JP4363202B2 - Waterproof structure of the base of the handrail support on the external floor such as a balcony - Google Patents

Description

  The present invention relates to a waterproof structure for an external floor such as a balcony provided so as to project outside a building body, and particularly relates to a waterproof structure for a base portion of a handrail column.

  Conventionally, at the end of the balcony floor opposite to the building body, a waterproof cover is provided along the end so that water such as rainwater does not enter the back side of the floor. In this case, the handrail support column protrudes upward through the opening formed in the waterproof cover. Such a thing is described also in the following patent document 1.

Japanese Patent Laid-Open No. 5-44316

  However, in the above-mentioned conventional device, the opening portion of the waterproof cover through which the handrail post penetrates is not subjected to a special water effect, and there is a drawback that rainwater enters from the gap between the opening portion and the handrail post. It was.

  For this reason, there has been a problem that the rainwater that has come to the back side causes rust to occur on the metal members such as the handrail post fixing portion and the floor frame, or falls downward from the ceiling of the eaves.

  The present invention provides a waterproof structure for the base of the column that eliminates the conventional drawbacks and is excellent in water performance that prevents rainwater from entering from the opening of the waterproof cover through which the handrail column penetrates. It was made for the purpose.

In order to solve the above problems, the present invention covers the outside of the main body part of the external floor such as a balcony with an external cover, covers the space between the external cover and the main body part from above with a waterproof cover, and In the case where the handrail struts are lifted upward through the cover, a waterproof cap lined with a watertight material covers the upper surface of the waterproof cover so as to be externally fitted to the handrail struts, and this waterproof cap The outer fitting portion to the handrail support columnar is a short cylindrical shape rising above the upper surface of the cap .

  In the above, the invention of claim 2 provides the waterproof cap fixed to the waterproof cover or the member on the back thereof by a screw member inserted from above via a rubber washer. Then, the screw member is a flanged bolt.

Furthermore, in the invention of claim 4, the handrail support column is fixed to the frame of the external floor below the waterproof cover.

  According to this invention, since the opening of the waterproof cover through which the handrail support penetrates is covered with the waterproof cap lined with the watertight material on the back surface, rainwater can be prevented from entering the back surface side from the opening. . And thereby, one of the cause of the rust of the metal member of a back side and the cause of the fall of the water from the eaves back ceiling can be eliminated.

  Further, by tightening the screw member for fixing the waterproof cap through a rubber washer, it is possible to prevent the intrusion of rainwater from the gap of this portion.

  Furthermore, by making the outer fitting portion of the waterproof cap to the handrail support column into a tubular shape, it is possible to further prevent rainwater from entering.

  FIG. 1 is an exploded perspective view showing a schematic structure of an attached balcony, and shows a corner portion of a building body (1). (2) is a beam of the building body (1), which is made of H-section steel as shown in the figure. (3) and (4) are a pair of upper and lower outer wall panels attached to the outside of the beam (2).

  (6) is a balcony floor frame. As a specific example, as shown in this figure, a building body (1) a pair of horizontal frames (7) and (8) parallel to the outer wall surface, and these horizontal frames (7 ) (8) and a plurality of crosspieces (9), (9)... The horizontal frames (7) and (8) parallel to each other are made of lip channel steel, and the horizontal frame (7) on the side of the building body (1) has its groove (10) facing outward as shown in FIG. Thus, the other horizontal frame (8) is arranged so that the groove (10) faces inward. A large number of crosspieces (9) and (9) arranged between the horizontal frames (7) and (8) are made of channel steel without a lip.

  When constructing the balcony, first, the floor frame (6) is fixed to the building body (1) so as to protrude outside the outer wall panels (3) and (4). Although the mounting structure is not shown, it is fixed using, for example, an arm that protrudes from the frame of the building body (1) through a vertical joint portion (not shown) of the outer wall.

  A base plate (12) is installed and fixed on the upper surface of the floor frame (6) before or after the floor frame (6) is attached. The base plate (12) is preferably a plywood having a predetermined thickness.

Further, the lower frame (11) of the handrail support column (5) is fixed to the outer side surface of the lateral frame (8) on the side not facing the outer wall panel (3) (4) side, and the handrail A support column (5) is provided protruding upward . (13) is preferably a waterproof pan made of a steel plate, which is installed on the upper surface of the base plate (12), and has a side wall (15) on the outer periphery of the four sides of the quadrilateral bottom (14). Is up.

  (16) shows a rising support wall installed so as to overlap the outside of the side wall (15) of the waterproof pan (13). (17) is a waterproof covering the gap (20) (FIG. 3) between the wall-side waterproof wall composed of the side wall (15) and the rising support wall (16) and the outer wall surface (19) of the building body from above. It is a cover. Next, details of the waterproof structure near the wall will be described with reference to FIGS.

  The rising support wall (16) basically has an L-shaped cross section composed of a vertical portion (21) and a lower horizontal portion (22) at the lower end of the vertical portion (21). ) Is provided with an upper support piece (23) protruding in the opposite direction to the lower horizontal portion (22).

  The lower horizontal portion (22) has a bent cross-sectional shape that forms a concave portion (22a) along the longitudinal direction at the center of the upper surface in the width direction. The rising support wall (16) is connected to the upper surface of the end of the base plate (12) on the side of the building body (1) by a fixing tool (24) such as a screw inserted into the recess (22a) from above. It is fixed along the part. At this time, the upper support piece (23) is on the wall side, and the lower horizontal part (22) is on the opposite side.

  The waterproof pan (13) is installed so as to cover the lower horizontal portion (22) after the rising support wall (16) is attached. A heat insulating material (25) made of foamed resin or the like is provided on the back side of the bottom (14) of the waterproof pan (13). In FIG. 1, the entire waterproof pan (13) is shown as an integral unit, but it may be divided into a plurality of units.

  With the rising support wall (16) and the waterproof pan (13) attached, the vertical portion (21) of the support wall (16) overlaps the outer surface of the side wall (15) of the waterproof pan (13). Is in contact with Also, the upper end of the side wall (15) of the waterproof pan (13) is provided with a water return piece (26) that protrudes inward by bending inward (center side of the balcony floor) as shown in the figure. ing. There is a step between the upper surface of the water return piece (26) and the upper surface of the upper support piece (23) of the rising support wall (16) so that the upper support piece (23) side becomes higher.

  In the vertical portion (21) of the rising support wall (16), a flange (29) along the horizontal direction is integrally formed in the vicinity of the lower end portion of the surface facing the outer wall surface (19). . This ridge (29) is released upward from the surface of the vertical portion (21) by integrally forming a portion (28) protruding like a ridge from the surface of the vertical portion (21). It has a groove shape.

  As shown in FIG. 3, a lateral joint portion (18) between the outer wall panels (3) and (4) is located on the outer wall portion of the building body (1) at a position slightly lower than the upper end of the vertical portion (21). ing. The collar (29) is further located below the horizontal joint (18).

  (31) is a horizontal draining material provided so as to protrude from the inside of the outer wall panels (3) and (4) to the outer wall surface (19) side through the horizontal joint portion (18). The outer tip of the horizontal draining material (31) on the outer wall is bent downward, and the flange (29) is positioned below the bent tip (32). Note that (33) is a cover piece projecting downward from the lower surface of the flat water cutting material (31).

  In the above, the rising support wall (16) is preferably an extrusion of aluminum or the like in a state where the vertical portion (21), the lower horizontal portion (22), the upper support piece (23) and the flange (29) are integrated. Although formed integrally by molding or the like, it is not limited to this.

  The outer wall panels (3) and (4) are composed of a siding material (35) constituting the outer wall surface (19) and a grooved frame material (36) attached to the back surface of the siding material. (37) is a frame frame arranged along the upper surface or the lower surface of the beam (2), and is made of grooved steel with a lip as shown in the figure. The outer wall panels (3) and (4) Although it is supported through the assembly frame (37), its details are omitted. Further, the horizontal draining material (31) is attached by engaging its inner end and the tip of the cover piece (33) with the joint fitting (30) of FIG. 3 fixed to the beam (2) or the like. The details are also omitted.

  The waterproof cover (17) has an upper surface (40) whose top surface is horizontal or slightly inclined downward toward the balcony floor, and projects downward from the tip of the top surface (40) of the balcony floor at the center side. And a front surface portion (41). Further, a mounting piece (42) is provided projecting upward at the tip of the upper surface (40) opposite to the front surface (41) side. The upper end of the mounting piece (42) is bent in the same direction as the upper surface part (40), and a flange piece (43) having a vertical section protrudes upward at the tip of the bent piece (39). Is provided.

  Further, a watertight material (44) having elasticity is provided in advance on the back surface of the upper surface portion (40) at a position near the front surface portion (41). This stretchable watertight material (44) is preferably made of a resin foam having a structure of independent or continuous foaming (a structure in which bubbles are crushed and the cavities are not connected when compressed). It is adhered to the back surface of the upper surface portion (40) along the longitudinal direction.

  On the other hand, a fin-like packing (45) is provided on the back surface of the front surface portion (41) so as to protrude in the horizontal direction at a position near its lower end. The fin-like packing (45) is made of a flexible material such as rubber or other soft material, and gradually becomes thinner toward the tip to increase flexibility. In addition, a flange-shaped mounting portion (46) is integrally formed at the base portion on the front surface portion (41) side, and is inserted into a mounting groove (47) formed on the back surface of the front surface portion (41). The part (41) is attached over substantially the entire length in the longitudinal direction.

  The waterproof cover (17) having the above configuration is installed from above so as to close the side wall (15) of the waterproof pan (13) and the gap between the rising support wall (16) and the outer wall surface (19). Is done. And it fixes to the outer surface of the lower end of the outer wall panel (3) of an upper side with the bis | screw (48) and other fixing tools inserted through this attachment piece (42) from the outer side of an attachment piece (42).

  At this time, the front surface portion (41) faces the inner surface of the side wall portion (15). The fin-like packing (45) at the lower end is in contact with the vertical portion (21) of the rising support wall (16). At that time, the fin-like packing (45) is in elastic contact with its tip bent upward.

  On the other hand, as shown in the figure, the upper surface portion (40) is placed on the upper surface of the upper support piece (23) at the upper end of the vertical portion (21) at the wall side of the watertight material (44). In this state, the water-tight material (44) is strongly pressed against the upper surface of the water return piece (26) at the upper end of the side wall (15) and is held in a compressed state, whereby the side wall (15) and the upper surface ( 40) is sealed.

  The upper side of the mounting piece (42) is filled with a wet sealing material (49) into a groove formed by the horizontal bent piece (39), flange piece (43) and outer wall surface (19) at the upper end. is doing.

  In the above waterproof structure, even if heavy rain or water during cleaning accumulates on the balcony floor consisting of the waterproof pan (13) and overflows to the wall side, the waterproof cover (17) is also provided, and the waterproof cover ( Since the space between 17) and the outer wall surface (19) is sealed with the sealing material (49), water does not leak over the waterproof cover (17) to the back of the eaves.

  Furthermore, the water which tries to rise upward from between the front surface part (41) and the side wall part (15) of the waterproof cover (17) is first blocked by the fin-shaped packing (45). Even if a large amount of water is rushed at the same time, even if a part of the fin-shaped packing (45) passes through the tip of the fin-like packing (45) and enters the upper gap (50), the water return piece It is dropped downward by (26). And even if it still turns around to the upper part side of the water return piece (26), since the watertight material (44) seals the gap, it is almost completely prevented from going around to the back side.

  The above is a water finish on the side of the outer wall surface (19) of the balcony floor. Next, a waterproof structure on the handrail side that does not face the wall will be described.

  As shown in FIGS. 4 and 6, on the handrail side, the outer surface of the side wall portion (15) of the waterproof pan (13) is substantially flush with the outer surface of the horizontal frame (8) of the floor frame (6). In such a state, it stands up. At the middle portion of the handrail support (5) fixed to the horizontal frame (8), at the position corresponding to the upper end of the side wall (15), this L-shaped receiving plate (55) is seen horizontally. The handrail support column (5) is fitted to the notch of the portion (56). As shown in FIG. 1, the receiving plate (55) is attached in advance to the handrail support column (5).

  The outer surface of the side wall portion (15) is superimposed on the surface of the vertical portion (57) projecting downward from the inner end of the horizontal portion (56), and this vertical portion (from the inner side of the waterproof pan (13) ( The side wall (15) is fastened to its vertical part (57) by means of a screw (58) preferably screwed into 57). At this time, the upper surface of the horizontal portion (56) is slightly higher than the upper surface of the water return piece (26) at the upper end of the waterproof pan (13).

  A decorative cover (60) is attached to the side opposite to the side wall (15) with the handrail support (5) interposed therebetween. The decorative cover (60) covers the floor frame (6), the side wall (15), and the bottom of the handrail support (5) to the lower surface of the horizontal frame (8). The decorative cover (60) is supported by engaging the engaging groove (61) on the back surface thereof with the L-shaped receiving piece (59a) of the bracket (59) fixed to the outer surface of the handrail support column (5). Has been.

  (65) is another waterproof cover attached to the handrail side not facing the wall with respect to the waterproof cover (17) attached to the wall side. The handrail-side waterproof cover (65) includes an upper surface portion (62) and a front surface portion (63) protruding downward from one end of the upper surface portion. Further, an outer cover piece (64) is integrally formed at the end opposite to the front face portion (63) so as to protrude downward.

  The handrail-side waterproof cover (65) formed as described above has the front surface portion (63) facing the inner surface of the side wall portion (15), and the outer cover piece (64) at the upper end of the decorative cover (60). It is installed from above so as to face the outer surface. Thereby, the clearance gap between a side wall part (15) and a decorative cover (60) is covered from upper direction by this waterproof cover (65).

  At that time, an opening (67) through which the handrail support column (5) passes is formed in the upper surface portion (62) corresponding to the handrail support column (5). Standing up through (67).

  Then, on the back surface of the upper surface portion (62), the same watertight material (44) as that described above is provided in advance, corresponding to the water return piece (26) at the upper end of the side wall portion (15), and the same as above In addition, it is compressed between the water return piece (26) and kept watertight. In addition, the watertight material (44) protrudes from the gap between the tip of the water return piece (26) and the front surface portion (63), which is not partially compressed.

  Further, similarly to the lower end of the front surface portion (63), a fin-like packing (45) attached by inserting the root portion (46) into the mounting groove (47) on the back surface of the front surface portion (41) protrudes. . The tip of the fin-like packing (45) abuts against the inner surface of the side wall (15) in a state of bending upward, and double waterproofing similar to that on the wall side is performed.

  As a result, the water accumulated in the waterproof pan (13) leaks into the gap between the side wall (15) and the outer decorative cover (60), and this wraps around the ceiling and falls under the eaves. Or inconvenience of generating rust on the metal material in the ceiling.

  Next, as shown in FIG. 5, a waterproof cap (70) fitted on the handrail support column (5) is attached to the upper surface side of the waterproof cover (65). As shown in the figure, the waterproof cap (70) includes a short cylindrical portion (71) that is externally fitted to the handrail support column (5), and a cap body (72) at the lower end of the cylindrical portion (71). Are integrally provided by projecting outward in a bowl shape. The cap body (72) has a rectangular horizontal plate shape, and a watertight material (73) having a predetermined thickness is stretched on the back surface thereof.

  (76) and (76) are a pair of fixing bolts for fixing the cap body (72) to the upper surface of the waterproof cover (65), and are integrally provided with a flange (76a) at the bottom of the head. These fixing bolts (76) and (76) are inserted into the bolt holes (74) of the cap body (72) via rubber washers (75) on both sides of the handrail post (5) in the left-right direction, The tip penetrates the bolt hole (77) of the waterproof cover (65), and is screwed into the screw hole (78) of the horizontal portion (56) of the receiving plate (55) to be fixed.

The water-tight material (73) is made of the same independent or open-cell foam as described above, and is compressed by pressing from above by tightening, whereby the cap body (72) and the waterproof cover (65) Keep the gap in a watertight state. The rubber washer (75) effectively prevents water from entering the bolt hole (74).

  As shown in FIG. 7, handrail units (79), (79) are attached between the handrail struts (5), (5), and the headboard (80) is installed thereon. By attaching the handrail unit (79), the handrail support column (5) is covered with the vertical members (81) at both ends of the handrail unit (79), so that the cylindrical portion (71 ) Does not enter from the gap between the upper end of the rail and the handrail support column (5). The vertical member (81) has an L-shaped cross section facing each other at the joint portion between the handrail units (79), and is combined with each other to form a cylindrical body. And is externally fitted to the short tubular portion (71).

  The present invention is optimal for the balcony floor shown in the above embodiment, but is not necessarily limited to this, and can be applied to a veranda or other external floor projecting outside the building body. Moreover, it does not necessarily have to be an accessory type, and a case of a main body type having no gap on the wall side can also be applied to the handrail side.

It is a disassembled perspective view of the principal part which shows schematic structure of the balcony at the time of implementing this invention for an accompanying type balcony. It is a perspective view of the section of a wall edge part similarly. It is an enlarged vertical cross-sectional view at the side of the wall. It is a perspective view of the principal part which shows the attachment condition of the waterproof cover by the side of a handrail. It is a perspective view of the principal part which shows the attachment condition of a waterproof cap. It is a longitudinal cross-sectional view of the handrail support | pillar base part after a waterproof cap attachment. It is the whole balcony perspective view which shows the attachment condition of a handrail unit.

Explanation of symbols

(5) Handrail support
(65) Waterproof cover
(70) Waterproof cap
(71) Cylindrical part
(72) Cap body
(73) Watertight material
(75) Rubber washer
(76) Fixing bolt
(76a) Flange

Claims (4)

Cover the outside of the main body of the external floor, such as a balcony, with an external cover, cover the space between the external cover and the main body with a waterproof cover from above, and raise the handrail struts through the waterproof cover. In such a case, a waterproof cap lined with a watertight material covers the upper surface of the waterproof cover so as to be externally fitted to the handrail support column, and an outer fitting portion of the waterproof cap to the handrail support column is A waterproof structure for the base portion of a handrail strut on an external floor such as a balcony, characterized in that it has a short cylindrical shape rising above the upper surface of the cap . The waterproof structure of the base portion of the handrail strut on the external floor of a balcony or the like according to claim 1, wherein the waterproof cap is fixed to the waterproof cover or a member behind the waterproof cover by a screw member inserted from above through a rubber washer. The waterproof structure of the base portion of the handrail strut on an external floor such as a balcony according to claim 2, wherein the screw member is a flanged bolt. The waterproof structure of the base part of the handrail strut on the external floor such as a balcony according to any one of claims 1 to 3 , wherein the handrail strut is fixed to the frame of the external floor below the waterproof cover.

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