patent Document 1 discloses a base frame in which upper and lower horizontal base frames and left and right eaves base frames are connected by a connecting member, and the vertical and horizontal dimensions can be adjusted by the connecting member. After fixing each base frame to the decorative frame by inserting it into the window opening, attach the cover member to each base frame, fit the corner member to the connecting member provided at each corner, and butt end of the cover member It is disclosed that the corner member is hidden.
However, since the base frame of Patent Document 1 is fixed by inserting the base frame into the window opening after the base frame is adjustable by the connecting member, the base frame is unstable and easily deformed. There is a problem that it is inferior. In particular, in the case of a large puff frame, if one person works on the left and right sides of the puff frame and tries to insert it into the window opening, it may be disassembled. Therefore, it was difficult to work alone.
Further, since the corner member is configured to be fitted to the connecting member, a fitting structure with the connecting member is required, and there is a problem that the configuration of the connecting member and the corner member is complicated.
On the other hand, in the technique of Patent Document 2, after fixing each of the upper, lower, left, and right base frames to the window opening, a cover member is attached to each base frame, and a corner member is attached to each corner, thereby matching each cover member. It is disclosed that the end is hidden by a corner member.

JP 2007-297831 A JP 2008-31669 A

However, in the technique of Patent Document 2, there is no specific disclosure about the attachment of the corner member. For example, when the corner member is merely fitted to the butt end of the cover member, the corner member is caught when the finger is caught on the corner member. May fall off.
On the other hand, since the cover member may be extended by heat in the room, a configuration that can allow the cover member to be thermally extended with respect to the corner member is required.

  Therefore, an object of the present invention is to provide an inner window that can reduce the number of parts, firmly fix a corner member, and allow thermal expansion of a cover member.

  The invention according to claim 1 comprises a cover frame attached to the indoor side of the window opening, a window frame fixed to the inner periphery of the cover frame, and a shoji disposed on the inner periphery of the window frame, Upper and lower horizontal base frames, left and right vertical base frames, cover members that are attached to the base frames to cover the indoor side surface and the outer peripheral side of the base frame, and provided at each corner of the horizontal base frame and vertical base frame A corner member that conceals the end of the cover member from the indoor side, and the corner member is provided with an engaging protrusion on the side of the cover member, and at least one of the upper and lower horizontal cover members and the left and right saddle cover members The cover member has an engagement hole that engages with the engagement protrusion of the corner member at both ends, and the dimension of the engagement hole in the longitudinal direction of the cover member is larger than the dimension of the engagement protrusion in the longitudinal direction of the cover member. The cover member and the corner member are relatively moved. Possible, characterized in that a.

  According to a second aspect of the present invention, in the first aspect of the present invention, the engagement hole of the cover member is provided in the finding surface and the prospective surface of the cover member, and the engagement protrusion of the corner member is the engagement of the cover member. It is characterized by being provided at each position facing the joint hole.

  The invention according to claim 3 is the invention according to claim 1 or 2, wherein the lower horizontal cover member is longer than the lower horizontal base frame, and the lower end of the eaves cover member is placed on the end of the lower horizontal cover member. It is characterized by being placed.

According to the invention described in claim 1, since the connecting member for connecting the base frames to each other as in Patent Document 1 is not provided in the cover frame, the number of parts can be reduced.
Since the corner member is engaged with the engagement hole of the cover member by the engagement protrusion, the corner member can be firmly fixed because it does not easily fall off due to finger catching or the like.
The engagement hole formed in the cover member has a longer dimension in the cover member longitudinal direction than a dimension in the cover member longitudinal direction of the engagement protrusion, so that the thermal expansion of the cover member with respect to the corner member can be allowed.
Since the corner member is attached by engaging the engagement protrusion provided on the corner member with the engagement hole formed in the cover member, the corner member can be easily attached to the cover member by pushing in from the indoor side.

  According to the second aspect of the present invention, the same effect as that of the first aspect of the invention can be obtained, and the corner member is engaged with the cover member at two positions of the cover member finding surface and the prospective surface. Therefore, even when the expected size of the cover member is large, the corner member can be firmly fixed to the cover member.

  According to the invention described in claim 3, since the same effect as that of the invention described in claim 1 or 2 can be obtained, the lower end of the eaves cover member is placed on the end of the lower horizontal cover. Since the corner member does not require a part or part for defining the lower limit position of the saddle cover member, the corner member can be simply configured and the corner member can be designed with a high degree of freedom.

It is the front view which looked at the cover frame of the inner window which concerns on 1st Embodiment from the indoor side with a part notched. It is a longitudinal cross-sectional view of a window provided with the inner window which concerns on 1st Embodiment. It is a cross-sectional view of a window provided with the inner window which concerns on 1st Embodiment. It is a disassembled perspective view of the inner window which concerns on 1st Embodiment. It is a longitudinal section which shows the lower part of the inner window which concerns on 1st Embodiment, and its surrounding part. It is a figure of the upper right corner member used for the inner window concerning a 1st embodiment, (a) is a front view seen from the room side, (b) is a left view, (c) is a right view. (D) is a plan view seen from below, (e) is a front view showing a state where it is attached to the upper side cover member and the eaves cover member, and (f) is an A-shown in (e). It is A sectional drawing. It is a figure of a side cover member, (a) is sectional drawing, (b) is the front view seen from the room inner side, (c) is the top view seen from the bottom. It is a longitudinal cross-sectional view of a window provided with the inner window which concerns on 2nd Embodiment. It is a transverse cross section of a window provided with an inner window concerning a 2nd embodiment. It is a disassembled perspective view of the inner window which concerns on 2nd Embodiment. It is a figure of the upper right corner member used for the inner window which concerns on 2nd Embodiment, (a) is the front view seen from the room inner side, (b) is a left view, (c) is a right view. Yes, (d) is a plan view seen from below, (e) is a front view showing the state of attachment to the upper horizontal cover member and the eaves cover member, and (f) is a BB shown in (e). It is sectional drawing. It is the front view which looked at the cover frame of the inner window which concerns on 3rd Embodiment from the indoor side, notching a part.

Embodiments of the present invention will be described below. First, the first embodiment of the present invention will be described in detail with reference to FIGS. As shown in FIG.2 and FIG.3, the window 3 provided with the inner window 1 which concerns on 1st Embodiment newly installs the inner window 1 in the indoor side of the existing outer window 5 provided in the outdoor side. The inner window 1 is attached to the interior side of the decorative frame 9 provided in the window opening 7.
The inner window 1 includes a cover frame 11 attached to the interior side of the decorative frame 9, a window frame 13 fixed to the inner periphery of the cover frame 11, and a shoji 15 disposed on the inner periphery of the window frame 13. The shoji 15 according to the present embodiment is a sliding shoji.
As shown in FIGS. 2 to 4, the upper frame 11 includes an upper horizontal base frame 17, a lower horizontal base frame 19, left and right heel base frames 21, a lower horizontal cover member 23 a attached to the lower horizontal base frame 19, An upper horizontal cover member 23b to be attached to the upper horizontal base frame 17, a heel cover member 23c to be attached to the heel base frame 21, and a corner member 25 provided at each corner portion of the horizontal base frames 17 and 19 and the heel base frame 21 are provided. Yes.

Each of the base frames 17, 19, and 21 is made of aluminum and has the same shape in cross section. As shown in FIG. 5, a hollow main body 27 and an outdoor piece 29 protruding from the main body 27 to the outdoor side. And. The outdoor piece 29 extends to the outdoor side from a stepped portion 29a that protrudes on the inner peripheral side of the inner peripheral side surface 27a of the main body 27, and the stepped portion 29a is used when the window frame 13 is attached to the main body 27. The window frame 13 is positioned in contact with the outdoor end of the window frame 13.
The outdoor piece 29 is screwed to the inner peripheral side surface of the decorative frame 9 with a screw 28 that stops from the inner peripheral side, and the main body 27 has a screw insertion hole 31 formed on the inner side surface, and is inserted from the indoor side. The head of the screw is locked and fixed to the partition wall 30 of the hollow portion by the screw 33.
The main body 27 has a concave outdoor locking portion 35 formed outside the outer peripheral surface, and a concave indoor locking portion 37 formed inside the inner peripheral surface.

As shown in FIGS. 4 and 5, each cover member 23 a, 23 b, 23 c is a shape made of a resin material, has a substantially L-shaped material cross section, is attached to each base frame 17, 19, 21, The base frame 17, 19, 21 covers the indoor side surface 18 and the outer peripheral side prospective surface 20. As shown in FIG. 5, the cover members 23 a, 23 b, and 23 c are formed with outdoor locked portions 39 that lock to the outdoor lock portions 35 of the base frames 17, 19, and 21 on the outdoor side, On the indoor side, an indoor-side locked portion 41 that is locked to the indoor-side locking portion 35 of the base frames 17, 19, and 21 and a window frame position restricting projection 43 are formed. The window frame position restricting protrusion 43 protrudes toward the inner peripheral side of the cover frame 11 and restricts the indoor side end of the window frame 13.
As shown in FIG. 1, the upper and lower horizontal cover members 23a and 23b are formed longer than the upper and lower horizontal base frames 17 and 19, respectively, and both ends 14 of the horizontal cover members 23a and 23b are connected to the horizontal base frame 17, It protrudes from 19 ends 17a and 19a.
As shown in FIGS. 1 and 4, the upper and lower horizontal cover members 23a, 23b have portions (protrusions) 45 protruding from the ends 17a, 19a of the horizontal base frames 17, 19, respectively. (See (b)), two first engagement holes 47 are formed in parallel. Each first engagement hole 47 engages with a first engagement protrusion (described later) 49 provided in the corner member 25. As shown in FIG. 6E, the cover member longitudinal dimension S1 of each first engagement hole 47 is longer than the cover member longitudinal dimension S2 of the engagement protrusion 49. Further, as shown in FIG. 6B, the width W of the base portion 50 of the first engagement protrusion 49 is the width M of the first engagement hole 47 into which the base portion 50 of the first engagement protrusion 49 is inserted (see FIG. 6B). 6 (e)).
As shown in FIG. 1, the lower end of the eaves cover member 23 c is placed on the end of the lower horizontal cover member 23 a, and between the end of the upper horizontal cover member 23 b and the upper end of the eaves cover member 23 c A gap K is formed.
As shown in FIG. 7, the projection 45 of the horizontal cover members 23a and 23b has a second engagement hole 51 formed on the prospective surface thereof, and as shown in FIG. Is engaged with a second engagement protrusion 53 (described later) provided on the corner member 25. Similarly to the first engagement hole 47, the second engagement hole 51 has a dimension T1 in the longitudinal direction of the cover member in each second engagement hole 51 (see FIG. 7C). It is longer than the dimension T2 in the direction (see FIG. 6D).
As shown in FIGS. 1 and 4, neither the first engagement hole 47 nor the second engagement hole 51 is formed in the collar cover member 23 c.

As shown in FIGS. 1 and 4, the corner member 25 is provided at each corner portion of the horizontal base frames 17 and 19 and the eaves base frame 21, and has a finding surface 55, a vertical prospective surface 57, and a horizontal prospective surface. 59, the vertical prospective surface 57 faces the end of the lateral cover member 23a (or 23b), and the horizontal prospective surface 59 faces the end of the eaves cover member 23c.
As shown in FIG. 6, the corner member 25 has two first engagement protrusions 49 protruding from the outdoor side of the finding surface 55 side by side toward the outdoor side. A claw portion 61 whose tip N is wider than the width M of the first engagement hole (see FIG. 6E) is provided, and the claw portion 61 is a set of divided claw portions. 61a and 61b are arranged so as to be opposed to each other, and the divided claw portions 61a and 61b can be elastically deformed toward the sides facing each other. The first engaging protrusion 49 is elastically deformed so as to narrow the width of each claw portion 61 and is inserted into the first engaging hole 47, and then elastically returns to reduce the width of the claw portion 61 to the width of the first engaging hole 47. It is wider than M (see FIGS. 6 (e) and 7 (b))) and is engaged with the edge of the first engagement hole 47.
As shown in FIG. 6 (b), in the corner member 25, a second engagement protrusion 53 protruding toward the inner periphery is provided on the inner surface of the horizontal prospective surface 59. The second engaging protrusion 53 has a substantially L-shaped cross section with a standing portion 53a and an extending portion 53b extending from the tip of the standing portion 53a toward the outdoor side. 59 is formed with a groove 53c that opens toward the outdoor side. As shown in FIGS. 4 and 6 (f), after the second engagement protrusion 53 is inserted into the second engagement hole 51 of the lateral cover member 23a, when the corner member 25 is pressed toward the outdoor side, The edge of the second engaging hole 51 of the cover member is positioned while the edge of the second engaging hole 51 of the cover member is positioned while the edge of the second engaging hole 51 enters the groove 53 and comes into contact with the standing part 53a. The second engaging protrusion 53 and the second engaging hole 51 are engaged with each other by being inserted into the inner wall 53.
The corner member 25 is provided with a hollow portion 63.

Next, construction and operational effects of the inner window 1 according to the present embodiment will be described. As shown in FIG. 4, the inner window 1 is constructed by individually placing the upper horizontal base frame 17, the lower horizontal base frame 19, and the left and right heel base frames 21 on the decorative frame 9 of the window 3 and fixing them with screws. . As shown in FIG. 5, the screws of the base frames 17, 19, 21 are fixed by inserting screws 33 into the insertion holes 31 formed in the indoor-side finding surface of the main body 27 of the base frames 17, 19, 21. Then, the screw 33 is screwed into the decorative frame 9 and the head of the screw is locked to the partition wall 30 in the hollow portion. Then, the outdoor piece 29 protruding from the main body 27 to the outdoor side is fixed to the inner peripheral side prospective surface of the decorative frame 9 with a screw 28.
Next, as shown in FIG. 4, the upper horizontal cover member 23 b is attached to the upper horizontal base frame 17, and the lower horizontal cover member 23 a is attached to the lower horizontal base frame 19. As shown in FIG. 5, the lower horizontal cover member 23a is attached after the outdoor locked portion 39 of the lower horizontal cover member 23a is locked to the outdoor lock portion 35 of the horizontal base main body 27, and then the outdoor side. By pushing up the lower horizontal cover member 23a so as to rotate upward about the locked portion 39, the indoor side locked portion 41 of the lower horizontal cover member 23a is engaged with the indoor side engagement of the horizontal base main body portion 27. The lower lateral cover member 23 a is fitted into the lower lateral base frame 17 by being locked to the stop portion 37 with a click feeling. When the lower horizontal cover member 23 a is attached to the lower horizontal base frame 19, the outdoor locked portion 39 of the lower horizontal cover member 23 a is connected to the outdoor locking portion 35 from the longitudinal direction end of the lower horizontal base frame 19. The indoor side locked portion 41 may be locked to the inner locking portion 37, and the lower horizontal cover member 23 a may be inserted and attached to the lower horizontal base frame 19.
In this state, as shown in FIG. 1, the protruding portions 45 are arranged so as to protrude from the ends 14 of the lower horizontal base frame 19 at both ends of the lower horizontal cover member 23 a. The upper horizontal cover member 23b is also attached to the upper horizontal base frame 17 in the same manner as the lower horizontal cover member 23a. The upper horizontal cover member 23b and the lower horizontal cover member 23a are slidable in the longitudinal direction, and the positions in the longitudinal direction are adjusted as necessary.
Next, the eaves cover member 23c is attached to each of the left and right eaves base frames 21, and the eaves cover member 23c is attached to the eaves base frame 21 in the same manner as the upper and lower horizontal cover members 23a and 23b. Is placed on the end portion (projecting portion) 45 of the lower horizontal cover member 23a.
Thereafter, the corner member 25 is attached to each corner portion of each side cover member 23a, 23b and the heel cover member 23c. As shown in FIG. 4 or FIG. 6, the corner member 25 is attached by inserting the second engagement protrusion 53 into the second engagement hole 51 of the lateral cover members 23a and 23b and directing the corner member 25 to the outdoor side. When pressed, the edge portion of the second engagement hole 51 is inserted into the groove portion 53c (see FIG. 6B) of the second engagement protrusion 53, and the edge portion contacts the raised portion 53a of the second engagement protrusion 53. As a result, the movement of the corner member 25 to the outdoor side is restricted. In this state, as shown in FIG. 6, each first engagement protrusion 49 is inserted into the first engagement hole 47 and each first engagement protrusion 49 is inserted into the first engagement hole 47. After being elastically deformed so as to be close to each other, the claw portions 61 and 61 are engaged with the edge portions of the first engagement holes 47 by elastic recovery. In this way, the four corner members 25 are attached.
The window frame 13 is attached to the inner periphery of the puff frame 11, and the window frame position restriction projection 43 (see FIG. 5) is provided on the indoor side end of the window frame 13 on the side cover members 23a and 23b and the eaves cover member 23c. ), The outdoor end of the window frame 13 is positioned by the stepped portion 29a of the outdoor piece 29 of each of the base frames 17, 19, and 21, and the window frame 13 is screwed to the decorative frame 9.

According to the first embodiment, the base frames 17, 19, and 21 constituting the puff frame are each configured to be screwed to the decorative frame 9, and each peg frame 11 includes each base frame as disclosed in Patent Document 1. Since no connecting member for connecting 17, 19, and 21 to each other is provided, the number of parts can be reduced.
The horizontal cover members 23a and 23b have a first engagement hole 47 (or second) formed in a protruding portion 45 that is longer than one end of the horizontal base frames 17 and 19 and protrudes beyond the ends of the horizontal base frames 17 and 19. Since the first engagement protrusions 49 (or the second engagement protrusions 53) of the corner member 25 are engaged with the engagement holes 51), the horizontal base members 17 and 19 do not get in the way and have a simple configuration. The corner member 25 can be attached to the side cover members 23a and 23b.
The corner member 25 is attached by engaging the first engagement protrusion 49 provided on the corner member 25 with the first engagement hole 47 formed in the lateral cover members 23a and 23b. It can be easily attached to the side cover members 23a and 23b.
Since the corner member 25 is engaged with the first engagement hole 47 (or the second engagement hole 51) of the lateral cover members 23a and 23b by the first engagement protrusion 49 (or the second engagement protrusion 53), The corner member 25 can be firmly fixed because it does not easily fall off due to finger catching or the like.
In the first embodiment, as shown in FIG. 2, the expected dimensions of the lateral cover members 23a and 23b are made larger than those in the second embodiment (see FIG. 8) described later, but as shown in FIG. Since the corner member 25 is engaged with the engagement holes 47 and 51 provided in the horizontal cover members 23a and 23b at two positions, that is, the finding surface 55 and the prospective surface 59, the expected dimensions of the horizontal cover members 23a and 23b are Even when it is large, the corner member 25 can be firmly fixed to the lateral cover members 23a and 23b.
As shown in FIG. 6E or FIG. 7, the first engagement holes 47 and the second engagement holes 51 formed in the lateral cover members 23a and 23b have dimensions S1 and T1 in the cover member longitudinal direction (FIG. 7). (See (c)) is longer than the dimensions S2 and T2 of the first engaging protrusion 49 and the second engaging protrusion 53 in the longitudinal direction of the cover member. Even when relative thermal elongation occurs, the thermal elongation of the lateral cover members 23a and 23b can be allowed.
Further, as shown in FIG. 1, the eaves cover member 23c has a lower end placed on the lower horizontal cover member 23a and an upper end disposed with a gap K between the upper horizontal cover member 23b. The thermal expansion of the eaves cover member 23c relative to the upper corner member 25 is also acceptable.
As shown in FIGS. 6 (e) and 6 (f), the first engagement protrusion 49 is engaged with the claw portion 61 whose tip is wider than the width M of the first engagement hole 47 (see FIG. 7B). Therefore, the corner member 25 can be prevented from moving to the indoor side, and the corner member 25 can be prevented from falling off even when an external force is applied in the indoor direction.
The width W of the base 50 of the first engagement protrusion 49 is substantially the same as the width M of the first engagement hole 47 into which the base 50 of the first engagement protrusion 49 is inserted (see FIG. 6E). Therefore, rattling of the corner member 25 with respect to the side cover members 23a and 23b can be prevented.
As shown in FIG. 1, since the lower end 24 of the eaves cover member 23c is placed on the end of the lower horizontal cover 23a, the corner member 25 requires a part or part that defines the lower limit position of the eaves cover member 23c. Therefore, the corner member 25 can have a simple structure and the corner member 25 can be designed with a high degree of freedom.
Since the corner member 25 is provided with the hollow portion 63, the strength of the corner member can be increased. In particular, by providing the hollow portion 63, the corner member 25 can be prevented from being crushed even when the corner member 25 is strongly pressed against the decorative frame 9. The hollow portion 63 may be formed up to the lower limit position of the vertical cover member 21c to further increase the strength of the corner member 25.
Since the upright portion 53a of the second engagement protrusion 53 abuts against the edge of the second engagement hole 51, the position when the corner member 25 is pushed toward the outdoor side is regulated. Since the protrusion 53 can also serve as a position restricting member and it is not necessary to provide a separate position restricting member, the configuration can be simplified. Moreover, since the corner member 25 can be attached by pushing, the attachment of the corner member 25 is easy.
Since the cover members 23a, 23b, and 23c are not fixed in the longitudinal direction, the longitudinal directions of the cover members 23a, 23b, and 23c can be adjusted even when the longitudinal attachment positions of the base frames 17, 19, and 21 are slightly shifted. By shifting and mounting, it can cover without leaving a gap.
As shown in FIG. 5, window frame position restriction projections 43 are provided at the indoor side ends of the horizontal cover members 23 a and 23 b and the eaves cover member 23 c to position the indoor side ends of the window frame 13, and each base frame 17, Since the step portions 29a are provided in the outdoor side pieces 29 and 21 to position the outdoor end of the window frame 13, the positioning of the window frame 13 can be facilitated and the construction is easy.

Other embodiments of the present invention will be described below. In the embodiments described below, the same reference numerals are given to the portions having the same functions and effects as those of the first embodiment described above. The description of this part is omitted, and the following description will mainly explain the differences from the first embodiment.
8 to 11 show a second embodiment. In the second embodiment, the expected size of the puff frame 11 is made smaller than that in the first embodiment, and compared to the first embodiment shown in FIGS. 2 and 3, the upper horizontal base frame 17, The expected dimensions of the lower horizontal base frame 19 and the eaves base frame 21 are smaller in the second embodiment shown in FIGS. In the second embodiment, the upper horizontal base frame 17, the lower horizontal base frame 19, and the eaves base frame 21 are provided with only the main body 27, and do not have the outdoor piece 29 (see FIG. 5). Further, as shown in FIGS. 10 and 11, only the first engagement hole 47 is formed in the upper and lower horizontal cover members 23a and 23b, and the second engagement hole 51 (see FIG. 4) is not provided. And the point which does not have the 2nd engagement protrusion 53 (refer FIG. 4) in the corner member 25 differs from 1st Embodiment. Other configurations are the same as those of the first embodiment.

According to the second embodiment, the same operational effects as those of the first embodiment described above can be achieved except for the operational effects of the second engagement holes 51 and the second engagement protrusions 53. That is, the base frames 17, 19, and 21 constituting the upper frame are each configured to be screwed to the decorative frame 9, and the base frames 17, 19, and 21 as in Patent Document 1 are attached to the upper frame 11. Since no connecting member to be connected is provided, the number of parts can be reduced.
The horizontal cover members 23a and 23b are formed in the first engagement holes 47 formed in the protruding portions 45 that are longer than the ends of the horizontal base frames 17 and 19 and protrude from the ends of the horizontal base frames 17 and 19, respectively. Since the 25 first engaging protrusions 49 are engaged, the corner member 25 can be attached to the lateral cover members 23a and 23b with a simple configuration.
The corner member 25 is attached by engaging the first engagement protrusion 49 provided on the corner member 25 with the first engagement hole 47 formed in the lateral cover members 23a and 23b. It can be easily attached to the side cover members 23a and 23b.
Since the corner member 25 is engaged with the first engagement holes 47 of the lateral cover members 23a and 23b by the first engagement protrusions 49, the corner member 25 is not easily dropped due to finger catching. Can be firmly fixed.
As shown in FIG. 11 (e), the first engagement hole 47 has a dimension S 1 in the cover member longitudinal direction that is longer than a dimension S 2 in the cover member longitudinal direction of the first engagement protrusion 49. 25, even if relative thermal expansion occurs in the horizontal cover members 23a and 23b, the thermal expansion of the horizontal cover members 23a and 23b can be allowed.
Also, in the second embodiment, similarly to the first embodiment, the eaves cover member 23c has the lower end placed on the lower horizontal cover member 23a and the upper end between the upper horizontal cover member 23b and a gap K (see FIG. 11 (e)), the thermal expansion of the eaves cover member 23c with respect to the left and right upper corner members 25 is allowed.
The width W of the base 50 of the first engagement protrusion 49 is substantially the same as the width M of the first engagement hole 47 into which the base 50 of the first engagement protrusion 49 is inserted (see FIG. 6E). Therefore, rattling of the corner member 25 with respect to the side cover members 23a and 23b can be prevented.
As shown in FIGS. 11 (e) and 11 (f), the first engaging protrusion 49 is engaged with a claw 61 whose tip is wider than the width M of the first engaging hole 47 (see FIG. 7 (b)). Therefore, the corner member 25 can be prevented from moving to the indoor side, and the corner member 25 can be prevented from falling off even when an external force is applied in the indoor direction.
As shown in FIG. 1, since the lower end 24 of the eaves cover member 23c is placed on the end of the lower horizontal cover 23a, the corner member 25 requires a part or part that defines the lower limit position of the eaves cover member 23c. Therefore, the corner member 25 can have a simple configuration and the degree of freedom in designing the corner member is high.
Since the corner member 25 is provided with the hollow portion 63, the strength of the corner member can be increased.
Since the cover members 23a, 23b, and 23c are not fixed in the longitudinal direction, the longitudinal directions of the cover members 23a, 23b, and 23c can be adjusted even when the longitudinal attachment positions of the base frames 17, 19, and 21 are slightly shifted. By shifting and mounting, it can cover without leaving a gap.

  FIG. 12 shows a third embodiment. In the third embodiment, the upper and lower ends of the left and right eaves cover members 23c, 23c are provided with protrusions 45 that are longer than the upper end and the lower end of the eaves base frame 21, respectively. A first engagement hole 47 is formed in each of the upper and lower protrusions 45. The corner member 25 is provided with a first engagement protrusion 49 at a position corresponding to the first engagement hole 47. Further, the upper end 26 of the eaves cover member 23c is arranged with a gap K between the upper side cover member 23b. Other configurations are the same as those of the second embodiment.

According to the third embodiment, the cover frame 11 is not provided with a connecting member for connecting the base frames 17, 19, 21 to each other as in Patent Document 1, so the number of parts can be reduced.
The first cover hole 47 is formed in the protrusion 45 that protrudes from the upper end and the lower end of the collar base frame 21 with the upper and lower ends of the collar cover members 23c and 23c being longer than the upper and lower ends of the collar base frame 21, respectively. In addition, since the first engaging protrusions 49 of the corner member 25 are engaged, the corner member 25 can be attached to the cover members 23a, 23b, and 23c with a simple configuration.
The corner member 25 is attached by engaging the first engagement protrusion 49 provided on the corner member 25 with the first engagement hole 47 formed in the lateral cover members 23a and 23b. It can be easily attached to the side cover members 23a and 23b.
Since the corner member 25 is engaged with the first engagement hole 47 of the heel cover member 23c by the first engagement protrusion 49, the corner member 25 is not easily dropped due to a finger catch or the like. Can be fixed.
The width W of the base 50 of the first engagement protrusion 49 is substantially the same as the width M of the first engagement hole 47 into which the base 50 of the first engagement protrusion 49 is inserted (see FIG. 6E). Therefore, rattling of the corner member 25 with respect to the eaves cover member 23c can be prevented.
Since the corner member 25 is provided with the hollow portion 63, the strength of the corner member can be increased.
Since the first engagement hole 47 has a length S1 in the cover member longitudinal direction longer than a dimension S2 in the cover member longitudinal direction of the first engagement protrusion 49, the thermal expansion of the collar cover member 23c with respect to the corner member 25 is increased. acceptable.

The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the present invention.
For example, the corner member 25 may not have the hollow portion 63.
The number of the first engaging protrusions 49 is not limited to two, but may be one, and the number is not limited.
The second engagement holes 51 and the second engagement protrusions 53 may have the same configuration as the first engagement holes 47 and the first engagement protrusions 49 and may not be positioned with respect to the lateral cover members 23a and 23b. good.
The first engagement protrusion 49 is not limited to the provision of the claw portion 61 having a width N larger than the width M of the first engagement hole 47, and is inserted into the first engagement hole 47 without providing the claw portion 61. You can just do it.
The shoji is not limited to the sliding shoji, but may be a single shoji, and the window type is not limited.

DESCRIPTION OF SYMBOLS 1 Inner window 9 Decorative frame 11 Overlay frame 17 Upper horizontal base frame 19 Lower horizontal base frame 21 竪 Base frame 23a Lower horizontal cover member 23b Upper horizontal cover member 23c 竪 Cover member 25 Corner member 45 Projection (end)
47 1st engagement hole (engagement hole of a finding surface)
49 1st engagement protrusion (engagement protrusion of a finding surface)
51 Second engagement hole (prospect surface engagement hole)
53 2nd engagement protrusion (engagement protrusion of prospective surface)
55 Finding surface 59 Vertical prospective surface (expected surface)

Claims (3)

  A cover frame to be installed on the indoor side of the window opening, a window frame fixed to the inner periphery of the cover frame, and a shoji placed on the inner periphery of the window frame. The cover frame includes upper and lower horizontal base frames and left and right side frames.竪 Base frame, cover member attached to each base frame to cover the indoor side surface and outer peripheral side prospective surface of the base frame, and provided at each corner portion of the horizontal base frame and the heel base frame, and the end of the cover member on the indoor side A corner member that is concealed from the corner, and the corner member is provided with an engaging projection on a side surface of the cover member, and at least one of the upper and lower lateral cover members and the left and right saddle cover members has corners at both ends. An engagement hole that engages with the engagement protrusion of the member is formed, and the dimension of the engagement hole in the longitudinal direction of the cover member is longer than the dimension of the engagement protrusion in the longitudinal direction of the cover member. The corner member is relatively movable. The inner window that.   The engagement hole of the cover member is provided on the finding surface and the prospective surface of the cover member, and the engagement protrusion of the corner member is provided at a position facing the engagement hole of the cover member. Item 1. The inner window according to Item 1.   The inner window according to claim 1 or 2, wherein the lower horizontal cover member is longer than the lower horizontal base frame, and the lower end of the eaves cover member is placed on the end of the lower horizontal cover member.

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