JP6407124B2 - Rubber molded waterproofing material - Google Patents

Description

  The present invention interposes a gap between a pair of opposing surfaces, for example, a gap between a concrete unit wall member constituting a seawall or retaining wall and a concrete column holding the end of the unit wall member. The present invention relates to a rod-shaped rubber molded water stop material that stops intrusion water (seawater or the like) that has entered the room.

  The rubber molded waterstop material uses the elastic repulsive force of rubber to press water against a pair of surfaces that form a gap to achieve water stoppage. Among them, there is an elastic piece and the elastic repulsive force of the elastic piece Rubber molded water-stopping materials that perform the above-mentioned pressure contact are known.

  In the following Patent Documents 1 and 2, each side of the core material arranged along the gap is provided with a plurality of elastic pieces pressed against one surface constituting the gap, and the other side of the same core material. Discloses a rod-shaped rubber molded water-stopping material having a plurality of elastic pieces pressed against the other surface constituting the clearance.

JP 2010-209646 A Japanese Patent No. 5101772

  The molded water-stopping material disclosed in each of the above-mentioned patent documents is intended to stop water by pressing the free ends of the elastic pieces against both of a pair of surfaces constituting a gap. For this reason, there is a problem that the elastic repulsion force of the elastic piece pressed against the other surface is canceled by the elastic repulsion force of the elastic piece pressed against one surface constituting the gap, and there is a possibility that a strong pressure contact cannot be realized. is there.

  Moreover, the molded water-stopping material of each of the above-mentioned patent documents has a configuration in which a plurality of elastic pieces are all bent toward the open side of the play, that is, a configuration in which all elastic pieces are bent in the same direction. There is also a risk of misalignment in the depth direction between the play.

  The present invention effectively solves the problems of the conventional molded water-stopping material, and provides a rubber molded water-proof material that is firmly pressed against both of a pair of surfaces constituting a gap.

  In short, the rubber molded water-stopping material according to the present invention is disposed so as to be orthogonal to the intrusion direction of the invading water that has entered the gap in the gap constituted by a pair of opposing surfaces. A rod-shaped rubber molded water-stopping material for water stoppage, which includes a base body having a flat bottom surface in a cross-sectional shape in the direction perpendicular to the axis, and which is integrally raised from the left and right end portions of the base body. The elastic pieces are spread out while pressing the lower surface of the base body on one surface constituting the clearance and the free ends of the elastic pieces on the other surface, thereby preventing water from stopping. At the same time, the outer surface of the elastic piece in contact with the intruding water receives the water pressure of the intruding water and supplements the pressure contact of the free end of the elastic piece. Therefore, both the pair of surfaces constituting the gap can be firmly pressed against each other and displacement can be effectively prevented.

  Preferably, the opposing interval between the elastic pieces is configured to gradually increase toward the free end of each elastic piece, and the pair of elastic pieces is surely expanded.

  Further, the end surface of the free end portion of each elastic piece is formed into a curved shape, and the pair of elastic pieces are expanded while the curved end surface is in sliding contact with the other surface constituting the gap.

  Moreover, the bridge | crosslinking body which bridge | crosslinks the middle parts of each said elastic piece is provided, and the press-contact of the free end part of each said elastic piece is supplemented with this crosslinked body.

  Preferably, a metal plate is fixed to the upper surface of the base, and the lower surface of the base is uniformly pressed against one surface constituting the gap through the plate.

  According to the rubber molded water-stopping material according to the present invention, the lower surface having the planar shape of the base body is uniformly pressed against one surface constituting the play, and the other surface constituting the play is forcibly expanded. The free end portion of the elastic piece thus pressed can be firmly pressed to ensure water stoppage.

  Further, vibration can be effectively absorbed by the pair of expanding elastic pieces, and also functions as a cushioning material.

(A) is a lower perspective view of a rubber molded water stop material according to the present invention, and (B) is an upper perspective view of the same. The schematic diagram which shows the example of attachment of the rubber molded water stop material which concerns on this invention. The top view which shows the attachment state of the rubber molding water stop material. (A) is sectional drawing which shows the attachment state of the rubber molding water stop material, (B) is sectional drawing which shows the state in the play of a rubber molding water stopping material. Sectional drawing which shows the deformation | transformation by the intrusion water pressure of a rubber molded water stop material.

  Hereinafter, an embodiment of a rubber molded water stop material according to the present invention will be described with reference to FIGS.

  In this embodiment, for convenience of explanation, as shown in FIGS. 2 and 3, a unit wall member C (concrete structure) constituting the seawall and a cross section in the direction perpendicular to the axis that supports and holds the unit wall member C. Shows an embodiment in the case where the rubber molded water-stopping material 1 according to the present invention is attached in the gap G generated between the pillars P made of H-shaped concrete. However, the rubber molded water stop material according to the present invention is not limited to this, and can be easily used for water stop if there is a gap formed between a pair of surfaces. In particular, it is most suitable for water stoppage in the gap between the gaps extending in the vertical direction as in the present embodiment, for example, gaps that occur when constructing walls such as earth retaining walls and retaining walls.

  As shown in FIGS. 4B and 5, the rubber molded waterproof material 1 according to the present invention has a pair of opposed surfaces, that is, a gripping surface Pa of the column P and a gripped surface Ca of the unit wall member C ( C′a) A rod-shaped rubber molded stopper that is disposed so as to be perpendicular to the intrusion direction of intrusion water (seawater or the like) that has entered the gap G, and is designed to stop the intrusion water. It is water material. Such a rubber molded water-stopping material 1 is used as a basic material by combining chloroprene rubber, styrene butadiene rubber, isoprene rubber, butyl rubber, ethylene propylene rubber, natural rubber, nitrile rubber, urethane rubber, and other polymer materials alone or in combination. Used and molded by known extrusion or press molding.

  As shown in FIG. 1, the basic configuration includes a base 2 having a rectangular cross-section having a planar lower surface 2 a in the cross-sectional shape in the direction perpendicular to the axis, and a right-side elastic rising integrally from the right end 2 c of the base 2. A piece 3 and a left elastic piece 4 rising integrally from the left end 2d of the base body 2 are provided, and the right elastic piece 3 and the left elastic piece 4 are opposed to each other. In addition, 2e in FIG. 1 (A) is a through-hole which inserts the axial part of the volt | bolt 7 at the time of the attachment mentioned later, and several holes are drilled at intervals along the longitudinal direction of the molded water stop material 1. FIG.

  Preferably, the facing distance between the right elastic piece 3 and the left elastic piece 4 is set so as to gradually increase toward the free ends 3a, 4a of the elastic pieces 3, 4, and as described later, The elastic pieces 3 and 4 are surely expanded. More preferably, as shown also in FIG. 3, the outer surface of each elastic piece 3, 4 and the left and right end surfaces of the base 2 are made continuous so that the water pressure of the intruding water can be received effectively as will be described later. The end surfaces of the free end portions 3a and 4a are curved surfaces, and as will be described later, the curved end surfaces of the free end portions 3a and 4a are in slidable contact with the other surfaces (supported surfaces Ca and C′a) constituting the gap G The elastic pieces 3 and 4 are deformed so that the elastic piece 3 and the left elastic piece 4 are reliably expanded, that is, the free end 3a of the right elastic piece 3 and the free end 4a of the left elastic piece 4 are separated from each other. Let

  Moreover, the bridge | crosslinking body 5 which bridge | crosslinks the middle parts of the right side elastic piece 3 and the left side elastic piece 4 is provided, and this elastic piece 3,4 is prevented from opening too much by this bridge | crosslinking body 5, and each said elastic piece 3,4 The free end portions 3a and 4a are complemented. That is, the middle part of the right elastic piece 3 and the middle part of the left elastic piece 4 are connected by the bridging body 5, and the free end portions 3a, 4a of the elastic pieces 3, 4 are allowed to deform in the mutually separated direction. Prevent excessive deformation. In addition, 5a in FIG. 1 (B) is a through-hole which inserts the axial part and head part of the volt | bolt 7 at the time of the attachment mentioned later, and it drills in multiple numbers at intervals along the longitudinal direction of the molded water stop material 1 To do.

  Further, a metal plate 6 is disposed along the upper surface 2 b of the base 2. The plate body 6 is continuously or intermittently arranged and fixed along the longitudinal direction of the upper surface 2b of the base body 2, and the lower surface 2a of the base body 2 is uniformly pressed against the constituent surface of the gap G as will be described later.

  Next, the attachment of the rubber molded waterproof material 1 (hereinafter simply referred to as “molded waterproof material”) according to the present invention will be described in detail.

  As shown in FIGS. 2 and 3, the pillars P erected at intervals are H-shaped in a cross-axis direction having flanges extending vertically at the front and rear ends of the vertically extending web, and are also shown in FIG. 3. As described above, the unit wall member C is supported by holding the left and right end portions of the unit wall member C with the inner surfaces of the left and right end portions of each flange, that is, two opposing inner surfaces as the holding surfaces Pa. 2 and 3, Ca indicates a held surface at the end of the unit wall member C, C ′ in FIG. 3 indicates a unit wall member adjacent to the unit wall member C, and C 'A' indicates the holding surface of the end of the adjacent unit wall member C ′.

  Preferably, the molded water-stopping material 1 according to the present invention is fixedly attached to the four holding surfaces Pa of the column P in advance along the longitudinal direction of the holding surface Pa, that is, the vertical direction.

  More specifically, as shown in FIG. 4A, an anchor or insert 8 is embedded in the holding surface Pa of the column P, and a through hole 5a drilled in the bridge 5 and a receiving hole 6a drilled in the plate 6. And the shaft part of the volt | bolt 7 is penetrated to the through-hole 2e drilled in the base | substrate 2, this shaft part is engaged with the said anchor or insert 8, and attachment is performed.

  The head of the bolt 7 is received in the receiving hole 6 a of the plate 6, and the plate 6 is pressed against the holding surface Pa by the bolt 7, and accordingly, the lower surface 2 a of the base 2 is uniformly pressed against the holding surface Pa. .

  Next, each end portion of the unit wall member C is inserted between the holding surface Pa to which the molded water-stopping material 1 is attached in advance as described above and the holding surface Pa facing the holding surface Pa. In this case, each end of the unit wall member C is inserted while forcibly expanding the right elastic piece 3 and the left elastic piece 4 at the upper end of the molded water-stopping material 1 that first contacts each end of the unit wall member C. It is desirable. This is because the right elastic piece 3 and the left elastic piece 4 are prevented from being deformed in the closing direction, and the elastic pieces 3 and 4 are surely expanded.

  When the left and right end portions of each unit wall member C are completely inserted between the opposing holding surfaces Pa, as shown in FIGS. 3 and 4B, the holding surface Pa and the holding surface Ca (C′a ) The molded water stop material 1 is disposed in the gap G generated between the two.

  In particular, in the molded water-stopping material 1 of the present invention, as shown in FIG. 4 (B), the curved end surfaces of the free end portions 3a and 4a of the right elastic piece 3 and the left elastic piece 4 are held. The elastic pieces 3 and 4 expand by being separated from each other while being in sliding contact with the surface Ca (C′a).

  That is, the molded water-stopping material 1 according to the present invention presses the lower surface 2a of the base 2 to one surface (holding surface Pa) constituting the gap G as described above, and the other surface (supported surface Ca (C ′ A)), as shown in FIG. 4 (B), the elastic pieces 3 and 4 are expanded while the free ends 3a and 4a of the elastic pieces 3 and 4 are in pressure contact with each other to stop water. it can.

  Further, in the molded water-stopping material 1 according to the present invention, as shown in FIG. 5, the elastic piece in contact with the intruding water, that is, the outer side surface 3b of the right elastic piece 3 in FIG. The hydraulic pressure is received and the pressure contact of the free end 3a of the elastic piece 3 is complemented.

  As described above, the molded water-stopping material 1 according to the present invention can be firmly pressed against both of the pair of surfaces Pa and Ca constituting the gap, and the positional displacement of the molded waterproofing material 1 can also be effectively caused by the strong pressure contact. Water can be reliably stopped while preventing.

  Further, the elastic pieces 3 and 4 are prevented from opening too much by the bridging body 5 that bridges the middle portions of the right elastic piece 3 and the left elastic piece 4, and the free ends 3a and 4a of the elastic pieces 3 and 4 are prevented. Can be supplemented, and can also function as a cushioning material.

  In the present embodiment, the example in which the molded water-stopping material 1 is fixed and attached in advance to the column P side is shown, but the molded water-stopping material 1 is fixed and attached to the unit wall member C (C ′) side. Of course, it may be left.

DESCRIPTION OF SYMBOLS 1 ... Molding water stop material, 2 ... Base | substrate, 2a ... Lower surface, 2b ... Upper surface, 2c ... Right end part, 2d ... Left end part, 2e ... Through-hole, 3 ... Right elastic piece, 3a ... Free end part, 3b ... Outer surface 4 ... left elastic piece, 4a ... free end, 5 ... cross-linked body, 5a ... through hole, 6 ... plate body, 6a ... receiving hole, 7 ... bolt, 8 ... anchor or insert, C, C '... unit wall Member (concrete structure), Ca, C′a: gripped surface, P: pillar, Pa: gripped surface, G: play space.

Claims (4)

A rod-shaped rubber molded water-stopping material that is disposed so as to be perpendicular to the intrusion direction of the intrusion water that has entered the gap between the gaps constituted by a pair of opposing surfaces, and is intended to stop the intrusion water. in the direction perpendicular to the axis of the cross-sectional shape, e Bei a substrate having a lower surface of the planar shape, Rutotomoni includes a pair of elastic pieces facing rising integrally from each of the left and right ends of the base body, middle portions of the respective elastic pieces A cross-linked body that cross-links the lower surface of the base body to one surface that constitutes the clearance, and expands each elastic piece while pressing the free end of each elastic piece to the other surface. And the outer surface of the elastic piece that is in contact with the intruding water receives the water pressure of the intruding water to supplement the pressure contact of the free end of the elastic piece , and further the opening of each elastic piece by the bridged body. only to prevent, to supplement the pressure of the free end of each of the elastic piece structure Rubber molded water stopping material, characterized in that the the.   The rubber molded water-stopping material according to claim 1, wherein the facing interval between the elastic pieces gradually becomes wider toward the free end side of each elastic piece.   The rubber molded waterstop material according to claim 1 or 2, wherein the end surface of the free end portion of each elastic piece has a curved shape. The metallic plate member is fixed to the upper surface of said substrate, either a bottom surface of said substrate through said plate member according to claim 1 to claim 3, characterized in that uniformly pressed against the one surface constituting the Joint Gap A rubber molded waterproofing material according to claim 1.

Images