JP2016199975A - Doorsill and method of attaching doorsill - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate attaching work and to shorten the period of construction.SOLUTION: The present invention relates to a doorsill 10 to be fitted to a part as a sill of a gateway comprising an opening door D on a floor surface F of concrete slab C. The doorsill comprises reinforcing materials 12, 13 made of steel materials and having both ends fixed to a lower end part of a door jamb 20, and a doorsill body 11 covering outer surfaces of the reinforcing materials 12, 13 and having an airtight material mount part 11c, where an airtight material AT is mounted, formed with the opening door D, and is fixed by threadably engaging a fitting screw S to the floor surface F of the concrete slab C through the reinforcing materials 12, 13.SELECTED DRAWING: Figure 2

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shoe attached to a lower frame of an entrance / exit with an opening door and a method for attaching the same, and more particularly to a shoe for attaching a concrete slab which is a structural frame and a method for attaching the same. It is.

  When an entrance / exit is installed in a room such as a machine room or a pipe room where airtightness or watertightness is required, a drop is provided in a lower frame. The shoe is a long member provided so as to protrude from the floor surface. The general suspension includes, for example, a suspension main body formed of a stainless steel plate material, and a mortar filled inside the suspension main body. The shoe body is provided with a sealing material at a portion facing the lower side edge of the side surface of the door. The sealing material is formed of an elastic material such as rubber, for example. When the opening door is closed, the sealing material is pressed against the lower edge of the side surface of the opening door, and functions to restrict ventilation and water flow through the doorway.

  When attaching this type of shoe to the floor surface of the concrete slab, first, the concrete slab of the portion to which the shoe is attached is dug to form a recess. The recess opens to a region larger than the plan view of the shoe and has a depth of about 30 mm. It is preferable to prepare a metal anchor in advance in the recess. Moreover, the mortar is backed and hardened inside the shoe body.

  Next, the suspension in which the mortar is hardened is placed in the concave portion of the concrete slab, and the suspension body is welded to the anchor. Furthermore, the lower half of the suspension is embedded in the concrete slab by filling and curing mortar around the suspension. After the mortar is cured, if necessary, a finishing material is pasted on the floor surface of the concrete slab (for example, see Non-Patent Document 1).

  According to the suspension attached as described above, since the lower half is embedded in the concrete slab, sufficient attachment strength can be obtained. Moreover, since the mortar is backed inside the shoe body, there is no risk of deformation even when a load is applied to the upper surface of the shoe body. Therefore, when the opening door is closed, the sealing material can be reliably pressed against the lower edge of the side surface of the opening door, and desired airtightness and watertightness are ensured.

Detailed construction work standard map, supervised by the Ministry of Land, Infrastructure, Transport and Tourism Minister's Secretariat Maintenance Department Maintenance Department, Public Building Association, May 21, 2010 (first print), p. 73-74

  By the way, in the method of attaching the above-described suspension, since it is necessary to provide a recess on the floor surface of the concrete slab, the installation work becomes complicated. Moreover, after the shoe is attached, the surrounding area must be filled with mortar and cured, which is not preferable in terms of the construction period.

  In view of the above circumstances, an object of the present invention is to provide a shoe and a method for attaching the shoe that can facilitate the attachment work and shorten the construction period.

  In order to achieve the above-described object, the shoe according to the present invention is a shoe attached to a portion of the floor of a concrete slab that is a lower frame of an entrance / exit provided with an opening door, and is constituted by a steel material, and both end portions are A reinforcing material fixed to the lower end of the vertical frame, and a suspension body that covers an outer surface of the reinforcing material and has an airtight material mounting portion on which an airtight material between the opening door is mounted, A fixing screw is screwed onto the floor surface of the concrete slab via the reinforcing material, and is fixed.

  Further, the present invention is characterized in that, in the above-described suspension, the suspension body is formed of stainless steel and the reinforcing member is formed of steel.

  Further, the present invention provides the above-described suspension, wherein the suspension main body is mounted on the substrate portion facing the lower surface of the opening door, and the airtight material is mounted on a portion protruding upward from the substrate portion and facing the side surface of the opening door. And a door contact portion having a portion.

  Further, the present invention is characterized in that, in the above-described suspension, the substrate portion and the door contact portion are integrally formed by bending one thin plate.

  Also, the method for attaching the shoe according to the present invention comprises a steel material, both ends of which are fixed to the lower end of the vertical frame, and an airtight cover between the outer surface of the reinforcing material and the open door. A method of attaching a shoe provided with a shoe body having an airtight material mounting portion to which a material is attached to a floor surface of a concrete slab, the step of fixing the reinforcing material to the shoe body in advance, A step of installing the shoe main body on a floor surface via a reinforcing material, and screwing a mounting screw onto the floor surface via the shoe main body and the reinforcing material.

  Also, the method for attaching the shoe according to the present invention comprises a steel material, both ends of which are fixed to the lower end of the vertical frame, and an airtight cover between the outer surface of the reinforcing material and the open door. It is a method of attaching to a floor surface of a concrete slab with a suspension body having an airtight material mounting portion to which a material is mounted, the reinforcing material is installed on the floor surface, and through the reinforcing material It includes a step of screwing a mounting screw onto the floor surface, and a step of disposing the suspension body on the reinforcing material so as to cover an outer surface of the reinforcing material.

  According to the present invention, since the reinforcing material constituted by the steel material is provided and fixed to the floor surface of the concrete slab with the fixing screw via the reinforcing material, the mortar can be backed into the shoe body, It is possible to firmly attach a suspension having a desired strength to the floor surface without forming a recess in the floor surface of the slab. Moreover, it is not necessary to fill the mortar around after attaching the shoe. Therefore, it becomes possible to facilitate the mounting operation and shorten the construction period.

  When attaching the shoe to the floor with the mounting screw, the mounting screw may be screwed after fixing the reinforcing material to the shoe body in advance, or it is reinforced after attaching only the reinforcing material to the floor with the mounting screw. The suspension body may be disposed so as to cover the outer surface of the material.

FIG. 1 is a fragmentary perspective view of a main part of a shoe that is Embodiment 1 of the present invention. FIG. 2 is a sectional side view of the suspension shown in FIG. FIG. 3 is a plan view of the shoe shown in FIG. FIG. 4 is a bottom view of the suspension shown in FIG. FIG. 5 is a right side view of the suspension shown in FIG. FIG. 6 is a left side view of the suspension shown in FIG. FIG. 7 is an exploded perspective view of the shoe shown in FIG. FIG. 8 is a cross-sectional side view showing a process of attaching the shoe shown in FIG. 1 to the floor surface of the concrete slab. FIG. 9 is a cross-sectional side view of the state in which the suspension shown in FIG. 1 is installed on the floor surface of the concrete slab and then the mounting screws are screwed together. FIG. 10 is a fragmentary perspective view of the main part of the shoe that is Embodiment 2 of the present invention. 11 is a cross-sectional side view of the shoe shown in FIG. FIG. 12 is a cross-sectional side view showing a process of attaching the reinforcing member of the suspension shown in FIG. 10 to the floor surface of the concrete slab. FIG. 13 is a cross-sectional side view of the state in which the reinforcing member for the suspension shown in FIG. 1 is installed on the floor surface of the concrete slab and then the mounting screws are screwed together.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of a shoe and a method for attaching a shoe according to the present invention will be described in detail with reference to the accompanying drawings.

(Embodiment 1)
FIG. 1 shows a shoe that is Embodiment 1 of the present invention. The shoe 10 illustrated here is provided at a portion serving as a lower frame at the entrance / exit of a room requiring airtightness, such as a machine room or a pipe room, with the floor surface F of the concrete slab C as an attachment target. Although not explicitly shown in the drawing, the entrance / exit where the shoe 10 is provided is for a person to enter and exit, and the open door D is supported by a hinge 20 on the vertical frame 20 so as to be opened and closed. As shown in FIGS. 2 to 7, the shoe 10 includes a shoe body 11 and two reinforcing members 12 and 13.

  The shoe body 11 is a portion exposed to the outside at a portion that becomes a lower frame of the entrance / exit. The shoe body 11 according to the first embodiment is formed by bending a stainless steel thin plate, and includes a substrate portion 11a, a door contact portion 11b, and an airtight material mounting portion 11c.

  The substrate portion 11a is a flat plate-like portion extending along the horizontal direction so as to face the lower surface d1 of the opening door D when the opening door D is closed. The base end portion 11a1 of the substrate portion 11a is bent at a substantially right angle downward. The board portion 11a is provided with screw insertion holes 11d at a plurality of locations along the longitudinal direction. The screw insertion hole 11d is a through hole provided along the vertical direction, and is closer to the base end part 11a1 than the protruding end face of a fin-like part 11e described later in the base end part 11a1, and when the opening door D is closed. It is formed in a portion covered by the opening door D. The screw insertion hole 11d is formed to have an inner diameter that allows the shaft portion of the mounting screw S to be inserted and prevents the head portion from being inserted.

  The door contact portion 11b is a portion that protrudes upward from the tip of the substrate portion 11a and is configured to face the lower edge of the side surface d2 of the opening door D when the opening door D is closed. A rising portion 11b1 provided adjacent to the substrate portion 11a in the door contact portion 11b is bent substantially at a right angle from the substrate portion 11a and protrudes upward. On the other hand, the front end portion 11b2 separated from the substrate portion 11a in the door contact portion 11b is configured to bend substantially vertically downward after passing through the inclined surface 11b3 gradually inclined downward as the distance from the substrate portion 11a increases. It is.

  The airtight material mounting portion 11c is configured between the substrate portion 11a by projecting a fin-like portion 11e substantially horizontally from the upper portion of the door contact portion 11b toward the base end portion 11a1 of the substrate portion 11a. is there.

  As shown in FIG. 7, the shoe body 11 of the first embodiment is configured by a single thin plate. In other words, the rising portion 11b1 of the door contact portion 11b is configured by bending the front end portion of the substrate portion 11a upward at a substantially right angle. The airtight material mounting portion 11c is configured by bending the rising portion 11b1 of the door contact portion 11b at a substantially right angle so as to face the substrate portion 11a and then folding back 180 °. The 180 ° folded portion extends substantially horizontally to a position exceeding the rising portion 11b1, and then forms an inclined surface 11b3 by bending obliquely downward, and further bending vertically downward to contact the door. The tip portion 11b2 of 11b is configured.

  According to the suspension body 11 formed by bending a thin plate as described above, a portion where the two thin plates are overlapped with the portion that becomes the upper surface of the door contact portion 11b is formed. Is advantageous. Therefore, even when a load is partially applied to the upper surface of the door abutting portion 11b that protrudes most from the floor surface F, there is no possibility that deformation such as bending is caused.

  The reinforcing members 12 and 13 are made of a steel material having a plate thickness larger than that of the stainless steel thin plate constituting the shoe body 11, and are provided with a contact portion reinforcing member 12 and a substrate portion reinforcing member 13. The abutting portion reinforcing material 12 is disposed inside the door abutting portion 11b, and the substrate portion reinforcing material 13 is disposed inside the substrate portion 11a. These reinforcing members 12 and 13 are formed by bending a pair of leg plate portions 12b and 13b so as to be substantially perpendicular to both side edges of the reinforcing base portions 12a and 13a having a flat plate shape.

  The reinforcing base portion 13a of the substrate portion reinforcing member 13 is a flat plate-like portion having a size capable of contacting the entire inner surface of the portion extending horizontally in the substrate portion 11a. In the reinforcing base portion 13a, screw insertion holes 13c are formed in portions corresponding to the screw insertion holes 11d of the substrate portion 11a. The screw insertion hole 13c is formed with an inner diameter that allows the shaft portion of the mounting screw S to be inserted and prevents the head portion from being inserted. When the leg plate portion 13b of the board portion reinforcing member 13 is disposed inside the board portion 11a in a state where the respective distal end portions are installed on a horizontal plane, the base end portion 11a1 of the board portion 11a and the door contact portion 11b. The height dimension is set such that the reinforcing base portion 13a can be brought into contact with the inner surface of the substrate portion 11a in a state where the front end portions 11b2 are respectively installed on the floor surface F.

  The reinforcing base portion 12a of the contact portion reinforcing member 12 is a flat plate-like portion having a size capable of contacting the entire inner surface of a portion extending horizontally in the door contact portion 11b. The leg plate portion 12b of the abutting portion reinforcing member 12 and the base abutting portion 11a1 of the substrate portion 11a and the door abutting when the individual distal end portions are disposed inside the door abutting portion 11b in a state where they are installed on a horizontal plane. The height is set such that the reinforcing base 12a can be brought into contact with the inner surface of the door contact portion 11b in a state where the tip portions 11b2 of the portions 11b are respectively installed on the floor surface F.

  Although not explicitly shown in the drawing, these reinforcing members 12 and 13 are fixed to the lower side surface of the vertical frame 20 at both ends in a state where they are arranged side by side. As a method for fixing the end portions of the reinforcing members 12 and 13 to the vertical frame 20, for example, welding may be performed to fix each other. In this case, a plurality of portions between the leg plate portions 12b and 13b arranged in parallel may be fixed in advance between the reinforcing members 12 and 13 by spot welding.

  When attaching the suspension 10 configured as described above to the floor surface F of the concrete slab C, first, as shown in FIG. 8, the board portion reinforcing material 13, the contact portion reinforcing material 12, and the suspension main body 11. Are fixed to each other. As a method of fixing the reinforcing members 12 and 13 and the suspension main body 11 to each other, for example, appropriate portions may be bonded to each other with an adhesive or a double-sided tape.

  Thereafter, the suspension body 11 to which the reinforcing members 12 and 13 are fixed is installed on the floor F of the concrete slab C in the lower frame of the entrance and exit, as shown in FIG. 9, the screw insertion hole 11d of the suspension body 11. When the mounting screw S is screwed into the concrete slab C through the screw insertion hole 13c of the board portion reinforcing member 13, the shoe 10 is fixed to the floor surface F through the reinforcing members 12 and 13.

  In this state, the base plate portion 11a1 of the base plate portion 11a and the tip end portion 11b2 of the door contact portion 11b are installed on the floor surface F, and the leg plate portions 12b and 13b of the respective reinforcing members 12 and 13 are placed on the floor. While being in contact with the surface F, the reinforcing base portions 12a and 13a of the reinforcing member are in contact with the door abutting portion 11b of the shoe body 11 and the inner surface of the substrate portion 11a. Therefore, even if a local load is applied to the shoe body 11, there is no possibility of causing a deformation. Thus, if the airtight material AT is attached to the airtight material attachment portion 11c formed between the fin-like portion 11e and the substrate portion 11a, the lower edge of the side surface d2 of the closed open door D as shown in FIG. As a result, the airtight material AT is reliably in pressure contact with the entire length, and desired airtightness can be secured at the entrance / exit.

  In addition, as described above, there is no need to provide a recess in the floor surface F, or to fill the floor surface F or the shoe body 11 with mortar. Thereby, the attachment work of the shoe 10 can be facilitated, and the construction period can be shortened.

(Embodiment 2)
FIG. 10 shows a shoe that is Embodiment 2 of the present invention. As in the first embodiment, the shoe 110 illustrated here is a part that is a lower frame at the entrance / exit of a room such as a machine room or a pipe room where the floor surface F of the concrete slab C is an object to be attached. Is provided. The doorway in which the shoe 110 is provided is for a person to go in and out, and is similar to the first embodiment in that the door D is supported by the vertical frame 20 so as to be opened and closed by a hinge. As shown in FIG. 11, the shoe 110 includes the shoe body 11 and the reinforcing material 112.

  The shoe body 11 is a portion exposed to the outside at a portion serving as a lower frame of the entrance and exit, and is configured by bending a thin stainless steel plate, as in the first embodiment. The point that the shoe body 11 has the substrate portion 11a, the door contact portion 11b, and the airtight material mounting portion 11c is the same as in the first embodiment, and the screw insertion hole 11d is not provided in the substrate portion 11a. This is different from the first embodiment only. Accordingly, the shoe body 11 of the second embodiment is given the same reference numeral as that of the first embodiment, and the detailed description thereof is omitted.

  The reinforcing member 112 of the shoe 110 is made of a steel material having a plate thickness larger than that of the stainless steel thin plate constituting the shoe main body 11, and the mounting base 112a, the contact reinforcing member 112b, and the board reinforcing member 112c are provided. I have. The attachment base portion 112 a is a flat plate-like portion having a width approximately half that of the substrate portion 11 a of the shoe body 11. The attachment base 112a is provided with screw insertion holes 112d at a plurality of locations along the longitudinal direction. The screw insertion hole 112d has an inner diameter that allows the shaft portion of the mounting screw S to be inserted and prevents the head portion from being inserted.

  The contact reinforcing portion 112b and the substrate reinforcing portion 112c are provided at portions on both sides of the mounting base portion 112a. The contact reinforcing portion 112b is a portion disposed inside the door contact portion 11b, and the substrate reinforcing portion 112c is a portion disposed inside the substrate portion 11a.

  The board reinforcing part 112c has a rising part 112c1, a reinforcing base part 112c2, and a leg plate part 112c3. The rising portion 112c1 is a portion bent upward so as to be substantially perpendicular to one edge portion of the mounting base portion 112a. The reinforcing base 112c2 is a portion that is bent at a substantially right angle from the upper end of the rising portion 112c1 toward the opposite side of the mounting base 112a and extends horizontally. The reinforcing base portion 112c2 has a width approximately half that of a portion extending horizontally in the substrate portion 11a of the shoe body 11. The leg plate part 112c3 is a part bent vertically downward from the extending end part of the reinforcing base part 112c2. The rising portion 112c1 and the leg plate portion 112c3 are configured so that the base end portion 11a1 of the substrate portion 11a and the distal end portion 11b2 of the door contact portion 11b are on the floor surface F when the substrate reinforcing portion 112c is disposed inside the substrate portion 11a. In the installed state, the height is set such that the reinforcing base 112c2 can be brought into contact with the inner surface of the substrate portion 11a.

  The contact reinforcing portion 112b includes a rising portion 112b1, a reinforcing base portion 112b2, an inclined portion 112b3, and a leg plate portion 112b4. The rising portion 112b1 is a portion bent upward so as to be substantially perpendicular to the other edge portion of the mounting base portion 112a. The reinforcing base portion 112b2 is a portion that is bent at a substantially right angle from the upper end of the rising portion 112b1 toward the opposite side of the mounting base portion 112a and extends horizontally. The reinforcing base portion 112b2 is formed to have a size capable of coming into contact with the entire inner surface of a portion extending horizontally in the door contact portion 11b of the shoe body 11. The inclined portion 112b3 is inclined obliquely downward from the extending end portion of the reinforcing base portion 112b2. The inclined portion 112b3 is formed in a size capable of contacting the entire inner surface of the inclined surface 11b3 of the shoe body 11. The leg plate portion 112b4 is a portion bent vertically downward from the extending end portion of the inclined portion 112b3. When the rising portion 112b1 and the leg plate portion 112b4 are disposed inside the door contact portion 11b, the base end portion 11a1 of the base plate portion 11a and the distal end portion 11b2 of the door contact portion 11b are installed on the floor surface F, respectively. Thus, the height is set so that the reinforcing base 112b2 can be brought into contact with the inner surface of the door contact portion 11b and the inclined portion 112b3 can be brought into contact with the inner surface of the inclined surface 11b3.

  When the suspension 110 configured as described above is attached to the floor surface F of the concrete slab C, first, as shown in FIG. 12, the reinforcing material 112 becomes a lower frame of the entrance / exit on the floor surface F of the concrete slab C. The mounting screw S is screwed into the concrete slab C through the screw insertion hole 112d of the reinforcing material 112.

  Thereafter, as shown in FIG. 13, if the shoe body 11 is disposed so as to cover the outer surface of the reinforcing material 112, the shoe 110 is fixed to the floor surface F via the reinforcing material 112. Although not clearly shown in the figure, the reinforcing material 112 and the main body 11 may be appropriately bonded by an adhesive means such as an adhesive or a double-sided tape.

  In this state, the base end portion 11a1 of the base plate portion 11a and the tip end portion 11b2 of the door contact portion 11b are respectively installed on the floor surface F, and the mounting base portion 112a and the leg plate portion 112c3 of the reinforcing material 112 are on the floor surface F. At the same time, the reinforcing bases 112c2 and 112b2 of the reinforcing material 112 are in contact with the door abutting portion 11b of the shoe body 11 and the inner surface of the substrate portion 11a, respectively. Therefore, even if a local load is applied to the shoe body 11, there is no possibility of causing a deformation. Thus, if the airtight material AT is mounted on the airtight material mounting portion 11c formed between the fin-shaped portion 11e and the substrate portion 11a, the lower edge of the side surface d2 of the closed open door D as shown in FIG. As a result, the airtight material AT is reliably in pressure contact with the entire length, and desired airtightness can be secured at the entrance / exit.

  In addition, as described above, there is no need to provide a recess in the floor surface F, or to fill the floor surface F or the shoe body 11 with mortar. Thereby, it is possible to facilitate the attachment work of the shoe 110 and to shorten the construction period.

  Further, since the reinforcing material 112 screwed with the mounting screw S is configured to be covered by the shoe body 11, the mounting screw S is not exposed to the outside, and the appearance quality of the shoe 110 is improved. It will be advantageous.

  In the first and second embodiments described above, the shoe body is formed of stainless steel. However, the present invention is not limited to this, and the shoe body is formed of other metal materials. It doesn't matter. In this case, the shoe body and the reinforcing material do not need to be different materials.

  Moreover, in Embodiment 1 and Embodiment 2 mentioned above, the suspension main body which has a board | substrate part and the door contact part is illustrated, However, The shape of a suspension main body is not necessarily limited to the thing of Embodiment. Not. In the first and second embodiments described above when the shoe body has a substrate portion and a door contact portion, the substrate portion and the door contact portion are integrated by bending a single thin plate. Although it is formed, it is not always necessary to form the main body from one thin plate.

DESCRIPTION OF SYMBOLS 10 Cushion 11 Cushion main body 11a Board | substrate part 11b Door contact part 11c Airtight material mounting part 12 Contact part reinforcement material 13 Board | substrate part reinforcement material 20 Vertical frame 110 Crash 112 reinforcement material AT Airtight material C Concrete slab D Open door F Floor S Mounting screw

Claims (6)

A suspension attached to the bottom frame of the entrance / exit with an opening door on the floor surface of the concrete slab,
It is made of steel and has a reinforcing material whose both ends are fixed to the lower end of the vertical frame, and an airtight material mounting portion that covers the outer surface of the reinforcing material and is mounted with an airtight material between the opening door. A suspension comprising a suspension main body and fixed by screwing a mounting screw onto the floor surface of the concrete slab via the reinforcing member.   The shoe according to claim 1, wherein the shoe body is formed of stainless steel and the reinforcing member is formed of steel.   The shoe body has a substrate portion that faces the lower surface of the opening door, and a door contact portion that protrudes upward from the substrate portion and has the airtight material mounting portion at a portion that faces the side surface of the opening door. The shoe according to claim 1, wherein   The shoe according to claim 1, wherein the substrate portion and the door contact portion are integrally formed by bending one thin plate. It is made of steel and has a reinforcing material whose both ends are fixed to the lower end portion of the vertical frame, and an airtight material mounting portion that covers the outer surface of the reinforcing material and is mounted with an airtight material between the opening door A method of attaching a shoe with a shoe body to a floor surface of a concrete slab,
Pre-fixing the reinforcing material to the shoe body;
Installing the suspension body on the floor surface via the reinforcing material, and screwing a mounting screw to the floor surface via the suspension body and the reinforcement material. Mounting method. It is made of steel and has a reinforcing material whose both ends are fixed to the lower end portion of the vertical frame, and an airtight material mounting portion that covers the outer surface of the reinforcing material and is mounted with an airtight material between the opening door A method of attaching a shoe with a shoe body to a floor surface of a concrete slab,
Installing the reinforcing material on the floor, and screwing a mounting screw to the floor through the reinforcing material;
And a step of disposing the main body of the shoe on the reinforcing material so as to cover the outer surface of the reinforcing material.

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