JPS629362Y2 - - Google Patents
Info
- Publication number
- JPS629362Y2 JPS629362Y2 JP3819283U JP3819283U JPS629362Y2 JP S629362 Y2 JPS629362 Y2 JP S629362Y2 JP 3819283 U JP3819283 U JP 3819283U JP 3819283 U JP3819283 U JP 3819283U JP S629362 Y2 JPS629362 Y2 JP S629362Y2
- Authority
- JP
- Japan
- Prior art keywords
- bolt
- cap
- bolt cap
- hole
- shape
- 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
Links
- 230000008602 contraction Effects 0.000 claims description 8
- 239000012779 reinforcing material Substances 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 description 7
- 230000001070 adhesive effect Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 239000003566 sealing material Substances 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Road Paving Structures (AREA)
- Bridges Or Land Bridges (AREA)
Description
【考案の詳細な説明】
本考案は、橋梁、高架道路等の道路橋の道路継
目における伸縮装置のボルトキヤツプに関する。[Detailed Description of the Invention] The present invention relates to a bolt cap for an expansion and contraction device at a road joint of a road bridge such as a bridge or an elevated road.
一般に道路橋の伸縮装置は、対向する床版端部
に遊間を覆うようにしてシールゴム等のボルト穴
を介してアンカーボルトにより固定される。 Generally, an expansion/contraction device for a road bridge is fixed to opposing ends of the deck slab with anchor bolts through bolt holes in seal rubber or the like so as to cover the gap.
このとき、アンカーボルトの頭部やナツトを保
護し、路面との平面さを保つためにボルト穴にシ
ール材（接着材）を充填し、ボルトキヤツプが装
着される。 At this time, the bolt hole is filled with a sealant (adhesive) to protect the head and nut of the anchor bolt and to keep it flush with the road surface, and a bolt cap is attached.
普通に用いられているボルトキヤツプは、エア
抜き孔を残して上方を閉じた円筒状キヤツプで、
ボルト穴内のアンカーボルトの頭部やナツトを覆
うようにしてボルト穴に装着される。 The commonly used bolt cap is a cylindrical cap that is closed at the top leaving an air vent hole.
It is installed in the bolt hole so as to cover the head and nut of the anchor bolt inside the bolt hole.
しかしながら、この種のボルトキヤツプは、工
事後の交通開放時に車輛の走行等により、はずれ
て飛散することがしばしばある。特に工事後、早
期に交通開放せざるを得ない場合で、ボルトキヤ
ツプ内のシール材（接着材）が硬化する前の交通
開放直後はなおさらである。また、未硬化のシー
ル材（接着材）は走行する車輛の輪荷重により変
形し、ボルトキヤツプを加圧して変形させてしま
い、路面との平面さを失つたり上記同様ボルト穴
からはずれてしまうこともよくある。 However, this type of bolt cap often comes off and scatters due to the running of vehicles when the bolt cap is opened to traffic after construction work. This is especially true if the vehicle must be opened to traffic early after construction, and even more so immediately after the bolt cap is opened to traffic before the sealant (adhesive) inside the bolt cap has hardened. In addition, the uncured sealing material (adhesive material) deforms due to the wheel load of a running vehicle, pressurizes and deforms the bolt cap, causing it to lose its flatness with the road surface or come off the bolt hole as described above. This often happens.
そのため、ボルトキヤツプの外周に突条環を設
けて、ボルト穴の内壁と突条環との摩擦力によつ
てボルトキヤツプがボルト穴から抜けないように
する手段が提案されるようになり、実公昭51−
48431号公報にも開示されている。 Therefore, a method has been proposed in which a protruding ring is provided on the outer circumference of the bolt cap to prevent the bolt cap from coming out of the bolt hole due to the frictional force between the inner wall of the bolt hole and the protruding ring. Kosho 51-
It is also disclosed in Publication No. 48431.
ここに開示されたボルトキヤツプは、ボルト穴
に装着後は、ボルト穴から抜けにくいことは認め
られるが、装着の際に、突条環がボルト穴内壁全
内周に密接してしまい、突条環とボルト穴内壁と
ボルトキヤツプ外壁とに囲まれた内部の空気や接
着材はボルトキヤツプ装着時に押圧されても逃げ
場がなくなり、ボルトキヤツプの装着に困難をき
たす。また、ボルトキヤツプは、一般的にはゴム
等により形成されているため、装着することがで
きても工事後の早期交通開放による未硬化のシー
ル材（接着材）及びボルトキヤツプ本体の輪荷重
による加圧変形による変形を避けられない。 It is recognized that the bolt cap disclosed herein is difficult to remove from the bolt hole after it is installed in the bolt hole, but when it is installed, the protrusion ring comes in close contact with the entire inner periphery of the bolt hole inner wall, and the protrusion ring The air and adhesive inside the ring, the inner wall of the bolt hole, and the outer wall of the bolt cap have no place to escape even if they are pressed when the bolt cap is attached, making it difficult to attach the bolt cap. In addition, bolt caps are generally made of rubber, etc., so even if they can be installed, uncured sealing material (adhesive) and wheel loads on the bolt cap body may be caused by early opening to traffic after construction. Deformation due to pressure deformation cannot be avoided.
本考案は、このような欠点を解決するためにな
されたもので、その構成をエア抜き孔を残して上
方を閉じた円筒状キヤツプに円筒状キヤツプの形
状に適合する補強材を一体化するとともに外側外
周に突条を不連続に設けたことを特徴とする道路
橋伸縮装置のボルトキヤツプとするものである。 The present invention was developed to solve these drawbacks, and consists of a cylindrical cap that is closed at the top with an air vent hole, and a reinforcing material that fits the shape of the cylindrical cap. This is a bolt cap for a road bridge expansion/contraction device characterized by discontinuously provided protrusions on the outer periphery.
つぎに、本考案の実施例を図面に基いて説明す
る。 Next, embodiments of the present invention will be described based on the drawings.
第１図、第２図及び第３図において、１はボル
トキヤツプ本体、２はエア抜き孔、３は突条、４
は補強材である。 In Figures 1, 2, and 3, 1 is the bolt cap body, 2 is the air vent hole, 3 is the protrusion, and 4 is the bolt cap body.
is a reinforcement.
本体１はゴム製で円筒状にして、エア抜き孔２
を残して上方を閉じその内面に本体１の形状に適
合する形状のたとえば山高帽状の鋼製の補強材４
を一体化してなり、外周には、突条３が不連続に
設けられてなつている。なお突条３は、補強材４
を本体の外周に突出させて形成してもゴムを突出
させても別材であつてもいずれでもよい。第４図
は、ボルトキヤツプの別の実施例を示すものであ
る。 The main body 1 is made of rubber and has a cylindrical shape, and has an air vent hole 2.
The upper part is closed, leaving a steel reinforcing member 4 on the inner surface, for example, in the shape of a bowler hat, having a shape that matches the shape of the main body 1.
The protrusions 3 are discontinuously provided on the outer periphery. Note that the protrusion 3 is a reinforcing material 4
It may be formed by protruding from the outer periphery of the main body, by protruding rubber, or by a separate material. FIG. 4 shows another embodiment of the bolt cap.
このようにしてなるボルトキヤツプ１は、第５
図及び第６図に示すように用いられる。 The bolt cap 1 made in this way has the fifth
It is used as shown in FIG.
第５図は、対向する床版端部５に遊間６を覆う
ようにアンカーボルト７等によつて取り付けられ
るゴム製伸縮装置８を示す。ゴム製伸縮装置８を
固定するアンカーボルト７は、ゴム製伸縮装置８
のボルト穴９に頭部を出しナツト１０により締め
られている。ボルト穴９にはシール材（接着材）
１１が充填されている。ボルトキヤツプ１は、ア
ンカーボルト７の頭部及びナツトを覆うようにし
てボルト穴内壁に装着される。 FIG. 5 shows a rubber expansion/contraction device 8 attached to the opposing floor slab ends 5 by anchor bolts 7 or the like so as to cover the play space 6. The anchor bolt 7 that fixes the rubber expansion and contraction device 8 is the rubber expansion and contraction device 8.
The head is exposed in the bolt hole 9 and is tightened with a nut 10. Seal material (adhesive material) for bolt hole 9
11 is filled. The bolt cap 1 is attached to the inner wall of the bolt hole so as to cover the head and nut of the anchor bolt 7.
しかして、本考案に係るボルトキヤツプはつぎ
の効果を有する。 Therefore, the bolt cap according to the present invention has the following effects.
まず第１にボルトキヤツプの外周に突条が不連
続に設けられているので、この突条とボルト穴の
内壁との摩擦力により、車輛の走行等の衝撃にも
ボルトキヤツプが飛散することを防止できる。 First of all, since the protrusions are discontinuously provided on the outer circumference of the bolt cap, the frictional force between the protrusions and the inner wall of the bolt hole prevents the bolt cap from flying off due to impacts such as when the vehicle is running. It can be prevented.
つぎに、ボルトキヤツプの外周に突条が不連続
に設けられているのでボルト穴にボルトキヤツプ
を装着する際、ボルト穴の内壁と、ボルトキヤツ
プの外壁にあるシール材（接着材）等は、不連続
個所から上方へ逃げることができ、ボルトキヤツ
プの装着が容易となる。すなわち、不連続個所が
エア抜き孔と同様の働きをする。 Next, since the protrusions are discontinuously provided on the outer circumference of the bolt cap, when attaching the bolt cap to the bolt hole, the sealing material (adhesive material) etc. on the inner wall of the bolt hole and the outer wall of the bolt cap is It is possible to escape upward from the discontinuity, making it easier to install the bolt cap. In other words, the discontinuous portion functions similarly to an air bleed hole.
また、ボルトキヤツプの形状に適合する補強材
を一体化したので車輛走行時の車輛の輪荷重の加
圧によるボルトキヤツプの変形を防止することが
できる。 Furthermore, since the reinforcing material that conforms to the shape of the bolt cap is integrated, it is possible to prevent the bolt cap from deforming due to the pressure of the wheel load of the vehicle when the vehicle is running.
図面は、本考案の実施例を示したもので、第１
図は、ボルトキヤツプの斜視図、第２図は、断面
図、第３図は、底面図、第４図は、ボルトキヤツ
プの別の実施例を示す断面図、第５図は、橋梁伸
縮装置のボルト穴にボルトキヤツプを装着した状
態を示す断面図、第６図は、同じく装着状態を示
す部分拡大断面図である。
図面において、１はボルトキヤツプ、２はエア
抜き孔、３は突条、４は補強材である。
The drawings show an embodiment of the present invention.
Figure 2 is a perspective view of the bolt cap, Figure 2 is a sectional view, Figure 3 is a bottom view, Figure 4 is a sectional view showing another embodiment of the bolt cap, and Figure 5 is a bridge expansion and contraction device. FIG. 6 is a partially enlarged sectional view showing the bolt cap installed in the bolt hole. In the drawings, 1 is a bolt cap, 2 is an air vent hole, 3 is a protrusion, and 4 is a reinforcing member.
Claims (1)
プに円筒状キヤツプの形状に適合する形状の補強
材を一体化するとともに外側外周に突条を不連続
に設けたことを特徴とする道路橋伸縮装置のボル
トキヤツプ。 An expansion/contraction road bridge characterized by integrating a reinforcing material with a shape that matches the shape of the cylindrical cap into a cylindrical cap that is closed at the top with an air vent hole left, and discontinuously providing protrusions on the outer periphery. Equipment bolt cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3819283U JPS59144005U (en) | 1983-03-16 | 1983-03-16 | Bolt cap of road bridge expansion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3819283U JPS59144005U (en) | 1983-03-16 | 1983-03-16 | Bolt cap of road bridge expansion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59144005U JPS59144005U (en) | 1984-09-26 |
| JPS629362Y2 true JPS629362Y2 (en) | 1987-03-04 |
Family
ID=30168865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3819283U Granted JPS59144005U (en) | 1983-03-16 | 1983-03-16 | Bolt cap of road bridge expansion device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59144005U (en) |
-
1983
- 1983-03-16 JP JP3819283U patent/JPS59144005U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59144005U (en) | 1984-09-26 |
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