JPS6132052Y2 - - Google Patents
Info
- Publication number
- JPS6132052Y2 JPS6132052Y2 JP1981133693U JP13369381U JPS6132052Y2 JP S6132052 Y2 JPS6132052 Y2 JP S6132052Y2 JP 1981133693 U JP1981133693 U JP 1981133693U JP 13369381 U JP13369381 U JP 13369381U JP S6132052 Y2 JPS6132052 Y2 JP S6132052Y2
- Authority
- JP
- Japan
- Prior art keywords
- steel pipe
- nut
- tightening bolt
- tip
- tightening
- 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
- 229910000831 Steel Inorganic materials 0.000 claims description 42
- 239000010959 steel Substances 0.000 claims description 42
- 239000002184 metal Substances 0.000 claims description 7
- 230000001681 protective effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000004567 concrete Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
Landscapes
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Description
【考案の詳細な説明】
この考案は建設現場における足場用の鋼管等を
緊締するための鋼管クランプに関するものであ
る。[Detailed description of the invention] This invention relates to a steel pipe clamp for tightening steel pipes for scaffolding at construction sites.
一般に建設現場等で用いられる鋼管クランプ
は、第１図に示すように、本体金具１とフタ金具
２の基端部がピン３にて枢着されており、本体金
具１とフタ金具２の対向する内面には、鋼管を挾
持するための鋼管締付面４，４が設けられてい
る。また、本体金具１の先端部には、ピン３と平
行に保持された枢支ピン５を介して締付ボルト
６′の一端が枢着されており、締付ボルト６′の自
由端部には、ナツト７′が螺合されている。そし
て、フタ金具２の先端部には、締付ボルト６′の
自由端部を案内するための開口溝８が設けられて
おり、開口溝８の両側外面にはナツト７′の下面
が安定して着座するための座面が形成されてい
る。したがつて、本体金具１とフタ金具２の鋼管
締付面４，４間に鋼管を挾持し、締付ボルト６′
の自由端部を、第１図に示すようにフタ金具２の
先端部に係合してナツト７′により締付ければ、
鋼管は緊締されて強固な足場等が簡単に架設され
たことになる。 In a steel pipe clamp generally used at construction sites, etc., as shown in Fig. 1, the proximal ends of the main body fitting 1 and the lid fitting 2 are pivotally connected with a pin 3, and the main body fitting 1 and the lid fitting 2 are opposed to each other. The inner surface thereof is provided with steel pipe clamping surfaces 4, 4 for clamping the steel pipe. Further, one end of a tightening bolt 6' is pivotally attached to the tip of the main body fitting 1 via a pivot pin 5 held parallel to the pin 3, and the free end of the tightening bolt 6' The nut 7' is screwed together. An opening groove 8 is provided at the tip of the lid fitting 2 to guide the free end of the tightening bolt 6', and the lower surface of the nut 7' is stabilized on both outer surfaces of the opening groove 8. A seat surface is formed for sitting on the seat. Therefore, the steel pipe is held between the steel pipe clamping surfaces 4, 4 of the main body fitting 1 and the lid fitting 2, and the tightening bolt 6'
If the free end of is engaged with the tip of the lid fitting 2 as shown in FIG. 1 and tightened with the nut 7',
The steel pipes were tightened and a strong scaffolding etc. was easily erected.
ところが、このような従来の鋼管クランプは、
締付ボルト６′の長さが長いために運搬中に曲つ
たりネジ山が痛んだりするばかりか、締付ボルト
６′の先端がナツト７′の上面より突出し、特に小
径の鋼管を緊締する場合には、ナツト７′の上面
からの突出長さがより長くなり、作業者の作業服
等にひつかかつてきわめて危険であるため、別途
保護カバーをかぶせる等の安全対策を施す必要が
あり、組立作業が面倒でコストがアツプする等の
欠点があつた。また、従来の鋼管クランプは、締
付ボルト６′の自由端部のねじ山が露出した状態
で使用されるため、作業中に締付ボルト６′のね
じ山にコンクリートやモルタル、塗料等が付着し
て固まると、足場等の解体時に鋼管クランプの取
外しが困難となつたり、再使用ができなくなる
等、多くの欠点があつた。 However, such conventional steel pipe clamps
Because the length of the tightening bolt 6' is long, it not only bends during transportation and damages the threads, but also the tip of the tightening bolt 6' protrudes from the top surface of the nut 7', making it difficult to tighten steel pipes with a particularly small diameter. In this case, the length of the nut 7' protruding from the top surface becomes longer, and it is extremely dangerous if it gets caught in the worker's work clothes, so it is necessary to take safety measures such as separately covering it with a protective cover. There were drawbacks such as tedious assembly and increased costs. In addition, because conventional steel pipe clamps are used with the threads of the free end of the tightening bolt 6' exposed, concrete, mortar, paint, etc. may adhere to the threads of the tightening bolt 6' during work. When the steel pipe clamp hardens, it has many disadvantages, such as making it difficult to remove the steel pipe clamp when dismantling the scaffolding, etc., and making it impossible to reuse it.
この考案は上記従来の欠点に鑑み提案されたも
ので、鋼管クランプの締付ボルトの長さを充分短
かくするとともに、ナツトの下面に筒状鞘部をナ
ツトと一体的に設けることにより、安全で長期間
の使用に耐え得る鋼管クランプを提供せんとする
ものである。以下、この考案を図面に示す実施例
に基づいて具体的に説明する。 This idea was proposed in view of the above-mentioned shortcomings of the conventional method, and the length of the tightening bolt of the steel pipe clamp is sufficiently shortened, and a cylindrical sheath is provided integrally with the nut on the lower surface of the nut to ensure safety. The purpose of this invention is to provide a steel pipe clamp that can withstand long-term use. This invention will be specifically explained below based on embodiments shown in the drawings.
第２図はこの考案の一実施例を示す縦断面図
で、第１図に示す部材と同一部材には同一符号が
付されている。第２図に示すこの考案の鋼管クラ
ンプが、第１図に示す従来の鋼管クランプと異な
る点は、締付ボルト６とナツトの構造の点であ
る。 FIG. 2 is a longitudinal sectional view showing an embodiment of this invention, and the same members as those shown in FIG. 1 are given the same reference numerals. The steel pipe clamp of this invention shown in FIG. 2 differs from the conventional steel pipe clamp shown in FIG. 1 in the structure of the tightening bolt 6 and nut.
すなわち、この考案の鋼管クランプの締付ボル
ト６の長さを従来のものと比べると充分に短かく
されており、例えば小径の鋼管を緊締したとして
も、鋼管緊締時におけるナツト７の上面より、締
付ボルト６の先端が突出しないような長さとなつ
ている。 That is, the length of the tightening bolt 6 of the steel pipe clamp of this invention is sufficiently short compared to the conventional one, and even when tightening a small diameter steel pipe, for example, the length of the tightening bolt 6 of the steel pipe clamp is shorter than the top surface of the nut 7 when the steel pipe is tightened. The length is such that the tip of the tightening bolt 6 does not protrude.
また、鋼管クランプのナツト７の下面には、筒
状鞘部７ａがナツト７と一体的に形成されてお
り、筒状鞘部７の内周には、ねじ山が設けれてい
る。したがつて、ナツト７を締付ければ、筒状鞘
部７ａが締付ボルト６の自由端部に螺合し、自由
端部は順次筒状鞘部７ａ内に収納されることにな
る。 Further, a cylindrical sheath portion 7a is formed integrally with the nut 7 on the lower surface of the nut 7 of the steel pipe clamp, and a thread is provided on the inner periphery of the cylindrical sheath portion 7. Therefore, when the nut 7 is tightened, the cylindrical sheath 7a is threaded onto the free end of the tightening bolt 6, and the free end is sequentially accommodated within the cylindrical sheath 7a.
なお、筒状鞘部７ａの長さは、緊締する鋼管が
大径の場合でも、締付ボルト６の自由端部と筒状
鞘部７ａの螺合部が緊締力を保持するために必要
な強度を有するような長さに設計されている。ま
た、フタ金具２の先端部に設けられたＵ字状の開
口溝８には、筒状鞘部７ａが案内されるので、開
口溝８の開口巾は筒状鞘部７ａの厚さだけ、広い
開口巾となつている。 Note that the length of the cylindrical sheath portion 7a is determined so that the free end of the tightening bolt 6 and the threaded portion of the cylindrical sheath portion 7a can maintain the tightening force even when the steel pipe to be tightened has a large diameter. The length is designed to provide strength. Further, since the cylindrical sheath part 7a is guided in the U-shaped opening groove 8 provided at the tip of the lid metal fitting 2, the opening width of the opening groove 8 is equal to the thickness of the cylindrical sheath part 7a. It has a wide opening.
次に、第３図は他の実施例を示す部分断面図
で、締付ボルトとナツトのみを取り出して示した
ものである。第２図に示すナツト７の頭部は、め
くら穴となつていが、この実施例に示すナツト７
の頭部には、筒状鞘部７ａの内径と同じ孔７ｂが
貫通されており、筒状鞘部７ａの先端内部に設け
たねじ部７ｃが、締付ボルト６の自由端部に螺合
して締付けられると、締付ボルト６の先端が、ナ
ツト７の頭部の孔７ｂ内にまで進入することがで
きるようになつている。したがつて、第３図に示
す実施例の締付ボルト６は、第２図に示す締付ボ
ルト６よりも少し長くなつている。しかし、逆に
ナツト７の筒状鞘部７ａは、第２図の実施例にお
けるナツト７の筒状鞘部７ａよりも短かくするこ
とができることになる。 Next, FIG. 3 is a partial sectional view showing another embodiment, in which only the tightening bolt and nut are shown. The head of the nut 7 shown in FIG. 2 has a blind hole, but the nut 7 shown in this embodiment has a blind hole.
A hole 7b having the same inner diameter as the cylindrical sheath part 7a is passed through the head of the cylindrical sheath part 7a, and a threaded part 7c provided inside the tip of the cylindrical sheath part 7a is screwed into the free end of the tightening bolt 6. When tightened, the tip of the tightening bolt 6 can enter into the hole 7b in the head of the nut 7. Therefore, the tightening bolt 6 of the embodiment shown in FIG. 3 is slightly longer than the tightening bolt 6 shown in FIG. However, conversely, the cylindrical sheath 7a of the nut 7 can be made shorter than the cylindrical sheath 7a of the nut 7 in the embodiment of FIG.
また、６ａは締付ボルト６の先端面の外周の一
部をつぶして設けた突起であり、ナツト７の筒状
鞘部７ａの先端に設けたねじ部７ｃが締付ボルト
６の自由端部のねじ山からはずれ落ちるのを防止
するストツパーの役目を果している。 Further, 6a is a projection provided by crushing a part of the outer periphery of the tip surface of the tightening bolt 6, and a threaded portion 7c provided at the tip of the cylindrical sheath 7a of the nut 7 is attached to the free end of the tightening bolt 6. It acts as a stopper to prevent the screw from falling off the screw thread.
この第３図に示す締付ボルト６とナツト７を用
いて鋼管クランプを構成しても、第２図に示す鋼
管クランプと同様に鋼管を緊締できることはいう
までもない。 It goes without saying that even if a steel pipe clamp is constructed using the tightening bolt 6 and nut 7 shown in FIG. 3, the steel pipe can be tightened in the same way as the steel pipe clamp shown in FIG.
なお、上記実施例はいずれも直交型クランプや
自在型クランプ等にもそのまま適用することがで
きる。 Incidentally, any of the above embodiments can be applied as is to an orthogonal type clamp, a flexible type clamp, or the like.
以上具体的に説明したように、この考案は基端
部が互いに枢着された本体金具とフタ金具の、対
向する内面に設けた鋼管締付面に鋼管を挾持し、
一端を本体金具の先端部に枢支した締付ボルトの
自由端部を、フタ金具の先端部に係合してナツト
で締付けることにより、鋼管を緊締するようにし
た鋼管クランプにおいて、上記締付ボルトを、そ
の先端が鋼管緊締時におけるナツトの上面より突
出しないよう充分短かくするとともに、ナツトの
下面に、締付ボルトの自由端部に螺合し、かつ自
由端部を収納する筒状鞘部をナツトと一体的に設
けたので、締付ボルトの長さを短かくすることが
でき、例えば小径の鋼管を緊締しても、ナツトの
上面から締付ボルトの先端が突出すことはないか
ら、別途保護カバーをかぶせたりする必要はな
く、安全に作業をすることができ、また、締付ボ
ルトの自由端部は筒状鞘部に収納されるから、従
来のように締付ボルトのねじ山が汚れて、足場等
の解体時に鋼管クランプの取外しが困難となつた
り再使用ができなくなるようなおそれはなく、長
期間の使用に充分耐えることができる等多くの利
点を有するものである。 As explained above in detail, this invention clamps a steel pipe on the steel pipe clamping surfaces provided on the opposing inner surfaces of the main body metal fitting and the lid metal fitting whose base ends are pivotally connected to each other.
In a steel pipe clamp, a steel pipe is tightened by engaging the free end of a tightening bolt, whose one end is pivoted to the tip of a main body fitting, with the tip of a lid fitting and tightening with a nut. The bolt is made sufficiently short so that its tip does not protrude from the top surface of the nut when the steel pipe is tightened, and a cylindrical sheath is provided on the bottom surface of the nut that is threaded onto the free end of the tightening bolt and accommodates the free end. Since the part is provided integrally with the nut, the length of the tightening bolt can be shortened, and for example, even when tightening a small diameter steel pipe, the tip of the tightening bolt will not protrude from the top surface of the nut. Therefore, there is no need to cover the bolt with a separate protective cover, and the work can be carried out safely.In addition, since the free end of the bolt is stored in the cylindrical sheath, it is not necessary to cover the bolt with a separate protective cover. There is no risk that the threads will get dirty and the steel pipe clamp will become difficult to remove or cannot be reused when dismantling the scaffolding, etc., and it has many advantages such as being able to withstand long-term use.
第１図は従来の鋼管クランプの縦断面、第２図
はこの考案の１実施例を示す鋼管クランプの縦断
面図、第３図は締付ボルトとナツトのみを取り出
したた他の実施例を示す部分断面図である。
１……本体金具、２……フタ金具、３……ピ
ン、４……鋼管締付面、５……枢支ピン、６，
６′……締付ボルト、６ａ……突起、６ｂ……軸
受部、６ｃ……ピン孔、７，７′……ナツト、７
ａ……筒状鞘部、７ｂ……孔、７ｃ……ねじ部、
８……開口溝。
Fig. 1 is a vertical cross-section of a conventional steel pipe clamp, Fig. 2 is a longitudinal cross-section of a steel pipe clamp showing one embodiment of this invention, and Fig. 3 is another embodiment in which only the tightening bolt and nut are taken out. FIG. 1...Body metal fitting, 2...Lid fitting, 3...Pin, 4...Steel pipe clamping surface, 5...Pivot pin, 6,
6'...Tightening bolt, 6a...Protrusion, 6b...Bearing part, 6c...Pin hole, 7,7'...Nut, 7
a... Cylindrical sheath part, 7b... Hole, 7c... Threaded part,
8... Opening groove.
Claims (1)
の対向する内面に設けた鋼管締付面に鋼管を挾持
し、一端を本体金具の先端部に枢支した締付ボル
トの自由端部を、フタ金具の先端部に係合してナ
ツトで締付けることにより、鋼管を緊締するよう
にした鋼管クランプにおいて、上記締付ボルト
を、その先端が鋼管緊締時におけるナツトの上面
より突出しないよう充分短かくすると共に、ナツ
トの下面に、締付ボルトの自由端部に螺合し、か
つ、自由端部を収納する筒状鞘部をナツトと一体
的に設けたことを特徴とする、鋼管クランプ。 A steel pipe is held between the steel pipe clamping surfaces provided on the opposing inner surfaces of the main body metal fitting and the lid metal fitting, whose base ends are pivoted to each other, and the free end of the tightening bolt, whose one end is pivoted to the tip of the main body metal fitting, is In a steel pipe clamp that tightens a steel pipe by engaging the tip of a lid fitting and tightening with a nut, the tightening bolt is short enough so that its tip does not protrude from the top surface of the nut when tightening the steel pipe. In addition, the steel pipe clamp is characterized in that a cylindrical sheath part is integrally provided on the lower surface of the nut and is threaded onto the free end of the tightening bolt and accommodates the free end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13369381U JPS5839937U (en) | 1981-09-10 | 1981-09-10 | steel pipe clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13369381U JPS5839937U (en) | 1981-09-10 | 1981-09-10 | steel pipe clamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5839937U JPS5839937U (en) | 1983-03-16 |
| JPS6132052Y2 true JPS6132052Y2 (en) | 1986-09-18 |
Family
ID=29927141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13369381U Granted JPS5839937U (en) | 1981-09-10 | 1981-09-10 | steel pipe clamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5839937U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5418834U (en) * | 1977-07-07 | 1979-02-07 | ||
| JPS5718507U (en) * | 1980-07-04 | 1982-01-30 | ||
| JPS5725213B2 (en) * | 1978-10-13 | 1982-05-28 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56125513U (en) * | 1980-02-27 | 1981-09-24 | ||
| JPS5725213U (en) * | 1980-07-18 | 1982-02-09 |
-
1981
- 1981-09-10 JP JP13369381U patent/JPS5839937U/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5418834U (en) * | 1977-07-07 | 1979-02-07 | ||
| JPS5725213B2 (en) * | 1978-10-13 | 1982-05-28 | ||
| JPS5718507U (en) * | 1980-07-04 | 1982-01-30 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5839937U (en) | 1983-03-16 |
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