JPH028907U - - Google Patents
Info
- Publication number
- JPH028907U JPH028907U JP8653088U JP8653088U JPH028907U JP H028907 U JPH028907 U JP H028907U JP 8653088 U JP8653088 U JP 8653088U JP 8653088 U JP8653088 U JP 8653088U JP H028907 U JPH028907 U JP H028907U
- Authority
- JP
- Japan
- Prior art keywords
- core
- driving nut
- formwork
- joint
- bell crank
- 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.)
- Granted
Links
- 230000008602 contraction Effects 0.000 claims description 5
- 238000009415 formwork Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims 3
Landscapes
- Sewage (AREA)
- Moulds, Cores, Or Mandrels (AREA)
Description
第１図は、本考案の型枠の概略を示す斜視図。
第２図は、本考案の一実施例の中子伸縮機構の一
部切欠斜視図。第３図ａ・ｂは、本考案の一実施
例の中子伸縮機構の作動説明図。第４図は、本考
案の他の実施例の概略を示す斜視図。第５図は、
他の実施例要部の中子伸縮機構を示す一部切欠斜
視図。第６図ａ・ｂは、他の実施例の中子の作動
説明図。第７図は、暗渠ブロツク。第８図ａ〜ｄ
は、従来技術の型枠の動作を示す斜視図。
１０……台枠、２０……妻板、２１……片方の
妻板、３０……側板、４０……上側中子、４１…
…下側中子、４５……Ｃ型断面の中子、５０……
中子支持梁、６０……スクリユー、８０，８２…
…駆動用ナツト、９０……長いリンク、９５……
短いリンク、９０，９２……リンク、９９……ピ
ン、１００……カム溝板、１１０……交差ジヨイ
ント、１２０……ベルクランク、Ａ……暗渠ブロ
ツク、Ｂ……中空孔。
FIG. 1 is a perspective view schematically showing the formwork of the present invention.
FIG. 2 is a partially cutaway perspective view of a core expansion/contraction mechanism according to an embodiment of the present invention. FIGS. 3a and 3b are explanatory views of the operation of the core expansion and contraction mechanism according to an embodiment of the present invention. FIG. 4 is a perspective view schematically showing another embodiment of the present invention. Figure 5 shows
FIG. 7 is a partially cutaway perspective view showing a core expansion/contraction mechanism of a main part of another embodiment. FIGS. 6a and 6b are explanatory views of the operation of the core of another embodiment. Figure 7 shows the culvert block. Figure 8 a-d
FIG. 2 is a perspective view showing the operation of a conventional formwork. 10... Underframe, 20... End board, 21... One end board, 30... Side plate, 40... Upper core, 41...
...Lower core, 45...C-shaped cross section core, 50...
Core support beam, 60... Screw, 80, 82...
...Drive nut, 90...Long link, 95...
Short link, 90, 92...Link, 99...Pin, 100...Cam groove plate, 110...Cross joint, 120...Bell crank, A...Drain block, B...Hollow hole.
Claims (1)
を開閉自在に蝶着した暗渠ブロツク製造用型枠に
おいて、片方の前記妻板内面に中子に挿通可能な
中子支持梁を突設し、中子を上下に分割した湾曲
断面の上側中子・下側中子とし、左ねじ・右ねじ
を螺刻したスクリユー軸と該スクリユー軸に左ね
じ、右ねじの各駆動用ナツトを螺合させて設け、
該各駆動用ナツト上面両端部と前記の上側中子両
縁部間を２本の長いリンクで左右対称に連結し、
該各駆動用ナツト下面両端部と前記下側中子両縁
部間を２本の短いリンクで左右対称に連結し、前
記各駆動用ナツト下面に軸線と交差するピンを設
け、前記下側中子の内側底面に該ピンと係合する
２枚のカム溝板を固着した中子伸縮機構を設けた
ことを特徴とする暗渠ブロツク製造用型枠。 (2) 中子を接合面を設けたＣ型断面とし、該中
子内面左側に設けた軸受で２組以上の左ねじ・右
ねじを螺刻したスクリユー軸を支承し、左ねじ、
右ねじの各駆動用ナツトを該スクリユー軸に螺合
させ、該各駆動用ナツトの上下部にリンクの一端
を連結し他端は各交差継手の上下に集合して連結
し、該各交差継手の突設孔部にベルクランクの左
端部を連結し、該ベルクランクの中央孔部を前記
中子の下側接合面内側の下側アームに連結し、該
ベルクランクの上端を前記中子の上側接合面内側
の上側アームに連結した中子伸縮機構を設けた、
実用新案登録請求の範囲第１項記載の暗渠ブロツ
ク製造用型枠。[Scope of Claim for Utility Model Registration] (1) In a formwork for manufacturing a culvert block in which the end plate and side plates are hinged to the periphery of the underframe to which the bottom part is attached so that they can be opened and closed, a core is inserted into the inner surface of one of the end plates. A possible core support beam is protruded, the core is divided into upper and lower parts, and the curved cross section is an upper core and a lower core. Each drive nut with right-hand thread is screwed together.
Both ends of the upper surface of each driving nut and both edges of the upper core are symmetrically connected by two long links,
Both ends of the lower surface of each driving nut and both edges of the lower core are symmetrically connected by two short links, and a pin intersecting the axis is provided on the lower surface of each driving nut. A formwork for manufacturing an underdrain block, characterized in that a core expansion/contraction mechanism is provided on the inner bottom surface of the core, in which two cam groove plates that engage with the pin are fixed. (2) The core has a C-shaped cross section with a joint surface, and a bearing provided on the left side of the inner surface of the core supports a screw shaft with two or more sets of left-handed and right-handed threads, and a left-handed thread,
Each driving nut with a right-hand thread is screwed onto the screw shaft, one end of the link is connected to the upper and lower parts of each driving nut, and the other end is connected to the upper and lower parts of each cross joint, and each cross joint is connected. The left end of the bell crank is connected to the protruding hole, the center hole of the bell crank is connected to the lower arm inside the lower joint surface of the core, and the upper end of the bell crank is connected to the lower arm of the core. A core expansion and contraction mechanism connected to the upper arm inside the upper joint surface is provided.
Formwork for manufacturing underdrain blocks as set forth in claim 1 of the utility model registration claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8653088U JPH0351129Y2 (en) | 1988-06-29 | 1988-06-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8653088U JPH0351129Y2 (en) | 1988-06-29 | 1988-06-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH028907U true JPH028907U (en) | 1990-01-19 |
| JPH0351129Y2 JPH0351129Y2 (en) | 1991-10-31 |
Family
ID=31311168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8653088U Expired JPH0351129Y2 (en) | 1988-06-29 | 1988-06-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0351129Y2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH049708U (en) * | 1990-05-16 | 1992-01-28 | ||
| JPH0653107U (en) * | 1992-12-28 | 1994-07-19 | 東北型枠販売有限会社 | Inner mold attachment / detachment device for tubular concrete secondary products |
| JPH08332619A (en) * | 1995-06-06 | 1996-12-17 | Techno Kuriito:Kk | Form for manufacturing retaining wall block |
| JP2015200082A (en) * | 2014-04-05 | 2015-11-12 | 有限会社瀬下商事 | Mold for gutter construction |
-
1988
- 1988-06-29 JP JP8653088U patent/JPH0351129Y2/ja not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH049708U (en) * | 1990-05-16 | 1992-01-28 | ||
| JPH0653107U (en) * | 1992-12-28 | 1994-07-19 | 東北型枠販売有限会社 | Inner mold attachment / detachment device for tubular concrete secondary products |
| JPH08332619A (en) * | 1995-06-06 | 1996-12-17 | Techno Kuriito:Kk | Form for manufacturing retaining wall block |
| JP2015200082A (en) * | 2014-04-05 | 2015-11-12 | 有限会社瀬下商事 | Mold for gutter construction |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0351129Y2 (en) | 1991-10-31 |
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