JP2519464Y2 - Safety device for vehicle drum tester - Google Patents
Safety device for vehicle drum testerInfo
- Publication number
- JP2519464Y2 JP2519464Y2 JP10270190U JP10270190U JP2519464Y2 JP 2519464 Y2 JP2519464 Y2 JP 2519464Y2 JP 10270190 U JP10270190 U JP 10270190U JP 10270190 U JP10270190 U JP 10270190U JP 2519464 Y2 JP2519464 Y2 JP 2519464Y2
- Authority
- JP
- Japan
- Prior art keywords
- vehicle
- connecting member
- air
- drum
- tension
- 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
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Description
【考案の詳細な説明】 (産業上の利用分野) 本考案は車両のドラムテスタに用いられる安全装置に
関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a safety device used in a drum tester of a vehicle.
(従来の技術) 車両のドラムテスタとしては、実公平2−16728号公
報に示されるように、回転駆動されるドラムの上に車両
を載置せしめると共に該ドラムを回転させることにより
車両を上記ドラムに対して相対走行させて車両の走行テ
ストを行なうドラムテスタが知られている。(Prior Art) As a drum tester for a vehicle, as disclosed in Japanese Utility Model Publication No. 2-16728, the vehicle is mounted on a rotationally driven drum and the vehicle is rotated by rotating the drum. There is known a drum tester that performs a traveling test of a vehicle by traveling relative to the.
しかるに、上記のようにドラムを回転させる方式では
車両の相対速度は120km/hrが限界である。ところが、エ
ンジンの高性能化及び高出力化に伴って車両を200km/hr
程度の相対速度で走行させて車両のノイズ或いはボディ
の剛性等をテストする必要が生じてきた。However, in the method of rotating the drum as described above, the relative speed of the vehicle is limited to 120 km / hr. However, due to the high performance and high output of the engine, the vehicle speed was increased to 200 km / hr.
It has become necessary to drive the vehicle at a relative speed to some extent to test the noise of the vehicle or the rigidity of the body.
そこで、本考案者は、回転自在に支持されたドラムの
上に車両を載置せしめると共に該車両を駆動することに
より該車両を上記ドラムに対して相対走行させて走行テ
ストを行なう装置を考慮した。Therefore, the present inventor has considered a device for carrying out a running test by placing the vehicle on a rotatably supported drum and driving the vehicle to cause the vehicle to travel relative to the drum. .
(考案が解決しようとする課題) ところが、車両を駆動して回転自在なドラムに対して
相対走行させる場合には、車両がドラム上から飛び出さ
ないように車両を連結部材で牽引しておく必要がある。(Problems to be solved by the invention) However, when the vehicle is driven to travel relative to a rotatable drum, it is necessary to pull the vehicle by a connecting member so as not to jump out of the drum. There is.
この場合、車両をタイトに牽引しておくと、車両が前
後方向に全く移動できないので、タイヤのアンバランス
テストやボディの剛性テストなど車両に乗った検査員が
自らの感覚によって行なうテストのように車両が前後方
向へ若干移動することを許容しつつ行なうテストが不可
能になる一方、車両をルーズに牽引しておくと車両がド
ラム上から飛び出す虞れがあるという両立し難い問題が
ある。In this case, if the vehicle is towed tightly, the vehicle cannot move in the front-back direction at all, so it will be similar to a test performed by an inspector on board the vehicle, such as a tire imbalance test or a body rigidity test. While it is impossible to perform a test while allowing the vehicle to slightly move in the front-rear direction, if the vehicle is towed loosely, the vehicle may jump out of the drum.
上記に鑑みて、本考案は、ドラム上を相対走行する車
両を前後方向へ若干移動可能に保持することにより車両
が前後方向へ若干移動することを許容しつつ行なうテス
トを可能にすると共に、車両が高速で相対走行しても車
両がドラム上から飛び出さないようにすることを目的と
する。In view of the above, the present invention enables a test to be performed while allowing a vehicle to move slightly in the front-rear direction by holding the vehicle traveling relatively on the drum in the front-rear direction, while allowing the vehicle to move slightly in the front-rear direction. The purpose is to prevent the vehicle from jumping out of the drum even when the vehicle runs relatively at high speed.
(課題を解決するための手段) 上記の目的を達成するため、本考案は、通常の走行テ
スト時には、エアシリンダ内のエアの弾性力によって車
両を適度の張力で引っ張っておく一方、車両が飛び出そ
うとする際には上記エアシリンダ内のエア圧を高圧にし
て車両を高張力で引っ張るものである。(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention, during a normal running test, pulls the vehicle with an appropriate tension by the elastic force of the air in the air cylinder while the vehicle pops out. In doing so, the air pressure in the air cylinder is increased to pull the vehicle with high tension.
具体的に本考案が講じた解決手段は、車両を回転自在
に支持されたドラムの上に載置し該ドラムに対して相対
走行させて走行テストを行なうための車両のドラムテス
タに用いられる安全装置を対象とし、車両を回転自在に
支持されたドラムの上に載置し該ドラムに対して相対走
行させて走行テストを行なうための車両のドラムテスタ
に用いられる安全装置であって、先端が上記車両に連結
されて該車両をベースに対して係止する連結部材と、該
連結部材に介設され該連結部材に所定の張力を付与して
該連結部材を緊張させるエアシリンダと、上記連結部材
に加わる張力を検出する荷重検出手段と、該荷重検出手
段の出力を受け、連結部材に加わる張力が所定値以下の
ときにはエアシリンダ内のエア圧を低圧に維持する一
方、連結部材に加わる張力が所定値よりも大きくなると
上記連結部材の張力を増大させるようエアシリンダ内に
高圧エアを供給する制御手段とを備えている構成とする
ものである。Specifically, the solving means taken by the present invention is a safety measure used in a vehicle drum tester for carrying out a running test by placing a vehicle on a rotatably supported drum and running the vehicle relative to the drum. A safety device used for a drum tester of a vehicle for carrying out a running test by placing a vehicle on a rotatably supported drum and traveling relative to the drum. A connecting member that is connected to the vehicle and locks the vehicle with respect to a base; an air cylinder that is interposed in the connecting member and applies a predetermined tension to the connecting member to tension the connecting member; A load detecting means for detecting the tension applied to the member and an output of the load detecting means. When the tension applied to the connecting member is equal to or less than a predetermined value, the air pressure in the air cylinder is maintained at a low pressure while being applied to the connecting member. Force is to a configuration and a control means for supplying high-pressure air into the air cylinder so as to increase the tension in the larger When the connecting member than the predetermined value.
(作用) 上記の構成により、連結部材に介設され該連結部材に
所定の張力を付与して該連結部材を緊張させるエアシリ
ンダを備えているため、車両はエアシリンダ内のエアの
弾性力によって前後方向に適度に移動することができ
る。(Operation) With the above structure, the vehicle is provided with the air cylinder that is interposed in the connecting member and that applies a predetermined tension to the connecting member to tension the connecting member. Therefore, the vehicle is operated by the elastic force of the air in the air cylinder. It can move appropriately in the front-back direction.
また、連結部材に加わる張力を検出する荷重検出手段
の出力を受け、連結部材に加わる張力が所定値よりも大
きくなると連結部材の張力を増大させるようエアシリン
ダ内に高圧エアを供給する制御手段を備えているため、
車両がドラム上から飛び出そうとすると、連結部材に加
わる張力が所定値よりも大きくなり、制御手段がエアシ
リンダ内のエア圧を高圧にして連結部材の張力を増大さ
せるので、車両は高張力で引っ張られる。Further, the control means for receiving the output of the load detecting means for detecting the tension applied to the connecting member and supplying the high pressure air into the air cylinder so as to increase the tension of the connecting member when the tension applied to the connecting member becomes larger than a predetermined value. Because it has
When the vehicle tries to jump out of the drum, the tension applied to the connecting member becomes larger than a predetermined value, and the control means increases the air pressure in the air cylinder to increase the tension of the connecting member. Be pulled.
(実施例) 以下、本考案の実施例を図面に基づいて説明する。Embodiment An embodiment of the present invention will be described below with reference to the drawings.
第2図は本考案に係る安全装置Aが適用される車両の
ドラムテスタであって、同図において、10は回転自在に
支持され後輪駆動の車両Bの前輪が載置される大径の前
側ドラム、12,12は同じく回転自在に支持され車両Bの
後輪が載置される前後一対の小径の後側ドラムであり、
車両Bを駆動すると車両Bは前後両ドラム10,12に対し
て相対走行可能である。FIG. 2 is a drum tester of a vehicle to which the safety device A according to the present invention is applied. In FIG. 2, 10 is a rotatably supported, large-diameter vehicle on which front wheels of a rear-wheel drive vehicle B are mounted. The front side drums 12 and 12 are also a pair of front and rear small-diameter rear side drums on which the rear wheels of the vehicle B are rotatably supported.
When the vehicle B is driven, the vehicle B can travel relative to the front and rear drums 10 and 12.
第1図は安全装置Aの全体構成を示し、同図において
14はエアシリンダであって、該エアシリンダ14のシリン
ダ14aは、第2図に示すようにフロアに立設されたベー
スとしての支柱15に固持されている。FIG. 1 shows the overall structure of the safety device A.
Reference numeral 14 is an air cylinder, and a cylinder 14a of the air cylinder 14 is fixed to a column 15 as a base which is erected on the floor as shown in FIG.
第1図において、16は車両Bの牽引フック(図示して
いない)に懸けられるフック、18はエアシリンダ14のピ
ストンロッド14bと上記フック16とを連結するチェーン
であって、これらフック16及びチェーン18によって連結
部材20が構成されている。In FIG. 1, 16 is a hook that is hung on a tow hook (not shown) of the vehicle B, and 18 is a chain that connects the piston rod 14b of the air cylinder 14 and the hook 16 to each other. The connecting member 20 is composed of 18.
第1図において、22は高圧エアを供給する高圧エア供
給通路24を開閉するソレノイドバルブよりなる高圧エア
開閉弁、26は低圧エアを供給する低圧エア供給通路28を
開閉するソレノイドバルブよりなる低圧エア開閉弁であ
る。また、同図において30はクローズドセンター型3ポ
ジションのソレノイドバルブよりなる流路切換弁であっ
て、流路切換弁30は、高圧エア供給通路24と低圧エア供
給通路26とが合流してなるエア供給通路32及びエアを大
気に開放するエア開放通路34と、エアシリンダ14のロッ
ド側に連通したロッド側エア通路36及びエアシリンダ14
のヘッド側に連通したヘッド側エア通路38との間で流路
の切換え及び停止を行なう。そして、以上説明した高圧
エア開閉弁22、高圧エア供給通路24、低圧エア開閉弁2
6、低圧エア供給通路28、エア供給通路32、流路切換弁3
0、ロッド側エア通路36及びヘッド側エア通路38によっ
て制御手段39が構成されている。In FIG. 1, 22 is a high-pressure air on-off valve that is a solenoid valve that opens and closes a high-pressure air supply passage 24 that supplies high-pressure air, and 26 is low-pressure air that is a solenoid valve that opens and closes a low-pressure air supply passage 28 that supplies low-pressure air. It is an on-off valve. Further, in the figure, reference numeral 30 is a flow path switching valve composed of a closed center type three-position solenoid valve, and the flow path switching valve 30 is an air flow obtained by merging a high pressure air supply passage 24 and a low pressure air supply passage 26. The supply passage 32, an air release passage 34 for releasing air to the atmosphere, a rod side air passage 36 communicating with the rod side of the air cylinder 14, and an air cylinder 14
The flow path is switched and stopped with respect to the head side air passage 38 communicating with the head side. The high-pressure air on-off valve 22, the high-pressure air supply passage 24, and the low-pressure air on-off valve 2 described above
6, low pressure air supply passage 28, air supply passage 32, flow path switching valve 3
0, the rod side air passage 36 and the head side air passage 38 constitute a control means 39.
第1図において、40はロッド側エア通路36に接続され
エアシリンダ14のロッド側が低圧側の所定圧力になると
低圧エア開閉弁26及び流路切換弁30を中立位置にさせる
低圧側圧力センサ、42はロッド側エア通路36に接続され
エアシリンダ14のロッド側が高圧側の所定圧力になると
高圧エア開閉弁22及び流路切換弁30を右側位置にさせる
荷重検出手段としての高圧側圧力センサである。In FIG. 1, reference numeral 40 is a low pressure side pressure sensor which is connected to the rod side air passage 36 and which brings the low pressure air on-off valve 26 and the flow path switching valve 30 to a neutral position when the rod side of the air cylinder 14 reaches a predetermined pressure on the low pressure side. Is a high pressure side pressure sensor as a load detecting means which is connected to the rod side air passage 36 and moves the high pressure air on-off valve 22 and the flow path switching valve 30 to the right side position when the rod side of the air cylinder 14 reaches a predetermined pressure on the high pressure side.
第1図において、44は手動スイッチであって、該手動
スイッチは、オン操作されると低圧エア開閉弁26を右側
位置に、高圧エア開閉弁22を中立位置に、流路切換弁30
を右側位置にさせると共に、オフ操作されると低圧エア
開閉弁26及び高圧エア開閉弁22を各々中立位置に、流路
切換弁30を左側位置に各々させる。In FIG. 1, reference numeral 44 denotes a manual switch, and when the manual switch is turned on, the low pressure air opening / closing valve 26 is set to the right position, the high pressure air opening / closing valve 22 is set to the neutral position, and the flow path switching valve 30 is set.
Is set to the right side position, and when it is turned off, the low pressure air opening / closing valve 26 and the high pressure air opening / closing valve 22 are set to the neutral position, and the flow path switching valve 30 is set to the left side position.
以下、安全装置Aの作動について説明する。 Hereinafter, the operation of the safety device A will be described.
まず、エアシリンダ14内のエアを外部に開放した状態
でエアシリンダ14のピストンロッド14bを進出させ、フ
ック16を車両Bの牽引フックに懸ける。First, the piston rod 14b of the air cylinder 14 is advanced with the air in the air cylinder 14 open to the outside, and the hook 16 is hung on the tow hook of the vehicle B.
次に、手動スイッチ44をオン操作し、低圧エア供給通
路28、エア供給通路32及びロッド側エア通路36を通って
エアシリンダ14のロッド側に低圧エアを供給してピスト
ンロッド14bを後退させる。そして、ピストンロッド14b
が後退し連結部材20が所定の張力で車両を引っ張った状
態つまりエアシリンダ14のロッド側が低圧側の所定圧に
なると、低圧側圧力センサ40が作動して低圧エアの供給
を停止する。この状態で車両Bの走行テストを行なう
と、車両はエアシリンダ14内のエアの弾性力によって前
後方向に適度に移動できるので、検査員の感覚による検
査等車両が前後方向に若干移動するのを許容しつつ行な
うテストに適した状態になる。Next, the manual switch 44 is turned on to supply low pressure air to the rod side of the air cylinder 14 through the low pressure air supply passage 28, the air supply passage 32, and the rod side air passage 36 to retract the piston rod 14b. And piston rod 14b
When the vehicle is retracted and the connecting member 20 pulls the vehicle with a predetermined tension, that is, when the rod side of the air cylinder 14 reaches a predetermined pressure on the low pressure side, the low pressure side pressure sensor 40 operates to stop the supply of low pressure air. When the running test of the vehicle B is performed in this state, the vehicle can be appropriately moved in the front-rear direction by the elastic force of the air in the air cylinder 14, so that the vehicle is slightly moved in the front-rear direction such as an inspection by an inspector. It is in a state suitable for the test to be performed while allowing it.
もし、走行テスト中に車両Bが飛び出そうとすると、
連結部材20ひいてはピストンロッド14bが進出するた
め、エアシリンダ14のロッド側が高圧になる。そして、
エアシリンダ14のロッド側が高圧側の所定圧になると、
高圧側圧力センサ42が作動して高圧エア供給通路24、エ
ア供給通路32及びロッド側エア通路36を通って高圧エア
がエアシリンダ14のロッド側に供給される。このため、
ピストンロッド14bがエアシリンダ14のヘッド側に高張
力で引っ張られ、連結部材20の張力が増大するので車両
Bの飛び出しは防止される。If vehicle B tries to jump out during the driving test,
Since the connecting member 20 and thus the piston rod 14b advance, the rod side of the air cylinder 14 has a high pressure. And
When the rod side of the air cylinder 14 reaches a predetermined pressure on the high pressure side,
The high pressure side pressure sensor 42 operates to supply high pressure air to the rod side of the air cylinder 14 through the high pressure air supply passage 24, the air supply passage 32 and the rod side air passage 36. For this reason,
The piston rod 14b is pulled toward the head side of the air cylinder 14 with high tension, and the tension of the connecting member 20 increases, so that the vehicle B is prevented from jumping out.
尚、連結部材20に加わる張力を検出する荷重検出手段
としては、高圧側圧力センサ42に限られず、連結部材20
に加わる張力を直接検出する装置であってもよい。The load detecting means for detecting the tension applied to the connecting member 20 is not limited to the high pressure side pressure sensor 42, and the connecting member 20
It may be a device that directly detects the tension applied to the.
(考案の効果) 以上説明したように、本考案に係る車両のドラムテス
タ用安全装置によると、車両をベースに対して係止する
連結部材と、連結部材に所定の張力を付与して該連結部
材を緊張させるエアシリンダと、連結部材に加わる張力
を検出する荷重検出手段の出力を受け、連結部材に加わ
る張力が所定値よりも大きくなると連結部材の張力を増
大させる制御手段とを備えているため、通常時には車両
はエアシリンダ内のエアの弾性力によって前後方向に適
度に移動することができるので車両が前後方向へ若干移
動することを許容しつつ行なうテストが可能になると共
に、車両がドラム上から飛び出そうとする場合には車両
は張力が増大した連結部材によって係止されるのでドラ
ム上から飛び出さないので安全である。(Effects of the Invention) As described above, according to the safety device for a vehicle drum tester of the present invention, the connecting member that locks the vehicle with respect to the base and the connecting member by applying a predetermined tension to the connecting member. An air cylinder that tensions the member and a control unit that receives the output of the load detection unit that detects the tension applied to the connecting member and increases the tension of the connecting member when the tension applied to the connecting member becomes larger than a predetermined value. Therefore, in normal times, the vehicle can appropriately move in the front-rear direction by the elastic force of the air in the air cylinder. When attempting to jump out from above, the vehicle is safe because it is locked by the connecting member with increased tension and does not jump out of the drum.
第1図は本考案の一実施例である車両のドラムテスタ用
安全装置の全体構成図、第2図は上記安全装置が適用さ
れた車両のドラムテスタの概略側面図である。 A…ドラムテスタ用安全装置 B…車両 14…エアシリンダ 16…フック 18…チェーン 20…連結部材 22…高圧エア開閉弁 24…高圧エア供給路 26…低圧エア開閉弁 28…低圧エア供給通路 30…流路切換弁 32…エア供給路 36…ロッド側エア通路 38…ヘッド側エア通路 39…制御手段 40…低圧側圧力センサ 42…高圧側圧力センサ(荷重検出手段)FIG. 1 is an overall configuration diagram of a vehicle drum tester safety device according to an embodiment of the present invention, and FIG. 2 is a schematic side view of a vehicle drum tester to which the safety device is applied. A ... Safety device for drum tester B ... Vehicle 14 ... Air cylinder 16 ... Hook 18 ... Chain 20 ... Connecting member 22 ... High pressure air on / off valve 24 ... High pressure air supply passage 26 ... Low pressure air on / off valve 28 ... Low pressure air supply passage 30 ... Flow path switching valve 32 ... Air supply path 36 ... Rod side air passage 38 ... Head side air passage 39 ... Control means 40 ... Low pressure side pressure sensor 42 ... High pressure side pressure sensor (load detection means)
Claims (1)
載置し該ドラムに対して相対走行させて走行テストを行
なうための車両のドラムテスタに用いられる安全装置で
あって、先端が上記車両に連結されて該車両をベースに
対して係止する連結部材と、該連結部材に介設され該連
結部材に所定の張力を付与して該連結部材を緊張させる
エアシリンダと、上記連結部材に加わる張力を検出する
荷重検出手段と、該荷重検出手段の出力を受け、連結部
材に加わる張力が所定値以下のときにはエアシリンダ内
のエア圧を低圧に維持する一方、連結部材に加わる張力
が所定値よりも大きくなると上記連結部材の張力を増大
させるようエアシリンダ内に高圧エアを供給する制御手
段とを備えていることを特徴とする車両のドラムテスタ
用安全装置。1. A safety device used for a drum tester of a vehicle for carrying out a running test by placing a vehicle on a rotatably supported drum and moving the drum relative to the drum, the tip of which is a safety device. A connecting member that is connected to the vehicle and locks the vehicle with respect to a base; an air cylinder that is interposed in the connecting member and applies a predetermined tension to the connecting member to tension the connecting member; A load detecting means for detecting the tension applied to the member, and an output of the load detecting means. When the tension applied to the connecting member is below a predetermined value, the air pressure in the air cylinder is maintained at a low pressure, while the tension applied to the connecting member. Is greater than a predetermined value, control means for supplying high-pressure air into the air cylinder so as to increase the tension of the connecting member, a safety device for a drum tester of a vehicle.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10270190U JP2519464Y2 (en) | 1990-09-28 | 1990-09-28 | Safety device for vehicle drum tester |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10270190U JP2519464Y2 (en) | 1990-09-28 | 1990-09-28 | Safety device for vehicle drum tester |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0459445U JPH0459445U (en) | 1992-05-21 |
JP2519464Y2 true JP2519464Y2 (en) | 1996-12-04 |
Family
ID=31847172
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10270190U Expired - Lifetime JP2519464Y2 (en) | 1990-09-28 | 1990-09-28 | Safety device for vehicle drum tester |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2519464Y2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4689485B2 (en) * | 2006-02-07 | 2011-05-25 | 株式会社小野測器 | Chassis dynamometer vehicle fixing device |
JP5138333B2 (en) * | 2007-10-09 | 2013-02-06 | トヨタ自動車東日本株式会社 | Brake inspection pressure device |
-
1990
- 1990-09-28 JP JP10270190U patent/JP2519464Y2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0459445U (en) | 1992-05-21 |
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