JPH0716722Y2 - Embedded plug for rail fastening - Google Patents
Embedded plug for rail fasteningInfo
- Publication number
- JPH0716722Y2 JPH0716722Y2 JP83693U JP83693U JPH0716722Y2 JP H0716722 Y2 JPH0716722 Y2 JP H0716722Y2 JP 83693 U JP83693 U JP 83693U JP 83693 U JP83693 U JP 83693U JP H0716722 Y2 JPH0716722 Y2 JP H0716722Y2
- Authority
- JP
- Japan
- Prior art keywords
- rail fastening
- peripheral surface
- main body
- cylindrical main
- plug
- 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 - Lifetime
Links
Landscapes
- Moulds, Cores, Or Mandrels (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本考案は軌条締結用埋込栓に係る
ものである。[Industrial application] The present invention relates to an embedded plug for fastening a rail.
【０００２】[0002]
【従来の技術】従来この種の埋込栓は熱可塑性合成樹脂
製円筒主筒の内周面に軌条締結ボルトの螺着用雌ねじ部
が設けられ、外周面に螺旋状の突起が突設されていて、
コンクリート枕木に埋設され、軌条締結ボルトが前記雌
ねじ部に螺着、緊締されるようになっている。2. Description of the Related Art Conventionally, a plug of this type has a cylindrical main cylinder made of a thermoplastic synthetic resin, on which an internal thread portion for screwing a rail fastening bolt is provided on the inner peripheral surface, and a spiral projection is projected on the outer peripheral surface. hand,
It is embedded in a concrete sleeper, and a rail fastening bolt is screwed and tightened to the female screw portion.
【０００３】[0003]
【考案が解決しようとする課題】前記埋込栓の成形に際
しては、上下の外側型枠間に埋込栓を成形し、同埋込栓
に挿入された雌ねじ部成形用ボルトを回転して脱型する
とき、前記上下一双の外側型枠によって製品が押さえら
れているので、製品は回転することなく、前記成形用ボ
ルトだけが脱型でき、埋込栓の円筒状主体に軌条締結ボ
ルトの螺着用雌ねじ部が成形される。When molding the embedding plug, the embedding plug is formed between the upper and lower outer molds, and the female screw portion forming bolt inserted in the embedding plug is rotated to remove it. Since the product is pressed by the upper and lower outer molds when molding, only the molding bolt can be removed from the mold without rotating the product, and the cylindrical main body of the embedding plug can be screwed with the rail fastening bolt. The wearing female screw portion is molded.
【０００４】最近、前記埋込栓の自動成形装置が使用さ
れるようになって、雌ねじ部成形用ボルトと埋込栓の同
筒状主体と共廻りし、脱型が困難になり、また脱型後の
製品の型離れが円滑に行なわれないという問題点があっ
た。本考案はこのような従来技術の有する問題点に鑑み
て提案されたもので、その目的とする処は、埋込栓の成
型に際してその脱型時に、埋込栓の雌ねじ部成形用ボル
トの空転が防止され、脱型後の製品の脱型が容易に行わ
れる軌条締結用ボルトを提供する点にある。Recently, the automatic molding apparatus for the embedding plug has come into use, and it becomes difficult to remove the mold because the internal thread portion forming bolt and the same cylindrical main body of the embedding plug rotate together. There is a problem that the product after the mold is not released from the mold smoothly. The present invention has been proposed in view of the above problems of the prior art. The purpose of the present invention is to idle the internal thread forming bolt of the embedding plug when the embedding plug is molded and released from the mold. The present invention is intended to provide a rail fastening bolt that prevents the occurrence of the above-mentioned problems and facilitates the demolding of the product after the demolding.
【０００５】[0005]
【課題を解決するための手段】前記の目的を達成するた
め、軌条締結ボルトの螺着用雌ねじ孔を有する円筒状主
体の外周面に螺旋状突起が突設された熱可塑性樹脂製軌
条締結用埋込栓において、前記円筒状主体の上端部の外
周面に切欠き部を設けるとともに、同切欠き部のない部
分には面取り部を設けて構成されている。In order to achieve the above object, a thermoplastic resin rail fastening pad having a spiral protrusion protruding from the outer peripheral surface of a cylindrical main body having a female threaded hole for threading of a rail fastening bolt. In the plug, a notch is provided on the outer peripheral surface of the upper end of the cylindrical main body, and a chamfer is provided at a portion without the notch.
【０００６】[0006]
【作用】本考案に係る軌条締結用埋込栓は前記したよう
に、円筒状主体における上端部の外周面に切欠きが設け
られているので、埋込栓の脱型時における円筒状主体と
雌ねじ部成形用ボルトとの共廻りが防止され、脱型が容
易に行なわれる。また前記円筒状主体における切欠きの
施されていない部分には面取りが施されているので、脱
型後の製品の型離れが容易に行なわれる。As described above, the rail fastening fastening plug according to the present invention is provided with a notch on the outer peripheral surface of the upper end of the cylindrical body, so that Co-rotation with the female thread forming bolt is prevented, and the mold can be easily removed. Further, since the notched portion of the cylindrical main body is chamfered, the product can be easily released from the mold after demolding.
【０００７】[0007]
【実施例】以下本考案を図示の実施例について説明す
る。Ａは熱可塑性樹脂製の軌条締結用埋込栓で、円筒状
主体１の内周面には軌条締結用ボルトの螺着用雌ねじ２
が設けられ、外周面には螺旋状突起３が突設されてい
る。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the illustrated embodiments. Reference numeral A denotes a rail-fastening embedded plug made of a thermoplastic resin, and an internal thread 2 for mounting a rail-fastening bolt is provided on the inner peripheral surface of the cylindrical main body 1.
Is provided, and a spiral projection 3 is provided on the outer peripheral surface.
【０００８】前記円筒状主体１の上端外周面に切欠き４
が設けられ、同切欠き４の設けられない部分には面取り
部５が設けられている。図示の実施例は前記したように
構成されているので、前記円筒状主体１の上端外周面に
設けられた切欠き４によって、埋込栓の雌ねじ成型用ボ
ルトを回転脱型時における円筒状主体１の共廻りが防止
され前記成型用ボルトの脱型が容易に行なわれる。A notch 4 is formed on the outer peripheral surface of the upper end of the cylindrical main body 1.
Is provided, and a chamfered portion 5 is provided in a portion where the notch 4 is not provided. Since the illustrated embodiment is configured as described above, the notch 4 provided on the outer peripheral surface of the upper end of the cylindrical main body 1 causes the internal thread molding bolt of the embedding plug to have a cylindrical main body at the time of rotational demolding. The co-rotation of No. 1 is prevented, and the molding bolt is easily removed from the mold.
【０００９】また前記円筒状主体１における切欠き部４
のない部分に設けられた面取り部５によって、脱型後の
製品の型離れが円滑に行なわれる。Further, the notch portion 4 in the cylindrical main body 1
The chamfered portion 5 provided in the non-existing portion facilitates the mold release of the product after the mold release.
【００１０】[0010]
【考案の効果】本考案に係る軌条締結用埋込栓は前記し
たように、埋込栓の円筒状主体の上端部外周面に切欠き
部が設けられたことによって、埋込栓の軌条締結ボルト
の螺着用ボルトの脱型が容易に行なわれ、また、円筒状
主体の上端部外周面における前記切欠き部のない部分に
設けられた面取部によって脱型後の製品の脱離れが容易
に行なわれる。As described above, the rail fastening embedding plug according to the present invention is provided with a notch on the outer peripheral surface of the upper end portion of the cylindrical main body of the embedding plug, so that the rail fastening of the embedding plug is achieved. The bolt can be easily removed from the bolt, and the chamfered part provided on the outer peripheral surface of the upper end of the cylindrical main body where there is no notch makes it easy to remove the product after removal from the mold. To be done.
【図１】本考案に係る軌条締結用埋込栓の一実施例を示
す左半部縦断正面図である。FIG. 1 is a vertical sectional front view of a left half portion showing an embodiment of an embedding plug for rail fastening according to the present invention.
【図２】図１の側面図である。FIG. 2 is a side view of FIG.
【図３】図１の平面図である。FIG. 3 is a plan view of FIG.
１ 円筒状主体 ２ 雌ねじ ３ 螺旋状突起 ４ 切欠き ５ 面取り部 1 Cylindrical main body 2 Female screw 3 Spiral protrusion 4 Notch 5 Chamfer
Claims (1)
る円筒状主体の外周面に螺旋状突起が突設された熱可塑
性樹脂製軌条締結用埋込栓において、前記円筒状主体の
上端部の外周面に切欠き部を設けるとともに、同切欠き
部のない部分には面取り部を設けてなることを特徴とす
る軌条締結用埋込栓。1. A thermoplastic resin rail fastening embedding plug having a spiral projection on an outer peripheral surface of a cylindrical main body having a female threaded hole for threading a rail fastening bolt. An embedding plug for rail fastening, characterized in that a cutout portion is provided on the outer peripheral surface, and a chamfered portion is provided at a portion without the cutout portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP83693U JPH0716722Y2 (en) | 1993-01-18 | 1993-01-18 | Embedded plug for rail fastening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP83693U JPH0716722Y2 (en) | 1993-01-18 | 1993-01-18 | Embedded plug for rail fastening |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0657901U JPH0657901U (en) | 1994-08-12 |
| JPH0716722Y2 true JPH0716722Y2 (en) | 1995-04-19 |
Family
ID=11484714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP83693U Expired - Lifetime JPH0716722Y2 (en) | 1993-01-18 | 1993-01-18 | Embedded plug for rail fastening |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0716722Y2 (en) |
-
1993
- 1993-01-18 JP JP83693U patent/JPH0716722Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0657901U (en) | 1994-08-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R323531 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| EXPY | Cancellation because of completion of term |