JP6174834B1 - Sash frame - Google Patents

Abstract

The present invention provides a sash frame that can have a structure with excellent strength for a cover attached to a frame body. A sash frame 10 for supporting a panel body. A frame main body 11 having a panel mounting portion to which the panel body is attached, a pair of side surface cover portions 31 covering the indoor side surfaces 21 on both sides of the frame main body 11 in the direction of finding X, A frame cover 30 having a front cover portion 41 to be covered. The side cover part 31 has an insertion groove 33 that is recessed in the prospective direction Y. The frame body 11 has an insertion protrusion 25 that is inserted into the insertion groove 33. [Selection] Figure 4

Description

  The present invention relates to a sash frame used for supporting a panel body such as a glass plate.

  In recent years, for sash frames, such as curtain walls that are vertical or unfinished, a metal extrusion such as aluminum is used as the frame body, and a wooden cover made of laminated material or the like is attached to the exposed portion of the frame body on the indoor side. A structure has been proposed (see, for example, Patent Document 1). Thereby, the structure which was excellent in the design property by the texture of the wood of a wooden cover is obtained, ensuring intensity | strength required as a sash frame with a metal frame main body.

JP-A-2005-61110

  By the way, in order to improve the design of the sash frame, it is desired to reduce the length of the sash frame when the curtain wall is viewed from the indoor side, and to make the sash frame slim.

  The present invention has been made in view of such circumstances.

  One embodiment of the present invention relates to a sash frame. The sash frame is a sash frame for supporting the panel body, and includes a frame body having a panel mounting portion to which the panel body is attached, a pair of side surface cover portions covering the indoor side surfaces on both sides of the frame body in the finding direction, A frame cover having a front cover portion that covers the front side of the frame body in the prospective direction indoor side, the side cover portion has an insertion groove that is recessed in the prospective direction, and the frame body is inserted It has the insertion protrusion part inserted in a groove | channel, It is characterized by the above-mentioned.

  The frame cover is configured to be movable in the longitudinal direction with respect to the frame body between a first position where the position with respect to the frame body can be maintained and a second position where the frame cover can be removed from the frame body. It is preferable.

  In addition, it is preferable that a receiving member attached to the frame main body by sandwiching the frame main body from both sides in the finding direction is further provided, and the frame cover is attached to the receiving member.

  Further, the receiving member includes a mounting portion disposed between the frame main body and the front cover portion, and a pair of sandwiching the frame main body from both sides in the finding direction in a state in which the frame main body is elastically deformed outward on both sides in the finding direction. It is preferable to have a side part.

  In addition, the frame body is provided in a plurality in the prospective direction indoor side and has a plurality of fitting grooves recessed in the same direction in the finding direction, and a plurality of front cover parts are provided in the prospective direction outside of the room in the prospective direction. It is preferable to have a plurality of fitting protrusions fitted into the plurality of fitting grooves.

  Moreover, it is preferable that the frame cover further includes an elastic member made of an elastic body arranged in the insertion groove, and is inserted until the insertion protrusion comes into contact with the elastic member in the insertion groove. .

It is a front view which shows the structure of the curtain wall in which the sash frame which concerns on one Embodiment of this invention is used. It is the sectional view on the AA line of FIG. It is the BB sectional view taken on the line of FIG. It is a plane sectional view expanding and showing composition of a sash frame concerning one embodiment of the present invention. (A) is a top sectional view showing the state where a receiving member was removed from a frame main part, and (b) is an enlarged view of P section of (a). (A)-(e) is explanatory drawing for demonstrating the positional relationship of a position holding member and a receiving member.

  In order to improve the design of the sash frame, it is desirable to reduce the length of the sash frame when the curtain wall is viewed from the indoor side, and to make the sash frame slimmer. For this purpose, a structure that can secure the required strength while suppressing the length of the wooden cover attached to the frame body is required. The present embodiment has been made in view of such a situation, and an object thereof is to provide a sash frame that can have a structure with excellent strength with respect to a cover that can be attached to the frame main body even if it is slimmed. .

  1 is a front view showing a configuration of a curtain wall 1 in which a sash frame 10 according to an embodiment of the present invention is used, FIG. 2 is a cross-sectional view taken along line AA in FIG. 1, and FIG. It is the BB sectional view taken on the line of FIG.

  As shown in FIG. 1, the curtain wall 1 includes a frame body 2 configured by a plurality of vertical frames 3 and horizontal frames 4 framed in a lattice shape, and a panel body 5 attached to an opening of the frame body 2. . The vertical frame 3 and the horizontal frame 4 are used as sash frames for supporting the panel body 5. As shown in FIG. 2, the vertical frame 3 is provided along the vertical direction of the building, and is fixed to a housing 6 such as a column, beam, or floor of the building using an angle member (not shown). As shown in FIG. 3, the horizontal frame 4 is bridged between adjacent vertical frames 3 and fixed to the vertical frame 3. A horizontal frame cover 7 made of, for example, a wooden material such as a laminated material is attached to the interior surface of the horizontal frame 4. The panel body 5 is composed of a multilayer glass plate or the like in addition to the illustrated single layer glass plate.

  The sash frame 10 according to the present embodiment is applied to the vertical frame 3 of the frame body 2. In the following description, the direction in which the width of the sash frame 10 is viewed when the curtain wall 1 is viewed from the indoor side is defined as the direction X, and the normal direction with respect to the surface formed by the panel body 5 of the curtain wall 1 is defined as the expected direction Y. explain.

  As shown in FIG. 3, the sash frame 10 includes a frame main body 11, a frame cover 30, and a receiving member 70. The frame main body 11 and the receiving member 70 are made of a metal material such as aluminum, and are obtained by extrusion molding of the metal material. The frame cover 30 is made of, for example, a wooden material such as a laminated material.

  The frame body 11 includes a panel attachment portion 15, a narrow portion 18, and a wide portion 19. A frame body 11 is fixed to the building frame 6.

  The panel body 5 is attached to the panel attachment portion 15. The attachment structure of the panel body 5 with respect to the frame main body 11 is not specifically limited, A well-known attachment structure may be applied. In this embodiment, the panel attachment part 15 is comprised from the groove | channel recessed in the finding direction X, and two are provided in the both sides of the finding direction X. As shown in FIG. The panel body 5 has a peripheral end 5 a disposed in the panel mounting portion 15. Elastic bodies 16 such as a backup material and a sealing material are disposed on both sides of the panel body 5. The panel body 5 is held in a state of being sandwiched by the elastic body 16 in the panel mounting portion 15 by mounting the pressing edge 17 to the panel mounting portion 15.

  The narrow portion 18 is provided on the indoor side in the prospective direction Y of the frame body 11 and is covered by the frame cover 30. The wide portion 19 is provided outside the prospective direction Y with respect to the narrow portion 18. The wide portion 19 is provided such that the finding length, which is the length in the finding direction X, is longer than the finding length of the narrow portion 18. In the present embodiment, the wide portion 19 is provided such that both side surfaces 19 a in the finding direction X are substantially flush with the side surface in the finding direction X of the frame cover 30. Both side surfaces 19 a of the wide portion 19 may be provided on the outer side in the finding direction X with respect to the side surface of the frame cover 30. Thereby, when the sash frame 10 is viewed from the outdoor side of the curtain wall 1, the frame cover 30 protrudes outward from the side surface 19 a of the wide portion 19 and becomes invisible. Even when there is a room where the frame cover 30 is attached to the frame body 11 and a room where the frame cover 30 is not attached within the same floor of the building, a unified impression is given when the sash frame 10 is viewed from the outside of the curtain wall 1.

  In this embodiment, the frame main body 11 is composed of a pair of divided frames 11A and 11B that are divided into two in the direction X of the frame body. The pair of divided frames 11A and 11B are configured to be connectable by screws or the like (not shown) after shifting the relative position in the finding direction X. The frame main body 11 is configured to be able to change its finding length. The frame body 11 may be composed of a single member.

  FIG. 4 is an enlarged plan sectional view showing a part of the structure of the sash frame 10. Fig.5 (a) is a top sectional view which shows the state which removed the receiving member 70 from the frame main body 11, FIG.5 (b) is an enlarged view of the P section of Fig.5 (a). As shown in FIG. 4, the frame body 11 further includes an insertion protrusion 25. The insertion protrusion 25 is provided so as to protrude toward the indoor side in the prospective direction Y outside the indoor side surface 21 on both sides of the frame body 11 in the direction X of finding.

  The frame cover 30 has a pair of side surface cover portions 31 and a front cover portion 41. The side cover part 31 is disposed so as to cover the indoor side surfaces 21 on both sides in the direction X of the frame body 11 from the outside. The front cover part 41 is disposed so as to cover the front side 23 of the frame body 11 in the prospective direction Y room side from the outside. A pair of side cover part 31 and front cover part 41 are provided integrally, and are arranged in a substantially U shape.

  The side surface cover part 31 includes an insertion groove 33 and an elastic member 35. The insertion groove 33 is provided so as to be recessed on the indoor side in the prospective direction Y at the outdoor side end portion 31 a of the side cover portion 31. The insertion groove 33 is provided integrally with the side cover portion 31 by forming a recess in the outer surface of the side cover portion 31. The insertion protrusion 25 of the frame main body 11 is inserted into the insertion groove 33.

  The elastic member 35 is continuously or intermittently disposed in the insertion groove 33 along the longitudinal direction of the side cover portion 31. The elastic member 35 is made of an elastic body such as foamable silicone rubber, and is fixed to the inner wall surface of the insertion groove 33 by adhesion or the like. The insertion protrusion 25 of the frame body 11 is inserted until it comes into contact with the elastic member 35, and the elastic member 35 is held in a state of being elastically deformed by the contact.

  The front cover portion 41 has a position holding member 51 attached to the back surface 41a. The position holding member 51 includes a base portion 53 and a back protrusion portion 55. The base portion 53 is provided in a flat plate shape extending in the finding direction X, and is fixed to the back surface 41 a of the front cover portion 41 by a fixing tool 54 such as a screw.

  The rear protrusion 55 is provided so as to protrude from the rear surface of the base 53 toward the indoor side. The back surface protrusion 55 includes a first back surface protrusion 55A and a second back surface protrusion 55B that are provided with an interval in the finding direction X. The first rear surface protruding portion 55A and the second rear surface protruding portion 55B are provided with a fitting protrusion 56 that protrudes from the tip end portion in the finding direction X. A plurality of fitting protrusions 56 are provided outside the prospective direction Y room with respect to the back surface of the front cover portion 41. The second back surface protruding portion 55B is provided with a protruding piece 57 protruding from the tip portion in the finding direction X opposite to the fitting protruding portion 56.

  According to the frame cover 30 having the above configuration, when the outdoor side end portion 31 a of the side cover portion 31 is displaced in the finding direction X with respect to the frame body 11, the insertion protrusion 25 is formed on the inner wall surface of the insertion groove 33. The position of the side cover portion 31 in the direction of finding X with respect to the frame main body 11 is maintained. Since this position can be maintained, it is not necessary to attach another member to the frame cover 30. In particular, even if there is a gap 32 between the insertion protrusion 25 and the insertion groove 33, the direction X of finding the side cover 31 relative to the frame body 11 due to the elastic restoring force of the elastic member 35 in the insertion groove 33. The position of is more firmly held. Further, when the side cover portion 31 is warped due to solar radiation or the like and is deformed in the out-of-plane direction such as torsion, the insertion protrusion 25 is engaged with the inner wall surface of the insertion groove 33 and the deformation is restrained.

  The receiving member 70 includes an attachment portion 71, a pair of interval holding portions 72, a pair of side portions 73, and an engaging protrusion 74. The attachment portion 71 is provided in a flat plate shape extending in the finding direction X. The attachment portion 71 is disposed between the frame main body 11 and the front cover portion 41. The attachment portion 71 is formed with a through hole 71a penetrating in the prospective direction Y. A female screw hole 24 penetrating in the prospective direction Y is formed in the front surface 23 of the frame body 11. In the present embodiment, in order to cope with variations in the length of the divided frames 11A and 11B, the female screw holes 24 are formed in one of the divided frames 11A and 11B, and the through-hole 27 is formed in the other by processing at the construction site. Is done.

  A screw 75 is inserted into the through hole 71 a of the mounting portion 71, and the screw 75 is screwed into the female screw hole 24 of the frame body 11, and the receiving member 70 is fixed to the frame body 11. In the present embodiment, the screw 75 passes through one female screw hole 24 and the other through hole 27 of the divided frames 11A and 11B. On the outdoor side of the attachment portion 71, a projection 76 made up of the head of the screw 75 is formed. The protrusion 76 may be formed in the attachment portion 71 in advance without using the screw 75.

  The space | interval holding | maintenance part 72 protrudes toward the outdoor side from the attachment part 71, and is provided. The pair of interval holding portions 72 come into contact with the front surface 23 of the frame body 11 when the receiving member 70 is fixed to the frame body 11. At this time, the length of the pair of interval holding portions 72 from the attachment portion 71 is adjusted so that the attachment portion 71 is substantially parallel to the front surface 23 of the frame body 11. In the present embodiment, the length from the attachment portion 71 is adjusted to be substantially the same. Thereby, the inclination of the attaching part 71 of the receiving member 70 with respect to the front surface 23 of the frame main body 11 is suppressed.

  The side portion 73 is provided so as to protrude from the attachment portion 71 toward the outdoor side with an interval in the direction X of finding the attachment portion 71, and is disposed between the frame body 11 and the side cover portion 31. As shown in FIGS. 4 and 5A, the side portion 73 includes a base end portion 73a, a sandwiching portion 73b, and a frame guide portion 73c from the base end side to the front end side. These parts are integrally provided by, for example, bending the flat side part 73. The pair of side portions 73 are provided such that the interval between the sandwiching portions 73b is narrower than the interval between the base end portions 73a, and the frame guide portion 73c moves outward in the finding direction X toward the distal end side of the side portion 73. Inclined so as to spread.

  The pair of side portions 73 are configured to be elastically deformable outside the finding direction X, and can be attached to the frame body 11 by sandwiching the frame body 11 from both sides of the finding direction X. At this time, the pair of side portions 73 are each urged toward the inside of the finding direction X by the elastic repulsive force, and are held against the frame body 11 by the urging force. In the present embodiment, as shown in FIG. 5B, a plurality of grooves 73 d are formed on the inner surface of the portion near the attachment portion 71 in order to easily cause elastic deformation toward the outside in the finding direction X.

  When attached to the frame body 11, the pair of side portions 73 are adjusted so that the respective urging forces are substantially the same. This adjustment of the urging force can be realized by making the dimensions such as the shape and thickness of each side portion 73 the same. Thereby, the relative position of the receiving direction 70 of the receiving member 70 with respect to the frame main body 11 is adjusted. For example, the biasing force is adjusted so that the center position of the attachment portion 71 in the finding direction X approaches the center position of the frame main body 11 in the finding direction X. The receiving member 70 is fixed to the frame body 11 with screws 75 in order to maintain a state in which the relative position to the frame body 11 is adjusted.

  Returning to FIG. 4 and FIG. 5A, in the pair of side portions 73, the distance between the inner surfaces at the tip of the frame guide portion 73 c is larger than the length of the frame main body 11 at the portion where the receiving member 70 is attached. Configured as follows. When the receiving member 70 is attached to the frame main body 11, the receiving member 70 can be attached by being pushed into the frame main body 11 with the frame main body 11 in contact with the inner surface of the frame guide portion 73 c of each side portion 73. The workability is improved.

  A pair of side part 73 is comprised so that the space | interval of the inner surfaces of the clamping part 73b may become smaller than the finding length of the frame main body 11 in the site | part which attaches the receiving member 70. FIG. Thereby, the frame main body 11 can be pinched from both sides of the finding direction X. When the frame body 11 is composed of the divided frames 11A and 11B, a minimum length of the frame body 11 to be found is determined in advance, and the interval between the inner surfaces of the holding portions 73b is smaller than the minimum length. Configure.

  The engagement protrusion 74 is provided so as to protrude from the attachment portion 71 toward the indoor side. Two engaging protrusions 74 are provided at intervals in the finding direction X, and their tip ends 74a project in the same direction in the finding direction X and are formed in a substantially L shape. A plurality of fitting groove portions 77 that are recessed in the same direction of the finding direction X are formed by the engaging protrusions 74 and the attachment portions 71. A plurality of fitting groove portions 77 are provided in the prospective direction Y indoor side with respect to the frame main body 11. A cover guide portion 74b that protrudes from the distal end portion 74a of the engaging protrusion 74 toward the indoor side is provided. The cover guide portion 74b is provided so as to be inclined in the finding direction Y with respect to the direction axis passing through the prospective direction Y. This inclining direction is the same as the direction in which the fitting groove 77 is depressed.

  6A and 6B are explanatory views for explaining the positional relationship between the position holding member 51 and the receiving member 70. FIGS. 6A and 6D are plan sectional views thereof, and FIGS. e) is a front view of the position holding member 51 as seen from the outdoor side. FIGS. 6A and 6D correspond to FIGS. 6B and 6E, respectively. 6B, 6 </ b> C, and 6 </ b> E, the position of the protrusion 76 of the receiving member 70 is indicated by a two-dot chain line.

  The fitting protrusion 56 of the position holding member 51 is fitted into the fitting groove 77 of the receiving member 70 so as to be slidable in the longitudinal direction of the frame body 11. The frame cover 30 moves in the longitudinal direction of the frame body 11 by sliding the fitting protrusion 56 in the fitting groove 77. When the frame cover 30 is moved in one of the longitudinal directions, the movement is restricted by engaging the floor surface 8. This movement may be regulated by engaging other members, sash frames, or the like in addition to the floor surface 8.

  A plurality of protruding pieces 57 of the position holding member 51 are provided at intervals along the longitudinal direction, and a notch 58 is provided between the plurality of protruding pieces 57. When the one fitting projection 56 and the projecting piece 57 are in the movement restricting position where the movement of the frame cover 30 in the longitudinal direction is restricted, the fitting projection 56 and the protruding piece 57 are located between the engaging protrusion 74 and the protrusion 76 of the receiving member 70. Be placed.

  When the frame cover 30 is displaced in the finding direction X and the prospective direction Y with respect to the frame main body 11 at the indoor side end 30b of the frame cover 30, the fitting protrusion 56 and the protruding piece 57 of the position holding member 51 are the receiving members. It engages with the fitting groove 77 and the projection 76 of 70. As a result, the frame cover 30 is attached to the frame body 11 so that the positions of the finding direction X and the prospective direction Y are maintained. At this time, the engagement protrusion 74 of the receiving member 70 and the fitting protrusion 56 of the position holding member 51 are thick so that the frame cover 30 is not removed from the frame body 11 even if the frame cover 30 is displaced in the finding direction Y. Etc. are adjusted.

  On the other hand, as shown in FIG. 6C, the frame cover 30 is configured to be removable from the frame body 11 when moved to the other of the longitudinal directions opposite to the direction in which the movement is restricted. Specifically, the frame cover 30 is moved from the movement restricting position to the other in the longitudinal direction so that the notch 58 is arranged in the direction of finding X with respect to the protrusion 76 of the receiving member 70. As a result, as shown in FIGS. 6D and 6E, when the frame cover 30 is moved in the finding direction X, the protrusion 76 is accommodated in the notch 58, and in the fitting groove 77 of the receiving member 70. The movement in the direction of finding X for extracting the fitting protrusion 56 of the position holding member 51 is allowed. The frame cover 30 is removed from the frame body 11 by being moved toward the indoor side after being moved in the finding direction X.

  As described above, the frame cover 30 is movable in the longitudinal direction with respect to the frame body 11 between the movement restriction position where the position with respect to the frame body 11 is held and the removal position where the frame cover 30 can be detached from the frame body 11. It is comprised with respect to the frame main body 11 by what is called a Kendon type. In particular, in the frame cover 30 according to the present embodiment, the plurality of fitting protrusions 56 of the frame cover 30 are fitted into the plurality of fitting groove portions 77 that are recessed in the same direction of the finding direction X. Therefore, the relative position between the fitting protrusion 56 and the fitting groove 77 can be firmly held by fitting the frame cover 30 to the frame main body 11 in a Kendon manner.

  When the frame cover 30 is attached to the frame main body 11, the position of the frame cover 30 in the prospective direction Y is maintained, so that the elastic member 35 of the side cover portion 31 is attached to the frame as shown in FIG. The main body 11 is held in an elastically deformed state in contact with the insertion protrusion 25 of the main body 11.

  Further, when the frame cover 30 is attached to the frame main body 11, it is moved so that the indoor side end portion of the frame main body 11 enters from the opening of the frame cover 30. At this time, the front end portion of the rear surface protruding portion 55 of the position holding member 51 comes into contact with the cover guide portion 74b of the receiving member 70, and the frame cover 30 is moved in this state, so that the frame is guided by the cover guide portion 74b. The relative position of the finding direction X with respect to the main body 11 is adjusted. When the position holding member 51 is moved until it contacts the front surface 23 of the frame body 11, the insertion protrusion 25 of the frame body 11 is inserted into the insertion groove 33 of the frame cover 30. Thereafter, the frame cover 30 is moved in the finding direction X to the removal position, and the frame cover 30 is moved in the longitudinal direction to the movement restriction position.

  According to the sash frame 10 according to the present embodiment, the insertion protrusion 25 of the frame body 11 is inserted into the insertion groove 33 of the side cover 31. For this reason, the deformation in the out-of-plane direction such as warping and twisting of the side cover portion 31 is restrained by the insertion protrusion 25, and the side cover portion 31 has a structure with excellent strength. Therefore, the strength can be secured while suppressing the length of the side cover portion 31 in the direction of finding X. Therefore, it is possible to obtain a sash frame having excellent strength even when slimmed.

  Further, since the frame cover 30 is attached to the frame body 11 in a so-called Kendon type, the workability at the time of attaching the frame cover 30 is excellent, and the frame cover 30 is difficult to be detached from the frame body 11.

  Further, since the receiving member 70 can be attached to the frame main body 11 by sandwiching the frame main body 11 from both sides in the finding direction X, even if the finding length of the frame main body 11 varies, the variation is absorbed. The frame cover 30 can be attached to the frame body 11. In particular, since the receiving member 70 is attached to the frame body 11 using elastic deformation of the pair of side portions 73, the workability at the time of attachment is excellent. Further, if the relative position in the finding direction X of the receiving member 70 with respect to the frame body 11 is adjusted, the frame cover 30 can be attached with the relative position in the finding direction X accurately matched to the frame body 11. . In addition, if the inclination of the attachment portion 71 of the receiving member 70 with respect to the frame main body 11 is suppressed by the interval holding portion 72, the receiving member 70 can be attached while suppressing the inclination with respect to the frame main body 11.

  Further, the frame cover 30 is not fixed to the frame main body 11 while being restrained by screws, adhesion, or the like. For this reason, even when the curtain wall 1 is deformed in the in-plane direction due to an earthquake or the like, the deformation of the frame cover 30 is suppressed with respect to the deformation of the frame body 11, and the frame cover 30 can be prevented from being broken. Further, even when a wooden material is used for the frame cover 30, it is possible to prevent the frame cover 30 from being broken due to expansion and contraction in the longitudinal direction. Further, when a wooden material is used for the frame cover 30, the side cover portion 31 and the front cover portion 41 of the frame cover 30 have no seam, so that the design is excellent. In addition, the screw is not exposed on the surface of the frame cover 30, and the design is excellent. Further, even when the frame cover 30 made of wooden material is rotted, it is possible to easily replace only the frame cover 30 while leaving the metal frame main body 11.

  As mentioned above, although this invention was demonstrated based on embodiment, embodiment shows only the principle and application of this invention. In the embodiment, many modifications and arrangements can be made without departing from the spirit of the present invention defined in the claims.

  Although the sash frame 10 according to the above-described embodiment is illustrated as being applied to the vertical frame 3 of the frame body 2, the sash frame 10 may be applied to the horizontal frame 4 of the frame body 2. Further, the frame body 11 does not have to be provided with the wide portion 19. The fitting groove 77 of the frame body 11 may be provided on the front surface 23 of the frame body 11 without attaching the receiving member 70 to the frame body 11. Further, although the case where the fitting protrusion 56 of the frame cover 30 is provided on the position holding member 51 is illustrated, it may be provided separately from the position holding member 51 on the back surface of the front cover portion 41. Moreover, the receiving member 70 should just be attached with respect to the frame main body 11 by pinching the frame main body 11 from both sides of the finding direction X, for example, may be attached by the clamp mechanism.

10: sash frame, 11: frame main body, 15: panel mounting portion, 21: interior side surface, 23: front surface, 25: insertion protrusion, 30: frame cover, 31: side cover portion, 33: insertion groove, 35 : Elastic member, 41: front cover part, 70: receiving member, 71: mounting part, 73: side part,

Claims (5)

A sash frame for supporting the panel body,
A panel attachment portion to which the panel body is attached; a wide portion provided on the indoor side in the prospective direction of the panel attachment portion; a wide portion having a hollow portion; and a narrow portion extending from the wide portion to the indoor side in the prospective direction; A frame body having
The frame body is a pair of divided frames adjacent to each other in the direction of finding;
Each of the pair of divided frames constitutes separate side surfaces on both sides in the finding direction of the wide portion, and constitutes a side surface in the finding direction of the narrow portion connected to the side surface in the finding direction of the wide portion. And sash frame. The pair of divided frames have portions that overlap each other,
The sash frame according to claim 1, wherein the overlapping portion separates a space inside the wide portion and a space inside the narrow portion. A frame cover having a pair of side cover portions covering the indoor side surface of the narrow portion and a front cover portion covering the front surface of the narrow portion in the prospective direction indoor side is attached to the frame body via a receiving member. Is possible,
The sash frame according to claim 1 or 2, wherein the entire receiving member is configured to be covered by the frame cover in a cross section in a plan view.   The sash frame according to claim 3, wherein a side surface of the side cover portion in the direction of finding and a side surface of the wide portion in the direction of finding are substantially flush. The receiving member has a fitting groove,
The sash frame according to claim 3 or 4, wherein the frame cover is provided with a fitting projection that can be fitted into the fitting groove.

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