JP5409691B2 - Wheel wear detection device and walking aid equipped with the same - Google Patents
Wheel wear detection device and walking aid equipped with the same Download PDFInfo
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- JP5409691B2 JP5409691B2 JP2011088057A JP2011088057A JP5409691B2 JP 5409691 B2 JP5409691 B2 JP 5409691B2 JP 2011088057 A JP2011088057 A JP 2011088057A JP 2011088057 A JP2011088057 A JP 2011088057A JP 5409691 B2 JP5409691 B2 JP 5409691B2
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Description
本発明は、車輪摩滅検出装置およびそれを備えた歩行補助器に関する。 The present invention relates to a wheel wear detection device and a walking aid provided with the same.
従来から、車輪摩滅検出装置およびそれを備えた歩行補助器について種々の開発または研究がなされている。例えば、特許文献１には、タイヤ部の摩耗をその外観から直に認識することができ、ブレーキ力の調整時期の認識などに役立てることができるキャスターについて開示されている。 Conventionally, various developments or studies have been made on a wheel wear detection device and a walking aid equipped with the device. For example, Patent Document 1 discloses a caster that can directly recognize the wear of a tire portion from its appearance and can be used for recognition of a brake force adjustment time.
特許文献１記載のキャスターでは、二叉状に形成されたフォークの下部に車輪が回転自在に軸支され、該車輪はホイールの外周部にタイヤ部が取着されて形成され、該タイヤ部の外周部にブレーキ部材を押し付けてブレーキをかけるブレーキ装置付きのキャスターにおいて、該車輪のタイヤ部の内部に、該タイヤ部とは相違した色に着色されたマーク部材が埋設され、キャスターの使用により該タイヤ部の外周部が摩耗したとき、該マーク部材の一部が該タイヤ部の外周に露出するものである。 In the caster described in Patent Document 1, a wheel is rotatably supported at a lower portion of a fork formed in a bifurcated shape, and the wheel is formed by attaching a tire portion to an outer peripheral portion of the wheel. In a caster with a brake device that applies a brake by pressing a brake member on an outer peripheral portion, a mark member colored in a color different from the tire portion is embedded in the tire portion of the wheel, and the caster is used to When the outer peripheral portion of the tire portion is worn, a part of the mark member is exposed on the outer periphery of the tire portion.
特許文献１記載のキャスターについては、タイヤ部の内部に、マーク部材が埋設されているので、タイヤ部の交換時期を認識することができるという効果を奏する。
しかしながら、特許文献１記載のキャスターでは、マーク部材をタイヤ内部に埋設するため、タイヤの製造コストが増加する。また、マーク部材が埋設されていないタイヤを使用していた場合、タイヤ自体を交換しなければ、交換時期がわからず、交換するタイミングを誤れば、環境的に好ましくない。
About the caster of patent document 1, since the mark member is embed | buried under the inside of a tire part, there exists an effect that the replacement time of a tire part can be recognized.
However, in the caster described in Patent Literature 1, since the mark member is embedded in the tire, the manufacturing cost of the tire increases. In addition, when a tire in which the mark member is not embedded is used, unless the tire itself is replaced, the replacement time is not known, and if the replacement timing is incorrect, it is not environmentally preferable.
本発明の目的は、コストを低減しつつ、明確にタイヤ交換時期を明示することができる車輪摩滅検出装置およびそれを備えた歩行補助器を提供することである。 An object of the present invention is to provide a wheel wear detection device that can clearly indicate a tire replacement time and a walking aid equipped with the same while reducing costs.
（１）
一局面に従う車輪摩滅検出装置は、車輪のタイヤ部の側面に配設される検出マーク部を含み、検出マーク部は、所定の色からなる第１層と、第１層と相違する色からなる第２層と、が積層して設けられ、タイヤ部が交換推奨レベルまで摩滅した場合に、検出マーク部の第１層が摩滅し、第２層が露出するものである。
(1)
A wheel wear detection device according to one aspect includes a detection mark portion disposed on a side surface of a tire portion of a wheel, and the detection mark portion includes a first layer having a predetermined color and a color different from the first layer. When the tire part is worn down to the recommended replacement level, the first layer of the detection mark part is worn away and the second layer is exposed.
この場合、車輪摩滅検出装置の検出マーク部は、車輪のタイヤ部の側面に配設され、タイヤ部が交換推奨レベルまで摩滅した場合に、検出マーク部の第１層が地面と接触して摩滅し、第２層が露出する。その結果、使用者は、露出された第２層を認識することで、タイヤ部の交換推奨時期を認識することができる。また、タイヤ部の側面に配設させることで、特許文献１記載のタイヤの内部にタイヤマークを設けた場合と比較して、コストを低減することができる。 In this case, the detection mark portion of the wheel wear detection device is disposed on the side surface of the tire portion of the wheel, and when the tire portion is worn down to the recommended replacement level, the first layer of the detection mark portion comes into contact with the ground and wears out. Then, the second layer is exposed. As a result, the user can recognize the recommended replacement period of the tire portion by recognizing the exposed second layer. Further, by arranging the tire mark on the side surface of the tire portion, the cost can be reduced as compared with the case where a tire mark is provided inside the tire described in Patent Document 1.
（２）
車輪摩滅検出装置において、第１層は、タイヤ部と同系色からなり、第２層は、赤系色からなってもよい。
(2)
In the wheel wear detection device, the first layer may be formed of a color similar to that of the tire portion, and the second layer may be formed of a red color.
この場合、第１層は、タイヤ部と同系色からなるので、タイヤ部が交換推奨レベルに到達するまでは目立つことがなく、第２層は赤系色からなるので、タイヤ部が交換推奨レベルに到達した場合、第１層が摩滅して第２層が露出される。その結果、使用者は、交換推奨レベルを容易に認識することができる。 In this case, the first layer is composed of the same color as the tire portion, so it does not stand out until the tire portion reaches the recommended replacement level, and the second layer is composed of a red color, so the tire portion is the recommended replacement level. The first layer is abraded and the second layer is exposed. As a result, the user can easily recognize the recommended replacement level.
（３）
車輪摩滅検出装置において、車輪は、ホイールに設けられた保持部をさらに備え、検出マーク部は、第１層と第２層とが積層して設けられ、かつ保持部と嵌合してもよい。
(3)
In the wheel wear detection device, the wheel may further include a holding portion provided on the wheel, and the detection mark portion may be provided by laminating the first layer and the second layer, and may be fitted with the holding portion. .
この場合、車輪のホイールに設けられた保持部に検出マーク部が嵌合される。その結果、タイヤ部が交換推奨レベルに到達し、第２層が露出して、車輪のタイヤ部が交換された場合、検出マーク部のみを新品に交換することで、タイヤ部と同様、容易に車輪摩滅検出装置を新品にすることができる。また、車輪毎交換する場合も、検出マークを容易に取り付けることができる。 In this case, the detection mark part is fitted to the holding part provided on the wheel of the wheel. As a result, when the tire part reaches the recommended replacement level, the second layer is exposed, and the tire part of the wheel is replaced, it is easy to replace the detection mark part with a new one, just like the tire part. The wheel wear detection device can be made new. Also, the detection mark can be easily attached when replacing each wheel.
（４）
車輪摩滅検出装置において、検出マーク部は、タイヤ部の交換推奨レベルの外周面に沿った曲面形状を有し、かつ車輪の車軸側の側面に設けられ、タイヤ部の側面に接触してもよい。
(4)
In the wheel wear detection device, the detection mark portion may have a curved surface shape along the outer peripheral surface of the recommended replacement level of the tire portion, and may be provided on a side surface of the wheel on the axle side to contact the side surface of the tire portion .
この場合、検出マーク部がタイヤ部の交換推奨レベルの外周面に沿った曲面形状を有しているので、タイヤ部が交換推奨レベルに到達した場合、第２層を確実に露出させることができる。また、交換検出部は、タイヤ部の側面に接触して設けられるので、タイヤ部に振動がある場合でも、交換検出部が外れることを防止することができる。 In this case, since the detection mark portion has a curved surface shape along the outer peripheral surface of the recommended replacement level of the tire portion, the second layer can be reliably exposed when the tire portion reaches the recommended replacement level. . Moreover, since the replacement detection part is provided in contact with the side surface of the tire part, it is possible to prevent the replacement detection part from coming off even when the tire part is vibrated.
（５）
歩行補助器において、請求項１から４のいずれか１項に記載の車輪摩滅検出装置を備えてもよい。
(5)
The walking assistance device may include the wheel wear detection device according to any one of claims 1 to 4.
この場合、歩行補助器に車輪摩滅検出装置を備えているので、車輪摩滅検出装置の検出マーク部は、タイヤ部が交換推奨レベルまで摩滅した場合に、検出マーク部の第１層が摩滅し、第２層が露出する。その結果、使用者は、露出された第２層を認識することで、タイヤ部の交換推奨時期を認識することができる。また、タイヤ部の側面に配設させることで、タイヤ部の内部にタイヤマークを設けた場合と比較して、コストを低減することができる。 In this case, since the walking assistance device is equipped with a wheel wear detection device, the detection mark portion of the wheel wear detection device wears down the first layer of the detection mark portion when the tire portion is worn down to the recommended replacement level, The second layer is exposed. As a result, the user can recognize the recommended replacement period of the tire portion by recognizing the exposed second layer. Further, by arranging the tire mark on the side surface of the tire part, the cost can be reduced as compared with the case where a tire mark is provided inside the tire part.
以下、本発明に係る実施の形態について図面を用いて説明する。本実施の形態においては、歩行補助器５００に車輪摩滅検出装置３００を備えた車輪１００を用いた場合について説明を行う。 Embodiments according to the present invention will be described below with reference to the drawings. In the present embodiment, the case where the wheel 100 provided with the wheel wear detection device 300 is used for the walking aid 500 will be described.
（一実施の形態）
まず、図１は歩行補助器５００に車輪摩滅検出装置３００を備えた車輪１００を設けた一例を示す模式的斜視図であり、図２は車輪１００の一例を示す模式的斜視図であり、図３は図２の車輪１００の車軸受け２２０側から視野した模式的平面図であり、図４は図２の車輪１００の転がり方向から視野した模式的側面図を示す。
(One embodiment)
First, FIG. 1 is a schematic perspective view showing an example in which a wheel 100 provided with a wheel wear detection device 300 is provided in a walking assistance device 500, and FIG. 2 is a schematic perspective view showing an example of the wheel 100. 3 is a schematic plan view as viewed from the wheel bearing 220 side of the wheel 100 in FIG. 2, and FIG. 4 is a schematic side view as viewed from the rolling direction of the wheel 100 in FIG.
まず、図１に示すように、歩行補助器５００には、複数の車輪１００が設けられている。 First, as shown in FIG. 1, the walking assist device 500 is provided with a plurality of wheels 100.
図２に示すように、車輪１００は、主に、ホイール２００およびタイヤ４００からなる。ホイール２００には、車軸受け２２０および車輪摩滅検出装置３００が設けられる。
車輪摩滅検出装置３００は、車輪１００の車軸受け２２０側に設けられ、かつタイヤ４００に接触するように設けられる。タイヤ４００は、樹脂、熱可塑性樹脂発泡体またはゴム等からなる。
As shown in FIG. 2, the wheel 100 mainly includes a wheel 200 and a tire 400. The wheel 200 is provided with an axle bearing 220 and a wheel wear detection device 300.
The wheel wear detection device 300 is provided on the wheel bearing 220 side of the wheel 100 and is provided so as to contact the tire 400. The tire 400 is made of a resin, a thermoplastic resin foam, rubber, or the like.
（車輪摩滅検出装置３００の構造について）
続いて、車輪摩滅検出装置３００の詳細について説明を行う。
図５は図４の車輪摩滅検出装置３００のＡ部を拡大した模式図であり、図６は車輪摩滅検出装置３００の構成を示す模式的断面図であり、図７は車輪摩滅検出装置３００の取り付け方法を説明する説明図であり、図８は車輪摩滅検出装置３００がタイヤ４００に接触している状態を示す模式図であり、図９はタイヤが交換時期に到達した状態を説明するための模式図であり、図１０は図９の状態の際の車輪摩滅検出装置３００を示す図である。
(Regarding the structure of the wheel wear detection device 300)
Next, details of the wheel wear detection device 300 will be described.
FIG. 5 is an enlarged schematic view of part A of the wheel wear detection device 300 of FIG. 4, FIG. 6 is a schematic cross-sectional view showing the configuration of the wheel wear detection device 300, and FIG. FIG. 8 is a schematic diagram illustrating a state in which the wheel wear detection device 300 is in contact with the tire 400, and FIG. 9 is a diagram for illustrating a state in which the tire has reached the replacement time. FIG. 10 is a diagram showing the wheel wear detection device 300 in the state of FIG.
まず、図５および図６に示すように、車輪摩滅検出装置３００は、検出マーク部３１０および保持部３２０からなる。検出マーク部３１０は、コ字形状からなり、保持部３２０に嵌合可能に設けられる。 First, as shown in FIGS. 5 and 6, the wheel wear detection device 300 includes a detection mark part 310 and a holding part 320. The detection mark portion 310 has a U-shape and is provided so as to be fitted to the holding portion 320.
また、図３に示すように、本実施の形態に係る車輪摩滅検出装置３００の保持部３２０は、ホイール２００と一体に設けられている。すなわち、ホイール２００の金型に車輪摩滅検出装置３００の保持部３２０が一体形成されている。 As shown in FIG. 3, the holding unit 320 of the wheel wear detection device 300 according to the present embodiment is provided integrally with the wheel 200. That is, the holding part 320 of the wheel wear detection device 300 is integrally formed with the mold of the wheel 200.
図６に示すように、検出マーク部３１０は、塗装部３１１，コア部材３１２、塗装部３１３からなる。本実施の形態においては、コア部材３１２が赤色等の警告色からなり、塗装部３１１，３１３は、タイヤ４００と同様の黒色等からなる。また、検出マーク部３１０は、後述する交換時期レベルＣＬＶの場合に、車輪１００のタイヤ４００の外周面（ラジアル面）に沿った曲線を有する。コア部材３１２の設計上の配設位置については後述する。 As shown in FIG. 6, the detection mark part 310 includes a paint part 311, a core member 312, and a paint part 313. In the present embodiment, the core member 312 is made of a warning color such as red, and the painted portions 311 and 313 are made of black or the like similar to the tire 400. Moreover, the detection mark part 310 has a curve along the outer peripheral surface (radial surface) of the tire 400 of the wheel 100 in the case of the replacement time level CLV described later. The design arrangement position of the core member 312 will be described later.
本実施の形態における検出マーク部３１０は、交換可能な部材であり、タイヤ４００の交換と同時に交換されるものである。
以下、交換手法の一例について説明を行う。
The detection mark portion 310 in the present embodiment is a replaceable member and is replaced at the same time as the tire 400 is replaced.
Hereinafter, an example of the exchange method will be described.
（車輪摩滅検出装置３００の交換手法）
図６に示すように、車輪摩滅検出装置３００の保持部３２０から古い検出マーク部３１０を取り外し、新しい検出マーク部３１０を矢印Ｈ１の方向から取り付ける。ここで、矢印Ｈ１の方向は、車輪１００の外側から内側（車軸受け２２０側）へ向かう方向である。
(Wheel wear detection device 300 replacement method)
As shown in FIG. 6, the old detection mark part 310 is removed from the holding | maintenance part 320 of the wheel wear detection apparatus 300, and the new detection mark part 310 is attached from the direction of arrow H1. Here, the direction of the arrow H1 is a direction from the outside of the wheel 100 toward the inside (the axle bearing 220 side).
次に、図７に示すように、新しいタイヤ４００を矢印Ｈ１の方向からホイール２００に取り付ける。その結果、図８に示すように、検出マーク部３１０の取り外し方向が新しいタイヤ４００により閉塞される。また、検出マーク３１０は、タイヤ４００の側面４１０に接触することにより矢印Ｈ１の方向へ力Ｈ１ｆが加わる。その結果、車輪１００に振動が生じても検出マーク３１０が外れることを防止することができる。 Next, as shown in FIG. 7, a new tire 400 is attached to the wheel 200 from the direction of the arrow H1. As a result, as shown in FIG. 8, the removal direction of the detection mark portion 310 is blocked by the new tire 400. Further, when the detection mark 310 is in contact with the side surface 410 of the tire 400, a force H1f is applied in the direction of the arrow H1. As a result, the detection mark 310 can be prevented from coming off even if the wheel 100 is vibrated.
（車輪摩滅検出装置３００の効果）
次に、車輪摩滅検出装置３００の効果について説明する。
図８に示すように、新品のタイヤ４００において、タイヤ４００が交換時期レベルＣＬＶまで摩滅した場合、タイヤ４００を交換する。すなわち、このタイヤ４００の交換時期レベルＣＬＶの位置に、検出マーク部３１０のコア部材３１２が位置するように配設される。
(Effect of wheel wear detection device 300)
Next, the effect of the wheel wear detection device 300 will be described.
As shown in FIG. 8, in the new tire 400, when the tire 400 is worn down to the replacement time level CLV, the tire 400 is replaced. That is, the core member 312 of the detection mark portion 310 is disposed at the replacement timing level CLV of the tire 400.
図９に示すように、経時変化ＣＨによりタイヤ４００がタイヤ４００ＣＨとなり、交換時期レベルＣＬＶまで減少した場合、検出マーク部３１０の塗装部３１１が地面に接地して、摩滅する。その結果、検出マーク部３１０のコア部材３１２がタイヤ４００の側面に露出する。 As shown in FIG. 9, when the tire 400 becomes the tire 400CH due to the temporal change CH and decreases to the replacement time level CLV, the coating portion 311 of the detection mark portion 310 is grounded and worn out. As a result, the core member 312 of the detection mark portion 310 is exposed on the side surface of the tire 400.
この場合、例えば、図１０に示すように、車輪摩滅検出装置３００の検出マーク部３１０の塗装部３１１の色（黒色）から経時変化ＣＨ後のコア部材３１２の色（赤色等）に変化する。 In this case, for example, as shown in FIG. 10, the color of the coating member 311 of the detection mark unit 310 of the wheel wear detection device 300 (black) changes to the color of the core member 312 after aging CH (red, etc.).
（車輪摩滅検出装置３００の他の例）
図１１は、車輪摩滅検出装置３００の他の例を示す模式図であり、図１２は、車輪摩滅検出装置３００のさらに他の例を示す模式図である。
(Another example of the wheel wear detection device 300)
FIG. 11 is a schematic diagram illustrating another example of the wheel wear detection device 300, and FIG. 12 is a schematic diagram illustrating still another example of the wheel wear detection device 300.
図１１に示すように、車輪摩滅検出装置３００ａは、車輪摩滅検出装置３００と異なり、車軸受け２２０の孔で固定することができる。すなわち、車輪１００とは、一体に形成されず、一般の車輪１００ａに対しても取り付けることができる。 As shown in FIG. 11, unlike the wheel wear detection device 300, the wheel wear detection device 300 a can be fixed by a hole in the wheel bearing 220. That is, the wheel 100 is not integrally formed and can be attached to a general wheel 100a.
また、図１２に示すように、車輪摩滅検出装置３００ｂは、検出マーク部３１０ｂおよびホイール固定部３２０ｂからなる。当該ホイール固定部３２０ｂは、ホイール２００に固定可能な形状からなる。その結果、車輪１００とは、一体に形成されず、一般の車輪１００ａに対しても取り付けることができる。 Further, as shown in FIG. 12, the wheel wear detection device 300b includes a detection mark portion 310b and a wheel fixing portion 320b. The wheel fixing part 320 b has a shape that can be fixed to the wheel 200. As a result, the wheel 100 is not integrally formed and can be attached to a general wheel 100a.
なお、本実施の形態においては、歩行補助器５００について説明をしたが、これに限定されず、手押し車、シルバーカー、車椅子、歩行車、ショッピングカート等、移動補助または歩行補助を行う車輪を備えた任意の人力車にも適用することができる。 In the present embodiment, the walking assist device 500 has been described. However, the present invention is not limited to this, and a wheel for performing mobility assistance or walking assistance, such as a wheelbarrow, a silver car, a wheelchair, a walking car, a shopping cart, etc. It can also be applied to any rickshaw.
さらに、本実施の形態においては、検出マーク部３１０に塗装部３１１，３１３を設けることとしたが、これに限定されず、コア部材３１２の全体に塗装部を設けてもよく、コア部材３１２の全体に異なる色の樹脂層を設けてもよい。
また、塗装部３１１は、白色でもよい。また、塗装部３１１と塗装部３１３とは、異なる色であってもよく、同色であってもよい。また、塗装部３１３は、夜間用に光る蛍光塗装であってもよい。さらに、保持部３２０は、検出マーク部３１０の逆挿防止構造を有してもよい。
Furthermore, in the present embodiment, the coating portions 311 and 313 are provided on the detection mark portion 310, but the present invention is not limited to this, and the coating portion may be provided on the entire core member 312. You may provide the resin layer of a different color in the whole.
Moreover, the coating part 311 may be white. Also, the painted portion 311 and the painted portion 313 may be different colors or the same color. Moreover, the coating part 313 may be a fluorescent coating that shines for the night. Further, the holding unit 320 may have a reverse insertion prevention structure for the detection mark unit 310.
また、本実施の形態においては、検出マーク３１０のコア部材３１２を赤色樹脂からなることとしたが、これに限定されず、使用者に交換時期レベルを報知するものであれば、他の任意の形状または装置を用いてもよい。例えば、塗装部３１１が地面と接触して摩滅することにより、“交換時期”と彫り込み文字が浮き出るようにしてもよい。その結果、使用者は、確実にタイヤ４００の交換時期を認識することができる。 In the present embodiment, the core member 312 of the detection mark 310 is made of a red resin. However, the present invention is not limited to this, and any other arbitrary one can be used as long as it notifies the user of the replacement time level. Shapes or devices may be used. For example, the engraving character may appear as “replacement time” by the paint portion 311 coming into contact with the ground and being worn away. As a result, the user can reliably recognize the replacement time of the tire 400.
さらに、本実施の形態においては、車輪１００の一箇所に検出マーク３１０を設けることとしたが、これに限定されず、他の任意の箇所設けてもよい。また、車軸受け２２０側に設けることとしたが、使用者の脚または他の障害物の関係上問題がなければ、車軸受け２２０側とは逆側に設けてもよい。 Furthermore, in the present embodiment, the detection mark 310 is provided at one place of the wheel 100, but the present invention is not limited to this, and any other arbitrary place may be provided. Moreover, although it decided to provide in the axle bearing 220 side, if there is no problem on the relationship of a user's leg or another obstruction, you may provide in the opposite side to the axle bearing 220 side.
なお、本実施の形態においては、塗装部３１１、コア部材３１２が、タイヤ４００の接地面（ラジアル面）と同周となるよう曲面からなることとしているが、これに限定されず、タイヤ４００が回転した際に、振動を与える他の任意の形状をであってもよい。例えば、星型形状、平面形状、湾曲形状であってもよい。 In the present embodiment, the painted portion 311 and the core member 312 are formed of a curved surface so as to have the same circumference as the ground contact surface (radial surface) of the tire 400. However, the present invention is not limited to this, and the tire 400 Other arbitrary shapes that give vibration when rotated may be used. For example, it may be a star shape, a planar shape, or a curved shape.
また、本実施の形態においては、摩滅という文言を使用しているが、当該摩滅には、磨耗、消耗等、タイヤ４００の磨り減りを意味する。さらに、当該実施の形態においては、タイヤ４００を交換することとしているが、これに限定されず、車輪１００，１００ａそのものを交換するものも権利範囲に含まれる。 Further, in the present embodiment, the term wear is used, but the wear means wear of the tire 400 such as wear and wear. Further, in the present embodiment, the tire 400 is replaced. However, the present invention is not limited to this, and the scope of the right includes replacement of the wheels 100 and 100a themselves.
以上のように、本実施の形態に係る車輪摩滅検出装置３００およびそれを用いた歩行補助器５００において、検出マーク部３１０は、車輪１００のタイヤ４００の側面に配設され、タイヤ４００が交換時期レベルＣＬＶまで摩滅した場合に、検出マーク部３１０の塗装部３１１が摩滅し、コア部材３１２が露出する。 As described above, in the wheel wear detection device 300 and the walking assist device 500 using the same according to the present embodiment, the detection mark unit 310 is disposed on the side surface of the tire 400 of the wheel 100, and the tire 400 is replaced. When worn down to the level CLV, the coating part 311 of the detection mark part 310 is worn away, and the core member 312 is exposed.
その結果、使用者は、露出されたコア部材３１２を認識することで、タイヤ４００の交換推奨時期を認識することができる。また、タイヤ４００の側面に配設させることで、タイヤ４００の内部にタイヤマークを設けた場合と比較して、製造コストを低減することができる。 As a result, the user can recognize the recommended replacement timing of the tire 400 by recognizing the exposed core member 312. Further, by arranging the tire 400 on the side surface of the tire 400, the manufacturing cost can be reduced as compared with the case where a tire mark is provided inside the tire 400.
また、塗装部３１１は、タイヤ４００と同系色からなるので、タイヤ４００が交換時期レベルＣＬＶに到達するまでは目立つことがなく、コア部材３１２は赤系色からなるので、タイヤ４００が交換時期レベルＣＬＶに到達した場合、塗装部３１１が摩滅してコア部材３１２が露出され、使用者は、交換時期レベルＣＬＶを容易に認識することができる。 Further, since the painted portion 311 has the same color as the tire 400, it does not stand out until the tire 400 reaches the replacement time level CLV, and the core member 312 has a red color, so the tire 400 has the replacement time level. When it reaches CLV, the coating part 311 is worn out and the core member 312 is exposed, and the user can easily recognize the replacement time level CLV.
また、本実施の形態における車輪摩滅検出装置３００では、車輪１００のホイール２００に設けられた保持部３２０に検出マーク部３１０が嵌合される。その結果、タイヤ４００が交換時期レベルＣＬＶに到達し、コア部材３１２が露出して、車輪１００のタイヤ４００が交換された場合、検出マーク部３１０のみを新品に交換することで、タイヤ４００と同様、容易に車輪摩滅検出装置３００を新品にすることができる。 Further, in wheel wear detection device 300 in the present embodiment, detection mark portion 310 is fitted into holding portion 320 provided on wheel 200 of wheel 100. As a result, when the tire 400 reaches the replacement timing level CLV, the core member 312 is exposed, and the tire 400 of the wheel 100 is replaced, only the detection mark portion 310 is replaced with a new one. The wheel wear detection device 300 can be easily made new.
さらに、検出マーク部３１０がタイヤ４００の交換時期レベルＣＬＶの外周面に沿った曲面形状を有しているので、タイヤ４００が交換時期レベルＣＬＶに到達した場合、コア部材３１２を確実に露出させることができる。また、交換検出部は、タイヤ４００の側面に接触して設けられるので、タイヤ４００に振動がある場合でも、検出マーク部３１０が保持部３２０から外れることを防止することができる。 Further, since the detection mark portion 310 has a curved surface shape along the outer peripheral surface of the replacement timing level CLV of the tire 400, the core member 312 is surely exposed when the tire 400 reaches the replacement timing level CLV. Can do. Further, since the replacement detection unit is provided in contact with the side surface of the tire 400, the detection mark unit 310 can be prevented from being detached from the holding unit 320 even when the tire 400 is vibrated.
本発明においては、車輪１００が車輪に相当し、タイヤ４００がタイヤ部に相当し、側面４１０がタイヤ部の側面に相当し、検出マーク部３１０が検出マーク部に相当し、塗装部３１１，３１３が所定の色からなる第１層に相当し、コア部材３１２が第２層に相当し、交換時期レベルＣＬＶが交換推奨レベルに相当し、車輪摩滅検出装置３００が車輪摩滅検出装置に相当し、ホイール２００がホイールに相当し、保持部３２０が保持部に相当し、車軸受け２２０側が車軸側に相当し、歩行補助器５００が歩行補助器に相当する。 In the present invention, the wheel 100 corresponds to the wheel, the tire 400 corresponds to the tire portion, the side surface 410 corresponds to the side surface of the tire portion, the detection mark portion 310 corresponds to the detection mark portion, and the coating portions 311 and 313. Corresponds to the first layer having a predetermined color, the core member 312 corresponds to the second layer, the replacement timing level CLV corresponds to the recommended replacement level, the wheel wear detection device 300 corresponds to the wheel wear detection device, The wheel 200 corresponds to the wheel, the holding part 320 corresponds to the holding part, the axle bearing 220 side corresponds to the axle side, and the walking aid 500 corresponds to the walking aid.
本発明の好ましい一実施の形態は上記の通りであるが、本発明はそれだけに制限されない。本発明の精神と範囲から逸脱することのない様々な実施形態が他になされることは理解されよう。さらに、本実施形態において、本発明の構成による作用および効果を述べているが、これら作用および効果は、一例であり、本発明を限定するものではない。 A preferred embodiment of the present invention is as described above, but the present invention is not limited thereto. It will be understood that various other embodiments may be made without departing from the spirit and scope of the invention. Furthermore, in this embodiment, although the effect | action and effect by the structure of this invention are described, these effect | actions and effects are examples and do not limit this invention.
１００ 車輪
２００ ホイール
２２０ 車輪軸受け
３００ 車輪摩滅検出装置
３１０ 検出マーク部
３１１，３１３ 塗装部
３１２ コア部材
３２０ 保持部
４００ タイヤ
４１０ 側面
５００ 歩行補助器
ＣＬＶ 交換時期レベル
DESCRIPTION OF SYMBOLS 100 Wheel 200 Wheel 220 Wheel bearing 300 Wheel abrasion detection apparatus 310 Detection mark part 311,313 Painting part 312 Core member 320 Holding part 400 Tire 410 Side surface 500 Walking assistance device CLV Replacement time level
Claims (4)
前記車輪のホイール部と一体または固定可能に設けられた保持部と、を含み、
前記保持部は、前記ホイール部のリム部から車幅方向かつ外周側に突設され、
前記検出マーク部は、
所定の色からなる第１層と、
前記第１層と相違する色からなる第２層と、が積層して設けられ、前記保持部と嵌合し、かつ前記車輪の車軸側の側面に設けられ、
前記タイヤ部が交換推奨レベルまで摩滅した場合に、前記検出マーク部の前記第１層が摩滅し、前記第２層が露出することを特徴とする車輪摩滅検出装置。 A detection mark portion disposed on a side surface of a tire portion of a wheel of a rickshaw equipped with a wheel for performing movement assistance or walking assistance ;
A holding portion provided integrally or fixably with the wheel portion of the wheel, and
The holding portion protrudes from the rim portion of the wheel portion in the vehicle width direction and on the outer peripheral side,
The detection mark portion is
A first layer of a predetermined color;
A second layer having a color different from that of the first layer is provided by being stacked , fitted with the holding portion, and provided on a side surface of the wheel on the axle side,
The wheel wear detection device according to claim 1, wherein when the tire portion is worn down to a recommended replacement level, the first layer of the detection mark portion is worn away and the second layer is exposed.
前記第２層は、赤系色からなることを特徴とする請求項１記載の車輪摩滅検出装置。 The first layer has a similar color to the tire portion,
The wheel wear detection device according to claim 1, wherein the second layer is made of a reddish color.
A walking aid comprising the wheel wear detection device according to any one of claims 1 to 3 .
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| JPH0717606U (en) * | 1993-06-14 | 1995-03-31 | 昭雄 田川 | Wheels and tires with wear indicator |
| JP3067056U (en) * | 1998-06-10 | 2000-03-21 | 昌広 山本 | Tire wear recognition device |
| JP2004114998A (en) * | 2002-09-27 | 2004-04-15 | Kenichiro Natsui | Tire informing wear of tire and expiration of service life of tire (easily recognizable tire) |
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