JP3366110B2 - Mounting structure of lining plate - Google Patents
Mounting structure of lining plateInfo
- Publication number
- JP3366110B2 JP3366110B2 JP11093394A JP11093394A JP3366110B2 JP 3366110 B2 JP3366110 B2 JP 3366110B2 JP 11093394 A JP11093394 A JP 11093394A JP 11093394 A JP11093394 A JP 11093394A JP 3366110 B2 JP3366110 B2 JP 3366110B2
- Authority
- JP
- Japan
- Prior art keywords
- plate
- nut
- flange
- coil spring
- bolt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Road Paving Structures (AREA)
Description
【発明の詳細な説明】
【０００１】
【産業上の利用分野】この発明は地下工事用の覆工板を
受け部材に仮固定する、覆工板の取付構造に関するもの
である。
【０００２】
【従来技術及び発明が解決しようとする課題】地下工事
用に使用される覆工板は実公昭40-16616号，実公昭42−
1170号，実公昭46−8687号等のように、その下面板に接
続したボルトに係止した挟持部材が受け部材のフランジ
を挟み込むことにより固定されるが、概してボルトやナ
ットの締め付けによって固定作業が完了する構造である
ため、実公昭40-16616号のように締め付けに伴うナット
やボルトの共回りを防止する工夫が必要である。
【０００３】ナットやボルトの共回りは実公昭42−6760
号のようにコイルスプリングの復元力を利用して受け部
材のフランジを挟み込むことにより回避できるが、スプ
リング特有の問題が伴う。ここでは、予め決まったバネ
定数を持つコイルスプリングの復元力に抗してボルトを
下方に押し込み、そのまま挟持部材をフランジ側に向
け、ボルトを解放するのみで固定が完了する簡便さがあ
るが、バネ定数が一定であるため長期の使用に伴う復元
力の損失を見込まなければならない。バネ定数の調節は
コイルスプリングの圧縮変形量を変えることにより可能
で、変形量を大きくすることにより復元力も増大する
が、ボルトの押し込み操作と回転操作時にはそれを越え
る力を必要とする。
【０００４】この発明はコイルスプリングを用いる実公
昭42−6760号の弱点に着目してなされたもので、ボルト
の押し込み操作に大きな力を要せず、挟持部材の回転後
にコイルスプリングの復元力を増大できる取付構造を提
案するものである。
【０００５】
【課題を解決するための手段】本発明では下面板の上方
に位置するボルトの軸部にナットを螺合させ、このナッ
トと、下面板の上面との間に双方に係止するコイルスプ
リングを配置することによりコイルスプリングの復元力
をナットの位置で調節可能にし、ボルトの押し込みに、
最終的にコイルスプリングに与えられる復元力程の力を
要することなく、挟持部材を受け部材側に向ける操作を
完了させる。
【０００６】覆工板は、下面板から下方へ突出するボル
トの軸部に接続した挟持部材と下面板が受け部材のフラ
ンジを挟み込んだ後に、ナットが下面板側へ締め付けら
れ、コイルスプリングの復元力が増大させられた状態で
フランジに固定される。
【０００７】覆工板を受け部材上へ設置した後に、ボル
トの押し込みと回転により挟持部材を受け部材側へ向け
る時には、ナットをコイルスプリングに対して後退させ
ておくことにより、挟持部材による固定が完了する時の
コイルスプリングの復元力より小さい力で操作できる。
覆工板設置時の挟持部材によるフランジの挟み込み操作
がボルトの押し込みと回転で完了することにより設置時
の作業が簡略化される。
【０００８】挟持部材を回転させた後の、下面板と挟持
部材によるフランジの挟み込み時の圧縮力はコイルスプ
リングの復元力に等しいが、この力はナットのコイルス
プリング側への締め付けの程度によって任意に調節さ
れ、挟持部材を回転させてフランジを挟み込む操作とは
無関係に覆工板の固定に十分な力をナットの締め付けに
よって導入できる。
【０００９】コイルスプリングの長期使用による復元力
の低下はナットの締め付け量を大きくすることにより補
える。
【００１０】
【実施例】この発明は図１に示すように下面板11を貫通
し、下面板11から下方へ突出するボルト２の軸部21に、
受け部材９のフランジ91を下面板11と共に挟み込む挟持
部材３が接続した覆工板１を受け部材９のフランジ91に
仮固定するものである。上面板12にはボルト２の押し込
み操作のための操作孔13が明けられる。
【００１１】挟持部材３はそれに溶接され、ボルト２の
下端に螺合するナット６によってボルト２の回転と共に
回転し、その向きは図３に示すようにボルト２の頭部22
に入れられる切込み等の目印によって操作孔13から確認
される。
【００１２】下面板11の上方に位置するボルト２の軸部
21にはナット４が螺合し、このナット４と、下面板11の
上面との間の、ボルト２の軸部21回りにナット４と下面
板11の双方に係止するコイルスプリング５が配置され
る。
【００１３】挟持部材３はそれによるフランジ91の挟み
込み時に下面板11の底面に突き当たり、コイルスプリン
グ５への復元力導入時の挟持部材３自身の傾斜を防止す
るスペーサ31と、フランジ91の下面に接触する挟持片32
からＬ形の形状をし、コイルスプリング５の復元力によ
りボルト２が下面板11から上面板12側へ付勢されること
により挟持片32が下面板11と共にフランジ91を挟み込
む。
【００１４】覆工板１は挟持部材３の挟持片32が平面
上、フランジ91と重ならない方向を向いた状態で受け部
材９上に設置され、設置後に操作孔13からボルト２の頭
部22が押し込まれ、回転させられて挟持片32がフランジ
91側に向けられ、その下面に接触する。このボルト２の
回転操作時にはボルト２を手放した時に挟持片32がフラ
ンジ91に接触できる程度の復元力がコイルスプリング５
に予め与えられる。
【００１５】挟持片32がフランジ91側を向いた状態では
コイルスプリング５によって挟持片32がフランジ91に接
触し、下面板11の底面に固定された回り止め７にスペー
サ31が係止することにより挟持部材３の回転が阻止さ
れ、同時にナット４の回転に伴うボルト２の回転も阻止
される。
【００１６】ここでナット４を締め付け、軸部21に対し
て下方へ位置させることによりコイルスプリング５を圧
縮し、挟持片32と下面板11がフランジ91を挟み込む圧縮
力の調節が行われる。コイルスプリング５には挟持部材
３が下面板11と共にフランジ91を挟み込み、覆工板１が
移動しない程度の復元力が与えられる。
【００１７】挟持部材３はコイルスプリング５の圧縮に
伴ってスペーサ31が下面板11の底面に突き当たり、必要
以上の圧縮力の導入とそれに伴う挟持片32の傾斜が防止
される。またコイルスプリング５の、圧縮力の増大に伴
うはらみ等の変形はその周囲に固定される管状の拘束部
材８によって防止される。
【００１８】
【発明の効果】下面板の上方に位置するボルトの軸部に
ナットを螺合させ、このナットと、下面板の上面との間
に双方に係止するコイルスプリングを配置することによ
りコイルスプリングの復元力をナットの位置で調節可能
にしたものであるため、押し込みに大きな力を要するこ
となく、挟持部材を受け部材側に向ける操作を完了させ
ることができる。
【００１９】また挟持部材によるフランジの挟み込み後
にはナットの締め付けによってコイルスプリングの復元
力を増大させることができ、特にナットの締め付け量の
調節でコイルスプリングの復元力が調節されるため、任
意の圧縮力でフランジを挟み込むことが可能になる。
【００２０】覆工板設置時の操作はボルトの押し込みと
回転のみで完了するため、作業が簡略化される。
【００２１】またコイルスプリングの長期使用による復
元力の低下はナットの締め付け量を大きくすることによ
り補うことができる。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lining plate mounting structure for temporarily fixing a lining plate for underground work to a receiving member. 2. Description of the Related Art A lining plate used for underground construction is disclosed in Japanese Utility Model Publication No. 40-16616 and Japanese Utility Model Publication No.
No. 1170, No. 46-8687, etc., the holding member fixed to the bolt connected to the lower surface plate is fixed by sandwiching the flange of the receiving member, but the fixing work is generally done by tightening bolts and nuts. Therefore, it is necessary to take measures to prevent the nuts and bolts from rotating together with the tightening as shown in Japanese Utility Model Publication No. 40-16616. [0003] The co-rotation of nuts and bolts is Jikken 42-6760.
It can be avoided by sandwiching the flange of the receiving member by using the restoring force of the coil spring as shown in the above item, but there is a problem specific to the spring. Here, the bolt is pushed down against the restoring force of the coil spring having a predetermined spring constant, the holding member is directed toward the flange side, and the fixing is completed simply by releasing the bolt, Since the spring constant is constant, loss of restoring force due to long-term use must be expected. The spring constant can be adjusted by changing the amount of compressive deformation of the coil spring, and by increasing the amount of deformation, the restoring force also increases. However, when pushing and rotating the bolt, a force exceeding the force is required. The present invention has been made in view of the weak point of Japanese Utility Model Publication No. Sho 42-6760 which uses a coil spring, and does not require a large force for pushing the bolt in, and reduces the restoring force of the coil spring after the rotation of the holding member. It proposes a mounting structure that can be increased. According to the present invention, a nut is screwed into a shaft of a bolt located above the lower plate, and the nut is engaged with the nut and the upper surface of the lower plate. By arranging the coil spring, the restoring force of the coil spring can be adjusted at the position of the nut.
The operation of turning the holding member toward the receiving member is completed without requiring a force as much as the restoring force finally given to the coil spring. In the lining plate, after the holding member connected to the shaft portion of the bolt projecting downward from the lower plate and the lower plate sandwich the flange of the receiving member, the nut is tightened to the lower plate side to restore the coil spring. It is fixed to the flange with the force increased. After the lining plate is placed on the receiving member, when the holding member is directed toward the receiving member by pushing and rotating the bolt, the nut is retracted with respect to the coil spring, so that the fixing by the holding member is achieved. Can be operated with less force than the restoring force of the coil spring when completed.
The operation at the time of installation is simplified by the operation of inserting the flange by the holding member when the lining plate is installed being completed by pushing and rotating the bolt. [0008] The compression force when the flange is clamped by the lower plate and the clamping member after the rotation of the clamping member is equal to the restoring force of the coil spring, but this force is arbitrary depending on the degree of tightening of the nut to the coil spring side. And a force sufficient to fix the lining plate can be introduced by tightening the nuts, independently of the operation of rotating the holding member to sandwich the flange. A decrease in the restoring force due to long-term use of the coil spring can be compensated for by increasing the amount of tightening of the nut. DETAILED DESCRIPTION OF THE INVENTION As shown in FIG. 1, the present invention is applied to a shaft portion 21 of a bolt 2 which penetrates a lower plate 11 and protrudes downward from the lower plate 11.
The lining plate 1 to which the sandwiching member 3 for sandwiching the flange 91 of the receiving member 9 together with the lower surface plate 11 is temporarily fixed to the flange 91 of the receiving member 9. An operation hole 13 for pushing the bolt 2 is formed in the upper surface plate 12. The holding member 3 is welded thereto, and is rotated together with the rotation of the bolt 2 by a nut 6 screwed to the lower end of the bolt 2, and its direction is changed to the head 22 of the bolt 2 as shown in FIG.
It is confirmed from the operation hole 13 by a mark such as a notch that is inserted into the hole. Shaft of bolt 2 located above lower plate 11
A nut 4 is screwed into the nut 21, and a coil spring 5 is disposed between the nut 4 and the upper surface of the lower plate 11 around the shaft 21 of the bolt 2 so as to be engaged with both the nut 4 and the lower plate 11. Is done. The holding member 3 abuts against the bottom surface of the lower plate 11 when the flange 91 is sandwiched thereby, and a spacer 31 for preventing the holding member 3 itself from tilting when a restoring force is applied to the coil spring 5, and a lower surface of the flange 91. Contact holding piece 32
When the bolt 2 is urged from the lower surface plate 11 toward the upper surface plate 12 by the restoring force of the coil spring 5, the holding piece 32 sandwiches the flange 91 together with the lower surface plate 11. The lining plate 1 is installed on the receiving member 9 with the holding piece 32 of the holding member 3 facing the plane and in a direction not overlapping the flange 91. Is pressed and rotated, and the holding piece 32 is
It faces the 91 side and contacts its lower surface. When the bolt 2 is rotated, the coil spring 5 has such a restoring force that the holding piece 32 can contact the flange 91 when the bolt 2 is released.
Is given in advance. When the holding piece 32 faces the flange 91 side, the holding piece 32 comes into contact with the flange 91 by the coil spring 5, and the spacer 31 is engaged with the rotation stopper 7 fixed to the bottom surface of the lower plate 11. The rotation of the holding member 3 is prevented, and the rotation of the bolt 2 accompanying the rotation of the nut 4 is also prevented. Here, the nut 4 is tightened, and the coil spring 5 is compressed by positioning the nut 4 downward with respect to the shaft portion 21, so that the compression force with which the holding piece 32 and the lower plate 11 sandwich the flange 91 is adjusted. The holding member 3 sandwiches the flange 91 together with the lower surface plate 11 on the coil spring 5, and a restoring force is applied to the coil spring 5 such that the lining plate 1 does not move. In the holding member 3, the spacer 31 abuts against the bottom surface of the lower plate 11 with the compression of the coil spring 5, thereby preventing the introduction of excessive compressive force and the accompanying inclination of the holding piece 32. In addition, deformation of the coil spring 5 such as entanglement due to an increase in compressive force is prevented by the tubular restraining member 8 fixed around the coil spring 5. According to the present invention, a nut is screwed onto a shaft of a bolt located above the lower plate, and a coil spring is provided between the nut and the upper surface of the lower plate. Since the restoring force of the coil spring can be adjusted by the position of the nut, the operation of directing the holding member toward the receiving member can be completed without requiring a large force for pushing. After the flange is clamped by the clamping member, the restoring force of the coil spring can be increased by tightening the nut. In particular, since the restoring force of the coil spring is adjusted by adjusting the amount of tightening of the nut, any compression is possible. It becomes possible to sandwich the flange with force. Since the operation at the time of installing the lining plate is completed only by pushing and rotating the bolt, the operation is simplified. Further, the decrease in the restoring force due to the long-term use of the coil spring can be compensated for by increasing the tightening amount of the nut.
【図面の簡単な説明】
【図１】覆工板と受け部材の関係を示した断面図であ
る。
【図２】図２の一部拡大図である。
【図３】図１の平面図である。
【符号の説明】
１……覆工板、11……下面板、12……上面板、13……操
作孔、２……ボルト、21……軸部、22……頭部、３……
挟持部材、31……スペーサ、32……挟持片、４……ナッ
ト、５……コイルスプリング、６……ナット、７……回
り止め、８……拘束部材、９……受け部材、91……フラ
ンジ。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view showing a relationship between a lining plate and a receiving member. FIG. 2 is a partially enlarged view of FIG. 2; FIG. 3 is a plan view of FIG. 1; [Description of Signs] 1 ... lining plate, 11 ... bottom plate, 12 ... top plate, 13 ... operation hole, 2 ... bolt, 21 ... shaft, 22 ... head, 3 ...
Holding member, 31 Spacer, 32 Holding piece, 4 Nut, 5 Coil spring, 6 Nut, 7 Detent, 8 Restriction member, 9 Reception member, 91 ... Flanges.
Claims (1)
するボルトの軸部に、受け部材のフランジを下面板と共
に挟み込む挟持部材が接続した覆工板を受け部材のフラ
ンジに仮固定する取付構造であり、下面板の上方に位置
するボルトの軸部にはナットが螺合し、このナットと、
下面板の上面との間に双方に係止するコイルスプリング
が配置されており、覆工板は挟持部材と下面板が受け部
材のフランジを挟み込んだ後に、ナットが下面板側へ締
め付けられ、コイルスプリングの復元力が増大させられ
た状態でフランジに固定されていることを特徴とする覆
工板の取付構造。(57) [Claim 1] A lining plate in which a clamping member that clamps a flange of a receiving member together with a lower surface plate is connected to a shaft portion of a bolt that penetrates the lower surface plate and protrudes downward from the lower surface plate. The mounting structure is temporarily fixed to the flange of the receiving member, a nut is screwed into the shaft of the bolt located above the lower plate, and this nut,
A coil spring that locks to both sides is arranged between the upper surface of the lower plate and the lining plate. After the clamping member and the lower plate sandwich the flange of the receiving member, the nut is tightened to the lower plate side, and the coil is A mounting structure for a lining plate, wherein the spring is fixed to a flange in a state where a restoring force is increased.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11093394A JP3366110B2 (en) | 1994-05-25 | 1994-05-25 | Mounting structure of lining plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11093394A JP3366110B2 (en) | 1994-05-25 | 1994-05-25 | Mounting structure of lining plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07317007A JPH07317007A (en) | 1995-12-05 |
| JP3366110B2 true JP3366110B2 (en) | 2003-01-14 |
Family
ID=14548282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11093394A Expired - Fee Related JP3366110B2 (en) | 1994-05-25 | 1994-05-25 | Mounting structure of lining plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3366110B2 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100508773B1 (en) * | 2002-10-30 | 2005-08-17 | 유근무 | A Floor of Temporary Bridge for using Seet Pile and It's Constructing Method |
| JP4502936B2 (en) * | 2004-11-12 | 2010-07-14 | ジェコス株式会社 | Lining board mounting structure |
| KR100772088B1 (en) * | 2006-12-18 | 2007-11-01 | 주식회사 미래 | Locking system for cover plate |
| KR100847611B1 (en) * | 2007-03-20 | 2008-07-21 | 명근학 | Prestress concrete deck plate |
| KR100862103B1 (en) * | 2007-04-27 | 2008-10-09 | (주)경동기술공사 | A lightweight and long span deck plates for prestress with the largest eccentricity |
| KR101106063B1 (en) * | 2009-03-04 | 2012-01-18 | 유호산업개발(주) | Locking device for cover plates |
| JP5966142B2 (en) * | 2012-02-20 | 2016-08-10 | 前田製品販売株式会社 | Connection structure of concrete products |
| JP6258100B2 (en) * | 2014-03-28 | 2018-01-10 | 日鐵住金建材株式会社 | Panel mounting structure and panel having the mounting structure |
| JP6510932B2 (en) * | 2015-08-20 | 2019-05-08 | 日本製鉄株式会社 | Method of manufacturing lining plate fastening device and lining plate fastening method |
| KR20180000626U (en) * | 2016-08-24 | 2018-03-06 | 주식회사 평안철강 | Fixing apparatus for deck plate |
| JP6758698B1 (en) * | 2020-06-25 | 2020-09-23 | 株式会社和建 | Lining plate outer frame |
-
1994
- 1994-05-25 JP JP11093394A patent/JP3366110B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07317007A (en) | 1995-12-05 |
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