JP2018016991A - Sill and fitting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sill and a fitting that prevent sagging of the sill and water leakage to a building frame side.SOLUTION: A sill 20 is made of a synthetic resin, and includes a hollow part 200 surrounded with a top surface part 23, an undersurface part 24, an outdoor surface part 25, and an indoor surface part 26. A first reinforcement material 60 disposed along the top surface part 23, and a second reinforcement material 70 having an outdoor side edge part 711 supported swingably in a vertical direction through a fulcrum part 247 are disposed inside the hollow part 200. An adjustment screw 85 is screwed into the first reinforcement material 60, from a hole 231B formed on the top surface part 23. A tip of the adjustment screw 85 is in contact with a portion of the second reinforcement material 70 on the indoor side of the fulcrum part 247. The portion of the second reinforcement material 70 on the outdoor side of the fulcrum part 247 is in contact with an undersurface of the first reinforcement material 60, and the first reinforcement material 60 is in contact with the top surface part 23.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a synthetic resin lower frame and a fitting using the lower frame.

In a joinery such as a sliding window provided with a shoji that can be opened and closed in the joinery frame, a semi-external type joinery in which a part of the joinery frame is arranged on the outdoor side of the frame is known.
In such a joinery, in order to improve the heat insulation performance, when each frame of the joinery frame is formed of a synthetic resin material, the lower frame may hang down due to the weight of the shoji. For this reason, what has arrange | positioned the metal reinforcement in the hollow part of a lower frame is known (for example, FIG. 3 of patent document 1).

FIG. 3 of Patent Document 1 discloses a synthetic resin lower frame, and a metal reinforcing member is disposed in a hollow portion provided between the outer rail and the inner rail. Since the reinforcing material is inserted into the hollow part from the openings at the left and right ends of the lower frame, it is formed slightly smaller than the hollow part, and the clearance (gap) is provided between the reinforcing material and the hollow part only by being disposed in the hollow part. Occurs. When the clearance occurs, the lower frame is lowered by the clearance.
For this reason, in the structure of FIG. 3 of Patent Document 1, a screw is screwed from the lower surface side of the lower frame, the indoor side of the reinforcing material is pulled downward, and the outdoor side is moved upward to contact the upper surface of the hollow portion. Thus, the occurrence of clearance can be prevented.

By the way, in the sliding window, since rainwater blows between the outer rail and the inner rail, it is necessary to provide a drainage path for draining outside the lower frame through the lower frame from between the rails. At this time, in Patent Document 1, since the screw is screwed from the lower surface side of the lower frame, when water enters the hollow portion where the reinforcing material is disposed, there is a possibility that water leaks from the screw portion to the housing side. Moreover, if the water stop process is performed in order to prevent water leakage from the screw portion, the construction work becomes complicated.
For this reason, in patent document 1, it was set as the structure which can arrange | position the outdoor surface part of the hollow part in which a reinforcing material is arrange | positioned indoors rather than an outer rail, and can form a drainage path on the outer side of an outdoor surface part.

Japanese Patent Laying-Open No. 2015-10411

  However, in the structure of FIG. 3 of Patent Document 1, since the reinforcing material is not disposed below the outer rail, the load of the shoji applied to the outer rail cannot be supported by the reinforcing material, and the lower frame hangs down. There is a problem that it cannot be sufficiently prevented.

  An object of the present invention is to provide a lower frame and a fitting that can prevent the lower frame from drooping and prevent water leakage to the housing side.

  The present invention is a synthetic resin lower frame having a hollow portion surrounded by an upper surface portion, a lower surface portion, an outdoor surface portion, and an indoor surface portion, and is disposed along the upper surface portion in the hollow portion. A first reinforcing member and a second reinforcing member disposed below the first reinforcing member are provided, and the second reinforcing member is configured such that an outdoor side end portion can swing vertically through a fulcrum portion. An adjusting screw is screwed into the first reinforcing member from a hole formed in the upper surface portion, and the tip of the adjusting screw is located on the indoor side of the fulcrum portion of the second reinforcing member. The portion of the second reinforcement member on the outdoor side of the fulcrum is in contact with the lower surface of the first reinforcement member, and the first reinforcement member is in contact with the upper surface portion. It is characterized by.

According to the present invention, since the second reinforcing member is supported by the fulcrum so as to be swingable, the tip of the adjustment screw is brought into contact with the position closer to the indoor side than the fulcrum of the second reinforcing member, When the indoor side end of the reinforcing material is moved downward, the outdoor side end of the second reinforcing material moves upward and comes into contact with the lower surface of the first reinforcing material. For this reason, a 1st reinforcement material is pressed on the upper surface part side of the hollow part of a lower frame. Therefore, the upper surface portion and the first reinforcing material abut on each other without clearance, the first reinforcing material and the second reinforcing material abut on each other without clearance, and the second reinforcing material and the lower surface portion abut on the fulcrum portion without clearance. Accordingly, since no clearance is generated between the lower frame, the first reinforcing material, and the second reinforcing material in the hollow portion of the lower frame, it is possible to prevent the lower frame from drooping due to the presence of the clearance.
Moreover, since the adjustment screw is screwed into the first reinforcing member from the upper surface portion of the hollow portion and no screw is provided to penetrate the lower surface portion, water leakage occurs on the housing side when the hollow portion is used as a drainage path. Since there is no need to perform a water stop treatment, construction work is facilitated. Furthermore, since the hollow portion can be used for the drainage path, when the outer rail and the inner rail are provided like the lower frame of the sliding window, the hollow portion is formed from the position of the outer rail to the position of the inner rail to be the first reinforcement. The material can be disposed, and the load of the shoji applied to each rail can be supported via the first reinforcing material and the second reinforcing material.

  In the lower frame of the present invention, it is preferable that the lower surface portion has a mounting portion that is mounted on an upper surface of a housing to which the lower frame is attached, and the fulcrum portion is provided in the mounting portion. .

  According to the present invention, since the placing portion on which the fulcrum portion is formed is placed on the upper surface of the housing, the load applied to the fulcrum portion can be supported by the housing via the placing portion. For this reason, compared with the case where the fulcrum part is provided on the outdoor side of the housing, the load supported by the lower frame itself is reduced, and deformation of the lower frame can be prevented.

  In the lower frame of the present invention, it is preferable that the first reinforcing member is in contact with the upper surface portion by a fixing screw screwed from the upper surface portion.

  According to the present invention, the first reinforcing member can be pulled toward the upper surface portion side with the fixing screw, and therefore, when the second reinforcing member is disposed in the hollow portion, the first reinforcing member does not become an obstacle, and 2 Reinforcing materials can be easily arranged. In addition, it is possible to restrict the movement of the first reinforcing material in the hollow portion of the lower frame by the fixing screw, and it is also necessary for the operator to restrict the movement of the first reinforcing material when arranging the second reinforcing material in the hollow portion. Absent. Therefore, the assembly workability of the lower frame can be improved.

  In the lower frame of the present invention, the outdoor surface portion and the indoor surface portion are respectively formed with guide pieces protruding into the hollow portion, and the outdoor-side end portion and the indoor-side end portion of the first reinforcing member are the top surface. It is preferable that it is arrange | positioned at the recessed part between a part and the said guide piece.

  According to the present invention, since the indoor and outdoor end portions of the first reinforcing member are disposed in the recess between the upper surface portion of the lower frame and the guide piece, the first reinforcing member is placed on the upper surface without using a fixing screw. It can arrange | position along a part. Moreover, also when using a fixing screw, the 1st reinforcement material can be screwed in previously from the state arrange | positioned along the upper surface part, and workability | operativity can be improved.

  In the lower frame of the present invention, the upper surface portion is provided with an outer rail and an inner rail for guiding shoji, and the position of the fulcrum portion in the prospective direction is between the outer rail and the inner rail. preferable.

  According to the present invention, the load of the shoji applied to the outer rail is applied to the portion on the outdoor side of the fulcrum portion of the second reinforcing member via the first reinforcing member. The load of the inner impingement applied to the inner rail is applied from the first reinforcing member to the portion closer to the indoor side than the fulcrum portion of the second reinforcing member through the adjusting screw. For this reason, the load applied from the first reinforcement member to the second reinforcement member by the external shoji and the load applied from the first reinforcement member to the second reinforcement member via the adjustment screw by the internal obstacle can be opposed to each other. It is possible to reliably prevent the lower frame from sagging without floating.

  The joinery according to the present invention includes the joinery frame including the lower frame, the upper frame, and left and right vertical frames, and a shoji provided in the joinery frame.

  According to the present invention, since the lower frame is provided, even in a semi-external fitting, the lower frame can be prevented from drooping and water leakage to the housing side can be prevented.

  According to the lower frame and joinery of the present invention, it is possible to prevent the lower frame from drooping and to prevent water leakage to the housing side.

The interior view of the sliding window which concerns on embodiment of this invention. The longitudinal cross-sectional view of the said sliding window. The longitudinal cross-sectional view of the lower frame of the said sliding window. The longitudinal cross-sectional view which shows the state before droop adjustment of the lower frame of the said sliding window.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In this embodiment, as shown in FIGS. 1 and 2, the sliding window 1 is configured as a resin fitting. The sliding window 1 includes a window frame 2 that is a joinery frame, an outer shoji 3 and an inner shoji 4. In FIG. 2, hatching is omitted for easy viewing of the drawing.

The window frame 2 includes an upper frame 10, a lower frame 20, and left and right vertical frames 30 and 40. The window frame 2 is disposed at the opening of the building and is fixed to the housing 6 of the building.
In the following description, the indoor / outdoor direction of the sliding window 1 is assumed to be a prospective direction, and the horizontal direction of the sliding window 1 in FIG. 20 in the longitudinal direction.

The upper frame 10, the lower frame 20, and the vertical frames 30 and 40 are resin frames made of synthetic resin-made extruded shapes.
The upper frame 10 and the lower frame 20 are formed with outer rails 11 and 21 for guiding the outdoor side shoji 3 and inner rails 12 and 22 for guiding the indoor side shoji 4.

  The outer shoji 3 and the inner shoji 4 are well-known shojis that hold a double-glazed glass framed by a synthetic resin frame, and thus description thereof is omitted.

[Bottom frame]
Next, the lower frame 20 that is a feature of the present invention will be described with reference to FIG. 2 and FIGS. 3 and 4 in which the lower frame 20 is enlarged. 3 and 4, the cross-sectional portion is indicated by hatching. 3 shows a state after adjustment of the hanging of the lower frame 20, and FIG. 4 shows a state before the adjustment.
The lower frame 20 includes an outer rail 21, an inner rail 22, an upper surface portion 23, a lower surface portion 24, an outdoor surface portion 25, an indoor surface portion 26, an outdoor finding surface portion 27, an indoor finding surface portion 28, and an attachment piece portion. 29.
The lower frame 20 is formed with a hollow portion 200 surrounded by the upper surface portion 23, the outdoor surface portion 25, the lower surface portion 24, and the indoor surface portion 26.

The outer rail 21 and the inner rail 22 project upward from the upper surface portion 23 and include outdoor surface portions 211 and 221, indoor surface portions 212 and 222, and connecting piece portions 213 and 223, respectively.
The upper end sides of the outdoor surface portions 211 and 221 and the indoor surface portions 212 and 222 are extended upward from the connecting piece portions 213 and 223. The upper end portions of the outdoor surface portions 211 and 221 protrude to the indoor side, and the upper end portions of the indoor surface portions 212 and 222 protrude to the outdoor side. For this reason, grooves 214 and 224 having openings on the upper surface side are formed on the upper portions of the outer rail 21 and the inner rail 22. Metal rail members 215 and 225 are fitted in the grooves 214 and 224.

The upper surface portion 23 includes an indoor surface portion 212 of the outer rail 21, a first upper surface portion 231 provided between the outdoor surface portion 221 of the inner rail 22, and a first surface portion provided between the outdoor surface portion 211 and the indoor surface portion 212 of the outer rail 21. A second upper surface portion 232, a third upper surface portion 233 provided between the outdoor surface portion 221 and the indoor surface portion 222 of the inner rail 22, and a fourth surface provided between the outdoor surface portion 211 and the outdoor finding surface portion 27 of the outer rail 21. An upper surface portion 234 and a fifth upper surface portion 235 provided between the indoor surface portion 222 and the indoor finding surface portion 28 of the inner rail 22 are provided.
The first upper surface portion 231 and the fourth upper surface portion 234 are inclined so as to become lower toward the outdoor side, and a predetermined water gradient is set.
The thickness dimensions of the second upper surface portion 232 and the third upper surface portion 233 are smaller than the thickness dimensions of the first upper surface portion 231, the fourth upper surface portion 234, and the fifth upper surface portion 235.

The outdoor surface portion 25 and the indoor surface portion 26 are provided between the upper surface portion 23 and the lower surface portion 24. The outdoor surface portion 25 is formed continuously from a position below the outdoor surface portion 211 of the outer rail 21, and the indoor surface portion 26 is formed continuously from a position below the indoor surface portion 222 of the inner rail 22. That is, in the prospective direction of the lower frame 20, the outdoor surface portion 211 and the outdoor surface portion 25 are disposed at the same position, and the indoor surface portion 222 and the indoor surface portion 26 are disposed at the same position.
On the indoor surface of the outdoor surface portion 25, a guide piece 251 projects from the hollow portion 200 side (indoor side). On the outdoor surface of the indoor surface portion 26, a guide piece 261 projects from the hollow portion 200 side (outdoor side).

The outdoor finding surface portion 27 connects between the outdoor side end portions of the upper surface portion 23 and the lower surface portion 24, and further includes a screen door rail portion 271 protruding upward from the upper surface portion 23.
The attachment piece 29 protrudes downward from the intermediate position where the position in the prospective direction is between the outer rail 21 and the inner rail 22 on the lower surface 24. As shown in FIG. 2, the attachment piece 29 is brought into contact with the outdoor surface of the housing 6 and is fixed to the housing 6 with screws 51.

As shown in FIG. 3, the lower surface portion 24 includes a first lower surface portion 241 provided between the outdoor surface portion 25 and the mounting piece portion 29, and a first protrusion protruding upward from the indoor end portion of the first lower surface portion 241. 2 lower surface portion 242, third lower surface portion 243 provided between the upper end of second lower surface portion 242 and indoor surface portion 26, and fourth lower surface portion provided between outdoor surface portion 25 and outdoor finding surface portion 27. 244 and a fifth lower surface portion 245 provided between the indoor surface portion 26 and the indoor finding surface portion 28.
Near the outdoor side end portion of the third lower surface portion 243, there is provided a fulcrum portion 247 formed of a protruding portion that protrudes upward and is formed over the entire length of the lower frame 20 in the longitudinal direction. The position of the fulcrum part 247 in the prospective direction is set between the outer rail 21 and the inner rail 22.
As shown in FIG. 2, since the 3rd lower surface part 243 and the 5th lower surface part 245 are mounted in the upper surface of the housing 6, they comprise a mounting part.

As shown in FIG. 3, the indoor finding surface portion 28 includes a connecting piece portion 281 that connects between the indoor side end portions of the upper surface portion 23 and the lower surface portion 24, and a first protruding upward from the indoor side end portion of the upper surface portion 23. The projecting piece 282, the second projecting piece 283 arranged in parallel to the outdoor side of the first projecting piece 282, and the upper ends of the second projecting piece 283 and the first projecting piece 282 are connected, and further projected to the indoor side. And a mounting piece 285 that protrudes indoors from the lower end of the connecting piece 281.
As shown in FIGS. 2 and 3, a screw 52 to be screwed into the housing 6 is inserted into the attachment piece portion 285, and a screw 53 to be screwed into the frame 7 is inserted into the covering portion 284.

A first reinforcing member 60 and a second reinforcing member 70 are disposed in the hollow portion 200.
The first reinforcing member 60 is a metal plate material, and is disposed over substantially the entire length of the lower frame 20 in the longitudinal direction. The first reinforcing member 60 is disposed along the lower surfaces of the first upper surface portion 231, the second upper surface portion 232, and the third upper surface portion 233, and the outdoor side end portion 61 includes the guide piece 251 and the second upper surface portion 232. The indoor side end portion 62 is disposed in the recess portion between the guide piece 261 and the third upper surface portion 233.
Further, the first reinforcing member 60 is formed with a screw hole at a position corresponding to the hole 231A formed in the first upper surface portion 231, and the fixing screw 81 is screwed into the screw hole. The fixing screws 81 are screwed into the first reinforcing member 60 at a plurality of locations in the longitudinal direction of the lower frame 20. For example, the fixing screw 81 is screwed into the first reinforcing member 60 at two locations on the left and right ends (near the vertical frames 30 and 40) of the first reinforcing member 60.
By screwing the fixing screw 81 into the first reinforcing member 60, the first reinforcing member 60 is attracted to the upper surface part 23 side and is in close contact with the first upper surface part 231. Further, the position of the first reinforcing member 60 in the longitudinal direction is also fixed by the fixing screw 81 to prevent the first reinforcing member 60 from moving in the longitudinal direction.

Further, an adjustment screw 85 is screwed into the first reinforcing member 60 from a hole 231 </ b> B formed in the first upper surface portion 231. The hole 231 </ b> B is larger in diameter than the male screw outer diameter of the adjustment screw 85 and smaller than the outer diameter of the head of the adjustment screw 85.
The adjusting screw 85 inserted into the hole 231B is screwed into a screw hole formed in the first reinforcing member 60 in advance, and the tip of the adjusting screw 85 penetrates the first reinforcing member 60 and protrudes downward. For this reason, when the adjustment screw 85 is screwed into the first reinforcing member 60, the tip (lower end) of the adjustment screw 85 moves downward, and when the adjustment screw 85 is loosened, the tip of the adjustment screw 85 moves upward. The number and arrangement position of the adjusting screws 85 are set according to the longitudinal dimension of the first reinforcing member 60, that is, the dimension in the longitudinal direction of the lower frame 20, and in the present embodiment, each of the lower frame 20 and the first reinforcing member 60. The adjustment screws 85 are arranged at a total of five locations: two in the vicinity of the end, one at the central position in the longitudinal direction, and two at the central position and two intermediate positions between the ends. When the length dimension of the lower frame 20 is shorter than that of the present embodiment, the number of adjustment screws 85 may be reduced, and the number of adjustment screws 85 may be increased as the length dimension becomes longer.

The second reinforcing member 70 is formed by bending a metal plate material, and is disposed over the entire length of the lower frame 20, similarly to the first reinforcing member 60. The second reinforcing member 70 is folded back inward from the plate-like contact portion 71, the bent portion 72 bent downward from the outdoor side end portion of the contact portion 71, and the lower end portion of the bent portion 72. And is formed by bending a plate material by press working or the like.
The expected dimension of the contact part 71 is shorter than the expected dimension between the outdoor surface part 25 and the indoor surface part 26 and longer than the expected dimension of the first lower surface part 241. For this reason, the contact part 71 is arrange | positioned ranging over the 1st lower surface part 241 and the 3rd lower surface part 243 in a prospective direction.
Further, the height dimension of the bent portion 72, specifically, the height dimension from the lower surface of the contact portion 71 to the lower surface of the folded portion 73 is the height from the upper surface of the first lower surface portion 241 to the upper surface of the fulcrum portion 247. The dimensions are substantially the same as the height dimensions.
Further, the expected size of the folded portion 73 is shorter than the expected size of the first lower surface portion 241, and the folded portion 73 is disposed between the outdoor surface portion 25 and the second lower surface portion 242.
Therefore, the second reinforcing member 70 is formed in accordance with the cross-sectional shape of the hollow portion 200, and as shown in FIG. 4, if the first reinforcing member 60 is pulled toward the upper surface portion 23 side, the second reinforcing member 70 is hollow. It can be easily inserted from the end face opening of the portion 200. For example, the second reinforcing member 70 smoothly slides in the hollow portion 200 in a state where the contact portion 71 is in contact with the fulcrum portion 247 and the folded portion 73 is in contact with the first lower surface portion 241. be able to.

  The lower surface of the contact part 71 of the second reinforcing member 70 is in contact with the fulcrum part 247. As shown in FIG. 4, when the contact portion 71 is arranged in a horizontal state, the portion on the outdoor side of the fulcrum portion 247 (the outdoor side end portion 711 of the contact portion 71) is the first reinforcing member 60. The portion closer to the indoor side than the fulcrum portion 247 (the indoor side end portion 712 of the abutting portion 71) is spaced above the third lower surface portion 243. Therefore, the second reinforcing member 70 is supported by the fulcrum portion 247 so that the outdoor side end portion 711 can swing in the vertical direction.

Then, as shown in FIG. 3, when the adjustment screw 85 is screwed and moved downward, the tip of the adjustment screw 85 comes into contact with a portion on the indoor side with respect to the fulcrum portion 247 of the second reinforcing member 70, and the indoor side end portion 712. Is moved downward (to the third lower surface portion 243 side). Then, the outdoor side end portion 711 of the second reinforcing material 70 moves upward (on the first reinforcing material 60 side) and comes into contact with the lower surface of the first reinforcing material 60. That is, in the second reinforcing member 70, the outdoor side end 711 rotates upward and the indoor side end 712 rotates downward with the fulcrum 247 as a fulcrum.
For this reason, the first reinforcing member 60 is pushed to the upper surface part 23 side, the upper surface part 23 and the first reinforcing member 60 abut without clearance, and the first reinforcing member 60 and the second reinforcing member 70 abut without clearance. The second reinforcing member 70 and the fulcrum part 247 are in contact with each other without a clearance.
Therefore, when the external shoji 3 and the internal shoji 4 are installed, the load of the external shoji 3 applied to the outer rail 21 is the upper surface portion 23, the first reinforcing material 60, the second reinforcing material 70, the fulcrum portion 247, and the third lower surface. It is supported by the housing 6 via the part 243.
Since the upper surface portion 23 of the lower frame 20, the first reinforcing material 60, the second reinforcing material 70, and the lower surface portion 24 are in contact with each other without a clearance, the outdoor side of the lower frame 20 is loaded with the external obstacle 3. Therefore, it is prevented from descending by the clearance.

Moreover, the load applied to the outer rail 21 from the external shoji 3 is applied in the direction of pushing the outdoor side end 711 of the second reinforcing member 70 downward, and the indoor side end 712 tends to move upward. The upward movement of the indoor side end 712 is restricted by the adjustment screw 85 that is in contact with the second reinforcing member 70.
Further, a load is applied from the inner shroud 4 to the inner rail 22, and this load is applied in a direction of pushing the indoor side end portion of the first reinforcing member 60 downward, and is screwed to the first reinforcing member 60 in the vicinity of the inner rail 22. The adjustment screw 85 that is being used also moves downward. Therefore, if the external shoji 3 and the internal shoji 4 are installed, the adjustment screw 85 is lowered by the force that rotates the indoor side end 712 of the second reinforcing member 70 upward by the load of the external shoji 3 and the load of the internal shroud 4. Therefore, the lower frame 20 can be prevented from lowering due to the load of the external shoji 3.

When the second reinforcing member 70 contacts the first reinforcing member 60 and the indoor side end 712 of the second reinforcing member 70 does not contact the upper surface portion 23, the adjustment screw 85 is further screwed. Thus, the outdoor side end 711 can be moved upward. Accordingly, the upward movement amount of the outdoor side end portion 711 becomes maximum when the indoor side end portion 712 comes into contact with the upper surface portion 23.
Therefore, in a state in which the external shoji 3 and the internal shoji 4 are installed, from the position where the second reinforcing material 70 contacts the first reinforcing material 60 to the position where the second reinforcing material 70 contacts the third lower surface portion 243. By moving the adjustment screw 85 within the range, it is possible to set the adjustment amount for the drooping of the lower frame 20 on the outdoor side.

  2 to 4, the fixing screw 81 and the adjustment screw 85 are exposed between the outer rail 21 and the inner rail 22, but the cover member is formed using a protrusion formed on the outdoor surface of the outdoor surface portion 221. May be detachably attached to cover the fixing screw 81 and the adjusting screw 85.

[Effect of this embodiment]
(1) Two reinforcing members, a first reinforcing member 60 and a second reinforcing member 70, are disposed in the hollow portion 200 of the lower frame 20, and the first reinforcing member 60 is brought into contact with the upper surface portion 23 to thereby provide a second reinforcing member. Since the material 70 is supported by the fulcrum part 247 and the second reinforcing material 70 is rotated by the adjusting screw 85 and brought into contact with the first reinforcing material 60, the first reinforcing material 60 and the second reinforcing material are formed in the hollow portion 200. There is no clearance between the material 70 and the upper surface 23 and the lower surface 24. For this reason, the lower frame 20 is not lowered by the clearance, and the lower frame 20 can be prevented from falling.

(2) The adjustment screw 85 and the fixing screw 81 penetrate the upper surface portion 23 and are screwed into the first reinforcing member 60, and there is no need to provide a hole in the lower surface portion 24. For this reason, when the rainwater which flowed into the 1st upper surface part 231 is drained to the outdoor side via the hollow part 200, it does not leak from the hollow part 200 to the housing 6 side. Therefore, it is not necessary to perform a water stop treatment, and the construction work of the lower frame 20 is facilitated.
Moreover, it is not necessary to partition separately the hollow part 200 for arrange | positioning the 1st reinforcement material 60 and the 2nd reinforcement material 70, and the hollow part for drainage paths. For this reason, the hollow portion 200 can be provided up to a position below the outer rail 21, and the first reinforcing member 60 and the second reinforcing member 70 can also be arranged at a position below the outer rail 21, and the outer panel member applied to the outer rail 21. 3 can be supported by the first reinforcing member 60 and the second reinforcing member 70.

(3) Since the first reinforcing member 60 is formed in a plate shape and abuts on the upper surface portion 23 of the lower frame 20 in a wide area, the load of the outer screen 3 can be received by the entire surface of the first reinforcing member 60. it can. For this reason, it is possible to prevent deformation such as a load being concentrated on a part of the upper surface part 23 of the lower frame 20 and a part of the upper surface part 23 being recessed.
In addition, although the 1st reinforcement material 60 and the 2nd reinforcement material 70 are line contacts, since it is a contact of metal materials, a deformation | transformation etc. can also be prevented.

(4) Since the fulcrum part 247 with which the second reinforcing member 70 abuts is formed on the third lower surface part 243 which is a placement part placed on the upper surface of the housing 6, the force applied to the fulcrum part 247 is It can be supported by the housing 6 via the third lower surface portion 243. Therefore, when the fulcrum part is provided on the outdoor side of the housing 6, a force is applied in a direction to lower the outdoor side of the housing 6 of the lower frame 20, and a shearing force is applied to the screw 51 of the mounting piece portion 29. Measures such as improving the rigidity of the portion 29 and the screw 51 are required. On the other hand, in this embodiment, the force applied to the fulcrum part 247 can be supported by the housing 6 and is not transmitted to the screw 51, so that it is not necessary to improve the rigidity of the mounting piece part 29 and the screw 51.
Further, when a force is applied from the second reinforcing member 70 to the fulcrum part 247, the fulcrum part 247 is compressed, so that it can support the load without being deformed even if formed on the ridge.

(5) The load applied from the first reinforcing member 60 to the second reinforcing member 70 by the external shoji 3 is opposed to the load applied from the first reinforcing member 60 to the second reinforcing member 70 via the adjusting screw 85 by the inner cover 4. Therefore, the adjustment screw 85 does not float and the lower frame 20 can be reliably prevented from falling.

(6) Since the fixing screw 81 is provided, the first reinforcing member 60 can be reliably pulled toward the upper surface portion 23 side, and the longitudinal position of the first reinforcing member 60 with respect to the lower frame 20 can be fixed. Therefore, even when the first reinforcing member 60 cannot be held by the guide piece 251 or the guide piece 261 due to the dimensional error of the guide pieces 251 and 261 or the first reinforcing member 60, the first reinforcing member 60 is securely held by the fixing screw 81. Can hold.
And since the 1st reinforcement material 60 can be drawn near to the upper surface part 23 side, when arrange | positioning the 2nd reinforcement material 70 in the hollow part 200, the 1st reinforcement material 60 does not become an obstruction, and 2nd The reinforcing material 70 can be easily arranged.
In addition, since the first reinforcing member 60 can be restricted from sliding in the hollow portion 200 by the fixing screw 81, the first reinforcing member 60 can be moved when the second reinforcing member 70 is disposed in the hollow portion 200. There is no need for the operator to regulate. Therefore, the assembly workability of the lower frame 20 can be improved.

(7) Since the second reinforcing member 70 is bent with the contact portion 71, the bent portion 72, and the folded portion 73, the second reinforcing member 70 is more rigid than the case where the second reinforcing member 70 is formed in a flat plate shape. Can be improved. For this reason, the thickness dimension of the 2nd reinforcement material 70 can be made small, and it can also be reduced in weight.

(8) Since the amount of rotation of the second reinforcing member 70, that is, the amount of movement of the outdoor side end 711 in the vertical direction can be adjusted by the screwing amount of the adjusting screw 85, the amount of lowering of the lower frame 20 can be easily adjusted. be able to. Further, since the head of the adjustment screw 85 is exposed on the upper surface portion 23, the adjustment screw 85 can be easily screwed in. Even if the lower frame 20 is lowered after the construction, the adjustment screw 85 is provided. By adjusting again, the lowering of the lower frame 20 can be corrected by a simple operation.

(9) Since the outdoor surface portion 25 and the indoor surface portion 26 are provided below the outer rail 21 and the inner rail 22, the load applied to the rails 21 and 22 can be supported via the outdoor surface portion 25 and the indoor surface portion 26.

[Modification]
In addition, this invention is not limited to the thing of the structure demonstrated by the above embodiment, The modification in the range which can achieve the objective of this invention is contained in this invention.
For example, although the fixing screw 81 is provided in the embodiment, the fixing screw 81 is not necessarily provided. That is, the first reinforcing member 60 can be held on the upper surface portion 23 side by the guide pieces 251, 261, etc., and the adjustment screw 85 is screwed into the first reinforcing member 60, so that the first reinforcing member 60 can be held in the longitudinal direction with respect to the lower frame 20. This is because the position can also be regulated. In this case, the adjustment screw 85 is screwed into contact with the second reinforcing member 70, and the adjustment screw 85 is further screwed in a state where the indoor side end 712 of the second reinforcing member 70 is in contact with the third lower surface portion 243. In this case, the first reinforcing member 60 can be brought into contact with the upper surface portion 23 side.

In the embodiment described above, the fulcrum part 247 with which the second reinforcing member 70 abuts is formed at an upper position of the housing 6, that is, at a position closer to the indoor side than the outdoor surface of the housing 6 in the prospective direction of the lower frame 20. For example, you may form in the outdoor side rather than the housing 6, such as the upper end of the 2nd lower surface part 242.
Further, although the fulcrum part 247 is formed on the lower frame 20, it may be formed on the second reinforcing material 70 side. That is, a protrusion may be provided on the lower surface of the contact portion 71 of the second reinforcing member 70 to form a fulcrum portion.
Furthermore, you may provide the separate fulcrum member in which the fulcrum part was formed between the lower frame 20 and the 2nd reinforcement material 70. FIG. As the fulcrum member, for example, a metal plate placed on the upper surface of the third lower surface portion 243 may be used, and the fulcrum portion of the protrusion may be formed on the upper surface of the metal plate. In addition, the indoor side end portion of the metal plate is bent upward to form a rising portion, and this rising portion is disposed between the indoor side end portion 712 of the contact portion 71 and the indoor surface portion 26. It is preferable to install so that the fulcrum member does not move in the prospective direction.

In the embodiment, the fixing screw 81 and the adjustment screw 85 are disposed on the first upper surface portion 231. For example, the hollow portion 200 of the lower frame 20 is extended to the indoor finding surface portion 28, and the first reinforcing member 60 or The expected size of the second reinforcing member 70 may be a length that reaches a position below the fifth upper surface portion 235, and the fixing screw 81 and the adjustment screw 85 may be screwed in at the position of the fifth upper surface portion 235.
In this case, the force point with which the adjustment screw 85 abuts can be separated from the fulcrum portion 247, and the force applied to the force point can be reduced.

The second reinforcing member 70 is not limited to the above-described embodiment. For example, the second reinforcing member 70 may be formed of an unequal side angle member having an L-shaped cross section including the contact portion 71 and the bent portion 72, or the first reinforcing member. Similar to the material 60, a flat plate may be used.
Further, the first reinforcing member 60 and the second reinforcing member 70 are not limited to those having a length dimension comparable to the longitudinal dimension of the lower frame 20. Two of the two may be prepared and inserted through the openings at the left and right ends of the hollow portion 200, respectively. Note that the first reinforcing member 60 supports the loads of the outer rail 21 and the inner obstacle 22 applied to the outer rail 21 and the inner rail 22, so that the first reinforcing member 60 extends over almost the entire length in the longitudinal direction of the lower frame 20 regardless of the number of installation. It is preferable that they are arranged.
Further, the second reinforcing member 70 is preferably arranged over almost the entire length in the longitudinal direction of the lower frame 20, like the first reinforcing member 60, but is spaced apart along the longitudinal direction of the lower frame 20. A plurality of them may be arranged in the space.

  In the embodiment, the guide pieces 251 and 261 are formed on the outdoor surface portion 25 and the indoor surface portion 26 and the outdoor side end portion 61 and the indoor side end portion 62 of the first reinforcing member 60 are held. When the first reinforcing member 60 can be pulled toward the upper surface portion 23 side, the pair of guide pieces 251 and 261 may not be formed.

  The joinery using the lower frame of the present invention is not limited to a sliding window, and can be used for various fittings such as a sliding window, a FIX window, and a sliding terrace door. Suitable for joinery where the outdoor side of the door may drop due to the load of shoji.

  DESCRIPTION OF SYMBOLS 1 ... Sliding window (joint), 2 ... Window frame (joint frame), 3 ... External shoji, 4 ... Internal shoji, 6 ... Housing, 10 ... Upper frame, 11 ... Outer rail, 12 ... Inner rail, 20 ... Lower Frame, 21 ... outer rail, 22 ... inner rail, 23 ... upper surface portion, 24 ... lower surface portion, 25 ... outdoor surface portion, 26 ... indoor surface portion, 30, 40 ... vertical frame, 60 ... first reinforcing material, 61 ... outdoor side End part 62 ... Indoor side end part 70 ... Second reinforcing material 81 ... Fixing screw 85 ... Adjustment screw 200 ... Hollow part 231 ... First upper surface part 231B ... Hole, 241 ... First lower surface part, 243 ... 3rd lower surface part, 247 ... fulcrum part, 251, 261 ... guide piece.

Claims (6)

A synthetic resin bottom frame,
It has a hollow portion surrounded by an upper surface portion, a lower surface portion, an outdoor surface portion, an indoor surface portion,
In the hollow portion, a first reinforcing member disposed along the upper surface portion and a second reinforcing member disposed below the first reinforcing member are provided,
The second reinforcing member is supported so that the outdoor side end can swing in the vertical direction via a fulcrum,
An adjustment screw is screwed into the first reinforcing member from a hole formed in the upper surface portion,
The tip of the adjustment screw is in contact with a portion on the indoor side of the fulcrum portion of the second reinforcing member,
The portion of the second reinforcement member on the outdoor side of the fulcrum is in contact with the lower surface of the first reinforcement member,
The said 1st reinforcement material is contact | abutted to the said upper surface part. The lower frame characterized by the above-mentioned. In the lower frame of claim 1,
The lower surface portion has a placement portion that is placed on the upper surface of a housing to which the lower frame is attached,
The said fulcrum part is provided in the mounting part mentioned above, The lower frame characterized by the above-mentioned. In the lower frame of claim 1 or claim 2,
The lower frame according to claim 1, wherein the first reinforcing member is brought into contact with the upper surface portion by being pulled toward the upper surface portion by a fixing screw screwed in from the upper surface portion. In the lower frame according to any one of claims 1 to 3,
The outdoor surface portion and the indoor surface portion are each formed with a guide piece protruding into the hollow portion,
The outdoor frame end and the indoor side end of the first reinforcing member are arranged in a recess between the upper surface and the guide piece. In the lower frame according to any one of claims 1 to 4,
The upper surface portion is provided with an outer rail and an inner rail for guiding a shoji,
The position of the prospective direction of the said fulcrum part is between the said outer rail and the said inner rail, The lower frame characterized by the above-mentioned. A joinery frame comprising the lower frame according to any one of claims 1 to 5, an upper frame, and left and right vertical frames,
A joinery comprising a shoji provided in the joinery frame.

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