JP3772109B2 - Sash window frame and reinforcing plate for sash window frame - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement in a sash window frame, in particular, a connection structure between a vertical frame and a horizontal frame.
[0002]
[Prior art]
FIG. 7 shows a lower end portion of a vertical frame of a general sash window frame, in which (a) is an inner side view and (b) is a bottom view. FIG. 8 is a view showing a positional relationship between the sheet-like watertight member interposed between the vertical frame and the lower frame and the lower frame. FIG. 9 is a development view of a reinforcing plate used for connecting a conventional sash window frame, FIG. 10 is an explanatory view of the operation of the reinforcing plate, and FIG. 11 is a connection of a lower portion of a conventional sash window frame using the reinforcing plate. The perspective view which looked at the part from the outdoor side, FIG. 12 is the perspective view similarly seen from the indoor side.
As shown in FIG. 7, the sash window frame is connected to a vertical frame and a horizontal frame by cutting away the protruding edge 12 projecting from the inner surface of the base wall 11 of the vertical frame 1 at the longitudinal end of the vertical frame 1. As shown in FIG. 11 and FIG. 12, the flat surface 13 is formed on the flat surface, and the longitudinal ends of the horizontal frame (generically referred to as the upper frame and the lower frame; the lower frame in FIGS. 11 and 12). , Through the screw through hole 14 (FIG. 7) provided in the vertical frame from the outer surface of the vertical frame 1, that is, the back side of the flat surface 13, and into the screw hole 21 (FIG. 8) of the horizontal frame. Screwed in and connected.
The screw holes 21 of the horizontal frame 2 are usually provided at two locations separated in the indoor / outdoor direction as illustrated in FIG. Therefore, the framed sash window frame is connected to the rectangle with two screws at each of the four corners, that is, at the connection portion between the upper and lower horizontal frames and the left and right vertical frames.
[0003]
However, particularly in the case of a building sash, the sash window frame may be distorted because a large load may be applied from the building frame.
A sheet-like watertight member 3 as shown in FIG. 8 is interposed between the longitudinal end surface of the horizontal frame of the connection portion and the flat surface of the vertical frame so as to ensure watertightness at the connection portion. However, when the window frame is distorted as described above, the amount of compression by the horizontal frame and the vertical frame of the water-tight member 3 is not uniform, and the water-tight performance is deteriorated.
[0004]
In order to prevent such deterioration of the watertight performance of the connecting portion, conventionally, as illustrated in FIGS. 9, 11, and 12, the screw holes 21 of various horizontal frames 2 are formed on the back surface of the base wall 11 of the vertical frame 1. A steel reinforcing plate 4 having a plurality of positionally corresponding screw through holes 41 is provided, and a screw 5 is inserted from the back side of the reinforcing plate to a screw hole 21 of the horizontal frame 2 of the reinforcing plate 4. A sash window frame that penetrates through the screw through hole 14 of the vertical frame 1 and is screwed into the screw hole of the horizontal frame 2 is also known.
[0005]
In FIG. 9, 40 is a flat plate portion having a width slightly smaller than the width of the base wall 11 of the vertical frame, 41 is a screw through hole, and 42 is a guide bent at a right angle provided at both end portions of the flat plate portion. The guide 42 is slidably fitted into the grooves 15 (FIG. 7B) formed on both sides of the back surface of the vertical frame 1 to prevent the guide frame 42 from falling off. Reference numeral 43 denotes a positioning hook that engages with the end portion of the base wall 11 of the vertical frame 1 when the flat plate portion 40 is fitted and slid into the groove 15 of the vertical frame 1, and 44 is a rib.
[0006]
When connecting using such a reinforcing plate 4, when a large force is applied from the housing to the window frame, the force is distributed to the reinforcing plate, so stress concentration around the screw is alleviated. The deformation of the screw through-hole portion is prevented.
[0007]
[Problems to be solved by the invention]
However, the conventional reinforcing plate is made of a thin steel plate, a flat plate portion 40 is brought into contact with the flat surface 13 of the base wall 11 of the vertical frame 1, and the screws 5 are usually attached at two locations separated in the indoor and outdoor directions. As shown in FIG. 9, the tightening force for the peripheral portion of the screw through hole of the vertical frame 1 is very large as shown in FIG. 9, whereas the tightening force for the vicinity of both ends of the vertical frame inside and outside is weak. As a result of the wall 11 being slightly curved, the amount of compression of the watertight member 4 interposed between the horizontal frame and the vertical frame becomes uneven, and in the worst case, the watertight member 4 does not adhere to the vertical frame or the horizontal frame. There is a case. Therefore, the watertightness of the connection part of a horizontal frame and a vertical frame may become incomplete. In the case of a sash window frame, in order to prevent rainwater from penetrating into the outer wall of the frame, watertight performance is particularly important at the indoor side of the connection, but the conventional sash window frame can fully meet this requirement. There was no problem.
[0008]
In order to make the compression amount of the watertight member at the connection part of the vertical frame and horizontal frame uniform across the entire surface, it is considered that the number of screw holes in the horizontal frame should be increased and the number of connection points by screws should be increased. The extrusion mold is expensive, the material consumption of the horizontal frame is increased, and the amount of screw tightening work is increased, which increases production equipment cost, material cost, and window frame assembly cost, making it suitable for practical use. Absent.
[0009]
Thus, the first problem of the present invention is that in a sash window frame in which a vertical frame and a horizontal frame are connected with a watertight member interposed therebetween, the amount of compression of the watertight member is made uniform over the entire surface. It is to ensure high watertightness at the connecting portion of the horizontal frame.
The second object of the present invention is to provide a reinforcing plate suitable for use in the sash window frame.
[0010]
[Means for Solving the Problems]
In order to solve the first problem, the invention of claim 1 is provided with a reinforcing plate having a plurality of screw through holes corresponding to the screw holes of various horizontal frames on the back side of the base wall of the vertical frame. The screw through the screw through hole of the vertical frame and the screw through hole of the vertical frame, and screw the screw into the screw hole of the horizontal frame from the back side of the reinforcing plate. A sash window frame in which a sheet-like watertight member interposed between the horizontal frame and the horizontal frame is compressed and closely connected to each other at or near both indoor and outdoor ends of the reinforcing plate in the direction of the base wall of the vertical frame Protruding protrusions are provided, or protruding parts protruding in the direction of the reinforcing plate are provided at or near both ends in the width direction of the base wall of the vertical frame, and screws that penetrate the screw through holes are screwed into the screw holes. Sometimes, the reinforcing plate is Curved so as to be convex in the direction of the base wall of the vertical frame, the periphery of the screw through hole through which the screw of the reinforcing plate is penetrated and the convex portion are compressed by the compression amount of the watertight member through the base wall. It is characterized by being almost uniform over the entire surface.
With the above configuration, when the screw is passed from the required screw through hole of the reinforcing plate to the screw through hole of the base wall of the vertical frame and screwed into the screw hole of the horizontal frame in a normal manner, the vertical plate and the horizontal frame are connected. A horizontal frame on the base wall of the vertical frame at the peripheral part of the screw through hole through which the screw is penetrated and the peripheral part of the convex portion provided at or near the indoor outside both ends of the base wall of the reinforcing plate or vertical frame The clamping force is applied with a substantially equal force between the longitudinal end surfaces of the two. Therefore, the watertight member is compressed in a substantially uniform amount over the entire surface.
[0011]
In order to solve the second problem, the invention of claim 3 has a plurality of screw through holes, and is attached to the outer side surface of the base wall of the vertical frame, from the screw through hole to the base of the vertical frame. In a reinforcing plate used for screwing a screw penetrating a wall into a screw hole of a horizontal frame and connecting the vertical frame and the horizontal frame with a watertight member interposed therebetween, the indoor and outdoor ends or the vicinity thereof Protrusions projecting in the direction of the base wall of the vertical frame are formed, and the projecting amount of the convex portions is such that the reinforcing plate cooperates with the longitudinal end surface of the horizontal frame via the screwed screws. The fastening force applied to the base wall is set to be substantially equal in the peripheral portion of the screw through hole of the reinforcing plate and the peripheral portion of the convex portion.
With the above configuration, when the screw is passed from the required screw through hole of the reinforcing plate to the screw through hole of the base wall of the vertical frame and screwed into the screw hole of the horizontal frame in a normal manner, the vertical plate and the horizontal frame are connected. The peripheral portion of the screw through-hole through which the screw is penetrated and the convex portions at the indoor outside both ends of the reinforcing plate or in the vicinity thereof compress the watertight member between the horizontal frame through the base wall of the vertical frame. Therefore, the watertight member interposed between the base wall of the connected vertical frame and the longitudinal end surface of the horizontal frame is compressed almost uniformly over the entire surface.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a development view of a reinforcing plate for connecting a sash window frame according to the present invention, FIG. 2 is an explanatory view of the operation of the reinforcing plate, and FIG. 3 is a case where a vertical frame and a horizontal frame are connected using the reinforcing plate according to the present invention. The perspective view which looked at the connection part of FIG. 4 from the outdoor side, FIG. 4 is the perspective view similarly seen from the indoor side. The same reference numerals are used for the same or corresponding members as those of the related art shown in FIG.
[0013]
The reinforcing plate 4 according to the present invention has a flat plate portion 40 having a width slightly smaller than the width of the base wall of the vertical frame and a horizontal frame, that is, a height substantially equal to the height of the lower frame and the upper frame. The flat plate portion 40 is formed with a screw through hole 41 that is positioned to coincide with any of the screw holes provided in the various horizontal frames 2. Further, when the reinforcing plate 4 is fitted into the grooves 15 formed at both ends in the width direction of the vertical frame 1 and slid in the longitudinal direction, the reinforcing plate 4 is engaged with the longitudinal end portion to position the reinforcing plate 4. A hook 43 is provided for carrying out the operation. These are all in common with the conventional reinforcing plate 4 of FIG.
[0014]
However, the reinforcing plate 4 according to the present invention is attached to the outer surface of the base wall 11 of the vertical frame 1 at both ends in the width direction of the flat plate portion 40, that is, both ends in the indoor / outdoor direction (or the vicinity thereof, the same applies hereinafter). A protrusion protruding in the direction of the base wall (including a protrusion continuous in the height direction of the reinforcing plate and a plurality of protrusions spaced apart in the same direction as in the illustrated example). Same in this specification.) 45 is provided. The protrusion amount of the convex portion 45 from the flat plate portion 40 is important for achieving the intended purpose of the present invention, as will be described later.
[0015]
The reinforcing plate according to the present invention is not different from the conventional reinforcing plate in the mounting method to the vertical frame 1 and the screwing method of the screw. That is, the reinforcing plate 4 is fitted from one end in the longitudinal direction of the vertical frame 1 to the grooves 15 at both ends in the width direction of the base wall 11 of the vertical frame, and is slid in the other end in the longitudinal direction of the vertical frame. The hook 43 is engaged and positioned with the end of the base wall 11 of the vertical frame 1, the longitudinal end of the horizontal frame 2 is butted against the flat portion 13 of the longitudinal end of the vertical frame, and each screw hole 21 is aligned with the vertical frame. 1 screw through hole 14. In this state, the flat plate portion 40 of the reinforcing plate 4 maintains a flat state as shown in FIG.
[0016]
Then, the screw 5 passes through the screw through hole of the vertical frame 1 from the screw through hole that matches the screw hole of the reinforcing plate 4 and is further screwed into the screw hole of the horizontal frame 2 strongly. At this time, the flat plate portion 40 of the reinforcing plate is elastically deformed as a whole while the convex portions 45 at both ends in the width direction of the reinforcing plate are pressed and adhered to the base wall 11 of the vertical frame, and the base wall 11 of the vertical frame 1 is thus deformed. Slightly curved so that the side becomes a convex surface, and the periphery of the screw through hole 41 through which the screw of the flat plate portion passes is closely attached to the base wall 11 of the vertical frame. That is, the reinforcing plate 4 is strongly pressed and adhered to the base wall 11 of the vertical frame at the peripheral portions of the plurality of screw through holes and the peripheral portions of both end portions. And the protrusion amount of the convex part 45 is the base wall 11 of the vertical frame between the reinforcement board and the longitudinal direction end surface of a horizontal frame by screwing of the bis | screw 5, and the peripheral part of a screw through-hole and the width direction both ends of a reinforcement board It is set so that substantially the same tightening force is applied in the peripheral part of. The specific value of the protruding amount varies depending on the width dimension and rigidity of the reinforcing plate. Thus, the base wall of the vertical frame compresses the water-tight member 3 with the end face of the horizontal frame 2 with an equal force over a wide area, so that the amount of compression of the water-tight member 3 is uniform over the entire surface. As a result, a high water tightness was obtained at the connecting portion between the vertical frame 1 and the horizontal frame 2.
[0017]
The sash window frame in which the vertical frame 1 and the horizontal frame 2 are connected using the reinforcing plate 4 is uniformly compressed along the facing surface between the flat surface 13 of the vertical frame and the longitudinal end surface of the horizontal frame. Since the water-tight member 3 is interposed, the water-tight performance of the connection portions at the four corners is remarkably improved as compared with the conventional product.
[0018]
FIG. 5 shows a sash window frame that does not use a reinforcing plate, a sash window frame that uses a conventional reinforcing plate 4 in the connecting structure of the lower frame 2 and the vertical frame 1 as shown in FIG. It is a graph which contrasts and shows the compression amount of the watertight member 3 in each of the sash window frame using the reinforcement board 4. FIG. 5 are positions a to k in FIG. 8. The horizontal axis in FIG. 5 is the distance from the outdoor side end of the lower frame.
[0019]
As shown in FIG. 5, in the case of a sash window frame without a reinforcing plate, the amount of compression of the watertight member is about 0.7 in the outdoor side portion, whereas it is about 0 in the vicinity of the two screw screwed portions. .8 is the maximum, but the middle part of the screw screw part is relatively small at 0.6, and the indoor part is 0.5-0.2 extreme compared to the indoor screw screw part, which is highly important for watertight performance. It is getting smaller. That is, the nonuniformity of the compression amount is remarkable, and it is clear from this point that the watertightness of the sash window frame that does not use the reinforcing plate is low.
In addition, the conventional reinforcing plate is 0.6 for the outdoor side portion, 0.8 for the vicinity of the outdoor screw screw portion, and gradually decreases to the vicinity of the indoor screw screw portion, 0.7 for the vicinity of the indoor screw screw portion, From the indoor side screwed portion to the indoor side end portion, it rapidly decreases to 0.4. Thus, it is apparent that even with a connection structure using a conventional reinforcing plate, the degree of non-uniformity in the compression amount of the watertight member is large and sufficient watertightness cannot be obtained.
[0020]
On the other hand, the reinforcing plate 4 according to the present invention provided with the convex portion 45 was measured for the amount of watertight compression with respect to three types of projections of the convex portion of 1.0 mm, 2.0 mm, and 2.3 mm. .
In the case of 2.0 mm, as shown in FIG. 5, the outdoor side end portion and the indoor end portion have large compression amounts of 0.9 and 0.8, respectively, but in the middle portion 0.4 to 0.8 It fluctuates greatly and is uneven.
Moreover, in the case of a protrusion amount of 2.0 mm, it is between 0.7 and 0.8 from the outdoor side end part to the vicinity of two screw screwed parts, and high uniformity is recognized. Even if it is hung from the inside screwed part to the indoor side end, it gradually decreases from 0.6 to 0.4, but it is sufficiently larger than the case without a reinforcing plate, and more than the case of using a conventional reinforcing plate. large.
On the other hand, when the protruding amount of the convex portion is 1.0 mm, the amount of compression is not only in the vicinity of the two screwed portions, but also in the intermediate portion, the outdoor side end portion, and the indoor side end portion. It was found to be between 0.6 and 0.8 and very uniform. That is, when using a reinforcing plate having a protrusion amount of 1.0 mm and front and rear projections, high water tightness is secured at the connecting portion between the vertical frame and the horizontal frame.
[0021]
In order to uniformly compress the watertight member over the entire width of the base wall of the vertical frame by the peripheral portion of the screw through hole of the reinforcing plate and the peripheral portion of both ends, the reinforcement is performed as in the above embodiment. Instead of providing the projections on the plate, as another embodiment, as shown in FIG. 6, the projections 16 projecting in the reinforcing plate direction at or near both ends in the width direction of the base wall 11 of the vertical frame. Even in the case of providing the same effect as the previous embodiment. When providing such a convex part in a vertical frame, it is also possible to use a conventional product as shown in FIG.
[0022]
The above has described only the connection portion between the vertical frame and the horizontal frame when the horizontal frame is the lower frame, but it is easily understood that the same effect can be obtained when the horizontal frame is the upper frame. .
[0023]
【The invention's effect】
As described above, according to the invention of claim 1, the reinforcing plate has a vertical frame in the peripheral portion of the screw through hole through which the screw passes and in the peripheral portion of both ends of the reinforcing plate or the base wall of the vertical frame. Since the watertight member interposed between the base wall of the vertical frame and the longitudinal end surface of the horizontal frame is uniformly compressed over the entire length, the vertical frame of the sash window frame is And the water tightness of the connecting part of the horizontal frame is remarkably improved.
[0024]
Further, according to the invention of claim 3, since the compression amount of the watertight member can be made uniform over the entire surface only by providing the protrusions having the required protrusion amount at both ends in the width direction of the reinforcing plate, the sash Since it is not necessary to add a new element to the window frame, there is an advantage that the cost of the sash window frame is not increased.
[Brief description of the drawings]
FIG. 1 is a development view of an example of a reinforcing plate used for connecting a sash window frame according to the present invention.
FIG. 2 is an operation explanatory view of the reinforcing plate.
FIG. 3 is a perspective view of a connecting portion viewed from the outdoor side when a vertical frame and a horizontal frame are connected using a reinforcing plate according to the present invention.
FIG. 4 is a perspective view similarly viewed from the indoor side.
FIG. 5 is a graph showing, in contrast, measured values of the compression amount of the watertight member in various sash window frames.
FIG. 6 is a cross-sectional view showing another embodiment of the present invention.
FIG. 7 shows a lower end portion of a vertical frame of a general sash window frame, in which (a) is an inner side view and (b) is a bottom view.
FIG. 8 is a diagram showing a positional relationship between a sheet-like watertight member interposed between a vertical frame and a lower frame and the lower frame.
FIG. 9 is a development view of a reinforcing plate used for connecting a conventional sash window frame.
FIG. 10 is an explanatory diagram of the function of the reinforcing plate.
FIG. 11 is a perspective view of a lower connecting portion of a sash window frame using the reinforcing plate as viewed from the outdoor side.
FIG. 12 is a perspective view similarly viewed from the indoor side.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Vertical frame 2 Horizontal frame 3 Watertight member 4 Reinforcement board 40 Flat plate part 41 Screw through-hole 45 Convex part (protrusion)

Claims (4)

A reinforcing plate having a plurality of screw through-holes corresponding to the screw holes of various horizontal frames is attached to the back side of the base wall of the vertical frame, and screws are connected from the back side of the reinforcing plate to the horizontal frame of the reinforcing plate. The sheet-shaped watertight member interposed between the vertical frame and the horizontal frame is compressed by screwing into the screw through-hole of the vertical frame and screwing into the screw through-hole of the vertical frame. In the sash window frame that is connected in close contact with each other, convex portions projecting in the direction of the base wall of the vertical frame are provided at or near both indoor and outdoor ends of the reinforcing plate, or the width direction of the base wall of the vertical frame Protrusions protruding in the direction of the reinforcing plate are provided at both ends or in the vicinity thereof, and when the screws penetrating the screw through holes are screwed into the screw holes, the reinforcing plate is moved in the direction of the base wall of the vertical frame due to material elasticity. Curved so as to be a convex surface, The sash is characterized in that the compression amount of the watertight member is substantially uniform over the entire surface of the periphery of the screw through hole through which the screw of the strong plate is penetrated and the convex portion through the base wall. Window frame. 2. The sash window frame according to claim 1, wherein the convex portion is a ridge that is continuous in the height direction of the reinforcing plate or the vertical frame or a projection that is scattered. The vertical frame has a plurality of screw through holes and is attached to the outer side surface of the base wall of the vertical frame, and screws that penetrate the base wall of the vertical frame from the screw through holes are screwed into the screw holes of the horizontal frame. And a reinforcing plate used to connect the horizontal frame with a watertight member interposed therebetween, and convex portions protruding in the direction of the base wall of the vertical frame are formed at or near both indoor and outdoor ends, The amount of protrusion of the protrusion is determined by the tightening force applied to the base wall of the vertical frame by the reinforcing plate in cooperation with the longitudinal end surface of the horizontal frame via the screwed screw. The reinforcing plate for a sash window frame according to claim 1, wherein the reinforcing plate is set to be substantially equal in a portion and a peripheral portion of the convex portion. The sash window frame reinforcing plate according to claim 3, wherein the convex portion is a ridge or dotted projection continuous in the height direction of the reinforcing plate.

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