JP5728840B2 - Tire water pressure test apparatus and tire water pressure test method - Google Patents

Tire water pressure test apparatus and tire water pressure test method Download PDF

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JP5728840B2
JP5728840B2 JP2010156402A JP2010156402A JP5728840B2 JP 5728840 B2 JP5728840 B2 JP 5728840B2 JP 2010156402 A JP2010156402 A JP 2010156402A JP 2010156402 A JP2010156402 A JP 2010156402A JP 5728840 B2 JP5728840 B2 JP 5728840B2
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tire
water
bead
holding portion
tire holding
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JP2012018109A (en
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高口　紀貴
紀貴 高口
幸信 小澤
幸信 小澤
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Yokohama Rubber Co Ltd
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本発明は、タイヤの静的強度を試験するタイヤ水圧試験装置およびタイヤ水圧試験方法に関する。   The present invention relates to a tire water pressure test apparatus and a tire water pressure test method for testing the static strength of a tire.

従来から、タイヤの静的強度を試験する方法としてタイヤ水圧試験方法が知られている（特許文献１参照）。
すなわち、タイヤ水圧試験方法では以下の手順で行う。
まず、高い内圧に耐え得る強度を有する専用のホイールを用意する。専用のホイールには水注入用のバルブと、空気排出用のバルブとが設けられている。
専用のホイールに試験対象となるタイヤを装着し、水注入用のバルブからタイヤに水を注入すると共に、タイヤの内部に残存している空気を空気排出用のバルブから抜く。
タイヤ内に水が充填されたならば、各バルブとポンプ装置とをホースで接続し、専用のホイールが装着されたタイヤを水槽に収容された水中に投入する。
次いで、ポンプ装置によってタイヤに水を注入してタイヤの内圧を上昇させ、タイヤが破壊されたときのタイヤの内圧を検出することでタイヤの静的強度を測定する。
乗用車用のタイヤの場合、破壊されるときのタイヤの内圧は例えば２ＭＰａであり、通常の使用時における空気圧である２００ｋＰａの１０倍程度の高い圧力である。 Conventionally, a tire hydraulic pressure test method is known as a method for testing the static strength of a tire (see Patent Document 1).
That is, in the tire water pressure test method, the following procedure is used.
First, a dedicated wheel having a strength capable of withstanding a high internal pressure is prepared. The dedicated wheel is provided with a water injection valve and an air discharge valve.
The tire to be tested is mounted on a dedicated wheel, water is injected into the tire from the water injection valve, and air remaining inside the tire is removed from the air exhaust valve.
When the tire is filled with water, each valve and the pump device are connected by a hose, and the tire equipped with a dedicated wheel is poured into the water contained in the water tank.
Next, water is injected into the tire by a pump device to increase the internal pressure of the tire, and the static strength of the tire is measured by detecting the internal pressure of the tire when the tire is destroyed.
In the case of a tire for a passenger car, the internal pressure of the tire when it is destroyed is, for example, 2 MPa, which is about 10 times as high as 200 kPa, which is the air pressure during normal use.

特開２０００−２４１３０４号公報JP 2000-241304 A

しかしながら、上記従来技術では、専用のホイールは、高い内圧に耐えるために構造が大掛かりなものとなり重量が例えば数十ｋｇとなることから、タイヤのホイールへの着脱作業や、ホイールにタイヤが装着されたタイヤ組み立て体を水槽に入れたり、あるいは、水槽から取り出したりする際の作業性が悪いものとなっている。
また、水注入用のバルブからからタイヤに水を注入することで空気排出用のバルブからタイヤに残存している空気を排出させているものの、タイヤの内部から完全に空気を排出させることは困難であり、タイヤ破壊時に検出されるタイヤの内圧の値に影響を与えることが懸念される。
本発明は、上記のような事情に鑑みなされたものであり、その目的は、作業性の向上を図りつつ精度の高い試験を実施する上で有利なタイヤ水圧試験装置およびタイヤ水圧試験方法を提供することにある。 However, in the above prior art, the dedicated wheel has a large structure in order to withstand high internal pressure and has a weight of, for example, several tens of kilograms. The workability when the tire assembly is put into or taken out of the water tank is poor.
In addition, although air remaining in the tire is discharged from the air discharge valve by injecting water into the tire from the water injection valve, it is difficult to completely exhaust the air from inside the tire. There is a concern that the value of the internal pressure of the tire detected at the time of tire destruction may be affected.
The present invention has been made in view of the circumstances as described above, and an object thereof is to provide a tire hydraulic pressure test apparatus and a tire hydraulic pressure test method that are advantageous in performing a highly accurate test while improving workability. There is to do.

上記目的を達成するために本発明のタイヤ水圧試験装置は、底壁と前記底壁の周囲から起立する側壁からなり内部に水が収容される水槽と、前記底壁に配置され、前記収容された水中において、タイヤ回転軸を上下に向けたタイヤの２つのビード部のうち下側に位置するビード部に水密に装着可能な下側タイヤ保持部と、前記下側タイヤ保持部の上方に配置され、前記収容された水中において、前記タイヤの２つのビード部のうち上側に位置するビード部に水密に装着可能な上側タイヤ保持部と、前記水中において前記下側タイヤ保持部に前記下側のビード部が装着され、かつ、前記水中において前記上側タイヤ保持部に前記下側のビード部が装着される装着位置と、前記上側タイヤ保持部が前記上側のビード部から離間した退避位置との間で前記上側タイヤ保持部を昇降させる移動手段と、前記上側タイヤ保持部が前記装着位置に位置した状態で、前記タイヤの内面と、前記下側タイヤ保持部と、前記上側タイヤ保持部とによって囲まれた空間に水を注入することでタイヤの内圧を上昇させる水注入手段と、前記タイヤが破壊されたときの前記タイヤの内圧を検出する内圧検出手段とを備え、前記水注入手段は、前記空間に水を注入する放射状に配置された複数のノズルを備え、前記複数のノズルは、それら複数のノズルから水を吐出させ、それらの水により前記タイヤの内周面に沿って流れる水流を発生させるように設けられていることを特徴とする。
また本発明のタイヤ水圧試験方法は、タイヤ回転軸を上下に向けたタイヤの２つのビード部のうち下側に位置するビード部に水密に装着可能な下側タイヤ保持部と、前記下側タイヤ保持部の上方に配置され、前記タイヤの２つのビード部のうち上側に位置するビード部に水密に装着可能な上側タイヤ保持部とを水中に設け、前記水中において前記下側タイヤ保持部に前記下側のビード部を装着し、かつ、前記上側タイヤ保持部に前記下側のビード部を装着し、このような状態で、前記タイヤの内面と、前記下側タイヤ保持部と、前記上側タイヤ保持部とによって囲まれた空間に水を注入することでタイヤの内圧を上昇させ、前記タイヤが破壊されたときの前記タイヤの内圧を検出し、前記水の注入を管路により行い、前記水中において前記下側タイヤ保持部に前記下側のビード部を装着し、かつ、前記上側タイヤ保持部に前記下側のビード部を装着する前に、前記管路の先端から水を吐出させ、この水により前記タイヤの内周面に沿って流れる水流を発生させ、前記タイヤの内部に残存する空気を前記タイヤの外部に排出するようにしたことを特徴とする。
また本発明のタイヤ水圧試験方法は、タイヤ回転軸を上下に向けたタイヤの２つのビード部のうち下側に位置するビード部に水密に装着可能な下側タイヤ保持部と、前記下側タイヤ保持部の上方に配置され、前記タイヤの２つのビード部のうち上側に位置するビード部に水密に装着可能な上側タイヤ保持部とを水中に設け、前記水中において前記下側タイヤ保持部に前記下側のビード部を装着し、かつ、前記上側タイヤ保持部に前記下側のビード部を装着し、このような状態で、前記タイヤの内面と、前記下側タイヤ保持部と、前記上側タイヤ保持部とによって囲まれた空間に水を注入することでタイヤの内圧を上昇させ、前記タイヤが破壊されたときの前記タイヤの内圧を検出し、前記水の注入を、放射状に配置された複数のノズルにより行い、前記水中において前記下側タイヤ保持部に前記下側のビード部を装着し、かつ、前記上側タイヤ保持部に前記下側のビード部を装着する前に、前記複数のノズルから水を吐出させ、それらの水により前記タイヤの内周面に沿って流れる水流を発生させ、前記タイヤの内部に残存する空気を前記タイヤの外部に排出するようにしたことを特徴とする。 In order to achieve the above object, a tire hydraulic pressure test apparatus according to the present invention comprises a bottom wall and a side wall standing up from the periphery of the bottom wall, a water tank in which water is accommodated, and a water tank accommodated in the bottom wall. In the water, a lower tire holding portion that can be water-tightly mounted on a lower bead portion of the two bead portions of the tire with the tire rotation axis facing up and down, and disposed above the lower tire holding portion An upper tire holding portion that can be water-tightly attached to an upper bead portion of the two bead portions of the tire in the contained water, and the lower tire holding portion in the water. Between a mounting position where the bead portion is mounted and the lower bead portion is mounted on the upper tire holding portion in the water, and a retracted position where the upper tire holding portion is separated from the upper bead portion. The moving means for raising and lowering the upper tire holding portion, and the inner surface of the tire, the lower tire holding portion, and the upper tire holding portion in a state where the upper tire holding portion is located at the mounting position. Water injection means for increasing the internal pressure of the tire by injecting water into the space, and internal pressure detection means for detecting the internal pressure of the tire when the tire is broken, the water injection means A plurality of nozzles arranged radially to inject water into the plurality of nozzles, wherein the plurality of nozzles discharge water from the plurality of nozzles and generate a water flow that flows along the inner peripheral surface of the tire by the water. It is provided as follows.
Further, the tire hydraulic pressure test method of the present invention includes a lower tire holding portion that can be watertightly attached to a bead portion positioned on the lower side of two bead portions of a tire with a tire rotation axis directed upward and downward, and the lower tire An upper tire holding part that is disposed above the holding part and is watertightly mountable on a bead part located on the upper side of the two bead parts of the tire is provided in water, and the lower tire holding part is provided with the lower tire holding part in the water. A lower bead portion is attached, and the lower bead portion is attached to the upper tire holding portion. In such a state, the inner surface of the tire, the lower tire holding portion, and the upper tire Injecting water into the space surrounded by the holding portion increases the internal pressure of the tire, detects the internal pressure of the tire when the tire is destroyed, performs the water injection through a conduit, and In the under Before attaching the lower bead part to the tire holding part and attaching the lower bead part to the upper tire holding part, water is discharged from the tip of the pipe line, and the water causes the tire to discharge. A water flow that flows along the inner peripheral surface of the tire is generated, and air remaining inside the tire is discharged to the outside of the tire.
Further, the tire hydraulic pressure test method of the present invention includes a lower tire holding portion that can be watertightly attached to a bead portion positioned on the lower side of two bead portions of a tire with a tire rotation axis directed upward and downward, and the lower tire An upper tire holding part that is disposed above the holding part and is watertightly mountable on a bead part located on the upper side of the two bead parts of the tire is provided in water, and the lower tire holding part is provided with the lower tire holding part in the water. A lower bead portion is attached, and the lower bead portion is attached to the upper tire holding portion. In such a state, the inner surface of the tire, the lower tire holding portion, and the upper tire Injecting water into a space surrounded by the holding portion to increase the internal pressure of the tire, detecting the internal pressure of the tire when the tire is destroyed, and a plurality of the water injections arranged radially Depending on the nozzle In the water, the lower bead portion is attached to the lower tire holding portion, and water is discharged from the plurality of nozzles before the lower bead portion is attached to the upper tire holding portion. The water flowing along the inner peripheral surface of the tire is generated by the water, and the air remaining in the tire is discharged to the outside of the tire.

本発明の水圧試験装置および水圧試験方法によれば、水中において下側タイヤ保持部と上側タイヤ保持部とによってタイヤの上下のビード部を水密に装着させ、その状態で、タイヤの内圧を上昇させて、タイヤが破壊されたときのタイヤの内圧を検出するようにした。
したがって、タイヤ水圧試験に際しては、重量の重い専用のタイヤホイールをタイヤに装着することなく、タイヤ単体を水槽に出し入れすればよいため、作業の軽減化が図れ、作業性の向上を図る上で有利となる。
また、タイヤ単体を水中に入れる際に、タイヤの内部の空気を容易にかつ確実に排出させることができるため、水圧試験の精度を高める上で有利となる。 According to the water pressure test apparatus and the water pressure test method of the present invention, the upper and lower bead portions of the tire are water-tightly attached by the lower tire holding portion and the upper tire holding portion in water, and the internal pressure of the tire is increased in that state. Therefore, the internal pressure of the tire when the tire is destroyed is detected.
Therefore, in the tire water pressure test, it is only necessary to put the tire alone in and out of the water tank without attaching a heavy dedicated tire wheel to the tire, which is advantageous in reducing work and improving workability. It becomes.
Further, when the tire alone is put in water, the air inside the tire can be easily and reliably discharged, which is advantageous in increasing the accuracy of the water pressure test.

本実施の形態に係るタイヤ水圧試験装置１０の構成を示す説明図である。It is explanatory drawing which shows the structure of the tire water pressure test apparatus 10 which concerns on this Embodiment. 上側タイヤ保持部１６が装着位置に位置した状態を示す説明図である。It is explanatory drawing which shows the state which the upper side tire holding | maintenance part 16 was located in the mounting position. 上側タイヤ保持部１６が退避位置に位置した状態を示す説明図である。It is explanatory drawing which shows the state which the upper side tire holding | maintenance part 16 was located in the retracted position. （Ａ）１つのノズル２００２が設けられている場合の水流４８Ａを説明する説明図、（Ｂ）複数のノズル２００２が設けられている場合の水流４８Ｂを説明する説明図である。(A) It is explanatory drawing explaining the water flow 48A in case the one nozzle 2002 is provided, (B) It is explanatory drawing explaining the water flow 48B in case the some nozzle 2002 is provided.

次に本発明の実施の形態に係るタイヤ水圧試験装置１０をタイヤ水圧試験方法と共に図面を参照して説明する。
図１に示すように、タイヤ水圧試験装置１０は、水槽１２と、下側タイヤ保持部１４と、上側タイヤ保持部１６と、移動手段１８と、注入用管路２０と、ポンプ装置２２と、水圧検出器２４などを含んで構成されている。 Next, a tire water pressure test apparatus 10 according to an embodiment of the present invention will be described together with a tire water pressure test method with reference to the drawings.
As shown in FIG. 1, the tire water pressure test apparatus 10 includes a water tank 12, a lower tire holding part 14, an upper tire holding part 16, a moving means 18, an injection pipeline 20, a pump device 22, A water pressure detector 24 and the like are included.

水槽１２は、底壁１２０２と底壁１２０２の周囲から起立する側壁１２０４からなり内部に水が収容されるものである。
側壁１２０４には、水槽１２の外部に設けられた水供給源２６から水槽１２内に水を供給する給水用管路２８が接続されている。 The water tank 12 includes a bottom wall 1202 and a side wall 1204 that rises from the periphery of the bottom wall 1202, and contains water therein.
A water supply conduit 28 for supplying water into the water tank 12 from a water supply source 26 provided outside the water tank 12 is connected to the side wall 1204.

下側タイヤ保持部１４は、底壁１２０２に配置され、水槽１２に収容された水中において、タイヤ回転軸を上下に向けたタイヤ２の２つのビード部２０２のうち下側に位置するビード部２０２に水密に装着可能に構成されている。
下側タイヤ保持部１４は、下側タイヤ装着部３０と、底壁１２０２から起立し上部で下側装着部３０を支持する下部フレーム３２とを含んで構成されている。
図２に示すように、下側タイヤ装着部３０は、タイヤ２のビード部２０２のビードベース部２０４の全周が当接される下側円筒面３００２と、下側円筒面３００２の周囲で下側円筒面３００２と交差する方向に延在しビード部２０２のクリンチ部２０６の全周が当接される下側環状面３００４とを有し、下側円筒面３００２が下側環状面３００４の中央から上方に突出している。 The lower tire holding portion 14 is disposed on the bottom wall 1202 and is located below the two bead portions 202 of the tire 2 with the tire rotation axis facing up and down in the water accommodated in the water tank 12. It is configured so that it can be mounted in a watertight manner.
The lower tire holding portion 14 includes a lower tire mounting portion 30 and a lower frame 32 that stands from the bottom wall 1202 and supports the lower mounting portion 30 at the upper portion.
As shown in FIG. 2, the lower tire mounting portion 30 includes a lower cylindrical surface 3002 on which the entire circumference of the bead base portion 204 of the bead portion 202 of the tire 2 abuts and a lower cylindrical surface 3002 around the lower cylindrical surface 3002. A lower annular surface 3004 that extends in a direction intersecting the side cylindrical surface 3002 and contacts the entire circumference of the clinch portion 206 of the bead portion 202, and the lower cylindrical surface 3002 is the center of the lower annular surface 3004. Projecting upward from

本実施の形態では、下側タイヤ保持部１４は、サイズの異なる複数種類のタイヤ２のビード部２０２に装着される複数種類の下側タイヤ装着部３０を有している。
複数種類の下側タイヤ装着部３０は、直径の異なる複数の第１、第２、第３、第４下側円筒面３００２Ａ、３００２Ｂ、３００２Ｃ、３００２Ｄが、直径が小さくなるにつれて上方に位置するように同軸上で上下に並べられて構成されている。
直径の異なる下側円筒面３００２の境の箇所は、直径の小さい下側円筒面３００２を構成要素とする下側タイヤ装着部３０の第２、第３、第４下側環状面３００４Ｂ、３００４Ｃ、３００４Ｄとして構成されている。
本実施の形態では、第１下側円筒面３００２Ａの下部に、この第１下側円筒面３００２Ａよりも大きな直径の第１下側環状面３００４Ａが設けられている。
すなわち、本実施の形態では、下側タイヤ保持部１４は、第１乃至第４下側円筒面３００２Ａ、３００２Ｂ、３００２Ｃ、３００２Ｄと、第１乃至第４下側環状面３００４Ａ、３００４Ｂ、３００４Ｃ、３００４Ｄとからなる第１乃至第４下側タイヤ装着部３０Ａ、３０Ｂ、３０Ｃ、３０Ｄが下方から上方に向かって並べられて構成されている。 In the present embodiment, the lower tire holding portion 14 has a plurality of types of lower tire mounting portions 30 that are mounted on the bead portions 202 of the plurality of types of tires 2 having different sizes.
The plurality of types of lower tire mounting portions 30 are arranged such that a plurality of first, second, third, and fourth lower cylindrical surfaces 3002A, 3002B, 3002C, and 3002D having different diameters are positioned upward as the diameter decreases. Are arranged vertically on the same axis.
The locations of the boundaries between the lower cylindrical surfaces 3002 having different diameters are the second, third, and fourth lower annular surfaces 3004B, 3004C of the lower tire mounting portion 30 having the lower cylindrical surface 3002 having a small diameter as a constituent element. It is configured as 3004D.
In the present embodiment, a first lower annular surface 3004A having a diameter larger than that of the first lower cylindrical surface 3002A is provided below the first lower cylindrical surface 3002A.
That is, in the present embodiment, the lower tire holding portion 14 includes the first to fourth lower cylindrical surfaces 3002A, 3002B, 3002C, 3002D and the first to fourth lower annular surfaces 3004A, 3004B, 3004C, 3004D. 1st thru | or 4th lower tire mounting part 30A, 30B, 30C, 30D which consists of these are arranged from the downward toward the upper part.

上側タイヤ保持部１６は、下側タイヤ保持部１４の上方に配置され、収容された水中において、タイヤ２の２つのビード部２０２のうち上側に位置するビード部２０２に水密に装着可能に構成されている。
上側タイヤ保持部１６は、上側タイヤ装着部３４と、上側装着部３４に設けられ後述するピストンロッド４２に取り付けられる取り付け部３６とを含んで構成されている。
上側側タイヤ装着部３４は、下側円筒面３００２と同軸上でタイヤ２のビード部２０２のビードベース部２０４の全周が当接される上側円筒面３４０２と、上側円筒面３４０２の周囲で上側円筒面３４０２と交差する方向に延在しビード部２０２のクリンチ部２０６の全周が当接される上側環状面３４０４とを有し、上側円筒面３４０２が上側環状面３４０４の中央から下方に突出している。 The upper tire holding portion 16 is disposed above the lower tire holding portion 14 and is configured to be watertightly mountable on the bead portion 202 located on the upper side of the two bead portions 202 of the tire 2 in the contained water. ing.
The upper tire holding portion 16 includes an upper tire mounting portion 34 and a mounting portion 36 provided on the upper mounting portion 34 and attached to a piston rod 42 described later.
The upper tire mounting portion 34 is coaxial with the lower cylindrical surface 3002, and has an upper cylindrical surface 3402 that contacts the entire circumference of the bead base portion 204 of the bead portion 202 of the tire 2, and an upper side around the upper cylindrical surface 3402. An upper annular surface 3404 extending in a direction intersecting with the cylindrical surface 3402 and contacting the entire circumference of the clinch portion 206 of the bead portion 202, and the upper cylindrical surface 3402 protrudes downward from the center of the upper annular surface 3404. ing.

本実施の形態では、上側タイヤ保持部１６は、直径の異なる複数の第１、第２、第３、第４上側円筒面３４０２Ａ、３４０２Ｂ、３４０２Ｃ、３４０２Ｄが、直径が小さくなるにつれて下方に位置するように同軸上で上下に並べられて構成されている。
直径の異なる上側円筒面３４０２の境の箇所は、直径の小さい上側円筒面３４０２を構成要素とする上側タイヤ装着部３４の第２、第３、第４上側環状面３４０４Ｂ、３４０４Ｃ、３４０４Ｄとして構成されている。
本実施の形態では、第１上側円筒面３４０２Ａの上部に、この第１上側円筒面３４０２Ａよりも大きな直径の第１上側環状面３４０４Ａが設けられている。
この第１上側環状面３４０４Ａを構成する部材に上記の取り付け部３６が連結されている。
すなわち、本実施の形態では、上側タイヤ保持部１６は、第１乃至第４上側円筒面３４０２Ａ、３４０２Ｂ、３４０２Ｃ、３４０２Ｄと、第１乃至第４上側環状面３４０４Ａ、３４０４Ｂ、３４０４Ｃ、３４０４Ｄとからなる第１乃至第４上側タイヤ装着部３４Ａ、３４Ｂ、３４Ｃ、３４Ｄが上方から下方に向かって並べられて構成されている。 In the present embodiment, the upper tire holding portion 16 is positioned such that the plurality of first, second, third, and fourth upper cylindrical surfaces 3402A, 3402B, 3402C, and 3402D having different diameters are positioned downward as the diameter decreases. In this way, they are arranged on the same axis and arranged vertically.
The boundaries between the upper cylindrical surfaces 3402 having different diameters are configured as second, third, and fourth upper annular surfaces 3404B, 3404C, and 3404D of the upper tire mounting portion 34 having the upper cylindrical surface 3402 having a small diameter as a constituent element. ing.
In the present embodiment, a first upper annular surface 3404A having a diameter larger than that of the first upper cylindrical surface 3402A is provided above the first upper cylindrical surface 3402A.
The mounting portion 36 is connected to a member constituting the first upper annular surface 3404A.
That is, in the present embodiment, the upper tire holding portion 16 includes first to fourth upper cylindrical surfaces 3402A, 3402B, 3402C, 3402D and first to fourth upper annular surfaces 3404A, 3404B, 3404C, 3404D. 1st thru | or 4th upper tire mounting part 34A, 34B, 34C, 34D is arranged from the upper direction toward the downward direction, and is comprised.

移動手段１８は、上側タイヤ保持部１６を、図２に示す装着位置と、図３に示す退避位置との間で昇降させるものである。
図２に示すように、装着位置は、水中において下側タイヤ保持部１４に下側のビード部２０２が装着され、かつ、水中において上側タイヤ保持部１６に上側のビード部２０２が装着される位置である。
図３に示すように、退避位置は、上側タイヤ保持部１６が上側のビード部２０２から離間した位置である。
本実施の形態では、図１に示すように、移動手段１８は、水槽１２の側壁１２０４上部に設けられたフレーム３８と、このフレーム３８に取着された昇降機構４０とを含んで構成されている。
昇降機構４０は、例えば、ピストンロッド４２を鉛直下方に向けて設けられた油圧シリンダ４４で構成され、ピストンロッド４２の下端が前記の取り付け部３６を介して上側タイヤ保持部１６に連結されている。
そして、油圧シリンダ４４に対して図示しない油圧源から油圧を供給することでピストンロッド４２が昇降する。 The moving means 18 moves the upper tire holding portion 16 up and down between the mounting position shown in FIG. 2 and the retracted position shown in FIG.
As shown in FIG. 2, the mounting position is a position where the lower bead portion 202 is mounted on the lower tire holding portion 14 in water and the upper bead portion 202 is mounted on the upper tire holding portion 16 in water. It is.
As shown in FIG. 3, the retracted position is a position where the upper tire holding portion 16 is separated from the upper bead portion 202.
In the present embodiment, as shown in FIG. 1, the moving means 18 includes a frame 38 provided on the side wall 1204 of the water tank 12 and an elevating mechanism 40 attached to the frame 38. Yes.
The elevating mechanism 40 is constituted by, for example, a hydraulic cylinder 44 provided with a piston rod 42 directed vertically downward, and the lower end of the piston rod 42 is connected to the upper tire holding unit 16 via the mounting portion 36. .
The piston rod 42 moves up and down by supplying hydraulic pressure to the hydraulic cylinder 44 from a hydraulic source (not shown).

注入用管路２０は、図１に示すように、後述するポンプ装置２２に連結され、ポンプ装置２２の吐出口から水槽１２内部を通り、下部フレーム３２の内側を通って下側タイヤ保持部１４の上方まで設けられており、注入用管路２０の先端のノズル２００２は、下側タイヤ保持部１４に装着されたタイヤ２の内面４６に向けられている。   As shown in FIG. 1, the injection conduit 20 is connected to a pump device 22, which will be described later, passes from the discharge port of the pump device 22 through the water tank 12, passes through the inside of the lower frame 32, and the lower tire holding portion 14. The nozzle 2002 at the tip of the injection conduit 20 is directed to the inner surface 46 of the tire 2 attached to the lower tire holding portion 14.

ポンプ装置２２は、図１に示すように、水供給源２６から供給される水を加圧して注入用管路２０に供給するものである。
すなわち、本実施の形態では、注入用管路２０およびポンプ装置２２によって、タイヤ２の内面４６と、下側タイヤ保持部１４と、上側タイヤ保持部１６とによって囲まれた空間に水を注入することでタイヤ２の内圧を上昇させる注入手段が構成されている。 As shown in FIG. 1, the pump device 22 pressurizes water supplied from a water supply source 26 and supplies the pressurized water to the injection conduit 20.
That is, in the present embodiment, water is injected into the space surrounded by the inner surface 46 of the tire 2, the lower tire holding portion 14, and the upper tire holding portion 16 by the injection pipe 20 and the pump device 22. Thus, injection means for increasing the internal pressure of the tire 2 is configured.

水圧検出器２４は、タイヤ２が破壊されたときのタイヤ２の内圧を検出する内圧検出手段を構成するものであり、本実施の形態では、図１に示すように、ポンプ装置２２に設けられている。
具体的には、水圧検出器２４は、ポンプ装置２２によって加圧される水の水圧をタイヤ２の内圧として検出するものであり、タイヤ２の内圧のピーク値を保持（ホールド）する、いわゆるピークホールド機能を備えている。
すなわち、水圧検出器２４によって保持された水圧のピーク値が、タイヤ２破壊時のタイヤ２の内圧として検出される。
なお、水圧検出器２４は、タイヤ２の内面４６と、下側タイヤ保持部１４と、上側タイヤ保持部１６とによって囲まれた空間に設置してもよいが、本実施の形態のようにすると、水圧検出器２４を前記の空間に設置する作業が不要となり、作業効率を高める上で有利となる。 The water pressure detector 24 constitutes an internal pressure detecting means for detecting the internal pressure of the tire 2 when the tire 2 is destroyed. In the present embodiment, the water pressure detector 24 is provided in the pump device 22 as shown in FIG. ing.
Specifically, the water pressure detector 24 detects the water pressure of water pressurized by the pump device 22 as the internal pressure of the tire 2, and holds a peak value of the internal pressure of the tire 2 so-called peak. Has a hold function.
That is, the peak value of the water pressure held by the water pressure detector 24 is detected as the internal pressure of the tire 2 when the tire 2 is broken.
The water pressure detector 24 may be installed in a space surrounded by the inner surface 46 of the tire 2, the lower tire holding portion 14, and the upper tire holding portion 16, but as in the present embodiment. The operation of installing the water pressure detector 24 in the space is not necessary, which is advantageous in improving work efficiency.

次に、タイヤ水圧試験装置１０を用いたタイヤ水圧試験方法について説明する。
まず、上側タイヤ保持部１６を図３に示す退避位置に位置させた状態で、給水用管路２８を介して水槽１２内に水を供給し、図１に示すように、水槽１２内を水で満たす。
次いで、作業者は、水圧試験の対象となるタイヤ２を把持し、タイヤ２を水槽１２内に入れてタイヤ２を水没させ、タイヤ２の内側の空気を排出させる。
そして、作業者は、タイヤ回転軸を上下に向けた状態でタイヤ２を下側タイヤ保持部１４の上方から、例えば、第２下側タイヤ装着部３０Ｂに移動させ、タイヤ２の下側のビード部２０２のビードベース部２０４の内側に第２下側円筒面３００２Ｂを挿入すると共に、タイヤ２の下側のビード部２０２のクリンチ部２０６を第２下側環状面３００４Ｂに当て付ける。
これにより、下側のビード部２０２のビードベース部２０４の全周が第２下側円筒面３００２Ｂに当接すると共に、下側のビード部２０２のクリンチ部２０６の全周が第２下側環状面３００４Ｂに当接する。 Next, a tire water pressure test method using the tire water pressure test apparatus 10 will be described.
First, water is supplied into the water tank 12 through the water supply conduit 28 in a state where the upper tire holding portion 16 is positioned at the retracted position shown in FIG. 3, and as shown in FIG. Fill with.
Next, the operator holds the tire 2 to be subjected to the water pressure test, puts the tire 2 in the water tank 12, submerges the tire 2, and discharges the air inside the tire 2.
Then, the worker moves the tire 2 from above the lower tire holding portion 14 to the second lower tire mounting portion 30B, for example, with the tire rotation axis facing up and down, and the bead on the lower side of the tire 2 The second lower cylindrical surface 3002B is inserted inside the bead base portion 204 of the portion 202, and the clinch portion 206 of the lower bead portion 202 of the tire 2 is applied to the second lower annular surface 3004B.
As a result, the entire circumference of the bead base portion 204 of the lower bead portion 202 abuts on the second lower cylindrical surface 3002B, and the entire circumference of the clinch portion 206 of the lower bead portion 202 is the second lower annular surface. Abuts on 3004B.

次に、移動手段１８により上側タイヤ保持部１６を図２に示す装着位置に降下させ、タイヤ２の上側のビード部２０２を上側タイヤ装着部１６に当接させる。
すなわち、タイヤ２の上側のビード部２０２のビードベース部２０４の内側に第２上側装着部３４Ｂの第２上側円筒面３４０２Ｂを挿入すると共に、タイヤ２の下側のビード部２０２のクリンチ部２０６を第２上側環状面３４０４Ｂに当て付ける。
これにより、上側のビード部２０２のビードベース部２０４の全周が第２上側円筒面３４０２Ｂに当接すると共に、上側のビード部２０２のクリンチ部２０６の全周が第２上側環状面３４０４Ｂに当接する。 Next, the upper tire holding portion 16 is lowered to the mounting position shown in FIG. 2 by the moving means 18 and the upper bead portion 202 of the tire 2 is brought into contact with the upper tire mounting portion 16.
That is, the second upper cylindrical surface 3402B of the second upper mounting portion 34B is inserted inside the bead base portion 204 of the upper bead portion 202 of the tire 2 and the clinch portion 206 of the lower bead portion 202 of the tire 2 is inserted. It abuts on the second upper annular surface 3404B.
Accordingly, the entire circumference of the bead base portion 204 of the upper bead portion 202 abuts on the second upper cylindrical surface 3402B, and the entire circumference of the clinch portion 206 of the upper bead portion 202 abuts on the second upper annular surface 3404B. .

次に、ポンプ装置２２を動作させ、注入用管路２０を介して、タイヤ２の内面４６と、下側タイヤ保持部１４と、上側タイヤ保持部１６とによって囲まれた空間に水を注入し、タイヤ２の内圧を上昇させる。
これにより、タイヤ２の下側のビード部２０２のビードベース部２０４およびクリンチ部２０６が第２下側円筒面３００２Ｂおよび第２下側環状面３００４Ｂに押し付けられることで、下側のビード部２０２が第２下側タイヤ装着部３０Ｂに水密に装着された状態となる。
また、タイヤ２の上側のビード部２０２のビードベース部２０４およびクリンチ部２０６が第２上側円筒面３４０２Ｂおよび第２上側環状面３４０４Ｂに押し付けられることで、上側のビード部２０２が第２上側タイヤ装着部３４Ｂに水密に装着された状態となる。 Next, the pump device 22 is operated, and water is injected into the space surrounded by the inner surface 46 of the tire 2, the lower tire holding portion 14, and the upper tire holding portion 16 through the injection conduit 20. The internal pressure of the tire 2 is increased.
Accordingly, the bead base portion 204 and the clinch portion 206 of the lower bead portion 202 of the tire 2 are pressed against the second lower cylindrical surface 3002B and the second lower annular surface 3004B, so that the lower bead portion 202 is The second lower tire mounting portion 30 </ b> B is mounted in a watertight manner.
Further, the bead base portion 204 and the clinch portion 206 of the upper bead portion 202 of the tire 2 are pressed against the second upper cylindrical surface 3402B and the second upper annular surface 3404B, so that the upper bead portion 202 is mounted on the second upper tire. It will be in the state attached to the part 34B watertightly.

引き続きポンプ装置２２によって水が注入されることにより、タイヤ２の内圧が次第に上昇していき、やがて、タイヤ２が破壊されると、その時点でのタイヤ２の内圧が水圧検出器２４によって検出される。
この検出値がタイヤ２の水圧試験の試験結果を示すデータとして取得される。 By continuously injecting water by the pump device 22, the internal pressure of the tire 2 gradually increases. When the tire 2 is eventually destroyed, the internal pressure of the tire 2 at that time is detected by the water pressure detector 24. The
This detected value is acquired as data indicating the test result of the water pressure test of the tire 2.

以上説明したように、本実施の形態の水圧試験装置および方法によれば、水槽１２に収容された水にタイヤ２を入れ、水中において下側タイヤ保持部１４と上側タイヤ保持部１６とによってタイヤ２の上下のビード部２０２を水密に装着させ、その状態で、タイヤ２の内圧を上昇させて、タイヤ２が破壊されたときのタイヤ２の内圧を検出するようにした。
したがって、従来のように、重量が重い専用のホイールへのタイヤの着脱作業や、専用のホイールに装着されたタイヤ２を水槽１２に出し入れする必要が無く、タイヤ２単体を水槽１２に出し入れすればよいため、作業の軽減化が図れ、作業性の向上を図る上で有利となる。
また、タイヤ２単体を水中に入れる際に、タイヤ２の内部の空気を容易にかつ確実に排出させることができるため、タイヤ２内に残存する空気が、水圧検出器２４によって検出されるタイヤ２の内圧に与える影響を取り除くことができ、水圧試験の精度を高める上で有利となる。 As described above, according to the water pressure test apparatus and method of the present embodiment, the tire 2 is put into the water accommodated in the water tank 12, and the tire is formed by the lower tire holding portion 14 and the upper tire holding portion 16 in water. The upper and lower bead portions 202 of 2 are attached in a watertight manner, and in this state, the internal pressure of the tire 2 is increased to detect the internal pressure of the tire 2 when the tire 2 is broken.
Therefore, there is no need to attach / detach the tire to / from the water tank 12 as in the conventional case, and it is not necessary to put the tire 2 attached to the dedicated wheel into or out of the water tank 12. Therefore, the work can be reduced, which is advantageous in improving workability.
Further, when the tire 2 alone is put into water, the air inside the tire 2 can be easily and reliably discharged, so that the air remaining in the tire 2 is detected by the water pressure detector 24. The influence on the internal pressure can be removed, which is advantageous in increasing the accuracy of the water pressure test.

また、本実施の形態では、下側タイヤ保持部１４は、サイズの異なる複数種類のタイヤ２のビード部２０２に装着される複数種類の下側タイヤ装着部３０を有し、上側タイヤ保持部１６は、サイズの異なる複数種類のタイヤ２のビード部２０２に装着される複数種類の上側タイヤ装着部３４を有している。
そのため、サイズの異なる複数種類のタイヤ２の水圧試験を、特別な部材や作業を要することなく単一の試験装置で行え、コスト低減を図る上で有利となる。 Further, in the present embodiment, the lower tire holding portion 14 has a plurality of types of lower tire mounting portions 30 that are mounted on the bead portions 202 of the plurality of types of tires 2 having different sizes, and the upper tire holding portion 16. Has a plurality of types of upper tire mounting portions 34 that are mounted on the bead portions 202 of a plurality of types of tires 2 having different sizes.
Therefore, it is possible to perform a hydraulic pressure test on a plurality of types of tires 2 having different sizes with a single test apparatus without requiring any special member or work, which is advantageous for cost reduction.

なお、図３、図４（Ａ）に示すように、水中においてタイヤ２の下側のビード部２０２が下側タイヤ装着部３０に装着され、かつ、上側タイヤ保持部１６が退避位置に位置した状態で、短時間ポンプ装置２２を動作させ、注入用管路２０の先端のノズル２００２から、下側タイヤ保持部１４に装着されたタイヤ２のトレッド部の内側に位置する内周面４６Ａに斜めに向けて水を吐出させ、この水によりタイヤ２の内周面４６Ａに沿って流れる水流４８Ａを発生させ、タイヤ２の内部に残存する空気をタイヤ２の外部に排出するようにしてもよい。
このようにすると、仮にタイヤ２の内部に空気が残存していたとしても、その残存する空気をタイヤ２の外方に排出させる上で有利となり、水圧試験の精度を高める上で有利となる。 3 and 4A, the lower bead portion 202 of the tire 2 is mounted on the lower tire mounting portion 30 and the upper tire holding portion 16 is positioned at the retracted position in water. In this state, the pump device 22 is operated for a short time, and the nozzle 2002 at the tip of the injection pipe 20 is slanted on the inner peripheral surface 46A located inside the tread portion of the tire 2 attached to the lower tire holding portion 14. The water may be discharged toward the vehicle, the water flow 48A flowing along the inner peripheral surface 46A of the tire 2 may be generated by the water, and the air remaining inside the tire 2 may be discharged to the outside of the tire 2.
If it does in this way, even if air remains in the inside of the tire 2, it will be advantageous in discharging the remaining air to the outside of the tire 2, and it will be advantageous in improving the accuracy of the water pressure test.

また、図３、図４（Ａ）では、注入用管路２０の先端のノズル２００２が１つ設けられている場合を示したが、図４（Ｂ）に示すように、注入用管路２０に接続する複数のノズル２００２を設け、それら複数のノズル２００２をタイヤ２の回転軸を中心として放射状に配置し、各ノズル２００２から水を吐出させ、それらの水によりタイヤ２の内周面４６Ａに沿って流れる水流４８Ｂを発生させ、タイヤ２の内部に残存する空気をタイヤの外部に排出するようにしてもよい。
この場合は、各ノズル２００２から、タイヤ２の内周面４６Ａの全周にわたって満遍なく水流（乱流）４８Ｂが発生するため、タイヤ２の内部に残存する空気をより迅速かつ確実に排出させる上で有利となる。 3 and 4A show the case where one nozzle 2002 is provided at the tip of the injection conduit 20, but as shown in FIG. 4B, the injection conduit 20 is provided. A plurality of nozzles 2002 connected to each other are provided, the nozzles 2002 are arranged radially around the rotation axis of the tire 2, water is discharged from each nozzle 2002, and the water causes the inner peripheral surface 46 </ b> A of the tire 2 to be discharged. A water flow 48B flowing along the tire may be generated so that air remaining inside the tire 2 is discharged to the outside of the tire.
In this case, since the water flow (turbulent flow) 48B is uniformly generated from each nozzle 2002 over the entire circumference of the inner peripheral surface 46A of the tire 2, the air remaining in the tire 2 can be discharged more quickly and reliably. It will be advantageous.

２……タイヤ、２０２……ビード部、２０４……ビードベース部、２０６……クリンチ部、１０……タイヤ水圧試験装置、１２……水槽、１２０２……底壁、１２０４……側壁、１４……下側タイヤ保持部、１６……上側タイヤ保持部、１８……移動手段、２０……注水用管路（水注入手段）、２２……ポンプ手段（水注入手段）、２４……水圧検出器（内圧検出手段）、３０……下側タイヤ装着部、３００２……下側円筒面、３００４……下側環状面、３４……上側タイヤ装着部、３４０２……上側円筒面、３４０４……上側環状面、４６……タイヤの内面、４６Ａ……タイヤの内周面、４８Ａ，４８Ｂ……水流。   2 ... Tire, 202 ... Bead part, 204 ... Bead base part, 206 ... Clinch part, 10 ... Tire pressure test device, 12 ... Water tank, 1202 ... Bottom wall, 1204 ... Side wall, 14 ... ... Lower tire holder, 16 ... Upper tire holder, 18 ... Moving means, 20 ... Water injection pipe (water injection means), 22 ... Pump means (water injection means), 24 ... Water pressure detection Vessel (internal pressure detecting means), 30 ... lower tire mounting portion, 3002 ... lower cylindrical surface, 3004 ... lower annular surface, 34 ... upper tire mounting portion, 3402 ... upper cylindrical surface, 3404 ... Upper annular surface, 46: inner surface of tire, 46A: inner peripheral surface of tire, 48A, 48B: water flow.

Claims (5)

底壁と前記底壁の周囲から起立する側壁からなり内部に水が収容される水槽と、
前記底壁に配置され、前記収容された水中において、タイヤ回転軸を上下に向けたタイヤの２つのビード部のうち下側に位置するビード部に水密に装着可能な下側タイヤ保持部と、
前記下側タイヤ保持部の上方に配置され、前記収容された水中において、前記タイヤの２つのビード部のうち上側に位置するビード部に水密に装着可能な上側タイヤ保持部と、
前記水中において前記下側タイヤ保持部に前記下側のビード部が装着され、かつ、前記水中において前記上側タイヤ保持部に前記下側のビード部が装着される装着位置と、前記上側タイヤ保持部が前記上側のビード部から離間した退避位置との間で前記上側タイヤ保持部を昇降させる移動手段と、
前記上側タイヤ保持部が前記装着位置に位置した状態で、前記タイヤの内面と、前記下側タイヤ保持部と、前記上側タイヤ保持部とによって囲まれた空間に水を注入することでタイヤの内圧を上昇させる水注入手段と、
前記タイヤが破壊されたときの前記タイヤの内圧を検出する内圧検出手段とを備え、
前記水注入手段は、前記空間に水を注入する放射状に配置された複数のノズルを備え、
前記複数のノズルは、それら複数のノズルから水を吐出させ、それらの水により前記タイヤの内周面に沿って流れる水流を発生させるように設けられている、
ことを特徴とするタイヤ水圧試験装置。 A water tank consisting of a bottom wall and a side wall standing from the periphery of the bottom wall and containing water therein;
A lower tire holding portion that is disposed on the bottom wall and is watertightly mountable on a bead portion positioned on the lower side of two bead portions of the tire with the tire rotation axis facing up and down in the contained water;
An upper tire holding portion that is disposed above the lower tire holding portion and can be watertightly attached to a bead portion located on the upper side of the two bead portions of the tire in the stored water;
A mounting position where the lower bead portion is attached to the lower tire holding portion in the water, and the lower bead portion is attached to the upper tire holding portion in the water; and the upper tire holding portion A moving means for raising and lowering the upper tire holding portion between a retreat position separated from the upper bead portion,
With the upper tire holding portion positioned at the mounting position, water is injected into a space surrounded by the inner surface of the tire, the lower tire holding portion, and the upper tire holding portion to thereby increase the internal pressure of the tire. Water injection means to raise the
An internal pressure detecting means for detecting an internal pressure of the tire when the tire is destroyed,
The water injection means includes a plurality of nozzles arranged radially to inject water into the space,
The plurality of nozzles are provided to discharge water from the plurality of nozzles and generate a water flow that flows along the inner peripheral surface of the tire by the water.
A tire water pressure test apparatus characterized by that. 前記下側タイヤ保持部は、タイヤのビード部のビードベース部の全周が当接される下側円筒面と、前記下側円筒面の周囲で前記下側円筒面と交差する方向に延在しビード部のクリンチ部の全周が当接される下側環状面とを有し、前記下側円筒面が前記下側環状面の中央から上方に突出する下側タイヤ装着部を含んで構成され、
前記上側タイヤ保持部は、前記下側円筒面と同軸上でタイヤのビード部のビードベース部の全周が当接される上側円筒面と、前記上側円筒面の周囲で前記上側円筒面と交差する方向に延在しビード部のクリンチ部の全周が当接される上側環状面とを有し、前記上側円筒面が前記上側環状面の中央から下方に突出する上側タイヤ装着部を含んで構成されている、
ことを特徴とする請求項１記載のタイヤ水圧試験装置。 The lower tire holding portion extends in a direction intersecting the lower cylindrical surface around the lower cylindrical surface, and a lower cylindrical surface with which the entire circumference of the bead base portion of the bead portion of the tire abuts A lower annular surface with which the entire circumference of the clinch portion of the bead portion abuts, and the lower cylindrical surface includes a lower tire mounting portion that protrudes upward from the center of the lower annular surface And
The upper tire holding portion intersects the upper cylindrical surface around the upper cylindrical surface, and an upper cylindrical surface on which the entire circumference of the bead base portion of the tire bead is in contact with the lower cylindrical surface. An upper annular surface that extends in a direction to which the entire circumference of the clinch portion of the bead portion abuts, and the upper cylindrical surface includes an upper tire mounting portion that protrudes downward from the center of the upper annular surface. It is configured,
The tire water pressure test apparatus according to claim 1 . 前記下側タイヤ保持部は、サイズの異なる複数種類のタイヤのビード部に装着される複数種類の下側タイヤ装着部を有し、
前記複数種類の下側タイヤ装着部は、直径の異なる複数の前記下側円筒面が、直径が小さくなるにつれて上方に位置するように同軸上で上下に並べられて構成され、
前記直径の異なる前記下側円筒面の境の箇所は、直径の小さい前記下側円筒面を構成要素とする前記下側タイヤ装着部の前記下側環状面として構成され、
前記上側タイヤ保持部は、サイズの異なる複数種類のタイヤのビード部に装着される複数種類の上側タイヤ装着部を有し、
前記複数種類の上側タイヤ装着部は、直径の異なる複数の前記上側円筒面が、直径が小さくなるにつれて下方に位置するように同軸上で上下に並べられて構成され、
前記直径の異なる前記上側円筒面の境の箇所は、直径の小さい前記上側円筒面を構成要素とする前記上側タイヤ装着部の前記上側環状面として構成されている、
ことを特徴とする請求項２記載のタイヤ水圧試験装置。 The lower tire holding portion has a plurality of types of lower tire mounting portions mounted on bead portions of a plurality of types of tires having different sizes,
The plurality of types of lower tire mounting portions are configured such that a plurality of lower cylindrical surfaces having different diameters are arranged vertically on the same axis so as to be positioned upward as the diameter decreases,
The location of the boundary between the lower cylindrical surfaces with different diameters is configured as the lower annular surface of the lower tire mounting portion having the lower cylindrical surface with a small diameter as a component,
The upper tire holding portion has a plurality of types of upper tire mounting portions mounted on bead portions of a plurality of types of tires having different sizes,
The plurality of types of upper tire mounting portions are configured such that the plurality of upper cylindrical surfaces having different diameters are arranged vertically on the same axis so as to be positioned downward as the diameter decreases,
The boundary portion of the upper cylindrical surface having a different diameter is configured as the upper annular surface of the upper tire mounting portion having the upper cylindrical surface having a small diameter as a component.
The tire hydraulic pressure testing device according to claim 2 . タイヤ回転軸を上下に向けたタイヤの２つのビード部のうち下側に位置するビード部に水密に装着可能な下側タイヤ保持部と、
前記下側タイヤ保持部の上方に配置され、前記タイヤの２つのビード部のうち上側に位置するビード部に水密に装着可能な上側タイヤ保持部とを水中に設け、
前記水中において前記下側タイヤ保持部に前記下側のビード部を装着し、かつ、前記上側タイヤ保持部に前記下側のビード部を装着し、
このような状態で、前記タイヤの内面と、前記下側タイヤ保持部と、前記上側タイヤ保持部とによって囲まれた空間に水を注入することでタイヤの内圧を上昇させ、
前記タイヤが破壊されたときの前記タイヤの内圧を検出し、
前記水の注入を管路により行い、
前記水中において前記下側タイヤ保持部に前記下側のビード部を装着し、かつ、前記上側タイヤ保持部に前記下側のビード部を装着する前に、前記管路の先端から水を吐出させ、この水により前記タイヤの内周面に沿って流れる水流を発生させ、前記タイヤの内部に残存する空気を前記タイヤの外部に排出するようにした、
ことを特徴とするタイヤ水圧試験方法。 A lower tire holding portion that can be water-tightly attached to a bead portion located on the lower side of two bead portions of a tire with a tire rotation axis facing up and down;
An upper tire holding part that is disposed above the lower tire holding part and is watertightly mountable on a bead part located on the upper side of the two bead parts of the tire is provided in water.
Attach the lower bead part to the lower tire holding part in the water, and attach the lower bead part to the upper tire holding part,
In such a state, the inner pressure of the tire is increased by injecting water into the space surrounded by the inner surface of the tire, the lower tire holding portion, and the upper tire holding portion,
Detecting the internal pressure of the tire when the tire is destroyed,
Injecting the water through a conduit,
Before the lower bead portion is attached to the lower tire holding portion and the lower bead portion is attached to the upper tire holding portion in the water, water is discharged from the tip of the conduit. The water flow that flows along the inner peripheral surface of the tire is generated by this water, and the air remaining inside the tire is discharged to the outside of the tire.
Tire pressure test method characterized by the above. タイヤ回転軸を上下に向けたタイヤの２つのビード部のうち下側に位置するビード部に水密に装着可能な下側タイヤ保持部と、
前記下側タイヤ保持部の上方に配置され、前記タイヤの２つのビード部のうち上側に位置するビード部に水密に装着可能な上側タイヤ保持部とを水中に設け、
前記水中において前記下側タイヤ保持部に前記下側のビード部を装着し、かつ、前記上側タイヤ保持部に前記下側のビード部を装着し、
このような状態で、前記タイヤの内面と、前記下側タイヤ保持部と、前記上側タイヤ保持部とによって囲まれた空間に水を注入することでタイヤの内圧を上昇させ、
前記タイヤが破壊されたときの前記タイヤの内圧を検出し、
前記水の注入を、放射状に配置された複数のノズルにより行い、
前記水中において前記下側タイヤ保持部に前記下側のビード部を装着し、かつ、前記上側タイヤ保持部に前記下側のビード部を装着する前に、前記複数のノズルから水を吐出させ、それらの水により前記タイヤの内周面に沿って流れる水流を発生させ、前記タイヤの内部に残存する空気を前記タイヤの外部に排出するようにした、
ことを特徴とするタイヤ水圧試験方法。 A lower tire holding portion that can be water-tightly attached to a bead portion located on the lower side of two bead portions of a tire with a tire rotation axis facing up and down;
An upper tire holding part that is disposed above the lower tire holding part and is watertightly mountable on a bead part located on the upper side of the two bead parts of the tire is provided in water.
Attach the lower bead part to the lower tire holding part in the water, and attach the lower bead part to the upper tire holding part,
In such a state, the inner pressure of the tire is increased by injecting water into the space surrounded by the inner surface of the tire, the lower tire holding portion, and the upper tire holding portion,
Detecting the internal pressure of the tire when the tire is destroyed,
Injecting the water with a plurality of nozzles arranged radially,
Attach the lower bead part to the lower tire holding part in the water, and discharge water from the plurality of nozzles before attaching the lower bead part to the upper tire holding part, A water flow that flows along the inner peripheral surface of the tire is generated by the water, and the air remaining inside the tire is discharged to the outside of the tire.
Tire pressure test method characterized by the above.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105628509A (en) * 2016-03-11 2016-06-01 中国电建集团北京勘测设计研究院有限公司 Internally reinforced crescent rib type steel bifurcation water pressure experimental monitoring system
CN106124137A (en) * 2016-08-27 2016-11-16 安徽阿莫斯泵业有限公司 A kind of part pressure testing device

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103900906B (en) * 2014-03-17 2016-01-20 河海大学 Pneumatosis model test apparatus and test method thereof under a kind of geomembrane
JP6657520B2 (en) * 2016-02-03 2020-03-04 株式会社神戸製鋼所 Tire air filling mechanism and tire air filling method of tire testing device
JP7439626B2 (en) 2020-04-06 2024-02-28 住友ゴム工業株式会社 Tire water pressure test method

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06127225A (en) * 1992-10-14 1994-05-10 Sumitomo Rubber Ind Ltd Tube valve for tire roller
JPH0684344U (en) * 1993-05-19 1994-12-02 株式会社ブリヂストン Multi-tiered rim
JP2597983Y2 (en) * 1993-10-19 1999-07-26 株式会社ブリヂストン Multi-stage rim
JP2000241304A (en) * 1999-02-19 2000-09-08 Sumitomo Rubber Ind Ltd Device for testing water pressure of tire
JP4057315B2 (en) * 2002-03-07 2008-03-05 株式会社ブリヂストン Tire durability test method
JP4085038B2 (en) * 2003-08-12 2008-04-30 株式会社フローム Non-water tank pressure test equipment for high pressure gas containers
JP4242846B2 (en) * 2005-02-03 2009-03-25 株式会社長浜製作所 Tire transport / holding device
JP4614799B2 (en) * 2005-03-16 2011-01-19 小野谷機工株式会社 Tire pressure test equipment
JP2007121042A (en) * 2005-10-26 2007-05-17 Kobe Steel Ltd Machine and method for testing tire

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105628509A (en) * 2016-03-11 2016-06-01 中国电建集团北京勘测设计研究院有限公司 Internally reinforced crescent rib type steel bifurcation water pressure experimental monitoring system
CN106124137A (en) * 2016-08-27 2016-11-16 安徽阿莫斯泵业有限公司 A kind of part pressure testing device

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