JPH02150742A - Dropping impact testing machine - Google Patents
Dropping impact testing machineInfo
- Publication number
- JPH02150742A JPH02150742A JP30481888A JP30481888A JPH02150742A JP H02150742 A JPH02150742 A JP H02150742A JP 30481888 A JP30481888 A JP 30481888A JP 30481888 A JP30481888 A JP 30481888A JP H02150742 A JPH02150742 A JP H02150742A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- impact
- impact force
- coil spring
- shock absorber
- 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.)
- Granted
Links
- 238000009863 impact test Methods 0.000 title description 4
- 230000035939 shock Effects 0.000 claims abstract description 27
- 239000006096 absorbing agent Substances 0.000 claims abstract description 19
- 238000012360 testing method Methods 0.000 claims description 25
- 239000000463 material Substances 0.000 abstract description 13
- 125000006850 spacer group Chemical group 0.000 abstract description 5
- 230000000386 athletic effect Effects 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 3
- 210000003141 lower extremity Anatomy 0.000 description 3
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 210000003423 ankle Anatomy 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 210000002683 foot Anatomy 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002747 voluntary effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
- A43D999/00—Subject matter not provided for in other groups of this subclass
Landscapes
- Force Measurement Appropriate To Specific Purposes (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、ランニングシューズの靴底の衝撃吸収性能
等を判定するときに使用する落下衝撃試験機に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a drop impact tester used for determining the impact absorption performance, etc. of the sole of a running shoe.
ランニングシューズ等の運動靴においては、特に、着地
時に踵部分に大きな衝撃力が加わるため、踵部分の靴底
素材の衝撃吸収性能は運動靴を製造する場合の重要なポ
イントになっている。In athletic shoes such as running shoes, a large impact force is particularly applied to the heel portion when landing, so the shock absorption performance of the sole material of the heel portion is an important point when manufacturing athletic shoes.
ところで、従来、靴底素材の衝撃吸収性能の判定には、
打撃子とウェイトからなる衝撃付与体を、スポンジ等の
靴底素材によって形成した試験体に落下させ、その際に
打撃子が受ける衝撃力を測定する落下衝撃試験機が使用
されている。By the way, conventionally, to judge the shock absorption performance of shoe sole materials,
A drop impact tester is used in which an impact applying body consisting of a striker and a weight is dropped onto a test specimen made of a shoe sole material such as sponge, and the impact force received by the striker at this time is measured.
ところが、上記のように、打撃子とウェイトからなる衝
撃付与体を、試験体である靴底素材に落下させた場合と
、実際に人が運動靴を履いて走った場合とでは、靴底素
材への衝撃力の加わり方が大きく相違する。However, as mentioned above, when an impact-applying body consisting of a striker and a weight is dropped onto the shoe sole material that is the test specimen, and when a person actually runs wearing athletic shoes, the difference in the sole material There is a big difference in how the impact force is applied.
即ち、実際に人が運動靴を履いて走った場合、靴底には
人の体重による衝撃力が加わるが、人の足には膝や足首
等関節による緩衝部があるので、靴底には衝撃力が比較
的にゆっくりと時間をかけて加えられるが、上記の落下
衝撃試験機のように、単に剛体を落下させて衝撃力を加
えた場合には、試験体に衝撃力が瞬間的に加わる。実際
に人が運動靴を履いて走った場合、まず最初に踵部分に
約１０）１ｚの速さで衝撃力が加わるとされているのに
対し、単に剛体を落下させる従来の落下衝撃試験機では
約２１Ｈｚという約２倍の速さで衝撃力が加わることが
実験によってｔｉ認されている。In other words, when a person actually runs while wearing athletic shoes, the impact force due to the person's weight is applied to the sole of the shoe, but since the human foot has a cushioning section due to joints such as the knees and ankles, the sole of the shoe Impact force is applied relatively slowly over time, but when a rigid body is simply dropped and impact force is applied, as in the drop impact tester mentioned above, the impact force is applied to the test specimen instantaneously. join. When a person actually runs wearing athletic shoes, an impact force is first applied to the heel at a speed of approximately 10)1z, whereas conventional drop impact testers simply drop a rigid body. It has been confirmed through experiments that the impact force is applied at about twice the speed of about 21 Hz.
このため、従来の落下衝撃試験機によってウレタンやス
ポンジといった変形状態の大きい靴底素材の試験体に衝
撃を加えた場合、実際に人が運動靴を履いて走ったとき
に起こる靴底素材の変形状態と全く異なる変形状態が試
験体に起こる。For this reason, when a conventional drop impact tester applies an impact to a test piece made of a shoe sole material that is highly deformed, such as urethane or sponge, the deformation of the sole material that occurs when a person actually runs in athletic shoes. A deformation state that is completely different from the state occurs in the test specimen.
また、従来の落下衝撃試験機のように単に剛体を落下さ
せて試験体に瞬時に衝撃力を加える場合には、打撃子の
ウェイトを人の体重よりもかなり軽くしないと、衝撃力
が大きくなりすぎるので、これによっても試験体の変形
状態が実際の靴底の変形状態と大きく相違してしまう。In addition, when a rigid body is simply dropped and an impact force is instantly applied to the test specimen, as in a conventional drop impact tester, the impact force will be large unless the weight of the impactor is significantly lighter than the person's weight. Therefore, this also causes the deformed state of the test specimen to be greatly different from the deformed state of the actual shoe sole.
このようなことから従来の落下衝撃試験機による靴底素
材の衝撃吸収性能の判定は、実際に人が運動靴を履いて
走った場合における靴底の衝撃吸収性能と合致しないと
いう問題があった。For this reason, there was a problem in that the judgment of the shock absorption performance of shoe sole materials using conventional drop impact testing machines did not match the shock absorption performance of shoe soles when people actually ran in athletic shoes. .
そこで、この発明は、靴底素材等の試験体に、実際に人
が運動靴を履いて走った場合と同様な状態で、即ち、比
較的にゆっくりと時間をかけて衝撃力を付与することが
できる落下衝撃試験機を提供することを技術的課題とす
るものである。Therefore, the present invention aims to apply an impact force to a test specimen such as a shoe sole material in a state similar to when a person actually runs wearing athletic shoes, that is, relatively slowly over time. The technical objective is to provide a drop impact tester that can perform the following.
〔課題を解決するための手段］
上記の技術的課題を解決するために、この発明は、落下
衝撃状！ＳＪ機の衝撃付与体を構成する打撃子とウェイ
トとの間に緩衝部を介在させたのである。[Means for Solving the Problems] In order to solve the above technical problems, the present invention provides a solution to the problem of falling impact! A buffer section was interposed between the impactor and the weight that constitute the impact applying body of the SJ machine.
上記緩衝部としては、コイルばねと油圧緩衝器とを組合
せたものを使用することができる。As the buffer section, a combination of a coil spring and a hydraulic shock absorber can be used.
上記衝撃付与体を試験体に落下させた場合、衝撃付与体
のウェイトによる荷重は、緩衝部を介して試験体に伝達
されるので、試験体には衝撃力がゆっ（りと時間をかけ
て付与される。When the above-mentioned impact-applying body is dropped onto the test specimen, the load due to the weight of the impact-applying body is transmitted to the test specimen via the buffer, so that the impact force is slowly applied to the test specimen (over time). Granted.
次に、この発明の実施例を添付図面に基づいて説明する
。Next, embodiments of the present invention will be described based on the accompanying drawings.
落下衝撃試験機は、ウレタンやスポンジといった靴底素
材等の試験体１を押えて保持する保持装置２を上面に設
けた支持台３と、この支持台３の上面の試験体１に対し
て落下衝撃を加える打撃子４とウェイト５とからなる衝
撃付与体と、この衝撃付与体を上方に持ち上げて落下さ
せる落下装置と、衝撃付与体を試験体１に落下させた際
に打撃子４に加わる衝撃力を測定する測定装置とからな
り、この発明に係る落下衝撃試験機におりては、上記衝
撃付与体の打撃子４とウェイト５との間に、コイルばね
６と油圧緩衝器７とからなる緩衝部を介在させている。The drop impact tester consists of a support stand 3 equipped with a holding device 2 on the upper surface for holding and holding a test object 1 such as a shoe sole material such as urethane or sponge, and a drop impact tester on the test object 1 on the upper surface of this support stand 3. An impact applying body consisting of a striking member 4 that applies an impact and a weight 5, a dropping device that lifts the impact applying member upward and drops it, and a weight that is applied to the impact applying member 4 when the impact applying member is dropped onto the test specimen 1. In the drop impact tester according to the present invention, a coil spring 6 and a hydraulic shock absorber 7 are provided between the impactor 4 and the weight 5 of the impact applying body. A buffer section is interposed.
上記支持台３の上面には、左右に一対のガイドポール８
が立設されている。このガイドポール８には、上記コイ
ルばね６と油圧緩衝器７の取付枠９がガイドアーム１０
を介して摺動自在に取付けられている。また、このガイ
ドポール８には、上記取付枠９の上方にウェイト５がガ
イドアーム１１を介して摺動自在に取付けられている。On the upper surface of the support base 3, there are a pair of guide poles 8 on the left and right.
has been erected. A mounting frame 9 for the coil spring 6 and hydraulic shock absorber 7 is attached to the guide arm 10 on this guide pole 8.
It is slidably attached via the Further, a weight 5 is slidably attached to the guide pole 8 above the mounting frame 9 via a guide arm 11.
上記取付枠９は、上中下の３角板９ａ、９ｂ。The mounting frame 9 has upper, middle and lower triangular plates 9a and 9b.
９ｃと、この３角仮９ａ、９ｂ、９ｃの各コーナ部分に
挿通された軸棒１２とによって形成され、上方の３角板
９ａと中央の３角板日すとの間、および中央の３角板９
ｂと下方の３角板９ｃとの間に、それぞれ一対のコイル
ばね６と油圧緩衝器７がスペーサ枠１３．１４を介して
嵌められ、油圧緩衝器７の周囲にコイルばね６が設置さ
れている。9c and a shaft rod 12 inserted through each corner of these triangular temporary plates 9a, 9b, and 9c, and between the upper triangular plate 9a and the central triangular plate date, and the central three Square plate 9
A pair of coil springs 6 and a hydraulic shock absorber 7 are fitted between the spacer frame 13 and the lower triangular plate 9c, respectively, and the coil spring 6 is installed around the hydraulic shock absorber 7. There is.
上記下方の３角板９ｃの下面には、試験体１との間に打
撃子４が取付けられている。A striking element 4 is attached to the lower surface of the lower triangular plate 9c between it and the test specimen 1.
上記取付枠９の両側には、上記ウェイト５を、上方に持
ち上げて取付枠９の上方の３角板９ａの上面に落下させ
る落下装置のアーム１５が左右に一対設置されている。A pair of arms 15 of a dropping device are installed on both sides of the mounting frame 9 to lift the weight 5 upward and drop it onto the upper surface of the triangular plate 9a above the mounting frame 9.
このアーム１５は、取付枠９の両側に設置された上下一
対のスプロケット１６．１７に架は渡されたエンドレス
チェン１８に固定されている。そして、上記ウェイト５
の下部両側には、上記アーム１５がチェノ１８によって
上方へ回転してきた時に係合する保合突起１９が突設さ
れており、上記アーム１５と係合突起１９が保合した状
態でウェイト５は上方に持ち上げられ、第４図及び第５
図に示すように、アーム１５がさらに上方に回転して上
方のスプロケット１６の周りを回転し、アーム１５と係
合突起１９との係合状態が解除されると、ウェイト５が
取付枠Ｓの上方の３角板９ａの上面に落下するようにな
っている。上記一対のスプロケット１６．１７は、取付
枠９の後方に立設された支柱２０にブラケット２１．２
２を介して設置され、この支柱２０は上記支持台３の下
面には設けた昇降装置によって昇降自在になっている。This arm 15 is fixed to an endless chain 18 that is suspended between a pair of upper and lower sprockets 16 and 17 installed on both sides of the mounting frame 9. And the above weight 5
A retaining protrusion 19 is protruded from both sides of the lower part of the arm 15 to be engaged when the arm 15 is rotated upward by the chino 18. With the arm 15 and the engaging protrusion 19 engaged, the weight 5 is 4 and 5.
As shown in the figure, when the arm 15 further rotates upward and around the upper sprocket 16, and the engagement between the arm 15 and the engagement protrusion 19 is released, the weight 5 is attached to the mounting frame S. It is designed to fall onto the upper surface of the upper triangular plate 9a. The pair of sprockets 16 and 17 are attached to brackets 21 and 2 on a support post 20 erected behind the mounting frame 9.
2, and this support column 20 can be raised and lowered by a lifting device provided on the lower surface of the support base 3.
この昇降装置によって支柱２０を昇降させることによっ
て上記アーム１５とウェイトの係合突起１９との係合位
置が上下し、それによってウェイト５の上昇、落下のス
トロークを変化させることができる。上記昇降装置は、
回転ハンドル２３と、この回転ハンドル２３によって回
転する二本の螺子棒２６．２７と、この螺子棒２６．２
７に螺合して昇降する昇降テーブル２８とからなり、こ
の昇降テーブル２８に上記支柱２０の下端が一体に取付
けられている。By raising and lowering the column 20 using this lifting device, the engagement position between the arm 15 and the engagement protrusion 19 of the weight moves up and down, thereby making it possible to change the lifting and falling strokes of the weight 5. The above lifting device is
A rotating handle 23, two threaded bars 26.27 rotated by the rotating handle 23, and the threaded bars 26.2.
The lower end of the support column 20 is integrally attached to the elevating table 28 which is screwed into the elevating table 28 to be raised and lowered.
また、上記昇降テーブル２８には、上記一対のスプロケ
ット１６．１７に架は渡されたチェノ１８を駆動する駆
動装置２９が設置されている。Further, a drive device 29 is installed on the lifting table 28 to drive the chino 18, which is mounted on the pair of sprockets 16 and 17.
上記測定装置としては、例えば、荷重センサ３０を使用
することができ、この荷重センサ３０は打撃子４の中間
部分に取付けられている。また、支持台３には、試験体
１の変位量を測定するための変位センサ３２を取付けて
おくことが好ましい。As the measuring device, for example, a load sensor 30 can be used, and this load sensor 30 is attached to the middle portion of the striker 4. Further, it is preferable that a displacement sensor 32 for measuring the amount of displacement of the test object 1 is attached to the support stand 3.
上記のように緩衝部をコイルばね６と油圧緩衝器７の組
合せによって構成する場合、コイルばね６と油圧緩衝器
７の強さは、運動中における人の下肢の動きを分析し、
その下肢の動きと、そのときにかかる地面反力とから次
式によって決定することができる。When the shock absorber is configured by a combination of the coil spring 6 and the hydraulic shock absorber 7 as described above, the strength of the coil spring 6 and the hydraulic shock absorber 7 is determined by analyzing the movement of the person's lower limbs during exercise.
It can be determined by the following formula from the movement of the lower limb and the ground reaction force applied at that time.
ここで、ｋはコイルばね６の強さ、ηは油圧緩衝器７の
強さをそれぞれ示している。Here, k indicates the strength of the coil spring 6, and η indicates the strength of the hydraulic shock absorber 7, respectively.
上記の式から、例えば、ランニングの際のコイルばね６
と油圧緩衝器７の係数を求めると、ｋ＝２０００ｋｇ／
ｍ、 η＝２５００ｋｇ／ｓｅｃ／ｓ＋であった。この
場合ｋ、ηの値は、ランニングを分析し、その際の着地
衝撃から決定したものであるから、バレーボールのよう
に、アタック後の着地時のように、ランニングとは条件
が異なる場合には、その動きを分析し、それに合わせて
コイルばね６と油圧緩衝器７の強さを適宜変化させるよ
うにする。From the above equation, for example, the coil spring 6 when running
and the coefficient of the hydraulic shock absorber 7, k=2000kg/
m, η = 2500 kg/sec/s+. In this case, the values of k and η are determined by analyzing the running and from the landing impact, so when the conditions are different from running, such as when landing after an attack, as in volleyball, , the movement is analyzed and the strength of the coil spring 6 and hydraulic shock absorber 7 is changed accordingly.
次に、上記実施例の作用について説明する。Next, the operation of the above embodiment will be explained.
まず、緩衝部のコイルばね６と油圧緩衝器７の強さを、
各種の運動条件に応じた下肢の関節等の緩衝力とほぼ同
一の緩衝力が得られるように設定し、その後、ウェイト
５の落下ストロークとウェイト５の重さを適宜変化させ
て、各種の運動条件に合った衝撃力が試験体１に加わる
ように調整する。この際、ウェイト５の重さはほぼ人の
体重と同じ５０〜６０ｋｇにすることが望ましい。First, the strength of the coil spring 6 and hydraulic shock absorber 7 in the buffer section is
Settings are made so that the buffering force is approximately the same as that of the joints of the lower limbs according to various exercise conditions, and then the falling stroke of the weight 5 and the weight of the weight 5 are changed as appropriate to perform various exercises. Adjust so that an impact force that meets the conditions is applied to the test specimen 1. At this time, it is desirable that the weight 5 be 50 to 60 kg, which is approximately the same as a person's weight.
この後、第２図に示す状態から駆動装置２９を駆動させ
て、チェノ１８を回転させると、アーム１５が上昇し、
その後アーム１５がウェイト５の保合突起１９に係合し
てウェイト５が上昇し、アーム１５が、第４図に示す状
態からさらに上方に回転すると、アーム１５とウェイト
５との係合突起１９との係合状態が解かれ、これによっ
て上方に持ち上げられたウェイト５が、第５図に示すよ
うに、取付枠９の上方の３角板９ａ（７）上面に落下す
る。Thereafter, when the drive device 29 is driven to rotate the chino 18 from the state shown in FIG. 2, the arm 15 rises.
Thereafter, the arm 15 engages with the engagement protrusion 19 of the weight 5, causing the weight 5 to rise, and when the arm 15 further rotates upward from the state shown in FIG. 4, the engagement protrusion 19 between the arm 15 and the weight 5 The engagement with the mounting frame 9 is released, and the weight 5 lifted upward falls onto the upper surface of the triangular plate 9a (7) above the mounting frame 9, as shown in FIG.
この上方の３角板９ａの上面に落下したウェイト５の衝
撃力は、上方の３角板９ａからその下面のスペーサ枠１
３を経て上方のコイルばね６と油圧緩衝器７に伝達され
、次いで、中央の３角板９ｂ１スペーサ枠１４、下方の
コイルばね６と油圧緩衝器７、下方の３角板９ｃを順次
径て打撃子４に伝達され、打撃子４によって衝撃力が試
験体１に付与される。The impact force of the weight 5 that has fallen onto the upper surface of the upper triangular plate 9a is transmitted from the upper triangular plate 9a to the spacer frame 1 on the lower surface of the upper triangular plate 9a.
3 to the upper coil spring 6 and hydraulic shock absorber 7, and then sequentially through the center triangular plate 9b1 spacer frame 14, the lower coil spring 6 and hydraulic shock absorber 7, and the lower triangular plate 9c. The impact force is transmitted to the impactor 4, and the impact force is applied to the test specimen 1 by the impactor 4.
この試験体１に付与された衝撃力は、打撃子４に取付け
た荷重センサ３０によって測定され、試験体１の変形量
の変位センサ３２によって測定される。The impact force applied to the test body 1 is measured by a load sensor 30 attached to the impactor 4, and the amount of deformation of the test body 1 is measured by a displacement sensor 32.
以上のように、この発明の落下衝撃試験機によれば、衝
撃付与体の落下衝撃を従来の落下衝撃試駐機に比し、比
較的ゆっ（りと時間をかけて試験体に付与することがで
きる。したがって、試験体には、実際の運動状態で靴底
に加わる衝撃力と同様な状態で衝撃力が付与されること
になるので、靴底素材の衝撃吸収性能を正しく判定でき
るという効果がある。As described above, according to the drop impact tester of the present invention, the drop impact of the impact applying body can be applied to the test specimen relatively slowly (over time) compared to conventional drop impact test parking machines. Therefore, since the test specimen is subjected to an impact force similar to the impact force applied to the sole of a shoe during actual exercise, it is effective in accurately determining the impact absorption performance of the sole material. There is.
第１図はこの発明に係る落下衝撃試験機の一例を示す正
面図、第２図は同上の側面図、第３図は同上の平面図、
第４図はアームによってウェイトを持ち上げた状態を示
す同上の部分正面図、第５図はウェイトを落下させた直
後の状態を示す同上の部分正面図である。
１・・・・・・試験体、
６・・・・・・コイルばね、
１５・・・・・・アーム、
３０・・・・・・荷重センサ。
４・・・・・・打撃子、
７・・・・・・油圧緩衝器、
１９・・・・・・係合突起、
第１１し１
第５図
手
続補
正 書 （自発）
昭和６４年 １月
５日
昭和 ６３年特許願第３０４８１８号
補正の内容
明細書の第１頁第１７行、同第２頁第２行、同第２頁第
４行、同第３頁第１９行、同第３頁末行〜同第４頁第１
行、同第１１頁第５行の「吸収」をそれぞれ「緩衝」に
訂正します。
２゜
発明の名称
落下衝堅試験機
３゜
補正をする者
事件との関係FIG. 1 is a front view showing an example of a drop impact tester according to the present invention, FIG. 2 is a side view of the same, and FIG. 3 is a plan view of the same.
FIG. 4 is a partial front view of the same as the above, showing a state in which the weight is lifted by the arm, and FIG. 5 is a partial front view of the same as the above, showing the state immediately after the weight is dropped. 1...Test object, 6...Coil spring, 15...Arm, 30...Load sensor. 4... Striker, 7... Hydraulic shock absorber, 19... Engaging protrusion, No. 11-1 Amendment to Figure 5 procedure (voluntary) January 1988 5th, 1988 Patent Application No. 304818 Amended Description of Contents, page 1, line 17, page 2, line 2, page 2, line 4, page 3, line 19, page 3 End of page~Page 4, No. 1
"Absorption" in line 5 of page 11 will be corrected to "buffer". 2゜Name of the invention Drop impact testing machine 3゜Relationship with the person making the amendment case
Claims (2)
衝撃付与体を試験体に対して落下させる落下装置と、衝
撃付与体を試験体に落下させた際に打撃子に加わる衝撃
力を測定する測定装置とからなる落下衝撃試験機におい
て、上記衝撃付与体の打撃子とウェイトとの間に緩衝部
を介在させたことを特徴とする落下衝撃試験機。(1) An impact applying body consisting of a striker and a weight, a dropping device that drops the impact applying body onto the test specimen, and a drop device that reduces the impact force applied to the impactor when the impact applying body is dropped onto the test specimen. 1. A drop impact tester comprising a measuring device for measuring, characterized in that a buffer section is interposed between the impactor of the impact applying body and the weight.
せからなる請求項（１）記載の落下衝撃試験機。(2) The drop impact tester according to claim (1), wherein the buffer section comprises a combination of a coil spring and a hydraulic shock absorber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63304818A JPH0652229B2 (en) | 1988-11-30 | 1988-11-30 | Drop impact tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63304818A JPH0652229B2 (en) | 1988-11-30 | 1988-11-30 | Drop impact tester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02150742A true JPH02150742A (en) | 1990-06-11 |
| JPH0652229B2 JPH0652229B2 (en) | 1994-07-06 |
Family
ID=17937621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63304818A Expired - Lifetime JPH0652229B2 (en) | 1988-11-30 | 1988-11-30 | Drop impact tester |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0652229B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116273953A (en) * | 2023-03-23 | 2023-06-23 | 江苏展旺能源科技有限公司 | Detection equipment and detection method for lithium battery detection |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5366287A (en) * | 1976-11-25 | 1978-06-13 | Nippon Rubber Co | Testing machine for footwears |
| JPS62189646U (en) * | 1986-05-26 | 1987-12-02 |
-
1988
- 1988-11-30 JP JP63304818A patent/JPH0652229B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5366287A (en) * | 1976-11-25 | 1978-06-13 | Nippon Rubber Co | Testing machine for footwears |
| JPS62189646U (en) * | 1986-05-26 | 1987-12-02 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116273953A (en) * | 2023-03-23 | 2023-06-23 | 江苏展旺能源科技有限公司 | Detection equipment and detection method for lithium battery detection |
| CN116273953B (en) * | 2023-03-23 | 2024-01-05 | 青岛锐捷智能仪器有限公司 | Detection equipment for lithium battery detection |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0652229B2 (en) | 1994-07-06 |
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