JP2001236869A - Fluid-switching device - Google Patents
Fluid-switching deviceInfo
- Publication number
- JP2001236869A JP2001236869A JP2000044366A JP2000044366A JP2001236869A JP 2001236869 A JP2001236869 A JP 2001236869A JP 2000044366 A JP2000044366 A JP 2000044366A JP 2000044366 A JP2000044366 A JP 2000044366A JP 2001236869 A JP2001236869 A JP 2001236869A
- Authority
- JP
- Japan
- Prior art keywords
- fluid
- pipe
- attached
- switch device
- piping material
- 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
Landscapes
- Measuring Volume Flow (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
Description
【発明の属する技術分野】本発明は、例えば無人搬送台
車、ロボット等に用いられる流体スイッチ装置に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluid switch device used for, for example, an unmanned carrier, a robot, and the like.
【従来の技術】従来、無人搬送台車、ロボット等のバン
パ部等に対して用いられる障害物検知用のスイッチ装置
として長尺の機械接点スイッチや導電ゴムを用いたもの
が知られている。これらは様々な長さ、形状のに対し端
末部の処理、形状の作り込みに多大の製造時間と、種々
の構成部品を必要としていた.また、機械接点や、導電
ゴムでは緩衝効果が得られず、このため、無人搬送台車
に緩衝材を取り付けなければならず、極めて煩雑な作業
を強いられていた。2. Description of the Related Art Conventionally, as a switch device for detecting an obstacle, which is used for an unmanned transport vehicle, a bumper portion of a robot or the like, a switch device using a long mechanical contact switch or conductive rubber is known. These required a large amount of manufacturing time and various components to process the end portion and create the shape for various lengths and shapes. Moreover, the mechanical contact or the conductive rubber cannot provide a buffering effect, so that a buffer material must be attached to the unmanned carrier, which requires an extremely complicated operation.
【発明が解決しようとする課題】本発明は、上記従来の
事情に鑑みてなされたものであり、被取付体の長さ、形
状等に応じた取り付けを速やかに行うことができ、緩衝
作用を発揮し、部品点数も少ないため、受注から納品に
至る納期が短期間ですみ、低価格に構成できる無人搬送
台車等の適用して好適な流体スイッチ装置を提供するも
のである。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional circumstances, and enables quick mounting in accordance with the length and shape of a body to be mounted, and has a cushioning effect. The present invention provides a fluid switch device which is suitable for use in an unmanned transport vehicle or the like which can be constructed at a low price because the delivery time from order receipt to delivery is short, since it exhibits a small number of parts.
【課題を解決するための手段】請求項1記載の発明に係
る流体スイッチ装置は、被取付体の外周部に取り付けら
れる弾性を有し内部に流体が流通する配管材と、この配
管材内に流体を供給する流体源と、前記配管材の管路に
配置した流体監視手段とを有し、前記配管材に対する物
体の接触に伴う流体の変化を前記流体監視手段により監
視し、流体の変化分を物体検出信号として出力するよう
に構成したことを特徴とするものである。この発明によ
れば、被取付体の外周部に取り付けた弾性を有し内部に
流体が流通する配管材に対する物体の接触に伴う流体の
変化を、前記流体監視手段により監視し、流体の変化分
を物体検出信号として出力するものであるから、被取付
体の外周部に対する取り付けを速やかに行うことがで
き、弾性を有する配管材により衝突時の緩衝作用を発揮
させることができ、部品点数も少ないため、受注から納
品に至る納期が短期間ですみ、低価格に構成することが
可能となる。請求項2記載の発明に係る流体スイッチ装
置は、被取付体の外周部に取り付けられる弾性を有し内
部に流体が流通する配管材と、この配管材内に流体を供
給する流体源と、前記配管材の管路に配置した管路絞り
部及びこの管路絞り部の両側の管路に接続した差圧検出
部とからなる流体監視手段とを有し、前記配管材に対す
る物体の接触に伴う管路絞り部両側の流体圧の差圧を前
記差圧検出部により検出し、物体検出信号として出力す
るように構成したことを特徴とするものである。この発
明によれば、配管材の管路に配置した管路絞り部及びこ
の管路絞り部の両側の管路に接続した差圧検出部とから
なる流体監視手段を採用した構成で、請求項1記載の発
明の流体スイッチ装置の場合と同様な作用を発揮させる
ことができる。請求項3記載の発明に係る流体スイッチ
装置は、被取付体の外周部に取り付けられる弾性を有し
内部に流体が流通する配管材と、この配管材内に流体を
供給する流体源と、前記配管材の管路の途中及び末端部
に配置した一対の圧力計からなる流体監視手段とを有
し、前記配管材に対する物体の接触に伴う流体圧の変化
を、前記一対の圧力計により各々検出し、物体検出信号
として出力するように構成したことを特徴とするもので
ある。この発明によれば、前記配管材の管路の途中及び
末端部に配置した一対の圧力計からなる流体監視手段を
採用した構成で、請求項1記載の発明の流体スイッチ装
置の場合と同様な作用を発揮させることができ、更に周
囲温度の影響も相殺して検出感度をより向上することが
できる。請求項4記載の発明に係る流体スイッチ装置
は、請求項1乃至3のいずれかに記載の流体スイッチ装
置における前記流体が、空気であることを特徴とするも
のである。この発明によれば、請求項1乃至3記載の発
明の流体スイッチ装置の場合と同様な作用を発揮させる
ことができ、これに加えて、流体を空気として構成して
いるので、回収作業が不要で、簡易に大気への放出がで
き、一層コスト安価な流体スイッチ装置を実現できる。According to a first aspect of the present invention, there is provided a fluid switch device which is attached to an outer peripheral portion of a body to be attached and has a resilient pipe member through which fluid flows, and a pipe member having a pipe member. A fluid source for supplying a fluid, and fluid monitoring means disposed in a pipe line of the piping material, wherein the fluid monitoring means monitors a change in fluid caused by contact of an object with the piping material, and detects a change in the fluid. Is output as an object detection signal. According to the present invention, a change in the fluid accompanying the contact of the object with the elastic pipe member, which is attached to the outer peripheral portion of the attached member and through which the fluid flows, is monitored by the fluid monitoring means, and the change in the fluid is monitored. Is output as an object detection signal, so that it can be quickly attached to the outer peripheral portion of the attached body, the cushioning effect at the time of collision can be exhibited by the elastic piping material, and the number of parts is small. Therefore, the delivery period from order receipt to delivery is short, and the price can be reduced. A fluid switch device according to a second aspect of the present invention is a fluid switch device, which is attached to an outer peripheral portion of an attached body, has elasticity and allows a fluid to flow therethrough, a fluid source that supplies a fluid into the piping material, Fluid monitoring means comprising a pipeline constriction disposed in the pipeline of the piping material and a differential pressure detecting unit connected to the pipeline on both sides of the pipeline constriction; It is characterized in that the differential pressure between the fluid pressures on both sides of the conduit throttle section is detected by the differential pressure detecting section and output as an object detection signal. According to the present invention, there is provided a configuration adopting a fluid monitoring means including a pipe narrowing section arranged in a pipe of a pipe material and a differential pressure detecting section connected to pipes on both sides of the pipe narrowing section. The same function as the case of the fluid switch device of the invention described in 1 can be exerted. A fluid switch device according to a third aspect of the present invention is a fluid switch device, which is attached to an outer peripheral portion of an attached body and has a resilient piping material through which a fluid flows, a fluid source for supplying a fluid into the piping material, Fluid monitoring means comprising a pair of pressure gauges disposed in the middle and at the end of the pipe of the piping material, and a change in fluid pressure accompanying contact of an object with the piping material is detected by the pair of pressure gauges, respectively. And it is configured to output as an object detection signal. According to the present invention, a fluid monitoring means comprising a pair of pressure gauges arranged in the middle and at the end of the pipe line of the piping material is adopted, and is similar to the fluid switch device according to the first aspect of the present invention. The effect can be exerted, and the influence of the ambient temperature can be offset to further improve the detection sensitivity. A fluid switch device according to a fourth aspect of the invention is characterized in that the fluid in the fluid switch device according to any one of the first to third aspects is air. According to this invention, it is possible to exhibit the same operation as the case of the fluid switch device according to the first to third aspects of the present invention. In addition, since the fluid is constituted by air, the recovery operation is unnecessary. Thus, the fluid switch device can be easily released to the atmosphere and the cost can be reduced.
【発明の実施の形態】以下に、本発明の実施の形態を詳
細に説明する。 (実施の形態1)図1は、本発明の実施の形態1の流体
スイッチ装置1を無人搬送台車20に適用した例を示す
斜視図、図2は流体スイッチ装置1の概略構成を示す斜
視図である。本実施の形態1の流体スイッチ装置1は、
被取付体である無人搬送台車20のバンパ部21に取り
付けられる弾性を有し内部に空気が流通するゴム管又は
軟質ビニール管からなる配管材2と、この配管材2内に
空気を供給する流体源(エアコンプレッサ)3と、前記
配管材2の管路に配置した流体監視手段である流量計4
と、前記配管材2の管路の末端部に配置した放出弁5と
を有している。前記流量計4は、例えばこれをピエゾフ
ィルムを用いた構成とし、常時の流量を乱流域とすれ
ば、層流域、又は全く流れなくなった場合の検出感度を
大きくすることができる。本実施の形態では、前記流体
として空気を用いて構成しているが、本発明では、流体
の種類を限定するものではなく、空気の他、例えば、
水、オイル等々のものを使用できる。本実施の形態のよ
うに、流体を空気として構成した場合、回収作業が不要
で、簡易に大気への放出ができ、一層コスト安価な流体
スイッチ装置を実現できる。この流体スイッチ装置1に
おいて、前記エア源3から常時空気を配管材2内に流し
ておき放出弁5から大気に放出するようにする。そして
前記流量計4により流量を監視する。無人搬送台車20
が図1に示す障害物30に接触すると、障害物30によ
り配管部2が変形する。これにより、流量計4により監
視する配管部2内の流量に変化が生じ、流量計4によ
り、この流量変化に応じた物体検出信号を得ることがで
きる。従って、バンパ部21に取り付けた弾性を有し内
部に流体が流通する配管材2に対する障害物30の接触
に伴って、障害物30の存在を的確、迅速に検出でき
る。また、バンパ部21に対する取り付けを速やかに行
うことができ、衝突時の緩衝作用を発揮させることもで
きる。更に、部品点数も少ないため、受注から納品に至
る納期が短期間ですみ、低価格に構成することが可能と
なる。 (実施の形態2)図3は実施の形態2の流体スイッチ装
置1Aの概略構成を示す斜視図で、基本的構成は実施の
形態1の流体スイッチ装置1の場合と同様であるが、流
体監視手段として、絞り部である絞り弁11を配管材2
の管路に取り付け、この絞り弁11両側の差圧を検出す
る差圧計12を接続したことが特徴である。この他の構
成は、実施の形態1の場合と同様である。この実施の形
態2の流体スイッチ装置1Aによっても、差圧計12に
よって絞り弁11両側の配管材2の管路の差圧を検出す
ることで、前記無人搬送台車20が図1に示す障害物3
0に接触した場合の障害物検知を的確、迅速に行うこと
ができ、前記実施の形態1の流体スイッチ装置1と同様
な作用を発揮させることができる。なお、差圧計12
を、管路の両側端部に配置すれば、配管材2の管路内の
圧力を所定の値に保持でき、より一層検出感度が向上す
る。本実施の形態2では、前記流体として空気を用いて
構成しているが、この他例えば、水、オイル等々のもの
を使用できることは前述の通りである。 (実施の形態3)図4は実施の形態3の流体スイッチ装
置1Bの概略構成を示す斜視図で、基本的構成は実施の
形態1の流体スイッチ装置1の場合と同様であるが、流
体監視手段として、一対の圧力計15、16を配管材2
の管路の両端側に配置して流体監視手段を構成したこと
が特徴である。この他の構成は、実施の形態1の場合と
同様である。このような実施の形態2の流体スイッチ装
置1Aによっても、一対の圧力計15、16を用いた流
体監視手段の動作で実施の形態1の流体スイッチ装置1
と同様な作用を発揮させることができる。更に、一対の
圧力計15、16の動作により、周囲温度の影響も相殺
して検出感度をより向上することができる。本実施の形
態3では、前記流体として空気を用いて構成している
が、この他例えば、水、オイル等々のものを使用できる
ことは前述の通りである。Embodiments of the present invention will be described below in detail. (Embodiment 1) FIG. 1 is a perspective view showing an example in which a fluid switch device 1 according to Embodiment 1 of the present invention is applied to an unmanned carrier 20. FIG. 2 is a perspective view showing a schematic configuration of the fluid switch device 1. It is. The fluid switch device 1 according to the first embodiment includes:
A piping member 2 made of an elastic rubber tube or a soft vinyl tube through which air flows and which is attached to the bumper portion 21 of the automatic guided vehicle 20 as an attached body, and a fluid for supplying air into the piping member 2 A source (air compressor) 3 and a flow meter 4 serving as a fluid monitoring means disposed in a pipe line of the pipe member 2.
And a discharge valve 5 disposed at the end of the pipe of the pipe material 2. If the flow meter 4 has a configuration using a piezo film, for example, and the normal flow rate is a turbulent flow area, the detection sensitivity in the case of laminar flow area or no flow at all can be increased. In the present embodiment, although the configuration is made using air as the fluid, the present invention does not limit the type of fluid, other than air, for example,
Water, oil, etc. can be used. When air is used as the fluid as in the present embodiment, a recovery operation is not required, the fluid can be easily released to the atmosphere, and a fluid switch device with lower cost can be realized. In the fluid switch device 1, air is constantly flowed from the air source 3 into the pipe member 2 and is discharged from the discharge valve 5 to the atmosphere. Then, the flow rate is monitored by the flow meter 4. Automatic guided vehicle 20
When the pipe contacts the obstacle 30 shown in FIG. 1, the pipe 2 is deformed by the obstacle 30. This causes a change in the flow rate in the pipe section 2 monitored by the flow meter 4, and the flow meter 4 can obtain an object detection signal corresponding to the change in the flow rate. Therefore, the presence of the obstacle 30 can be detected accurately and promptly with the contact of the obstacle 30 with the elastic pipe member 2 attached to the bumper 21 and through which the fluid flows. Further, the mounting to the bumper portion 21 can be performed promptly, and the buffering function at the time of collision can be exhibited. Furthermore, since the number of parts is small, the delivery period from order receipt to delivery is short, and it is possible to construct a low price. (Embodiment 2) FIG. 3 is a perspective view showing a schematic configuration of a fluid switch device 1A according to a second embodiment. The basic configuration is the same as that of the fluid switch device 1 according to the first embodiment. As a means, the throttle valve 11 which is a throttle portion is connected to the piping material 2.
And a differential pressure gauge 12 for detecting a differential pressure on both sides of the throttle valve 11 is connected. Other configurations are the same as those in the first embodiment. Also by the fluid switch device 1A of the second embodiment, the differential pressure gauge 12 detects the differential pressure of the pipeline of the piping material 2 on both sides of the throttle valve 11, so that the automatic guided vehicle 20 can move the obstacle 3 shown in FIG.
Obstacles can be detected accurately and promptly when they come into contact with 0, and the same function as the fluid switch device 1 of the first embodiment can be exhibited. The differential pressure gauge 12
Are disposed at both ends of the pipe, the pressure in the pipe of the pipe material 2 can be maintained at a predetermined value, and the detection sensitivity is further improved. In the second embodiment, air is used as the fluid, but other fluids such as water and oil can be used as described above. (Embodiment 3) FIG. 4 is a perspective view showing a schematic configuration of a fluid switch device 1B according to a third embodiment. The basic configuration is the same as that of the fluid switch device 1 according to the first embodiment. As a means, a pair of pressure gauges 15 and 16
The fluid monitoring means is arranged at both ends of the pipeline. Other configurations are the same as those in the first embodiment. According to the fluid switch device 1A of the second embodiment as well, the operation of the fluid monitoring means using the pair of pressure gauges 15 and 16 allows the fluid switch device 1 of the first embodiment to operate.
The same action as described above can be exhibited. Further, the operation of the pair of pressure gauges 15 and 16 cancels out the influence of the ambient temperature, so that the detection sensitivity can be further improved. In the third embodiment, air is used as the fluid, but other fluids such as water and oil can be used as described above.
【発明の効果】本発明によれば、様々な長さ、形状の被
取付体に対応する場合に、配管材の切断長さ、取り付け
形状を変えるだけで速やかに対応可能であり、また、柔
軟な配管材の中を常時、流体が流れており、緩衝効果が
あるので被取付体側に保護用の部材を付けなくとも良
く、短納期、安価な流体スイッチ装置を提供できる。According to the present invention, it is possible to cope with various lengths and shapes of an object to be mounted simply by changing the cutting length and the mounting shape of the piping material, and to be flexible. Since the fluid always flows through the simple piping material and has a buffering effect, it is not necessary to attach a protection member on the attached body side, and it is possible to provide an inexpensive fluid switch device with a short delivery time.
【図1】本発明の実施の形態1の流体スイッチ装置、無
人搬送台車を示す斜視図である。FIG. 1 is a perspective view showing a fluid switch device and an unmanned carrier according to a first embodiment of the present invention.
【図2】本実施の形態1の流体スイッチ装置の概略斜視
図である。FIG. 2 is a schematic perspective view of the fluid switch device according to the first embodiment.
【図3】本発明の実施の形態2の流体スイッチ装置の概
略斜視図である。FIG. 3 is a schematic perspective view of a fluid switch device according to Embodiment 2 of the present invention.
【図4】本発明の実施の形態3の流体スイッチ装置の概
略斜視図である。FIG. 4 is a schematic perspective view of a fluid switch device according to a third embodiment of the present invention.
1 流体スイッチ装置 2 配管材 3 流体源 4 流量計 5 放出弁 11 絞り弁 12 差圧計 20 無人搬送台車 30 障害物 DESCRIPTION OF SYMBOLS 1 Fluid switch device 2 Piping material 3 Fluid source 4 Flow meter 5 Release valve 11 Throttle valve 12 Differential pressure gauge 20 Automatic guided vehicle 30 Obstacle
Claims (4)
有し内部に流体が流通する配管材と、この配管材内に流
体を供給する流体源と、前記配管材の管路に配置した流
体監視手段とを有し、 前記配管材に対する物体の接触に伴う流体の変化を前記
流体監視手段により監視し、流体の変化分を物体検出信
号として出力するように構成したこと、 を特徴とする流体スイッチ装置。1. A pipe member having elasticity attached to an outer peripheral portion of an attached body and through which a fluid flows, a fluid source for supplying a fluid into the pipe member, and a pipe line of the pipe member. A fluid monitoring unit, wherein the fluid monitoring unit monitors a change in fluid caused by contact of an object with the pipe member, and outputs a change in the fluid as an object detection signal. Fluid switch device.
有し内部に流体が流通する配管材と、この配管材内に流
体を供給する流体源と、前記配管材の管路に配置した管
路絞り部及びこの管路絞り部の両側の管路に接続した差
圧検出部とからなる流体監視手段とを有し、 前記配管材に対する物体の接触に伴う管路絞り部両側の
流体圧の差圧を前記差圧検出部により検出し、物体検出
信号として出力するように構成したこと、 を特徴とする流体スイッチ装置。2. A pipe member which is attached to an outer peripheral portion of an attached body and has elasticity and through which a fluid flows, a fluid source for supplying a fluid into the pipe member, and a pipe line of the pipe member. A fluid monitoring means comprising a pipe narrowing section and a differential pressure detecting section connected to pipes on both sides of the pipe narrowing section, wherein fluid pressure on both sides of the pipe narrowing section accompanying contact of an object with the pipe material Wherein the differential pressure is detected by the differential pressure detector and output as an object detection signal.
有し内部に流体が流通する配管材と、この配管材内に流
体を供給する流体源と、前記配管材の管路の途中及び末
端部に配置した一対の圧力計からなる流体監視手段とを
有し、 前記配管材に対する物体の接触に伴う流体圧の変化を、
前記一対の圧力計により各々検出し、物体検出信号とし
て出力するように構成したこと、 を特徴とする流体スイッチ装置。3. A piping member attached to the outer peripheral portion of an attached body and having an elasticity and through which a fluid flows, a fluid source for supplying a fluid into the piping member, and a pipe in the piping member. Fluid monitoring means consisting of a pair of pressure gauges disposed at the end portion, the change in fluid pressure due to the contact of the object with the pipe material,
The fluid switch device is configured to be respectively detected by the pair of pressure gauges and output as an object detection signal.
請求項1乃至3のいずれかに記載の流体スイッチ装置。4. The fluid switch device according to claim 1, wherein the fluid is air.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000044366A JP2001236869A (en) | 2000-02-22 | 2000-02-22 | Fluid-switching device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000044366A JP2001236869A (en) | 2000-02-22 | 2000-02-22 | Fluid-switching device |
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Publication Number | Publication Date |
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JP2001236869A true JP2001236869A (en) | 2001-08-31 |
Family
ID=18567122
Family Applications (1)
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JP2000044366A Pending JP2001236869A (en) | 2000-02-22 | 2000-02-22 | Fluid-switching device |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007118830A (en) * | 2005-10-28 | 2007-05-17 | Denso Corp | Collision sensing device for vehicle |
WO2011125147A1 (en) * | 2010-04-01 | 2011-10-13 | トヨタ自動車株式会社 | Vehicle internal/external structure |
-
2000
- 2000-02-22 JP JP2000044366A patent/JP2001236869A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007118830A (en) * | 2005-10-28 | 2007-05-17 | Denso Corp | Collision sensing device for vehicle |
WO2011125147A1 (en) * | 2010-04-01 | 2011-10-13 | トヨタ自動車株式会社 | Vehicle internal/external structure |
JP5459391B2 (en) * | 2010-04-01 | 2014-04-02 | トヨタ自動車株式会社 | Vehicle interior / exterior structure |
US8942891B2 (en) | 2010-04-01 | 2015-01-27 | Toyota Jidosha Kabushiki Kaisha | Vehicle interior-exterior structure |
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