JP5805899B1 - Window frame and window - Google Patents

Abstract

A window frame (15) is provided for a sash (5) having a fitting groove (12) having a pair of protrusions (8, 10) extending in parallel with each other as a groove wall portion, and the window frame (15) is fitted in the fitting groove (12) of the sash (5). When the frame member 16 is fitted and attached, no rattling occurs. A window frame 15 is composed of four plate-like frame members 16 arranged in a rectangular shape, and the outdoor end of each frame member 16 is arranged in the thickness direction on the outdoor end surface of each frame member 16. A bottomed cut groove 23 is formed so as to be divided into first and second divided portions 17, 18. The first divided portion 17 is thinner than the second divided portion 18, and the bottom of the cut groove 23 is formed. An elastic piece that can be bent and deformed in the thickness direction of the frame member 16 with the base portion 17a at the position corresponding to the fulcrum as a fulcrum. When the frame member 16 is fitted into the fitting concave groove 12 of the sash 5, the first divided portion 17 is bent and deformed with the base portion 17a as a fulcrum, so that the frame member 16 is sandwiched between the both 8 and 10. It should be elastically held in the state. [Selection] Figure 6

Description

  The present invention relates to a window frame and a window.

  In general, a window frame called a frame is attached to the interior side of the sash for parting between the sash (joint frame) constructed in the opening of a window or the like of the building and the surrounding wall finish. Yes. In this window frame, for example, frame members made of, for example, four elongated plates are arranged in a rectangular shape.

  As such a window frame (frame) mounting structure, as shown in Patent Document 1, for example, an angle with a U-shaped cross section is provided on the indoor side of a sash to be constructed in an opening of a building. There is known a structure in which each frame member (plate material) of a window frame is fitted into the fitting groove.

Japanese Patent No. 4554717

  By the way, in the thing of the said patent document 1, while providing the engagement part of a return shape in one of the angles of a sash, an engagement ditch | groove is formed in the surface of the thickness direction of each frame member in a window frame (frame), When the frame member is fitted to the angle, the engaging portion of the sash is engaged with the engaging groove of the frame member and is prevented from coming off.

  However, in this case, the engaging portion of the sash protrudes from the angle in order to engage with the engaging groove of the frame member, and the protruding engaging portion is on the surface on the outdoor side of the engaging groove in the frame member. Need to pass through. For this reason, the interval between the angles is set slightly smaller than the thickness of the frame member, and due to the difference in dimensions, a gap is formed between the sash and the frame member when the frame member is fitted to the sash. It is inevitable that this occurs.

  The present invention has been made in view of such points, and the object thereof is to improve the structure of the window frame (frame) so that the frame member of the window frame is fitted into the fitting groove of the sash. In some cases, the window frame can be stably held in the sash so that no rattling occurs.

  In order to achieve the above object, according to the present invention, the end portion of the frame member of the window frame is divided into two in the thickness direction, one of which can be bent and deformed, and the frame member is sashed using the bending deformation. It was made to fit in the press-fit state in the fitting concave groove.

Specifically, according to the first aspect of the present invention, a metal sash is formed in the opening of a building, and is formed with a fitting groove that opens to the indoor side with a pair of protrusions extending in parallel as groove walls. A window frame that is fitted and attached to the sash having the main body in the fitting groove, the window frame comprising four plate-like frame members arranged in a rectangular shape, and each frame member A bottomed cut groove is formed on the outdoor end surface of the frame member so as to divide the outdoor end of the frame member into first and second divided portions in the thickness direction, and the first divided portion is divided into second divided portions. The thickness of the sash body is thinner, and it is possible to bend and deform in the thickness direction of the frame member with the base at the position corresponding to the bottom of the cut groove as a fulcrum, and the frame member is fitted into the fitting groove of the sash body Sometimes, the first divided part is bent and deformed with the base as a fulcrum, so that the frame member is held elastically in a state sandwiched between the protrusions. Is configured to be, among the pair of sash body ridges, the ridges located in the first division portion of the frame member when the frame member is fitted into the fitting groove, the An engaging portion is provided to bend and deform by pushing the first divided portion in the direction toward the other protrusion, and the bottom of the cut groove is engaged in a state where the frame member is fitted in the fitting groove. The portion is provided at a position deeper in the indoor direction than a position where the portion engages with the first divided portion .

In this 1st invention, the 1st and 2nd division part is formed in the outdoor side end part of each frame member in a window frame by the notch groove of the outdoor side end face, and the 1st division part is more than the 2nd division part Since the thickness is thin and can be bent and deformed with the base as a fulcrum, when the outdoor end of the frame member is fitted into the fitting groove of the sash body , the end of the frame member is the ridge of the sash body ( The first divided portion is bent and deformed with the base as a fulcrum, and the thickness of the end portion of the frame member is apparently smaller than the original thickness. In this state, the end of the frame member is inserted into the fitting groove and fitted. In this fitted state, the grooves of the ridges (fitting groove of the first and second divided portion side surface, each sash body at the ends of the frame member by the restoring force bending deformation of the first divided portion attempts to return And is elastically held in a state where the end of the frame member is sandwiched between both protrusions. In this way, the frame member is elastically held while being sandwiched between the protrusions, so that no gap is generated between the frame member and the groove wall portion of the fitting groove, and the window frame is stabilized without rattling. Can be held.

According to a second invention, in the first invention, the depth of the cut groove is determined by the protrusion of the protrusion on the first divided portion side of the frame member when the frame member is fitted into the fitting groove of the sash body. characterized in that also Ri by height large.

In the second aspect of the invention, the depth of the cut groove is larger than the protruding height of the protrusion on the first divided portion side of the frame member, so that the outdoor end of the frame member is fitted in the fitting groove of the sash body. When combined, the frame member is fitted to the fitting groove of the sash body with respect to the position of the bottom of the cut groove, that is, the base of the first divided portion. That is, conversely, when the depth of the cut groove is smaller than the protruding height of the protrusion on the first divided portion side of the frame member, the outdoor end of the frame member is fitted into the fitting concave groove of the sash body. In this case, only the first divided portion is bent at the initial stage, and the first divided portion does not bend any more even if the fitting progresses. The member can be smoothly fitted into the fitting groove of the sash body .

The third invention is the first or second invention, the surface of the first divided portion of the frame member, the engagement of the sash body in a fitted state of the fitting groove of the frame member and the sash body An engaged portion that engages with the portion is formed.

In the third invention, in the state in which the outdoor-side end portion of the frame member is fitted into the fitting groove of the sash body, the engaged portion of one of the protrusions of the engagement portion is a frame member of the sash body Since the frame member is engaged, even if the frame member tries to come out of the fitting groove, it is suppressed by the engagement between the engaging portion and the engaged portion, and thereby the fitting state between the frame member and the sash is stable. Held.

In a fourth aspect based on the third aspect, the engaging portion of the sash body is a protruding portion that protrudes so that a part of the protruding portion faces the opposing protruding portion, and the engaged portion is a frame member. The groove portion is formed on the surface of the first divided portion side, and the protrusion portion of the sash body is engaged with the groove portion.

In this 4th invention, in the state which the outdoor side edge part of the frame member was fitted by the fitting groove of the sash body , the protrusion part of a protrusion engages with the groove part of a frame member. In this case, the same effect as that of the third invention can be obtained.

In a fifth aspect based on the fourth aspect, the engaged portion is a plurality of concave grooves formed side by side along a direction connecting the outdoor side and the indoor side of the frame member. One feature is that the protrusions of the sash body engage with each other.

In the fifth aspect of the invention, in the state in which a plurality of concave grooves are formed side by side on the surface of the frame member on the first division portion side, and the outdoor end of the frame member is fitted into the fitting concave groove of the sash body. The protrusion of the sash body is engaged with one of the grooves. By changing the position of the concave groove portion with which the protrusion is engaged, the fitting position when the frame member is fitted into the fitting concave groove of the sash body can be changed.

According to a sixth invention, in any one of the first to fifth inventions, a notch step portion that accommodates the other protrusion of the sash body is provided on the surface of the frame member on the second divided portion side. It is formed so that the protrusion accommodated in the notch step and the surface other than the notch step may be flush with each other.

In the sixth aspect of the invention, when the notch step is formed on the surface of the frame member on the second divided portion side, and the protrusion of the sash body is accommodated in the notch step, the protrusion and the notch Since the surface on the second divided portion side other than the stepped portion is flush, the appearance on the appearance can be improved.

  A seventh invention relates to a window, and this window is characterized in that any one of the window frames of the first to sixth inventions is attached to a sash.

  In the seventh invention, the frame member of the window frame is elastically held in a state of being sandwiched between the sash protrusions, and no gap is generated between the frame member and both groove wall portions of the fitting groove, A window in which the frame is stably held without rattling is obtained.

  As described above, according to the present invention, each frame member in a window frame that is attached to a sash constructed in an opening of a building by being fitted into a fitting concave groove having the ridge as a groove wall portion. A notch groove is formed in the outdoor end surface of the frame member, the outdoor end portion of the frame member is divided into two in the thickness direction, and the thin divided portion is used as a fulcrum at the base corresponding to the bottom of the cut groove. When the frame member is fitted in the fitting groove of the sash, the thin divided portion is bent and deformed so that the frame member is sandwiched between the sash protrusions. By elastically holding in this state, there is no gap between the frame member and both groove wall portions of the fitting groove, and the window frame can be stably held without rattling.

FIG. 1 is a horizontal sectional view showing a main part of a window according to Embodiment 1 of the present invention. FIG. 2 is a cross-sectional view illustrating the overall configuration of the frame member according to the first embodiment. FIG. 3 is an enlarged cross-sectional view of the outdoor end of the frame member. FIG. 4 is a perspective view of the entire window frame attached to the window as seen from the indoor side. FIG. 5 is a perspective view showing a state in which the window frame is fitted in the fitting concave groove of the sash at the corners of the window frame. FIG. 6 is a cross-sectional view showing a state in which the frame member is fitted into the fitting concave groove of the sash. FIG. 7 is a view corresponding to FIG. FIG. 8 is a view corresponding to FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The following description of the embodiments is merely illustrative in nature and is not intended to limit the present invention, its application, or its use at all.

(Embodiment 1)
FIG. 1 shows the main part of a window according to Embodiment 1 of the present invention. This window constitutes an opening of a building, and a pair of left and right columns 1 and 1 (only one is shown) and upper and lower parts not shown. It is divided into the part enclosed by the window lintel and the window stand. Although FIG. 1 does not show the entire window, this FIG. 1 shows the window as being cut along the horizontal plane at the upper and lower intermediate portions, and the left side of FIG. 1 is the center side of the window opening, The upper side is the outdoor side, and the lower side is the indoor side.

  A sash 5 as a joinery frame is constructed on the peripheral edge of the window. This sash 5 is formed by, for example, combining aluminum extruded materials in a rectangular shape in accordance with the opening shape of the window (see FIGS. 4 and 5), and the pillars 1 and 1, window lintel and window stand at the peripheral edge of the window. It is installed and fixed to. In FIG. 1, reference numeral 2 denotes a manger filled between the pillar 1 and the sash 5.

  As shown in FIG. 5, the sash 5 includes a sash body 6 that is fixed to the peripheral edge of the window, and the sash body 6 has a part of the sash body 6 along the opening surface of the window (the horizontal direction in FIG. 1). ), And an outer peripheral ridge 8 positioned on the outer peripheral side (right side in FIG. 1) of the window opening and the inner peripheral side (in FIG. 1) The inner peripheral ridges 10 located on the left side are projected toward the indoor side, and the pair of ridges 8 and 10 are arranged so as to extend parallel to each other along the peripheral edge of the window. The outer peripheral ridge 8 is thinner than the inner peripheral ridge 10, and the protruding height h from the back surface of the flat portion 6 a of the sash body 6 is lower than the inner peripheral ridge 10. The protrusions 8 and 10 are used as groove walls, and a flat groove 6a of the sash body 6 is used as a groove bottom to form a fitting groove 12 that opens to the indoor side.

  Of the outer and inner peripheral ridges 8 and 10 constituting the groove wall portion of the fitting groove 12 of the sash 5, the outer peripheral ridge 8 is engaged with the opposite side of the inner peripheral ridge 10. A protruding portion 9 is provided as a portion. The protrusion 9 is formed in a shape in which the vicinity of the tip of the outer peripheral ridge 8 is partially bent into a substantially cross-sectional shape or an L-shaped cross section, and is directed toward the inner peripheral ridge 10. The distance s between the protruding portion 9 and the inner peripheral ridge 10 protrudes from the other portion of the outer peripheral ridge 8, and the bottom surface 20a and the rear surface of the notch step portion 20 in the frame member 16, which will be described later. It is smaller than the thickness t between 16b by a predetermined dimension (see FIG. 3).

  As shown in FIGS. 4 and 5, the window frame 15 according to the first embodiment of the present invention is fitted and attached to the fitting groove 12 of the sash 5. The window frame 15 is also called a picture frame, and is composed of four elongated plate-like frame members 16, 16,... (Only one is shown in FIG. 1), and each of the frame members 16, 16,. One end portion in the direction is fitted into the fitting concave groove 12 of the sash 5 and assembled into a frame shape, so that a pair of vertical frames extending in the vertical vertical direction and an upper frame and a lower frame extending in the horizontal direction are provided. It is composed. FIG. 4 shows the entire window frame 15 as viewed from the indoor side in perspective (one-point perspective). The frame members 16, 16 arranged on the left and right sides in the figure cause the frame frame to move upward. The upper frame is constituted by the arranged frame member 16, and the lower frame is constituted by the frame member 16 arranged further on the lower side. Moreover, in FIG. 1, only one hook frame is shown.

  The four frame members 16, 16,... Are basically plate members having the same width and thickness but having different lengths. The width is, for example, 104.6 mm, and the thickness is, for example, 19.6 mm. It is. Each of these frame members 16, 16,... Has one end in the width direction facing the outdoor side, the surface 16a, which is one surface in the thickness direction, the inner peripheral side (center side) of the window, and the other side. It arrange | positions so that the back surface 16b which is a surface may face the outer peripheral side (opposite side of a center) of a window, respectively. Each frame member 16 is made of, for example, a woody material such as MDF, plywood, LVL, LVS, or particle board.

As shown in FIGS. 2 and 3, the corner 16 of the outdoor end is cut out in a rectangular shape on the surface 16 a (upper side in FIG. 2) located on the inner peripheral side of the window in each frame member 16. The notch step portion 20 is formed so as to extend over the entire length direction of the frame member 16 (the direction perpendicular to the plane of the drawing in FIGS. 2 and 3), and the notch step portion 20 is a frame member. 16 has a bottom surface 20a parallel to the surface 16a. The notch step 20 has a dimension in the direction along the width direction of the frame member 16 (frame member 1).
6 is a little shorter than the protruding height of the inner peripheral ridge 10 of the sash 5 in the direction along the thickness direction of the frame member 16. The depth (the dimension from the position of the surface 16a of the frame member 16 to the bottom surface 20a of the notch step portion 20) is formed to be substantially the same as that of the inner peripheral ridge 10, and as shown in FIG. Is fitted in the fitting groove 12 of the sash 5, the inner circumferential ridge 10 is accommodated in the notch step portion 20, and in the accommodated state, other than the inner circumferential ridge 10 and the notch step portion 20. The surface 16a of the frame member 16 is configured to be flush with the surface 16a.

  Further, a bottomed cut groove 23 extending in parallel with the front and back surfaces 16 a and 16 b is formed on the outdoor end face of each frame member 16 in the vicinity of the back surface 16 b over the entire length direction of the frame member 16. Has been. The cut groove 23 is formed in a slit shape formed by cutting along the front and back surfaces 16a and 16b with a saw or the like at a predetermined distance (for example, 14.85 mm) from the front surface 16a on the outdoor end surface of the frame member 16. The groove width is, for example, 1.5 mm and the depth d is 12.85 mm. The depth d of the cut groove 23 is determined by the outer peripheral ridge 8 of the sash 5 (on the first divided portion 17 side of the frame member 16 when the frame member 16 is fitted in the fitting concave groove 12 of the sash 5). The protrusion height h is preferably equal to or greater than the protrusion height h (d ≧ h).

  The cut-out groove 23 divides the outdoor end of the frame member 16 into a first divided portion 17 on the back side and a second divided portion 18 on the front side in the thickness direction, and the first divided portion 17 is cut into the cut groove. 23 and the back surface 16a of the frame member 16, and the second divided portion 18 is formed between the cut groove 23 and the notch step portion 20, respectively. Further, since the cut groove 23 is formed at a position shifted to the back side on the outdoor side end face of the frame member 16, the thickness t1 of the first divided portion 17 is 4 mm, for example, and the thickness t2 of the second divided portion 18 (for example, 14.1 mm), and this thinness makes the first divided portion 17 an elastic piece that can be bent and deformed in the thickness direction of the frame member 16 with the base portion 17a at a position corresponding to the bottom of the cut groove 23 as a fulcrum. Has been.

  Further, as shown in FIG. 6, when each frame member 16 is fitted into the fitting groove 12 of the sash 5, the first divided portion 17 of the frame member 16 has the base portion 17a as a fulcrum and the tip portion on the front side. The frame member 16 is sandwiched between the ridges 8 and 10 which are both groove wall portions of the fitting concave groove 12 by being bent and deformed so as to be moved toward (to narrow the opening side of the cut groove 23). It is designed to be elastically held in the state where it is in contact.

  As shown in FIG. 2, each frame member 16 has a surface decorative layer 19 in a range from the cut groove 23 on the outdoor end surface to the interior side portion of the back surface 16b through the surface 16a or the indoor end surface. It is integrally formed across.

  Therefore, in the said embodiment, while the sash 5 is constructed in a window, the outdoor side edge part of each of the four frame members 16, 16, ... is the window 16 in the fitting concave groove 12 of the sash 5. Are inserted and fitted in a state in which the back surface 16b is disposed on the outer peripheral side of the window, so that, as shown in FIGS. 4 and 5, the four frame members 16, 16, A window frame 15 is attached to the sash 5. The window frame 15 is fixed only by being inserted into the sash 5, but is fixed to the wooden base of the surrounding wall with a wood screw or the like. The four frame members 16, 16,... Are assembled into a frame shape to become the window frame 15, and are fixed to each other by screwing or the like.

And the 1st and 2nd division parts 17 and 18 are formed in the outdoor side edge part of each frame member 16 by the notch groove 23 of the outdoor side end face, and thickness t1 of the 1st division part 17 is the 2nd division part As shown in FIG. 6 (a), the first divided portion 17 is an elastic piece that can be bent and deformed with the base portion 17a corresponding to the bottom of the cut groove 23 as a fulcrum. In addition, the frame member 16
When the outside end of the frame member 16 is fitted into the fitting groove 12 of the sash 5, the outside edge of the frame member 16 is the groove wall portion of the fitting groove 12 as shown in FIG. By being pushed by the projection 9 of the outer peripheral ridge 8, the first divided portion 17 is bent and deformed counterclockwise in FIG. 6 with the base portion 17a as a fulcrum, and the tip portion is cut toward the front side. The opening side of the groove 23 becomes narrow. Due to this deformation, the thickness of the outdoor end of the frame member 16 is apparently smaller than the original thickness t, and in this state, the outdoor end of the frame member 16 has a fitting groove between the protrusions 8 and 10. 12 is inserted and fitted. In this fitted state, for example, the outdoor side end surface of the inserted frame member 16 is slightly separated from the inner bottom surface of the fitting concave groove 12, and the indoor side surface of the notch step portion 20 is the inner peripheral ridge of the sash 5. 10 is in contact with the tip surface. At the same time, the front and back surfaces 16a and 16b (specifically, the bottom surface 20a and the back surface 16b of the notch step portion 20) at the outdoor end portion of the frame member 16 are restored by the restoring force that the bending deformation of the first divided portion 17 tries to return. Each of the sashes 5 is pressed against the ridges 8 and 10 which are the groove walls of the fitting groove 12 of the sash 5 and is elastically held in a state where the outdoor side end of the frame member 16 is sandwiched between the ridges 8 and 10. The In this way, the frame member 16 is elastically held in a state of being sandwiched between the two ridges 8 and 10, so that the frame member 16 and the both groove wall portions (ridges 8 and 11) of the fitting groove 12. There is no gap, and the window frame 15 can be stably held on the sash 5 without rattling.

  1, 5, and 6 (b), the deformation of the first divided portion 17 is exaggerated, and the first divided portion 17 is a front and back surface 16 a at the outdoor side end of the frame member 16. , 16b only needs to be deformed so as to be in pressure contact with the ridges 8, 10 of the sash 5, respectively.

  At that time, by making the depth d of the cut groove 23 equal to or larger than the protrusion height h of the outer peripheral ridge 8 of the sash 5 (d ≧ h), the following operational effects can be obtained. . That is, when the outdoor end of the frame member 16 is fitted into the fitting groove 12 of the sash 5, the frame member 16 is positioned relative to the position of the bottom of the cut groove 23, that is, the base 17a of the first divided portion 17. The outdoor portion is fitted into the fitting groove 12 of the sash 5. Conversely, if the depth d of the cut groove 23 is d <h, which is smaller than the protrusion height h of the outer peripheral ridge 8 of the sash 5, the first divided portion 17 is located outside the frame member 16. The end part only bends in the initial stage when fitting into the fitting groove 12 of the sash 5, and no further bending occurs even if the fitting progresses. In this case, the fitting should be performed smoothly. Becomes difficult. However, if the depth d of the cut groove 23 is equal to or greater than the protruding height h of the outer peripheral ridge 8 of the sash 5 as in this embodiment, this does not occur, and the outdoor end of the frame member 16 The first divided portion 17 bends until the entire portion is fitted in the fitting concave groove 12 (the first divided portion 17 remains bent even after being fitted), and the frame member 16 The sash 5 can be smoothly fitted into the fitting concave groove 12.

  Further, a notch step portion 20 that accommodates the inner peripheral ridge 10 of the sash 5 is formed on the surface 16 a of the outdoor side end portion of the frame member 16, and the inner peripheral side protrusion of the sash 5 is formed in the notch step portion 20. When the strip 10 is accommodated, the protrusion 10 and the surface 16a of the frame member 16 other than the notched step portion 20 are flush with each other. In addition, since no gap is formed between the side surface of the notched step portion 20 and the inner peripheral ridge 10, the appearance of the appearance can be improved.

(Embodiment 2)
FIG. 7 shows a second embodiment of the present invention (in the following embodiments, the same parts as those in FIGS. 1 to 6 are denoted by the same reference numerals, and detailed description thereof is omitted). An engaged portion is provided on the back surface 16b.

  In other words, in this embodiment, a concave groove portion 25 having a U-shaped cross section is formed on the back surface 16b of each frame member 16 so as to extend over the entire length direction of the frame member 16. The frame member 16 and the fitting groove 12 of the sash 5 are engaged with the protruding portion 9 (engagement portion) of the outer rim 8 of the sash 5 so as to be recessed. The groove portion 25 constitutes an engaged portion. Other configurations are the same as those of the first embodiment.

  In the case of this embodiment, in the state in which the outdoor side end portion of each frame member 16 is fitted in the fitting groove 12 between the ridges 8 and 10 of the sash 5, the protruding portion of the outer peripheral side ridge 8 of the sash 5. 9 (engagement portion) engages with the groove portion 25 (engaged portion) of the back surface 16 b of the frame member 16. Therefore, even if the frame member 16 tries to come out of the fitting groove 12, it is suppressed by the engagement between the engaging portion 9 and the groove 25, and this causes the fitting between the frame member 16 and the sash 5. The combined state is stably maintained.

(Embodiment 3)
FIG. 8 shows Embodiment 3 of the present invention, in which a plurality of concave groove portions 25 formed on the back surface 16b of the frame member 16 are provided.

  That is, in this embodiment, a plurality of concave grooves 25, 25,... Extending in the longitudinal direction of the frame member 16 on the back surface 16 b of the frame member 16 are provided on the outdoor side. Are formed in a wavy shape along the direction connecting the interior and the indoor side, and in the fitted state between the frame member 16 and the fitting groove 12 of the sash 5, the groove portions 25, 25,. The protrusion 9 (engagement part) in the outer peripheral side protrusion 8 of the sash 5 is engaged with one of these. Other configurations are the same as those of the second embodiment.

  In this embodiment, when the outdoor end of the frame member 16 is fitted into the fitting groove 12 of the sash 5, the protrusion 9 of the outer peripheral ridge 8 serving as the inner surface of the fitting groove 12. Are engaged with one of the plurality of concave grooves 25, 25,... On the back surface 16 b of the frame member 16. The fitting position when the frame member 16 is fitted into the fitting groove 12 of the sash 5 can be changed by changing the position of the groove 25 to which the protrusion 9 is engaged.

(Other embodiments)
In the above embodiment, the cut groove 23 is formed on the back surface 16b side (outer side of the window) on the outdoor end surface of the frame member 16, but it can also be formed on the front side 16a (inner side of the window).

  The present invention is extremely useful because there is no gap between the frame member and both groove wall portions of the fitting recess groove of the sash, and the window frame can be stably held without rattling.

5 Sash 8 Outer ridge 9 Projection (engagement part)
h Protrusion height 10 Inner peripheral ridge 12 Fitting groove 15 Window frame 16 Frame member 17 First divided portion 17a Base t1 Thickness 18 Second divided portion t2 Thickness 20 Notch step portion 23 Cut groove d Depth 25 Concave groove (engaged part)

Claims (7)

For the sash having a metal sash body formed in the opening of the building and having a pair of protrusions extending in parallel with each other as a groove wall and opening to the indoor side, the fitting recess A window frame fitted and attached to a groove,
Consists of four plate-like frame members arranged in a rectangular shape,
A bottomed cut groove is formed on the outdoor end face of each frame member so as to divide the outdoor end of the frame member into first and second divided parts in the thickness direction,
The first divided portion is thinner than the second divided portion, and can be bent and deformed in the thickness direction of the frame member with a base portion at a position corresponding to the bottom of the cut groove as a fulcrum,
When the frame member is fitted into the fitting groove of the sash body , the first divided portion is bent and deformed with the base as a fulcrum so that the frame member is elastically held in a state of being sandwiched between the protrusions. Composed of
Of the pair of ridges of the sash body, the ridge located on the first divided portion side of the frame member when the frame member is fitted in the fitting concave groove includes the first divided portion. Is provided in the direction toward the other ridge to bend and deform,
The bottom of the cut groove is provided at a position deeper in the indoor direction than the position at which the engaging portion engages with the first divided portion in a state where the frame member is fitted in the fitting concave groove. Characteristic window frame. In claim 1,
Cutting depth of the grooves, the window, wherein the greater Ri by the protruding height of the first divided portion of the protrusion of the frame member when the frame member is fitted to the fitting groove of the sash body frame. In claim 1 or 2,
The surface of the first divided portion of the frame member, the engaged portion to be engaged with the engaging portion of the sash body is formed in a fitting state with the fitting groove of the frame member and the sash body A window frame characterized by In claim 3,
The engaging part of the sash body is a protruding part that protrudes so that a part of the protruding part faces the opposing protruding line,
The engaged portion is a concave groove formed on the surface of the frame member on the first divided portion side, and is configured such that the projection of the sash body is engaged with the concave groove. . In claim 4,
The engaged portion is a plurality of concave grooves formed side by side along the direction connecting the outdoor side and the indoor side of the frame member,
A window frame characterized in that a projection of a sash body is engaged with one of the concave grooves. In any one of Claims 1-5,
A notch step for accommodating the other protrusion of the sash body faces the surface other than the notch step on the surface on the second divided portion side of the frame member. A window frame that is formed to be uniform.   A window, wherein the window frame according to any one of claims 1 to 6 is attached to a sash.

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