JP6893343B2 - Seat fixture - Google Patents

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JP6893343B2
JP6893343B2 JP2016179856A JP2016179856A JP6893343B2 JP 6893343 B2 JP6893343 B2 JP 6893343B2 JP 2016179856 A JP2016179856 A JP 2016179856A JP 2016179856 A JP2016179856 A JP 2016179856A JP 6893343 B2 JP6893343 B2 JP 6893343B2
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boss
main body
extension
heat insulating
insulating material
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裕之 大西
裕之 大西
野元　裕正
裕正 野元
博之 庄司
博之 庄司
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アーキヤマデ株式会社
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Description

本発明は、防水シートを固定するシート固定具に関する。 The present invention relates to a sheet fixture for fixing a waterproof sheet.

従来のシート固定具が、例えば、特許文献１に記載されている。特許文献１に記載のシート固定具は、防水下地上に断熱材が敷設されると共に断熱材上に防水シートが敷設される屋根に用いられる。シート固定具は、断熱材よりも上側に配置した状態で防水下地にビスによって固定するものとなっており、その固定したシート固定具に防水シートを固着することで、断熱材を敷設した防水下地に防水シートを支持させるようになっている。 Conventional seat fixtures are described, for example, in Patent Document 1. The sheet fixture described in Patent Document 1 is used for a roof in which a heat insulating material is laid on a waterproof base and a waterproof sheet is laid on the heat insulating material. The sheet fixture is fixed to the waterproof base with screws in a state where it is placed above the heat insulating material, and by fixing the waterproof sheet to the fixed seat fixture, the waterproof base on which the heat insulating material is laid. Is designed to support the waterproof sheet.

特開２０１０−１２６９９４号公報JP-A-2010-126994

ところで、防水シートを敷設した状態では、防水シートは、シート固定具の設置箇所以外の範囲では断熱材の上に載置されているだけの状態となっているから、例えば風による揚力の作用や他の要因により防水シートがバタつく現象（いわゆるフラッタリング現象）を生じる場合がある。そのような場合、上記従来の技術では、防水シートを固着するシート固定具がビスで完全に固定されているので、防水シートの動きがビスに直接伝達され、ビスが緩む等の不都合を招き易かった。このため、断熱材を敷設した防水下地に防水シートを支持させるシート固定具の構造には、改善の余地があった。 By the way, when the tarpaulin is laid, the tarpaulin is only placed on the heat insulating material in a range other than the place where the sheet fixture is installed. Other factors may cause the tarpaulin to flutter (so-called fluttering phenomenon). In such a case, in the above-mentioned conventional technique, since the sheet fixing tool for fixing the waterproof sheet is completely fixed by the screw, the movement of the waterproof sheet is directly transmitted to the screw, which tends to cause inconvenience such as loosening of the screw. It was. Therefore, there is room for improvement in the structure of the sheet fixture that supports the waterproof sheet on the waterproof base on which the heat insulating material is laid.

上記実情に鑑み、本発明は、断熱材を敷設した防水下地に防水シートを好適に支持させることができるシート固定具を提供することを目的とする。 In view of the above circumstances, it is an object of the present invention to provide a sheet fixture capable of suitably supporting a waterproof sheet on a waterproof base on which a heat insulating material is laid.

本発明のシート固定具は、
防水下地上に断熱材が敷設されると共に前記断熱材上に防水シートが敷設される屋根において、前記断熱材よりも上側に配置された状態で前記防水下地に釘またはネジによって固定され、前記防水シートが固着されるシート固定具であって、
前記断熱材の表面に沿う姿勢で配置され、表面側に前記防水シートが固着される板状の固着部と、
前記固着部から裏面側に向けて筒状に突出され、前記断熱材に貫入されるボス本体部と、
前記ボス本体部の内部に、前記ボス本体部の軸心方向に沿ってスライド可能な状態かつ前記ボス本体部の突出端から突出可能な状態で挿通支持され、前記ボス本体部から突出した状態で前記断熱材に貫入されて前記釘または前記ネジによって前記防水下地に固定される筒状の延長ボス部と、
前記延長ボス部の前記ボス本体部からの突出量を制限する突出量制限部と、が備えられ、
前記延長ボス部は、前記釘または前記ネジを前記防水下地に固定することで、前記防水下地よりも上側に位置した状態、かつ、前記延長ボス部の下端が前記防水下地の表面に当接した状態で、前記釘または前記ネジによって前記防水下地の表面に押し付けられて固定され、
前記ボス本体部は、前記延長ボス部が前記防水下地に固定された状態において、前記ボス本体部の内周面部と、前記延長ボス部の外周面部と、が摺動しながらスライドすることによって、前記固着部と共に前記軸心方向に沿ってスライド可能である。 The seat fixture of the present invention
In a roof where a heat insulating material is laid on the waterproof base and a tarpaulin is laid on the heat insulating material, the waterproof base is fixed to the waterproof base by nails or screws while being arranged above the heat insulating material. It is a sheet fixture to which the sheet is fixed.
A plate-shaped fixing portion that is arranged along the surface of the heat insulating material and to which the waterproof sheet is fixed to the surface side.
A boss body portion that protrudes in a tubular shape from the fixed portion toward the back surface side and penetrates into the heat insulating material, and a boss body portion.
It is inserted and supported inside the boss main body in a state where it can slide along the axial direction of the boss main body and can protrude from the protruding end of the boss main body, and in a state where it protrudes from the boss main body. A tubular extension boss portion that penetrates the heat insulating material and is fixed to the waterproof base by the nail or the screw.
A protrusion amount limiting portion that limits the protrusion amount of the extension boss portion from the boss main body portion is provided.
By fixing the nail or the screw to the waterproof base, the extension boss portion is located above the waterproof base, and the lower end of the extension boss portion comes into contact with the surface of the waterproof base. In the state, it is pressed and fixed to the surface of the waterproof base by the nail or the screw.
The boss body portion slides while the inner peripheral surface portion of the boss body portion and the outer peripheral surface portion of the extension boss portion slide in a state where the extension boss portion is fixed to the waterproof base. It can slide along the axial direction together with the fixed portion.

本発明によると、突出量制限部によりボス本体部からの延長ボス部の突出量が抑えられているので、施工時に、ボス本体部から延長ボス部が抜け落ちることがない。
そして、防水シートを敷設した状態では、延長ボス部及びボス本体部は断熱材に貫入されると共に、延長ボス部を内部に挿通支持するボス本体部、及び、ボス本体部に連設されて防水シートを固着する固着部は、釘またはネジによって防水下地に固定される延長ボス部に対して、ボス本体部の軸心方向に沿ってスライド可能となっている。
このような構成であるので、防水シートにフラッタリング現象が生じて、固着部及びボス本体部に防水シートの動きが伝達されても、その動きは、ボス本体部と延長ボス部との軸心方向に沿った相対的なスライド移動により吸収され、釘またはネジに伝達され難くなり、釘またはネジに緩みが生じる等の不都合を回避し易くなる。
よって、本発明であれば、断熱材を敷設した防水下地に防水シートを好適に支持させることができる。
また、ボス本体部と延長ボス部とが別部材になっているため、施工に用いる断熱材の厚さが異なる場合であっても、ボス本体部と延長ボス部とのうち一方の部材を断熱材の厚さに依存しない共通の部材とし、ボス本体部と延長ボス部とのうち他方の部材を断熱材の厚さに応じた寸法や形状の部材とすることで、部材の製造コストの低減や部材の管理の手間の削減を図ることができる。なお、本発明において、前記ボス本体部と前記延長ボス部とは、前記軸心方向における複数箇所で摺動しながらスライドすると好適である。 According to the present invention, since the amount of protrusion of the extension boss portion from the boss main body portion is suppressed by the protrusion amount limiting portion, the extension boss portion does not come off from the boss main body portion during construction.
When the waterproof sheet is laid, the extension boss portion and the boss body portion are penetrated into the heat insulating material, and the extension boss portion is inserted and supported inside the boss body portion and the boss body portion are continuously provided for waterproofing. The fixing portion for fixing the sheet is slidable along the axial direction of the boss main body with respect to the extension boss portion fixed to the waterproof base by nails or screws.
With such a configuration, even if a fluttering phenomenon occurs in the waterproof sheet and the movement of the waterproof sheet is transmitted to the fixing portion and the boss main body portion, the movement is the axial center of the boss main body portion and the extension boss portion. It is absorbed by the relative sliding movement along the direction, is difficult to be transmitted to the nail or the screw, and it becomes easy to avoid inconveniences such as loosening of the nail or the screw.
Therefore, according to the present invention, the waterproof sheet can be suitably supported on the waterproof base on which the heat insulating material is laid.
Further, since the boss main body and the extension boss are separate members, even if the thickness of the heat insulating material used for construction is different, one of the boss main body and the extension boss is heat-insulated. By using a common member that does not depend on the thickness of the material and making the other member of the boss body and the extension boss part of the size and shape according to the thickness of the heat insulating material, the manufacturing cost of the member can be reduced. And the labor of managing parts can be reduced. In the present invention, it is preferable that the boss main body portion and the extension boss portion slide while sliding at a plurality of locations in the axial direction.

本発明において、
前記延長ボス部は、前記ボス本体部の内部に、前記軸心周りに回動可能な状態で支持されていると好適である。 In the present invention
It is preferable that the extension boss portion is supported inside the boss main body portion in a state of being rotatable around the axis.

本構成によれば、ボス本体部と延長ボス部とが、軸心周りに相対回動可能となっているので、防水シートの動きにより固着部を回転させるような力が発生した場合であっても、防水シートの動きが、固着部に連設されるボス本体部と延長ボス部との間の軸心周りの相対回転により吸収され、釘またはネジに伝達され難くなり、釘またはネジに緩みが生じる等の不都合を回避し易くなる。 According to this configuration, the boss main body and the extension boss can rotate relative to each other around the axis, so that the movement of the tarpaulin causes a force to rotate the fixed portion. However, the movement of the tarpaulin is absorbed by the relative rotation around the axis between the boss body and the extension boss that are connected to the fixed part, making it difficult to transmit to the nail or screw and loosening to the nail or screw. It becomes easy to avoid inconveniences such as the occurrence of.

本発明において、
前記ボス本体部は、前記固着部に設けられた孔部に、前記軸心周りに回動可能な状態で支持されていると好適である。 In the present invention
It is preferable that the boss main body is supported by a hole provided in the fixing portion in a state of being rotatable around the axis.

本構成によれば、固着部とボス本体部とが、軸心周りに相対回動可能となっているので、防水シートの動きにより固着部を回転させるような力が発生した場合であっても、防水シートの動きが、固着部とボス本体部との間の軸心周りの相対回転により吸収され、釘またはネジに伝達され難くなり、釘またはネジに緩みが生じる等の不都合を回避し易くなる。 According to this configuration, the fixed portion and the boss main body portion can rotate relative to each other around the axis, so that even when a force for rotating the fixed portion is generated due to the movement of the waterproof sheet. , The movement of the waterproof sheet is absorbed by the relative rotation around the axis between the fixed part and the boss body part, it becomes difficult to be transmitted to the nail or screw, and it is easy to avoid inconveniences such as loosening of the nail or screw. Become.

本発明のシート固定具は、
防水下地上に断熱材が敷設されると共に前記断熱材上に防水シートが敷設される屋根において、前記断熱材よりも上側に配置された状態で前記防水下地に釘またはネジによって固定され、前記防水シートが固着されるシート固定具であって、
前記断熱材の表面に沿う姿勢で配置され、表面側に前記防水シートが固着される板状の固着部と、
前記固着部から裏面側に向けて筒状に突出され、前記断熱材に貫入されるボス本体部と、
前記ボス本体部の内部に、前記ボス本体部の軸心方向に沿ってスライド可能な状態かつ前記ボス本体部の突出端から突出可能な状態で挿通支持され、前記ボス本体部から突出した状態で前記断熱材に貫入されて前記釘または前記ネジによって前記防水下地に固定される筒状の延長ボス部と、
前記ボス本体部の内周部に前記ボス本体部の内周側に向けて突出する状態で設けられた第一突出部と、前記延長ボス部の外周部に前記延長ボス部の外周側に向けて突出する状態で設けられた第二突出部と、を有し、前記延長ボス部の前記ボス本体部からの突出量を制限する突出量制限部と、
前記第一突出部と前記第二突出部とに亘って設けられ、最大突出位置側から前記最大突出位置よりも突出量の小さい中立突出位置に向けて前記延長ボス部を付勢する付勢機構としての圧縮スプリングと、が備えられ、
前記ボス本体部は、前記延長ボス部が前記防水下地に固定された状態において、前記固着部と共に前記軸心方向に沿ってスライド可能であって、
前記軸心方向において前記第二突出部が前記第一突出部に当接することで前記延長ボス部の前記ボス本体部からの突出量が制限される。 The seat fixture of the present invention
In a roof where a heat insulating material is laid on the waterproof base and a tarpaulin is laid on the heat insulating material, the waterproof base is fixed to the waterproof base by nails or screws while being arranged above the heat insulating material. It is a sheet fixture to which the sheet is fixed.
A plate-shaped fixing portion that is arranged along the surface of the heat insulating material and to which the waterproof sheet is fixed to the surface side.
A boss body portion that protrudes in a tubular shape from the fixed portion toward the back surface side and penetrates into the heat insulating material, and a boss body portion.
It is inserted and supported inside the boss main body in a state where it can slide along the axial direction of the boss main body and can protrude from the protruding end of the boss main body, and in a state where it protrudes from the boss main body. A tubular extension boss portion that penetrates the heat insulating material and is fixed to the waterproof base by the nail or the screw.
The first protruding portion provided on the inner peripheral portion of the boss main body portion so as to project toward the inner peripheral side of the boss main body portion, and the outer peripheral portion of the extended boss portion toward the outer peripheral side of the extended boss portion. A second protruding portion provided in a protruding state, and a protruding amount limiting portion that limits the protruding amount of the extended boss portion from the boss main body portion.
An urging mechanism provided over the first protruding portion and the second protruding portion to urge the extension boss portion from the maximum protruding position side toward a neutral protruding position having a smaller protrusion amount than the maximum protruding position. As with compression springs,
The boss body portion can slide along the axial direction together with the fixing portion in a state where the extension boss portion is fixed to the waterproof base.
The axis in the center direction in the second projecting portion is the first projecting portion and the projecting amount from the boss body of the extension boss is Ru limited by abutment.

断熱材は、例えば、経年変化等の要因で厚さが減少するようなことがあり、その場合には、防水シートや固着部が断熱材から浮き上がった状態となり易い。そのような状態で、例えば、防水シートのうち固着部の付近の箇所を人が踏む等すると、固着部の傾斜等に起因して防水シートに局所的な応力がかかり、防水シートの破れを招くおそれがある。
本構成によれば、付勢機構によりボス本体部が断熱材側へ常時押し付けられているので、例えば、断熱材が経年変化等の要因で厚さが減少した場合であっても、ボス本体部、ボス本体部に連設される固着部、防水シートが、断熱材に近接した状態を維持できるので、上述のような弊害が生じることを防止し易くなる。
また、本構成によれば、ボス本体部のうち内周側に向けて突出する第一突出部と延長ボス部のうち外周側に向けて突出する第二突出部との間に圧縮スプリングを配置して付勢機構を構成しているので、例えば、ボス本体部の外側に付勢機構を配置するような場合に比べて、全体構造をコンパクト化できる。 The thickness of the heat insulating material may decrease due to factors such as aging, and in that case, the waterproof sheet and the fixed portion tend to be lifted from the heat insulating material. In such a state, for example, if a person steps on a part of the waterproof sheet near the fixed portion, local stress is applied to the waterproof sheet due to the inclination of the fixed portion, which causes the waterproof sheet to be torn. There is a risk.
According to this configuration, the boss body is constantly pressed against the heat insulating material by the urging mechanism. Therefore, even if the thickness of the heat insulating material is reduced due to aging or the like, the boss body is pressed. Since the fixed portion and the waterproof sheet that are continuously provided to the boss main body can maintain a state close to the heat insulating material, it becomes easy to prevent the above-mentioned adverse effects from occurring.
Further , according to this configuration, a compression spring is arranged between the first protruding portion of the boss main body portion that protrudes toward the inner peripheral side and the second protruding portion of the extended boss portion that protrudes toward the outer peripheral side. Since the urging mechanism is configured, for example, the overall structure can be made more compact than in the case where the urging mechanism is arranged on the outside of the boss main body.

本発明において、
前記軸心方向における前記ボス本体部の長さは、前記延長ボス部が最も突出した状態において前記ボス本体部の上端部と前記延長ボス部の上端部との距離が前記ボス本体部の下端部と前記延長ボス部の下端部との距離よりも大きくなるように、前記軸心方向における前記延長ボス部の長さよりも長く設定されていると好適である。 In the present invention
The length of the boss body portion in the axial direction, the lower end portion of the distance between the upper end of the upper portion and the extension boss of the boss main body in a state in which the extension boss is the most prominent are the boss body portion It is preferable that the length is set longer than the length of the extension boss portion in the axial direction so as to be larger than the distance between the extension boss portion and the lower end portion of the extension boss portion.

本構成によれば、例えば、固着部の上から防水シートを踏む等した場合であっても、ボス本体部の下端部が防水下地側に押し付けられた状態になると、その状態では、釘またはネジによって固定される延長ボス部の上端部がボス本体部の上端部よりも上方に過度に突出しないものとなる。これにより、延長ボス部や延長ボス部を固定する釘やネジの拡径頭部が防水シートを下方側から突き破るいわゆる踏み抜きが生じ難くなる。 According to this configuration, for example, even when the waterproof sheet is stepped on from the fixed portion, when the lower end portion of the boss body portion is pressed against the waterproof base side, a nail or a screw is used in that state. The upper end portion of the extension boss portion fixed by is not excessively projected upward from the upper end portion of the boss main body portion. As a result, it becomes difficult for the enlarged head of the nail or screw fixing the extension boss portion or the extension boss portion to break through the waterproof sheet from the lower side, so-called stepping out.

防水シートを敷設した状態におけるシート固定具等を示す断面図である。It is sectional drawing which shows the sheet fixture and the like in the state which laid the waterproof sheet. シート固定具の構成を示す分解斜視図である。It is an exploded perspective view which shows the structure of the seat fixture. シート固定具の構成を示す断面図である。It is sectional drawing which shows the structure of the seat fixture. シート固定具の固定に用いるアタッチメント及び空気式鋲打機等を示す分解斜視図である。It is an exploded perspective view which shows the attachment used for fixing a seat fixture, a pneumatic tacking machine, and the like. シート固定具を固定する際の状態を示す断面図である。It is sectional drawing which shows the state at the time of fixing a seat fixture. 断熱材が経年変化等の要因で厚さが減少した状態におけるシート固定具等を示す断面図である。It is sectional drawing which shows the sheet fixture and the like in the state where the thickness of the heat insulating material is reduced due to the aging and the like. 別実施形態のシート固定具等を示す断面図である。It is sectional drawing which shows the sheet fixing tool of another embodiment. 別実施形態のシート固定具等を示す断面図である。It is sectional drawing which shows the sheet fixing tool of another embodiment. 別実施形態のシート固定具等を示す断面図である。It is sectional drawing which shows the sheet fixing tool of another embodiment.

以下、本発明の一例である実施形態を図面に基づいて説明する。
〔シート固定具等の概要について〕
図１等に示すシート固定具１は、防水下地２上に断熱材３が敷設されると共に断熱材３上に防水シート４が敷設される屋根において、断熱材３よりも上側に配置された状態で防水下地２に釘５によって固定され、防水シート４が固着されるものである。詳しくは図示しないが、シート固定具１は、屋根の各箇所に所定間隔を空けて複数配置され、防水シート４は、屋根の各箇所でシート固定具１を用いて防水下地２に支持されるようになっている。 Hereinafter, embodiments that are an example of the present invention will be described with reference to the drawings.
[Overview of seat fixtures, etc.]
The sheet fixture 1 shown in FIG. 1 and the like is in a state where the heat insulating material 3 is laid on the waterproof base 2 and the waterproof sheet 4 is laid on the heat insulating material 3 and is arranged above the heat insulating material 3. The waterproof sheet 4 is fixed to the waterproof base 2 by the nail 5. Although not shown in detail, a plurality of sheet fixtures 1 are arranged at each location on the roof at predetermined intervals, and the waterproof sheet 4 is supported by the waterproof base 2 at each location on the roof using the sheet fixture 1. It has become like.

図１等に示す防水下地２は、本実施形態では、所定の厚さを有するコンクリート下地で構成されている。図１等に示す断熱材３は、断熱素材からなる板状の部材である。断熱材３の材質としては、例えば、ポリスチレン、ウレタン、イソシアネート等の種々のものを採用できる。また、図１等に示す防水シート４は、可撓性を有し、例えば、塩化ビニル等の合成樹脂で構成されている。 In the present embodiment, the waterproof base 2 shown in FIG. 1 and the like is made of a concrete base having a predetermined thickness. The heat insulating material 3 shown in FIG. 1 and the like is a plate-shaped member made of the heat insulating material. As the material of the heat insulating material 3, for example, various materials such as polystyrene, urethane, and isocyanate can be adopted. Further, the waterproof sheet 4 shown in FIG. 1 and the like has flexibility and is made of, for example, a synthetic resin such as vinyl chloride.

〔シート固定具の具体構成について〕
図１〜図３、図５、図６等に示すように、シート固定具１には、防水シート４を固定する磁性体金属製のディスク状で筒状の固着部６と、固着部６に組み合わされる樹脂製で筒状のボス本体部７と、ボス本体部７の内部に挿通支持される金属製の延長ボス部８と、ボス本体部７と延長ボス部８との間に配置されてボス本体部７を押し下げるように付勢力を作用させる付勢機構９と、が備えられている。固着部６とボス本体部７とは組み合わせることにより一体の筒型フランジ体１０を構成することができる。 [Specific configuration of seat fixture]
As shown in FIGS. 1 to 3, 5, 6, 6 and the like, the sheet fixture 1 has a disk-shaped and tubular fixing portion 6 made of a magnetic metal for fixing the waterproof sheet 4 and a fixing portion 6. A resin-made tubular boss body 7 to be combined, a metal extension boss 8 inserted and supported inside the boss body 7, and arranged between the boss body 7 and the extension boss 8. An urging mechanism 9 for exerting an urging force so as to push down the boss main body 7 is provided. By combining the fixing portion 6 and the boss main body portion 7, an integral tubular flange body 10 can be formed.

〔固着部について〕
図１、図５、図６に示すように、固着部６には、その中央部に円形の孔部１２が設けられている。固着部６における孔部１２の周囲には周方向に均等に並べて隆起するリブ部１２Ａが複数設けられている。固着部６には、表面側に防水シート４が固着される固着面１１が備えられている。固着面１１には、ホットメルト剤や塩化ビニル等の熱可塑性樹脂が塗布されている。固着部６は、断熱材３の表面に沿う姿勢で配置される。 [About the fixed part]
As shown in FIGS. 1, 5, and 6, the fixing portion 6 is provided with a circular hole portion 12 at the center thereof. A plurality of rib portions 12A that are evenly arranged and raised in the circumferential direction are provided around the hole portion 12 in the fixing portion 6. The fixing portion 6 is provided with a fixing surface 11 to which the waterproof sheet 4 is fixed on the surface side. A thermoplastic resin such as a hot melt agent or vinyl chloride is applied to the fixing surface 11. The fixing portion 6 is arranged in a posture along the surface of the heat insulating material 3.

〔ボス本体部と延長ボス部について〕
図１、図５、図６に示すように、ボス本体部７は、その上部に、固着部６の孔部１２よりも外径が大きな鍔状のフランジ部１８を有している。ボス本体部７の下端側は、下方に向かうほど外径が小さくなる下すぼまり形状となっている。ボス本体部７の上下中間部は、外径が一定となっている。ボス本体部７の内周部には、大径部７Ａと、その大径部７Ａの下方に設けられ、大径部７Ａよりも径の小さな小径部７Ｂとが設けられている。大径部７Ａと小径部７Ｂに亘っては、図１に示すように、傾斜状の表面を備えた第一突出部２０が設けられている。第一突出部２０は、ボス本体部７の内周部においてボス本体部７の内周側に向けて突出する状態で設けられている。 [About the boss body and extension boss]
As shown in FIGS. 1, 5, and 6, the boss main body portion 7 has a flange-shaped flange portion 18 having a larger outer diameter than the hole portion 12 of the fixing portion 6 at the upper portion thereof. The lower end side of the boss main body 7 has a downward squeeze shape in which the outer diameter becomes smaller toward the bottom. The outer diameter of the upper and lower middle portions of the boss main body 7 is constant. The inner peripheral portion of the boss main body 7 is provided with a large diameter portion 7A and a small diameter portion 7B provided below the large diameter portion 7A and having a diameter smaller than that of the large diameter portion 7A. As shown in FIG. 1, a first protruding portion 20 having an inclined surface is provided over the large diameter portion 7A and the small diameter portion 7B. The first protruding portion 20 is provided in a state of projecting toward the inner peripheral side of the boss main body 7 at the inner peripheral portion of the boss main body 7.

図３等に示すように、ボス本体部７には、外周部の上端側におけるフランジ部１８の下方箇所に、突起状の係合部１７が設けられている。係合部１７は、固着部６を位置決め状態で係合可能となっている。具体的には、ボス本体部７に外嵌させた固着部６の孔部１２が、係合部１７を乗り越えるまで嵌合を深めると、抜け止め状態に両者を係合させることができる。これにより、固着部６とボス本体部７とが組み合わされて、一体の筒型フランジ体１０となる。 As shown in FIG. 3 and the like, the boss main body 7 is provided with a protruding engaging portion 17 at a position below the flange 18 on the upper end side of the outer peripheral portion. The engaging portion 17 is capable of engaging the fixing portion 6 in a positioned state. Specifically, when the hole portion 12 of the fixing portion 6 fitted to the boss main body portion 7 is deeply fitted until it gets over the engaging portion 17, the two can be engaged with each other in a retaining state. As a result, the fixing portion 6 and the boss main body portion 7 are combined to form an integrated tubular flange body 10.

図１、図６等に示すように、延長ボス部８の外周部には、拡径部８Ａと、その拡径部８Ａよりも下方の位置に設けられ、拡径部８Ａよりも径が小さな縮径部８Ｂと、が設けられている。拡径部８Ａと縮径部８Ｂとに亘っては、図１に示すように、傾斜状の表面を備えた第二突出部２１が設けられている。第二突出部２１の表面の傾斜角度は、第一突出部２０の表面の傾斜角度に対応したものになっている（同じに揃えられている）。延長ボス部８の拡径部８Ａと第二突出部２１とは、延長ボス部８の外周部において延長ボス部８の外周側に向けて突出する状態で設けられている。 As shown in FIGS. 1, 6 and the like, the outer peripheral portion of the extension boss portion 8 is provided with a diameter-expanded portion 8A and a position below the diameter-expanded portion 8A, and has a smaller diameter than the diameter-expanded portion 8A. A reduced diameter portion 8B is provided. As shown in FIG. 1, a second protruding portion 21 having an inclined surface is provided between the enlarged diameter portion 8A and the reduced diameter portion 8B. The inclination angle of the surface of the second protrusion 21 corresponds to the inclination angle of the surface of the first protrusion 20 (they are aligned in the same manner). The enlarged diameter portion 8A and the second protruding portion 21 of the extension boss portion 8 are provided so as to project toward the outer peripheral side of the extension boss portion 8 at the outer peripheral portion of the extension boss portion 8.

延長ボス部８は、ボス本体部７の内部に、ボス本体部７の軸心Ｘ方向に沿ってスライド可能な状態かつボス本体部７の突出端から突出可能な状態で挿通支持される。延長ボス部８は、ボス本体部７から突出した状態で断熱材３に貫入されて釘５によって防水下地２に固定される。延長ボス部８の内周部における上端部には、釘５の拡径頭部３３を係止可能な係止部３４が備えられている。延長ボス部８の内周部における係止部３４よりも下方の箇所では内径が一定になっている。 The extension boss portion 8 is inserted and supported inside the boss main body 7 in a state where it can slide along the axial X direction of the boss main body 7 and can protrude from the protruding end of the boss main body 7. The extension boss portion 8 is penetrated into the heat insulating material 3 in a state of protruding from the boss main body portion 7, and is fixed to the waterproof base 2 by the nail 5. An upper end portion of the inner peripheral portion of the extension boss portion 8 is provided with a locking portion 34 capable of locking the enlarged diameter head 33 of the nail 5. The inner diameter is constant at a portion of the inner peripheral portion of the extension boss portion 8 below the locking portion 34.

ボス本体部７の大径部７Ａの内周面と延長ボス部８の拡径部８Ａの外周面とが摺動可能となっており、且つ、ボス本体部７の小径部７Ｂの内周面と延長ボス部８の縮径部８Ｂの外周面とが摺動可能となっている。このため、ボス本体部７が延長ボス部８に対してぐらつき難くなっている。ボス本体部７の大径部７Ａの内周面と、ボス本体部７の小径部７Ｂの内周面と、は本発明の『ボス本体部の内周面部』である。また、延長ボス部８の拡径部８Ａの外周面と、延長ボス部８の縮径部８Ｂの外周面と、は本発明の『延長ボス部の外周面部』である。即ち、ボス本体部７と延長ボス部８とは、軸心Ｘ方向における複数箇所（本実施形態では２箇所）で摺動しながらスライドする。 The inner peripheral surface of the large diameter portion 7A of the boss main body 7 and the outer peripheral surface of the enlarged diameter portion 8A of the extended boss 8 are slidable, and the inner peripheral surface of the small diameter portion 7B of the boss main body 7 is slidable. And the outer peripheral surface of the reduced diameter portion 8B of the extension boss portion 8 are slidable. Therefore, the boss main body portion 7 is less likely to wobble with respect to the extension boss portion 8. The inner peripheral surface of the large diameter portion 7A of the boss main body 7 and the inner peripheral surface of the small diameter portion 7B of the boss main body 7 are the "inner peripheral surface of the boss main body" of the present invention. Further, the outer peripheral surface of the enlarged diameter portion 8A of the extension boss portion 8 and the outer peripheral surface of the reduced diameter portion 8B of the extension boss portion 8 are the “outer peripheral surface portion of the extension boss portion” of the present invention. That is, the boss main body portion 7 and the extension boss portion 8 slide while sliding at a plurality of locations (two locations in the present embodiment) in the axial X direction.

図１等に示すように、防水シート４を敷設した状態において、ボス本体部７は、固着部６に設けられた円形状の孔部１２に、軸心Ｘ周りに相対回動可能な状態で支持されている。ボス本体部７は、固着部６から裏面側に向けて筒状に突出され、断熱材３に貫入されるものとなっている。ボス本体部７は、延長ボス部８が防水下地２に固定された状態において、固着部６と共に軸心Ｘ方向に沿ってスライド可能である。ボス本体部７の軸心Ｘ方向は、釘５の貫入方向に沿っている。また、延長ボス部８は、ボス本体部７の内部に、軸心Ｘ周りに回動可能な状態で支持されている（図１の回動方向Ｄ参照）。 As shown in FIG. 1 and the like, in the state where the waterproof sheet 4 is laid, the boss main body 7 is in a state where it can rotate relative to the axis X in the circular hole 12 provided in the fixing portion 6. It is supported. The boss main body portion 7 projects in a tubular shape from the fixing portion 6 toward the back surface side, and penetrates into the heat insulating material 3. The boss main body portion 7 can slide along the axial center X direction together with the fixing portion 6 in a state where the extension boss portion 8 is fixed to the waterproof base 2. The axis X direction of the boss main body 7 is along the penetration direction of the nail 5. Further, the extension boss portion 8 is supported inside the boss main body portion 7 in a state of being rotatable around the axis X (see the rotation direction D in FIG. 1).

図１等に示すように、軸心Ｘ方向におけるボス本体部７の長さと延長ボス部８の長さは、延長ボス部８が最も突出した状態（後述する最大突出位置Ｐ１に位置する状態）において、ボス本体部７の上端部１３と延長ボス部８の上端部１４との距離Ｔ１が、ボス本体部７の下端部１５と延長ボス部８の下端部１６との距離Ｔ２よりも大きくなるように設定されている。 As shown in FIG. 1 and the like, the length of the boss main body 7 and the length of the extension boss 8 in the axial X direction are the state in which the extension boss 8 is most projected (the state in which the extension boss 8 is located at the maximum protrusion position P1 described later). The distance T1 between the upper end 13 of the boss body 7 and the upper end 14 of the extension boss 8 is larger than the distance T2 between the lower end 15 of the boss body 7 and the lower end 16 of the extension boss 8. Is set to.

また、図６に示すように、ボス本体部７の下端部１５が延長ボス部８の下端部１６と揃った状態となる場合には、延長ボス部８の上端部１４及び釘５の拡径頭部３３が、ボス本体部７の上端部１３と略同じ高さに位置するようになっている。 Further, as shown in FIG. 6, when the lower end portion 15 of the boss main body portion 7 is aligned with the lower end portion 16 of the extension boss portion 8, the diameter of the upper end portion 14 of the extension boss portion 8 and the nail 5 is expanded. The head 33 is positioned at substantially the same height as the upper end 13 of the boss body 7.

図１〜図３、図５、図６に示すように、ボス本体部７と延長ボス部８とは、別部材となっている。また、本実施形態では、ボス本体部７と延長ボス部８とは、互いに異なる材質になっており、具体的には、延長ボス部８とボス本体部７とのうち一方が金属製で、他方が、樹脂製となっている。より具体的には、ボス本体部７が、樹脂製となっており、延長ボス部８が、金属製となっている。 As shown in FIGS. 1 to 3, 5 and 6, the boss main body portion 7 and the extension boss portion 8 are separate members. Further, in the present embodiment, the boss main body 7 and the extension boss 8 are made of different materials. Specifically, one of the extension boss 8 and the boss main body 7 is made of metal. The other is made of resin. More specifically, the boss main body 7 is made of resin, and the extension boss 8 is made of metal.

図１等に示すように、固着部６と釘５の下部との間には、断熱材３が介在しているので、固着部６と釘５の下部との間には、温度差が生じ易い。例えば、日が照っている昼間は屋外側に位置する固着部６よりも屋内側に近い釘５側の方が低温になり、夜間は屋外側に位置する固着部６よりも屋内側に近い釘５側の方が高温になるといったように、固着部６側と釘５側との間の温度の高低関係が時間経過に応じて交互に逆転する場合がある。本実施形態では、ボス本体部７を樹脂製としていることにより、断熱材３の上方に位置する磁性体金属製の固着部６と釘５との間で熱伝達が生じ難くすることができる。これにより、釘５の周辺で結露が生じにくくなり、釘５に錆び等の劣化が生じ難くなる。 As shown in FIG. 1 and the like, since the heat insulating material 3 is interposed between the fixing portion 6 and the lower portion of the nail 5, a temperature difference occurs between the fixing portion 6 and the lower portion of the nail 5. easy. For example, in the daytime when the sun is shining, the temperature of the nail 5 side closer to the indoor side is lower than that of the fixing part 6 located on the outdoor side, and at night it is closer to the indoor side than the fixing part 6 located on the outdoor side. The temperature relationship between the fixing portion 6 side and the nail 5 side may be alternately reversed with the passage of time, such that the temperature on the nail 5 side becomes higher. In the present embodiment, since the boss main body 7 is made of resin, it is possible to prevent heat transfer from occurring between the magnetic metal fixing portion 6 located above the heat insulating material 3 and the nail 5. As a result, dew condensation is less likely to occur around the nail 5, and deterioration such as rust is less likely to occur on the nail 5.

〔突出量制限部について〕
図１、図５、図６に示すように、シート固定具１には、延長ボス部８のボス本体部７からの突出量を制限する突出量制限部１９が備えられている。突出量制限部１９は、上述の第一突出部２０と、上述の第二突出部２１と、を備えて構成されている。図１に示すように、軸心Ｘ方向において第二突出部２１が、第一突出部２０に付勢機構９を介して間接的に当接することで延長ボス部８のボス本体部７からの下方への突出量が制限される。 [About the protrusion amount limiting part]
As shown in FIGS. 1, 5, and 6, the seat fixture 1 is provided with a protrusion amount limiting portion 19 that limits the amount of protrusion of the extension boss portion 8 from the boss main body portion 7. The protrusion amount limiting portion 19 is configured to include the first protrusion 20 described above and the second protrusion 21 described above. As shown in FIG. 1, the second protruding portion 21 indirectly contacts the first protruding portion 20 via the urging mechanism 9 in the X direction of the axial center, so that the extension boss portion 8 comes from the boss main body portion 7. The amount of downward protrusion is limited.

〔付勢機構について〕
図１〜図３、図５、図６に示すように、付勢機構９は、ボス本体部７の第一突出部２０と延長ボス部８の第二突出部２１とに亘って設けられた圧縮スプリング２２で構成されている。圧縮スプリング２２は、延長ボス部８を、最大突出位置Ｐ１（図１参照）側から最大突出位置Ｐ１よりも突出量の小さい中立突出位置Ｐ２（図６参照）に向けて付勢するようになっている。そして、圧縮スプリング２２は、ボス本体部７を防水下地２側に向けて軸心Ｘ方向に付勢することで、筒型フランジ体１０（ボス本体部７及び固着部６）を、断熱材３側に押し付けるようになっている。 [About the urging mechanism]
As shown in FIGS. 1 to 3, 5 and 6, the urging mechanism 9 is provided over the first protruding portion 20 of the boss main body portion 7 and the second protruding portion 21 of the extension boss portion 8. It is composed of a compression spring 22. The compression spring 22 urges the extension boss portion 8 from the maximum protrusion position P1 (see FIG. 1) toward the neutral protrusion position P2 (see FIG. 6) having a smaller protrusion amount than the maximum protrusion position P1. ing. Then, the compression spring 22 urges the boss main body 7 toward the waterproof base 2 side in the axial X direction to heat the tubular flange body 10 (boss main body 7 and fixing portion 6) into the heat insulating material 3. It is designed to be pressed to the side.

〔アタッチメントについて〕
図４、図５に示すように、シート固定具１の固定には、空気式鋲打機２３が用いられる。空気式鋲打機２３の筒状の先端部には、空気式鋲打機２３の仕様に適合する筒状のアタッチメント２４が組み付けられる。アタッチメント２４は、内周部が段差状になっている。アタッチメント２４には、空気式鋲打機２３の先端部を取り付ける取付部２５と、固着部６を磁力で一時的に連結させることが可能な鍔状の連結部２６と、延長ボス部８の上端部１４の上面に対して内径が同じとなる状態で下面が突き合わせられる先端部２６Ａと、が備えられている。連結部２６には、磁石２７が周方向に並べて複数内蔵されている。 [About attachments]
As shown in FIGS. 4 and 5, a pneumatic tacking machine 23 is used for fixing the seat fixture 1. A tubular attachment 24 conforming to the specifications of the pneumatic tacking machine 23 is attached to the tubular tip of the pneumatic tacking machine 23. The inner peripheral portion of the attachment 24 has a stepped shape. The attachment 24 has an attachment portion 25 for attaching the tip end portion of the pneumatic tacking machine 23, a brim-shaped connecting portion 26 capable of temporarily connecting the fixing portion 6 with a magnetic force, and the upper end of the extension boss portion 8. A tip portion 26A is provided so that the lower surface is abutted against the upper surface of the portion 14 with the same inner diameter. A plurality of magnets 27 are built in the connecting portion 26 by arranging them in the circumferential direction.

〔断熱防水屋根構造の施工方法について〕
上記シート固定具１等を用いた断熱防水屋根構造の施工方法について説明する。
まず、図３等に示すように、ボス本体部７の係合部１７に固着部６を係合させることにより、一体の筒型フランジ体１０にする。そして、筒型フランジ体１０におけるボス本体部７の内側に、延長ボス部８を落とし込んで装着する。この場合、突出量制限部１９を設けてあるので、第一突出部２０と第二突出部２１との間の相互作用により、ボス本体部７から延長ボス部８が抜け落ちることが防止される。 [About the construction method of the heat insulating and waterproof roof structure]
A method of constructing a heat-insulating and waterproof roof structure using the sheet fixture 1 and the like will be described.
First, as shown in FIG. 3 and the like, the fixing portion 6 is engaged with the engaging portion 17 of the boss main body portion 7 to form an integrated tubular flange body 10. Then, the extension boss portion 8 is dropped and mounted inside the boss main body portion 7 of the tubular flange body 10. In this case, since the protrusion amount limiting portion 19 is provided, the extension boss portion 8 is prevented from falling out from the boss main body portion 7 due to the interaction between the first protrusion portion 20 and the second protrusion portion 21.

次に、図４等に示すように、空気式鋲打機２３における釘５の射出を案内する筒状のバレル部２８の先端にアタッチメント２４を嵌合させて組み付ける。そして、アタッチメント２４の連結部２６と筒型フランジ体１０の固着部６とを、アタッチメント２４に内蔵される磁石２７により磁力結合させる。これにより、図５に示すように、空気式鋲打機２３、アタッチメント２４、筒型フランジ体１０（固着部６、及び、ボス本体部７）、延長ボス部８が、一体化した状態となる。この際、空気式鋲打機２３のバレル部２８の先端部の下面は、アタッチメント２４の内部の上面に突き当てられた状態となっている。また、アタッチメント２４の先端部２６Ａは、ボス本体部７の内部の筒部に入り込んでおり、アタッチメント２４の先端部２６Ａの下面は、延長ボス部８の上端部１４の上面に突き当てられた状態となっている。また、バレル部２８の内筒部と、アタッチメント２４内の下端部の内筒部３０と、延長ボス部８内の内筒部３１とは、一体的に釘５の射出を案内するガイド部３２となる。 Next, as shown in FIG. 4 and the like, the attachment 24 is fitted and assembled to the tip of the tubular barrel portion 28 that guides the injection of the nail 5 in the pneumatic tacking machine 23. Then, the connecting portion 26 of the attachment 24 and the fixing portion 6 of the tubular flange body 10 are magnetically coupled by a magnet 27 built in the attachment 24. As a result, as shown in FIG. 5, the pneumatic tacking machine 23, the attachment 24, the tubular flange body 10 (fixing portion 6 and the boss main body portion 7), and the extension boss portion 8 are integrated. .. At this time, the lower surface of the tip end portion of the barrel portion 28 of the pneumatic tacking machine 23 is in a state of being abutted against the upper surface inside the attachment 24. Further, the tip portion 26A of the attachment 24 is inserted into the inner cylinder portion of the boss body portion 7, and the lower surface of the tip portion 26A of the attachment 24 is in contact with the upper surface of the upper end portion 14 of the extension boss portion 8. It has become. Further, the inner cylinder portion of the barrel portion 28, the inner cylinder portion 30 of the lower end portion in the attachment 24, and the inner cylinder portion 31 in the extension boss portion 8 integrally guide the injection of the nail 5. Will be.

次に、図５に示すように、空気式鋲打機２３に、アタッチメント２４、筒型フランジ体１０（固着部６、及び、ボス本体部７）、延長ボス部８を一体化させた状態で、シート固定具１の延長ボス部８及びボス本体部７を、断熱材３に挿し込んで貫通させ、延長ボス部８の下端部１６が、防水下地２側に押し付けられた状態にする。この状態で、空気式鋲打機２３を操作して、空気式鋲打機２３に内蔵されるピストン２９の作用により、防水下地２に向けて釘５を射出する。射出された釘５は、ガイド部３２に案内されて、防水下地２に突き刺さって固定される。これにより、延長ボス部８が、釘５を介して、釘５の貫入方向（軸心Ｘ方向）に相対動不能、かつ、防水下地２に対して回動不能な状態で、防水下地２に固定される。 Next, as shown in FIG. 5, in a state where the attachment 24, the tubular flange body 10 (fixing portion 6 and the boss main body portion 7), and the extension boss portion 8 are integrated with the pneumatic tacking machine 23. , The extension boss portion 8 and the boss main body portion 7 of the sheet fixture 1 are inserted into the heat insulating material 3 and penetrated, so that the lower end portion 16 of the extension boss portion 8 is pressed against the waterproof base 2 side. In this state, the pneumatic tacking machine 23 is operated, and the nail 5 is ejected toward the waterproof base 2 by the action of the piston 29 built in the pneumatic tacking machine 23. The ejected nail 5 is guided by the guide portion 32 and pierces and is fixed to the waterproof base 2. As a result, the extension boss portion 8 becomes the waterproof base 2 in a state where it cannot move relative to the penetration direction (axis X direction) of the nail 5 and cannot rotate with respect to the waterproof base 2 via the nail 5. It is fixed.

この際、図１等に示すように、釘５の拡径頭部３３が、延長ボス部８の係止部３４に係止され、延長ボス部８の全長と釘５の全長との関係で、防水下地２に対する釘５の貫入深さが決定される。また、図１等に示すように、この場合、釘５の拡径頭部３３の上端部の高さは、延長ボス部８の上端部１４と同じ高さ、または、延長ボス部８の上端部１４よりも低い高さとなっている。言い換えれば、釘５の拡径頭部３３は、延長ボス部８よりも上方へは突出しないようになっている。 At this time, as shown in FIG. 1 and the like, the enlarged diameter head 33 of the nail 5 is locked to the locking portion 34 of the extension boss portion 8, and the relationship between the total length of the extension boss portion 8 and the total length of the nail 5 , The penetration depth of the nail 5 with respect to the waterproof base 2 is determined. Further, as shown in FIG. 1 and the like, in this case, the height of the upper end portion of the enlarged diameter head 33 of the nail 5 is the same as the height of the upper end portion 14 of the extension boss portion 8, or the upper end of the extension boss portion 8. The height is lower than that of the part 14. In other words, the enlarged diameter head 33 of the nail 5 does not protrude upward from the extension boss portion 8.

次に、固着部６の上に、防水シート４を敷設し、防水シート４の弛みをとる。そして、防水シート４、及び、固着部６の固着面１１の上から、周知の誘導加熱装置を当て付け、誘導加熱装置による加熱で固着面１１に塗布された熱可塑性樹脂を溶融させて、防水シート４を固着部６の固着面１１に溶着する。これにより、固着部６に防水シート４が固定され、防水下地２に、釘５とシート固定具１を介して、防水シート４が支持される。 Next, the waterproof sheet 4 is laid on the fixed portion 6 to remove the slack of the waterproof sheet 4. Then, a well-known induction heating device is applied from above the waterproof sheet 4 and the fixing surface 11 of the fixing portion 6, and the thermoplastic resin applied to the fixing surface 11 is melted by heating by the induction heating device to make the tarpaulin waterproof. The sheet 4 is welded to the fixing surface 11 of the fixing portion 6. As a result, the waterproof sheet 4 is fixed to the fixing portion 6, and the waterproof sheet 4 is supported on the waterproof base 2 via the nail 5 and the sheet fixing tool 1.

上記実施形態によれば、防水シート４を固着する固着部６とボス本体部７とが軸心Ｘ周りに相対回動可能（図１の回動方向Ｄ参照）、かつ、ボス本体部７が延長ボス部８に対して軸心Ｘ周りに相対回動可能（図１の回動方向Ｄ参照）、かつ、ボス本体部７が延長ボス部８に対して軸心Ｘ方向（釘５の貫入方向）に相対動可能となっている。このため、フラッタリング現象により防水シート４に動きが生じたとしても、防水シート４の動きやその力が、釘５に伝達され難いものとなる。 According to the above embodiment, the fixing portion 6 for fixing the waterproof sheet 4 and the boss main body portion 7 can rotate relative to the axis X (see the rotation direction D in FIG. 1), and the boss main body portion 7 It can rotate relative to the extension boss portion 8 around the axis X (see rotation direction D in FIG. 1), and the boss body portion 7 has the axis X direction with respect to the extension boss portion 8 (penetration of the nail 5). It is possible to move relative to the direction). Therefore, even if the waterproof sheet 4 moves due to the fluttering phenomenon, it is difficult for the movement of the waterproof sheet 4 and its force to be transmitted to the nail 5.

また、上記実施形態によれば、シート固定具１の延長ボス部８により、断熱材３を押しのけて、延長ボス部８の下端部１６が防水下地２の表面に十分に近付いた状態で、空気式鋲打機２３により釘５を射出するので、例えば、断熱材３の厚さの全てを釘５で貫通させる場合に比べて、釘５の射出力が断熱材３で弱まり難くなり、空気式鋲打機２３の射出力が弱くても、防水下地２に対する釘５の貫入深さを十分に得ることができる。 Further, according to the above embodiment, the heat insulating material 3 is pushed away by the extension boss portion 8 of the sheet fixture 1, and the lower end portion 16 of the extension boss portion 8 is sufficiently close to the surface of the waterproof base 2 with air. Since the nail 5 is ejected by the tacking machine 23, for example, the firing output of the nail 5 is less likely to be weakened by the heat insulating material 3 as compared with the case where the entire thickness of the heat insulating material 3 is penetrated by the nail 5. Even if the firing output of the tacking machine 23 is weak, a sufficient penetration depth of the nail 5 with respect to the waterproof base 2 can be obtained.

また、上記実施形態によれば、空気式鋲打機２３のバレル部２８、アタッチメント２４、延長ボス部８により一体的に、釘５の射出方向を安定させるガイド部３２を構成しているので、釘５の射出方向が安定し、所望の貫入方向で釘５を防水下地２に貫入させることができる。 Further, according to the above embodiment, the barrel portion 28, the attachment 24, and the extension boss portion 8 of the pneumatic tacking machine 23 integrally form a guide portion 32 that stabilizes the injection direction of the nail 5. The injection direction of the nail 5 is stable, and the nail 5 can be penetrated into the waterproof base 2 in a desired penetration direction.

また、上記実施形態によれば、防水下地２にハンマードリル等で下孔を穿孔する必要がなく、空気式鋲打機２３に、アタッチメント２４、シート固定具１を組み付けた状態で、断熱材３にシート固定具１を押し付けて、空気式鋲打機２３を操作して釘５を射出するだけであるので、施工工数や施工の手間を少なくできる。 Further, according to the above embodiment, it is not necessary to drill a pilot hole in the waterproof base 2 with a hammer drill or the like, and the heat insulating material 3 is in a state where the attachment 24 and the sheet fixture 1 are assembled to the pneumatic tacking machine 23. Since the sheet fixing tool 1 is pressed against the machine and the pneumatic tacking machine 23 is operated to eject the nail 5, the number of man-hours for construction and the labor for construction can be reduced.

また、上記実施形態によれば、例えば、施工時に、防水下地２にハンマードリル等で下孔を穿孔する騒音が発生せず、空気式鋲打機２３の釘５を射出する比較的小さな音が発生のみであるので、例えば、防水下地２の下方が居住空間になっている場合であっても、施工音を小さくできる。つまり、上記施工方法は、建物の屋根の改修工事に適したものとなっている。 Further, according to the above embodiment, for example, during construction, the noise of drilling a pilot hole in the waterproof base 2 with a hammer drill or the like is not generated, and a relatively small noise of ejecting the nail 5 of the pneumatic tacking machine 23 is generated. Since it only occurs, the construction noise can be reduced even when, for example, the lower part of the waterproof base 2 is a living space. That is, the above construction method is suitable for the repair work of the roof of the building.

また、上記実施形態によれば、シート固定具１に付勢機構９が備えられているので、例えば、断熱材３が経年変化等の要因で厚さが減少したとしても、図６に示すように、付勢機構９（圧縮スプリング２２）の作用により、ボス本体部７、固着部６、及び、防水シート４が、断熱材３側（防水下地２側）へ押し付けられた状態が維持される。これにより、固着部６に固定された防水シート４や固着部６が、断熱材３から浮き上がることを防止できる。 Further, according to the above embodiment, since the seat fixing tool 1 is provided with the urging mechanism 9, for example, even if the thickness of the heat insulating material 3 is reduced due to aging or the like, as shown in FIG. In addition, the boss main body 7, the fixing portion 6, and the waterproof sheet 4 are maintained in a state of being pressed against the heat insulating material 3 side (waterproof base 2 side) by the action of the urging mechanism 9 (compression spring 22). .. As a result, it is possible to prevent the waterproof sheet 4 and the fixing portion 6 fixed to the fixing portion 6 from rising from the heat insulating material 3.

また、上記実施形態によれば、例えば、固着部６の上側に、例えば、人や物が乗る等して、固着部６やボス本体部７が、断熱材３（防水下地２）側に沈み込んだとしても、ボス本体部７の下端部１５が、防水下地２側に押し付けられた状態になると、延長ボス部８の上端部１４の高さレベル（釘５の拡径頭部３３の高さレベル）と、ボス本体部７の上端部１３の高さレベルとが略揃った状態になる。ボス本体部７は、その状態よりも下方には沈み込まない。このため、釘５や延長ボス部８が防水シート４を突き破る、いわゆる踏み抜きが生じ難いものとなる。 Further, according to the above embodiment, for example, when a person or an object gets on the upper side of the fixing portion 6, the fixing portion 6 or the boss main body portion 7 sinks to the heat insulating material 3 (waterproof base 2) side. Even if it is crowded, when the lower end portion 15 of the boss main body portion 7 is pressed against the waterproof base 2 side, the height level of the upper end portion 14 of the extension boss portion 8 (the height of the enlarged head 33 of the nail 5). The level) and the height level of the upper end 13 of the boss body 7 are substantially aligned. The boss body 7 does not sink below that state. Therefore, it is difficult for the nail 5 and the extension boss portion 8 to break through the waterproof sheet 4, so-called stepping out.

［別実施形態］
以下、上記実施形態に変更を加えた別実施形態を例示する。以下の各別実施形態における構成は、説明している事項の他は、上記実施形態の構成と同様である。各別実施形態は、矛盾が生じない限り、複数組み合わせて上記実施形態に適用できる。なお、本発明の範囲は、各実施形態に示された内容に限定されるものではない。 [Another Embodiment]
Hereinafter, another embodiment in which the above embodiment is modified will be illustrated. The configuration of each of the following embodiments is the same as that of the above-described embodiment except for the matters described. Each of the different embodiments can be applied to the above-described embodiment in combination as long as there is no contradiction. The scope of the present invention is not limited to the contents shown in each embodiment.

（１）上記実施形態では、延長ボス部８が最も突出した状態（最大突出位置Ｐ１に位置する状態）においてボス本体部７の上端部１３と延長ボス部８の上端部１４との距離がボス本体部７の下端部１５と延長ボス部８の下端部１６との距離よりも大きくなるように設定されているがこれに限られない。延長ボス部８が最も突出した状態（最大突出位置Ｐ１に位置する状態）において、ボス本体部７の上端部１３と延長ボス部８の上端部１４との距離が、ボス本体部７の下端部１５と延長ボス部８の下端部１６との距離と同じになるように設定されていたり、ボス本体部７の下端部１５と延長ボス部８の下端部１６との距離よりも小さくなるように設定されていたりしてもよい。 (1) In the above embodiment, the distance between the upper end portion 13 of the boss main body portion 7 and the upper end portion 14 of the extension boss portion 8 is the boss in the state where the extension boss portion 8 is most protruding (the state where the extension boss portion 8 is located at the maximum protrusion position P1). The distance between the lower end portion 15 of the main body portion 7 and the lower end portion 16 of the extension boss portion 8 is set to be larger than the distance, but the distance is not limited to this. In the state where the extension boss portion 8 is most protruding (the state where the extension boss portion 8 is located at the maximum protrusion position P1), the distance between the upper end portion 13 of the boss body portion 7 and the upper end portion 14 of the extension boss portion 8 is the lower end portion of the boss body portion 7. The distance between 15 and the lower end 16 of the extension boss 8 is set to be the same, or smaller than the distance between the lower end 15 of the boss body 7 and the lower end 16 of the extension boss 8. It may be set.

（２）上記実施形態では、ボス本体部７の下端部１５が延長ボス部８の下端部１６と揃った状態となる場合に、延長ボス部８の上端部１４及び釘５の拡径頭部３３が、ボス本体部７の上端部１３と略同じ高さに位置するものが例示されているが、これに限られない。例えば、ボス本体部７の下端部１５が延長ボス部８の下端部１６と揃った状態となる場合に、延長ボス部８の上端部１４及び釘５の拡径頭部３３が、ボス本体部７の上端部１３よりも下方に位置するものであってもよい。 (2) In the above embodiment, when the lower end portion 15 of the boss main body portion 7 is aligned with the lower end portion 16 of the extension boss portion 8, the upper end portion 14 of the extension boss portion 8 and the enlarged head portion of the nail 5 are formed. Although 33 is exemplified at substantially the same height as the upper end portion 13 of the boss main body portion 7, the present invention is not limited to this. For example, when the lower end portion 15 of the boss main body portion 7 is aligned with the lower end portion 16 of the extension boss portion 8, the upper end portion 14 of the extension boss portion 8 and the enlarged head 33 of the nail 5 are aligned with the boss main body portion. It may be located below the upper end portion 13 of 7.

（３）上記実施形態では、圧縮スプリング２２（付勢機構９）を備えるものが例示されているが、これに限られない。例えば、図７〜図９に示すように、圧縮スプリング２２（付勢機構９）が備えられていなくてもよい。 (3) In the above embodiment, the one provided with the compression spring 22 (the urging mechanism 9) is exemplified, but the present invention is not limited to this. For example, as shown in FIGS. 7 to 9, the compression spring 22 (biasing mechanism 9) may not be provided.

図７に示す別実施形態は、上記実施形態のものから、圧縮スプリング２２（付勢機構９）を無くしたものである。図７に示すものでは、軸心Ｘ方向において第二突出部２１が、第一突出部２０に直接的に当接することで延長ボス部８のボス本体部７からの突出量が制限される。 Another embodiment shown in FIG. 7 is the one in which the compression spring 22 (the urging mechanism 9) is eliminated from the above-described embodiment. In the one shown in FIG. 7, the amount of protrusion of the extension boss portion 8 from the boss main body 7 is limited by the second protrusion 21 directly in contact with the first protrusion 20 in the X direction of the axis.

（４）上記実施形態では、第一突出部２０、及び、第二突出部２１が、夫々、平面状の当接面を有するものとして例示されているが、これに限られない。例えば、図８に示す別実施形態のように、第一突出部４０、及び、第二突出部４１が、夫々、球面状の当接面を有するものであってもよい。このようにすると、延長ボス部８に対してボス本体部７は３軸の旋回するような相対動が可能となる。これにより、ボス本体部７から延長ボス部８へ動きが伝達され難くなるので、釘５の緩み等が生じ難くなる。 (4) In the above embodiment, the first protruding portion 20 and the second protruding portion 21 are exemplified as having a flat contact surface, respectively, but the present invention is not limited to this. For example, as in another embodiment shown in FIG. 8, the first protruding portion 40 and the second protruding portion 41 may each have a spherical contact surface. In this way, the boss main body portion 7 can move relative to the extension boss portion 8 so as to rotate in three axes. As a result, it becomes difficult for the movement to be transmitted from the boss main body portion 7 to the extension boss portion 8, so that the nail 5 is less likely to loosen.

（５）上記実施形態では、防水下地２はコンクリート下地で構成されているものが例示されているが、これに限られない。例えば、金属下地で防水下地を構成してもよい。 (5) In the above embodiment, the waterproof base 2 is exemplified by being composed of a concrete base, but the present invention is not limited to this. For example, a waterproof base may be formed of a metal base.

（６）上記実施形態では、釘５を例示しているが、これに代えて、図９に示す別実施形態のように、アンカービスのようなネジ５５を用いてもよい。この場合は、建物の梁等の躯体５０に支持される構造材としての金属下地であるデッキプレートを防水下地５２として用いることができる。デッキプレートで構成される防水下地５２は、金属板を折り曲げて構成され、山部５３と、山部５３に隣接して躯体５０に下方から支持される谷部５４とを有している。この場合、山部５３の上に断熱材３が敷設され、ネジ５５は山部５３に貫通状態で貫入固定される。そして、延長ボス部８の下端部１６が山部５３の表面に押し当てられた状態で山部５３に固定されるので、延長ボス部８に周囲を囲まれて固定されるネジ５５が山部５３に対してぐらつき難くなる。 (6) In the above embodiment, the nail 5 is illustrated, but instead of this, a screw 55 such as an anchor screw may be used as in another embodiment shown in FIG. In this case, a deck plate, which is a metal base as a structural material supported by a skeleton 50 such as a beam of a building, can be used as a waterproof base 52. The waterproof base 52 made of a deck plate is formed by bending a metal plate, and has a mountain portion 53 and a valley portion 54 adjacent to the mountain portion 53 and supported from below by the skeleton 50. In this case, the heat insulating material 3 is laid on the mountain portion 53, and the screw 55 is penetrated and fixed to the mountain portion 53 in a penetrating state. Then, since the lower end portion 16 of the extension boss portion 8 is fixed to the mountain portion 53 in a state of being pressed against the surface of the mountain portion 53, the screw 55 surrounded and fixed by the extension boss portion 8 is a mountain portion. It becomes difficult to wobble with respect to 53.

（７）上記実施形態では、延長ボス部８が、ボス本体部７の内部に、軸心Ｘ周りに回動可能な状態で支持されているものが例示されているが、これに限られない。例えば、延長ボス部８が、ボス本体部７の内部に、軸心Ｘ周りに回転不能な状態で支持されていてもよい。この場合、延長ボス部８の外周部とボス本体部７の内周部と軸心Ｘ方向に沿った凸片と溝部を設け、凸片と溝部とをキー嵌合させる構造等が考えられる。 (7) In the above embodiment, the extension boss portion 8 is supported inside the boss main body portion 7 in a state of being rotatable around the axis X, but the present invention is not limited to this. .. For example, the extension boss portion 8 may be supported inside the boss main body portion 7 in a non-rotatable state around the axis X. In this case, a structure is conceivable in which the outer peripheral portion of the extension boss portion 8, the inner peripheral portion of the boss main body portion 7, and the convex piece and the groove portion along the axis X direction are provided, and the convex piece and the groove portion are key-fitted.

（８）上記実施形態では、アタッチメント２４に、固着部６を磁力で一時的に連結させることが可能な鍔状の連結部２６が一体的に設けられているものが例示されているが、これに限られない。例えば、このような鍔状の連結部２６が設けられていないアタッチメント２４であってもよい。この場合、アタッチメント２４と筒型フランジ体１０とを手等で一体となった状態に保持しながら、空気式鋲打機２３で釘５等の射出を行うものとなる。また、例えば、鍔状の連結部２６が設けられていないアタッチメント２４に、鍔状の連結部２６に相当する部材を後付けで組み付けるようにしてもよい。 (8) In the above embodiment, the attachment 24 is integrally provided with a brim-shaped connecting portion 26 capable of temporarily connecting the fixing portion 6 by a magnetic force. Not limited to. For example, the attachment 24 may not be provided with such a brim-shaped connecting portion 26. In this case, the nail 5 or the like is ejected by the pneumatic tacking machine 23 while holding the attachment 24 and the tubular flange body 10 in an integrated state by hand or the like. Further, for example, a member corresponding to the brim-shaped connecting portion 26 may be retrofitted to the attachment 24 not provided with the brim-shaped connecting portion 26.

（９）上記実施形態では、樹脂製のボス本体部７、金属製の延長ボス部８が例示されているが、これに限られない。例えば、金属製のボス本体部７や樹脂製の延長ボス部８であってもよい。 (9) In the above embodiment, the resin boss main body 7 and the metal extension boss 8 are exemplified, but the present invention is not limited to this. For example, it may be a metal boss main body 7 or a resin extension boss 8.

（１０）上記実施形態では、ボス本体部７と延長ボス部８とが、互いに異なる材質となっているものが例示されているが、これに限られない。例えば、ボス本体部７と延長ボス部８とが、同じ材質であってもよい。 (10) In the above embodiment, the boss main body 7 and the extension boss 8 are made of different materials, but the present invention is not limited to this. For example, the boss main body portion 7 and the extension boss portion 8 may be made of the same material.

（１１）上記実施形態では、固着部６とボス本体部７とが、別部材になっているものが例示されているが、これに限られない。例えば、固着部６とボス本体部７とが同じ部材で一体物として形成されていてもよい。 (11) In the above embodiment, the fixing portion 6 and the boss main body portion 7 are exemplified as separate members, but the present invention is not limited to this. For example, the fixing portion 6 and the boss main body portion 7 may be formed as an integral body by the same member.

（１２）上記実施形態では、固着部６が、ディスク状の部材となっているものが例示されているが、これに限られない。例えば、固着部６が、矩形状の部材となっていてもよい。 (12) In the above embodiment, the fixing portion 6 is an example of a disk-shaped member, but the present invention is not limited to this. For example, the fixing portion 6 may be a rectangular member.

本発明は、防水下地上に断熱材を介在させた状態で防水シートが敷設される防水断熱屋根構造の施工に用いられるシート固定具に好適に利用できる。 INDUSTRIAL APPLICABILITY The present invention can be suitably used for a sheet fixture used for construction of a waterproof and heat insulating roof structure in which a waterproof sheet is laid with a heat insulating material interposed on the waterproof base.

１ ：シート固定具
２，４２ ：防水下地
３ ：断熱材
４ ：防水シート
５ ：釘
６ ：固着部
７ ：ボス本体部
８ ：延長ボス部
９ ：付勢機構
１２ ：孔部
１３ ：上端部
１４ ：上端部
１５ ：下端部
１６ ：下端部
１７ ：係合部
１９ ：突出量制限部
２０，４０ ：第一突出部
２１，４１ ：第二突出部
２２ ：圧縮スプリング
５５ ：ネジ
Ｐ１ ：最大突出位置
Ｐ２ ：中立突出位置
Ｔ１ ：距離
Ｔ２ ：距離
Ｘ ：軸心 1: Sheet fixture 2,42: Waterproof base 3: Insulation material 4: Waterproof sheet 5: Nail 6: Fixed part 7: Boss body part 8: Extension boss part 9: Biasing mechanism 12: Hole part 13: Upper end part 14 : Upper end 15: Lower end 16: Lower end 17: Engagement 19: Protrusion amount limiting part 20, 40: First protrusion 21, 41: Second protrusion 22: Compression spring 55: Screw P1: Maximum protrusion position P2: Neutral protrusion position T1: Distance T2: Distance X: Axial center

Claims (6)

防水下地上に断熱材が敷設されると共に前記断熱材上に防水シートが敷設される屋根において、前記断熱材よりも上側に配置された状態で前記防水下地に釘またはネジによって固定され、前記防水シートが固着されるシート固定具であって、
前記断熱材の表面に沿う姿勢で配置され、表面側に前記防水シートが固着される板状の固着部と、
前記固着部から裏面側に向けて筒状に突出され、前記断熱材に貫入されるボス本体部と、
前記ボス本体部の内部に、前記ボス本体部の軸心方向に沿ってスライド可能な状態かつ前記ボス本体部の突出端から突出可能な状態で挿通支持され、前記ボス本体部から突出した状態で前記断熱材に貫入されて前記釘または前記ネジによって前記防水下地に固定される筒状の延長ボス部と、
前記延長ボス部の前記ボス本体部からの突出量を制限する突出量制限部と、が備えられ、
前記延長ボス部は、前記釘または前記ネジを前記防水下地に固定することで、前記防水下地よりも上側に位置した状態、かつ、前記延長ボス部の下端が前記防水下地の表面に当接した状態で、前記釘または前記ネジによって前記防水下地の表面に押し付けられて固定され、
前記ボス本体部は、前記延長ボス部が前記防水下地に固定された状態において、前記ボス本体部の内周面部と、前記延長ボス部の外周面部と、が摺動しながらスライドすることによって、前記固着部と共に前記軸心方向に沿ってスライド可能であるシート固定具。 In a roof where a heat insulating material is laid on the waterproof base and a tarpaulin is laid on the heat insulating material, the waterproof base is fixed to the waterproof base by nails or screws while being arranged above the heat insulating material. It is a sheet fixture to which the sheet is fixed.
A plate-shaped fixing portion that is arranged along the surface of the heat insulating material and to which the waterproof sheet is fixed to the surface side.
A boss body portion that protrudes in a tubular shape from the fixed portion toward the back surface side and penetrates into the heat insulating material, and a boss body portion.
It is inserted and supported inside the boss main body in a state where it can slide along the axial direction of the boss main body and can protrude from the protruding end of the boss main body, and in a state where it protrudes from the boss main body. A tubular extension boss portion that penetrates the heat insulating material and is fixed to the waterproof base by the nail or the screw.
A protrusion amount limiting portion that limits the protrusion amount of the extension boss portion from the boss main body portion is provided.
By fixing the nail or the screw to the waterproof base, the extension boss portion is located above the waterproof base, and the lower end of the extension boss portion comes into contact with the surface of the waterproof base. In the state, it is pressed and fixed to the surface of the waterproof base by the nail or the screw.
The boss body portion slides while the inner peripheral surface portion of the boss body portion and the outer peripheral surface portion of the extension boss portion slide in a state where the extension boss portion is fixed to the waterproof base. A seat fixture that can slide along the axial direction together with the fixing portion. 前記ボス本体部と前記延長ボス部とは、前記軸心方向における複数箇所で摺動しながらスライドする請求項１に記載のシート固定具。 The seat fixing tool according to claim 1, wherein the boss body portion and the extension boss portion slide while sliding at a plurality of locations in the axial direction. 防水下地上に断熱材が敷設されると共に前記断熱材上に防水シートが敷設される屋根において、前記断熱材よりも上側に配置された状態で前記防水下地に釘またはネジによって固定され、前記防水シートが固着されるシート固定具であって、
前記断熱材の表面に沿う姿勢で配置され、表面側に前記防水シートが固着される板状の固着部と、
前記固着部から裏面側に向けて筒状に突出され、前記断熱材に貫入されるボス本体部と、
前記ボス本体部の内部に、前記ボス本体部の軸心方向に沿ってスライド可能な状態かつ前記ボス本体部の突出端から突出可能な状態で挿通支持され、前記ボス本体部から突出した状態で前記断熱材に貫入されて前記釘または前記ネジによって前記防水下地に固定される筒状の延長ボス部と、
前記ボス本体部の内周部に前記ボス本体部の内周側に向けて突出する状態で設けられた第一突出部と、前記延長ボス部の外周部に前記延長ボス部の外周側に向けて突出する状態で設けられた第二突出部と、を有し、前記延長ボス部の前記ボス本体部からの突出量を制限する突出量制限部と、
前記第一突出部と前記第二突出部とに亘って設けられ、最大突出位置側から前記最大突出位置よりも突出量の小さい中立突出位置に向けて前記延長ボス部を付勢する付勢機構としての圧縮スプリングと、が備えられ、
前記ボス本体部は、前記延長ボス部が前記防水下地に固定された状態において、前記固着部と共に前記軸心方向に沿ってスライド可能であって、
前記軸心方向において前記第二突出部が前記第一突出部に当接することで前記延長ボス部の前記ボス本体部からの突出量が制限されるシート固定具。 In a roof where a heat insulating material is laid on the waterproof base and a tarpaulin is laid on the heat insulating material, the waterproof base is fixed to the waterproof base by nails or screws while being arranged above the heat insulating material. It is a sheet fixture to which the sheet is fixed.
A plate-shaped fixing portion that is arranged along the surface of the heat insulating material and to which the waterproof sheet is fixed to the surface side.
A boss body portion that protrudes in a tubular shape from the fixed portion toward the back surface side and penetrates into the heat insulating material, and a boss body portion.
It is inserted and supported inside the boss main body in a state where it can slide along the axial direction of the boss main body and can protrude from the protruding end of the boss main body, and in a state where it protrudes from the boss main body. A tubular extension boss portion that penetrates the heat insulating material and is fixed to the waterproof base by the nail or the screw.
The first protruding portion provided on the inner peripheral portion of the boss main body portion so as to project toward the inner peripheral side of the boss main body portion, and the outer peripheral portion of the extended boss portion toward the outer peripheral side of the extended boss portion. A second protruding portion provided in a protruding state, and a protruding amount limiting portion that limits the protruding amount of the extended boss portion from the boss main body portion.
An urging mechanism provided over the first protruding portion and the second protruding portion to urge the extension boss portion from the maximum protruding position side toward a neutral protruding position having a smaller protrusion amount than the maximum protruding position. As with compression springs,
The boss body portion can slide along the axial direction together with the fixing portion in a state where the extension boss portion is fixed to the waterproof base.
Sheet fastener protrusion amount Ru is limited from the boss body portion of the extension boss by the second protruding portion comes into contact with the first projecting portion in the axial direction. 前記延長ボス部は、前記ボス本体部の内部に、前記軸心周りに回動可能な状態で支持されている請求項１から３の何れか一項に記載のシート固定具。 The seat fixing tool according to any one of claims 1 to 3, wherein the extension boss portion is supported inside the boss main body portion in a state of being rotatable around the axis. 前記ボス本体部は、前記固着部に設けられた孔部に、前記軸心周りに回動可能な状態で支持されている請求項１から４の何れか一項に記載のシート固定具。 The seat fixing tool according to any one of claims 1 to 4, wherein the boss main body is supported in a hole provided in the fixing portion in a state of being rotatable around the axis. 前記軸心方向における前記ボス本体部の長さは、前記延長ボス部が最も突出した状態において前記ボス本体部の上端部と前記延長ボス部の上端部との距離が前記ボス本体部の下端部と前記延長ボス部の下端部との距離よりも大きくなるように、前記軸心方向における前記延長ボス部の長さよりも長く設定されている請求項１から５の何れか一項に記載のシート固定具。 The length of the boss body portion in the axial direction, the lower end portion of the distance between the upper end of the upper portion and the extension boss of the boss main body in a state in which the extension boss is the most prominent are the boss body portion The sheet according to any one of claims 1 to 5, which is set longer than the length of the extension boss portion in the axial direction so as to be larger than the distance between the extension boss portion and the lower end portion of the extension boss portion. Fixture.
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