JP3443035B2 - Connecting pins for scaffolding frames - Google Patents
Connecting pins for scaffolding framesInfo
- Publication number
- JP3443035B2 JP3443035B2 JP13664599A JP13664599A JP3443035B2 JP 3443035 B2 JP3443035 B2 JP 3443035B2 JP 13664599 A JP13664599 A JP 13664599A JP 13664599 A JP13664599 A JP 13664599A JP 3443035 B2 JP3443035 B2 JP 3443035B2
- Authority
- JP
- Japan
- Prior art keywords
- pin body
- pin
- posture
- support rod
- engaging projection
- 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
- Mutual Connection Of Rods And Tubes (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、順次上方に連結し
ていくのに適した仮設用足場建枠の連結ピンに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting pin for a scaffolding construction frame for temporary construction, which is suitable for sequentially connecting upwards.
【０００２】[0002]
【従来の技術】建物の建築現場において、足場建枠を順
次上方に組み立てていくには、上下に対向する足場建枠
を互いに連結するための連結手段が必要となる。この連
結手段として、下方側の足場建枠の左右上端部に連結ピ
ンを突設し、これに上方側の足場建枠の左右上端部を差
し込むようにしている。2. Description of the Related Art In a construction site of a building, in order to sequentially assemble the scaffolding frames upward, a connecting means for connecting the vertically facing scaffolding frames to each other is required. As this connecting means, connecting pins are provided so as to project from the left and right upper end portions of the lower scaffold building frame, and the left and right upper end portions of the upper scaffold building frame are inserted therein.
【０００３】しかして、従来の連結ピンでは、中空状ピ
ン本体の内部に、ばねに付勢されてピン本体の外部に突
出する係合突起を設け、係合突起に、この係合突起をば
ねの付勢力に抗してピン本体の内部に退入力を負荷する
滑り面と、この係合突起をピン本体の内部方向の退入位
置に係合する係合段部とを設けている。However, in the conventional connecting pin, the hollow pin main body is provided with an engaging projection that is biased by the spring and projects outside the pin main body, and the engaging projection is spring-loaded. There is provided a sliding surface that applies a retraction force to the inside of the pin body against the urging force of the pin body, and an engagement step portion that engages the engagement protrusion with the retracted position in the inner direction of the pin body.
【０００４】この連結ピンの使用において、下方側足場
建枠の縦パイプにその下端側を連結したピン本体に、上
方側足場建枠の縦パイプの下端部を差し込むことによっ
て、その差込み途上で、係合突起の滑り面に縦パイプの
下端が当接し、その当接力により負荷される退入力によ
って係合突起がピン本体内部に退入し、縦パイプの下端
部がピン本体に挿入され、この挿入途上で、係合突起が
ばねに付勢されて縦パイプ下端部の係合孔に係合し、ロ
ック状態となって上下の足場建枠が互いに連結される。
そして、足場建枠を取り外すときは、上方側足場建枠の
縦パイプ下端部から突出している係合突起を作業者の足
先等で退入方向に押圧すれば、その退入途上で係合突起
が係合段部に係合して退入位置、即ち解放位置に保持さ
れるから、上方側足場建枠の縦パイプをピン本体から抜
き出して、足場建枠は取り外すことができる。In using this connecting pin, by inserting the lower end of the vertical pipe of the upper scaffolding frame into the pin body in which the lower end side is connected to the vertical pipe of the lower scaffolding frame, on the way of insertion, The lower end of the vertical pipe abuts on the sliding surface of the engaging protrusion, and the engaging protrusion retracts into the pin body due to the retraction force applied by the contact force, and the lower end of the vertical pipe is inserted into the pin body. During the insertion, the engaging projection is biased by the spring to engage with the engaging hole at the lower end of the vertical pipe, and in the locked state, the upper and lower scaffold building frames are connected to each other.
When removing the scaffolding frame, the engaging protrusions protruding from the lower end of the vertical pipe of the upper side scaffolding frame are pushed in the direction of withdrawal by the operator's foot or the like, and the engagement is performed during the withdrawal. Since the projection engages with the engagement step and is held in the retracted position, that is, the released position, the vertical pipe of the upper scaffolding frame can be pulled out from the pin body and the scaffolding frame can be removed.
【０００５】[0005]
【発明が解決しようとする課題】上記従来の連結ピンで
は、上下足場建枠が連結された状態において、上方側足
場建枠の縦パイプ下端部から外部に突出している係合突
起の先端突出部を押圧することによって、係合突起がロ
ック解除位置に保持されることから、作業中に物や作業
者の足が係合突起の先端突出部に当たると、この係合突
起が押されて、知らぬ間に係合突起が解放状態となり、
不測の事態をまねくおそれがあった。In the above-mentioned conventional connecting pin, in the state where the upper and lower scaffolding building frames are connected, the tip projection portion of the engaging projection projecting outward from the lower end portion of the vertical pipe of the upper side scaffolding building frame. By pressing, the engaging projection is held in the unlocked position, so if an object or a worker's foot hits the tip protrusion of the engaging projection during work, this engaging projection is pushed and the The engaging projection is released while
There was a risk of causing an unexpected situation.
【０００６】本発明は、上記のような課題に鑑み、足場
建枠が相互に連結された状態において係合突起が簡単に
解放状態となることがなく、作業上の安全性を確保でき
るようにした連結ピンを提供することを目的とする。In view of the above problems, the present invention ensures that the engagement projections are not easily released when the scaffolding frames are connected to each other, thus ensuring work safety. The purpose of the present invention is to provide a connecting pin.
【０００７】[0007]
【課題を解決するための手段】請求項１に係る発明の足
場建枠用連結ピンは、中空状ピン本体７の内部に、ピン
本体７の内壁に沿って軸方向に延びる支持杆１２と、支
持杆１２の上端部及び下端部に設けられて夫々ピン本体
７の外部に突出する係合突起９及び連結用突起１１と、
支持杆１２を介して前記両突起９，１１をピン本体７の
外部に突出させるように付勢するばね１３とを設け、ピ
ン本体７には、外部に操作片１９を突出したロック部材
２０を、支持杆１２との間で、ピン本体７の内壁に沿っ
て平行に位置するロック姿勢と、ロック姿勢から部材上
端部側がピン本体７内壁から離れるように傾転した非ロ
ック姿勢とに亘って姿勢変更可能に設け、前記操作片１
９を引き起こしてロック部材２０をロック姿勢から非ロ
ック姿勢に傾転させることにより、係合突起９がばね付
勢力に抗してピン本体７内部へ後退するようにしたこと
を特徴とする。According to a first aspect of the present invention, there is provided a scaffolding frame connecting pin, wherein a support rod 12 is provided inside a hollow pin body 7 and extends axially along an inner wall of the pin body 7. An engaging projection 9 and a connecting projection 11 which are provided at the upper end and the lower end of the support rod 12 and project to the outside of the pin body 7, respectively.
A spring 13 for urging the projections 9 and 11 so as to project to the outside of the pin body 7 via a support rod 12 is provided, and a lock member 20 that projects an operation piece 19 to the outside is provided on the pin body 7. Between the support rod 12 and the lock rod, which is parallel to the inner wall of the pin body 7, and the non-lock posture in which the upper end of the member is tilted away from the inner wall of the pin body 7 from the lock posture. The operation piece 1 is provided so that the posture can be changed.
9 is caused to tilt the lock member 20 from the locked posture to the non-locked posture, so that the engaging projection 9 is retracted into the pin body 7 against the spring biasing force.
【０００８】請求項２は、請求項１に記載の足場建枠用
連結ピンにおいて、支持杆１２下端部の連結用突起１１
を、支持杆１２に対しその長手方向前後に若干量スライ
ドできるように取り付けてなることを特徴とする。According to a second aspect of the present invention, in the scaffolding frame connecting pin according to the first aspect, the connecting projection 11 at the lower end of the support rod 12 is used.
Is attached to the support rod 12 so that the support rod 12 can slide a little forward and backward in the longitudinal direction thereof.
【０００９】請求項３は、請求項１又は２に記載の足場
建枠用連結ピンにおいて、係合突起９の先端部は、ロッ
ク部材２０が非ロック姿勢にあって係合突起９がばね付
勢力に抗して後退している時でも、ピン本体７の外側面
から若干突出した状態にあり、しかして係合突起９の先
端部が押圧されて係合突起９が更にピン本体７内に後退
されることにより、ロック部材２０は、支持杆１２との
押接状態から解放されて、その自重によりロック姿勢に
傾転するようになっていることを特徴としている。According to a third aspect of the present invention, in the scaffolding frame connecting pin according to the first or second aspect, the tip end portion of the engagement protrusion 9 has the lock member 20 in the unlocked posture and the engagement protrusion 9 is spring-loaded. Even when retracting against the force, it is in a state of slightly protruding from the outer surface of the pin main body 7, and the tip of the engaging projection 9 is pressed so that the engaging projection 9 further moves into the pin main body 7. When the lock member 20 is retracted, the lock member 20 is released from the pressed state with the support rod 12, and is tilted to the lock posture by its own weight.
【００１０】[0010]
【発明の実施の形態】図１は、上方側の足場建枠ａと下
方側の足場建枠ｂとの連結前の状態を示す。各足場建枠
ａ，ｂは、左右の縦パイプ１，１と両パイプ１，１をつ
なぐ横パイプ２と縦横パイプ１，２間にわたって取り付
けられた補強桟３，３とからなるもので、横パイプ２に
は足場板４が、その爪４ａを横パイプ２に掛合すること
によって懸架されている。そして、各縦パイプ１の下端
部には足場板４側に面して係合孔５が穿設されており、
上下足場建枠ａ，ｂの対向する縦パイプ１，１間に本発
明に係る連結ピン６が差し込まれるようになっている。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a state before an upper scaffolding frame a and a lower scaffolding frame b are connected. Each scaffold building frame a, b is composed of left and right vertical pipes 1, 1 and a horizontal pipe 2 connecting both pipes 1, 1 and reinforcing bars 3, 3 attached between the vertical and horizontal pipes 1, 2. A scaffolding plate 4 is suspended from the pipe 2 by engaging its claws 4a with the lateral pipe 2. An engaging hole 5 is formed at the lower end of each vertical pipe 1 facing the scaffolding plate 4 side.
The connecting pin 6 according to the present invention is inserted between the vertical pipes 1 and 1 of the upper and lower scaffolding building frames a and b facing each other.
【００１１】図２は、連結ピン６の外観斜視図で、同図
の（Ａ）は、後述するロック部材２０がロック姿勢にあ
って、係合突起９がピン本体７の外部に突出している状
態を示し、（Ｂ）は、ロック部材２０が非ロック姿勢に
あって、係合突起９がピン本体７内部へ後退している状
態を示す。図３の（Ａ）は、図２の（Ａ）に示される状
態にある連結ピン６の正面図、同図の（Ｂ）はその縦断
面図である。また、図４及び図５は、連結ピン６によっ
て下方側足場建枠ｂに上方側足場建枠ａを連結する場合
及び上方側足場建枠ａを取り外す場合の作用を示す縦断
面図である。FIG. 2 is an external perspective view of the connecting pin 6. In FIG. 2A, a lock member 20 described later is in a locked posture, and an engagement projection 9 projects outside the pin body 7. FIG. 3B shows a state in which the lock member 20 is in the unlocked posture and the engagement projection 9 is retracted into the pin body 7. 3A is a front view of the connecting pin 6 in the state shown in FIG. 2A, and FIG. 3B is a longitudinal sectional view thereof. 4 and 5 are vertical cross-sectional views showing the operation when connecting the upper scaffold building frame a to the lower scaffold building frame b by the connecting pin 6 and when removing the upper scaffold building frame a.
【００１２】これらの図から分かるように、連結ピン６
は円管状のピン本体７を有し、このピン本体７の軸方向
中央部に短管部材８が嵌合固着されて、この短管部材８
とピン上部７ａ及びピン下部７ｂとの間に外周段部８
ａ，８ｂを形成し、ピン上部７ａに差し込まれる上方側
足場建枠ａの縦パイプ１と、ピン下部７ｂに差し込まれ
る下方側足場建枠ｂの縦パイプ１とは、それぞれの端面
が上記外周段部８ａ，８ｂに当接して位置決めされ、そ
の位置で縦パイプ１下端部の係合孔５にピン本体７から
突出する係合突起９が係合すると共に、下方側足場建枠
ｂの縦パイプ１上端部の連結孔１０にピン本体７の連結
用突起１１が係合するようになっている。尚、短管部材
８に代えて、ピン本体７の軸方向中央部を肉厚に一体形
成するようにしてもよい。As can be seen from these figures, the connecting pin 6
Has a circular tube-shaped pin body 7, and a short tube member 8 is fitted and fixed to an axially central portion of the pin body 7.
And an outer peripheral step portion 8 between the pin upper portion 7a and the pin lower portion 7b.
The vertical pipe 1 of the upper scaffolding building frame a that forms a and 8b and is inserted into the pin upper portion 7a and the vertical pipe 1 of the lower scaffolding building frame b that is inserted into the pin lower portion 7b have their respective end surfaces on the outer circumference. Positioning is performed by abutting on the stepped portions 8a and 8b, and at that position, the engaging projection 5 projecting from the pin body 7 engages with the engaging hole 5 at the lower end of the vertical pipe 1, and the vertical direction of the lower scaffolding building frame b The connecting projection 10 of the pin body 7 is adapted to engage with the connecting hole 10 at the upper end of the pipe 1. Instead of the short pipe member 8, the axial center portion of the pin body 7 may be integrally formed to be thick.
【００１３】係合突起９は、ピン本体７の内壁に沿って
軸方向に延びる支持杆１２の上端部に垂直横向きに突設
されており、支持杆１２の下端部には連結用突起１１が
係合突起９と同じ垂直横向きに突設されてはいるが、こ
の連結用突起１１は、支持杆１２の長手方向前後に若干
量スライドできるように支持杆１２に取り付けられてい
る。支持杆１２の背面側にはその長手方向中央部に、両
端部がピン本体７の内壁面に摺動可能に弾接される側面
視円弧状の板ばね１３の長手方向中央部が固着され、こ
の板ばね１３の付勢力によって、係合突起９及び連結用
突起１１がピン上部７ａのピン孔１４ａ及びピン下部７
ｂのピン孔１４ｂから夫々外部に突出するようになって
いる。また、係合突起９の上面側には下方に向かって傾
斜する滑り面１７が形成されると共に、この係合突起９
の下面側先端部には上方に向かって傾斜する副滑り面１
８が形成されている。The engaging projection 9 is provided on the upper end of a support rod 12 extending in the axial direction along the inner wall of the pin body 7 so as to extend vertically and laterally. The lower end of the support rod 12 is provided with a connecting projection 11. The connecting projection 11 is attached to the support rod 12 so that it can slide a little forward and backward in the longitudinal direction of the support rod 12, although it is provided to project in the same vertical direction as the engaging projection 9. On the back side of the support rod 12, a central portion in the longitudinal direction of a leaf spring 13, which is arcuate in side view and is slidably contacted with the inner wall surface of the pin body 7, is fixed to the central portion in the longitudinal direction. Due to the biasing force of the leaf spring 13, the engagement protrusion 9 and the coupling protrusion 11 cause the pin hole 14a of the pin upper portion 7a and the pin lower portion 7
Each of the pin holes 14b of b is projected to the outside. Further, a sliding surface 17 that is inclined downward is formed on the upper surface side of the engagement projection 9 and the engagement projection 9 is formed.
A sub-sliding surface 1 which is inclined upward at the lower end of the lower surface of the
8 is formed.
【００１４】支持杆１２は、図３、図６及び図７から分
かるように、板状本体１２ａと両側壁１２ｂ，１２ｂと
によって断面略コ字形に形成されたもので、板状本体１
２ａの一端部（上端部）に係合突起９が取付軸体３０に
よって固着されている。この板状本体１２ａの他端部
（下端部）には板状本体１２ａの長手方向に長い長孔３
１が設けてあって、この長孔３１に連結用突起１１の取
付軸体３２が挿通され、これによって連結用突起１１は
支持杆１２に対し垂直横向き姿勢に保持された状態で支
持杆１２長手方向前後に２ｍｍ程度スライドできるよう
になっている。また板ばね１３は、カシメ材３３によっ
て板状本体１２ａに取付けられている。As can be seen from FIGS. 3, 6 and 7, the support rod 12 is formed by a plate-shaped main body 12a and both side walls 12b, 12b into a substantially U-shaped cross section.
An engaging projection 9 is fixed to one end (upper end) of 2a by a mounting shaft body 30. At the other end (lower end) of the plate-shaped body 12a, a long hole 3 that is long in the longitudinal direction of the plate-shaped body 12a is formed.
1 is provided, and the mounting shaft body 32 of the connecting projection 11 is inserted into the elongated hole 31. As a result, the connecting projection 11 is held in a vertical lateral position with respect to the supporting rod 12, and the supporting rod 12 extends longitudinally. It can be slid back and forth in the direction of about 2 mm. The leaf spring 13 is attached to the plate-shaped main body 12a by the caulking material 33.
【００１５】また、ピン本体７には、外部に操作片１９
を突出させたロック部材２０が、支持杆１２との間にお
いて、図４に示すようにピン本体７の内壁に沿って平行
に位置するロック姿勢と、このロック姿勢から当該部材
１２の上端部側がピン本体７の内壁から離れるように傾
転した図５の（Ａ）に示すような非ロック姿勢とに亘っ
て姿勢変更可能に設けられ、上記操作片１９を引き起こ
してロック部材２０をロック姿勢から非ロック姿勢に傾
転させることにより、係合突起９が板ばね１３の付勢力
に抗してピン本体７の内部へ後退するようになってい
る。Further, the pin body 7 is provided with an operation piece 19 on the outside.
The locking member 20 that protrudes from the support rod 12 is positioned in parallel with the inner wall of the pin body 7 as shown in FIG. The pin body 7 is tilted away from the inner wall of the pin body 7 so as to be capable of changing its posture to an unlocked posture as shown in FIG. 5 (A). By tilting to the non-locked posture, the engaging projection 9 is retracted into the pin body 7 against the biasing force of the leaf spring 13.
【００１６】ロック部材２０は、図３及び図６の（Ｂ）
から分かるように、コ字形断面の支持杆１２内に嵌合さ
れる矩形体状本体部２１の外面側に幅狭の係嵌部２２を
介して操作片１９を一体に突設すると共に、本体部２１
の上端突起部２１ａと幅狭係嵌部２２の上端面との間に
係止用段部２６を形成してなるもので、ピン本体７側に
は、図６の（Ａ）に示すように、ロック部材２０の操作
片１９が挿脱可能な上部側の横長溝部２３と幅狭係嵌部
２２が係脱可能な縦長溝部２４とからなる略Ｔ字形のガ
イド溝２５が、短管部材８とピン本体７とに亘って貫設
されている。しかして、このロック部材２０をピン本体
７に取り付けるにあたっては、図６の（Ｂ）に示すよう
に、ロック部材２０の本体部２１を、支持杆１２内にそ
の長手方向中間部よりも係合突起９側に寄った位置に嵌
合した状態でピン本体７内に挿入し、操作片１９をＴ字
形ガイド溝２５の横長溝部２３から外部へ突出させて、
幅狭係嵌部２２を縦長溝部２４に係嵌させることによ
り、図２の（Ａ）及び図３の（Ａ）、（Ｂ）に示すよう
な状態となる。The lock member 20 is shown in FIG. 3 and FIG. 6 (B).
As can be seen from the above, the operating piece 19 is integrally projected on the outer surface side of the rectangular body portion 21 fitted in the support rod 12 having a U-shaped cross section through the narrow engaging portion 22, and Part 21
The stepped portion 26 for locking is formed between the upper end projecting portion 21a and the upper end surface of the narrow engagement portion 22, and on the pin body 7 side, as shown in FIG. A substantially T-shaped guide groove 25 including an upper lateral groove 23 into which the operating piece 19 of the lock member 20 can be inserted / removed and a vertical groove 24 into which the narrow engagement portion 22 can be engaged / disengaged is provided. And the pin body 7 are provided. Then, when attaching the lock member 20 to the pin body 7, as shown in FIG. 6B, the body portion 21 of the lock member 20 is engaged with the support rod 12 rather than the longitudinal intermediate portion thereof. Inserted into the pin body 7 in a state of being fitted to a position close to the protrusion 9 side, projecting the operating piece 19 from the laterally elongated groove portion 23 of the T-shaped guide groove 25 to the outside,
By engaging the narrow engagement portion 22 with the longitudinal groove portion 24, the state shown in FIGS. 2A and 3A and 3B is obtained.
【００１７】図２の（Ａ）及び図３の（Ａ）、（Ｂ）は
ロック部材２０がロック姿勢となっている状態を示すも
ので、このロック姿勢では、幅狭係嵌部２２がＴ字形ガ
イド溝２５の縦長溝部２４に傾転可能に係嵌していて、
操作片１９が略水平に突出すると共に本体部２１がピン
本体７の内壁に沿って平行に位置している。このロック
姿勢の状態から、図５（Ａ）に示すように操作片１９を
上向きに引き起こして、本体部２１をその上端部側がピ
ン本体７内壁から離れるように傾転させ、ロック部材２
０を非ロック姿勢に姿勢変更することによって、支持杆
１２の上端部側、即ち係合突起９側が、ばね１３の付勢
力に抗して下端部の連結用突起１１を中心に傾倒し、そ
れにより係合突起９は図５（Ａ）のようにピン本体７の
内部側へ後退して解放状態となる。この時、ロック部材
２０の係止用段部２６がＴ字形ガイド溝２５の横長溝部
２３上端とピン本体７内壁との隅角部に係止されると共
に、本体部２１の内面側上端部が支持杆１２に押接さ
れ、この状態でロック部材２０は非ロック姿勢に保持さ
れている。2A and 3A and 3B show a state in which the lock member 20 is in the lock posture, and in this lock posture, the narrow engagement portion 22 is T. The vertically elongated groove portion 24 of the character-shaped guide groove 25 is fitted so as to be tiltable,
The operation piece 19 projects substantially horizontally, and the body portion 21 is positioned parallel to the inner wall of the pin body 7. From this locked state, as shown in FIG. 5A, the operation piece 19 is raised upward to tilt the main body portion 21 so that its upper end side is away from the inner wall of the pin main body 7, and the lock member 2
By changing the attitude of 0 to the unlocked attitude, the upper end side of the support rod 12, that is, the engaging projection 9 side tilts against the urging force of the spring 13 about the connecting projection 11 at the lower end, As a result, the engagement projection 9 is retracted toward the inside of the pin body 7 and is in the released state as shown in FIG. 5 (A). At this time, the locking stepped portion 26 of the lock member 20 is locked at the corner between the upper end of the laterally elongated groove portion 23 of the T-shaped guide groove 25 and the inner wall of the pin body 7, and the inner surface side upper end portion of the body portion 21 is The lock member 20 is pressed against the support rod 12, and in this state, the lock member 20 is held in the unlocked posture.
【００１８】上記のように係合突起９がばね付勢力に抗
して後退した解放状態にあっても、この係合突起９の先
端部は図５の（Ａ）に示すようにピン本体７の外側面か
ら若干突出した状態となっている。しかして、このよう
な状態から係合突起９の先端部を押圧して係合突起９を
更にピン本体７内に後退させることによって、ロック部
材２０は、支持杆１２との押接状態から解放されて、図
５の（Ｂ）に示すように自重によって非ロック姿勢から
ロック姿勢へと傾転するようになっている。Even when the engaging projection 9 is in the released state in which it is retracted against the spring biasing force as described above, the tip portion of the engaging projection 9 is the pin body 7 as shown in FIG. 5 (A). Is slightly protruding from the outer surface of the. Then, by pushing the tip end portion of the engaging protrusion 9 from such a state to further retract the engaging protrusion 9 into the pin body 7, the lock member 20 is released from the pressed state with the support rod 12. As a result, as shown in FIG. 5 (B), it is tilted from its non-locked posture to its locked posture by its own weight.
【００１９】上述のように構成される足場建枠用連結ピ
ン６の使用に際しては、先ず、ピン孔１４ｂから外部に
突出した連結用突起１１を板ばね１３の付勢力に抗して
ピン本体７内へ退入させた状態で、ピン本体７のピン下
部７ｂを下方側足場建枠ｂの縦パイプ１の上端部に差し
込み、連結用突起１１を縦パイプ１の連結孔１０に係合
させて図３に示すような状態とする。これによって、ピ
ン本体７は、下方側足場建枠ｂの縦パイプ１の上端部に
取り付けられ、以後は足場建枠の不使用時でも取り外す
必要はない。このとき、ロック部材２０はロック姿勢に
あって、係合突起９は板ばね１３の付勢力によりピン本
体７の外部に突出したロック位置に保持されている。In using the scaffolding frame connecting pin 6 constructed as described above, first, the connecting protrusion 11 protruding outward from the pin hole 14b resists the biasing force of the leaf spring 13 and the pin body 7 is pushed. In the state of being retracted inward, the pin lower portion 7b of the pin body 7 is inserted into the upper end portion of the vertical pipe 1 of the lower scaffolding building frame b, and the connecting projection 11 is engaged with the connecting hole 10 of the vertical pipe 1. The state is as shown in FIG. Thereby, the pin body 7 is attached to the upper end of the vertical pipe 1 of the lower scaffolding building frame b, and thereafter, it is not necessary to remove it even when the scaffolding building frame is not used. At this time, the lock member 20 is in the locked posture, and the engagement protrusion 9 is held at the lock position protruding outside the pin body 7 by the biasing force of the leaf spring 13.
【００２０】次に、上方側足場建枠ａの縦パイプ１を、
下方側足場建枠ｂに取り付けたピン本体のピン上部７ａ
に差し込むと、その差し込み途上で、係合突起９の滑り
面１７に縦パイプ１の下端部が当接し、その当接力によ
り負荷される退入力によって、係合突起９は図４の
（Ａ）に示すようにピン本体７の内部側へ後退して解放
状態となる。このとき、ロック部材２０は、同図のよう
なロック姿勢にある。Next, the vertical pipe 1 of the upper side scaffolding frame a is
Pin upper part 7a of the pin body attached to the lower scaffold building frame b
4A, the lower end of the vertical pipe 1 comes into contact with the sliding surface 17 of the engaging projection 9 during the insertion, and the engaging projection 9 is moved by the retraction force applied by the abutting force. As shown in FIG. 5, the pin body 7 is retracted to the released state. At this time, the lock member 20 is in the lock posture as shown in FIG.
【００２１】そして、係合突起９の先端部が、上方側足
場建枠ａの縦パイプ１内側面に当接した状態で更に下動
し、図４の（Ｂ）に示すように縦パイプ１の下端がピン
上部７ａの外周段部８ａに当接すると、この縦パイプ１
の係合孔５に係合突起９が対向位置することになって、
係合突起９は板ばね１３の付勢力により突出して縦パイ
プ１の係合孔５に係合し、これによって上方側足場建枠
ａと下方側足場建枠ｂとが互いに連結されることにな
る。Then, the tip end of the engaging projection 9 is further moved downward in a state of being in contact with the inner surface of the vertical pipe 1 of the upper scaffolding building frame a, and as shown in FIG. When the lower end of the vertical pipe comes into contact with the outer peripheral stepped portion 8a of the pin upper portion 7a, the vertical pipe 1
The engaging projections 9 are located opposite to the engaging holes 5 of
The engagement protrusion 9 projects by the biasing force of the leaf spring 13 and engages with the engagement hole 5 of the vertical pipe 1, whereby the upper side scaffolding frame a and the lower side scaffolding frame b are connected to each other. Become.
【００２２】上方側足場建枠ａを下方側足場建枠ｂから
取り外す場合には、図４（Ｂ）のようにロック姿勢にあ
るロック部材２０の操作片１９を図５の（Ａ）に示すよ
うに引き起こして、このロック部材２０をロック姿勢か
ら非ロック姿勢へと傾転させることにより、係合突起９
が板ばね１３の付勢力に抗してピン本体７内へ後退し、
解放されるから、この状態で上方側足場建枠ａの縦パイ
プ１を下方側足場建枠ｂの縦パイプ１に取り付けられた
ピン本体７から抜き出せばよい。When removing the upper side scaffolding frame a from the lower side scaffolding frame b, the operation piece 19 of the lock member 20 in the locked posture as shown in FIG. 4B is shown in FIG. 5A. Thus causing the locking member 20 to tilt from the locked posture to the unlocked posture, the engagement projection 9
Resists the biasing force of the leaf spring 13 and retracts into the pin body 7,
Since it is released, in this state, the vertical pipe 1 of the upper scaffold building frame a may be pulled out from the pin body 7 attached to the vertical pipe 1 of the lower scaffold building frame b.
【００２３】この際、図５の（Ａ）に示すように係合突
起９の先端部がピン本体７外側面から若干突出している
が、この係合突起９の下面側先端部には上方に向かって
傾斜する副滑り面１８が形成されているから、縦パイプ
１の抜き取り時にこの縦パイプ１の係合孔５の下端縁部
が副滑り面１８に当接し、それによって係合突起９は板
ばね１３の付勢力に抗してピン本体７内部へ更に後退
し、縦パイプ１の抜き取りに支障を来すことがない。At this time, as shown in FIG. 5 (A), the tip of the engaging projection 9 slightly projects from the outer surface of the pin body 7. Since the sub-sliding surface 18 that is inclined toward the side is formed, the lower end edge of the engaging hole 5 of the vertical pipe 1 abuts the sub-sliding surface 18 when the vertical pipe 1 is pulled out, so that the engaging protrusion 9 It resists the biasing force of the leaf spring 13 and further retracts into the inside of the pin body 7, so that the vertical pipe 1 can be pulled out without any trouble.
【００２４】また、上記のように係合突起９がピン本体
７内部へ更に後退する時に、ロック部材２０は、支持杆
１２との押接状態から解放されて、図５の（Ｂ）に示す
ように自重により非ロック姿勢からロック姿勢へと傾転
して、自動的に元の状態（初期状態）に復帰する。この
ため、次回使用時に、元の状態に戻してやる必要がな
く、ロックし忘れることがない。When the engaging projection 9 is further retracted into the pin body 7 as described above, the lock member 20 is released from the pressed state with the support rod 12 and is shown in FIG. 5 (B). As described above, the vehicle tilts from the non-locked posture to the locked posture by its own weight, and automatically returns to the original state (initial state). For this reason, it is not necessary to return to the original state the next time it is used, and never forget to lock it.
【００２５】また、上方側足場建枠ａの縦パイプ１を下
方側足場建枠ｂの縦パイプ１に取り付けられたピン本体
７から抜き取る際に、上方側足場建枠ａの縦パイプ１が
ピン本体７に対し真に平行状態で差し込まれている時は
問題ないのであるが、縦パイプ１がピン本体７に対し傾
いた状態で差し込まれている場合には、普通の構造であ
れば、操作片１９の引起し操作が困難となって、抜き取
りができなくなることがある。斯かる場合には、既に説
明したように、連結用突起１１が支持杆１２に対し垂直
横向き姿勢に保持された状態で支持杆１２長手方向前後
に２ｍｍ程度スライドできるようになっていることか
ら、そのような場合でも操作片１９の引起し操作を容易
に行えて、縦パイプ１の抜き取りが可能となる。When the vertical pipe 1 of the upper scaffolding frame a is pulled out from the pin body 7 attached to the vertical pipe 1 of the lower scaffolding frame b, the vertical pipe 1 of the upper scaffolding frame a is pinned. There is no problem when the vertical pipe 1 is inserted in a state of being truly parallel to the main body 7, but when the vertical pipe 1 is inserted in a state of being inclined with respect to the pin main body 7, it is possible to operate with a normal structure. The piece 19 may be difficult to pull up and may not be able to be pulled out. In such a case, as described above, since the connecting projection 11 can be slid about 2 mm back and forth in the longitudinal direction of the support rod 12 while being held in the vertical lateral orientation with respect to the support rod 12. Even in such a case, the operation piece 19 can be easily pulled up and the vertical pipe 1 can be pulled out.
【００２６】即ち、縦パイプ１がピン本体７に対し傾い
た状態で差し込まれている時には、縦パイプ１の係合孔
５が係合突起９に対し食い付いた状態となって、支持杆
１２がピン本体７と一体化しているような状態にあるか
ら、操作片１９によるロック部材２０の傾転操作ができ
なくなる。然るに、上記のように場合には、連結用突起
１１が支持杆１２に対し支持杆１２長手方向前後に２ｍ
ｍ程度スライドできるようになっていることにより、連
結用突起１１が支持杆１２長手方向前後に適宜にスライ
ドして、縦パイプ１の係合孔５が係合突起９に食い付く
ようなことがなく、そのため操作片１９の引起し操作が
容易に行え、係合突起９をピン本体７内部へ後退させて
縦パイプ１の抜き取りを行うことができる。That is, when the vertical pipe 1 is inserted into the pin body 7 in an inclined state, the engaging hole 5 of the vertical pipe 1 bites into the engaging projection 9 and the supporting rod 12 is inserted. Is in a state of being integrated with the pin body 7, the tilting operation of the lock member 20 by the operation piece 19 cannot be performed. However, in the case as described above, the connecting projection 11 is 2 m behind the support rod 12 in the longitudinal direction of the support rod 12.
By being able to slide about m, the connecting projection 11 may slide appropriately back and forth in the longitudinal direction of the support rod 12, and the engaging hole 5 of the vertical pipe 1 may bite into the engaging projection 9. Therefore, the operation piece 19 can be easily pulled up, and the engagement projection 9 can be retracted into the pin body 7 to extract the vertical pipe 1.
【００２７】以上説明したような足場建枠用連結ピン６
によれば、上方側足場建枠ａの縦パイプ１を下方側足場
建枠ｂに取り付けたピン本体のピン上部７ａに差し込む
だけで、係合突起９がピン本体７の内部側へ後退して解
放状態となった後、板ばね１３の付勢力により突出して
縦パイプ１の係合孔５に係合し、これによって上方側足
場建枠ａが下方側足場建枠ｂに自動的に連結されること
になる。Connecting pin 6 for scaffolding frame as described above
According to this, the engagement projection 9 is retracted to the inside of the pin body 7 simply by inserting the vertical pipe 1 of the upper side scaffolding frame a into the pin upper portion 7a of the pin body attached to the lower side scaffolding frame b. After being in the released state, it projects by the biasing force of the leaf spring 13 and engages with the engagement hole 5 of the vertical pipe 1, whereby the upper side scaffolding frame a is automatically connected to the lower side scaffolding frame b. Will be.
【００２８】また、上方側足場建枠ａを下方側足場建枠
ｂから取り外す場合には、係合突起９のピン本体７内部
への後退によって、ロック部材２０が支持杆１２との押
接状態から解放されて、自重により非ロック姿勢からロ
ック姿勢へと傾転し、自動的に元の状態（初期状態）に
復帰するため、次回使用時に、元の状態に戻してやる必
要がなく、ロックし忘れるようなことがない。When the upper side scaffolding frame a is removed from the lower side scaffolding frame b, the locking member 20 is pressed against the support rod 12 by retracting the engaging projection 9 into the pin body 7. It is released from, and tilts from the non-locked posture to the locked posture by its own weight, and automatically returns to the original state (initial state), so there is no need to return to the original state the next time you use it There is nothing to forget.
【００２９】また、上方側足場建枠ａの縦パイプ１を下
方側足場建枠ｂの縦パイプ１に取り付けられたピン本体
７から抜き取る時に、上方側足場建枠ａの縦パイプ１が
ピン本体７に対し傾いた状態で差し込まれている場合に
は、操作片１９の引起し操作が困難となって、抜き取り
ができなくなることがあるが、連結用突起１１が支持杆
１２に対し垂直横向き姿勢に保持された状態で支持杆１
２長手方向前後に若干量スライドできるようになってい
るから、斯かる場合でも操作片１９の引起し操作が可能
で、縦パイプ１の抜き取りを容易に行うことができる。When the vertical pipe 1 of the upper scaffolding frame a is pulled out from the pin main body 7 attached to the vertical pipe 1 of the lower scaffolding frame b, the vertical pipe 1 of the upper scaffolding frame a is pin body. When it is inserted in a state inclined with respect to 7, it may be difficult to pull up the operation piece 19 and it may become impossible to extract it, but the connecting projection 11 is in a vertical horizontal direction with respect to the support rod 12. Support rod 1 while being held by
(2) Since it can be slid slightly back and forth in the longitudinal direction, even in such a case, the operation piece 19 can be pulled up and the vertical pipe 1 can be easily pulled out.
【００３０】[0030]
【発明の効果】請求項１に係る発明の足場建枠用連結ピ
ンによると、操作片によってロック部材をロック姿勢に
しておけば、係合突起をピン本体の外部に突出するロッ
ク状態に保持でき、連結ピンの使用中に、物や作業者の
足が係合突起の先端突出部に当たっても、係合突起は解
放状態とならず、作業上の安全を確保できる。また、上
方側足場建枠の縦パイプを下方側足場建枠に取り付けた
ピン本体のピン上部に差し込むだけで、係合突起がピン
本体の内部側へ後退して解放状態となった後、ばねの付
勢力により突出して縦パイプの係合孔に係合し、これに
よって上方側足場建枠を下方側足場建枠に自動的に連結
させることができる。According to the scaffolding frame connecting pin of the invention of claim 1, if the locking member is set in the locked posture by the operation piece, the engaging protrusion can be held in a locked state protruding to the outside of the pin body. Even if an object or a worker's foot hits the tip projection of the engaging projection while the connecting pin is in use, the engaging projection does not become in the released state, and the safety of work can be secured. Also, by simply inserting the vertical pipe of the upper scaffolding frame into the upper part of the pin of the pin body attached to the lower scaffolding frame, the engaging projection retracts to the inside of the pin body and is released, and the spring is released. It is projected by the biasing force of and engages with the engagement hole of the vertical pipe, whereby the upper side scaffolding frame can be automatically connected to the lower side scaffolding frame.
【００３１】請求項２に記載のように、支持杆下端部の
連結用突起を支持杆に対しその長手方向前後に若干量ス
ライドできるように取り付けることにより、上方側足場
建枠の縦パイプを下方側足場建枠の縦パイプに取り付け
られたピン本体から抜き取る際に、上方側足場建枠の縦
パイプがピン本体に対し傾いた状態で差し込まれていて
も、操作片の引起し操作が可能となって、縦パイプの抜
き取りを容易に行うことができる。According to a second aspect of the present invention, the connecting pipe at the lower end of the supporting rod is attached to the supporting rod so as to be slidable in the longitudinal direction of the supporting rod so that the vertical pipe of the upper side scaffolding frame is lowered. When pulling out from the pin body attached to the vertical pipe of the side scaffolding frame, even if the vertical pipe of the upper side scaffolding frame is inserted in a state inclined with respect to the pin body, it is possible to raise the operation piece. As a result, the vertical pipe can be easily pulled out.
【００３２】請求項３に記載のよれば、係合突起の先端
部は、ロック部材が非ロック姿勢にあって係合突起がば
ね付勢力に抗して後退している時でも、ピン本体の外側
面から若干突出した状態にあって、係合突起の先端部が
押圧されて係合突起が更にピン本体内に後退されること
により、ロック部材が支持杆との押接状態から解放され
て、自重によりロック姿勢に傾転するようになっている
から、上方側足場建枠を下方側足場建枠から取り外す場
合には、係合突起のピン本体内部への後退によって、ロ
ック部材が支持杆との押接状態から解放されて、自重に
より非ロック姿勢からロック姿勢へと傾転し、自動的に
元の状態（初期状態）に復帰するため、次回使用時に、
元の状態に戻してやる必要がなく、ロックし忘れるよう
なことがない。According to the third aspect of the present invention, the tip portion of the engaging projection is provided with the pin body of the pin body even when the locking member is in the unlocked posture and the engaging projection is retracted against the spring biasing force. When the tip of the engaging projection is pressed and the engaging projection is further retracted into the pin body in a state of slightly protruding from the outer side surface, the lock member is released from the pressed state with the support rod. , The lock member is tilted to the lock posture by its own weight, and therefore, when the upper side scaffolding frame is removed from the lower side scaffolding frame, the locking member is supported by retracting the engaging projection into the pin body. It is released from the pressing state with and is tilted from the non-locked posture to the locked posture by its own weight, and automatically returns to the original state (initial state), so the next time you use it,
There is no need to restore it to its original state, and you will never forget to lock it.
【図１】 上方側の足場建枠と下方側の足場建枠との連
結前の状態を示す斜視図である。FIG. 1 is a perspective view showing a state before the upper scaffolding frame and the lower scaffolding frame are connected.
【図２】 連結ピンを示す外観斜視図で、（Ａ）は、ロ
ック部材がロック姿勢にあって、係合突起がピン本体の
外部に突出している状態を示し、（Ｂ）は、ロック部材
が非ロック姿勢にあって、係合突起がピン本体内部へ後
退している状態を示す。2A and 2B are external perspective views showing a connecting pin, FIG. 2A shows a state in which a lock member is in a lock posture, and an engaging protrusion projects to the outside of a pin body; FIG. 2B shows a lock member. Shows a state in which the engaging protrusion is retracted into the pin body in the unlocked posture.
【図３】 （Ａ）は図２の（Ａ）に示される状態にある
連結ピンの正面図、（Ｂ）はその縦断面図である。3A is a front view of the connecting pin in the state shown in FIG. 2A, and FIG. 3B is a longitudinal sectional view thereof.
【図４】 （Ａ）は上方側足場建枠の縦パイプをピン本
体に差し込んでいる途中の状態を示す連結ピンの縦断面
図、（Ｂ）は同縦パイプをピン本体に差し込み終えた状
態を示す連結ピンの縦断面図である。FIG. 4A is a vertical cross-sectional view of the connecting pin showing a state in which the vertical pipe of the upper scaffolding frame is being inserted into the pin body, and FIG. 4B is a state in which the vertical pipe is completely inserted into the pin body. FIG. 6 is a vertical sectional view of a connecting pin showing
【図５】 （Ａ）は上方側足場建枠の縦パイプをピン本
体から抜き出すに際し、ロック部材をロック姿勢から非
ロック姿勢へ傾転している状態を示す縦断面図、（Ｂ）
は縦パイプをピン本体から抜き出す際に、ロック部材が
元の状態に復帰する状態を示す縦断面図である。FIG. 5 (A) is a vertical cross-sectional view showing a state in which the lock member is tilted from the locked position to the unlocked position when the vertical pipe of the upper scaffolding building frame is pulled out from the pin body;
FIG. 6 is a vertical cross-sectional view showing a state in which the lock member returns to the original state when the vertical pipe is pulled out from the pin body.
【図６】 （Ａ）はピン本体の一部を示すもので、Ｔ字
状のガイド溝を示す斜視図、（Ｂ）は支持杆の両端部に
突設された係合突起及び連結用突起と、支持杆に係合す
るロック部材とを示す斜視図である。FIG. 6A is a perspective view showing a part of the pin body, showing a T-shaped guide groove, and FIG. 6B is an engaging projection and a connecting projection projecting from both ends of the supporting rod. FIG. 6 is a perspective view showing a lock member that engages with a support rod.
【図７】 （Ａ）は支持杆と、これに取り付けられた係
合突起、連結用突起及び板ばねを支持杆の正面側から見
た正面図、（Ｂ）はその側面図である。FIG. 7A is a front view of a support rod, and engagement protrusions, connection protrusions, and leaf springs attached to the support rod as seen from the front side of the support rod, and FIG. 7B is a side view thereof.
ａ 上方側足場建枠 ｂ 下方側足場建枠 １ 縦パイプ ５ 係合孔 ６ 連結ピン ７ ピン本体 ９ 係合突起 １１ 連結用突起 １２ 支持杆 １３ 板ばね １７ 滑り面 １８ 副滑り面 １９ 操作片 ２０ ロック部材 a Upper scaffolding frame b Lower scaffolding frame 1 vertical pipe 5 engagement holes 6 connecting pins 7-pin body 9 Engagement protrusion 11 Connecting projection 12 Support rod 13 leaf spring 17 sliding surface 18 Secondary sliding surface 19 Operation piece 20 Lock member
Claims (3)
壁に沿って軸方向に延びる支持杆と、支持杆の上端部及
び下端部に設けられて夫々ピン本体の外部に突出する係
合突起及び連結用突起と、支持杆を介して前記両突起を
ピン本体の外部に突出させるように付勢するばねとを設
け、ピン本体には、外部に操作片を突出したロック部材
を、支持杆との間で、ピン本体の内壁に沿って平行に位
置するロック姿勢と、ロック姿勢から部材上端部側がピ
ン本体内壁から離れるように傾転した非ロック姿勢とに
亘って姿勢変更可能に設け、前記操作片を引き起こして
ロック部材をロック姿勢から非ロック姿勢に傾転させる
ことにより、係合突起がばね付勢力に抗してピン本体内
部へ後退するようにした足場建枠用連結ピン。1. A support rod extending axially along the inner wall of the pin body inside the hollow pin body, and engagements provided at the upper and lower ends of the support rod and projecting to the outside of the pin body, respectively. Provided with a protrusion and a connecting protrusion, and a spring for urging the protrusions so as to protrude to the outside of the pin body through a support rod, and the pin body supports a lock member protruding the operation piece to the outside. Provided so that the posture can be changed between the rod and the rod, which is parallel to the inner wall of the pin body, and in a non-locked posture in which the upper end of the member tilts away from the inner wall of the pin body from the lock posture. A scaffolding frame connecting pin in which the engaging projection is retracted into the pin body against the spring biasing force by inclining the lock member from the locked posture to the unlocked posture by inducing the operation piece.
対しその長手方向前後に若干量スライドできるように取
り付けてなる請求項１に記載の足場建枠用連結ピン。2. The scaffolding frame connecting pin according to claim 1, wherein the connecting projection at the lower end portion of the supporting rod is attached to the supporting rod so as to be able to slide slightly forward and backward in the longitudinal direction thereof.
ック姿勢にあって係合突起がばね付勢力に抗して後退し
ている時でも、ピン本体の外側面から若干突出した状態
にあり、しかして係合突起の先端部が押圧されて係合突
起が更にピン本体内に後退されることにより、ロック部
材は、支持杆との押接状態から解放されて、その自重に
よりロック姿勢に傾転するようになっている請求項１又
は２に記載の足場建枠用連結ピン。3. The tip of the engaging projection is in a state of slightly protruding from the outer surface of the pin body even when the locking member is in the unlocked posture and the engaging projection is retracted against the spring biasing force. When the tip of the engaging projection is pressed and the engaging projection is further retracted into the pin body, the lock member is released from the pressed state with the support rod and locked by its own weight. The scaffolding frame connecting pin according to claim 1 or 2, wherein the scaffolding frame connecting pin is tilted to a posture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13664599A JP3443035B2 (en) | 1999-05-18 | 1999-05-18 | Connecting pins for scaffolding frames |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13664599A JP3443035B2 (en) | 1999-05-18 | 1999-05-18 | Connecting pins for scaffolding frames |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000328779A JP2000328779A (en) | 2000-11-28 |
| JP3443035B2 true JP3443035B2 (en) | 2003-09-02 |
Family
ID=15180171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13664599A Expired - Fee Related JP3443035B2 (en) | 1999-05-18 | 1999-05-18 | Connecting pins for scaffolding frames |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3443035B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2504363A1 (en) * | 2004-07-27 | 2006-01-27 | Daniel Grenon | Adjustable and transportable scaffolding |
| EP1820920B1 (en) * | 2006-01-24 | 2017-10-18 | Combisafe International Ab | Safety post |
| JP5328143B2 (en) * | 2007-06-18 | 2013-10-30 | ジーオーピー株式会社 | Portable worktable |
| JP5878898B2 (en) * | 2013-08-08 | 2016-03-08 | 信和株式会社 | Scaffolding coupling device |
| JP7460987B2 (en) | 2020-10-27 | 2024-04-03 | 日本電信電話株式会社 | Pipe joining equipment and pipe joining equipment assembly |
-
1999
- 1999-05-18 JP JP13664599A patent/JP3443035B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000328779A (en) | 2000-11-28 |
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