JP6547103B2 - Folding white cane - Google Patents

Folding white cane Download PDF

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JP6547103B2
JP6547103B2 JP2014114594A JP2014114594A JP6547103B2 JP 6547103 B2 JP6547103 B2 JP 6547103B2 JP 2014114594 A JP2014114594 A JP 2014114594A JP 2014114594 A JP2014114594 A JP 2014114594A JP 6547103 B2 JP6547103 B2 JP 6547103B2
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shaft portion
fiber reinforced
small diameter
resin layer
cane
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JP2015226736A (en
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小菅 一彦
一彦 小菅
山本 勉
勉 山本
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Kosuge
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Description

本発明は、視覚障害者用白杖に関し、さらに詳しくは、シャフト部の軸と直交方向からの力に対して耐衝撃性に優れた十分な強度を有し、軽量で、耐久性と高い剛性を備え、しかも長期間使用しても使用時のガタツキの発生が抑制された杖に関する。
The present invention relates to a cane for the visually impaired, and more specifically, has a sufficient strength with excellent impact resistance against forces from the axial orthogonal direction of the shaft portion, a lightweight, durable and high comprising a rigid, yet relates cane which suppressed occurrence of rattling during use even when used for a long time.

従来、杖は、ステッキやポールとも称され、視覚障害者や、高齢者等の足の不自由な人のみならず、健常者においてもトレッキングや軽登山等において使用されている。このような杖は、通常、棒状のシャフト部と、シャフト部の上端に形成され使用者にて把持されるグリップ部と、シャフト部の下端に付設された石突きとを備えている。これら従来の杖は、構造的に多少の違いはあるものの、それらの殆どが、木製やアルミニウム合金等の材質から形成されている。   Conventionally, a cane is also referred to as a cane or a pole, and is used not only for visually impaired persons and persons with disabilities such as elderly people but also for healthy people in trekking and light mountain climbing. Such a cane generally comprises a rod-like shaft portion, a grip portion formed on the upper end of the shaft portion and gripped by the user, and a stone stick attached to the lower end of the shaft portion. Although these conventional canes have some differences in structure, most of them are made of materials such as wood and aluminum alloy.

しかしながら、例えば視覚障害者が使用する、いわゆる白杖にあっては、長時間に亘って、先端を地面から僅かに持ち上げた状態で使用されることが多く、使用者の負担を軽減するため、軽量化が望まれている。そこで、シャフト部を炭素繊維強化樹脂材料で構成した杖が提案されている(例えば、特許文献1を参照)。このようなシャフト部を有する杖においては、前記従来の木製やアルミニウム合金製の杖に比べて軽量化されており、反りや腐食の問題が解消されているが、視覚障害者等にとっては未だ長時間の使用に耐えうるほど軽量とはいえず、歩行路面や障害物の状況を探るため頻繁にこれらを叩く作業が入るので、その叩いた時の衝撃力が石突きを通してシャフト部に伝搬し、前記炭素繊維に微小クラック(亀裂)を発生させ、亀裂が発生している部分で容易に破断するという問題がある。   However, for example, in the case of a so-called white stick used by a visually impaired person, it is often used with the tip slightly lifted from the ground for a long time, in order to reduce the burden on the user. Weight reduction is desired. Then, the cane which comprised the shaft part with the carbon fiber reinforced resin material is proposed (for example, refer patent document 1). A wand with such a shaft portion is lighter than the conventional wand or aluminum alloy wand, and the problem of warping and corrosion is eliminated, but it is still long for visually impaired persons etc. It is not light enough to withstand the use of time, and since it is necessary to hit these frequently to find the conditions of the walking road surface and obstacles, the impact force at the time of hitting is transmitted to the shaft portion through the stone There is a problem that a micro crack (crack) is generated in the carbon fiber and the carbon fiber is easily broken at a part where the crack is generated.

上記の問題点を解消するため、シャフト部が、高強度有機繊維強化樹脂層と炭素繊維強化樹脂層とを備え、内側にガラス繊維強化樹脂層を備える杖が提案されている(例えば、特許文献2を参照)。この杖のシャフト部は、中空であり、互いに連結・分離可能な複数のシャフト部分からなり、互いに隣接するシャフト部分は、一方のシャフト部分の連結端部に、これに対向する他方のシャフト部の連結端部(アウターパイプ)内へ挿抜可能な小径部を設けることで、折り畳み可能な杖としている。   In order to solve the above problems, a cane has been proposed in which the shaft portion includes a high strength organic fiber reinforced resin layer and a carbon fiber reinforced resin layer, and a glass fiber reinforced resin layer on the inside (for example, patent documents 2). The shaft portion of the cane is hollow and comprises a plurality of shaft portions which can be connected and separated from each other, and the shaft portions adjacent to each other are connected to the connecting end of one shaft portion and the other shaft portion opposite thereto By providing a small diameter portion that can be inserted into and removed from the connection end (outer pipe), the cane is made foldable.

しかしながら、前記シャフト部分を連結した杖は、シャフト部分と該シャフト部分に接着された小径部が各製造規格をクリアーしていても、ガタツキが発生することがある。特に白杖にあっては、歩行路面や障害物の状況を探るため頻繁にこれらを叩く作業が入るので、その叩いた時の衝撃力で、シャフト部分と小径部との接着部分が破損し、その結果、使用とともにインナーパイプ潜りが発生しガタツキの発生や歩行補助として使用不可の原因となる。   However, when the shaft part and the small diameter part adhered to the shaft part satisfy each manufacturing standard, rattling may occur. In the case of white canes, in particular, work is frequently done to tap the road surface and obstacles, so the impact force at the time of the strike will break the bonded part between the shaft and the small diameter part, As a result, with the use, inner pipe diving occurs, causing rattling and unusable as walking assistance.

特開2005−218473号公報JP 2005-218473 A 特開2012−165767号公報JP 2012-165767 A

本発明は、前記の現状に鑑み、シャフト部の軸と直交方向からの力に対して耐衝撃性に優れた十分な強度を有し、軽量で、耐久性、高い剛性を備える杖であって、しかもシャフト部分と小径部との接着強度が高く、長期間使用しても使用時のガタツキの発生を抑制することができる杖を提供することを目的とする。   The present invention, in view of the above-mentioned present situation, is a cane having sufficient strength excellent in impact resistance to a force in a direction orthogonal to the axis of the shaft portion, being lightweight, durable and having high rigidity. Furthermore, it is an object of the present invention to provide a cane which has high adhesion strength between the shaft portion and the small diameter portion and can suppress generation of rattling during use even when used for a long time.

上記目的を達成するため、本発明は、下記の構成による杖を提供する。   In order to achieve the above object, the present invention provides a cane according to the following configuration.

シャフト部(2)と、該シャフト部(2)の上端に設けたグリップ部(3)と下端に設けた石突き(4)とを有し、前記シャフト部(2)が、高強度有機繊維強化エポキシ樹脂層(201)と炭素繊維強化エポキシ樹脂層(202)と、最内層となるガラス繊維強化エポキシ樹脂層(203)とで形成した連結・分離可能な2〜7段のシャフト部分(20)から構成され、互いに隣接するシャフト部分(20)は、一方のシャフト部分(20)の第1連結端部(23)に小径部(30)を設け、これに対向する他方のシャフト部分(20)の第2連結端部(24)内へ、前記小径部(30)の前部(302)を挿抜可能に構成した折り畳み式白杖(1)において、
前記小径部(30)を、高強度有機繊維強化エポキシ樹脂を用いて形成し、
前記小径部(30)を設けたシャフト部分(20)の内周面に、切削深さ0.1mm〜0.5mmの螺旋状の凹溝(25)を形成し、
該小径部(30)の後部(301)と、シャフト部分(20)の内周面とを、接着剤(32)を介して接着したことを特徴とする折り畳み式白杖
It has a shaft portion (2), a grip portion (3) provided at the upper end of the shaft portion (2), and a stone stick (4) provided at the lower end, and the shaft portion (2) is a high strength organic fiber Two or seven stages of connectable and separable shaft portions (20 formed by the reinforced epoxy resin layer (201), the carbon fiber reinforced epoxy resin layer (202), and the glass fiber reinforced epoxy resin layer (203) to be the innermost layer (20 And the adjacent shaft portion (20) is provided with a small diameter portion (30) at the first connecting end (23) of one shaft portion (20), and the other shaft portion (20) opposite thereto. A foldable white cane (1) in which the front portion (302) of the small diameter portion (30) can be inserted and removed into the second connection end (24) of
The small diameter portion (30) is formed using a high strength organic fiber reinforced epoxy resin,
In the inner circumferential surface of the shaft portion (20) provided with the small diameter portion (30), a spiral recessed groove (25) having a cutting depth of 0.1 mm to 0.5 mm is formed;
A foldable white cane characterized in that a rear portion (301) of the small diameter portion (30) and an inner peripheral surface of a shaft portion (20) are bonded via an adhesive (32).

本発明によれば、シャフト部分内周面に螺旋状の凹溝を形成し、該シャフト部分内に、接着剤を塗布した小径部を挿入して接着しているので、該螺旋状の凹溝を形成しない接着方法よりも接着強度を高くすることができる。これにより、使用による衝撃でシャフト部分内周面がえぐれてしまうのを防止でき、また、衝撃により接着部分が破損してしまうのを抑制することができる。従って、長期間継続使用しても破損やガタツキを気にすることなく使用することができる。   According to the present invention, since the spiral groove is formed on the inner peripheral surface of the shaft portion, and the small diameter portion coated with the adhesive is inserted and bonded in the shaft portion, the spiral groove is formed. The adhesion strength can be higher than the adhesion method which does not form As a result, it is possible to prevent the inner peripheral surface of the shaft portion from being roughened by impact due to use, and it is possible to suppress damage to the bonded portion due to impact. Therefore, even if used for a long time, it can be used without worrying about breakage or rattling.

また、小径部を高強度有機繊維強化エポキシ樹脂で形成することにより、杖の先端で地面や障害物等を叩いても、その衝撃で小径部が破損するおそれがなく、耐久性に優れた杖を構成することができる。
Also, by forming the small diameter portion with high strength organic fiber reinforced epoxy resin, even if the ground or an obstacle is hit with the tip of the cane, there is no risk of the small diameter portion being damaged by the impact, and the cane excellent in durability. Can be configured.

シャフト部分の本数を2〜7とすることにより、非使用時に小さく折り畳んで収納することが可能となり、小さい収納スペースで持ち運ぶことができる。   By setting the number of shaft portions to 2 to 7, it becomes possible to fold and store small when not in use, and can be carried in a small storage space.

本発明の杖の実施形態を示す、図1(a)は杖の外観図、図1(b)は図1(a)のB部の拡大断面図、図1(c)は図1(a)のA−A線矢視端面図である。1 (a) is an external view of the cane, FIG. 1 (b) is an enlarged cross-sectional view of a portion B of FIG. 1 (a), and FIG. 1 (c) is FIG. The end view in the line AA of FIG. 本発明の杖の実施形態の、連結前の連結端部の断面図である。FIG. 5 is a cross-sectional view of the coupling end of the cane embodiment of the present invention prior to coupling. 本発明の杖の実施形態の、連結状態での連結端部の断面図である。FIG. 7 is a cross-sectional view of the coupled end of the embodiment of the cane of the present invention in the coupled state; 本発明の杖の実施形態を示す、図4(a)は螺旋状の凹溝を形成したシャフト部分の断面図、図4(b)は該シャフト部分に小径部を挿入し始めた状態を示す断面図、図4(c)は該シャフト部分と小径部とを接着した状態を示す断面図である。FIG. 4 (a) is a cross-sectional view of a shaft portion in which a spiral groove is formed, and FIG. 4 (b) shows a state in which a small diameter portion is started to be inserted into the shaft portion. FIG. 4C is a cross-sectional view showing a state in which the shaft portion and the small diameter portion are bonded.

以下、図面に基づいて本発明を具体的に説明する。   Hereinafter, the present invention will be specifically described based on the drawings.

図1(a)は、本発明の実施形態を示す杖の外観図である。
図1(a)に示すように、本発明の実施形態の杖(1)は、シャフト部(2)と、前記シャフト部(2)の上端に設けたグリップ部(3)と、シャフト部(2)の下端に設けた石突き(4)とから構成されており、前記シャフト部(2)は、連結・分離可能な複数のシャフト部分(20)から構成されている(シャフト部分(20)については後述する)。
FIG. 1A is an external view of a wand showing an embodiment of the present invention.
As shown in FIG. 1 (a), the cane (1) according to the embodiment of the present invention includes a shaft portion (2), a grip portion (3) provided on the upper end of the shaft portion (2), The shaft portion (2) is composed of a plurality of connectable and separable shaft portions (20) (a shaft portion (20)) Will be described later).

シャフト部(2)は、例えば、杖(1)の使用者に自転車がぶつかった場合など、軸直交方向に衝撃を受けた場合でも容易に破断しないように、その軸直交方向の力に対する耐衝撃性は10J以上の衝撃吸収エネルギーのものが好ましく、安全性および補修性により優れる点から15J以上のものがより好ましい。なおこの耐衝撃性は、インストロン社の落錘型衝撃試験機(製品名:落錘型衝撃試験機 Dynatup(登録商標)9200シリーズ)等を用いて、JIS K 7055に記載の三点曲げ落錘試験法に準じて測定できる。   The shaft portion (2) is shock resistant to the force in the direction perpendicular to the axial direction so as not to break easily even when impacted in the direction orthogonal to the axis, such as when the user of the wand (1) hits the bicycle The property of impact absorption energy of 10 J or more is preferable, and the property of 15 J or more is more preferable from the point of being excellent in safety and repairability. The impact resistance can be determined by using a drop weight type impact tester (product name: Drop weight type impact tester Dynatup (registered trademark) 9200 series) or the like described in JIS K 7055. It can measure according to a weight test method.

前記グリップ部(3)は、本発明の実施形態に用いることができるものとしてI字形に形成した例を挙げているが、I字型の握持部の太さや角度を変形するなど歩行路面を叩く作業がし易い各種形状に形成したものなどに適宜変更することが可能である。また、必要に応じて、任意の部位に繋ぎ手材やストラップ等を付設してもよいし、グリップ部(3)の長さや太さを、使用者が確りと把持できる寸法に、適宜変更してもよい。   Although the grip portion (3) is an example formed in an I-shape as one that can be used in the embodiment of the present invention, the walking road surface is modified by changing the thickness and angle of the I-shaped grip portion. It is possible to change suitably to what was formed in various shapes etc. which are easy to hit. In addition, if necessary, connecting materials, straps, etc. may be attached to any part, and the length and thickness of the grip portion (3) may be appropriately changed so that the user can firmly hold it. May be

グリップ部(3)に用いる樹脂材料としては、本発明の効果を妨げない限り特に限定されず、例えば、ポリエステル樹脂や、ポリアミド樹脂、アクリル樹脂、ABS樹脂、ポリオレフィン樹脂、ポリブチレンテレフタレート樹脂、ポリエチレンテレフタレート樹脂、ゴム、エラストマー、繊維補強樹脂等が挙げられる。特に、前記グリップ部(3)を、例えば炭素繊維強化樹脂や、高強度有機繊維強化樹脂を用いて形成すると、軽量でありながら高い強度を備えることができ、しかも安価に実施できて好ましい。   The resin material used for the grip portion (3) is not particularly limited as long as the effects of the present invention are not impaired. For example, polyester resin, polyamide resin, acrylic resin, ABS resin, polyolefin resin, polybutylene terephthalate resin, polyethylene terephthalate Resin, rubber, elastomer, fiber reinforced resin etc. are mentioned. In particular, when the grip portion (3) is formed of, for example, a carbon fiber reinforced resin or a high strength organic fiber reinforced resin, it is possible to have high strength while being lightweight, and it is preferable because it can be carried out inexpensively.

前記シャフト部(2)の下端には石突き(4)が装着してある。該石突き(4)の装着方法は本発明の効果を妨げない範囲で適宜設定することができ、例えば、その上端に装着穴が凹設してあり、この装着穴に前記シャフト部(2)の下端を内嵌して、接着剤または両面テープ等でかしめて固定する方法を用いることができる。これにより、摩耗あるいは破損した際には、石突き(4)を取り換えることが可能になる。   At the lower end of the shaft portion (2), a stone stick (4) is attached. The mounting method of the stone stick (4) can be appropriately set in a range that does not interfere with the effects of the present invention, and for example, a mounting hole is recessed at the upper end thereof. A method is used in which the lower end of the is fitted in and fixed by caulking with an adhesive or double-sided tape or the like. This makes it possible to replace the stone stick (4) when worn or broken.

前記石突き(4)の形状は、本発明の効果を妨げない限り特定の形状に限定されないが、路面の溝および階段の滑り止めへの引っ掛かりがない点から円柱形または円錐台形が好ましく、円柱形がより好ましい。さらに、前記石突き(4)の外表面を滑らかな曲面に形成していると、特に好ましい。これにより、路面や階段等の段差部や障害物等に、より引っ掛かりにくくすることができる。   The shape of the stone stick (4) is not limited to a specific shape as long as the effects of the present invention are not disturbed, but a cylindrical or frusto-conical shape is preferable in that there is no catching on road surface grooves and stairs. The shape is more preferred. Furthermore, it is particularly preferable to form the outer surface of the stone block (4) into a smooth curved surface. As a result, it is possible to make it more difficult for the vehicle to get caught on the road surface, the step portion such as the stairs, or the obstacle.

また、石突き(4)の太さと長さについても、本発明の効果を妨げない範囲で適宜設定することができ、例えば、外径は、前記シャフト部(2)の外径よりも大形に形成して、路面に配置された溝蓋の格子などの隙間に容易に嵌り込まない大きさに設定することができる。   In addition, the thickness and length of the stone stick (4) can be appropriately set within the range that does not hinder the effects of the present invention. For example, the outer diameter is larger than the outer diameter of the shaft portion (2) It can be set to a size that does not easily fit into a gap such as a grid of a groove cover arranged on a road surface.

図1(b)は、図1(a)のB部の拡大断面図である。
図1(b)に示すように、前記シャフト部(2)は、高強度有機繊維強化エポキシ樹脂層(201)と炭素繊維強化エポキシ樹脂層(202)とガラス繊維強化エポキシ樹脂層(203)とで形成され、連結・分離可能な2〜7段のシャフト部分(20)から構成されている。前記高強度有機繊維強化エポキシ樹脂層(201)と炭素繊維強化エポキシ樹脂層(202)は、少なくとも1層ずつ設けられており、最も内側にガラス繊維強化エポキシ樹脂層(203)が設けられ、一体的に積層されている。以下、高強度有機繊維強化エポキシ樹脂層を「高強度有機繊維強化樹脂層」と、炭素繊維強化エポキシ樹脂層を「炭素繊維強化樹脂層」と、ガラス繊維強化エポキシ樹脂層を「ガラス繊維強化樹脂層」と称する。
FIG.1 (b) is an expanded sectional view of the B section of FIG. 1 (a).
As shown in FIG. 1 (b), the shaft portion (2) comprises a high strength organic fiber reinforced epoxy resin layer (201), a carbon fiber reinforced epoxy resin layer (202), and a glass fiber reinforced epoxy resin layer (203). , And is composed of 2 to 7 stages of shaft portions (20) which can be connected and separated. The high-strength organic fiber reinforced epoxy resin layer (201) and the carbon fiber reinforced epoxy resin layer (202) are provided at least one by one, and the glass fiber reinforced epoxy resin layer (203) is provided on the innermost side, Are stacked. Hereinafter, the high strength organic fiber reinforced epoxy resin layer is "high strength organic fiber reinforced resin layer", the carbon fiber reinforced epoxy resin layer is "carbon fiber reinforced resin layer", and the glass fiber reinforced epoxy resin layer is "glass fiber reinforced resin" It is called "layer".

前記高強度有機繊維強化樹脂層(201)は、公知の方法によって製造することができる。例えば、パラ系アラミド繊維などの高強度有機繊維に、エポキシ樹脂を含浸させて所定の円筒状に成形し、これを室温〜130℃程度で加熱して樹脂を硬化させた後、所定の長さに切断することで製造する。炭素繊維強化樹脂層(202)やガラス繊維強化樹脂層(203)も同様に製造することができる。
The high strength organic fiber reinforced resin layer (201) can be manufactured by a known method. For example, the high-strength organic fibers, such as para-aramid fibers, after impregnated with epoxy resins and formed into a predetermined cylindrical shape, which was to cure the resin by heating at about room temperature to 130 DEG ° C., a predetermined length Manufactured by cutting. The carbon fiber reinforced resin layer (202) and the glass fiber reinforced resin layer (203) can be produced in the same manner.

前記高強度有機繊維強化樹脂層(201)を構成する有機繊維は、引張強度など機械的強度などが高い有機繊維であればよく、特定の材質のものに限定されない。例えば、超高分子量ポリエチレン繊維、全芳香族ポリアミド繊維、全芳香族ポリエステル繊維、ヘテロ環高性能繊維、ポリアセタール繊維など、任意のものを単独で、あるいは2種以上を組み合わせて用いることができる。前記有機繊維を用いることにより、軽量で且つ高い引張強度を備え、炭素繊維等の無機繊維に比べて伸度があるので、例えば杖の先端で地面等を叩いても、その衝撃で有機繊維に微小クラックを発生させるおそれがなく、耐久性に優れているため好ましい。これにより、シャフト部分(20)およびシャフト部(2)が軸直交方向から衝撃(曲げ衝撃)を受けても、高強度有機繊維強化樹脂層(201)が破断することなく座屈状に変形し、この衝撃を緩和することができる。   The organic fiber which comprises the said high strength organic fiber reinforced resin layer (201) should just be an organic fiber with high mechanical strength, such as tensile strength, and it is not limited to the thing of a specific material. For example, any of ultra high molecular weight polyethylene fibers, wholly aromatic polyamide fibers, wholly aromatic polyester fibers, heterocyclic high performance fibers, polyacetal fibers, etc. can be used singly or in combination of two or more. By using the organic fiber, it has light weight and high tensile strength, and has an elongation compared to inorganic fiber such as carbon fiber. Therefore, even if you hit the ground with a tip of a cane, for example, the organic fiber Since there is no possibility of generating a micro crack and it is excellent in durability, it is preferable. Thereby, even if the shaft portion (20) and the shaft portion (2) receive an impact (bending impact) from the direction orthogonal to the axis, the high strength organic fiber reinforced resin layer (201) is deformed in a buckling shape without breaking. , This shock can be mitigated.

炭素繊維強化樹脂層(202)は、前記高強度有機繊維強化樹脂層(201)とガラス繊維強化樹脂層(203)との間に設けられており、仮にシャフト部分(20)が軸直交方向から衝撃をうけて炭素繊維が折損した場合であっても、炭素繊維強化樹脂層(202)は外周面に一体化した高強度有機繊維強化樹脂層(201)で保護され、シャフト部分(20)は座屈変形するだけで、激しく破断することが防止され、しかも折損した炭素繊維がトゲ状に突出することが防止され、例えば視覚障害者等は、この衝撃をうけて損傷した部位を手探り等で安全に確認することができるため好ましい。また、炭素繊維が有機繊維に比べて弾性率が高いことから高い剛性を備えており、前記高強度有機繊維強化樹脂層(201)を過剰に厚く形成する必要がなくなる。   The carbon fiber reinforced resin layer (202) is provided between the high strength organic fiber reinforced resin layer (201) and the glass fiber reinforced resin layer (203), and temporarily the shaft portion (20) is from the direction orthogonal to the axis. Even if the carbon fiber is broken due to impact, the carbon fiber reinforced resin layer (202) is protected by the high strength organic fiber reinforced resin layer (201) integrated on the outer peripheral surface, and the shaft portion (20) is By only buckling deformation, severe breakage is prevented, and broken carbon fibers are prevented from protruding like a thorn, and for example, a visually impaired person etc. can grope at a damaged part by the impact. It is preferable because it can be confirmed safely. In addition, carbon fibers have high rigidity because they have a higher elastic modulus than organic fibers, and it is not necessary to form the high-strength organic fiber reinforced resin layer (201) excessively thick.

ガラス繊維強化樹脂層(203)は、シャフト部分(20)を構成する繊維強化樹脂層(201・202・203)のなかで、最も内側に設けられている。これにより、内面の耐摩耗性を良好にできるうえ、シャフト部を所定長さ等に切断する際、切断端部の内面で有機繊維がほぐれることを防止でき、この切断端部の形状を良好にできるため好ましい。ガラス繊維強化樹脂層(203)を構成するガラス繊維としては、例えば含アルカリガラス繊維、無アルカリガラス繊維、低誘電ガラス繊維等を用いることができる。   The glass fiber reinforced resin layer (203) is provided at the innermost side among the fiber reinforced resin layers (201, 202, 203) constituting the shaft portion (20). This makes it possible to improve the wear resistance of the inner surface and prevent the organic fibers from being loosened on the inner surface of the cut end when the shaft portion is cut to a predetermined length or the like. It is preferable because it can be done. As glass fiber which comprises a glass fiber reinforced resin layer (203), an alkali-containing glass fiber, an alkali free glass fiber, a low dielectric glass fiber etc. can be used, for example.

前記有機繊維や炭素繊維、ガラス繊維に含浸される樹脂としては、エポキシ樹脂が挙げられる The organic fibers or carbon fibers, the resin is impregnated into glass fibers, et epoxy resins.

上記は、本発明のシャフト部分(20)を、各繊維強化樹脂層(201・202・203)を1層ずつ用いた例を記載したが、本発明は上記の場合に限定されない。例えば、炭素繊維強化樹脂層において、少なくとも外周面に高強度有機繊維強化樹脂層が一体的に積層してあればよいが、その外周面と内周面とにそれぞれ高強度有機繊維強化樹脂層が一体的に積層してあると、この炭素繊維強化樹脂層が内外の高強度有機繊維強化樹脂層で挟持された状態となり、これらの高強度有機繊維強化樹脂層で一層良好に保護されたシャフト部分を形成することもできる。   Although the above described the example which used the shaft part (20) of this invention, and one layer of each fiber reinforced resin layer (201 * 202 * 203), this invention is not limited to said case. For example, in the carbon fiber reinforced resin layer, the high strength organic fiber reinforced resin layer may be integrally laminated on at least the outer peripheral surface, but the high strength organic fiber reinforced resin layer is respectively formed on the outer peripheral surface and the inner peripheral surface. When integrally laminated, the carbon fiber reinforced resin layer is held between the inner and outer high strength organic fiber reinforced resin layers, and the shaft portion protected better by these high strength organic fiber reinforced resin layers Can also be formed.

前記各繊維強化樹脂層(201・202・203)における繊維と樹脂の含有比率は、本発明の効果を妨げない限り特定の値に限定されず、有機繊維や樹脂の種類、成形寸法によっても異なるが、軽量で、且つ充分な曲げ剛性など所望の強度を確保でき、かつ長時間の使用にも耐えられるほど軽量で、破断し難く安全性や補修性に優れる観点から、重量比で80:20〜60:40の範囲内に設定され、より好ましくは75:25〜65:35の範囲内に設定され、さらに好ましくは70:30〜67:33の範囲内に設定される。樹脂含浸量が高すぎると適切な強度を容易に維持することができず、また、樹脂含浸量が低すぎると成形品として形態をなさず、成したとしても、適切な強度が得られないからである。ここで、上記の「適切な強度」とは、本発明の効果を合わせ持つための強度を意味する。   The content ratio of fiber to resin in each of the fiber reinforced resin layers (201, 202, 203) is not limited to a specific value as long as the effects of the present invention are not impaired, and varies depending on the type of organic fiber or resin and molding size However, the weight ratio is 80:20 from the viewpoint of being light weight, capable of securing a desired strength such as sufficient bending rigidity, and of a weight sufficient to withstand long-term use, and being resistant to breakage and excellent in safety and repairability. It is set in the range of 60 to 40:40, more preferably in the range of 75:25 to 65:35, and still more preferably in the range of 70:30 to 67:33. If the resin impregnation amount is too high, the appropriate strength can not be easily maintained, and if the resin impregnation amount is too low, the form does not form as a molded product, and even if it is formed, the appropriate strength can not be obtained. It is. Here, the above-mentioned "appropriate strength" means the strength for achieving the effects of the present invention.

杖(1)の重量と強度は、杖(1)の太さやシャフト部(2)の厚み、各繊維強化樹脂層(201・202・203)の繊維と樹脂との使用比率や厚みのほか、樹脂の種類等によっても異なる。しかし、有機繊維は炭素繊維に比べて比重が小さいので、炭素繊維強化樹脂層(202)を少なくし、高強度有機繊維強化樹脂層(201)を多くすることで、軽量で強度の高い杖(1)が得られる。   The weight and strength of the cane (1) are the thickness of the cane (1), the thickness of the shaft portion (2), the ratio of fiber to resin used in each fiber reinforced resin layer (201, 202, 203) and the thickness, It differs depending on the type of resin, etc. However, organic fibers have a lower specific gravity than carbon fibers, so by reducing the carbon fiber reinforced resin layer (202) and increasing the high strength organic fiber reinforced resin layer (201), a lightweight, high-strength cane ( 1) is obtained.

シャフト部分(20)内および小径部(30)内には、シャフト部分(20)同士を接続しているゴム紐(5)が挿通してある。前記ゴム紐(5)は、シャフト部分(20)同士を容易に分離・連結できる弾力性や伸縮性を備えておればよく、材質や太さは特に限定されず、公知のものを使用することができる。   In the shaft portion (20) and in the small diameter portion (30), a rubber cord (5) connecting the shaft portions (20) with each other is inserted. The rubber cord (5) may have elasticity or stretchability that can easily separate and connect the shaft portions (20), and the material and thickness thereof are not particularly limited, and known ones may be used. Can.

図1(c)は、図1(a)のA−A線矢視端面図である。
図1(c)に示すように、シャフト部分(20)は、杖の軽量化の点から、中空に形成され、中空部(21)とその周囲の外殻部(22)とからなるものが好ましい。このシャフト部の軸直交断面において、前記中空部(21)と外殻部(22)との断面積比率は、本発明の効果を妨げない限り特定の値に限定されないが、軸直交方向からの力に対して十分な強度を有し、かつ長時間の使用にも耐えられるほど軽量である点から、その断面積比率は85:15〜56:44が好ましく、より優れた安全性および補修性も有する点から80:20〜60:40であるとより好ましい。シャフト部全体に対する中空部(21)の断面積比率が56%未満であると、杖を十分に軽量化できないうえ、シャフト部分(20)が硬くなり過ぎて長時間使用すれば疲れやすくなる。一方、シャフト部分(20)全体に対する中空部(21)の断面積比率が85%を超えると、杖が軽量になり過ぎ、かつ、軸直交方向からの力に対する強度が十分でなくなる。また、シャフト部分(20)の断面形状は円断面状であると好ましく、真円断面状であると特に好ましい。これにより、シャフト部分(20)が、どの方向からの衝撃に対しても所望の強度を確保することができる。
FIG. 1C is an end view taken along the line A-A of FIG.
As shown in FIG. 1 (c), the shaft portion (20) is hollow from the viewpoint of weight reduction of the cane, and is composed of a hollow portion (21) and an outer shell portion (22) around it. preferable. The cross-sectional area ratio between the hollow portion (21) and the outer shell portion (22) in the axis orthogonal cross section of the shaft portion is not limited to a specific value as long as the effects of the present invention are not impaired. The cross-sectional area ratio is preferably 85:15 to 56:44 because it has sufficient strength against force and is light enough to withstand long-term use, and it has better safety and repairability. It is more preferable that it is 80:20-60:40 from the point which also has. If the cross-sectional area ratio of the hollow portion (21) to the entire shaft portion is less than 56%, the cane can not be reduced in weight sufficiently, and the shaft portion (20) becomes too hard and fatigued if used for a long time. On the other hand, if the cross-sectional area ratio of the hollow portion (21) to the entire shaft portion (20) exceeds 85%, the cane becomes too lightweight and the strength against the force in the direction perpendicular to the axis becomes insufficient. Further, the cross-sectional shape of the shaft portion (20) is preferably a circular cross-sectional shape, and particularly preferably a true circular cross-sectional shape. Thereby, the shaft portion (20) can secure a desired strength against an impact from any direction.

図2は、本発明の連結・分離可能な複数のシャフト部分(20)における、連結前の連結端部の断面図を示し、図3は、連結状態での連結端部の断面図を示している。   FIG. 2 shows a cross-sectional view of the connection end before connection in the plurality of connectable / separable shaft portions (20) of the present invention, and FIG. 3 shows a cross-sectional view of the connection end in the connection state. There is.

図2および図3に示すように、シャフト部分(20)に接着された小径部(30)の、第1連結端部(23)から外方へ突出させた非接着部分(隣接する他のシャフト部分(20)内に挿入される小径部(30)の前部(以下、インナーパイプ(302)と称する。))は、前記シャフト部分(20)の内径と略等しい外径に形成してあり、隣接する他方のシャフト部分(20)の第2連結端部(24)側から挿抜可能に構成している。即ち、前記第2連結端部(24)内にインナーパイプ(302)を挿入することで、シャフト部分(20)同士が連結され、インナーパイプ(302)を抜きとることでシャフト部分(20)同士が分離される、いわゆる折り畳み式杖にすることができる。前記シャフト部分(20)の数、即ち折り畳み段数は、特定の値に限定されず、杖の長さと携帯時の寸法とから、例えば2段〜7段など、任意の段数に適宜設定される。前記シャフト部を複数のシャフト部分から構成した折り畳み式の杖とすることで、不使用時に杖を折り畳んでコンパクトにでき、容易に携帯できるため好ましい。   As shown in FIGS. 2 and 3, the non-adhered portion (the adjacent other shaft) of the small diameter portion (30) adhered to the shaft portion (20) protrudes outward from the first connecting end (23) The front portion (hereinafter referred to as an inner pipe (302)) of the small diameter portion (30) inserted into the portion (20) is formed to have an outer diameter substantially equal to the inner diameter of the shaft portion (20) It is comprised so that insertion and removal are possible from the 2nd connection end part (24) side of other adjacent shaft part (20). That is, by inserting the inner pipe (302) into the second connection end (24), the shaft portions (20) are connected to each other, and the inner pipe (302) is pulled out. It can be a so-called foldable cane that is separated. The number of shaft portions (20), that is, the number of folding steps is not limited to a specific value, and is appropriately set to an arbitrary number of steps such as 2 to 7 from the length of the cane and the dimensions at the time of carrying. It is preferable that the shaft portion be a foldable cane composed of a plurality of shaft portions, since the cane can be folded and made compact when not in use and can be easily carried.

インナーパイプ(302)の突出長さは、シャフト部分(20)同士を強固と連結できる長さが必要であり、通常、40〜60mm程度に設定することが好ましい。また、図2および図3では、該インナーパイプ(302)の表面に樹脂コーティング層(31)を形成しているので、第2連結端部(24)内周面とインナーパイプ(302)との密着性が向上し、使用時のガタツキを防止することができる。前記樹脂コーティング層(31)は、シャフト部分(20)と小径部(30)の後部(以下、接着部分(301)と称する。)とを接着させ、完全に乾燥させたのち、塗布することが好ましく、樹脂コーティング層(31)の外周面に、例えば、市販のシリコーングリース等の潤滑層を設けていてもよい。   The projection length of the inner pipe (302) needs to be such a length that the shaft portions (20) can be firmly connected to each other, and it is usually preferable to set to about 40 to 60 mm. Further, in FIGS. 2 and 3, since the resin coating layer (31) is formed on the surface of the inner pipe (302), the second connection end (24) and the inner pipe (302) Adhesion is improved, and rattling during use can be prevented. The resin coating layer (31) may be applied after bonding the shaft portion (20) and the rear portion of the small diameter portion (30) (hereinafter referred to as the adhesive portion (301)), drying completely, Preferably, a lubricating layer such as commercially available silicone grease may be provided on the outer peripheral surface of the resin coating layer (31).

前記樹脂コーティング層(31)を形成する樹脂としては、耐水性および耐熱性に優れている点より、エポキシ樹脂、変性エポキシ樹脂、ポリウレタン樹脂等が好ましく用いられる。コーティング層は、上記の樹脂、或いは上記の樹脂を溶媒に溶解させたコーティング剤を、刷毛塗り、吹付塗り、浸漬塗り等の方法で塗布し、乾燥することにより、形成することができる。特にポリウレタン樹脂は、塗膜の弾性に優れているうえに、ポリウレタン樹脂に硬化剤を配合した1液型、或いは、ポリウレタン樹脂と硬化剤とを使用時に混合する2液型のコーティング剤を、上記の方法で塗布し、1日程度乾燥するだけでコーティング層を短時間で形成することができ、しかも安価に実施できる。   As a resin for forming the resin coating layer (31), an epoxy resin, a modified epoxy resin, a polyurethane resin or the like is preferably used from the viewpoint of being excellent in water resistance and heat resistance. The coating layer can be formed by applying the above-described resin or a coating agent in which the above-described resin is dissolved in a solvent by a method such as brush coating, spray coating, or dip coating, and drying. In particular, the polyurethane resin is excellent in the elasticity of a coating film, and is a one-component type in which a curing agent is blended with a polyurethane resin, or a two-component coating agent in which a polyurethane resin and a curing agent are mixed at the time of use. The coating layer can be formed in a short time only by applying by the method of (1) and drying for about a day, and furthermore, it can be carried out inexpensively.

前記シャフト部分(20)同士の連結部分、第1連結端部(23)と第2連結端部(24)との間にゴム製リング等の緩衝材を介在させることもできる。これにより、連結部分の密着性を高める効果がある。このゴム製リングは、摩耗あるいは破損した際には取り換え可能である。   A shock absorbing material such as a rubber ring may be interposed between the connecting portions of the shaft portions (20) and between the first connecting end (23) and the second connecting end (24). This has the effect of enhancing the adhesion of the connecting part. This rubber ring can be replaced when worn or broken.

前記第1連結端部(23)および第2連結端部(24)など、杖(1)の一部に応力が集中することを防止するため、応力が集中し易い連結部分、特に石付きに最も近い連結部分にジョイントカバーを用いることもできる。これにより、使用時の衝撃に対して外側から確りと補強して、機械的強度を高めることもでき、応力集中による杖(1)の破損とこれに伴う使用者の転倒のおそれを低減できるため、安全に杖を用いることができる。   In order to prevent stress concentration on a part of the cane (1), such as the first connection end (23) and the second connection end (24), it is possible to use a connection portion where stress is easily concentrated, particularly with a stone A joint cover can also be used at the closest connection part. As a result, the mechanical strength can be enhanced by firmly reinforcing the impact from the outside from the outside, and it is possible to reduce the risk of breakage of the cane (1) due to stress concentration and the fall of the user accompanying this. You can use a cane safely.

図4は、内面に螺旋状の凹溝(25)を形成したシャフト部分(20)に小径部(30)を挿入し、接着するまでを示す説明図である。図4(a)に示すように、本発明の杖のシャフト部分(20)の第1連結端部(23)側内周面には、小径部(30)との接着性を向上させるための螺旋状の凹溝(25)を形成している。この螺旋状の凹溝(25)を設けることにより、外周面に接着剤(32)を塗布した小径部(30)の接着部分(301)を、シャフト部分(20)内に挿入する際に、凹溝(25)に接着剤(32)が入り込み、シャフト部分(20)の内周面と接着部分(301)の外周面との接着性が向上することで、杖のガタツキの発生を抑制することができる。また、前記凹溝(25)の形状を螺旋状に形成にすることで、シャフト部分(20)軸方向の中心位置に向かって接着剤(32)が入り込み易くなる。   FIG. 4 is an explanatory view showing up to the step of inserting the small diameter portion (30) into the shaft portion (20) having the spiral recessed groove (25) formed on the inner surface and bonding. As shown in FIG. 4 (a), on the first connecting end (23) side inner circumferential surface of the shaft portion (20) of the cane of the present invention, the adhesion to the small diameter portion (30) is improved. A spiral groove (25) is formed. When the adhesive portion (301) of the small diameter portion (30) coated with the adhesive (32) on the outer peripheral surface is inserted into the shaft portion (20) by providing the spiral recessed groove (25), The adhesive (32) enters the recessed groove (25) to improve the adhesion between the inner circumferential surface of the shaft portion (20) and the outer circumferential surface of the adhesive portion (301), thereby suppressing the generation of rattling of the cane. be able to. Further, by forming the concave groove (25) in a spiral shape, the adhesive (32) can easily enter toward the central position in the axial direction of the shaft portion (20).

前記螺旋状の凹溝(25)を形成する方法としては、本発明の効果を妨げない限り特定の方法に限定されず、例えば、ねじ切り用のタップ等を用いて形成することができる。   The method of forming the spiral recessed groove (25) is not limited to a specific method as long as the effects of the present invention are not impaired. For example, it can be formed using a threading tap or the like.

前記螺旋状の凹溝(25)の切削深さについては、本発明の効果を妨げない限り特に限定されないが、シャフト部分(20)を形成するガラス繊維強化樹脂層と略同等の深さであることが好ましく、具体的には0.1mm〜0.5mmである。0.1mmよりも小さい場合には、接着剤が凹溝内に入り込んでも十分な接着強度が発揮されず、0.5mmを超える場合には、シャフト部分(20)そのものの強度を低下させるおそれがある。
The cutting depth of the spiral groove (25) is not particularly limited as long as the effect of the present invention is not impaired, but the depth is substantially the same as the glass fiber reinforced resin layer forming the shaft portion (20). It is preferably 0.1 mm to 0.5 mm. If it is smaller than 0.1 mm, sufficient adhesive strength is not exhibited even if the adhesive gets into the ditch, and if it exceeds 0.5 mm, the strength of the shaft portion (20) itself may be reduced. is there.

前記凹溝(25)の形成長さとしては、本発明の効果を妨げない限り限定されないが、シャフト部分(20)内に固定された小径部(30)の長さ、つまり接着部分(301)の長さよりも若干長く形成することが好ましい。通常、第1連結端部(23)側から40mm〜70mm程度、より好ましくは45mm〜65mm程度、特に好ましくは50mm〜60mm程度にするのがよい。40mm未満の場合には形成した螺旋状の凹溝(25)の表面積が少なくなるため、接着剤(32)が入り込んでも十分な接着強度が得られにくい。一方、シャフト部分(20)内に挿入される小径部(30)の長さを著しく超えることは、不必要な切削となるだけでなく作業効率も低下する。   The formation length of the concave groove (25) is not limited as long as the effects of the present invention are not impaired, but the length of the small diameter portion (30) fixed in the shaft portion (20), ie, the bonding portion (301) It is preferable to form slightly longer than the length of. Usually, about 40 mm to 70 mm, more preferably about 45 mm to 65 mm, and particularly preferably about 50 mm to 60 mm from the first connection end (23) side. If it is less than 40 mm, the surface area of the formed spiral concave groove (25) decreases, so that it is difficult to obtain sufficient adhesive strength even if the adhesive (32) enters. On the other hand, significantly exceeding the length of the small diameter portion (30) inserted into the shaft portion (20) not only results in unnecessary cutting but also reduces the working efficiency.

図4(b)は、螺旋状の凹溝(25)を形成したシャフト部分(20)内に、小径部(30)の接着剤(32)を塗布した接着部分(301)を挿入し始めた状態の断面図を示しており、このとき、インナーパイプ(302)には樹脂コーティング層は塗布されていない。なお、前記小径部(30)の接着剤(32)を塗布しなかった部分(インナーパイプ(302))は、上述した樹脂コーティング層が塗布され、隣接する他のシャフト部分(20)の第2連結端部(24)内に挿入される。   FIG. 4 (b) shows that the adhesive portion (301) coated with the adhesive (32) of the small diameter portion (30) starts to be inserted into the shaft portion (20) in which the spiral groove (25) is formed. A cross-sectional view of the state is shown, in which the inner pipe (302) is not coated with a resin coating layer. The resin coating layer described above is applied to the portion (inner pipe (302)) on which the adhesive (32) of the small diameter portion (30) is not applied, and the second of the adjacent other shaft portions (20) is applied. It is inserted into the coupling end (24).

図4(c)は、接着剤(32)を塗布した小径部(30)の接着部分(301)を、シャフト部分(20)内に挿入し終えた後、差し込み口に滲み出た接着剤(32)を拭き取り、乾燥してシャフト部分(20)と小径部(30)とを接着した状態を示している。   FIG. 4 (c) shows the adhesive (30) after the adhesive portion (301) of the small diameter portion (30) coated with the adhesive (32) is completely inserted into the shaft portion (20), 32) Wipe off and dry to show that the shaft portion (20) and the small diameter portion (30) are adhered.

前記小径部(30)は、使用による第1連結端部(23)付近に負荷がかかり亀裂等の破損を生じる可能性があるため、シャフト部分(20)とは別々に製造したのち、小径部(30)の略半分の長さまで接着剤(32)を塗布し、接着することが好ましい。   The small diameter portion (30) may be loaded around the first connection end (23) by use and may cause breakage such as cracks, so the small diameter portion may be produced separately from the shaft portion (20). It is preferable to apply and bond the adhesive (32) up to about half the length of (30).

前記接着剤(32)としては、本発明の効果を妨げない限り特に限定されず、例えば、市販のエポキシ系接着剤、エポキシ系化学反応型接着剤、スチレンブタジエンゴム系接着剤、シリル化ウレタン樹脂系接着剤等などを用いることができる。   The adhesive (32) is not particularly limited as long as the effects of the present invention are not impaired. For example, a commercially available epoxy adhesive, epoxy chemical reaction adhesive, styrene butadiene rubber adhesive, silylated urethane resin A system adhesive etc. can be used.

以下、実施例および比較例を用いて本発明を更に具体的に説明するが、本発明は以下の実施例のみに限定されるものではない。   Hereinafter, the present invention will be more specifically described using examples and comparative examples, but the present invention is not limited to the following examples.

(実施例1)
シャフト部分と小径部との接着強度を以下の方法で試験した。
内径10mm×長さ200mmのシャフト部分の第1連結端部側から、10mmのねじ切りタップを用いて深さ(長さ)55mmまで凹溝を切削し、切り粉などをエアで吹き飛ばしたものを、接着用のシャフト部分とした。
外径約9.6mm〜9.9mm×長さ100mmの小径部の一端から、全長の1/2長さ(50mm)の部分までエポキシ樹脂系接着剤を塗布したものを、接着用の小径部とした。
前記シャフト部分内に小径部を挿入し、挿し込む際に挿し込み口ににじみ出た接着剤を拭き取り、48時間以上乾燥させたもので最大荷重を計測し試験した。この時計測した最大荷重を接着力とした。
Example 1
The adhesive strength between the shaft portion and the small diameter portion was tested by the following method.
From the side of the first connection end of the shaft portion with an inner diameter of 10 mm × length 200 mm, cut the concave groove to a depth (length) of 55 mm using a 10 mm threading tap, blow away chips and the like with air, It was a shaft part for bonding.
A small diameter portion for adhesion that has an epoxy resin adhesive applied from one end of a small diameter portion with an outer diameter of about 9.6 mm to 9.9 mm and a length of 100 mm to a half length (50 mm) portion of the total length And
The small diameter portion was inserted into the shaft portion, and the adhesive exuded to the insertion port was wiped off when inserted, and the maximum load was measured and tested using those dried for 48 hours or longer. The maximum load measured at this time was taken as the adhesive strength.

(実施例2)
エポキシ系化学反応型接着剤を用いた以外は、実施例1と同様の構成で試験した。
(Example 2)
It tested by the structure similar to Example 1 except having used an epoxy type chemical reaction type adhesive agent.

(実施例3)
スチレンブタジエンゴム系接着剤を用いた以外は、実施例1と同様の構成で試験した。
(Example 3)
It tested by the structure similar to Example 1 except having used the styrene butadiene rubber-type adhesive agent.

(実施例4)
シリル化ウレタン樹脂系接着剤を用いた以外は、実施例1と同様の構成で試験した。
(Example 4)
It tested by the structure similar to Example 1 except having used the silylated urethane resin adhesive.

(比較例)
前記シャフト部分の内周面に凹溝を形成していないものを用いた以外は、実施例と同様の構成で試験した。
(Comparative example)
It tested by the structure similar to an Example except having used what did not form the ditch | groove in the internal peripheral surface of the said shaft part.

〔接着力計測試験〕
前記の方法で接着・固定したシャフト部分及び小径部を、引張試験機(インストロン社製、型式:5966)に圧縮試験用治具を取り付け垂直に立てた状態で押圧速度100mm/分で試験した。このときの最大荷重(N)を接着力とした。また前記試験を複数回行い最大荷重(N)の平均を算出した。試験結果を表1に示す。
[Adhesive force measurement test]
The shaft portion and the small diameter portion bonded and fixed by the above method were tested at a pressing speed of 100 mm / min in a state in which a compression test jig was attached to a tensile tester (manufactured by Instron, model: 5966) and stood upright. . The maximum load (N) at this time was taken as the adhesive strength. Moreover, the said test was carried out multiple times and the average of the largest load (N) was computed. The test results are shown in Table 1.

Figure 0006547103
Figure 0006547103

表1の結果から明らかなように、凹溝を形成した実施例の接着強度は、凹溝を形成していない比較例に比べて高いことがわかった。   As apparent from the results of Table 1, it was found that the adhesive strength of the example in which the recessed groove was formed was higher than that of the comparative example in which the recessed groove was not formed.

上記の実施形態で説明した杖は、本発明の技術的思想を具体化するために例示したものであり、各部の形状や寸法、積層数などをこの実施形態のものに限定するものではなく、本発明の特許請求の範囲内において種々の変更を加え得るものである。 The cane described in the above embodiment is illustrated to embody the technical idea of the present invention, and the shape, size, number of layers, etc. of each part are not limited to those of this embodiment, in which that many changes and modifications may be made within the scope of the claims.

本発明の杖は、視覚障害者用白杖のほか、登山、スキー等のスポーツ用または通常歩行用の杖として有用である。また、本発明の杖は、使用者の肉体的負担を軽減でき、特に高齢者、年少者、視覚障害者に対しても効果は大きく、自立支援を促進し、要介護者の社会参加および労働生産力の向上のためにも有用である。   The cane of the present invention is useful as a white cane for the visually impaired, and also as a cane for climbing or sports such as skiing or for walking normally. In addition, the cane of the present invention can reduce the physical burden of the user, and is particularly effective for elderly people, young people and visually impaired people, and promotes independence support, and social participation and labor of the care recipient. It is also useful for improving productivity.

1 杖
2 シャフト部
3 グリップ部
4 石突き
5 ゴム紐
20 シャフト部分
21 中空部
22 外殻部
23 第1連結端部
24 第2連結端部
25 凹溝
30 小径部
31 樹脂コーティング層
32 接着剤
201 高強度有機繊維強化樹脂層
202 炭素繊維強化樹脂層
203 ガラス繊維強化樹脂層
301 後部(接着部分)
302 前部(インナーパイプ)
Reference Signs List 1 cane 2 shaft portion 3 grip portion 4 stone stick 5 rubber string 20 shaft portion 21 hollow portion 22 outer shell portion 23 first connection end portion 24 second connection end portion 25 recessed groove 30 small diameter portion 31 resin coating layer 32 adhesive 201 High strength organic fiber reinforced resin layer 202 Carbon fiber reinforced resin layer 203 Glass fiber reinforced resin layer 301 Rear (adhesion part)
302 Front (inner pipe)

Claims (1)

シャフト部(2)と、該シャフト部(2)の上端に設けたグリップ部(3)と下端に設けた石突き(4)とを有し、前記シャフト部(2)が、高強度有機繊維強化エポキシ樹脂層(201)と炭素繊維強化エポキシ樹脂層(202)と、最内層となるガラス繊維強化エポキシ樹脂層(203)とで形成した連結・分離可能な2〜7段のシャフト部分(20)から構成され、互いに隣接するシャフト部分(20)は、一方のシャフト部分(20)の第1連結端部(23)に小径部(30)を設け、これに対向する他方のシャフト部分(20)の第2連結端部(24)内へ、前記小径部(30)の前部(302)を挿抜可能に構成した折り畳み式白杖(1)において、
前記小径部(30)を、高強度有機繊維強化エポキシ樹脂を用いて形成し、
前記小径部(30)を設けたシャフト部分(20)の内周面に、切削深さ0.1mm〜0.5mmの螺旋状の凹溝(25)を形成し、
該小径部(30)の後部(301)と、シャフト部分(20)の内周面とを、接着剤(32)を介して接着したことを特徴とする折り畳み式白杖
It has a shaft portion (2), a grip portion (3) provided at the upper end of the shaft portion (2), and a stone stick (4) provided at the lower end, and the shaft portion (2) is a high strength organic fiber Two or seven stages of connectable and separable shaft portions (20 formed by the reinforced epoxy resin layer (201), the carbon fiber reinforced epoxy resin layer (202), and the glass fiber reinforced epoxy resin layer (203) to be the innermost layer (20 And the adjacent shaft portion (20) is provided with a small diameter portion (30) at the first connecting end (23) of one shaft portion (20), and the other shaft portion (20) opposite thereto. A foldable white cane (1) in which the front portion (302) of the small diameter portion (30) can be inserted and removed into the second connection end (24) of
The small diameter portion (30) is formed using a high strength organic fiber reinforced epoxy resin,
In the inner circumferential surface of the shaft portion (20) provided with the small diameter portion (30), a spiral recessed groove (25) having a cutting depth of 0.1 mm to 0.5 mm is formed;
A foldable white cane characterized in that a rear portion (301) of the small diameter portion (30) and an inner peripheral surface of a shaft portion (20) are bonded via an adhesive (32).
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