JP2001182436A - Fixing device of window frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To firmly fix a window frame for installing a sealing material brought into close contact with an outdoor side surface of a building frame to the building frame with high stability and high sealing performance. SOLUTION: This device for fixing a window frame by pressing an elastic sealing material installed in a facing part of upper and lower horizontal frame materials and left and right vertical frame materials to a building frame, is composed of the window frame for arranging the first engaging edge in the vicinity of a sealing material installing groove for fitting and installing the sealing material and arranging the second engaging edge on an outside surface of an intermediate part of a base wall of the respective frame materials, anchor metal fittings arranged on the outer peripheral surface side of the respective frame materials of the window frame and fixed by engaging with the first engaging edge and the second engaging edge of the respective frame materials and drawing means being installed on the indoor side of the building frame so as to respectively correspond to the anchor metal fittings and drawing the respective anchor metal fittings in the indoor direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixing device for a frame of a window frame, and more particularly, to an elastic member mounted on an inner surface of an imposition portion of upper and lower horizontal frame members and left and right vertical frame members constituting a window frame. The present invention relates to a device for fixing a window frame by pressing a sealing material having the above structure against an outdoor side surface of a building frame.

[0002]

2. Description of the Related Art Some window frames are referred to as imposition-type window frames based on a form of attachment to a building. This has a base wall that holds a fitting or a glazed glass, and an imposition wall that extends from one end in the width direction of the base wall in a direction away from the center of the window frame opening. The fitting portion is formed by a base wall continuous with a rectangle of the entire frame material, and the mounting portion is formed by a rectangular mounting wall at the outdoor end of the fitting portion. The fitting part is fitted into a window opening formed in the building body, and the imposition part is integrally attached to the outdoor side surface of the building body, usually, the building body. It is fixed in a state of being pressed against the outdoor side surface that is continuous with the rectangle of the window opening frame. And, the imposition type window frame is sealed in a sealing material mounting groove formed on the inner surface of the imposition wall in order to enhance the sealing performance (watertightness and airtightness) between the imposition portion and the building vehicle. The sealing material is fitted to the building frame or the outdoor side surface of the window frame (Japanese Utility Model Publication No. 51-52854, Japanese Patent Laid-Open No.
131634, JP-A-10-317821).

[0003] Sealing material mounting grooves (hereinafter sometimes simply referred to as grooves) are provided at the end of each mounting wall in order to prevent rainwater from entering between the mounting wall and the outdoor side surface of the building vehicle. It is formed at a position close to the part. Conventionally, in a device for fixing a window frame equipped with such a sealing material in a state where the window frame is pressed against a building frame, a screw is passed through the sealing material from the outdoor side of the imposition wall,
It is known that the screw is further screwed into a building frame or a window opening frame (Japanese Patent Application Laid-Open No. 10-317821).

FIG. 8 is a longitudinal sectional view of a window showing an example of a conventional fixing device for an imposition type window frame, and FIG. 9 is a rear view of the window frame. In the upper horizontal frame member H of the window frame WF, a sealing material mounting groove 83 formed by two vertically extending ridges 81 and 82 is vertically separated, and the lower horizontal frame member S is vertically separated in parallel. A groove 86 formed by the two projected ridges 84, 85 is formed on the left and right vertical frame members J1, J2 by inner and outer three ridges 87, 88, 89 separated in parallel to the left and right. Two grooves 81
0,811 are provided. And the groove 8 of the upper horizontal frame material
In order to allow the sealing material 812 fitted to the third frame 3 to be continuously fitted to the outer grooves 810 of the left and right vertical frame members, the two ridges 88, 89 inside each vertical frame member are The upper and lower ends are cut off over an appropriate length.

Further, the sealing material fitted to each frame material is substantially continuous along the entire periphery of the window frame, and is fitted into the groove 83 of the upper horizontal frame material H in order to secure required sealing performance. Sealing material 812
Is formed to be longer than the groove 83, and both ends thereof are located at the upper corners of the window frame, that is, the left and right vertical frame members J1, J
The sealing material which is curved in the longitudinal direction of the vertical frame material at the protruding portion cutout 815 at the upper end of the second, is fitted into the groove 89 outside the vertical frame material, and is fitted into the groove 86 of the lower horizontal frame material S. 813 is similarly formed longer than the groove 86, and both ends thereof are curved in the longitudinal direction of the vertical frame material at the lower corners of the window frame, that is, at the cut-out portions 815 of the convex ridges at the lower end of the vertical frame material. And is fitted into the groove 811 inside the vertical frame member, and further, the vertical frame member J
1 and J2, the upper part of the sealing material 814 is fitted into the inner groove 811, and is shifted to the outer groove 810 through the cutout 816 formed in the central ridge 88 at the middle part, and the lower part is formed into the outer groove 810. The upper end of the vertical seal 814 overlaps with the end of the upper seal 812 on the inside thereof, and the lower end of the vertical seal 814 overlaps the end of the lower seal 813 on the outside thereof. It is. Then, the window frame WF fitted with the sealing materials 812 to 814 as described above.
Fits the fitting portion into the window opening frame, abuts the imposition portion on the outdoor side surface of the window opening portion, and penetrates a screw 817 in each sealing material from the outdoor side of each imposition wall, Further, the sealing member is screwed down to the window opening frame OF which constitutes a part of the building frame, and the sealing material is pressed against the outdoor side surface of the window opening frame and fixed.

[0006]

In the above-mentioned prior art, in order for the screw to penetrate through the sealing material, the sealing material is twisted together with the screw to be rotated, or the sealing material at the screw penetrating portion is compressed more than other portions. Therefore, the tightness of the screw penetration part becomes insufficient, and in order to prevent this, it is necessary to reduce the interval between the screw penetration parts. There was a problem of inviting.

Conventionally, a window frame with a sealing material attached thereto is fixed to a building frame while being pressed against the window frame, and the window frame is drawn inward to bring the sealing material into close contact with the building frame or the outdoor side surface of the window opening frame. There is also known one provided with a pulling means for fixing by being fixed on the indoor side of a building frame. However, the pulling means locks the anchor member to each frame material and applies a pulling force to the locking point. Conventionally, the locking point is provided only at the outdoor end of the frame material. Because the pulling force is not applied to the entire window frame in a well-balanced manner, the window frame is not firmly fixed and easily twisted, and the degree of adhesion to the window opening frame of the sealing material or the outdoor side surface of the building frame occurs. However, there is a limit in improving the sealing performance.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a window frame provided with a sealing material which is in close contact with the outdoor side surface of a building frame, with high stability and high stability. It is to enable to be fixed to a building frame with high sealing performance.

[0009]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a method of forming a sealing material having elasticity, which is mounted on the upper and lower horizontal frame members and left and right vertical frame members of a window frame. In a device for fixing the window frame to the building frame by pressing against an outdoor side surface of a frame, a first engagement edge is provided near a seal material mounting groove for fitting a seal material, and the window opening of each frame material is provided. A window frame provided with a second engagement edge on an outer surface of an intermediate portion of a base wall fitted to the frame, and a first frame of the frame material disposed on an outer peripheral surface side of each frame material of the window frame. Anchor fittings engaged with and fixed to the mating edge and the second engaging edge, and pulling means attached to the indoor side surface of the building frame corresponding to the anchor fittings, respectively, and pulling each anchor fitting in the indoor direction. It is characterized by consisting of. With the above configuration, each pulling means applies pulling force to two points via the anchors at the vicinity of the sealant mounting groove of the imposition portion of the window frame and at the intermediate position of the fitting portion of the window frame. . Therefore, the window frame is drawn with high stability,
In addition, the sealing member is engaged with and pulled near the sealing member, thereby enhancing the sealing performance of the sealing member.

[0010]

Next, an embodiment of the present invention will be described.
Description will be given based on the drawings. FIG. 1 is a longitudinal sectional view of a window to which an imposition type window frame according to the present invention is attached, FIG.
FIG. 3 is a cross-sectional view showing the state of attachment of the anchor to one vertical frame member, FIG. 4 is a perspective view showing the configuration of the anchor, FIG. 5 is a perspective view of a pull-in bracket of the vertical frame, and FIG. FIG. 7 is a perspective view of a main part for explaining a connection structure of a sealant mounting groove and mounting of the sealant at one corner of the frame, and FIG. 7 is a rear view of the window frame in a state where the mounting of the sealant has been completed. 1 and 2, the window frame WF includes upper and lower horizontal frame members H,
Both ends in the longitudinal direction of S are abutted on the upper end and the lower end of the opposing surfaces of the left and right vertical frame members J1 and J2, and as described later, the upper and lower horizontal frame members H and S
The screw is screwed into the frame to assemble it into a rectangular frame. In the same figure, h, s, j1, j2 are:
The upper and lower structural members and the left and right structural members constitute a window opening frame which is continuous in a rectangular shape and integrated with the building frame.

Then, each frame material H, S, J1,
J2 has base walls 1, 3, 5, and 7, and has imposition walls 2, 4, 6, and 8 extending outward from the outdoor end of each base wall with respect to the center of the window opening. ing. The base walls 1, 3, 5, and 7 are continuous in a shallow, substantially rectangular cylindrical shape, and form a fitting portion fitted into the window opening formed by the window opening frame. That is, the inner peripheral surfaces of the base walls 1, 3, 5, and 7 are required to hold fittings such as a fitted glass plate or a sliding door, a sliding door, and a sliding door, depending on the form of the window. A known structure is provided. The illustrated example shows a known structure in the case where the glass plate 9 is fitted in a manner of being fitted and killed. However, since the form of the window is not related to the gist of the present invention, a detailed description is omitted. In addition, the imposition walls 2, 4, 6, and 8 are also formed in a rectangular shape along the vertical plane and constitute an imposition portion that is in contact with the outdoor side surface of the window opening frame.

The imposition walls 2, 4, 6, and 8 have inner surfaces,
That is, when the base wall is fitted to the window opening, the imposition walls 2, 4,
On the side of the surface facing the outdoor side surface of the window opening frame as far as possible with respect to the center of the window opening, there is formed a sealing material mounting groove opened in the inner surface direction. More specifically, each of the frame members H, S, J1, and J2 of the window frame has three parallel ridges 10a, 10 separated in the width direction of the imposition wall.
b, 10c; 11a, 11b, 11c; 12a, 12
b, 12c, two grooves 13i, 13 adjacent to the inside and outside
o; 14i, 14o; 15i, 15o are formed. Then, as described later, one groove is inserted into the inner grooves 13i and 14i of the upper and lower horizontal frame members and the inner grooves 15i of the left and right vertical frame members.
The book sealing member 16 is fitted, and a part of the sealing member 16 is held in a state of protruding slightly outside the opening surface of each groove. The cross-sectional shape of the sealing material 16 is set so as to contact the outdoor side surface of the window opening frame with high adhesion.

The frame members of the window frame include base walls 1, 3,
At the outside of each of the anchors 5, 7,
18, 19 are locked. Each of the anchors has an engagement edge 17a, 17b; 1 at the outdoor end and the middle.
8a, 18b; 19a, 19b, the respective engagement edges of which are formed in the grooves 13i, 14 inside the facing walls 2, 4, 6, 8
i, 15i, the innermost ridges 10a, 11a,
First locking edges 10d, 11d, 12d protruding from 12a
And the second locking edges 21, 22, 23 projecting from the outer surfaces of the base walls 1, 3, 5, 7, and are attached.

The upper and lower anchors 17 and 18 are connected to horizontal frame member pulling means 24 and 25 attached to the indoor side ends of the structural members h and s above and below the window opening frame, respectively.
By operating the pulling means, a desired distance can be drawn indoors. The structure for realizing the pulling means 24, 25 is not particularly limited as long as the pulling means 24, 25 applies a pulling force in the indoor direction to the anchor by a screw pair or a sliding pair using members such as bolts and wedges. An embodiment in which a screw pair is used will be described. Attraction means 24, 25 shown
Is composed of horizontal frame material pulling fittings 24a and 25a and bolts 24b and 25b screwed into the pulling fittings from the indoor side. The pulling fittings 24a and 25a are formed in a U-shaped cross section, and are movably straddled in the indoor and outdoor directions at the indoor side ends of the structural members h and s. Correspondingly,
The pulling means 24,
Hook 17 at its indoor end to connect with
c, 18c are formed, and the hooks 17c, 18c
Is engaged with a lower portion (in the case of the upper horizontal frame material pulling bracket 24a) or an upper portion (in the case of the lower horizontal frame material pulling bracket 25a) of one side of the indoor side of the horizontal frame material pulling brackets 24a, 25a. ing. The bolts 24b, 25b
a, 25a are screwed from the indoor side to the indoor end of the structural materials h, s. And the pulling bolt 24
After turning the shafts b and 25b in a predetermined direction, and the shaft ends of the pulling bolts abut against the indoor side end of the structural members h and s, and continuing to turn harder, the pulling fittings 24a and 25a are pulled in the indoor direction. As a result, the upper and lower horizontal frame members H and S are drawn toward the indoor space via the anchors 17 and 18, respectively, and as a result, the sealing member 1 fitted to the imposition walls 2 and 4.
6 is brought into close contact with the outdoor side surfaces of the structural members h and s.

Reference numeral 26 denotes a pulling means for pulling the vertical frame members J1 and J2. The pulling means 26 includes a pulling bolt 27 screwed into the anchor 19 and a vertical frame member pulling metal fitting 28. As shown in FIGS. 3 and 4, the anchors 19 attached to the left and right vertical frame members j1 and j2 penetrate through a hole 19c provided in the middle part, and the rear surfaces of the base walls of the vertical frame members J1 and J2. 1 screwed into the locking edge 23 projecting from
It is fixed in place by 9d. A pulling bolt 27 is screwed from the indoor side to the outdoor side at the indoor end of the anchor 19. The shaft of the pulling bolt 27 is engaged with a vertical frame member pulling fitting 28 fixed to the vertical structural members j1 and j2. This drawing metal fitting is shown in FIG.
As shown in FIG. 5, in addition to having forked locking portions 28 a and 28 b at both ends in the indoor and outdoor directions, a locking plate 28 c protruding toward the center of the window opening is provided at the indoor end and the locking thereof. The plate 28c has a cutout hole 28d into which the shaft of the pulling bolt 27 is loosely inserted. Then, as shown in FIG. 2, both ends of the vertical structural members j1 and j2 formed of C channels are tightly fitted and fixed to the locking portions 28a and 28b, respectively. Frame material J of window frame fitted to
The shaft portion of the pulling bolt 27 of the anchor 19, which is previously mounted on the back of J1 and J2, is loosely inserted into the notch 28d. Then, the pulling bolt 27 is turned in a predetermined direction,
When the bolts continue to be turned more strongly after the head of the abutment comes into contact with the locking plate 28c, the anchor metal 19 is pulled in the indoor direction.
2 is drawn in the indoor direction, the sealing material 16 fitted to the imposition walls 6 and 8 of the vertical frame material is
2 Close to the outdoor side.

A window frame WF equipped with such a sealing material is
The hooks 17c, 18c of the anchors 17, 18 are connected with the base wall of each frame member fitted into the window opening and the imposition wall of each frame member lightly abutting against the outdoor side surface of the window opening frame. With the bolts 27 of the anchor 19 being engaged with the pull-down fittings 24a, 25a, the notch grooves 28 of the pull-down fitting 28 are formed.
d, each horizontal frame material pulling bolt 2
By rotating the bolts 4b and 25b and the vertical frame material shifting bolt 27 in a predetermined direction, the tip of the sealing material 16 which is fitted in a rectangular shape continuously on the inner surface of the imposition portion is pressed and adhered to the outdoor side surface of the window opening frame. Is done.

In this case, in the present invention, the horizontal frame members H,
All of the ridges 10a, 10b, 10c; 11a, 11b, 11c that form the grooves 13i, 13o; 14i, 14o of the S are extended to the longitudinal ends of the horizontal frame members, but are not limited to the vertical frame members J1, J2. Ridges 12a forming grooves 15i, 15o,
The innermost ridge 12i of 12b and 12c is shown in FIG.
As shown in (a), a cut is made in the vicinity of the longitudinal end of the vertical frame member J2 (it is common to the left vertical frame member J1; therefore, the symbol J is used unless left and right are specified). Have been. Therefore, in this state, each groove 13i,
The space between the end of 13o and the end of each groove 15i, 15o of the vertical frame material is cut off. In order to make the discontinuous groove continuous, in this embodiment, as shown in FIG. 6A, first, the end of the innermost ridge 12a of the vertical frame member J and the horizontal frame member H , S, a groove forming member 29 connecting the ends of the innermost ridges 10a, 11a is mounted on the back surface of the longitudinal end of the base wall 6 of the vertical frame member J. FIG. 6 (a)
6a is a notch formed by cutting off the upper end of the base wall 6 of the vertical frame material at a position facing the groove 13i inside the upper horizontal frame material H, and has the same shape as the cross-sectional shape of the groove 13i. Have. Although not shown, neither the lower end of the base wall 6 of the vertical frame member nor the position corresponding to the groove 14i inside the lower horizontal frame member S
A similar notch is formed.

The first groove forming member 29 is formed on the base wall 6 of the vertical frame member.
And a second contact plate 29b parallel to the imposition wall 8 of the vertical frame member from an end of the first contact plate.
And one end of the second contact plate 29b in the up-down direction (the upper end in the case of attaching the upper corner of the window frame, the lower end in the case of attaching the lower corner).
In addition, a horizontal closing plate 29c having a protruding height equal to the ridges 10a and 11a is provided. Also, the first contact plate 2
9a, a screw penetration hole 29d is provided at a position corresponding to the hole 6b for penetrating the screw 30 screwed from the vertical frame material J into the screw hole (reference number omitted) provided in the horizontal frame material H or S.
Is provided. FIG. 6 shows that the groove forming member 29 can be used in common for both the case where the window frame is used for the fitting window and the case where the window frame is used for the sliding window. 2 shows an example in which a screw through hole is provided at a position corresponding to. Of course, screw through holes corresponding to only the screw holes of each window frame may be provided.

In this manner, the groove forming member 29 has the first contact plate 29a on the back surface of the base wall 6 of the vertical frame member J and the second contact plate 29b on the imposition wall 8 of the vertical frame member. The horizontal frame members H and S are connected to the vertical frame member J by screwing the screws 30 from the screw through holes 29d into the screw holes of the horizontal frame member through the screw through holes 6b of the vertical frame member. The groove forming member 29 is attached. In this case, the groove forming member 2
9 is preferably made of steel because the effect of increasing the connection strength of the vertical and horizontal frame members J, H, S can be obtained.

Subsequently, as shown in FIG. 6B, another groove forming member 31 is fixed to the upper end of the inner surface of the imposition wall 8 of the vertical frame member J. The groove forming member 31 is formed to have an L-shaped or U-shaped cross section, and at least one end has a ridge 10.
b, a horizontal closing plate 31 having a projection height equal to 12b
a. Then, the closing plate 31a is separated from the closing plate 29c of the groove forming member by a parallel interval equal to the width of the groove of each frame member, and the screw 32 is formed from the hole provided at the bottom of the groove forming member 31 into the vertical frame member J. As shown in FIG. 6C, the two groove forming members 2 are fixed by being screwed into the imposition wall 8.
A groove 33 having the same width and depth as the grooves 13i, 15i inside the horizontal frame member and the vertical frame member is formed between the closing plates 29c, 31a of the 9, 31.

In the case where the imposition portion of the vertical frame member J is formed in the shape of a rectangular tube as in the example shown in the figure, as shown in FIG. A screw receiving member made of steel is brought into contact with the back surface of the imposition wall from the portion 8a, and a screw 32 penetrating the groove forming member 31 is screwed into the screw receiving member 3.
4 is screwed into the vertical frame member J of the groove forming member 31.
Can be more reliably fixed to the surface. When the screw receiving member 34 is formed to have an L-shaped cross section, the screw receiving member 34 receives the screw 32 of the groove forming member on its vertical side, and the longitudinal end of the imposed portion of the vertical frame member J on its horizontal side ( A screw 36 for stopping the small cap 35 fitted in the upper end in the case of FIG.
Can also be used to receive

As described above, by attaching the pair of groove forming members 29, 31 to the upper ends of the vertical frame members J1, J2,
As shown in FIG. 6C, at the upper corner of the window frame, the groove 13i inside the upper horizontal frame member H and the vertical frame members J1, J2 are formed.
And a groove 15i formed between the pair of groove forming members 29 and 31 is continuous with the groove 15i. And
As shown in FIG. 7, at the other upper corner and lower corner of the window frame WF, similarly, the pair of groove forming members 29 and 31 having the same shape or symmetric shape similarly form the inner grooves 13i and 13i of the upper and lower horizontal frame members. 14i and the groove 15i inside the vertical frame material are continuous.

Further, preferably, as shown in FIG.
Of the three ridges 12a, 12b and 12c forming the two adjacent grooves 15i and 15o of the vertical frame members J1 and J2, the intermediate ridge 12b is placed on the upper portion of the vertical frame members J1 and J2. Cut the same length at the bottom and the inner groove 15
A communication path 15c that connects the i and the outer groove 15o is formed.

As shown in FIG. 7, the grooves 13i, 14i, and 15i which are continuous over the entire circumference of the window frame as described above include:
One sealing member 16 is fitted and fixed. This sealing material 16
Is formed of an elastic material having neither water permeability nor air permeability, and is fitted so as to protrude from the back surface of each groove so as to go around the inner groove. Exists in the inner groove 15i slightly below one upper corner of the window frame WF, and the other end transitions from the same inner groove 15i to the outer groove 15o via the upper communication path 15c, and the lower end thereof It is terminated so as to overlap the outer end of the upper end of the inner seal.

As described above, the present invention does not particularly limit the structure of the pulling means. The pulling metal fitting is fixed to a building body or a window opening frame or is movably mounted in an indoor / outdoor direction. Any material may be used as long as it acts on the pulling metal fittings or the anchor metal fittings to apply a pulling force in the indoor direction to each frame material of the window frame via the anchor metal fittings.

[0026]

As described above, according to the present invention, since the nailing for attaching the window frame to the building body and the screwing for attaching the anchor metal are not performed, the nailing and the screwing are performed on the frame material. Since there is no need to perform processing for stopping, the processing cost is reduced. Further, since the screw does not penetrate the sealing material, uniform and secure adhesion is ensured over the entire length of the sealing material, and the sealing performance between the window frame and the building vehicle body is improved. Further, since the window frame applies pulling force at two points, that is, the outdoor side and the middle portion in the width direction, the window frame is firmly fixed with high stability. Further, since the vicinity of the sealing material mounting groove is engaged and drawn, high sealing performance is ensured.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a window to which an imposition type window frame according to the present invention is mounted.

FIG. 2 is a transverse sectional view of the same.

FIG. 3 is a cross-sectional view showing an attachment state of an anchor to one vertical frame member.

FIG. 4 is a perspective view showing a configuration of the anchor.

FIG. 5 is a perspective view of a pulling metal fitting for a vertical frame member.

FIG. 6 is an essential part perspective view for explaining a groove connection structure at one corner of a window frame and mounting of a sealing material;

FIG. 7 is a rear view of the window frame in a state where the mounting of the sealing material has been completed.

FIG. 8 is a cross-sectional view of a window to which a window frame is attached using a conventional fixing device.

FIG. 9 is a rear view of the window frame.

[Explanation of symbols]

H, S Upper and lower horizontal frame materials J1, J2 Vertical frame material 1, 3, 5 Imposition wall 2, 4, 6 Base wall 13i, 13o; 14i, 14o; 15i, 15o
Sealing material mounting groove 16 Sealing material 17, 18, 19 Anchor fitting 24, 25 Horizontal frame material pulling means 24a, 25a Pulling metal fitting 24b, 25b Bolt 26 Vertical frame material pulling means 27 Pulling bolt 28 Vertical frame material pulling Metal fittings

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Naoto Fukui 1-11-1, Osaki, Shinagawa-ku, Tokyo Shin Nikkei Co., Ltd. F-term (reference) 2E011 JA01 KB03 KC08 KD01 KD26 KD30 KD34

Claims (1)

[Claims] 1. An elastic sealing material attached to an imposed portion of upper and lower horizontal frame members and left and right vertical frame members of a window frame is pressed against an outdoor side surface of the building body to fix the window frame to the building frame. A first engaging edge is provided in the vicinity of a sealing material mounting groove for fitting the sealing material, and a second engaging edge is provided on an outer surface of an intermediate portion of a base wall of each of the frame members. Said window frame, an anchor which is disposed on the outer peripheral surface side of each frame material of said window frame and is fixed by engaging with a first engagement edge and a second engagement edge of each frame material; A window frame fixing device, comprising: attracting means attached to an indoor side of a building frame corresponding to the anchor fittings, respectively, and attracting each anchor fitting toward an indoor direction.