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JP6761525B1 - Wheeled cane - Google Patents

Wheeled cane Download PDF

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JP6761525B1
JP6761525B1 JP2019170755A JP2019170755A JP6761525B1 JP 6761525 B1 JP6761525 B1 JP 6761525B1 JP 2019170755 A JP2019170755 A JP 2019170755A JP 2019170755 A JP2019170755 A JP 2019170755A JP 6761525 B1 JP6761525 B1 JP 6761525B1
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main body
pin
body leg
leg
front axle
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JP2021045404A (en
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建昌 何
建昌 何
立生 銭
立生 銭
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フジホーム株式会社
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Abstract

【課題】ピン係止孔の操作ピンへの係止又は操作ピンの本体脚への没入によるピン係止孔からの離脱だけで、本体脚のフロント車軸への揺動を阻止又は許容する。【解決手段】パイプ状の本体脚12の一対の車軸用長孔12cにフロント車軸24を遊挿し、本体脚をフロント車軸に対して横方向に揺動可能に第1ピン21が保持する。本体脚に略コ字状のレバー部材26を回動可能に取付け、第1ばねの弾性力により上方に突出する方向に付勢される操作ピン27を本体脚に出没可能に取付ける。レバー部材に形成されたピン係止孔26aの孔縁が操作ピンの上部に係止し、レバー部材を上方に回転するように第2ばね32が付勢する。操作ピンを本体脚に没入させたときに、操作ピンの上部がピン係止孔から外れ、レバー部材が第2ばねの弾性力により上方に回転して、本体脚のフロント車軸に対する揺動が許容されるように構成される。【選択図】図1PROBLEM TO BE SOLVED: To prevent or allow swing of a main body leg to a front axle only by locking the pin locking hole to an operation pin or disengaging the operation pin from the pin locking hole by immersing the operation pin in the main body leg. SOLUTION: A front axle 24 is loosely inserted into a pair of long axle holes 12c of a pipe-shaped main body leg 12, and a first pin 21 holds the main body leg so as to swing laterally with respect to the front axle. A substantially U-shaped lever member 26 is rotatably attached to the main body leg, and an operation pin 27 urged in a direction of projecting upward by the elastic force of the first spring is attached to the main body leg so as to be able to appear and disappear. The hole edge of the pin locking hole 26a formed in the lever member is locked to the upper part of the operation pin, and the second spring 32 is urged so as to rotate the lever member upward. When the operation pin is immersed in the main body leg, the upper part of the operation pin comes off from the pin locking hole, and the lever member rotates upward due to the elastic force of the second spring, allowing the main body leg to swing with respect to the front axle. It is configured to be. [Selection diagram] Fig. 1

Description

本発明は、一対の前輪を有するか或いは一対の前輪及び一対の後輪の合計4つの車輪を有し、ある程度体重を掛けながら歩行できるとともに、常に手摺りにつかまっているような感覚で使用できる杖に関するものである。 The present invention has a pair of front wheels or a pair of front wheels and a pair of rear wheels, for a total of four wheels, so that the person can walk while carrying a certain amount of weight and can be used as if he / she is always held by a handrail. It's about a cane.

従来、杖本体及び支え棒の先端両側に車輪が2つずつ取付けられ、側面視で底辺を有する三角形状に形成され、ハンドル操作可能な車輪のついた杖が開示されている(例えば、特許文献1(請求項1、段落[0016]、図1〜図7)参照。)。この車輪のついた杖では、ハンドル操作する杖本体の先端に進行方向に向けて、中央で軸線に直角に穴をあけた揺動軸が軸着され、この揺動軸と直交する杖本体の両側面に縦長の長穴が形成される。この長穴と上記穴を貫通して杖本体の両横へ突出した車軸の両側に車輪が取付けられ、車輪が揺動機構により揺動可能に構成される。また、上記揺動機構を働かせ又は止める装置として、一方が開いたコの字形の枠状で上方を杖本体にピン軸で軸着した揺動止具が設けられる。この揺動止具を下方に回転させて杖本体に嵌め込むことにより枠の下側で車軸を抑えて揺動を止め、上方に回転させて嵌め込みを外すと枠の下側が車軸から離れて揺動できるようになっている。即ち、操作レバーが水平であるとき、揺動止具が車軸の上側にあり、揺動止具の両側のくぼみに車軸の上部湾曲面が当たって車軸の揺動が止められ、操作レバーを上方に回転させたときに、揺動止具のくぼみが車軸から外れて解放され、車軸が揺動するように構成される。 Conventionally, there has been disclosed a cane in which two wheels are attached to both sides of a cane body and a tip of a support rod, the cane is formed in a triangular shape having a base in a side view, and the cane has wheels that can be operated by a handle (for example, Patent Document). 1 (see claim 1, paragraph [0016], FIGS. 1 to 7). In this cane with wheels, a swinging shaft with a hole at the center perpendicular to the axis is attached to the tip of the cane body that operates the handle in the direction of travel, and the cane body is orthogonal to this swinging axis. Vertically long holes are formed on both sides. Wheels are attached to both sides of the long hole and the axle protruding to both sides of the cane body through the hole, and the wheels are configured to be swingable by a swing mechanism. Further, as a device for activating or stopping the swing mechanism, a swing stopper having a U-shaped frame on one side and the upper side of which is pivotally attached to the cane body with a pin shaft is provided. By rotating this rocking stopper downward and fitting it into the cane body, the axle is suppressed under the frame to stop the swing, and when it is rotated upward and the fitting is removed, the lower side of the frame swings away from the axle. It is designed to move. That is, when the operating lever is horizontal, the swing stop is on the upper side of the axle, and the upper curved surfaces of the axle hit the recesses on both sides of the swing stop to stop the swing of the axle and move the control lever upward. When rotated to, the recess of the rocking stopper is released from the axle so that the axle swings.

このように構成された車輪のついた杖では、操作レバーが下方に回転して水平になると、揺動止具が車軸の上側に位置し、揺動止具の両側のくぼみに車軸の上部湾曲面が当たって車軸の揺動が止められる。即ち、重い荷物を掛けたときや、杖を立てたまま置くときは、揺動止具により車軸を抑えて揺動を止めることにより、杖は倒れ難くなる。一方、操作レバーを上方に回転させると、揺動止具のくぼみが車軸から外れて解放され、車軸が揺動する。即ち、揺動止具を車軸から離すことにより、ハンドル側を自由に傾けることができ、その状態で前2輪が常に着地しているので、使い易く、安心感を使用者に与える。 In a cane with wheels configured in this way, when the operating lever rotates downward and becomes horizontal, the rocking stop is located above the axle, and the indentations on both sides of the swinging stop bend the upper part of the axle. The surface hits and the swing of the axle is stopped. That is, when a heavy load is hung or the cane is placed upright, the cane is less likely to fall by holding the axle with the rocking stopper to stop the swinging. On the other hand, when the operating lever is rotated upward, the recess of the rocking stopper is released from the axle, and the axle swings. That is, by separating the rocking stopper from the axle, the steering wheel side can be freely tilted, and the front two wheels are always landing in that state, so that it is easy to use and gives the user a sense of security.

特許第3956175号公報Japanese Patent No. 3956175

しかし、上記特許文献1に示された車輪のついた杖では、揺動止具を下方に回転させて杖本体に嵌め込むときに大きな力を必要とするとともに、揺動止具を上方に回転させて杖本体への嵌め込みを外すときに大きな力を必要とし、車輪のついた杖を使用する高齢者にとって、改善が求められていた。また、上記特許文献1に示された車輪のついた杖では、揺動止具を上方に回転させて杖本体への嵌め込みを外した状態で、杖のハンドルから手を離すと、杖本体を垂直に立てた状態であっても、杖本体がピン軸に対して揺動軸を中心に自由に揺動できるため、杖本体の僅かなバランスの崩れで杖が倒れてしまう問題点もあった。 However, in the cane with wheels shown in Patent Document 1, a large force is required when the rocking stopper is rotated downward and fitted into the cane body, and the rocking stopper is rotated upward. It requires a large amount of force to remove the fitting into the cane body, and improvement has been sought for elderly people who use canes with wheels. Further, in the cane with wheels shown in Patent Document 1, when the cane body is released from the cane handle in a state where the swing stopper is rotated upward to remove the fitting into the cane body, the cane body is released. Even when standing vertically, the cane body can swing freely around the swing axis with respect to the pin axis, so there was also the problem that the cane would fall over due to a slight imbalance of the cane body. ..

本発明の第1の目的は、レバー部材を操作して操作ピンにピン係止孔を係止させるか又は操作ピンを本体脚に没入させてピン係止孔から離脱させるだけで、本体脚のフロント車軸に対する揺動を阻止又は許容できる、車輪付き杖を提供することにある。本発明の第2の目的は、比較的小さい力で操作ピンにピン係止孔の孔縁を係止させることができるとともに、比較的小さい力で操作ピンをピン係止孔から離脱させることができる、車輪付き杖を提供することにある。本発明の第3の目的は、本体脚のフロント車軸に対する揺動を許容した状態で、把持部から手を離しても、本体脚のフロント車軸に対する揺動を阻止したときより安定感はないけれども、杖を自立した状態に保つことができる、車輪付き杖を提供することにある。本発明の第4の目的は、本体脚のフロント車軸に対する揺動を許容した状態で、車輪付き杖を持ち上げたときに、フロント車軸が前輪とともに左右に揺動するのを第3ばねの弾性力により阻止できる、車輪付き杖を提供することにある。 The first object of the present invention is to operate the lever member to lock the pin locking hole in the operation pin, or to immerse the operation pin in the main body leg and release it from the pin locking hole. The purpose is to provide a wheeled cane that can prevent or tolerate rocking with respect to the front axle. A second object of the present invention is to be able to lock the edge of the pin locking hole to the operation pin with a relatively small force, and to disengage the operation pin from the pin locking hole with a relatively small force. It is to provide a cane with wheels that can be done. A third object of the present invention is that even if the body leg is allowed to swing with respect to the front axle, even if the hand is released from the grip portion, the feeling of stability is less than when the body leg is prevented from swinging with respect to the front axle. The purpose is to provide a wheeled cane that can keep the cane self-supporting. A fourth object of the present invention is the elastic force of the third spring that causes the front axle to swing left and right together with the front wheels when the cane with wheels is lifted while allowing the main body leg to swing with respect to the front axle. Is to provide a cane with wheels that can be blocked by.

本発明の第1の観点は、図1〜図6及び図11に示すように、上端に把持部11が設けられ下端に横方向に並んで一対の前輪19,19が設けられたパイプ状の本体脚12を備えた車輪付き杖10、図16に示すように車輪付き杖60において(以下、同じ)、本体脚12の下端近傍に本体脚12の長手方向に延びかつ横方向に互いに対向して形成された一対の車軸用長孔12c,12cと、一対の車軸用長孔12c,12cに遊挿され一対の前輪19,19を回転可能に支持するフロント車軸24と、本体脚12及びフロント車軸24にこれらの直交する方向から挿通され本体脚12をフロント車軸24に対して横方向に揺動可能に保持する第1ピン21と、車軸用長孔12cより上方の本体脚12にフロント車軸24と平行に挿通された第2ピン22と、車軸用長孔12cより上方の本体脚12の外周面を挟むように上下方向に回動可能に本体脚12に取付けられ上方に回転することによりフロント車軸24から離れて本体脚12のフロント車軸24に対する揺動を許容する位置に達し下方に回転することによりフロント車軸24に係合して本体脚12のフロント車軸24に対する揺動を阻止する位置に達する略コ字状のレバー部材26と、本体脚12に出没可能に取付けられ第1ばね31の弾性力により上方に突出する方向に付勢される操作ピン27と、レバー部材26に形成され操作ピン27の上部が挿入可能であって挿入時に操作ピン27の上部に孔縁が係止可能なピン係止孔26aと、レバー部材26を上方に回転するように付勢する第2ばね32と、本体脚12に内蔵されかつ第2ピン22とフロント車軸24との間に介装され本体脚12内に位置するフロント車軸24のうち少なくとも本体脚12の内壁面近傍に位置する部分を下方又は上方に略均等に付勢する第3ばね33と備え、操作ピン27を本体脚12に没入させたときに、操作ピン27の上部がピン係止孔26aから外れ、レバー部材26が第2ばね32の弾性力により上方に回転して、本体脚12のフロント車軸24に対する揺動が許容されるように構成されたことを特徴とする。 As shown in FIGS. 1 to 6 and 11, the first aspect of the present invention is a pipe-like structure in which a grip portion 11 is provided at the upper end and a pair of front wheels 19 and 19 are provided side by side at the lower end. In the wheeled cane 10 provided with the main body leg 12 and the wheeled cane 60 as shown in FIG. 16 (hereinafter, the same applies), the main body leg 12 extends in the longitudinal direction and faces each other laterally near the lower end of the main body leg 12. A pair of long axle holes 12c, 12c, a front axle 24 loosely inserted into a pair of long axle holes 12c, 12c to rotatably support a pair of front wheels 19, 19 and a main body leg 12 and a front. The first pin 21 which is inserted into the axle 24 from these orthogonal directions and holds the main body leg 12 so as to be swingable in the lateral direction with respect to the front axle 24, and the front axle 12 on the main body leg 12 above the long axle hole 12c. By being attached to the main body leg 12 so as to sandwich the outer peripheral surface of the main body leg 12 above the long hole 12c for the axle and the second pin 22 inserted in parallel with the 24, and rotating upward. A position that separates from the front axle 24 to reach a position that allows the main body leg 12 to swing with respect to the front axle 24, and by rotating downward, engages with the front axle 24 and prevents the main body leg 12 from swinging with respect to the front axle 24. It is formed on the lever member 26, a substantially U-shaped lever member 26 that reaches, an operation pin 27 that is attached to the main body leg 12 so as to be retractable and is urged in a direction of projecting upward by the elastic force of the first spring 31. A pin locking hole 26a in which the upper part of the operation pin 27 can be inserted and a hole edge can be locked in the upper part of the operation pin 27 at the time of insertion, and a second spring 32 for urging the lever member 26 to rotate upward. And, the portion of the front axle 24 that is built in the main body leg 12 and is interposed between the second pin 22 and the front axle 24 and is located in the main body leg 12 and is located near the inner wall surface of the main body leg 12 is lowered. Alternatively, it is provided with a third spring 33 that biases upward substantially evenly, and when the operation pin 27 is immersed in the main body leg 12, the upper portion of the operation pin 27 comes off from the pin locking hole 26a, and the lever member 26 is second. It is characterized in that it is configured so that it rotates upward by the elastic force of the spring 32 and swings of the main body leg 12 with respect to the front axle 24 are allowed.

本発明の第2の観点は、第1の観点に基づく発明であって、更に図1〜図6、図11、図13及び図14に示すように、下端に横方向に並んで一対の後輪23,23が設けられ上端が本体脚12の上部にアッパピン13を介して取付けられた補助脚14と、アッパピン13を中心に補助脚14を本体脚12に折畳み可能に本体脚12の下部と補助脚14の下部とを連結する一対の連結ステー16,16とを更に備えたことを特徴とする。 The second aspect of the present invention is an invention based on the first aspect, and further, as shown in FIGS. 1 to 6, 11, 13 and 14, a pair of rear portions arranged laterally at the lower end. Auxiliary legs 14 provided with rings 23 and 23 and having upper ends attached to the upper part of the main body legs 12 via upper pins 13, and the lower part of the main body legs 12 so that the auxiliary legs 14 can be folded into the main body legs 12 around the upper pins 13. A pair of connecting stays 16 and 16 for connecting the lower portion of the auxiliary leg 14 are further provided.

本発明の第3の観点は、第1又は第2の観点に基づく発明であって、更に図1〜図6に示すように、レバー部材26が、第2ピン22の両端に本体脚12の外周面を挟むように上下方向に回動可能に取付けられ上方に回転してフロント車軸24から離れる揺動許容位置に達し下方に回転してフロント車軸24に係合する揺動阻止位置に達する略コ字状のレバー本体26bと、このレバー本体26bの中央下部から本体脚12から離れる方向に突設されレバー本体26bを下方に回転させるために押下げられるとともにピン係止孔26aが形成された操作片26cとを有し、操作片26cをレバー本体26bとともに下方に回転させたときに操作片26cの下面が当接する操作片当接面12gが形成された操作片受け部12fが本体脚12に設けられ、操作ピン27が操作片受け部12fに収容され上部が操作片当接面12gから上方に突出可能に構成され、第1ばね31が操作片受け部12fに内蔵され操作ピン27をその上部が操作片当接面12gから突出するように付勢するように構成されたことを特徴とする。
A third aspect of the present invention is an invention based on the first or second aspect, as further illustrated in FIGS. 1-6, the lever member 26, the body legs 12 at opposite ends of the second pin 22 It is rotatably attached in the vertical direction so as to sandwich the outer peripheral surface of the above, and rotates upward to reach a swing allowable position away from the front axle 24, and rotates downward to reach a swing prevention position engaged with the front axle 24. A substantially U-shaped lever body 26b and a pin locking hole 26a are formed while projecting from the lower center of the lever body 26b in a direction away from the body leg 12 and being pushed down to rotate the lever body 26b downward. The operation piece receiving portion 12f having the operation piece 26c and the operation piece contact surface 12g with which the lower surface of the operation piece 26c comes into contact when the operation piece 26c is rotated downward together with the lever body 26b is the main body leg. The operation pin 27 is provided in the operation piece receiving portion 12f, and the operation pin 27 is housed in the operation piece receiving portion 12f so that the upper portion can protrude upward from the operation piece contact surface 12g. The first spring 31 is built in the operation piece receiving portion 12f and the operation pin 27 is provided. Is characterized in that the upper portion thereof is urged so as to protrude from the operation piece contact surface 12 g.

本発明の第4の観点は、第1ないし第3の観点のいずれかに基づく発明であって、更に図1〜図6に示すように、レバー部材26を下方に回転させてこのレバー部材26を操作ピン27の頂面に当接させたときのレバー部材26の第1押下げ力が1N〜2Nの範囲内に設定され、操作ピン27の上部にピン係止孔26aの孔縁が係止した状態で、操作ピン27を第1ばね31の弾性力に抗して本体脚12に没入させたときの操作ピン27の第2押下げ力が1N〜2Nの範囲内に設定されたことを特徴とする。 The fourth aspect of the present invention is an invention based on any one of the first to third aspects, and as shown in FIGS. 1 to 6, the lever member 26 is further rotated downward to form the lever member 26. The first pushing force of the lever member 26 when the lever member 26 is brought into contact with the top surface of the operation pin 27 is set within the range of 1N to 2N, and the hole edge of the pin locking hole 26a is engaged in the upper part of the operation pin 27. The second pushing force of the operating pin 27 when the operating pin 27 is immersed in the main body leg 12 against the elastic force of the first spring 31 in the stopped state is set within the range of 1N to 2N. It is characterized by.

本発明の第1の観点の車輪付き杖では、レバー部材を下方に回転させてこのレバー部材が操作ピンの頂面に当接した状態で、レバー部材を第1及び第2ばねの弾性力に抗して下方に回転させ操作ピンを本体脚に没入させたとき、操作ピンが第1ばねの弾性力により上昇してピン係止孔に挿通され、操作ピンにピン係止孔の孔縁が係止する。この結果、レバー本体が揺動阻止位置に維持されて、本体脚のフロント車軸に対する揺動が阻止される。一方、操作ピンにピン係止孔の孔縁が係止して本体脚のフロント車軸に対する揺動が阻止された状態で、操作ピンを第1弾性体の弾性力に抗して本体脚に没入させ、操作ピンをピン係止孔から離脱させることにより、レバー部材が第2ばねの弾性力により上方に回転する。この結果、レバー部材が揺動許容位置に達して、本体脚のフロント車軸に対する揺動が許容される。このように、レバー部材を操作して操作ピンにピン係止孔を係止させるか又は操作ピンを本体脚に没入させてピン係止孔から離脱させるだけで、本体脚のフロント車軸に対する揺動を阻止又は許容できる。また、第3ばねが本体脚内に位置するフロント車軸のうち少なくとも本体脚の内壁面近傍に位置する部分を下方又は上方に略均等に付勢するので、車輪が一対の前輪のみからなる杖の場合、本体脚のフロント車軸に対する揺動を許容した状態で、本体脚が第3ばねの弾性力により略垂直に保たれる。この結果、本体脚の左右への揺動をある程度抑制できる。また、車輪が一対の前輪及び一対の後輪からなる杖の場合、本体脚のフロント車軸に対する揺動を許容した状態で、把持部から手を離しても、本体脚が第3ばねの弾性力により略垂直に保たれる。この結果、本体脚のフロント車軸に対する揺動を阻止したときより安定感はないけれども、杖を自立した状態に保つことができる。更に、本体脚のフロント車軸に対する揺動を許容した状態で、車輪付き杖を持ち上げたときに、フロント車軸が前輪とともに左右に揺動するのを第3ばねの弾性力により阻止できる。 In the wheeled cane according to the first aspect of the present invention, the lever member is rotated downward and the lever member is applied to the elastic force of the first and second springs in a state where the lever member is in contact with the top surface of the operation pin. When the operation pin is rotated downward and immersed in the main body leg, the operation pin rises due to the elastic force of the first spring and is inserted into the pin locking hole, and the hole edge of the pin locking hole is formed on the operation pin. Lock. As a result, the lever body is maintained in the swing blocking position, and swinging of the body legs with respect to the front axle is prevented. On the other hand, in a state where the edge of the pin locking hole is locked to the operation pin to prevent the main body leg from swinging with respect to the front axle, the operation pin is immersed in the main body leg against the elastic force of the first elastic body. The lever member is rotated upward by the elastic force of the second spring by disengaging the operation pin from the pin locking hole. As a result, the lever member reaches the swing allowable position, and the swing of the main body leg with respect to the front axle is allowed. In this way, simply by operating the lever member to lock the pin locking hole in the operation pin, or by immersing the operation pin in the main body leg and disengaging it from the pin locking hole, the main body leg swings with respect to the front axle. Can be blocked or tolerated. Further, since the third spring urges at least the portion of the front axle located in the main body leg near the inner wall surface of the main body leg substantially evenly downward or upward, the cane consisting of only a pair of front wheels has wheels. In this case, the main body leg is kept substantially vertical by the elastic force of the third spring while allowing the main body leg to swing with respect to the front axle. As a result, the swing of the main body leg to the left and right can be suppressed to some extent. Further, in the case of a cane consisting of a pair of front wheels and a pair of rear wheels, the main body leg has the elastic force of the third spring even if the hand is released from the grip portion while allowing the main body leg to swing with respect to the front axle. Keeps it almost vertical. As a result, the cane can be kept in an independent state, although it is less stable than when the main body leg is prevented from swinging with respect to the front axle. Further, when the cane with wheels is lifted while allowing the main body leg to swing with respect to the front axle, the elastic force of the third spring can prevent the front axle from swinging left and right together with the front wheels.

本発明の第2の観点の車輪付き杖では、上端が本体脚の上部にアッパピンを介して取付けられた補助脚の下端に横方向に並んで一対の後輪を設け、一対の連結ステーがアッパピンを中心に補助脚を本体脚に折畳み可能に本体脚の下部と補助脚の下部とを連結することにより、一対の前輪及び一対の後輪の合計4つの車輪を有するので、車輪が一対の前輪のみからなる杖と比較して、杖自体の安定感が向上する。上記以外の効果は、第1の観点の杖と同様に、レバー部材を操作して操作ピンにピン係止孔を係止させるか又は操作ピンを本体脚に没入させてピン係止孔から離脱させるだけで、本体脚のフロント車軸に対する揺動を阻止又は許容できる。 In the cane with wheels according to the second aspect of the present invention, a pair of rear wheels are provided laterally arranged at the lower end of the auxiliary leg whose upper end is attached to the upper part of the main body leg via the upper pin, and the pair of connecting stays are the upper pin. By connecting the lower part of the main body leg and the lower part of the auxiliary leg so that the auxiliary leg can be folded around the main body leg, a pair of front wheels and a pair of rear wheels have a total of four wheels, so that the wheels are a pair of front wheels. Compared to a cane consisting of only a cane, the stability of the cane itself is improved. Similar to the cane of the first aspect, the effect other than the above is that the lever member is operated to lock the pin locking hole in the operation pin, or the operation pin is immersed in the main body leg to separate from the pin locking hole. It is possible to prevent or tolerate the swing of the main body leg with respect to the front axle simply by making it.

本発明の第3の観点の車輪付き杖では、操作片を押下げてレバー部材を下方に回転させ、操作片の下面が操作ピンの頂面に当接した状態で、操作片を第1及び第2ばねの弾性力に抗して更に押下げ、操作ピンを操作片受け部に没入させると、操作片の下面が操作片当接面に接近するか又は当接したとき、操作ピンの軸心がピン係止孔の孔心に略一致し、操作ピンが第1ばねの弾性力により上昇してピン係止孔に挿通される。そして、操作片の押下げを解除してレバー本体が操作片とともに第2ばねの弾性力により僅かに上方に回転すると、操作ピンの外周面にピン係止孔の孔縁が係止する。この結果、レバー本体が揺動阻止位置に維持されて、本体脚のフロント車軸に対する揺動が阻止される。一方、操作ピンにピン係止孔の孔縁が係止して本体脚のフロント車軸に対する揺動が阻止された状態で、操作ピンを第1ばねの弾性力に抗して操作片受け部に没入させ、操作ピンをピン係止孔から離脱させる。この状態で、操作片の押下げを解除すると、レバー本体が操作片とともに第2ばねの弾性力により上方に回転する。この結果、レバー本体が揺動許容位置に達して、本体脚のフロント車軸に対する揺動が許容される。このように簡単な操作で、本体脚のフロント車軸に対する揺動を阻止又は許容できる。 In the wheeled cane according to the third aspect of the present invention, the operating piece is pushed down to rotate the lever member downward, and the operating piece is placed in contact with the top surface of the operating pin in a state where the lower surface of the operating piece is in contact with the first and lower operating pieces. When the operation pin is further pushed down against the elastic force of the second spring and the operation pin is immersed in the operation piece receiving portion, when the lower surface of the operation piece approaches or comes into contact with the operation piece contact surface, the shaft of the operation pin The center substantially coincides with the hole center of the pin locking hole, and the operating pin is raised by the elastic force of the first spring and inserted into the pin locking hole. Then, when the push-down of the operation piece is released and the lever body rotates slightly upward together with the operation piece by the elastic force of the second spring, the edge of the pin locking hole is locked on the outer peripheral surface of the operation pin. As a result, the lever body is maintained in the swing blocking position, and swinging of the body legs with respect to the front axle is prevented. On the other hand, in a state where the edge of the pin locking hole is locked to the operation pin to prevent the main body leg from swinging with respect to the front axle, the operation pin is placed on the operation piece receiving portion against the elastic force of the first spring. Immerse and disengage the operating pin from the pin locking hole. When the pressing of the operating piece is released in this state, the lever body rotates upward together with the operating piece by the elastic force of the second spring. As a result, the lever main body reaches the swing allowable position, and the swing of the main body leg with respect to the front axle is allowed. With such a simple operation, the swing of the main body leg with respect to the front axle can be prevented or allowed.

本発明の第4の観点の車輪付き杖では、レバー部材を下方に回転させてこのレバー部材を操作ピンの頂面に当接させたときのレバー部材の第1押下げ力を1N〜2Nの範囲内に設定し、操作ピンの上部にピン係止孔の孔縁が係止した状態で、操作ピンを第1ばねの弾性力に抗して本体脚に没入させたときの操作ピンの第2押下げ力を1N〜2Nの範囲内に設定したので、揺動止具を下方に回転させて杖本体に嵌め込むときに大きな力を必要とする従来の車輪のついた杖より、小さい力で操作ピンにピン係止孔の孔縁を係止させることができる。また、操作ピンの上部にピン係止孔の孔縁が係止した状態で、操作ピンを第1ばねの弾性力に抗して本体脚に没入させたときの操作ピンの第2押下げ力を1N〜2Nの範囲内に設定したので、揺動止具を上方に回転させて杖本体への嵌め込みを外すときに大きな力を必要とする従来の車輪のついた杖より、小さい力で操作ピンをピン係止孔から離脱させることができる。 In the cane with wheels according to the fourth aspect of the present invention, the first pushing force of the lever member when the lever member is rotated downward to bring the lever member into contact with the top surface of the operation pin is 1N to 2N. When the operation pin is set within the range and the edge of the pin locking hole is locked on the upper part of the operation pin, the operation pin is immersed in the main body leg against the elastic force of the first spring. 2 Since the pushing force is set within the range of 1N to 2N, the force is smaller than that of the conventional cane with wheels, which requires a large force when the rocking stopper is rotated downward and fitted into the cane body. Can lock the edge of the pin locking hole to the operation pin. Further, with the edge of the pin locking hole locked on the upper part of the operation pin, the second pressing force of the operation pin when the operation pin is immersed in the main body leg against the elastic force of the first spring. Is set within the range of 1N to 2N, so it can be operated with less force than the conventional cane with wheels, which requires a large force when the rocking stopper is rotated upward to remove the fitting into the cane body. The pin can be detached from the pin locking hole.

本発明第1及び第2実施形態の車輪付き杖の本体脚の下部とフロント車軸の中央部を含みレバー部材が揺動許容位置に達して本体脚のフロント車軸に対する揺動が許容された状態を示す要部斜視図である。A state in which the lever member reaches the swing allowable position including the lower portion of the main body leg and the central portion of the front axle of the cane with wheels according to the first and second embodiments of the present invention, and the swing of the main body leg with respect to the front axle is permitted. It is the main part perspective view which shows. レバー部材が揺動阻止位置に達して本体脚のフロント車軸に対する揺動が阻止された状態を示す図1に対する要部斜視図である。FIG. 5 is a perspective view of a main part with respect to FIG. 1, showing a state in which the lever member reaches the swing blocking position and the swing of the main body leg with respect to the front axle is blocked. 図1のA−A線断面図である。FIG. 1 is a cross-sectional view taken along the line AA of FIG. レバー部材の操作片が操作ピンを第1ばねの弾性力に抗して押下げている状態を示す図3に対応する断面図である。It is sectional drawing corresponding to FIG. 3 which shows the state which the operation piece of the lever member pushes down the operation pin against the elastic force of the 1st spring. 図2のB−B線断面図である。FIG. 2 is a cross-sectional view taken along the line BB of FIG. 操作ピンを本体脚の操作片受け部内に没入させて操作ピンの上部がピン係止孔から外れた状態を示す図5に対応する断面図である。FIG. 5 is a cross-sectional view corresponding to FIG. 5, showing a state in which the operation pin is immersed in the operation piece receiving portion of the main body leg and the upper portion of the operation pin is disengaged from the pin locking hole. 図2のC矢視図である。It is the C arrow view of FIG. 図5のD−D線断面図である。FIG. 5 is a cross-sectional view taken along the line DD of FIG. 図3のE−E線断面図である。FIG. 3 is a cross-sectional view taken along the line EE of FIG. 図5のF−F線断面図である。FIG. 5 is a cross-sectional view taken along the line FF of FIG. その本体脚の下部に取付けられたレバー部材等の分解斜視図である。It is an exploded perspective view of the lever member and the like attached to the lower part of the main body leg. 本発明第1実施形態の車輪付き杖の正面図である。It is a front view of the cane with a wheel of 1st Embodiment of this invention. その車輪付き杖の使用状態を示す側面図である。It is a side view which shows the use state of the cane with a wheel. その車輪付き杖の折畳んだ状態を示す側面図である。It is a side view which shows the folded state of the cane with a wheel. その車輪付き杖の折畳んだ状態を示す斜視図である。It is a perspective view which shows the folded state of the cane with a wheel. 本発明第2実施形態の車輪付き杖の正面図である。It is a front view of the cane with a wheel of the 2nd Embodiment of this invention.

次に本発明を実施するための形態を図面に基づいて説明する。 Next, a mode for carrying out the present invention will be described with reference to the drawings.

<第1の実施の形態>
図12〜図15に示すように、車輪付き杖10は、上端に把持部11が設けられたパイプ状の本体脚12と、上端が本体脚12の上部にアッパピン13を介して取付けられた補助脚14と、本体脚12の下部と補助脚14の下部とを連結する一対の連結ステー16,16とを備える。本体脚12は、この実施の形態では、略一直線状に延びて設けられた円筒状のアウタパイプ12aと、下部がアウタパイプ12aの上端に引抜き可能に挿入された円筒状のインナパイプ12bとを有する。インナパイプ12bは略逆L字状に曲げて形成され、その下部がアウタパイプ12aの上端に挿入された状態でその上部が後方に延びて設けられ、この上部にゴム製又はプラスチック製の上記把持部11が嵌着される。上記アウタパイプ12a及びインナパイプ12bは、アルミニウム合金製、マグネシウム合金製、カーボン製、炭素鋼製等の丸パイプによりそれぞれ形成される。また、図12〜図15中の符号17は、アウタパイプ12a及びインナパイプ12bの全長を所望の長さに調節した後に、インナパイプ12bのアウタパイプ12aに対する伸縮及びがたつきを阻止するロックナットである。
<First Embodiment>
As shown in FIGS. 12 to 15, the wheeled cane 10 has a pipe-shaped main body leg 12 having a grip portion 11 at the upper end and an auxiliary whose upper end is attached to the upper portion of the main body leg 12 via an upper pin 13. The legs 14 and a pair of connecting stays 16 and 16 for connecting the lower portion of the main body leg 12 and the lower portion of the auxiliary leg 14 are provided. In this embodiment, the main body leg 12 has a cylindrical outer pipe 12a provided so as to extend substantially in a straight line, and a cylindrical inner pipe 12b whose lower portion is retractably inserted into the upper end of the outer pipe 12a. The inner pipe 12b is formed by bending in a substantially inverted L shape, and the upper portion thereof is provided so as to extend rearward with the lower portion inserted into the upper end of the outer pipe 12a, and the grip portion made of rubber or plastic is provided on the upper portion thereof. 11 is fitted. The outer pipe 12a and the inner pipe 12b are formed of round pipes made of aluminum alloy, magnesium alloy, carbon, carbon steel or the like, respectively. Reference numeral 17 in FIGS. 12 to 15 is a lock nut that prevents the inner pipe 12b from expanding and contracting and rattling with respect to the outer pipe 12a after adjusting the total length of the outer pipe 12a and the inner pipe 12b to a desired length. ..

一対の連結ステー16,16のうち一方の連結ステー16の一端は、本体脚12の下部に回動可能に取付けられ、他方の連結ステー16の一端は、補助脚14の下部に回動可能に取付けられる(図13〜図15)。そして、一方の連結ステー16の他端と他方の連結ステー16の他端とは連結ピン18により回動可能に互いに連結される。一対の連結ステー16,16を一直線状に伸長することにより、補助脚14が本体脚12に対してアッパピン13を中心に回転しこれらの脚12,14のなす角度が最大になって、杖10が使用状態になる(図13)。また、一対の連結ステー16,16を2つに折畳むことにより、補助脚14が本体脚12に対してアッパピン13を中心に回転しこれらの脚12,14のなす角度が最小になって、補助脚14が本体脚12に折畳まれ、杖10が折畳み状態になる(図14及び図15)。更に、本体脚12の下端には、横方向に並んで一対の前輪19,19が回転可能に設けられ、補助脚14の下端には、横方向に並んで一対の後輪23,23が回転可能に設けられる(図12〜図15)。 One end of one of the pair of connecting stays 16 and 16 is rotatably attached to the lower part of the main body leg 12, and one end of the other connecting stay 16 is rotatably attached to the lower part of the auxiliary leg 14. It can be attached (FIGS. 13 to 15). Then, the other end of one connecting stay 16 and the other end of the other connecting stay 16 are rotatably connected to each other by the connecting pin 18. By extending the pair of connecting stays 16 and 16 in a straight line, the auxiliary leg 14 rotates about the upper pin 13 with respect to the main body leg 12, and the angle formed by these legs 12 and 14 is maximized. Is in use (Fig. 13). Further, by folding the pair of connecting stays 16 and 16 in two, the auxiliary leg 14 rotates about the upper pin 13 with respect to the main body leg 12, and the angle formed by these legs 12 and 14 is minimized. The auxiliary leg 14 is folded into the main body leg 12, and the cane 10 is in the folded state (FIGS. 14 and 15). Further, a pair of front wheels 19 and 19 are rotatably provided at the lower end of the main body leg 12 side by side, and a pair of rear wheels 23 and 23 are rotated side by side at the lower end of the auxiliary leg 14. It can be provided (FIGS. 12 to 15).

車輪付き杖10は、本体脚12の下端近傍に本体脚12の長手方向に延びかつ横方向に互いに対向して形成された一対の車軸用長孔12c,12cと、一対の車軸用長孔12c,12cに遊挿されたフロント車軸24と、本体脚12及びフロント車軸24にこれらの直交する方向から挿通された第1ピン21と、車軸用長孔12cより上方の本体脚12の外周面を挟むように本体脚12に取付けられた略コ字状のレバー部材26と、本体脚12に出没可能に取付けられ第1ばね31の弾性力により上方に突出する方向に付勢される操作ピン27と、レバー部材26に形成されたピン係止孔26aと、レバー部材26を上方に回転するように付勢する第2ばね32とを更に備える(図1、図3及び図8)。本体脚12は、この実施の形態では、アウタパイプ12aの下端に上端が嵌入され下端が後方に屈曲する靴状部12dを更に有する(図1及び図3)。この靴状部12dは、アウタパイプ12aの下端に嵌入され内部に鉛直方向に延びる大径の孔が形成された嵌入筒部12eと、この嵌入筒部12eと一体的に形成され嵌入筒部12eの下部から後方に延びる操作片受け部12fとからなる。 The wheeled cane 10 has a pair of long axle holes 12c and 12c formed in the vicinity of the lower end of the main body leg 12 in the longitudinal direction of the main body leg 12 and opposed to each other in the lateral direction, and a pair of long axle holes 12c. , The front axle 24 loosely inserted into 12c, the first pin 21 inserted into the main body leg 12 and the front axle 24 from these orthogonal directions, and the outer peripheral surface of the main body leg 12 above the long axle hole 12c. A substantially U-shaped lever member 26 attached to the main body leg 12 so as to sandwich the operation pin 27 and an operation pin 27 attached to the main body leg 12 so as to be retractable and urged in a direction of protruding upward by the elastic force of the first spring 31. A pin locking hole 26a formed in the lever member 26 and a second spring 32 for urging the lever member 26 so as to rotate upward are further provided (FIGS. 1, 3 and 8). In this embodiment, the main body leg 12 further has a shoe-shaped portion 12d in which the upper end is fitted into the lower end of the outer pipe 12a and the lower end is bent rearward (FIGS. 1 and 3). The shoe-shaped portion 12d includes an fitting cylinder portion 12e that is fitted into the lower end of the outer pipe 12a and has a large-diameter hole extending in the vertical direction inside, and a fitting cylinder portion 12e that is integrally formed with the fitting cylinder portion 12e. It is composed of an operation piece receiving portion 12f extending rearward from the lower part.

上記一対の車軸用長孔12c,12cは、上記靴状部12dの嵌入筒部12eに本体脚12の長手方向に延びかつ横方向に互いに対向してそれぞれ形成される(図8及び図9)。また、これらの車軸用長孔12c,12cに遊挿されたフロント車軸24の両端に一対の前輪19,19が回転可能に取付けられる(図12〜図15)。即ち、フロント車軸24が一対の前輪19,19を回転可能に支持するように構成される。また、第1ピン21は、靴状部12dの嵌入筒部12eに前後方向に延びて挿通されるとともに、嵌入筒部12e内であって一対の車軸用長孔12c,12cの長手方向中央でフロント車軸24に挿通される(図3、図8及び図9)。これにより第1ピン21は本体脚12をフロント車軸24に対して横方向に揺動可能に保持するようになっている。なお、第1ピン21の基端には大径の頭部21aが形成され、先端は抜止めのためにかしめられる(図3〜図6)。また、一対の後輪23,23は、補助脚14の下部に横方向に延びて挿通されたリヤ車軸28の両端に回転可能に取付けられる(図13〜図15)。 The pair of long axle holes 12c and 12c are formed in the fitting cylinder portion 12e of the shoe-shaped portion 12d so as to extend in the longitudinal direction of the main body leg 12 and face each other in the lateral direction (FIGS. 8 and 9). .. Further, a pair of front wheels 19 and 19 are rotatably attached to both ends of the front axle 24 loosely inserted into the long axle holes 12c and 12c (FIGS. 12 to 15). That is, the front axle 24 is configured to rotatably support the pair of front wheels 19, 19. Further, the first pin 21 extends in the front-rear direction and is inserted into the fitting cylinder portion 12e of the shoe-shaped portion 12d, and is inside the fitting cylinder portion 12e at the center of the pair of long axle holes 12c and 12c in the longitudinal direction. It is inserted through the front axle 24 (FIGS. 3, 8 and 9). As a result, the first pin 21 holds the main body leg 12 so as to be swingable in the lateral direction with respect to the front axle 24. A large-diameter head 21a is formed at the base end of the first pin 21, and the tip is crimped for retaining (FIGS. 3 to 6). Further, the pair of rear wheels 23, 23 are rotatably attached to both ends of the rear axle 28, which extends laterally and is inserted into the lower portion of the auxiliary legs 14 (FIGS. 13 to 15).

レバー部材26は、車軸用長孔12cより上方の本体脚12にフロント車軸24と平行に挿通された第2ピン22の両端に本体脚12の外周面を挟むように上下方向に回動可能に取付けられた略コ字状のレバー本体26bと、このレバー本体26bの中央下部から本体脚12から離れる方向に突設された操作片26cとを有する(図1〜図6及び図11)。上記レバー本体26bは、一端が第2ピン22に回動可能に取付けられた略L字状の一対の腕部26d,26dと、これらの腕部26d,26dの他端を連結する連結部26eとからなる。また、一対の腕部26d,26dのコーナ部には、フロント車軸24の半径と略同一の曲率半径を有する段差部26fがそれぞれ形成される(図1、図2及び図7)。第2ピン22は、靴状部12dの嵌入筒部12eの上部に横方向に延びて挿通されるとともに、嵌入筒部12e内でアウタパイプ12aの下部に挿通される(図8及び図9)。これにより靴状部12dがアウタパイプ12aから離脱しないようになっている。なお、図1、図2及び図8〜図10中の符号22aは、第2ピン22の頭部であり、図1、図2及び図8〜図10中の符号22bは、第2ピン22の先端部に嵌着されたC型止め輪である。 The lever member 26 can be rotated in the vertical direction so as to sandwich the outer peripheral surface of the main body leg 12 between both ends of the second pin 22 inserted in parallel with the front axle 24 into the main body leg 12 above the long hole 12c for the axle. It has a substantially U-shaped lever body 26b attached and an operation piece 26c projecting from the lower center of the lever body 26b in a direction away from the body legs 12 (FIGS. 1 to 6 and 11). The lever body 26b has a pair of substantially L-shaped arms 26d and 26d whose one end is rotatably attached to the second pin 22 and a connecting portion 26e that connects the other ends of these arms 26d and 26d. It consists of. Further, stepped portions 26f having a radius of curvature substantially the same as the radius of the front axle 24 are formed at the corner portions of the pair of arm portions 26d and 26d (FIGS. 1, 2 and 7). The second pin 22 extends laterally and is inserted into the upper portion of the fitting cylinder portion 12e of the shoe-shaped portion 12d, and is inserted into the lower portion of the outer pipe 12a in the fitting cylinder portion 12e (FIGS. 8 and 9). As a result, the shoe-shaped portion 12d is prevented from being separated from the outer pipe 12a. Reference numeral 22a in FIGS. 1, 2 and 8 to 10 is the head of the second pin 22, and reference numeral 22b in FIGS. 1, 2 and 8 to 10 is the second pin 22. It is a C-shaped retaining ring fitted to the tip of the.

また、第2ばね32は、この実施の形態では、捩りコイルばねであり、第2ピン22の両端部にそれぞれ嵌入される(図1、図2及び図8〜図11)。第2ばね32は、その一端がレバー本体26bの腕部26dに係止され、その他端が靴状部12dの嵌入筒部12eに係止される(図1、図2及び図7)。そして、レバー本体26bは、第2ばね32の弾性力により第2ピン22を中心に上方に回転してフロント車軸24から離れる揺動許容位置に達し(図1及び図3)、本体脚12がフロント車軸24に対して第1ピン21を中心に横方向に揺動可能に構成される。また、レバー本体26bは、第2ばね32の弾性力に抗して押下げることにより第2ピン22を中心に下方に回転して段差部26fがフロント車軸24に係合する揺動阻止位置に達し(図2及び図5)、本体脚12がフロント車軸24に対して第1ピン21を中心に横方向に揺動するのを阻止するように構成される。更に、操作片26cは、レバー本体26bを下方に回転させるために押下げられるとともに、その略中央にピン係止孔26aが形成される(図1〜図6)。このピン係止孔26aには操作ピン27の上部が挿入可能であって、操作ピン27の上部をピン係止孔26aを挿入したときに操作ピン27の上部にピン係止孔26aの孔縁が係止するように構成される(図5)。 Further, the second spring 32 is a torsion coil spring in this embodiment, and is fitted into both ends of the second pin 22 (FIGS. 1, 2 and 8 to 11). One end of the second spring 32 is locked to the arm portion 26d of the lever body 26b, and the other end is locked to the fitting cylinder portion 12e of the shoe-shaped portion 12d (FIGS. 1, 2 and 7). Then, the lever body 26b rotates upward around the second pin 22 due to the elastic force of the second spring 32 and reaches a swing permissible position away from the front axle 24 (FIGS. 1 and 3), and the body legs 12 It is configured to swing laterally around the first pin 21 with respect to the front axle 24. Further, the lever body 26b rotates downward about the second pin 22 by pushing down against the elastic force of the second spring 32, and the step portion 26f is positioned at a swing blocking position where the step portion 26f engages with the front axle 24. It is configured to prevent the body leg 12 from swinging laterally about the first pin 21 with respect to the front axle 24 when it reaches (FIGS. 2 and 5). Further, the operation piece 26c is pushed down to rotate the lever body 26b downward, and a pin locking hole 26a is formed substantially in the center thereof (FIGS. 1 to 6). The upper part of the operation pin 27 can be inserted into the pin locking hole 26a, and when the pin locking hole 26a is inserted into the upper part of the operation pin 27, the hole edge of the pin locking hole 26a is inserted in the upper part of the operation pin 27. Is configured to lock (Fig. 5).

一方、靴状部12dの操作片受け部12fには、操作片26cをレバー本体26bとともに下方に回転させたときに操作片26cの下面が当接する操作片当接面12gと、操作片当接面12gから操作片受け部12f内に下方に延びる挿入穴12hとが形成される(図3〜図6及び図10)。また、操作ピン27は、操作片受け部12fに収容され上部が操作片当接面12gから上方に突出可能に構成され、第1ばね31は、操作片受け部12fに内蔵され操作ピン27をその上部が操作片当接面12gから突出するように付勢するように構成される。この実施の形態では、操作片受け部12fに、挿入穴12hに連通し挿入穴12hの長手方向に延びかつ横方向に互いに対向する一対の操作ピン用長孔12i,12iがそれぞれ形成される(図10)。また、一対の操作ピン用長孔12i,12iには抜止めピン34が遊挿され、この抜止めピン34は挿入穴12h内で操作ピン27の下部に挿通される。更に、挿入穴12hに圧縮コイルばねからなる第1ばね31が収容され、この第1ばね31の弾性力により操作ピン27が挿入穴12hから上方に突出する方向に付勢される(図3〜図6及び図10)。そして、抜止めピン34が一対の操作ピン用長孔12i,12iの上端に達することにより、操作ピン27の上部の挿入穴12hからの突出が規制される。なお、図10中の符号36,36は、抜止めピン34の両端部に嵌入された一対のカラーである。また、図10中の符号34aは、抜止めピン34の頭部であり、図10中の符号34bは、抜止めピン34の先端部に嵌着されたC型止め輪である。 On the other hand, the operation piece receiving portion 12f of the shoe-shaped portion 12d is in contact with the operation piece contact surface 12g with which the lower surface of the operation piece 26c comes into contact when the operation piece 26c is rotated downward together with the lever body 26b. An insertion hole 12h extending downward from the surface 12g is formed in the operation piece receiving portion 12f (FIGS. 3 to 6 and 10). Further, the operation pin 27 is housed in the operation piece receiving portion 12f so that the upper portion can protrude upward from the operation piece contact surface 12g, and the first spring 31 is built in the operation piece receiving portion 12f to provide the operation pin 27. The upper part is configured to be urged so as to protrude from the operation piece contact surface 12g. In this embodiment, a pair of long holes 12i and 12i for operation pins are formed in the operation piece receiving portion 12f so as to communicate with the insertion hole 12h and extend in the longitudinal direction of the insertion hole 12h and face each other in the lateral direction. FIG. 10). Further, a retaining pin 34 is loosely inserted into the pair of long holes 12i and 12i for operating pins, and the retaining pin 34 is inserted into the lower part of the operating pin 27 in the insertion hole 12h. Further, a first spring 31 made of a compression coil spring is housed in the insertion hole 12h, and the elastic force of the first spring 31 urges the operation pin 27 in a direction in which the operation pin 27 protrudes upward from the insertion hole 12h (FIGS. 3 to 3). 6 and 10). Then, when the retaining pin 34 reaches the upper ends of the pair of long holes 12i and 12i for the operation pin, the protrusion of the operation pin 27 from the insertion hole 12h above the operation pin 27 is restricted. Reference numerals 36 and 36 in FIG. 10 are a pair of collars fitted at both ends of the retaining pin 34. Reference numeral 34a in FIG. 10 is the head of the retaining pin 34, and reference numeral 34b in FIG. 10 is a C-shaped retaining ring fitted to the tip of the retaining pin 34.

レバー部材26の操作片26cを下方に回転させてこの操作片26cが操作ピン27の頂面に当接した状態で、操作片26cを第1及び第2ばね31,32の弾性力に抗して下方に回転させ操作ピン27を本体脚12の靴状部12dの操作片受け部12fの挿入穴12hに没入させたとき、操作ピン27が第1ばね31の弾性力により上昇してピン係止孔26aに挿通され、操作ピン27の上部にピン係止孔26aの孔縁が係止するように構成される(図2、図5、図7及び図10)。また、操作片26cを第2ばね32の弾性力に抗して下方に回転させこのレバー部材26を操作ピン27の頂面に当接させたときのレバー部材26の操作片26cの第1押下げ力が1N〜2Nの範囲内に設定される。ここで、上記第1押下げ力を1N〜2Nの範囲内に限定したのは、1N未満ではレバー部材26が振動等により上下に揺動してしまい、2Nを超えると操作片26cの操作力が大きくなって操作性が低下するからである。 With the operation piece 26c of the lever member 26 rotated downward and the operation piece 26c in contact with the top surface of the operation pin 27, the operation piece 26c resists the elastic force of the first and second springs 31, 32. When the operation pin 27 is immersed in the insertion hole 12h of the operation piece receiving portion 12f of the shoe-shaped portion 12d of the main body leg 12 by rotating downward, the operation pin 27 rises due to the elastic force of the first spring 31 and is pinned. It is inserted through the stop hole 26a and configured so that the hole edge of the pin locking hole 26a is locked to the upper part of the operation pin 27 (FIGS. 2, FIG. 5, FIG. 7 and FIG. 10). Further, the first push of the operation piece 26c of the lever member 26 when the operation piece 26c is rotated downward against the elastic force of the second spring 32 and the lever member 26 is brought into contact with the top surface of the operation pin 27. The lowering force is set within the range of 1N to 2N. Here, the reason why the first pushing force is limited to the range of 1N to 2N is that if it is less than 1N, the lever member 26 swings up and down due to vibration or the like, and if it exceeds 2N, the operating force of the operating piece 26c. This is because the operability is lowered.

一方、操作ピン27の上部にピン係止孔26aの孔縁が係止した状態で、操作ピン27を本体脚12に没入させると(図6)、操作ピン27の上部がピン係止孔26aから外れ、レバー部材26の操作片26cが第2ばね32の弾性力により上方に回転して、本体脚12のフロント車軸24に対する揺動が許容されるように構成される(図1及び図3)。また、操作ピン27の上部にピン係止孔26aの孔縁が係止した状態で、操作ピン27を第1ばね31の弾性力に抗して本体脚12に没入させたときの操作ピン27の第2押下げ力が1N〜2Nの範囲内に設定される。ここで、上記第2押下げ力を1N〜2Nの範囲内に限定したのは、1N未満では操作ピン27が操作片受け部12fの挿入穴12hからスムーズに出没できず、2Nを超えると操作ピン27の操作力が大きくなって操作性が低下するからである。 On the other hand, when the operation pin 27 is immersed in the main body leg 12 with the hole edge of the pin locking hole 26a locked on the upper part of the operation pin 27 (FIG. 6), the upper part of the operation pin 27 is the pin locking hole 26a. The operating piece 26c of the lever member 26 is configured to rotate upward due to the elastic force of the second spring 32 so that the main body leg 12 can swing with respect to the front axle 24 (FIGS. 1 and 3). ). Further, the operation pin 27 when the operation pin 27 is immersed in the main body leg 12 against the elastic force of the first spring 31 in a state where the hole edge of the pin locking hole 26a is locked on the upper portion of the operation pin 27. The second pushing force of is set within the range of 1N to 2N. Here, the reason why the second pushing force is limited to the range of 1N to 2N is that the operation pin 27 cannot smoothly appear and disappear from the insertion hole 12h of the operation piece receiving portion 12f if it is less than 1N, and the operation is performed when it exceeds 2N. This is because the operating force of the pin 27 is increased and the operability is lowered.

本体脚12には第3ばね33が内蔵される。第3ばね33は、この実施の形態では、圧縮コイルばねである(図3〜図6、図8、図9及び図11)。この第3ばね33は、第2ピン22とフロント車軸24との間に介装される。また、第3ばね33は、本体脚12内に位置するフロント車軸24のうち本体脚12の内壁面近傍に位置する部分を下方に略均等に付勢するようになっている。なお、図12〜図15中の符号37は、荷物の取っ手(図示せず)を引っ掛けるフックである。このフック37の上端には互いに近づく方向に曲げられた一対の上片37a,37aが形成される。これらの上片37a,37aにより、フック37に取っ手を引っ掛けた荷物をフック37から容易に外せないので、荷物の盗難を抑制できるようになっている。また、図12〜図15中の符号38は、ブレーキレバーであり、図12〜図15中の符号39は、ブレーキシューである。ブレーキレバー38はブレーキシュー39にブレーキケーブル(図示せず)により連結され、このブレーキケーブルは補助脚14内に配索される。これによりブレーキケーブルの大部分が露出しないので、杖10の見栄えを損なわないようになっている。また、図12〜図15中の符号41は、傘や棒状杖等を受ける受け具であり、また、図13〜図15中の符号43は、杖10を折畳み状態に保つベルト、即ち杖10を折畳み状態にしたときに補助脚14と本体脚12とのアッパピン13を中心とする角度が大きくなるのを阻止するベルトである。更に、本体脚12の上部には、傘や棒状杖等の上部を本体脚12に固定するための面ファスナ(図示せず)が設けられる。 A third spring 33 is built in the main body leg 12. The third spring 33 is a compression coil spring in this embodiment (FIGS. 3 to 6, 8, 9, and 11). The third spring 33 is interposed between the second pin 22 and the front axle 24. Further, the third spring 33 is adapted to urge the portion of the front axle 24 located in the main body leg 12 near the inner wall surface of the main body leg 12 substantially evenly downward. Reference numeral 37 in FIGS. 12 to 15 is a hook for hooking a handle (not shown) of the luggage. A pair of upper pieces 37a, 37a bent in a direction approaching each other are formed at the upper end of the hook 37. Since the luggage whose handle is hooked on the hook 37 cannot be easily removed from the hook 37 by these upper pieces 37a and 37a, the theft of the luggage can be suppressed. Reference numerals 38 in FIGS. 12 to 15 are brake levers, and reference numeral 39 in FIGS. 12 to 15 is a brake shoe. The brake lever 38 is connected to the brake shoe 39 by a brake cable (not shown), and the brake cable is arranged in the auxiliary leg 14. As a result, most of the brake cable is not exposed, so that the appearance of the cane 10 is not spoiled. Reference numeral 41 in FIGS. 12 to 15 is a receiver for receiving an umbrella, a stick-shaped cane, or the like, and reference numeral 43 in FIGS. 13 to 15 is a belt that keeps the cane 10 in a folded state, that is, the cane 10. This is a belt that prevents the angle between the auxiliary leg 14 and the main body leg 12 from increasing about the upper pin 13 when the is folded. Further, a hook-and-loop fastener (not shown) for fixing the upper part of an umbrella, a stick-shaped cane, or the like to the main body leg 12 is provided on the upper part of the main body leg 12.

このように構成された車輪付き杖10の使用方法を説明する。先ず、レバー部材26の操作片26cを図3の状態から押下げてレバー部材26を下方に回転させると、操作片26cの下面が操作ピン27の頂面に当接する。次に、この操作片26cを第1及び第2ばね31,32の弾性力に抗して第1押下げ力で更に押下げ、操作ピン27を操作片受け部12fに没入させると(図4)、操作片26cの下面が操作片当接面12gに接近するか又は当接したとき、操作ピン27の軸心がピン係止孔26aの孔心に略一致し、操作ピン27が第1ばね31の弾性力により上昇してピン係止孔26aに挿通される(図2及び図5)。このとき、操作片26cの第1押下げ力を1N〜2Nの範囲内に設定し、操作ピン27の第2押下げ力を1N〜2Nの範囲内に設定したので、比較的小さい力で操作ピン27にピン係止孔26aの孔縁を係止させることができる。更に、操作片26cから手を離し操作片26cの押下げを解除すると、レバー本体26bが操作片26cとともに第2ばね32の弾性力により僅かに上方に回転し、操作ピン27の外周面にピン係止孔26aの孔縁が係止する。この結果、レバー本体26bが揺動阻止位置に維持されて、本体脚12のフロント車軸24に対する揺動が阻止されるので、杖10を折畳み状態で運ぶときに、杖10をふらつくことなく安定して運ぶことができる。 How to use the wheeled cane 10 configured in this way will be described. First, when the operation piece 26c of the lever member 26 is pushed down from the state shown in FIG. 3 and the lever member 26 is rotated downward, the lower surface of the operation piece 26c comes into contact with the top surface of the operation pin 27. Next, when the operation piece 26c is further pressed down by the first pressing force against the elastic force of the first and second springs 31, 32, and the operation pin 27 is immersed in the operation piece receiving portion 12f (FIG. 4). ), When the lower surface of the operation piece 26c approaches or comes into contact with the operation piece contact surface 12g, the axis of the operation pin 27 substantially coincides with the hole center of the pin locking hole 26a, and the operation pin 27 becomes the first. It rises due to the elastic force of the spring 31 and is inserted into the pin locking hole 26a (FIGS. 2 and 5). At this time, since the first pressing force of the operation piece 26c was set within the range of 1N to 2N and the second pressing force of the operation pin 27 was set within the range of 1N to 2N, the operation was performed with a relatively small force. The hole edge of the pin locking hole 26a can be locked to the pin 27. Further, when the hand is released from the operation piece 26c and the push-down of the operation piece 26c is released, the lever body 26b rotates slightly upward together with the operation piece 26c due to the elastic force of the second spring 32, and is pinned to the outer peripheral surface of the operation pin 27. The hole edge of the locking hole 26a is locked. As a result, the lever body 26b is maintained in the swing blocking position, and the swing of the main body leg 12 with respect to the front axle 24 is prevented. Therefore, when the cane 10 is carried in the folded state, the cane 10 is stable without wobbling. Can be carried.

一方、操作ピン27にピン係止孔26aの孔縁が係止して本体脚12のフロント車軸24に対する揺動が阻止された状態で(図2及び図5)、操作ピン27を第1ばね31の弾性力に抗して操作片受け部12fの挿入穴12hに第2押下げ力で没入させ、操作ピン27をピン係止孔26aから離脱させる(図6)。このとき、操作ピン27の第2押下げ力を1N〜2Nの範囲内に設定したので、比較的小さい力で操作ピン27をピン係止孔26aから離脱させることができる。この状態で、操作片26cの押下げを解除すると、レバー本体26bが操作片26cとともに第2ばね32の弾性力により上方に回転する(図1及び図3)。この結果、レバー本体26bが揺動許容位置に達して、本体脚12のフロント車軸24に対する揺動が許容されるので、車輪付き杖10を杖として使用し、この杖10の把持部11を操作して方向転換するときに、一対の前輪19,19が路面43に接地した状態で方向転換できる。従って、バランスを崩すことなく安定した状態で方向転換することができる。このように、操作片26cを操作して操作ピン27にピン係止孔26aを係止させるか、又は操作ピン27を操作片受け部12fの挿入穴12hに没入させてピン係止孔26aから離脱させるという簡単な操作で、本体脚12のフロント車軸24に対する揺動を阻止又は許容できる。 On the other hand, in a state where the hole edge of the pin locking hole 26a is locked to the operation pin 27 to prevent the main body leg 12 from swinging with respect to the front axle 24 (FIGS. 2 and 5), the operation pin 27 is set to the first spring. The operation pin 27 is disengaged from the pin locking hole 26a by immersing it in the insertion hole 12h of the operation piece receiving portion 12f with a second pushing force against the elastic force of 31 (FIG. 6). At this time, since the second pushing force of the operation pin 27 is set within the range of 1N to 2N, the operation pin 27 can be disengaged from the pin locking hole 26a with a relatively small force. When the pressing of the operation piece 26c is released in this state, the lever body 26b rotates upward together with the operation piece 26c due to the elastic force of the second spring 32 (FIGS. 1 and 3). As a result, the lever main body 26b reaches the swing allowable position, and the swing of the main body leg 12 with respect to the front axle 24 is allowed. Therefore, the wheeled cane 10 is used as a cane to operate the grip portion 11 of the cane 10. When the direction is changed, the direction can be changed with the pair of front wheels 19 and 19 touching the road surface 43. Therefore, the direction can be changed in a stable state without losing the balance. In this way, the operation piece 26c is operated to lock the pin locking hole 26a to the operation pin 27, or the operation pin 27 is immersed in the insertion hole 12h of the operation piece receiving portion 12f from the pin locking hole 26a. The swing of the main body leg 12 with respect to the front axle 24 can be prevented or allowed by a simple operation of detaching.

更に、第3ばね33が本体脚12内に位置するフロント車軸24のうち本体脚12の内壁面近傍に位置する部分を下方に略均等に付勢するので、本体脚12のフロント車軸24に対する揺動を許容した状態で(図9)、把持部11から手を離しても、本体脚12が第3ばね33の弾性力により略垂直に保たれる。この結果、本体脚12のフロント車軸24に対する揺動を阻止したときより安定感はないけれども、杖10を自立した状態に保つことができる。また、本体脚12のフロント車軸24に対する揺動を許容した状態で、車輪付き杖10を持ち上げたときに、フロント車軸24が前輪19,19とともに左右に揺動するのを第3ばね33の弾性力により阻止できる。 Further, since the third spring 33 urges the portion of the front axle 24 located in the main body leg 12 near the inner wall surface of the main body leg 12 substantially evenly downward, the main body leg 12 swings with respect to the front axle 24. Even if the hands are released from the grip portion 11 in a state where the movement is allowed (FIG. 9), the main body legs 12 are kept substantially vertical by the elastic force of the third spring 33. As a result, the cane 10 can be kept in an independent state, although it is less stable than when the main body leg 12 is prevented from swinging with respect to the front axle 24. Further, when the wheeled cane 10 is lifted while allowing the main body leg 12 to swing with respect to the front axle 24, the elasticity of the third spring 33 causes the front axle 24 to swing left and right together with the front wheels 19 and 19. It can be stopped by force.

<第2の実施の形態>
図1〜図11及び図16は、本発明の第2の実施の形態を示す。図1〜図11及び図16において、図1〜図15と同一符号は同一部品を示す。この実施の形態では、第1の実施の形態の補助脚、一対の後輪及び一対の連結ステーを有せず、車輪は一対の前輪19,19のみからなる。また、図16中の符号60,60は、一対のブレーキシューである。ブレーキレバー(図示せず)はブレーキシュー61にブレーキケーブル(図示せず)により連結され、このブレーキケーブルは本体脚12内に配索される。これによりブレーキケーブルの大部分が露出しないので、杖60の見栄えを損なわないようになっている。上記以外は、第1の実施の形態と同一に構成される。
<Second Embodiment>
1 to 11 and 16 show a second embodiment of the present invention. In FIGS. 1 to 11 and 16, the same reference numerals as those in FIGS. 1 to 15 indicate the same parts. In this embodiment, the auxiliary legs, the pair of rear wheels, and the pair of connecting stays of the first embodiment are not provided, and the wheels consist of only a pair of front wheels 19, 19. Reference numerals 60 and 60 in FIG. 16 are a pair of brake shoes. The brake lever (not shown) is connected to the brake shoe 61 by a brake cable (not shown), and the brake cable is arranged in the main body leg 12. As a result, most of the brake cable is not exposed, so that the appearance of the cane 60 is not spoiled. Other than the above, the configuration is the same as that of the first embodiment.

このように構成された車輪付き杖60では、第3ばね33が本体脚12内に位置するフロント車軸24のうち本体脚12の内壁面近傍に位置する部分を下方に略均等に付勢するので、本体脚12のフロント車軸24に対する揺動を許容した状態で、本体脚12が第3ばね33の弾性力により略垂直に保たれる。この結果、本体脚12の左右への揺動をある程度抑制できる。上記以外の動作は、第1の実施の形態の動作と略同様であるので、繰返しの説明を省略する。 In the wheeled cane 60 configured in this way, the third spring 33 urges the portion of the front axle 24 located in the main body leg 12 near the inner wall surface of the main body leg 12 substantially evenly downward. The main body leg 12 is kept substantially vertical by the elastic force of the third spring 33 in a state where the main body leg 12 is allowed to swing with respect to the front axle 24. As a result, the swing of the main body leg 12 to the left and right can be suppressed to some extent. Since the operations other than the above are substantially the same as the operations of the first embodiment, the repeated description will be omitted.

なお、上記第1及び第2の実施の形態では、第3ばねを単一の圧縮コイルばねにより構成したが、第3ばねを一対の引張コイルばねにより構成してもよい。この場合、一対の引張コイルばねからなる一対の第3ばねは、第2ピンとフロント車軸との間に本体脚の内壁面にそれぞれ近接して介装される。これにより一対の第3ばねは、本体脚内に位置するフロント車軸のうち本体脚の内壁面近傍に位置する部分をそれぞれ上方に略均等に付勢するので、本体脚のフロント車軸に対する揺動を許容した状態で、把持部から手を離しても、本体脚が一対の第3ばねの弾性力により略垂直に保たれる。この結果、本体脚のフロント車軸に対する揺動を阻止したときより安定感はないけれども、杖を自立した状態に保つことができる。 In the first and second embodiments, the third spring is composed of a single compression coil spring, but the third spring may be composed of a pair of tension coil springs. In this case, a pair of third springs composed of a pair of tension coil springs are interposed between the second pin and the front axle in close proximity to the inner wall surface of the main body leg. As a result, the pair of third springs urge the portion of the front axle located in the main body leg near the inner wall surface of the main body leg substantially evenly upward, so that the main body leg swings with respect to the front axle. Even if the hand is released from the grip portion in the allowable state, the main body legs are kept substantially vertical by the elastic force of the pair of third springs. As a result, the cane can be kept in an independent state, although it is less stable than when the main body leg is prevented from swinging with respect to the front axle.

10,60 車輪付き杖
11 把持部
12 本体脚
12c 車軸用長孔
12f 操作片受け部
12g 操作片当接面
13 アッパピン
14 補助脚
16 連結ステー
19 前輪
21 第1ピン
22 第2ピン
23 後輪
24 フロント車軸
26 レバー部材
26a ピン係止孔
26b レバー本体
26c 操作片
27 操作ピン
31 第1ばね
32 第2ばね
33 第3ばね
10,60 Cane with wheels 11 Grip part 12 Main body leg 12c Long hole for axle 12f Operation piece receiving part 12g Operation piece contact surface 13 Upper pin 14 Auxiliary leg 16 Connecting stay 19 Front wheel 21 1st pin 22 2nd pin 23 Rear wheel 24 Front axle 26 Lever member 26a Pin locking hole 26b Lever body 26c Operation piece 27 Operation pin 31 1st spring 32 2nd spring 33 3rd spring

Claims (4)

上端に把持部が設けられ下端に横方向に並んで一対の前輪が設けられたパイプ状の本体脚を備えた車輪付き杖において、
前記本体脚の下端近傍に前記本体脚の長手方向に延びかつ横方向に互いに対向して形成された一対の車軸用長孔と、前記一対の車軸用長孔に遊挿され前記一対の前輪を回転可能に支持するフロント車軸と、前記本体脚及び前記フロント車軸にこれらの直交する方向から挿通され前記本体脚を前記フロント車軸に対して横方向に揺動可能に保持する第1ピンと、前記車軸用長孔より上方の前記本体脚に前記フロント車軸と平行に挿通された第2ピンと、前記車軸用長孔より上方の前記本体脚の外周面を挟むように上下方向に回動可能に前記本体脚に取付けられ上方に回転することにより前記フロント車軸から離れて前記本体脚の前記フロント車軸に対する揺動を許容する位置に達し下方に回転することにより前記フロント車軸に係合して前記本体脚の前記フロント車軸に対する揺動を阻止する位置に達する略コ字状のレバー部材と、前記本体脚に出没可能に取付けられ第1ばねの弾性力により上方に突出する方向に付勢される操作ピンと、前記レバー部材に形成され前記操作ピンの上部が挿入可能であって挿入時に前記操作ピンの上部に孔縁が係止可能なピン係止孔と、前記レバー部材を上方に回転するように付勢する第2ばねと、前記本体脚に内蔵されかつ前記第2ピンと前記フロント車軸との間に介装され前記本体脚内に位置する前記フロント車軸のうち少なくとも前記本体脚の内壁面近傍に位置する部分を下方又は上方に略均等に付勢する第3ばねとを更に備え、
前記操作ピンを前記本体脚に没入させたときに、前記操作ピンの上部が前記ピン係止孔から外れ、前記レバー部材が前記第2ばねの弾性力により上方に回転して、前記本体脚の前記フロント車軸に対する揺動が許容されるように構成されたことを特徴とする車輪付き杖。
In a cane with wheels equipped with a pipe-shaped main body leg having a grip portion at the upper end and a pair of front wheels arranged side by side at the lower end.
A pair of long axle holes extending in the longitudinal direction and laterally opposed to each other in the vicinity of the lower end of the main body leg, and the pair of front wheels loosely inserted into the pair of long axle holes. A front axle that rotatably supports, a first pin that is inserted into the main body leg and the front axle from these orthogonal directions and holds the main body leg so as to be swingable in the lateral direction with respect to the front axle, and the axle. The main body can be rotated in the vertical direction so as to sandwich the second pin inserted in the main body leg above the long hole in parallel with the front axle and the outer peripheral surface of the main body leg above the long hole for the axle. When attached to a leg and rotated upward, it separates from the front axle to reach a position where the main body leg allows swinging with respect to the front axle, and when rotated downward, it engages with the front axle and engages with the main body leg. A substantially U-shaped lever member that reaches a position that prevents swinging with respect to the front axle, and an operation pin that is shuntably attached to the main body leg and urged in a direction that protrudes upward by the elastic force of the first spring. A pin locking hole formed in the lever member and capable of inserting the upper part of the operation pin and having a hole edge locked on the upper part of the operation pin at the time of insertion, and urging the lever member so as to rotate upward. It is located at least near the inner wall surface of the main body leg among the front axles that are built in the main body leg and are interposed between the second pin and the front axle and are located in the main body leg. Further provided with a third spring that urges the portion substantially evenly downward or upward.
When the operation pin is immersed in the main body leg, the upper part of the operation pin is disengaged from the pin locking hole, and the lever member is rotated upward by the elastic force of the second spring to cause the main body leg. A cane with wheels, which is configured to allow swinging with respect to the front axle.
下端に横方向に並んで一対の後輪が設けられ上端が前記本体脚の上部にアッパピンを介して取付けられた補助脚と、前記アッパピンを中心に前記補助脚を前記本体脚に折畳み可能に前記本体脚の下部と前記補助脚の下部とを連結する一対の連結ステーとを更に備えた請求項1記載の車輪付き杖。 A pair of rear wheels are provided laterally at the lower end and the upper end is attached to the upper part of the main body leg via an upper pin, and the auxiliary leg can be folded into the main body leg around the upper pin. The wheeled cane according to claim 1, further comprising a pair of connecting stays for connecting the lower portion of the main body leg and the lower portion of the auxiliary leg. 記レバー部材が、前記第2ピンの両端に前記本体脚の外周面を挟むように上下方向に回動可能に取付けられ上方に回転して前記フロント車軸から離れる前記揺動許容位置に達し下方に回転して前記フロント車軸に係合する前記揺動阻止位置に達する略コ字状のレバー本体と、このレバー本体の中央下部から前記本体脚から離れる方向に突設され前記レバー本体を下方に回転させるために押下げられるとともに前記ピン係止孔が形成された操作片とを有し、
前記操作片を前記レバー本体とともに下方に回転させたときに前記操作片の下面が当接する操作片当接面が形成された操作片受け部が前記本体脚に設けられ、
前記操作ピンが前記操作片受け部に収容され上部が前記操作片当接面から上方に突出可能に構成され、
前記第1ばねが前記操作片受け部に内蔵され前記操作ピンをその上部が前記操作片当接面から突出するように付勢するように構成された請求項1又は2記載の車輪付き杖。
Lower front Symbol lever member reaches the oscillating allowable position rotatably attached to the vertical direction so as to sandwich the outer peripheral surface by rotating upwardly away from the front axle of the body legs at both ends of the second pin A substantially U-shaped lever body that rotates to reach the swing prevention position that engages with the front axle, and a lever body that is projected downward from the lower center of the lever body in a direction away from the body leg. It has an operation piece that is pushed down to rotate and has the pin locking hole formed.
An operation piece receiving portion having an operation piece contact surface with which the lower surface of the operation piece abuts when the operation piece is rotated downward together with the lever body is provided on the main body leg.
The operation pin is housed in the operation piece receiving portion, and the upper portion is configured to be able to project upward from the operation piece contact surface.
The wheeled cane according to claim 1 or 2, wherein the first spring is built in the operation piece receiving portion and the operation pin is urged so that the upper portion thereof protrudes from the operation piece contact surface.
前記レバー部材を下方に回転させてこのレバー部材を前記操作ピンの頂面に当接させたときの前記レバー部材の第1押下げ力が1N〜2Nの範囲内に設定され、前記操作ピンの上部に前記ピン係止孔の孔縁が係止した状態で、前記操作ピンを前記第1ばねの弾性力に抗して前記本体脚に没入させたときの前記操作ピンの第2押下げ力が1N〜2Nの範囲内に設定された請求項1ないし3いずれか1項に記載の車輪付き杖。 The first pushing force of the lever member when the lever member is rotated downward to bring the lever member into contact with the top surface of the operation pin is set within the range of 1N to 2N, and the operation pin The second pushing force of the operating pin when the operating pin is immersed in the main body leg against the elastic force of the first spring with the hole edge of the pin locking hole locked on the upper portion. The wheeled cane according to any one of claims 1 to 3, wherein is set in the range of 1N to 2N.
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