JPH06255330A - Life display ring - Google Patents
Life display ringInfo
- Publication number
- JPH06255330A JPH06255330A JP7536593A JP7536593A JPH06255330A JP H06255330 A JPH06255330 A JP H06255330A JP 7536593 A JP7536593 A JP 7536593A JP 7536593 A JP7536593 A JP 7536593A JP H06255330 A JPH06255330 A JP H06255330A
- Authority
- JP
- Japan
- Prior art keywords
- ring
- parts
- rubber
- life
- life expectancy
- 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
- 229920001971 elastomer Polymers 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 12
- 239000005060 rubber Substances 0.000 claims abstract description 12
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 7
- 239000000057 synthetic resin Substances 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims abstract description 3
- 230000015556 catabolic process Effects 0.000 abstract 2
- 238000006731 degradation reaction Methods 0.000 abstract 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 4
- 230000032683 aging Effects 0.000 description 4
- 230000005856 abnormality Effects 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 239000003963 antioxidant agent Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000012188 paraffin wax Substances 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 239000001993 wax Substances 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ある環境下で時間の経
過とともに劣化する材料、例えばゴム、合成樹脂部品等
の環境劣化を使用者に知らせる目的の部品で、極めて広
い分野で使用できるものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a material which deteriorates with time under a certain environment, such as rubber and synthetic resin parts, for the purpose of notifying the user of environmental deterioration, and which can be used in an extremely wide field. Is.
【０００２】[0002]
【従来の技術】従来、使用環境を考慮した部品寿命の表
示手段は存在しなかった。2. Description of the Related Art Heretofore, there has been no means for displaying the life of parts in consideration of the operating environment.
【０００３】[0003]
【発明が解決しようとする課題】特にゴム、合成樹脂材
料でできた部品が、紫外線、オゾン、温度等の影響で劣
化し、時間の経過と共に所定の性能を発揮出来なくなる
ことは、良く知られている。そのため使用者は部品製造
者等の推奨等によってその部品寿命が来る前に定期的に
部品を交換するか、性能に異常を発見してから部品を交
換している。しかし、定期的な部品交換は使用者がその
交換記録を整備していて初めて可能であり、専門に整
備、管理を行っていない使用者には極めて困難なことで
ある。また、性能異常が極めて重大な事故につながる場
合には異常を発見してから交換していては手遅れである
という問題があった。It is well known that, in particular, parts made of rubber and synthetic resin materials deteriorate due to the effects of ultraviolet rays, ozone, temperature, etc., and can no longer exhibit predetermined performance over time. ing. Therefore, the user regularly replaces the part before the life of the part is recommended by the part manufacturer or the like, or replaces the part after discovering an abnormality in the performance. However, periodical parts replacement is possible only when the user maintains the replacement record, which is extremely difficult for a user who does not specially maintain and manage the parts. Further, when the performance abnormality leads to a very serious accident, there is a problem that it is too late to replace it after discovering the abnormality.
【０００４】[0004]
【課題を解決するための手段】本発明は、上記問題点を
解決するためになされたもので、寿命を予知したい部品
に、該部品の寿命よりも劣化の早いリング１を直接取り
付けるか、同一環境と推定される個所に間接的に取り付
けることによって可能となる。該リングの切断または、
切断によるリングの落下により使用しているゴムまたは
合成樹脂部品の寿命が近いことを使用者に容易に知らせ
るものである。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and a ring 1 which deteriorates faster than the life of the part is directly attached to the part whose life is to be predicted, or the same. It becomes possible by attaching indirectly to a place estimated to be the environment. Cutting the ring or
It easily informs the user that the rubber or synthetic resin part used is nearing the end of life due to the drop of the ring due to cutting.
【０００５】すなわち、本発明の寿命表示リングは、図
１〜図２に示すように、ゴム、合成樹脂または金属等の
対象部品の素材よりも環境による劣化が早い素材にて、
該対象部品の外径寸法よりも小径にしてリング１を形成
すると共に、該リング１の一または数箇所に断面積を減
じたり切り欠き部２を設けたことを特徴とするものであ
る。That is, as shown in FIGS. 1 and 2, the life indicating ring of the present invention is made of a material, such as rubber, synthetic resin, or metal, which is deteriorated by the environment faster than the material of the target component.
The ring 1 is formed to have a diameter smaller than the outer diameter of the target component, and the cross-sectional area is reduced or a notch 2 is provided at one or several places of the ring 1.
【０００６】[0006]
【作用】本発明の寿命表示部品は、寿命を予知したい部
品に、該部品の寿命よりも劣化の早いリング１を取り付
けて置くと、該とリング１に設けられた切り欠き部２に
応力の集中を受けることとなり、その使用環境によって
時間経過とともに発生する亀裂は切り欠き部２に多く発
生し、その亀裂の進行によりこのリングは切り欠き部で
切断されるため、使用しているゴムまたは合成樹脂部品
の寿命が近いことを使用者は容易に知ることができる。In the life indicating component of the present invention, when the ring 1 which deteriorates faster than the life of the component is attached to the component whose life is to be predicted, stress is applied to the notch 2 provided in the ring 1 and the ring 1. Due to the concentration, many cracks are generated in the notch 2 depending on the use environment, and the ring is cut at the notch as the crack progresses. The user can easily know that the life of the resin component is near.
【０００７】[0007]
【実施例】以下、本発明の実施例を図面に基づいて詳細
に説明する。図２は本発明に係る寿命表示リングの正面
図で、図３は同じく平面図、図１は前記寿命表示リング
をスナップインチューブレスバルブ４に取り付けた状態
を示す半縦断面図である。１は本発明のリング、２は切
り欠き部、３はリム、４はスナップインチューブレスバ
ルブである。リング１は、ゴムで出来ており、バルブ４
とほぼ同一のＳＢＲゴムから通常配合される老化防止剤
（マイクロリスタンワックスやパラフィン等）の量を減
らした材料、または光によるゴムの酸化が原因で発生し
やすい天然ゴム材料、すなわち、バルブのリムシール部
５が時間経過により劣化し気密保持出来なくなる時間よ
り約３０〜５０％短い時間で劣化する材料にて作られて
おり、バルブの色調黒色に対し緑色の材料を使用し使用
者の認知をし易くしている。Embodiments of the present invention will now be described in detail with reference to the drawings. 2 is a front view of the life indicating ring according to the present invention, FIG. 3 is a plan view of the same, and FIG. 1 is a semi-longitudinal sectional view showing a state where the life indicating ring is attached to the snap-in tubeless valve 4. Reference numeral 1 is a ring of the present invention, 2 is a notch portion, 3 is a rim, and 4 is a snap-in tubeless valve. Ring 1 is made of rubber and valve 4
A material with a reduced amount of antioxidants (microlistan wax, paraffin, etc.) that are usually compounded from SBR rubber, which is almost the same as, or a natural rubber material that easily occurs due to the oxidation of rubber due to light, that is, of a valve. The rim seal part 5 is made of a material that deteriorates with time and is deteriorated in about 30 to 50% shorter than the time when it cannot maintain airtightness. It is easy to do.
【０００８】また、リング１の内径は、バルブの取付部
外径より５０〜７０％ほど小さく仕上げられると共に、
該リング１の一部に切り欠き部２が設けられており、こ
の切り欠き部２に応力の集中を受けるため、該切り欠き
部２に多くの亀裂が発生しリング１が切断されるように
なっている。なお、リング１の材質ならびにリングの内
径寸法や切り欠き部２の形状は、長期老化試験、オゾン
劣化試験、耐熱試験、紫外線暴露試験等、各種の老化試
験データによって決められるものである。Further, the inner diameter of the ring 1 is finished to be 50 to 70% smaller than the outer diameter of the mounting portion of the valve, and
A notch 2 is provided in a part of the ring 1, and stress is concentrated on the notch 2, so that many cracks are generated in the notch 2 and the ring 1 is cut. Has become. The material of the ring 1, the inner diameter of the ring, and the shape of the notch 2 are determined by various aging test data such as a long-term aging test, an ozone deterioration test, a heat resistance test, and an ultraviolet exposure test.
【０００９】本実施例においては、ゴム組成としては、
バルブ４と同一のＳＢＲゴムから通常配合される老化防
止剤（マイクロリスタンワックスやパラフィン等）の量
を表１に示す如く減らした材料とし、また、内径寸法を
バルブの取付部外径より６０％小さく仕上げられると共
に厚み２ｍｍ×高さ５ｍｍに形成したリング１の一ヶ所
に深さ２ｍｍの△状の切り欠き部２を設けたものにてバ
ルブ４に装着し、長期老化試験、オゾン劣化試験、耐熱
試験、紫外線暴露試験等、各種の老化試験を実施した。In this embodiment, the rubber composition is
As shown in Table 1, the amount of antioxidants (microlistan wax, paraffin, etc.) that are usually compounded from the same SBR rubber as the valve 4 is reduced, and the inner diameter is 60 mm less than the outer diameter of the valve mounting part. % A ring 1 formed with a thickness of 2 mm and a height of 5 mm and having a Δ-shaped notch 2 with a depth of 2 mm is attached to a valve 4 for a long-term aging test and ozone deterioration test. Various aging tests such as heat resistance test and ultraviolet exposure test were conducted.
【００１０】[0010]
【表１】 [Table 1]
【００１１】これらの試験により、バルブのリムシール
性が６〜１０年で損なわれると推定できるのに対し、本
発明のリングでは４〜５年で全てのリングに多くの亀裂
が発生し、切り欠き部２における破断が生じリング１は
バルブ４から欠落した。From these tests, it can be estimated that the rim sealability of the valve is impaired in 6 to 10 years, whereas in the ring of the present invention, many cracks are generated in all the rings in 4 to 5 years and the notches are formed. A fracture occurred in part 2 and ring 1 was missing from valve 4.
【００１２】[0012]
【発明の効果】本発明のリングは実施例の場合、バルブ
のリムシール性能が限界以下に劣化する前に、リングは
紫外線、大気中のオゾン等の影響で切断、落下するため
使用者はバルブの交換時期が来たことを容易に知ること
が出来、バルブを交換することにより未然に事故を防ぐ
ことが出来る。同様に、前述のチューブレスバルブに限
らず、ある環境下で時間の経過と共に劣化する材料を使
用した部品であれば、その部品の寿命に合わせたリング
１を使用することにより専門知識がなくても部品の寿命
を予知でき、事故が発生する前にその部品を交換するこ
とによりトラブルを容易に避けることができる。In the case of the embodiment of the ring of the present invention, before the rim seal performance of the valve deteriorates below the limit, the ring is cut and dropped by the influence of ultraviolet rays, ozone in the atmosphere, etc. You can easily know when it is time to replace the valve, and you can prevent accidents by replacing the valve. Similarly, not only the tubeless valve described above but also a part made of a material that deteriorates with time under a certain environment can be used without using specialized knowledge by using the ring 1 according to the life of the part. The life of a part can be predicted, and troubles can be easily avoided by replacing the part before an accident occurs.
【図１】 本発明に係るリングをスナップインチューブ
レスバルブに取り付けた状態を示す半縦断面。FIG. 1 is a semi-longitudinal section showing a state in which a ring according to the present invention is attached to a snap-in tubeless valve.
【図２】 本発明に係る寿命表示部品の正面図。FIG. 2 is a front view of a life indicating component according to the present invention.
【図３】 図１の平面図。FIG. 3 is a plan view of FIG.
１ リング ２ 切り欠き部 ３ リム ４ ス
ナップインチューブレスバルブ ５ リムシール部。1 ring 2 notch part 3 rim 4 snap-in tubeless valve 5 rim seal part.
Claims (1)
の素材よりも環境による劣化が早い素材にて、該対象部
品の外径寸法よりも小径にしてリング１を形成すると共
に、該リング１の一または数箇所に断面積を減じたり切
り欠き部２を設けたことを特徴とする寿命表示リング。1. A ring 1 is formed of a material, such as rubber, synthetic resin, or metal, that is more rapidly deteriorated by the environment than the material of the target component, and has a smaller diameter than the outer diameter of the target component. A life indicating ring characterized by having a cross-sectional area reduced or a notch portion 2 provided at one or several places.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7536593A JPH06255330A (en) | 1993-03-08 | 1993-03-08 | Life display ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7536593A JPH06255330A (en) | 1993-03-08 | 1993-03-08 | Life display ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06255330A true JPH06255330A (en) | 1994-09-13 |
Family
ID=13574128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7536593A Pending JPH06255330A (en) | 1993-03-08 | 1993-03-08 | Life display ring |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06255330A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1122100A2 (en) * | 2000-02-02 | 2001-08-08 | Bridgeport Brass S.P.A. | Inflation valve for vehicle tyres |
| GB2423405A (en) * | 2005-02-15 | 2006-08-23 | Roger Stote | Sleeve for displaying information on a tyre valve stem |
| US7117123B2 (en) | 2003-12-17 | 2006-10-03 | Hitachi, Ltd. | Method of managing maintenance and maintenance managing apparatus |
-
1993
- 1993-03-08 JP JP7536593A patent/JPH06255330A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1122100A2 (en) * | 2000-02-02 | 2001-08-08 | Bridgeport Brass S.P.A. | Inflation valve for vehicle tyres |
| EP1122100A3 (en) * | 2000-02-02 | 2003-01-22 | Bridgeport Brass S.P.A. | Inflation valve for vehicle tyres |
| US7117123B2 (en) | 2003-12-17 | 2006-10-03 | Hitachi, Ltd. | Method of managing maintenance and maintenance managing apparatus |
| US7328133B2 (en) | 2003-12-17 | 2008-02-05 | Hitachi, Ltd. | Method of managing maintenance and maintenance managing apparatus |
| GB2423405A (en) * | 2005-02-15 | 2006-08-23 | Roger Stote | Sleeve for displaying information on a tyre valve stem |
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