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JP7626436B2 - Floor joint cover device - Google Patents
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JP7626436B2 - Floor joint cover device - Google Patents

Floor joint cover device Download PDF

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JP7626436B2
JP7626436B2 JP2021043666A JP2021043666A JP7626436B2 JP 7626436 B2 JP7626436 B2 JP 7626436B2 JP 2021043666 A JP2021043666 A JP 2021043666A JP 2021043666 A JP2021043666 A JP 2021043666A JP 7626436 B2 JP7626436 B2 JP 7626436B2
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support beam
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support
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JP2022143245A (en
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健治 近藤
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カネソウ株式会社
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Description

本発明は、隣接する建造物の床相互間の目地を覆う床用目地カバー装置に関する。 The present invention relates to a floor joint cover device that covers the joints between floors of adjacent buildings.

近年、地震による被害を最小限に留めるために、緩衝機能を備えた免震装置によって下部を支持した建造物が多く建設されている。こうした免震構造の建造物間には、地震による変位を吸収し得る比較的広幅の目地が形成されており、かかる目地を覆う床用目地カバー装置が配設されている。 In recent years, in order to minimize damage caused by earthquakes, many buildings have been constructed whose lower parts are supported by seismic isolation devices with shock-absorbing functions. Relatively wide joints that can absorb displacement caused by earthquakes are formed between buildings with such seismic isolation structures, and floor joint cover devices are installed to cover these joints.

床用目地カバー装置として、例えば特許文献1の構成が提案されている。この構成は、目地を介して隣接する建造物の側壁に両端部が枢支された複数のパンタグラフ状の伸縮リンクと、両建造物の側壁に両端部が枢支された複数の伸縮可能な支持体とが、目地の長手方向に所定間隔をおいて並設され、さらに、目地幅方向に所定間隔をおいて並列されて、各伸縮リンクに枢支され且つ各支持体に摺動可能に乗載される複数の支持バーと、各支持バーに夫々固定されて目地を覆う複数の目地プレートとを備えたものである。かかる従来構成は、支持体によって、複数の目地プレートの重量と該目地プレート上を通過する人や物の重量とを支えることができる。 For example, the configuration of Patent Document 1 has been proposed as a floor joint cover device. This configuration includes multiple pantograph-like telescopic links, both ends of which are pivotally supported on the side walls of adjacent buildings via joints, and multiple extendable supports, both ends of which are pivotally supported on the side walls of both buildings, arranged in parallel at a predetermined interval in the longitudinal direction of the joint, and further includes multiple support bars arranged in parallel at a predetermined interval in the width direction of the joint, pivotally supported on each telescopic link and slidably mounted on each support, and multiple joint plates that are fixed to each support bar and cover the joints. In this conventional configuration, the supports can support the weight of the multiple joint plates and the weight of people and objects passing over the joint plates.

特開2005-248466号公報JP 2005-248466 A

ところで、床用目地カバー装置は、隣接する建造物の床間に設置され、目地を覆う目地プレートによって、該目地と交差する通路の一部を構成する。そして、前記通路の幅に応じて、目地プレートの長さ(目地長手方向の長さ)が設定される。これにより、比較的幅の広い通路を構成する場合には、目地プレートを支持する前記支持体の配設数が増える一方、比較的幅の狭い通路を構成する場合には、前記支持体の配設数が制限される。ここで、伸縮リンクは、前述したように、目地プレートを夫々固定する支持バーを枢支するものであることから、比較的幅の狭い通路を構成する場合にあっても、少なくとも二個配設される。一方で、前記支持体の配設数は、比較的幅の狭い通路の場合に少なくなる。しかし、支持体の配設数を減少すると、前記支持バーを安定して支持し難くなると共に該支持バーおよび目地プレートを支えるために伸縮リンクの負担が増加する。そして、伸縮リンクの負担が増えると、該伸縮リンクがスムーズに伸縮作動し難くなる虞があった。 The floor joint cover device is installed between the floors of adjacent buildings, and a joint plate that covers the joint forms part of the passage that intersects with the joint. The length of the joint plate (the length in the longitudinal direction of the joint) is set according to the width of the passage. As a result, when a relatively wide passage is formed, the number of supports that support the joint plate increases, while when a relatively narrow passage is formed, the number of supports is limited. Here, as described above, the expansion link pivots the support bars that respectively fix the joint plates, so at least two are provided even when a relatively narrow passage is formed. On the other hand, the number of supports is reduced in the case of a relatively narrow passage. However, if the number of supports is reduced, it becomes difficult to stably support the support bar and the burden on the expansion link increases to support the support bar and the joint plate. And if the burden on the expansion link increases, there is a risk that the expansion link will not be able to expand and contract smoothly.

本発明は、比較的幅の狭い通路を構成する場合にあっても、該通路を構成するプレートを安定して支持し且つ安定して円滑に伸縮し得る床用目地カバー装置を提案するものである。 The present invention proposes a floor joint cover device that can stably support the plates that make up the passageway and can expand and contract stably and smoothly, even when a relatively narrow passageway is being constructed.

本発明は、隣接する建造物の床相互間の目地に差し渡され、該目地の幅方向に並列された複数のカバー板を備えた目地カバー体と、目地幅方向へ伸縮可能に形成され、両端部が両建造物の側縁に夫々枢支されると共に、前記目地カバー体の各カバー板が回動可能に連結された複数の伸縮保持体とを備えてなる床用目地カバー装置において、前記伸縮保持体は、複数のリンク片がパンタグラフ状に枢結されて、目地幅方向へ伸縮可能に形成され、両端部が両建造物の側縁に夫々枢結されると共に、前記目地カバー体の各カバー板が枢支された伸縮リンク体と、目地幅方向へ伸縮可能に形成され、前記伸縮リンク体の下方に設けられて、両端部が両建造物の側縁に夫々枢結された伸縮支持梁とを備え、前記伸縮リンク体が下方の伸縮支持梁によって摺動可能に支持されたものであることを特徴とする床用目地カバー装置である。 The present invention is a floor joint cover device comprising a joint cover body that is inserted across the joints between floors of adjacent buildings and has multiple cover plates arranged in parallel in the width direction of the joint, and multiple expandable holders that are formed to be expandable in the joint width direction, both ends of which are pivotally supported on the side edges of both buildings, and each cover plate of the joint cover body is rotatably connected, in which the expandable holder comprises an expandable link body that is formed to be expandable in the joint width direction by multiple link pieces pivoted in a pantograph shape, both ends of which are pivotally connected to the side edges of both buildings, and each cover plate of the joint cover body is pivotally supported, and an expandable support beam that is formed to be expandable in the joint width direction, is provided below the expandable link body, and both ends of which are pivotally connected to the side edges of both buildings, and the expandable link body is slidably supported by the expandable support beam below.

かかる構成にあっては、伸縮保持体が、カバー板を枢支する上側の伸縮リンク体と、該伸縮リンク体を下方から支持する伸縮支持梁とによって構成されたものであるから、目地カバー体の重量と該目地カバー体上を通過する人や物の重量とを、伸縮リンク体を介して伸縮支持梁により支持する。これにより、伸縮リンク体による前記重量の負担を軽減でき、該伸縮リンク体を安定して伸縮作動させることができる。また、伸縮保持体は、上下に配設した伸縮リンク体と伸縮支持梁とにより構成されたものであることから、例えば、比較的幅の狭い通路に配設する場合に、該伸縮保持体の配設数が制限されたとしても、伸縮リンク体のスムーズな伸縮作動を実行可能に保ちつつ、目地カバー体を安定して支持できる。これにより、伸縮保持体の配設数が制限される場合であっても、目地カバー体の重量と該目地カバー体上を通過する人や物の重量とを安定して支持できると共に、伸縮リンク体の伸縮作動によって、目地カバー体を構成する各カバー板を円滑に摺動させることができる。 In this configuration, the telescopic support body is composed of an upper telescopic link body that pivots the cover plate and a telescopic support beam that supports the telescopic link body from below, so the weight of the joint cover body and the weight of people and objects passing over the joint cover body are supported by the telescopic support beam via the telescopic link body. This reduces the burden of the weight on the telescopic link body, and allows the telescopic link body to stably telescope. In addition, since the telescopic support body is composed of telescopic link bodies and telescopic support beams arranged above and below, for example, when arranged in a relatively narrow passage, even if the number of telescopic support bodies is limited, the joint cover body can be stably supported while maintaining the smooth telescopic operation of the telescopic link body. As a result, even if the number of telescopic support bodies is limited, the weight of the joint cover body and the weight of people and objects passing over the joint cover body can be stably supported, and the telescopic operation of the telescopic link body allows each cover plate constituting the joint cover body to slide smoothly.

前述した本発明の床用目地カバー装置にあって、伸縮支持梁は、目地幅方向に沿って配設された中支持梁体と、一端部が両建造物の側縁に夫々枢結されると共に、他端部が前記中支持梁体の左右両側に目地幅方向へ相対的に摺動可能に夫々連結され、該中支持梁体を支持する左右一対の側支持梁体とを備えたものであり、前記中支持梁体は、目地幅方向に沿う中央杆部と、前記中央杆部から左右両側へ夫々突設された回動軸に、回動自在に連結された左右の中回転ローラと、上下方向に間隙をおいて目地幅方向に沿って延成された上下一対の案内部により構成され、前記中央杆部の左右両側に夫々配設された中案内レールとを備え、前記側支持梁体は、一端部が前記建造物の側縁に枢結された、目地幅方向に沿う側梁杆部と、前記側梁杆部から左右一側へ突設された回動軸に回動自在に連結され、前記中案内レールを構成する上下の案内部間に、目地幅方向へ相対的に移動可能に嵌合される側回転ローラと、前記側梁杆部の、前記側回転ローラと同じ左右一側に配設され、上下方向に間隙をおいて目地幅方向に沿って延成された上下一対の案内部により構成されて、当該案内部間に前記中回転ローラが目地幅方向へ相対的に移動可能に嵌合される側案内レールとを備えたものである構成が提案される。 In the floor joint cover device of the present invention described above, the expandable support beam is provided with a central support beam body arranged along the joint width direction, and a pair of left and right side support beam bodies that support the central support beam body, one end of which is pivotally connected to the side edges of both buildings and the other end of which is connected to the left and right sides of the central support beam body so as to be relatively slidable in the joint width direction. The central support beam body is composed of a central rod portion along the joint width direction, left and right central rotating rollers that are rotatably connected to rotating shafts that protrude from the central rod portion on both the left and right sides, and a pair of upper and lower guide portions that extend along the joint width direction with a gap in the vertical direction, and are arranged on both the left and right sides of the central rod portion, The proposed configuration includes a side support beam that is pivotally connected to a side edge of the building and extends along the joint width direction, a side roller that is rotatably connected to a rotating shaft that protrudes from the side beam beam to one side, and is fitted between the upper and lower guide parts that make up the middle guide rail so as to be relatively movable in the joint width direction, and a side guide rail that is arranged on the same left or right side of the side beam beam as the side roller, and is composed of a pair of upper and lower guide parts that extend along the joint width direction with a gap in the vertical direction, and the middle roller is fitted between the guide parts so as to be relatively movable in the joint width direction.

かかる構成にあって、伸縮支持梁は、中支持梁体と左右の側支持梁体との相対的な移動により伸縮するものであり、パンタグラフ状の伸縮リンク体と伸縮の作動態様が異なる。伸縮保持体は、地震時における両建造物の様々な相対変位に追従し易く、目地カバー体を支持する作用効果と該相対変位にスムーズに追従する作用効果との両方を一層安定して発揮できる。
ここで、伸縮支持梁は、中支持梁体の中回転ローラが側支持梁体の側案内レールにより目地幅方向へ相対移動可能とし、且つ側支持梁体の側回転ローラが中支持梁体の中案内レールにより目地幅方向へ相対移動可能とする構成を備えたものであるから、地震時にあっても各回転ローラと各案内レールとの嵌合状態を保つことができ、各回転ローラと各案内レールとの円滑な相対移動を安定して実行できる。これにより、伸縮支持梁は、地震時における両建造物の相対変位に、伸縮支持梁の円滑な伸縮によって安定して追従できる。
In this configuration, the telescopic support beam expands and contracts due to the relative movement between the center support beam body and the left and right side support beam bodies, and the operation mode of the telescopic link body is different from that of the pantograph-like telescopic link body. The telescopic holder can easily follow various relative displacements of the two structures during an earthquake, and can more stably exert both the effect of supporting the joint cover body and the effect of smoothly following the relative displacement.
Here, the telescopic support beam is configured so that the center rotating roller of the center support beam body can move relatively in the joint width direction by the side guide rail of the side support beam body, and the side rotating roller of the side support beam body can move relatively in the joint width direction by the center guide rail of the center support beam body, so that the fitting state of each rotating roller and each guide rail can be maintained even during an earthquake, and smooth relative movement between each rotating roller and each guide rail can be stably executed. As a result, the telescopic support beam can stably follow the relative displacement of both structures during an earthquake by the smooth expansion and contraction of the telescopic support beam.

本発明の床用目地カバー装置にあっては、前述したように、伸縮保持体が、目地カバー体の重量と該目地カバー体上を通過する人や物の重量とを安定して支持できると共に、地震時に両建造物の相対変位に安定かつ円滑に追従して作動できる。これにより、伸縮保持体の伸縮リンク体に連結された目地カバー体の各カバー体を、前記相対変位に従って目地幅方向と目地長手方向とに安定して摺動させることができる。 As described above, in the floor joint cover device of the present invention, the expandable support body can stably support the weight of the joint cover body and the weight of people and objects passing over the joint cover body, and can operate stably and smoothly following the relative displacement of both structures during an earthquake. This allows each cover body of the joint cover body connected to the expandable link body of the expandable support body to slide stably in the joint width direction and the joint length direction in accordance with the relative displacement.

床用目地カバー装置1の施工状態を示す縦断面図である。FIG. 2 is a vertical cross-sectional view showing the installed state of the floor joint cover device 1. 床用目地カバー装置1の施工状態を示す平面図である。FIG. 2 is a plan view showing the installed state of the floor joint cover device 1. 床用目地カバー装置1の施工状態を示す斜視図である。FIG. 2 is a perspective view showing the installed state of the floor joint cover device 1. 目地カバー体11の斜視図である。1 is a perspective view of a joint cover body 11. FIG. 目地カバー体11を省略して示す平面図である。This is a plan view showing the joint cover body 11 omitted. 目地カバー体11を省略して示す斜視図である。This is an oblique view showing the joint cover body 11 omitted. 伸縮リンク体31の平面図である。FIG. 伸縮支持梁51の、(A)平面図と、(B)側面図である。1A and 1B are a plan view and a side view, respectively, of an expandable support beam 51. 伸縮支持梁51を構成する中支持梁体52の、(A)平面図と、(B)側面図である。1A and 1B are a plan view and a side view, respectively, of a middle support beam body 52 that constitutes an expandable support beam 51. FIG. 中支持梁体52の正面図である。A front view of the middle support beam 52. 伸縮支持梁51を構成する側支持梁体53の、(A)平面図と、(B)側面図である。1A and 1B are a plan view and a side view, respectively, of a side support beam body 53 constituting an expandable support beam 51. FIG. 側支持梁体53の、(A)正面図と、(B)図11中のS-S線断面図である。12A is a front view of a side support beam 53, and FIG. 12B is a cross-sectional view taken along line S--S in FIG. (A)図8中のT-T線断面図と、(B)図8中のM-M線断面図である。8A is a cross-sectional view taken along line TT in FIG. 8, and FIG. 8B is a cross-sectional view taken along line MM in FIG. 建造物81,82が近接方向に相対変位した場合の、床用目地カバー装置1の作用説明図である。13 is an explanatory diagram of the operation of the floor joint cover device 1 when the buildings 81 and 82 are displaced relatively in the direction toward each other. FIG. 建造物81,82が左右方向に相対変位した場合の、床用目地カバー装置1の作用説明図である。10 is an explanatory diagram of the operation of the floor joint cover device 1 when buildings 81, 82 are displaced relative to each other in the left-right direction. FIG.

本発明にかかる実施例を添付図面を用いて説明する。
床用目地カバー装置1は、図1~3に示すように、隣接する建造物81,82間に設けられた目地83に配設されて、両建造物81,82を連絡する通路を構成する。建造物81,82はそれぞれ、緩衝機能を備えた免震装置(図示せず)によって下部が支持された免震構造の建造物である。目地83は、建造物81と建造物82との間に所定幅で形成され、地震の際に建造物81と建造物82との水平方向の相対的な揺れを吸収し得るようになっている。
An embodiment of the present invention will be described with reference to the accompanying drawings.
As shown in Figures 1 to 3, the floor joint cover device 1 is disposed in a joint 83 provided between adjacent buildings 81 and 82 to form a passage connecting the two buildings 81 and 82. The buildings 81 and 82 are each a seismically isolated structure whose lower part is supported by a seismic isolation device (not shown) equipped with a shock absorbing function. The joint 83 is formed with a predetermined width between the buildings 81 and 82, and is capable of absorbing the relative horizontal shaking between the buildings 81 and 82 during an earthquake.

尚、本実施例では、目地83の長手方向を、床用目地カバー装置1の左右方向として説明する。すなわち、本実施例の左右方向が、本発明の目地長手方向に相当する。また、建造物81,82から目地83に向かう方向を内方とし、目地83から建造物81,82に向かう方向を外方として、以下で説明する。 In this embodiment, the longitudinal direction of the joint 83 is described as the left-right direction of the floor joint cover device 1. In other words, the left-right direction in this embodiment corresponds to the longitudinal direction of the joint in the present invention. In addition, the direction from the structures 81, 82 toward the joint 83 is described below as the inward direction, and the direction from the joint 83 toward the structures 81, 82 is described below as the outward direction.

建造物81の床85の側縁と建造物82の床86の側縁とには、床用目地カバー装置1を構成する連結基体2,2が、目地83の長手方向に沿って対向状に配設されて、各側縁に固結されている。ここで、建造物81,82の床85,86の側縁には、所定深さで凹ませた支持段縁91,92が設けられており、この支持段縁91,92に、前記連結基体2,2が配設されている。連結基体2は、前記支持段縁91,92の上面を覆う平板状の水平受縁21と、該水平受縁21の外端に左右方向に亘って立設された垂直縁22とを備え、さらに、水平受縁21の内端に、目地83を構成する建造物81,82の壁面に沿って下方へ延出された内側縁23が連成されており、両建造物81,82に配設された連結基体2、2の内側縁23,23間により、両建造物81,82を連絡する通路上における目地幅が規定されている。尚、本実施例にあって、連結基体2を構成する水平受縁21、垂直縁22、および内側縁23は、ステンレス等の鋼板を折曲加工することにより形成されており、図示しないアンカーボルトなどによって建造物81,82の床85,86に固結されている。 At the side edge of the floor 85 of the building 81 and the side edge of the floor 86 of the building 82, the connecting bases 2, 2 constituting the floor joint cover device 1 are arranged facing each other along the longitudinal direction of the joint 83 and are fixed to each side edge. Here, the side edges of the floors 85, 86 of the buildings 81, 82 are provided with support step edges 91, 92 recessed to a predetermined depth, and the connecting bases 2, 2 are arranged on these support step edges 91, 92. The connecting base 2 has a flat horizontal support edge 21 that covers the upper surface of the support step edges 91, 92, and a vertical edge 22 that is erected in the left-right direction at the outer end of the horizontal support edge 21. Furthermore, an inner edge 23 that extends downward along the wall surface of the buildings 81, 82 that constitute the joint 83 is connected to the inner end of the horizontal support edge 21, and the joint width on the passage connecting the two buildings 81, 82 is determined by the inner edges 23, 23 of the connecting bases 2, 2 arranged on both buildings 81, 82. In this embodiment, the horizontal support edge 21, vertical edge 22, and inner edge 23 that constitute the connecting base 2 are formed by bending steel plates such as stainless steel, and are fixed to the floors 85, 86 of the buildings 81, 82 by anchor bolts (not shown).

両建造物81,82の前記水平受縁21,21には、図1,5,6に示すように、夫々の垂直縁22,22寄りに、円柱状の連結杆25,25が対向状に立設され、この一対の連結杆25,25が左右方向に所定間隔をおいて複数設けられている。ここで、本実施例にあっては、四組の前記一対の連結杆25,25が、左右方向の中心線に対して左右対称且つ左右方向に略等間隔となる位置に夫々配設されている。尚、本実施例にあっては、前記連結杆25が、水平受縁21に固結されて該水平受縁21から上方へ突出されたボルトと、該ボルトに外嵌された円筒とから構成されている。 As shown in Figures 1, 5 and 6, cylindrical connecting rods 25, 25 are erected facing each other near the vertical edges 22, 22 of the horizontal supports 21, 21 of both buildings 81, 82, and a plurality of pairs of connecting rods 25, 25 are provided at a predetermined interval in the left-right direction. Here, in this embodiment, four pairs of connecting rods 25, 25 are respectively arranged at positions symmetrical with respect to the center line in the left-right direction and at approximately equal intervals in the left-right direction. In this embodiment, the connecting rods 25 are composed of a bolt fixed to the horizontal support edge 21 and protruding upward from the horizontal support edge 21, and a cylinder fitted onto the bolt.

また、両建造物81,82の前記垂直縁22,22間には、図1~3に示すように、目地カバー体11が差し渡されており、該目地カバー体11により目地83を横断する通路の一部が構成されている。この目地カバー体11は、目地幅方向の中央部分に配置される中央カバー板12と、該中央カバー板12の両建造物81,82側に夫々配置される複数の側部カバー板13と、連結基体2,2の垂直縁22,22に夫々連結される端部カバー板14とを備える。すなわち、中央カバー板12と端部カバー板14との間に、複数の側部カバー板13が配設された構成となっている。 As shown in Figures 1 to 3, a joint cover body 11 is placed between the vertical edges 22, 22 of both structures 81, 82, and this joint cover body 11 forms part of a passage that crosses the joint 83. This joint cover body 11 includes a central cover plate 12 that is placed in the center of the joint width direction, a number of side cover plates 13 that are placed on both structures 81, 82 sides of the central cover plate 12, and end cover plates 14 that are connected to the vertical edges 22, 22 of the connecting bases 2, 2, respectively. In other words, a number of side cover plates 13 are arranged between the central cover plate 12 and the end cover plate 14.

中央カバー板12は、図4に示すように、目地長手方向(左右方向)に延在する矩形平板状の中央水平板部12aと、該中央水平板部12aの下面に固結された断面略コ字状の中央支持杆部12bとから構成されている。中央支持杆部12bは、前記中央水平板部12aの目地幅方向中央部に、該中央水平板部12aの目地長手方向に亘って設けられる。そして、中央支持杆部12bは、その底面部に複数の挿通孔(図示せず)が開口形成されている。この挿通孔には、後述する伸縮リンク体31を構成する中央のリンク要素部32の螺子杆38が回転自在に挿通される。 As shown in FIG. 4, the central cover plate 12 is composed of a central horizontal plate portion 12a in the shape of a rectangular flat plate extending in the longitudinal direction of the joint (left-right direction), and a central support rod portion 12b with a generally U-shaped cross section fixed to the underside of the central horizontal plate portion 12a. The central support rod portion 12b is provided in the center of the central horizontal plate portion 12a in the joint width direction, across the longitudinal direction of the central horizontal plate portion 12a. The central support rod portion 12b has a plurality of insertion holes (not shown) formed in its bottom surface. The screw rod 38 of the central link element portion 32 constituting the expandable link body 31 described later is rotatably inserted into the insertion holes.

側部カバー板13は、目地長手方向(左右方向)に延在する矩形平板状の側部水平板部13aと、該側部水平板部13aの下面に固結された断面略コ字状の側部支持杆部13bとから構成されている。側部水平板部13aは、前記中央カバー板12の中央水平板部12aと、目地長手方向の長さ寸法が同じ矩形平板状に形成されており、側部支持杆部13bは、該側部水平板部13aの内側縁寄りに、該側部水平板部13aの目地長手方向に亘って設けられる。そして、側部支持杆部13bは、その底面部に複数の挿通孔(図示せず)が開口形成されている。この挿通孔には、後述する伸縮リンク体31を構成するリンク要素部32の螺子杆38が回転自在に挿通される。 The side cover plate 13 is composed of a rectangular flat side horizontal plate portion 13a extending in the longitudinal direction of the joint (left and right direction), and a side support rod portion 13b with a generally U-shaped cross section fixed to the underside of the side horizontal plate portion 13a. The side horizontal plate portion 13a is formed in a rectangular flat plate shape with the same length dimension in the longitudinal direction of the joint as the central horizontal plate portion 12a of the central cover plate 12, and the side support rod portion 13b is provided near the inner edge of the side horizontal plate portion 13a across the longitudinal direction of the joint of the side horizontal plate portion 13a. The side support rod portion 13b has a plurality of insertion holes (not shown) formed in its bottom surface. The screw rod 38 of the link element portion 32 constituting the expandable link body 31 described later is inserted rotatably into this insertion hole.

端部カバー板14は、前記連結基体2の垂直縁22の上端部に取り付けられており(図1参照)、矩形平板状の端部水平板部14aと、該端部水平板部14aの内側縁から下方へ延出された断面略L形の脚縁部14bとを備えたものであり、該端部水平板部14aと脚縁部14bとが一枚の鋼板を折曲加工することにより成形される。端部水平板部14aは、前記中央水平板部12aおよび側部水平板部13aと同じ長さ寸法で形成されている。尚、本実施例にあって、端部カバー板14は、端部水平板部14aの下面に補強杆14cが接合されており、この補強杆14cにより高い強度と剛性とを有する。 The end cover plate 14 is attached to the upper end of the vertical edge 22 of the connecting base 2 (see FIG. 1) and has a rectangular flat end horizontal plate portion 14a and a leg edge portion 14b with a roughly L-shaped cross section that extends downward from the inner edge of the end horizontal plate portion 14a. The end horizontal plate portion 14a and the leg edge portion 14b are formed by bending a single steel plate. The end horizontal plate portion 14a is formed with the same length as the central horizontal plate portion 12a and the side horizontal plate portion 13a. In this embodiment, the end cover plate 14 has a reinforcing rod 14c joined to the underside of the end horizontal plate portion 14a, and this reinforcing rod 14c provides high strength and rigidity.

目地カバー体11は、一個の中央カバー板12と複数(本実施例にあっては、十個)の側部カバー板13と二個の端部カバー板14とから構成されており、隣合うカバー板12~14の目地幅方向の側縁部が摺動可能に重なり合っている。ここで、中央カバー板12の外側縁部は、該中央カバー板12と隣合う両側の側部カバー板13,13の内側縁部上に夫々重ねられ、各側部カバー板13の外側縁部は、外側で隣合う側部カバー板13の内側縁部上に夫々重ねられ、端部カバー板14の外側で隣合う側部カバー板13の外側縁部は、該端部カバー板14の内側縁部上に重ねられる。これにより、端部カバー板14の端部水平板部14a、各側部カバー板13の側部水平板部13a、および中央カバー板12の中央水平板部12aが階段状に重なっており、中央水平板部12aが最も高い位置にある(図1参照)。また、中央カバー板12の中央支持杆部12bと、側部カバー板13の側部支持杆部13bと、端部カバー板14の脚縁部14bとは、前記目地カバー体11を構成した状態で、夫々の底面部が同一の高さ位置となるように形成されている。すなわち、中央カバー板12の中央支持杆部12bが、最も高い寸法で形成され、端部カバー板14の脚縁部14bが、最も低い寸法で形成され、中央カバー板12と端部カバー板14との間に配される各側部カバー板13の側部支持杆部13bが、内側から外側に向かって段々と低い寸法で形成されている。
尚、こうした目地カバー体11は、中央カバー板12と各側部カバー板13とを、後述する伸縮リンク体31の各リンク要素部32に連結し、かつ端部カバー板14を、前記連結基体2の垂直縁22に連結することによって形成される。
The joint cover body 11 is composed of one central cover plate 12, a plurality of (ten in this embodiment) side cover plates 13, and two end cover plates 14, and the side edges of adjacent cover plates 12 to 14 in the joint width direction are slidably overlapped. Here, the outer edge of the central cover plate 12 is overlapped on the inner edge of the side cover plates 13, 13 on both sides adjacent to the central cover plate 12, the outer edge of each side cover plate 13 is overlapped on the inner edge of the adjacent side cover plate 13 on the outside, and the outer edge of the adjacent side cover plate 13 on the outside of the end cover plate 14 is overlapped on the inner edge of the end cover plate 14. As a result, the end horizontal plate portion 14a of the end cover plate 14, the side horizontal plate portion 13a of each side cover plate 13, and the central horizontal plate portion 12a of the central cover plate 12 are stacked in a stepped manner, with the central horizontal plate portion 12a being at the highest position (see FIG. 1). The central support rod portion 12b of the central cover plate 12, the side support rod portion 13b of the side cover plate 13, and the leg edge portion 14b of the end cover plate 14 are formed so that their bottom surfaces are at the same height position when the joint cover body 11 is constructed. That is, the central support rod portion 12b of the central cover plate 12 is formed with the highest dimension, the leg edge portion 14b of the end cover plate 14 is formed with the lowest dimension, and the side support rod portion 13b of each side cover plate 13 arranged between the central cover plate 12 and the end cover plate 14 is formed with dimensions that gradually decrease from the inside to the outside.
Furthermore, such a joint cover body 11 is formed by connecting the central cover plate 12 and each side cover plate 13 to each link element portion 32 of the expandable link body 31 described later, and by connecting the end cover plate 14 to the vertical edge 22 of the connecting base 2.

次に本発明の要部について説明する。
本実施例の床用目地カバー装置1は、図5,6に示すように、両建造物81,82に配設された連結基体2,2に、複数の伸縮保持体7が差し渡された構成を有する。両建造物81,82の連結基体2,2には、前述したように、対向状に設けられた一対の連結杆25,25が四組設けられており、各対の連結杆25,25に、伸縮保持体7が夫々連結されている。伸縮保持体7は、前記した目地カバー体11の中央カバー板12と側部カバー板13とが連結される伸縮リンク体31と、該伸縮リンク体31を支持する伸縮支持梁51とから構成される。
Next, the main part of the present invention will be described.
5 and 6, the floor joint cover device 1 of this embodiment has a configuration in which a plurality of expandable holders 7 are stretched across the connecting bases 2, 2 arranged on both buildings 81, 82. As described above, the connecting bases 2, 2 of both buildings 81, 82 are provided with four pairs of connecting rods 25, 25 arranged opposite each other, and each pair of connecting rods 25, 25 is connected to a respective expandable holder 7. The expandable holder 7 is composed of an expandable link body 31 that connects the center cover plate 12 and side cover plate 13 of the joint cover body 11 described above, and an expandable support beam 51 that supports the expandable link body 31.

伸縮リンク体31は、複数のリンク片33a,33bがパンタグラフ状に枢結されたものである。すなわち、図7に示すように、二個のリンク片33a,33bを螺子杆38により枢結したX状のリンク要素部32が、複数連結された構成を有する。ここで、リンク要素部32は、互いの中央部を交差させたリンク片33a,33bが、該中央部で前記螺子杆38により回動可能に枢結されてなり、伸縮リンク体31は、複数のリンク要素部32を列ねて、隣合うリンク要素部32,32の各リンク片33a,33bの端部同士が螺子杆(図示せず)により回動可能に夫々枢結されることによって構成されている。さらに、両端のリンク要素部32,32には、前記一対の連結杆25,25に連結される取付部36,36が、短尺リンク片34a,34bを介して夫々枢結されている。短尺リンク片34a,34bは、前記リンク要素部32を構成するリンク片33a,33bの略半分の長さをなし、夫々の一端が取付部36に枢結され、夫々の他端が、前記リンク要素部32のリンク片33a,33bの各端部に夫々枢結される。また、取付部36は、前記連結杆25の外径よりも大きい径寸法で形成された連結孔37が上下方向に貫通形成されている。伸縮リンク体31は、両端の取付部36,36の連結孔37,37が、両建造物81,82に配設された一対の連結杆25,25に外嵌されることによって、該連結杆25,25に枢結される。これにより、伸縮リンク体31は、左右方向へ回動可能であると共に、上下方向に傾動可能である。 The telescopic link body 31 is a structure in which a plurality of link pieces 33a, 33b are pivotally connected in a pantograph shape. That is, as shown in FIG. 7, the structure has a configuration in which a plurality of X-shaped link element parts 32, each of which has two link pieces 33a, 33b pivotally connected by a screw rod 38, are connected together. Here, the link element part 32 is formed by link pieces 33a, 33b crossing each other at their centers and pivotally connected at the centers by the screw rod 38, and the telescopic link body 31 is formed by lining up a plurality of link element parts 32, and pivoting the ends of each link piece 33a, 33b of adjacent link element parts 32, 32 to each other so that they can pivot by a screw rod (not shown). Furthermore, the link element parts 32, 32 at both ends are pivotally connected to the pair of connecting rods 25, 25 via short link pieces 34a, 34b, respectively. The short link pieces 34a, 34b are approximately half the length of the link pieces 33a, 33b that constitute the link element portion 32, and one end of each is pivotally connected to the mounting portion 36, and the other end of each is pivotally connected to each end of the link pieces 33a, 33b of the link element portion 32. The mounting portion 36 is also formed with a connection hole 37 that is formed with a diameter dimension larger than the outer diameter of the connecting rod 25 and penetrates in the vertical direction. The telescopic link body 31 is pivotally connected to the connecting rods 25, 25 by fitting the connection holes 37, 37 of the mounting portions 36, 36 at both ends to the outside of the pair of connecting rods 25, 25 arranged on both buildings 81, 82. As a result, the telescopic link body 31 can rotate in the left-right direction and tilt in the up-down direction.

こうして配設された伸縮リンク体31は、両建造物81,82が目地幅方向に相対変位した場合に、該相対変位に追従して伸縮できる(図14参照)。そして、両建造物81,82が目地長手方向に相対変位した場合には、該相対変位に追従して左右方向に回動できる(図15参照)。さらに、両建造物81,82が高さ方向に相対変位した場合には、該相対変位に追従して上下方向に傾動できる。 When the two structures 81, 82 are displaced relative to each other in the joint width direction, the expandable link body 31 thus arranged can expand and contract in response to the relative displacement (see FIG. 14). When the two structures 81, 82 are displaced relative to each other in the joint length direction, the expandable link body 31 can rotate left and right in response to the relative displacement (see FIG. 15). Furthermore, when the two structures 81, 82 are displaced relative to each other in the height direction, the expandable link body 31 can tilt up and down in response to the relative displacement.

さらに、伸縮リンク体31を構成する各リンク要素部32の、リンク片33a,33bを枢結する螺子杆38が、前記した目地カバー体11を構成する中央カバー板12の中央支持杆部12bと各側部カバー板13の側部支持杆部13bとに開口形成された挿通孔(図示せず)に夫々挿通されて、ナット等により抜け止めされることにより、該伸縮リンク体31に目地カバー体11の中央カバー板12と側部カバー板13とが夫々回動可能に連結される。ここで、伸縮リンク体31は、目地カバー体11の中央カバー板12と側部カバー板13との配設個数(11個)と同数のリンク要素部32によって構成されており、各リンク要素部32の螺子杆38が、中央カバー板12と側部カバー板13との各挿通孔に夫々挿通されて連結される。そして、中央カバー板12の中央支持杆部12bと側部カバー板13の側部支持杆部13bとが、伸縮リンク体31に回動可能に乗載される。 Furthermore, the screw rods 38 that pivotally connect the link pieces 33a, 33b of each link element portion 32 that constitutes the telescopic link body 31 are inserted into the insertion holes (not shown) that are opened in the central support rod portion 12b of the central cover plate 12 and the side support rod portion 13b of each side cover plate 13 that constitute the joint cover body 11 described above, and are prevented from coming off by nuts or the like, so that the central cover plate 12 and the side cover plate 13 of the joint cover body 11 are rotatably connected to the telescopic link body 31. Here, the telescopic link body 31 is composed of the same number of link element portions 32 as the number of central cover plates 12 and side cover plates 13 arranged in the joint cover body 11 (11 pieces), and the screw rods 38 of each link element portion 32 are inserted into the insertion holes of the central cover plate 12 and the side cover plate 13 to be connected. The central support rod portion 12b of the central cover plate 12 and the side support rod portion 13b of the side cover plate 13 are rotatably mounted on the expandable link body 31.

尚、本実施例の伸縮リンク体31には、各リンク要素部32の下面中央部に円環状の摺動突部(図示せず)が設けられており、該摺動突部の内側に、リンク片33a,33bを枢結する螺子杆38の下端部が収容される。伸縮リンク体31は、前記各リンク要素部32の摺動突部が伸縮支持梁51に乗載されることによって、該伸縮支持梁51に摺動可能に支持される。 In addition, in this embodiment, the telescopic link body 31 has an annular sliding protrusion (not shown) at the center of the underside of each link element portion 32, and the lower end of the screw rod 38 that pivots the link pieces 33a and 33b is housed inside the sliding protrusion. The telescopic link body 31 is slidably supported on the telescopic support beam 51 by the sliding protrusion of each link element portion 32 being placed on the telescopic support beam 51.

一方、伸縮支持梁51は、図8に示すように、両建造物81,82の連結杆25,25に夫々枢結される一対の側支持梁体53,53と、該側支持梁体53,53により支持される中支持梁体52とにより構成されている。 On the other hand, as shown in FIG. 8, the telescopic support beam 51 is composed of a pair of side support beams 53, 53 pivotally connected to the connecting rods 25, 25 of both structures 81, 82, respectively, and a central support beam 52 supported by the side support beams 53, 53.

中支持梁体52は、図8~10に示すように、目地幅方向に沿って延在された上下方向の側面部を左右両側に有する中梁杆部61を備え、該中梁杆部61の一端部には、左右一側の側面部に、四個の中回転ローラ64を有する中ローラユニット63が設けられていると共に、該中梁杆部61の他端部には、左右他側の側面部に、中ローラユニット63が設けられている。中ローラユニット63は、中梁杆部61の側面部に直交状に取り付けれる四個の回動軸65が上下方向と目地幅方向とに並列して設けられ、各回動軸65に前記中回転ローラ64が回動自在に夫々連結されたものである。中回転ローラ64には、その外周面に嵌合周溝64aが周成されている。 As shown in Figures 8 to 10, the middle support beam 52 has a middle beam rod portion 61 having vertical side portions on both the left and right sides that extend along the joint width direction, and a middle roller unit 63 having four middle rotating rollers 64 is provided on one of the left and right side portions at one end of the middle beam rod portion 61, and a middle roller unit 63 is provided on the other of the left and right side portions at the other end of the middle beam rod portion 61. The middle roller unit 63 has four rotating shafts 65 that are attached perpendicularly to the side portions of the middle beam rod portion 61 and are arranged in parallel in the vertical direction and the joint width direction, and the middle rotating rollers 64 are respectively connected to each rotating shaft 65 so that they can rotate freely. The middle rotating rollers 64 have a fitting circumferential groove 64a formed around their outer periphery.

さらに、中支持梁体52は、中梁杆部61の左右両側に、上下一対の案内部67,68を有する中案内レール66が夫々固結されている。案内部67,68は、中梁杆部61の上下端から左右一方へ夫々延出された水平縁67a,68aと、該水平縁67a,68aの延出端から下方または上方へ夫々延出された嵌合縁67b,68bとからなる断面略L形を成し、夫々の嵌合縁67b,68bが上下方向に所定間隙をおいて対設されている。こうした中案内レール66は、中梁杆部61の長手方向(目地幅方向)に亘って夫々設けられている。そして、本実施例の中案内レール66は、上側の案内部67が前記中ローラユニット63よりも上方に設けられ且つ下側の案内部68が該中ローラユニット63よりも下方に設けられており、上下の嵌合縁67b,68bの間隙に、該中ローラユニット63が位置する。 Furthermore, the center support beam 52 has center guide rails 66, each having a pair of upper and lower guide sections 67, 68, fixed to the left and right sides of the center beam rod section 61. The guide sections 67, 68 have horizontal edges 67a, 68a extending to the left or right from the upper and lower ends of the center beam rod section 61, respectively, and mating edges 67b, 68b extending downward or upward from the extending ends of the horizontal edges 67a, 68a, respectively, forming an approximately L-shaped cross section, and the mating edges 67b, 68b are arranged opposite each other with a predetermined gap in the vertical direction. These center guide rails 66 are each provided along the longitudinal direction (joint width direction) of the center beam rod section 61. In this embodiment, the middle guide rail 66 has an upper guide portion 67 disposed above the middle roller unit 63 and a lower guide portion 68 disposed below the middle roller unit 63, with the middle roller unit 63 positioned in the gap between the upper and lower mating edges 67b, 68b.

尚、中梁杆部61の上面部には、左右方向と長手方向との中央部位に、上方へ突成された枢支杆59が設けられている。この枢支杆59は、後述するように、目地カバー体11を構成する中央カバー板12に回動可能に枢支される。 The upper surface of the center beam section 61 is provided with a pivot rod 59 that protrudes upward at the center in the left-right and longitudinal directions. As described below, this pivot rod 59 is rotatably supported by the center cover plate 12 that constitutes the joint cover body 11.

側支持梁体53は、図11,12に示すように、目地幅方向に沿って延在された上下方向の側面部を左右一側に有する側梁杆部71を備え、該側梁杆部71の一端部には、前記連結杆25に枢結される梁取付部72が設けられると共に、該側梁杆部71の他端部には、前記側梁杆部71の側面部に、二個の側回転ローラ74を有する側ローラユニット73が設けられている。梁取付部72には、前記連結杆25の外径よりも大きい径寸法で形成された連結孔72aが上下方向に貫通形成されており、該連結孔72aが該連結杆25に外嵌される。これにより、梁取付部72は、連結杆25に対して、左右方向へ回動可能であると共に、上下方向に傾動可能である。 As shown in Figures 11 and 12, the side support beam body 53 has a side beam rod portion 71 having a vertical side portion extending along the joint width direction on one side, and a beam mounting portion 72 pivotally connected to the connecting rod 25 is provided at one end of the side beam rod portion 71, and a side roller unit 73 having two side rotating rollers 74 is provided at the other end of the side beam rod portion 71 on the side portion of the side beam rod portion 71. A connecting hole 72a formed with a diameter dimension larger than the outer diameter of the connecting rod 25 is formed through the beam mounting portion 72 in the vertical direction, and the connecting hole 72a is fitted onto the connecting rod 25. As a result, the beam mounting portion 72 can rotate left and right relative to the connecting rod 25 and can tilt up and down.

側ローラユニット73は、側梁杆部71の側面部に直交状に取り付けられる二個の回動軸75が上下方向に並列して設けられ、各回動軸75に前記側回転ローラ74が回動自在に夫々連結されたものである。そして、側回転ローラ74には、その外周面に嵌合周溝74aが周成されている。こうした側ローラユニット73は、上側の側回転ローラ74の嵌合周溝74aに、前記中案内レール66を構成する上側の案内部67の嵌合縁67bを相対移動可能に嵌合でき、且つ下側の側回転ローラ74の嵌合周溝74aに、当該案内部67と対の下側の案内部68の嵌合縁68bを相対移動可能に嵌合できる。 The side roller unit 73 has two rotating shafts 75 that are attached perpendicularly to the side of the side beam rod portion 71, arranged in parallel in the vertical direction, and the side rotating rollers 74 are rotatably connected to each rotating shaft 75. The side rotating rollers 74 have a fitting circumferential groove 74a formed around their outer periphery. In this type of side roller unit 73, the fitting edge 67b of the upper guide portion 67 that constitutes the middle guide rail 66 can be fitted into the fitting circumferential groove 74a of the upper side rotating roller 74 so as to be relatively movable, and the fitting edge 68b of the lower guide portion 68 that is paired with the guide portion 67 can be fitted into the fitting circumferential groove 74a of the lower side rotating roller 74 so as to be relatively movable.

さらに、側支持梁体53は、側梁杆部71の側面部に、上下一対の案内部77,78を有する側案内レール76が固結されている。案内部77,78は、側梁杆部71の側面部の上部および下部から左右一方へ夫々延出された水平縁77a,78aと、各水平縁77a,78aの延出端から下方または上方へ夫々延出された嵌合縁77b,78bとからなる断面略L形を成し、夫々の嵌合縁77b,78bが上下方向に所定間隙をおいて対設されている。こうした側案内レール76は、側梁杆部71の側面部に、前記側ローラユニット73が取り付けられた他端部を除いて、該側梁杆部71の長手方向(目地幅方向)に亘って夫々設けられている。そして、本実施例の側案内レール76は、前記中支持梁体52の中案内レール66を構成する上下の案内部67,68(上下の嵌合縁67b,68b)間を挿通可能に設けられており、前記中支持梁体52の中ローラユニット63を構成する上側の二個の回転ローラ64,64の嵌合周溝64a,64aに、上側の案内部77の嵌合縁77bを相対移動可能に嵌合でき、且つ前記中ローラユニット63の下側の二個の回転ローラ64,64の嵌合周溝64a,64aに、下側の案内部78の嵌合縁78bを相対移動可能に嵌合できる。 Furthermore, the side support beam 53 has a side guide rail 76 having a pair of upper and lower guide portions 77, 78 fixed to the side portion of the side beam rod portion 71. The guide portions 77, 78 have a cross section of a generally L-shape consisting of horizontal edges 77a, 78a extending to the left or right from the upper and lower portions of the side portion of the side beam rod portion 71, respectively, and mating edges 77b, 78b extending downward or upward from the extending ends of the horizontal edges 77a, 78a, respectively, and the mating edges 77b, 78b are arranged opposite each other with a predetermined gap in the vertical direction. Such side guide rails 76 are provided on the side portions of the side beam rod portion 71 in the longitudinal direction (joint width direction) of the side beam rod portion 71, except for the other end where the side roller unit 73 is attached. In this embodiment, the side guide rail 76 is provided so that it can be inserted between the upper and lower guide sections 67, 68 (upper and lower mating edges 67b, 68b) that make up the middle guide rail 66 of the middle support beam 52, and the mating edge 77b of the upper guide section 77 can be relatively movably fitted into the mating circumferential grooves 64a, 64a of the upper two rotating rollers 64, 64 that make up the middle roller unit 63 of the middle support beam 52, and the mating edge 78b of the lower guide section 78 can be relatively movably fitted into the mating circumferential grooves 64a, 64a of the lower two rotating rollers 64, 64 of the middle roller unit 63.

また、本実施例にあって、側支持梁体53には、側梁杆部71の上下端から側面部側に夫々突設された外嵌片部79,79を備える。上下の外嵌片部79,79は、その間に、前記中支持梁体52の中案内レール66を嵌入可能に形成されており、側梁杆部71の長手方向(目地幅方向)に亘って設けられている。ここで、上下の外嵌片部79,79は、その間に、中案内レール66を構成する上下の案内部77,78の水平縁67a,68aが嵌入されて、該中案内レール66を上下方向で支持する(図11参照)。 In this embodiment, the side support beam 53 is provided with outer fitting pieces 79, 79 that protrude from the upper and lower ends of the side beam rod portion 71 toward the side portion. The upper and lower outer fitting pieces 79, 79 are formed so that the middle guide rail 66 of the middle support beam 52 can be fitted between them, and are provided along the longitudinal direction (joint width direction) of the side beam rod portion 71. Here, the horizontal edges 67a, 68a of the upper and lower guide portions 77, 78 that constitute the middle guide rail 66 are fitted between the upper and lower outer fitting pieces 79, 79, supporting the middle guide rail 66 in the vertical direction (see FIG. 11).

伸縮支持梁51は、図8に示すように、前述した中支持梁体52と二個の側支持梁体53,53とが連結されて構成される。すなわち、中支持梁体52の左右両側で、該中支持梁体52を構成する中梁杆部61の側面部と側支持梁体53,53を構成する側梁杆部71,71の側面部とを夫々対向させて、該中支持梁体52の中案内レール66と該側支持梁体53の側回転ローラ74とを嵌合させると共に、該中支持梁体52の中回転ローラ64と該側支持梁体53の側案内レール76とを嵌合させる。こうして中支持梁体52と二個の側支持梁体53,53とを連結してなる伸縮支持梁51が構成され、該伸縮支持梁51は、各側支持梁体53,53が両建造物81,82の連結基体2,2に枢結され且つ該連結基体2,2の水平受縁21,21に乗載されて支持される(図1,5,6参照)。かかる伸縮支持梁51は、中案内レール66の上下の案内部67,68間に側ローラユニット73の上下の側回転ローラ74,74が相対移動可能に嵌合され、且つ側案内レール76の上下の案内部77,78間に中ローラユニット63の上下の中回転ローラ64,64が相対移動可能に嵌合された構成であることから、中支持梁体52と側支持梁体53,53とが各案内レール66,76に沿って相対的に移動することによって、円滑に伸縮できる。 8, the expandable support beam 51 is formed by connecting the above-mentioned center support beam body 52 and two side support beam bodies 53, 53. That is, on both the left and right sides of the center support beam body 52, the side portions of the center beam rod portion 61 constituting the center support beam body 52 and the side portions of the side beam rod portions 71, 71 constituting the side support beam bodies 53, 53 are respectively opposed to each other, and the center guide rail 66 of the center support beam body 52 is fitted with the side rotating roller 74 of the side support beam body 53, and the center rotating roller 64 of the center support beam body 52 is fitted with the side guide rail 76 of the side support beam body 53. In this way, the telescopic support beam 51 is formed by connecting the middle support beam 52 and the two side support beams 53, 53, and the telescopic support beam 51 is supported by having each side support beam 53, 53 pivotally connected to the connecting bases 2, 2 of both buildings 81, 82 and resting on the horizontal supports 21, 21 of the connecting bases 2, 2 (see Figures 1, 5, and 6). In this telescopic support beam 51, the upper and lower side rotating rollers 74, 74 of the side roller unit 73 are fitted between the upper and lower guide parts 67, 68 of the middle guide rail 66 so as to be relatively movable, and the upper and lower middle rotating rollers 64, 64 of the middle roller unit 63 are fitted between the upper and lower guide parts 77, 78 of the side guide rail 76 so as to be relatively movable, so that the middle support beam 52 and the side support beams 53, 53 can move relatively along the respective guide rails 66, 76, allowing smooth telescopic movement.

こうした伸縮支持梁51は、その両端の梁取付部72,72に設けられた連結孔72a,72aが、両建造物81,82の連結基体2,2に設けられた一対の連結杆25,25に夫々外嵌されることにより、該連結基体2,2に枢結される。そして、伸縮支持梁51は、その側支持梁体53,53が前記連結基体2,2の水平受縁21,21上に摺動可能に乗載される。これにより、伸縮支持梁51は、左右方向に回転可能かつ上下方向に傾動可能に連結基体2,2に枢結されると共に、該連結基体2,2に安定して支持される。 The telescopic support beam 51 is pivotally connected to the connecting bases 2, 2 of both buildings 81, 82 by fitting the connecting holes 72a, 72a provided in the beam mounting parts 72, 72 at both ends onto a pair of connecting rods 25, 25 provided on the connecting bases 2, 2 of both buildings 81, 82. The telescopic support beam 51 is then slidably mounted on the horizontal receiving edges 21, 21 of the connecting bases 2, 2 with its side support beams 53, 53. As a result, the telescopic support beam 51 is pivotally connected to the connecting bases 2, 2 so as to be rotatable left and right and tiltable up and down, and is stably supported by the connecting bases 2, 2.

伸縮保持体7は、図1,5,6に示すように、両建造物81,82に夫々設けられた連結基体2,2の一対の連結杆25,25に枢結された前記伸縮支持梁51と、当該伸縮支持梁51の上から当該連結杆25,25に枢結された前記伸縮リンク体31とによって構成される。伸縮支持梁51は、前述したように、両端の梁取付部72,72が一対の連結杆25,25に枢結され、かつ側支持梁体53,53が連結基体2,2の水平受縁21,21に摺動可能に乗載されて支持される。そして、伸縮リンク体31は、前記伸縮支持梁51の上から、同じ一対の連結杆25,25に、取付部36,36が枢結されて、該伸縮支持梁51上に配設される。ここで、伸縮リンク体31は、前述したように、各リンク要素部32の下面中央部に設けられた摺動突部(図示せず)が、前記伸縮支持梁51に乗載されて、該伸縮支持梁51に摺動可能に支持される。また、伸縮リンク体31を構成する中央のリンク要素部32の螺子杆38は、当該螺子杆38を収容する前記摺動突部を介して、伸縮支持梁51の中支持杆梁体52から上方へ突成された枢支杆59に、回動自在に連結される。 As shown in Figures 1, 5 and 6, the telescopic support body 7 is composed of the telescopic support beam 51 pivotally connected to a pair of connecting rods 25, 25 of the connecting bases 2, 2 provided on both buildings 81, 82, and the telescopic link body 31 pivotally connected to the connecting rods 25, 25 from above the telescopic support beam 51. As described above, the telescopic support beam 51 has beam attachment parts 72, 72 at both ends pivotally connected to a pair of connecting rods 25, 25, and the side support beam bodies 53, 53 are supported by being slidably placed on the horizontal receiving edges 21, 21 of the connecting bases 2, 2. The telescopic link body 31 is arranged on the telescopic support beam 51 with attachment parts 36, 36 pivotally connected to the same pair of connecting rods 25, 25 from above the telescopic support beam 51. Here, as described above, the telescopic link body 31 is supported slidably on the telescopic support beam 51 by the sliding protrusion (not shown) provided at the center of the underside of each link element portion 32, which is placed on the telescopic support beam 51. In addition, the threaded rod 38 of the central link element portion 32 constituting the telescopic link body 31 is rotatably connected to the pivot rod 59 protruding upward from the central support rod body 52 of the telescopic support beam 51 via the sliding protrusion that houses the threaded rod 38.

このように本実施例の伸縮保持体7は、伸縮支持梁51の直上に伸縮リンク体31が配設されて、該伸縮支持梁51によって該伸縮リンク体31が直接的に支持される。そして、伸縮支持梁51と伸縮リンク体31とが、左右方向に回転可能かつ上下方向に傾動可能であると共に、夫々伸縮作動できる。 In this way, in the telescopic holder 7 of this embodiment, the telescopic link body 31 is disposed directly above the telescopic support beam 51, and the telescopic link body 31 is directly supported by the telescopic support beam 51. The telescopic support beam 51 and the telescopic link body 31 can rotate left and right and tilt up and down, and can each perform telescopic movements.

次に、本実施例の床用目地カバー装置1の作動態様について説明する。
図14に示すように、地震の際に両建造物81,82が近接する方向に相対変位すると、各伸縮保持体7を構成する伸縮支持梁51と伸縮リンク体31とが収縮し、該伸縮リンク体31の各リンク要素部32に枢結された各側部カバー板13が中央カバー板12に向かって移動して、目地カバー体11が収縮する。ここで、伸縮支持梁51と伸縮リンク体31とが円滑に伸縮できることから、地震による両建造物81,82の近接方向への相対変位にスムーズに追従できる。このように伸縮保持体7の収縮に連動して中央カバー板12と各側部カバー板13とが摺動することにより、両建造物81,82の近接方向への相対変位に追従して、目地カバー体11がスムーズに収縮できる。
Next, the operation of the floor joint covering device 1 of this embodiment will be described.
As shown in Figure 14, when the two structures 81, 82 are displaced relative to each other in the direction toward each other during an earthquake, the telescopic support beams 51 and telescopic link bodies 31 constituting each telescopic holder 7 contract, and each side cover plate 13 pivotally connected to each link element portion 32 of the telescopic link body 31 moves toward the center cover plate 12, causing the joint cover body 11 to contract. Here, the telescopic support beams 51 and the telescopic link body 31 can smoothly expand and contract, so that the telescopic support beams 51 and the telescopic link body 31 can smoothly follow the relative displacement of the two structures 81, 82 in the direction toward each other caused by an earthquake. In this way, the center cover plate 12 and each side cover plate 13 slide in conjunction with the contraction of the telescopic holder 7, so that the joint cover body 11 can smoothly contract in response to the relative displacement of the two structures 81, 82 in the direction toward each other.

また、地震の際に両建造物81,82が離間する方向に相対変位した場合(図示せず)には、各伸縮保持体7を構成する伸縮支持梁51と伸縮リンク体31とが伸張し、該伸縮リンク体31の伸張に伴って各側部カバー板13が目地外方へ移動して、目地カバー体11が伸張する。このように離間方向へ相対変位した際にも、伸縮支持梁51と伸縮リンク体31とが円滑に伸張して、当該相対変位にスムーズに追従できる。そして、中央カバー板12と各側部カバー板13とが摺動することにより、前記離間方向への相対変位に追従して、目地カバー体11がスムーズに伸張できる。 In addition, if the two structures 81, 82 are displaced apart relative to each other during an earthquake (not shown), the telescopic support beams 51 and telescopic link bodies 31 that make up each telescopic holder 7 will expand, and as the telescopic link bodies 31 expand, each side cover plate 13 will move outward from the joint, causing the joint cover body 11 to expand. Even when there is a relative displacement in the separating direction in this way, the telescopic support beams 51 and telescopic link bodies 31 will expand smoothly, allowing them to smoothly follow the relative displacement. Then, the center cover plate 12 and each side cover plate 13 will slide, allowing the joint cover body 11 to expand smoothly in response to the relative displacement in the separating direction.

一方、図15に示すように、地震の際に両建造物81,82が左右方向(目地長手方向)に相対変位した場合には、各伸縮保持体7を構成する伸縮支持梁51と伸縮リンク体31とが左右方向へ傾動し且つ該傾動に伴って伸張する。ここで、伸縮支持梁51と伸縮リンク体31とは、夫々円滑に伸縮でき、且つ両建造物81,82に固定された連結基体2,2(一対の連結杆25,25)に回動可能に夫々枢結されていることから、地震による両建造物81,82の左右方向への相対変位にスムーズに追従できる。そして、伸縮保持体7の傾動に伴って、中央カバー板12と各側部カバー板13とが左右方向へ移動して、目地カバー体11が傾動する。このように中央カバー板12と各側部カバー板13とが伸縮リンク体31に連動して摺動することによって、両建造物81,82の左右方向への相対変位に追従して、目地カバー体11がスムーズに傾動できる。 On the other hand, as shown in FIG. 15, when the two structures 81, 82 are displaced relative to each other in the left-right direction (longitudinal direction of the joint) during an earthquake, the telescopic support beams 51 and telescopic link bodies 31 constituting each telescopic support body 7 tilt left-right and expand with the tilt. Here, the telescopic support beams 51 and telescopic link bodies 31 can smoothly expand and contract, and are pivotally connected to the connecting bases 2, 2 (a pair of connecting rods 25, 25) fixed to the two structures 81, 82, respectively, so that they can smoothly follow the relative displacement of the two structures 81, 82 in the left-right direction caused by an earthquake. Then, as the telescopic support body 7 tilts, the center cover plate 12 and each side cover plate 13 move left-right, and the joint cover body 11 tilts. In this way, the center cover plate 12 and each side cover plate 13 slide in conjunction with the expandable link body 31, allowing the joint cover body 11 to tilt smoothly in response to the relative left-right displacement of the two structures 81, 82.

さらに、地震の際に両建造物81,82が上下方向に相対変位した場合(図示せず)には、各伸縮保持体7を構成する伸縮支持梁51と伸縮リンク体31とが上下方向に傾動し且つ伸張する。そして、伸縮保持体7の伸張に伴って、目地カバー体11が伸張する。ここで、伸縮支持梁51と伸縮リンク体31とは、夫々の両端が、両建造物81,82に固定された連結基体2,2(一対の連結杆25,25)に上下方向へ傾動可能に枢結されていることから、両建造物81,82の上下方向への相対変位にスムーズに追従できる。 Furthermore, if the two structures 81, 82 are displaced vertically relative to each other during an earthquake (not shown), the telescopic support beams 51 and telescopic link bodies 31 that make up each telescopic holder 7 tilt and extend vertically. As the telescopic holder 7 extends, the joint cover body 11 extends. Here, the telescopic support beams 51 and telescopic link bodies 31 are pivotally connected at both ends to the connecting bases 2, 2 (a pair of connecting rods 25, 25) fixed to the two structures 81, 82 so that they can tilt vertically, allowing them to smoothly follow the vertical relative displacement of the two structures 81, 82.

前述したように、本実施例の床用目地カバー装置1にあっては、地震の際に両建造物81,82が相対変位すると、該相対変位に追従して伸縮保持体7が伸縮および傾動し、これに伴って中央カバー板12と側部カバー板13とが摺動することよって、目地カバー体11がスムーズに伸縮および傾動できる。特に、本実施例の構成は、目地カバー体11が、伸縮リンク体31の各リンク要素部32に回動自在に連結された中央カバー板12と複数の側部カバー板13とから構成されていることから、前記相対変位に追従して一層スムーズに伸縮および傾動できる。 As described above, in the floor joint cover device 1 of this embodiment, when the two structures 81, 82 are displaced relative to each other during an earthquake, the expandable holder 7 expands and contracts and tilts in response to the relative displacement, and the center cover plate 12 and the side cover plate 13 slide in response to this, allowing the joint cover body 11 to expand and contract and tilt smoothly. In particular, in the configuration of this embodiment, the joint cover body 11 is composed of the center cover plate 12 and multiple side cover plates 13 that are rotatably connected to each link element portion 32 of the expandable link body 31, so that it can expand and contract and tilt even more smoothly in response to the relative displacement.

本実施例の伸縮保持体7は、前記中央カバー板12と側部カバー板13とを枢支する伸縮リンク体31を、伸縮支持梁51によって下方から支持する構成であるから、目地カバー体11の重量と該目地カバー体11上を通過する人や物の重量とを、該伸縮リンク体31を介して伸縮支持梁51が支持する。これにより、伸縮リンク体31に作用する前記重量の負担を軽減でき、該伸縮リンク体31が安定して伸縮作動できる。そのため、伸縮リンク体31が前記した両建造物81,82の相対変位に安定して追従でき、これに伴って、該伸縮リンク体31に連結された目地カバー体11をスムーズに伸縮および傾動できる。
このように伸縮保持体7は、前記相対変位に従って目地カバー体11を伸縮および傾動させる機能(伸縮リンク体31の機能)と、該目地カバー体11を支持する機能(伸縮支持梁51の機能)とを合わせ持つものであることから、相互に干渉しない十分な間隔をおいて目地長手方向に複数並設でき、これら機能を安定かつ十分に発揮できる。これにより、例えば、目地長手方向の幅が比較的狭い通路に適用される場合に、伸縮保持体7の配設数が制限されるとしても、この配設数の伸縮保持体7によって、目地カバー体11の重量と該目地カバー体11上を通過する人や物の重量とを安定して支持でき、かつ該目地カバー体11を、前記両建造物81,82の相対変位に追従させて円滑に伸縮および傾動させることができる。このように本実施例の床用目地カバー装置1は、比較的幅の狭い通路に適用される場合にあっても、両建造物81,82の相対変位に追従でき且つ目地カバー体11を支持できるという、前述した作用効果が安定して発揮できるものである。
In the telescopic holder 7 of this embodiment, the telescopic link body 31, which pivotally supports the center cover plate 12 and the side cover plate 13, is supported from below by the telescopic support beam 51, so that the weight of the joint cover body 11 and the weight of people and objects passing over the joint cover body 11 are supported by the telescopic support beam 51 via the telescopic link body 31. This reduces the burden of the weight acting on the telescopic link body 31, and the telescopic link body 31 can stably telescope. Therefore, the telescopic link body 31 can stably follow the relative displacement of the two buildings 81, 82, and accordingly the joint cover body 11 connected to the telescopic link body 31 can be smoothly telescopically moved and tilted.
In this way, the expandable support 7 has both the function of expanding and contracting and tilting the joint cover body 11 according to the relative displacement (the function of the expandable link body 31) and the function of supporting the joint cover body 11 (the function of the expandable support beam 51), so that a plurality of expandable support bodies 7 can be arranged in parallel in the longitudinal direction of the joint at a sufficient interval so as not to interfere with each other, and these functions can be stably and sufficiently performed. As a result, even if the number of expandable support bodies 7 is limited when applied to a passage with a relatively narrow width in the longitudinal direction of the joint, the weight of the joint cover body 11 and the weight of people and objects passing over the joint cover body 11 can be stably supported by this number of expandable support bodies 7, and the joint cover body 11 can be smoothly expanded, contracted and tilted by following the relative displacement of the two structures 81 and 82. In this way, the floor joint cover device 1 of this embodiment can stably perform the above-mentioned action and effect of being able to follow the relative displacement of the two structures 81 and 82 and support the joint cover body 11 even when applied to a relatively narrow passage.

また、本実施例の構成は、前記中央カバー板12と側部カバー板13とを支持する伸縮支持梁51が円滑に伸縮作動することによって、目地カバー体11のスムーズな伸縮および傾動に寄与している。ここで、伸縮支持梁51は、中支持梁体52の中回転ローラ64と側支持梁体53の側案内レール76とが相対移動可能に嵌合され、かつ中支持梁体52の中案内レール66と側支持梁体53の側回転ローラ74とが相対移動可能に嵌合されて構成されたものであることから、中支持梁体52と側支持梁体53,53とが各案内レール66,76に沿って相対移動することによって、円滑に伸縮作動できる。さらに、本実施例にあっては、中支持梁体52に配設された上下の中回転ローラ64,64が、側支持梁体53に配設された側案内レール76の上下の案内部77,78間に相対移動可能に嵌合され、かつ側支持梁体53に配設された上下の側回転ローラ74,74が、中支持梁体52に配設された中案内レール66の上下の案内部67,68間に相対移動可能に嵌合された構成であるから、地震の際に、これら嵌合状態が安定して保持され、前記伸縮作動が安定かつスムーズに実行できる。こうしたことから、本実施例の伸縮支持梁51は、前記した両建造物81,82の相対変位に伴って円滑に伸縮することで、該相対変位に安定して追従できる。
さらに、本実施例の構成は、伸縮支持梁51の側支持梁体53,53が、両建造物81,82に固定された水平受縁21,21に支持され、該側支持梁体53,53によって中支持梁体52を支持するようにしたものであるから、目地83上に配置される該中支持梁体52を安定して支持できる。こうした伸縮支持梁51により、伸縮リンク体31を介して目地カバー体11をしっかりと支持できることから、該目地カバー体11上を通過する人や物の荷重を安定して支持し得る高い強度と剛性とを発揮できる。
In addition, the configuration of this embodiment contributes to smooth expansion and contraction and tilting of the joint cover body 11 by the smooth expansion and contraction of the expandable support beam 51 supporting the center cover plate 12 and the side cover plate 13. Here, the expandable support beam 51 is configured such that the middle rotating roller 64 of the middle support beam body 52 and the side guide rail 76 of the side support beam body 53 are fitted together so as to be relatively movable, and the middle guide rail 66 of the middle support beam body 52 and the side rotating roller 74 of the side support beam body 53 are fitted together so as to be relatively movable, so that the middle support beam body 52 and the side support beams 53, 53 move relatively along the guide rails 66, 76, thereby enabling smooth expansion and contraction. Furthermore, in this embodiment, the upper and lower middle rotating rollers 64, 64 arranged on the middle support beam 52 are fitted between the upper and lower guide parts 77, 78 of the side guide rail 76 arranged on the side support beam 53 so as to be relatively movable, and the upper and lower side rotating rollers 74, 74 arranged on the side support beam 53 are fitted between the upper and lower guide parts 67, 68 of the middle guide rail 66 arranged on the middle support beam 52 so as to be relatively movable, so that in the event of an earthquake, these fitted states are stably maintained, and the telescopic operation can be stably and smoothly performed. For this reason, the telescopic support beam 51 of this embodiment can stably follow the relative displacement of the two buildings 81, 82 by smoothly telescopically expanding and contracting in accordance with the relative displacement of the two buildings 81, 82.
Furthermore, in the configuration of this embodiment, the side support beams 53, 53 of the telescopic support beam 51 are supported by the horizontal supports 21, 21 fixed to both buildings 81, 82, and the side support beams 53, 53 support the middle support beam 52, so that the middle support beam 52 arranged on the joint 83 can be stably supported. Since the telescopic support beam 51 can firmly support the joint cover body 11 via the telescopic link body 31, it can exhibit high strength and rigidity that can stably support the load of people and objects passing over the joint cover body 11.

本発明は、前述した実施例に限定されず、本発明の趣旨を逸脱しない範囲内で適宜変更することが可能である。
例えば、伸縮保持体7の配設数は適宜変更して設定することができる。すなわち、床用目地カバー装置1の設置場所、通路の幅、目地カバー体11の重量などに応じて適宜設定変更することが好適である。
The present invention is not limited to the above-described embodiment, and can be modified as appropriate within the scope of the present invention.
For example, the number of the expandable holders 7 can be appropriately changed and set. In other words, it is preferable to appropriately change the setting depending on the installation location of the floor joint cover device 1, the width of the passage, the weight of the joint cover body 11, etc.

また、前述の実施例は、伸縮支持梁51の中支持梁体52に、四個の中回転ローラ64を有する中ローラユニット63が配設された構成であるが、これに限らず、中ローラユニットに有する中回転ローラの個数は適宜変更することができる。例えば、上下に並ぶ二個の中回転ローラ64,64を備えた中ローラユニットを備えた構成であっても良い。さらには、中支持梁体52の両側面部に、夫々一個の中回転ローラを備えた構成であっても良い。
同様に、側支持梁体53に、二個の側回転ローラ74を有する側ローラユニット73が配設された構成であるが、これに限らず、側回転ローラの配設個数は適宜変更することができる。例えば、四個の側回転ローラを有する側ローラユニットが配設された構成、一個の側回転ローラが配設された構成などとできる。
In the above embodiment, the middle roller unit 63 having four middle rollers 64 is disposed on the middle support beam 52 of the expandable support beam 51, but the number of middle rollers in the middle roller unit can be changed as appropriate. For example, the middle roller unit may have two middle rollers 64, 64 arranged vertically. Furthermore, the middle support beam 52 may have one middle roller on each of its two side surfaces.
Similarly, in the configuration, the side roller unit 73 having two side rollers 74 is disposed on the side support beam 53, but the number of side rollers can be changed as appropriate. For example, a configuration in which a side roller unit having four side rollers is disposed, or a configuration in which one side roller is disposed, etc., are possible.

また、前述の実施例は、連結基体2が水平受縁21を備え、該水平受縁21に伸縮支持梁51の両端部を摺動可能に乗載したものであるが、これに限らず、例えば、連結基体が、伸縮支持梁51の両端を枢結するのみで、該伸縮支持梁51の両端部を支持しない(水平受縁を有しない)構成であっても良い。 In the above-mentioned embodiment, the connecting base 2 has a horizontal support edge 21 on which both ends of the telescopic support beam 51 are slidably mounted, but this is not limited thereto. For example, the connecting base may only pivotally connect both ends of the telescopic support beam 51, but may not support both ends of the telescopic support beam 51 (do not have a horizontal support edge).

1 床用目地カバー装置
2 連結基体
7 伸縮保持体
11 目地カバー体
12 中央カバー板
12a 中央水平板部
12b 中央支持杆部
13 側部カバー板
13a 側部水平板部
13b 側部支持杆部
14 端部カバー板
14a 端部水平板部
14b 脚縁部
14c 補強杆
21 水平受縁
22 垂直縁
23 内側縁
25 連結杆
31 伸縮リンク体
32 リンク要素部
33a,33b リンク片
34a,34b 短尺リンク片
36 取付部
37 連結孔
38 螺子杆
51 伸縮支持梁
52 中支持梁体
53 側支持梁体
59 枢支杆
61 中梁杆部
63 中ローラユニット
64 中回転ローラ
64a 嵌合周溝
65 回動軸
66 中案内レール
67,68 案内部
67a,68a 水平縁
67b,68b 嵌合縁
71 側梁杆部
72 梁取付部
72a 連結孔
73 側ローラユニット
74 側回転ローラ
74a 嵌合周溝
75 回動軸
76 側案内レール
77,78 案内部
77a,78a 水平縁
77b、78b 嵌合縁
79 外嵌片部
81,82 建造物
83 目地
85,86 床
91,92 支持段縁
LIST OF SYMBOLS 1 Floor joint cover device 2 Connecting base 7 Expandable support body 11 Joint cover body 12 Central cover plate 12a Central horizontal plate portion 12b Central support rod portion 13 Side cover plate 13a Side horizontal plate portion 13b Side support rod portion 14 End cover plate 14a End horizontal plate portion 14b Leg edge portion 14c Reinforcement rod 21 Horizontal support edge 22 Vertical edge 23 Inner edge 25 Connecting rod 31 Expandable link body 32 Link element portion 33a, 33b Link piece 34a, 34b Short link piece 36 Mounting portion 37 Connecting hole 38 Screw rod 51 Expandable support beam 52 Center support beam body 53 Side support beam body 59 Pivot rod 61 Center beam rod portion 63 Center roller unit 64 Center rotating roller 64a Engagement circumferential groove 65 Pivot shaft 66 Center guide rail 67, 68 Guide portion 67a, 68a Horizontal edge 67b, 68b Engagement edge 71 Side beam rod portion 72 Beam attachment portion 72a Connection hole 73 Side roller unit 74 Side rotating roller 74a Engagement circumferential groove 75 Pivot shaft 76 Side guide rail 77, 78 Guide portion 77a, 78a Horizontal edge 77b, 78b Engagement edge 79 Outer fitting piece portion 81, 82 Building structure 83 Joint 85, 86 Floor 91, 92 Support step edge

Claims (1)

隣接する建造物の床相互間の目地に差し渡され、該目地の幅方向に並列された複数のカバー板を備えた目地カバー体と、
目地幅方向へ伸縮可能に形成され、両端部が両建造物の側縁に夫々枢支されると共に、前記目地カバー体の各カバー板が回動可能に連結された複数の伸縮保持体と
を備えてなる床用目地カバー装置において、
前記伸縮保持体は、
複数のリンク片がパンタグラフ状に枢結されて、目地幅方向へ伸縮可能に形成され、両端部が両建造物の側縁に夫々枢結されると共に、前記目地カバー体の各カバー板が枢支された伸縮リンク体と、
目地幅方向へ伸縮可能に形成され、前記伸縮リンク体の下方に設けられて、両端部が両建造物の側縁に夫々枢結された伸縮支持梁と
を備え、前記伸縮リンク体が下方の伸縮支持梁によって摺動可能に支持されたものであって、
前記伸縮支持梁は、
目地幅方向に沿って配設された中支持梁体と、
一端部が両建造物の側縁に夫々枢結されると共に、他端部が前記中支持梁体の左右両側に目地幅方向へ相対的に摺動可能に夫々連結され、該中支持梁体を支持する左右一対の側支持梁体と
を備えたものであり、
前記中支持梁体は、
目地幅方向に沿う中央杆部と、
前記中央杆部から左右両側へ夫々突設された回動軸に、回動自在に連結された左右の中回転ローラと、
上下方向に間隙をおいて目地幅方向に沿って延成された上下一対の案内部により構成され、前記中央杆部の左右両側に夫々配設された中案内レールと
を備え、
前記側支持梁体は、
一端部が前記建造物の側縁に枢結された、目地幅方向に沿う側梁杆部と、
前記側梁杆部から左右一側へ突設された回動軸に回動自在に連結され、前記中案内レールを構成する上下の案内部間に、目地幅方向へ相対的に移動可能に嵌合される側回転ローラと、
前記側梁杆部の、前記側回転ローラと同じ左右一側に配設され、上下方向に間隙をおいて目地幅方向に沿って延成された上下一対の案内部により構成されて、当該案内部間に前記中回転ローラが目地幅方向へ相対的に移動可能に嵌合される側案内レールと
を備えたものであることを特徴とする床用目地カバー装置。
A joint cover body having a plurality of cover plates arranged in parallel in the width direction of the joint, the cover plate being inserted across the joint between the floors of adjacent buildings;
A floor joint cover device comprising a plurality of expandable support bodies that are expandable in the joint width direction, have both ends pivotally supported on the side edges of both buildings, and have each cover plate of the joint cover body pivotally connected thereto,
The elastic support body is
A telescopic link body in which a plurality of link pieces are pivotally connected in a pantograph shape and are formed so as to be expandable and contractible in the joint width direction, both ends of which are pivotally connected to the side edges of both buildings, and to which each cover plate of the joint cover body is pivotally supported;
The structure is provided with a telescopic support beam that is formed to be telescopic in the joint width direction, is provided below the telescopic link body, and has both ends pivotally connected to the side edges of both buildings, and the telescopic link body is slidably supported by the telescopic support beam below ,
The telescopic support beam is
A center support beam disposed along the joint width direction;
A pair of left and right side support beams, one end of which is pivotally connected to the side edges of both buildings and the other end of which is connected to both the left and right sides of the central support beam so as to be relatively slidable in the joint width direction, support the central support beam;
It is equipped with
The central support beam is
A central rod portion along the joint width direction;
Left and right middle rollers rotatably connected to rotary shafts respectively protruding from the central rod portion on both the left and right sides;
A pair of upper and lower guide parts extending along the joint width direction with a gap in the vertical direction, and a middle guide rail disposed on each of the left and right sides of the central rod part,
Equipped with
The side support beam is
A side beam rod portion along the joint width direction, one end of which is pivotally connected to the side edge of the building;
A side rotating roller is rotatably connected to a rotating shaft protruding from the side beam rod portion to one of the left and right sides, and is fitted between the upper and lower guide portions constituting the middle guide rail so as to be relatively movable in the joint width direction;
a side guide rail that is disposed on the same left or right side of the side beam rod as the side rotating roller, and is configured with a pair of upper and lower guide parts that extend along the joint width direction with a gap in the vertical direction, and the middle rotating roller is fitted between the guide parts so as to be relatively movable in the joint width direction;
A floor joint cover device comprising :
JP2021043666A 2021-03-17 2021-03-17 Floor joint cover device Active JP7626436B2 (en)

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JP2005264582A (en) 2004-03-19 2005-09-29 Dooei Gaiso Kk Joint device
JP2015098759A (en) 2013-10-15 2015-05-28 ドーエイ外装有限会社 Floor joint device

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CA2423578C (en) * 2002-04-02 2010-02-16 Mbt Holding Ag Expansion joint system for accommodation of large movement in multiple directions

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JP2005264582A (en) 2004-03-19 2005-09-29 Dooei Gaiso Kk Joint device
JP2015098759A (en) 2013-10-15 2015-05-28 ドーエイ外装有限会社 Floor joint device

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