JPH04359605A - Pantograph provided with cylinder associated throttle valve - Google Patents
Pantograph provided with cylinder associated throttle valveInfo
- Publication number
- JPH04359605A JPH04359605A JP13448091A JP13448091A JPH04359605A JP H04359605 A JPH04359605 A JP H04359605A JP 13448091 A JP13448091 A JP 13448091A JP 13448091 A JP13448091 A JP 13448091A JP H04359605 A JPH04359605 A JP H04359605A
- Authority
- JP
- Japan
- Prior art keywords
- throttle valve
- cylinder
- pantograph
- filter
- device equipped
- 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.)
- Pending
Links
- 239000011148 porous material Substances 0.000 claims description 6
- 239000007769 metal material Substances 0.000 abstract 1
- 239000000428 dust Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
Landscapes
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】この発明は、絞り弁付シリンダを
備えるパンタグラフ装置に関し、特にその絞り弁の防塵
性に係る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pantograph device equipped with a cylinder equipped with a throttle valve, and more particularly to the dustproof properties of the throttle valve.
【０００２】0002
【従来の技術】一般にパンタグラフ装置のパンタグラフ
は上部に架線と摺動するすり板を備えた集電舟を持ち、
ばねで押し上げられ、空気式のシリンダで下降させられ
る。パンタグラフを下降させる時に、集電舟が静かに下
降するようにするため、シリンダの押圧の速度は緩やか
でなければならない。そのためにシリンダの反空気源側
と、場合によっては空気源側とに絞り弁を設け、この絞
り弁からの空気の吸排気を制限してシリンダの動きを緩
やかにする。[Prior Art] A pantograph, which is a pantograph device, generally has a current collector boat equipped with an overhead wire and a sliding plate on the top.
It is pushed up by a spring and lowered by a pneumatic cylinder. When lowering the pantograph, the speed of pressing the cylinder must be slow so that the collector boat can be lowered quietly. For this purpose, a throttle valve is provided on the side of the cylinder opposite to the air source, and in some cases on the air source side, and the intake and exhaust of air from the throttle valve is restricted to slow down the movement of the cylinder.
【０００３】図３は従来例の絞り弁の断面図であって、
シリンダのシリンダ壁１ａ（空気源側又は反空気源側）
に絞り弁の弁体２がねじ込まれる。弁体２には２段に吸
排気口４ａ、４ｂが径方向に開口し、調整ねじ６が軸方
向にねじ込まれている。調整ねじ６はロックナット５で
固定される。この絞り弁はシリンダに取付けられて大気
に露出しているので、吸気の時に塵を吸い込む恐れが大
きい。そのため空気穴８ａを設けたカバー８で絞り弁全
体を覆い、ボルト９でシリンダ壁１ａに取付ける。FIG. 3 is a sectional view of a conventional throttle valve.
Cylinder wall 1a of cylinder (air source side or opposite air source side)
The valve body 2 of the throttle valve is screwed in. The valve body 2 has intake and exhaust ports 4a and 4b opened in the radial direction in two stages, and an adjusting screw 6 is screwed into the valve body 2 in the axial direction. The adjustment screw 6 is fixed with a lock nut 5. Since this throttle valve is attached to the cylinder and exposed to the atmosphere, there is a great possibility that it will suck in dust during intake. Therefore, the entire throttle valve is covered with a cover 8 provided with an air hole 8a, and is attached to the cylinder wall 1a with bolts 9.
【０００４】0004
【発明が解決しようとする課題】前記の従来例では、防
塵のためにカバーが必要であって空間を大きく占有し、
カバーの空気穴の位置もカバーの姿勢に応じて下方に位
置するように配慮しなければならない。[Problems to be Solved by the Invention] In the above-mentioned conventional example, a cover is required for dustproofing, which occupies a large amount of space.
Care must also be taken to position the air holes in the cover so that they are positioned downwards depending on the posture of the cover.
【０００５】この発明の目的は、パンタグラフを下降さ
せるシリンダの絞り弁の防塵性を確実にしてスペースを
節約し、あわせて取付位置の制約をなくするような絞り
弁付シリンダを備えるパンタグラフ装置を提供すること
にある。[0005] An object of the present invention is to provide a pantograph device equipped with a cylinder with a throttle valve that ensures the dustproof property of the throttle valve of the cylinder for lowering the pantograph, saves space, and eliminates restrictions on the mounting position. It's about doing.
【０００６】[0006]
【課題を解決するための手段】発明１の絞り弁付シリン
ダを備えるパンタグラフ装置は、上枠と下枠とからなる
パンタグラフと、このパンタグラフの上部に設けられる
集電舟と、前記下枠を押圧して前記パンタグラフを下降
させる空気式のシリンダと、このシリンダの空気源側又
は反空気源側に設ける絞り弁とからなる絞り弁付シリン
ダを備えるパンタグラフ装置において、前記絞り弁の弁
体の径方向に吸排気口を設け、この吸排気口にフィルタ
を取付けるものである。[Means for Solving the Problems] A pantograph device equipped with a cylinder with a throttle valve according to the first aspect of the invention includes a pantograph consisting of an upper frame and a lower frame, a current collector boat provided at the upper part of the pantograph, and a presser-operating member that presses the lower frame. In a pantograph device equipped with a cylinder with a throttle valve, which includes a pneumatic cylinder for lowering the pantograph and a throttle valve provided on an air source side or a side opposite to the air source of this cylinder, the radial direction of the valve body of the throttle valve is An intake/exhaust port is provided in the exhaust port, and a filter is attached to the intake/exhaust port.
【０００７】発明２の絞り弁付シリンダを備えるパンタ
グラフ装置は発明１において、前記フィルタを連続気泡
の金属性多孔質材とするものである。[0007] A pantograph device equipped with a cylinder with a throttle valve according to a second aspect of the present invention is the same as the first aspect, in which the filter is made of an open-cell metallic porous material.
【０００８】発明３の絞り弁付シリンダを備えるパンタ
グラフ装置は発明１又は２において、前記フィルタを環
状とし、その一方は前記弁体に設けた環状の当接面に当
接し、他方は前記弁体に設けた環状溝に着脱自在に取り
付けられる止め輪に当接するものである。[0008] In the pantograph device equipped with a cylinder with a throttle valve according to Invention 3, in Invention 1 or 2, the filter is annular, one of which is in contact with an annular contact surface provided on the valve body, and the other is in contact with the annular contact surface provided on the valve body. It comes into contact with a retaining ring that is removably attached to an annular groove provided in the ring.
【０００９】[0009]
【作用】発明１において、パンタグラフを上昇させるシ
リンダ１に設けた絞り弁１０は吸排気口４にフィルタ３
が直接に取付けられるので防塵性が確保され、しかも一
度、吸気で付着した塵は排気の時にほとんどが吹き飛ば
されるのでフィルタ３の寿命が長くなる。しかもカバー
を必要としないので空間を大きく占有することがなく、
シリンダ１に対する絞り弁１０の取付姿勢の自由度が確
保される。発明２において、前記フィルタを連続気泡の
金属性多孔質材とすることによりフィルタ３の耐候性が
向上するし、発明３において、止め輪７の着脱により環
状のフィルタ３の着脱は容易になるとともに、フィルタ
３は弁体２に対しコンパクトに装着され、さらに空間占
有率が良好になる。[Operation] In the first invention, the throttle valve 10 provided in the cylinder 1 for raising the pantograph has a filter 3 in the intake/exhaust port 4.
Since the filter 3 is directly attached, dustproofness is ensured, and since most of the dust that has once adhered to the filter 3 is blown away during exhaust air, the life of the filter 3 is extended. Moreover, since it does not require a cover, it does not take up much space.
A degree of freedom in the mounting position of the throttle valve 10 with respect to the cylinder 1 is ensured. In invention 2, the weather resistance of the filter 3 is improved by making the filter a metal porous material with open cells, and in invention 3, the annular filter 3 can be easily attached and detached by attaching and detaching the retaining ring 7. , the filter 3 is mounted compactly on the valve body 2, and space occupancy is further improved.
【００１０】0010
【実施例】図１は実施例の絞り弁の断面図、図２は図１
の絞り弁を備えるパンタグラフ装置の概念的な正面図で
ある。図において、上枠１１ａと下枠１１ｂとからなる
パンタグラフは上部に舟体支持軸１４を介して取付けら
れる集電舟１３を備え、その上面の図示しないすり板が
架線と摺動する。前記下枠１１ｂにはアーム１２が固定
され、空気源からの空気圧で駆動されるシリンダ１がア
ーム１２を押すことによってパンタグラフ１１は下降す
る。下降位置に来るとパンタグラフ１１の舟体支持軸１
４が１４ｘの位置に来るので、フック１５が復帰ばね１
６の力で舟体支持軸１４ｘに係合してパンタグラフ１１
を下降位置に保持する。上昇させる時は図示しないソレ
ノイドでフック１５を外すと図示しないばねでパンタグ
ラフは上昇する。以上はパンタグラフ装置の慣用構造で
ある。[Example] Fig. 1 is a sectional view of a throttle valve according to an example, and Fig. 2 is a sectional view of a throttle valve according to an embodiment.
FIG. 2 is a conceptual front view of a pantograph device including a throttle valve. In the figure, a pantograph consisting of an upper frame 11a and a lower frame 11b is provided with a collector boat 13 attached to the upper part via a boat support shaft 14, and a slide plate (not shown) on the upper surface of the boat slides on the overhead wire. An arm 12 is fixed to the lower frame 11b, and the pantograph 11 is lowered when the cylinder 1, which is driven by air pressure from an air source, pushes the arm 12. When the pantograph 11 reaches the lowered position, the hull support shaft 1
4 comes to the 14x position, so the hook 15 is attached to the return spring 1.
The pantograph 11 is engaged with the hull support shaft 14x with a force of 6.
hold in the lowered position. When raising the pantograph, when the hook 15 is released using a solenoid (not shown), the pantograph is raised by a spring (not shown). The above is the conventional structure of a pantograph device.
【００１１】図１は前記シリンダ１の絞り弁１０の構造
を示し、シリンダ１のシリンダ壁１ａに絞り弁１０の弁
体２がねじ込まれる。弁体２には吸排気口４が径方向に
開口し、ニードル式の調整ねじ６が軸方向にねじ込まれ
ている。調整ねじ６はロックナット５で固定される。こ
の絞り弁はシリンダ１に取付けられて大気に露出してい
るので、吸気の時に塵を吸い込む恐れが大きい。そのた
め前記吸排気口４を覆うように環状のフィルタ３が設け
られる。フィルタ３は連続気泡の金属性多孔質材からな
り、例えばアルミニウムから形成される。環状のフィル
タ３は弁体２の環状の当接面に一方が当接し、他方は弁
体２に設けた環状溝に着脱自在な例えばＣ形止め輪のよ
うな止め輪７で固定される。FIG. 1 shows the structure of the throttle valve 10 of the cylinder 1, in which the valve body 2 of the throttle valve 10 is screwed into the cylinder wall 1a of the cylinder 1. An intake/exhaust port 4 opens in the radial direction of the valve body 2, and a needle-type adjustment screw 6 is screwed into the valve body 2 in the axial direction. The adjustment screw 6 is fixed with a lock nut 5. Since this throttle valve is attached to the cylinder 1 and exposed to the atmosphere, there is a high possibility that dust will be sucked in during intake. Therefore, an annular filter 3 is provided to cover the intake and exhaust ports 4. The filter 3 is made of open-cell metallic porous material, for example, aluminum. One side of the annular filter 3 contacts the annular contact surface of the valve body 2, and the other side is fixed to an annular groove provided in the valve body 2 with a removable retaining ring 7, such as a C-shaped retaining ring.
【００１２】前記構造によれば、パンタグラフを上昇さ
せるシリンダ１に設けた絞り弁１０は吸排気口４にフィ
ルタ３が直接に取付けられるので防塵性が確保され、し
かも一度、吸気で付着した塵は排気の時にほとんどが吹
き飛ばされるのでフィルタ３の寿命が長くなる。しかも
カバーを必要としないので空間を大きく占有することが
なく、シリンダ１に対する絞り弁１０の取付姿勢の自由
度が確保される。そして前記フィルタを連続気泡の金属
性多孔質材とすることによりフィルタ３の耐候性が向上
するし、止め輪７の着脱によりフィルタ３の着脱は容易
になるとともに、フィルタ３は弁体２に対しコンパクト
に装着され、さらに空間占有率が良好になる。According to the above structure, since the filter 3 is directly attached to the intake/exhaust port 4 of the throttle valve 10 provided in the cylinder 1 for raising the pantograph, dustproofness is ensured, and moreover, once the dust adheres to the intake air, it is removed. Since most of it is blown away during exhaust, the life of the filter 3 is extended. Moreover, since a cover is not required, a large amount of space is not occupied, and a degree of freedom in the mounting position of the throttle valve 10 with respect to the cylinder 1 is ensured. By making the filter a metal porous material with open cells, the weather resistance of the filter 3 is improved, and the attachment and detachment of the retaining ring 7 makes it easy to attach and detach the filter 3. It can be installed compactly and has a good space occupancy.
【００１３】[0013]
【発明の効果】この発明群の絞り弁付シリンダを備える
パンタグラフ装置は、上枠と下枠とからなるパンタグラ
フと、このパンタグラフの上部に設けられる集電舟と、
前記下枠を押圧して前記パンタグラフを下降させる空気
式のシリンダと、このシリンダの空気源側又は反空気源
側に設ける絞り弁とからなる絞り弁付シリンダを備える
パンタグラフ装置において、前記絞り弁の弁体の径方向
に吸排気口を設け、この吸排気口にフィルタを取付ける
ようにするものである。その結果、パンタグラフを下降
させるシリンダの絞り弁の防塵性を確実にしてスペース
を節約し、あわせて取付位置の制約をなくするという効
果がある。そして前記フィルタを連続気泡の金属性多孔
質材とするようにしたり、前記フィルタを環状とし、そ
の一方は前記弁体に設けた環状の当接面に当接し、他方
は前記弁体に設けた環状溝に着脱自在に取り付けられる
止め輪に当接するようにすることにより、フィルタの耐
候性が向上して寿命が長くなったり、フィルタの着脱が
容易であってよりコンパクトになるという効果がある。[Effects of the Invention] The pantograph device equipped with a cylinder with a throttle valve of this invention group includes a pantograph consisting of an upper frame and a lower frame, a current collector boat provided on the upper part of the pantograph,
In a pantograph device equipped with a cylinder equipped with a throttle valve, which includes a pneumatic cylinder that presses the lower frame to lower the pantograph, and a throttle valve provided on the air source side or the side opposite to the air source of this cylinder, the throttle valve An intake/exhaust port is provided in the radial direction of the valve body, and a filter is attached to the intake/exhaust port. As a result, the dust-proof property of the throttle valve of the cylinder for lowering the pantograph is ensured, space is saved, and there are no restrictions on the mounting position. The filter may be made of an open-cell metallic porous material, or the filter may be annular, one of which is in contact with an annular contact surface provided on the valve body, and the other is provided with an annular contact surface provided on the valve body. By abutting against a retaining ring that is detachably attached to the annular groove, the weather resistance of the filter is improved and its lifespan is extended, and the filter is easy to attach and detach, making it more compact.
【図１】実施例の絞り弁の断面図[Figure 1] Cross-sectional view of the throttle valve of the example
【図２】図１の絞り弁を備えるパンタグラフ装置の概念
的な正面図[Fig. 2] A conceptual front view of a pantograph device equipped with the throttle valve of Fig. 1.
【図３】従来例の絞り弁の断面図[Figure 3] Cross-sectional view of a conventional throttle valve
１ シリンダ １ａ シリンダ壁 ２ 弁体 ３ フィルタ ４ 吸排気口 ６ 調整ねじ ７ 止め輪 ８ カバー １０ 絞り弁 １１ パンタグラフ １３ 集電舟 １５ フック 1 Cylinder 1a Cylinder wall 2 Valve body 3 Filter 4 Intake and exhaust ports 6 Adjustment screw 7 Retaining ring 8 Cover 10 Throttle valve 11 Pantograph 13 Electricity boat 15 Hook
Claims (3)
のパンタグラフの上部に設けられる集電舟と、前記下枠
を押圧して前記パンタグラフを下降させる空気式のシリ
ンダと、このシリンダの空気源側又は反空気源側に設け
る絞り弁とからなる絞り弁付シリンダを備えるパンタグ
ラフ装置において、前記絞り弁の弁体の径方向に吸排気
口を設け、この吸排気口にフィルタを取付けることを特
徴とする絞り弁付シリンダを備えるパンタグラフ装置。1. A pantograph consisting of an upper frame and a lower frame, a current collector provided on the upper part of the pantograph, a pneumatic cylinder that presses the lower frame to lower the pantograph, and a pneumatic cylinder that presses the lower frame to lower the pantograph. In a pantograph device equipped with a cylinder with a throttle valve provided on the source side or on the side opposite to the air source, an intake/exhaust port may be provided in the radial direction of the valve body of the throttle valve, and a filter may be attached to the intake/exhaust port. A pantograph device equipped with a cylinder with a characteristic throttle valve.
パンタグラフ装置において、前記フィルタを連続気泡の
金属性多孔質材とすることを特徴とする絞り弁付シリン
ダを備えるパンタグラフ装置。2. A pantograph device equipped with a cylinder with a throttle valve according to claim 1, wherein the filter is made of an open-cell metallic porous material.
備えるパンタグラフ装置において、前記フィルタを環状
とし、その一方は前記弁体に設けた環状の当接面に当接
し、他方は前記弁体に設けた環状溝に着脱自在に取り付
けられる止め輪に当接することを特徴とする絞り弁付シ
リンダを備えるパンタグラフ装置。3. A pantograph device equipped with a cylinder with a throttle valve according to claim 1 or 2, wherein the filter is annular, one of which is in contact with an annular contact surface provided on the valve body, and the other is in contact with an annular contact surface provided on the valve body. A pantograph device equipped with a cylinder with a throttle valve, characterized in that the cylinder comes into contact with a retaining ring that is detachably attached to an annular groove provided in the body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13448091A JPH04359605A (en) | 1991-06-06 | 1991-06-06 | Pantograph provided with cylinder associated throttle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13448091A JPH04359605A (en) | 1991-06-06 | 1991-06-06 | Pantograph provided with cylinder associated throttle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04359605A true JPH04359605A (en) | 1992-12-11 |
Family
ID=15129314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13448091A Pending JPH04359605A (en) | 1991-06-06 | 1991-06-06 | Pantograph provided with cylinder associated throttle valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04359605A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008136332A (en) * | 2006-10-23 | 2008-06-12 | Railway Technical Res Inst | Aerodynamic sound reduction structure |
| JP2010022167A (en) * | 2008-07-14 | 2010-01-28 | Railway Technical Res Inst | Pantograph |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5684952A (en) * | 1979-12-14 | 1981-07-10 | Nippon Steel Corp | Coating steel plate for droneeanddredrone can and droneeanddironing can |
| JPS5792133A (en) * | 1980-11-27 | 1982-06-08 | Kanai Hiroyuki | Heat treating device for metallic card clothing |
| JPS57197703A (en) * | 1981-05-30 | 1982-12-04 | Nippon Denki Sylvania Kk | Positioning of lighting apparatus body |
| JPS602305B2 (en) * | 1973-02-23 | 1985-01-21 | 三菱化学株式会社 | Method for producing alkyl N-(2-pyridyl)formimidates |
| JPH01117602A (en) * | 1987-10-08 | 1989-05-10 | Siemens Ag | Half rhombic pantagraph |
| JPH01193474A (en) * | 1988-01-28 | 1989-08-03 | Nishishiba Electric Co Ltd | Lekage valve |
| JPH0396895A (en) * | 1989-09-11 | 1991-04-22 | Mitsubishi Materials Corp | Powder container |
| JPH03114589A (en) * | 1989-09-27 | 1991-05-15 | Nippon Steel Corp | Water treatment filter and preparation thereof |
-
1991
- 1991-06-06 JP JP13448091A patent/JPH04359605A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS602305B2 (en) * | 1973-02-23 | 1985-01-21 | 三菱化学株式会社 | Method for producing alkyl N-(2-pyridyl)formimidates |
| JPS5684952A (en) * | 1979-12-14 | 1981-07-10 | Nippon Steel Corp | Coating steel plate for droneeanddredrone can and droneeanddironing can |
| JPS5792133A (en) * | 1980-11-27 | 1982-06-08 | Kanai Hiroyuki | Heat treating device for metallic card clothing |
| JPS57197703A (en) * | 1981-05-30 | 1982-12-04 | Nippon Denki Sylvania Kk | Positioning of lighting apparatus body |
| JPH01117602A (en) * | 1987-10-08 | 1989-05-10 | Siemens Ag | Half rhombic pantagraph |
| JPH01193474A (en) * | 1988-01-28 | 1989-08-03 | Nishishiba Electric Co Ltd | Lekage valve |
| JPH0396895A (en) * | 1989-09-11 | 1991-04-22 | Mitsubishi Materials Corp | Powder container |
| JPH03114589A (en) * | 1989-09-27 | 1991-05-15 | Nippon Steel Corp | Water treatment filter and preparation thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008136332A (en) * | 2006-10-23 | 2008-06-12 | Railway Technical Res Inst | Aerodynamic sound reduction structure |
| JP2010022167A (en) * | 2008-07-14 | 2010-01-28 | Railway Technical Res Inst | Pantograph |
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