JP2009268655A - Walking stick with tiltable forearm supporting tool - Google Patents

Walking stick with tiltable forearm supporting tool Download PDF

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JP2009268655A
JP2009268655A JP2008120875A JP2008120875A JP2009268655A JP 2009268655 A JP2009268655 A JP 2009268655A JP 2008120875 A JP2008120875 A JP 2008120875A JP 2008120875 A JP2008120875 A JP 2008120875A JP 2009268655 A JP2009268655 A JP 2009268655A
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cane
walking
forearm
grip handle
forearm holder
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Koichi Inoue
浩一 井上
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Abstract

<P>PROBLEM TO BE SOLVED: To allow a walking person to obtain a natural walking posture without forcing the fist and elbow to change the angles of joints while receiving a proper biasing force, by tilting a forearm holding tool backward as against a stick pole which is tilted forward in a walking process. <P>SOLUTION: As against the side of the stick pole 10 which is tilted and rotated forward when walking is advanced (E)→(F)→(G), a movable side comprising a grip handle 20 and the forearm holding tool 11 is tilted and rotated backward relatively. Since the grip handle and the forearm holding tool move forward without changing the angle for a walking person, the movement of the arm is not forced by the movement of the stick. Thus, without forcing the joints of the fist and the elbow to bend and stretch frequently like a conventional Lofstrand crutch, natural walking is attained while keeping the proper angles of both of the joints. While receiving a gradually increasing proper biasing force from the forearm holding tool, weight can stably be applied to the palm gripping the grip handle safely without making the stick unstable. Loads to the wrist and arm of the walking person is reduced, so that walking without vertical movement nor choppy movement is attained naturally. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、前腕保持具が可傾の杖に関するものである。   The present invention relates to a cane having a tiltable forearm holder.

「特許文献１」の明細書の記載の一部及び図２、図３５、図３６を引用して背景技術を具申する。
図１は、引用文献の図３５（従来型の「T型杖」による歩行過程中の３状態を示す側面図）を引用し、
図２は、引用文献の図３６（従来型の「ロフストランドクラッチ」による歩行過程中の３状態を示す側面図）を引用し、
図３は、引用文献の図２（実施例１の杖による一歩の歩行過程中の３状態を示す側面図）を引用掲載した。（以下引用始め）
一本の棒状体の上端部に略直角な握り柄を備えたいわゆる「T型杖」が歩行を補助するものとして一般的に使用されており、歩行に伴って杖柱が振り子のように傾きを変えて動き（以後「傾動」と記す）、リズム良く体重を支えるものである。図３５（本書の図１）に示す一歩の歩行過程において、
（E）は歩行開始時に杖を前方即ち進行方向へ振り出して体重を預けようとする状態、
（F）は体重を預けた杖がおよそ直立した状態、
（G）は歩行者の一歩前進に伴って、杖が前方に傾斜した状態を示している。
いずれの状態においても、杖を操作するのに好適な上腕および前腕の角度を変えることなく手首関節の動作のみによって杖を操作できる。即ち腕の動きの少ない自然で滑らかな歩行を介助するものである。
その一方で握り柄に加わる荷重が杖を倒そうと作用するので、杖柱を不倒に維持するために掌の操作で握り柄に回転力を加えなければならない。杖の傾斜が最大となる（E）および（G）の状態では、それぞれ矢印で示した反時計方向および時計方向へ加えるべき回転力が最大となる。また（F）の状態は前後どちらの方向へも倒れ得るいわゆる傾動の死点であって、この状態で体重を預けて静止するためには手首関節での杖の倒れ制御が難しく杖がふらつき不安定であるが、連続した歩行過程では滑らかに通過できる。
また杖の左右方向の倒れについても、（E）（F）（G）すべての状態においてどちらの方向へも倒れ得るいわゆる傾動の死点であって手首関節による杖の倒れ制御が必要である。握り柄の掌が当たる部分を左右方向へ広げて手のひらの加重負担を和らげようとするものがあり、左右方向の不安定なふらつきを若干軽減しているが充分とは言えない。
このように「T型杖」の場合は握り柄を握る掌だけの操作に依存しているため、預ける体重が増加するほど杖がふらついて操作が不安定になり、手首の関節に負担がかかることになる。したがって脚力が減退している高齢者や傷病者がある程度の体重を預けて使用する杖としては十分な歩行介助ができない。
この欠点を補うものとして、クリントン大統領が使ったことで知られる「ロフストランドクラッチ」と称する杖が使用されている。これは杖柱を更に上方に伸ばして形成したその上端に前腕部を挿通するべく筒状に成型されたカフと称する前腕保持具を備えており、前腕部全体で杖の回転を抑え不安定なふらつきを制御して体重を預けるものである。したがって静止時にも動作時にもふらつきを抑えるようにコントロールすることができ手首の負担が軽減される。脚部に障害を持つ等の傷病者が一歩ずつ小刻みに歩行するための杖として、安定して体重を支えることができ好適である。
その一方で杖の傾斜運動に伴って前腕保持具も傾動するため、図３６（本書の図２）の（E）（F）（G）に示すように歩行過程を通して杖を突くのに適した前腕の角度を保つことができず、肘関節の曲げ伸ばしや肩関節の回転動作（以後「回動」と記す）を強要されることになる。従って一歩毎に身体の上下動を伴うことになり歩幅の少ない断続的な歩行となってしまう。（F）〜（G）の状態では前腕保持具が前方へ傾動して前腕を前方へ押し出すことになり、殊に（G）の状態では歩行者は過度の圧迫を受けた肘関節を不自然に伸ばさざるを得ず身体全体が上方へ伸びきってしまうことになり、手首関節のみを動かして杖を操作できる「T型杖」のように腕の動きの少ない自然で滑らかな歩行ができない。
…中略…
握り柄の上方に配置された前腕保持具が歩行者の前腕で押圧されると杖柱に対して後方へ傾動可能に連結する連結手段と、押圧が解除されると元位置に復するよう付勢する付勢手段を備えた構成とし、上記した「T型杖」および「ロフストランドクラッチ」両者の長所を結合させ且つ欠点を補うための課題を解決しようとする。
…中略…
本発明の前腕保持具が可傾の杖は、 …中略… 以下の効果が生まれる。
図２（本書の図３）の（Ｅ）（Ｆ）（Ｇ）に示す歩行過程で、杖柱は前方へ傾動して行く。杖を突くのに適した角度を保とうとする歩行者の前腕が、杖柱に伴って前方へ傾動しようとする前腕保持具を後方へ押圧し、杖柱に対して後方へ傾動する。適度な付勢力を前腕保持具から受ける前腕部が握り柄を握る掌と相まって小さな力で矢印方向の大きな回転力を与えるので、歩行者は杖を突くのに適した前腕の角度を保ったままで手首、肘関節の負担を強要されることなく杖に体重を預けることができる。換言すれば肘関節が不自然な屈伸を強要されることなく適度に曲げた前腕の自然な角度のままで握り柄を握って杖を操作することができ、前腕全体が前腕保持具によって適度な付勢力を受けながら倒れ難く安定して支持されるので、杖がふらつくことのない自然で滑らかな歩行ができる。手首および腕の負担を軽減し、上下動のない自然な姿勢のままでの連続歩行を介助できる。そして更に、次のステップに移ろうとして杖から抜重すると、付勢力によって杖柱が前方に振り出される。従って特に杖を前方に振り出そうとしなくとも自然に杖が動作し、リズミカルな連続歩行が促されると言う効果も生まれる。（引用終わり） The background art will be described with reference to a part of the description of “Patent Document 1” and FIGS. 2, 35, and 36.
FIG. 1 quotes FIG. 35 of the cited document (a side view showing three states during the walking process by the conventional “T-shaped cane”),
FIG. 2 quotes FIG. 36 of the cited document (a side view showing three states during the walking process by the conventional “Lofstrand clutch”),
FIG. 3 is a citation of FIG. 2 of the cited document (a side view showing three states during a one-step walking process with a cane of Example 1). (Begin quote below)
A so-called `` T-shaped cane '' with a grip handle that is substantially perpendicular to the upper end of a single rod is generally used to assist walking, and the cane column tilts like a pendulum as it walks It changes the movement (hereinafter referred to as “tilting”) and supports weight with a good rhythm. In the one-step walking process shown in FIG. 35 (FIG. 1),
(E) is a state of trying to leave the weight by swinging the cane forward, that is, in the traveling direction at the start of walking,
(F) is a state where the cane carrying the weight is upright,
(G) shows a state in which the cane is tilted forward as the pedestrian advances one step.
In any state, the cane can be operated only by the operation of the wrist joint without changing the angles of the upper arm and the forearm suitable for operating the cane. That is, it assists natural and smooth walking with less arm movement.
On the other hand, since the load applied to the grip handle acts to defeat the cane, a rotational force must be applied to the grip handle by the operation of the palm in order to keep the cane column indestructible. In the states (E) and (G) where the inclination of the cane is maximized, the rotational force to be applied in the counterclockwise and clockwise directions indicated by the arrows is maximized. The state of (F) is a so-called tilting dead point that can fall in either the forward or backward direction. In this state, it is difficult to control the fall of the cane at the wrist joint, and the cane does not fluctuate. Although it is stable, it can pass smoothly in a continuous walking process.
Also, the cane can be tilted in any direction (E), (F), or (G), so that the cane can be tilted in any direction, and the cane must be controlled by the wrist joint. There are some that try to relieve the weight burden of the palm by extending the part where the palm of the handle hits in the left-right direction, which slightly reduces the unstable fluctuation in the left-right direction, but it is not enough.
In this way, the “T-shaped cane” relies on the operation of only the palm to grip the handle, so the more the weight you keep, the more the cane fluctuates and the operation becomes unstable, and the wrist joint is burdened. It will be. Therefore, it cannot provide sufficient walking assistance as a walking stick that is used by elderly people and patients with reduced leg strength with a certain amount of weight.
To compensate for this drawback, a cane called “Lofstrand Clutch”, which is known to have been used by President Clinton, is used. This is provided with a forearm holder called a cuff that is formed in a cylindrical shape so that the forearm part can be inserted through the upper end of the cane column that is formed by extending further upward. It controls the wandering and deposits weight. Therefore, control can be performed to suppress wobbling both at rest and during operation, reducing the burden on the wrist. It is suitable as a cane for a disabled person such as a person with a disability in a leg to walk step by step, and can support a weight stably.
On the other hand, the forearm holder also tilts as the cane tilts, making it suitable for poking the cane through the walking process as shown in (E), (F), and (G) of Fig. 36 (Fig. 2). The angle of the forearm cannot be maintained, and the elbow joint is bent and stretched and the shoulder joint is rotated (hereinafter referred to as “rotation”). Therefore, the body is moved up and down every step, resulting in intermittent walking with a small stride. In the state of (F) to (G), the forearm holder tilts forward and pushes the forearm forward. In particular, in the state of (G), the pedestrian is unnatural about the elbow joint that received excessive pressure. As a result, the whole body will be stretched upwards, and natural and smooth walking with little movement of the arm is not possible like the “T-shaped cane” that can operate the cane only by moving the wrist joint.
... Omitted ...
When the forearm holder placed above the grip handle is pressed by the pedestrian's forearm, the connecting means is connected to be able to tilt backward with respect to the cane column, and is attached so as to return to the original position when the press is released. The present invention aims to solve the problem of combining the advantages of both the above-mentioned “T-shaped cane” and “Lofstrand clutch” and compensating for the drawbacks.
... Omitted ...
The cane with which the forearm holder according to the present invention is tiltable is ...
In the walking process shown in (E), (F), and (G) of FIG. 2 (FIG. 3 in this document), the cane column tilts forward. A pedestrian's forearm trying to maintain an angle suitable for striking the cane pushes a forearm holder that tries to tilt forward along with the cane column and tilts backward with respect to the cane column. The forearm that receives an appropriate urging force from the forearm holder gives a large rotational force in the direction of the arrow with a small force coupled with the palm gripping the handle, so that the pedestrian maintains the forearm angle suitable for striking the cane. You can leave your weight on the cane without compromising the wrist and elbow joints. In other words, the elbow joint can be operated with the grip handle while maintaining the natural angle of the forearm that is appropriately bent without being forced to unnaturally bend and stretch. Because it is supported stably without being overturned while receiving an urging force, it is possible to walk naturally and smoothly without wobbling. The burden on the wrist and arm can be reduced, and continuous walking with a natural posture without vertical movement can be assisted. Further, when the weight is removed from the cane to move to the next step, the cane column is swung forward by the biasing force. Therefore, even if it does not try to swing the cane forward, the cane moves naturally, and the effect that rhythmic continuous walking is promoted is also born. (End of quotation)

特許第３６０５７６９号「前腕保持具が可傾の杖、および杖に着脱できる前腕保持具の可傾連結装置」Japanese Patent No. 3605769 “cane in which the forearm holder is tiltable, and a tilting connecting device for the forearm holder that can be attached to and detached from the cane”

「特許文献１」の杖は、実施例３〜８に示された連結手段によって、上端に前腕保持具を備える回動体側が連結体を固着する杖柱側に対して後退回動可能に連結されており、握り柄が連結体へ連結固定され或いは連結体と一体で形成されて杖柱へ取り付け固定されている。このため前腕保持具を擁する回動体側が握り柄を擁する杖柱に対して後退回動するのに伴って、握り柄を握る拳の角度が変わったり前腕保持具に当接する前腕の部位にずれを生じたりすることになると記しており、実施例６〜８では、３節あるいは４節リンク機構による連結手段によって前腕の当接部位のずれを極小に押さえようとする構成が示されている。本発明では握り柄ならびに前腕保持具両者を回動体側に取付け固定することによって、こうした手首や肘の関節に角度変化を強いることなく且つ前腕保持具との当接部位のずれがない拳及び前腕の自然で滑らかな操作感を可能にするための課題を根本から解決しようとするものである。 The cane of “Patent Document 1” is connected by the connecting means shown in Examples 3 to 8 so that the rotating body side including the forearm holder at the upper end can be rotated backward with respect to the cane column side to which the connecting body is fixed. The grip handle is connected and fixed to the connecting body or formed integrally with the connecting body and fixed to the cane pillar. For this reason, as the rotating body holding the forearm holder moves backward with respect to the cane column holding the handle, the angle of the fist holding the handle changes or the forearm part that contacts the forearm holder shifts. Examples 6 to 8 show a configuration in which the displacement of the contact portion of the forearm is minimized by connecting means using a three- or four-bar linkage mechanism. In the present invention, by attaching and fixing both the grip handle and the forearm holder to the rotating body side, the fist and the forearm without causing a change in the angle of the wrist and elbow joints and without shifting the contact portion with the forearm holder It is intended to fundamentally solve the problem of enabling a natural and smooth operation feeling.

直立した棒状に伸長して形成された杖柱と、杖柱の上方に具備された握り柄と、握り柄の上方に配置されパイプ状もしくは開口部を前方即ち進行方向へ向けたハーフパイプ状に直立方向へ短く伸びて形成された前腕保持具と、前腕保持具が後方へ押圧されると杖柱に対してその軸芯を含む進行方向面内で後退移動可能に連結する連結手段と、押圧が解除されると元位置に復するよう付勢する付勢手段とを備えた杖において、
本発明による杖は、相互位置不動に連結固定された前記握り柄及び前記前腕保持具両者がが、前記連結手段により前記杖柱に対して後退移動可能に連結され、且つ前記付勢手段により元位置に復する方向へ付勢されていることを特徴とするものである。また、 A cane pillar formed by extending in an upright bar shape, a grip handle provided above the cane pillar, and a pipe shape or a half pipe shape with the opening directed forward, that is, in the traveling direction, disposed above the handle handle A forearm holder formed to extend short in the upright direction, and a connecting means for connecting the forearm holder so that it can move backward in the advancing direction plane including its axis when the forearm holder is pressed backward, and pressing In a cane provided with a biasing means for biasing to return to the original position when is released,
In the cane according to the present invention, both the grip handle and the forearm holder fixedly connected to each other are fixedly connected to the cane column by the connecting means so as to be movable backward, and the urging means is used to restore the cane. It is biased in the direction to return to the position. Also,

前記連結手段が、前記杖柱の上部に取付け固定され上端部に回動支承部Ａを備えた連結体と、下端部に回動被承部Ａを備えた回動体と、前記回動体が前記杖柱に対して後方へ傾斜して回転動作できる範囲を限定する回動規制手段とによって構成され、前記連結体および前記回動体両者の回動部Ａが互いに回転動作自在に支承し合うものであって、前記回動体の前記回動被承部Ａが前記握り柄の被把持領域の中央位置直下近傍に位置するよう構成されたものである。   The connecting means is fixedly attached to the upper part of the cane column and has a connecting body having a rotating support part A at its upper end, a rotating body having a rotating supported part A at its lower end, and It is comprised by the rotation control means which restrict | limits the range which can incline back and can rotate with respect to a cane pillar, and the rotation part A of both the said connection body and the said rotation body supports each other rotatably. And the said rotation receiving part A of the said rotary body is comprised so that it may be located in the vicinity of the center position of the holding area of the said handle handle.

本発明の前腕保持具の可傾の杖によれば、握り柄及び前腕保持具両者が回動体側にあって相対位置を不動に保ちながら杖柱に対して回動するため、握り柄を握る拳の角度が変わったり前腕保持具に当接する前腕の部位にずれを生じたりすることがない。従って歩行過程において手首及び肘の関節角度を大きく変えることなく杖を操作できることになる。即ち肘関節が不自然な屈伸を強要されることなく適度に曲げた前腕の自然な角度のままで握り柄を握って杖を操作することができるのである。また、回動体側の回動中心の位置が握り柄の被把持領域の中央位置直下近傍に位置することによって、前腕保持具に当接する歩行者の前腕の押圧力が、可動側を杖柱側に対して効果的に後方へ傾斜回転（以降「後傾」と記す）をさせる結果が得られるものである。   According to the tilting cane of the forearm holder of the present invention, both the grip handle and the forearm holder are on the rotating body side and rotate with respect to the cane column while keeping the relative position fixed, so the grip handle is gripped. There is no change in the angle of the fist or any deviation of the forearm portion that contacts the forearm holder. Therefore, the cane can be operated without greatly changing the joint angles of the wrist and elbow during the walking process. That is, the elbow joint can be operated with the grip handle while maintaining the natural angle of the forearm that is appropriately bent without being forced to bend and stretch unnaturally. In addition, since the position of the center of rotation on the rotating body side is located immediately below the center position of the gripped area of the grip handle, the pressing force of the pedestrian's forearm that contacts the forearm holder is As a result, it is possible to obtain a result of effectively tilting and rotating backward (hereinafter referred to as “backward tilt”).

図４は、本実施例の杖による一歩の歩行過程中の３状態を示す側面図であり、
（E）は歩行開始時に杖を前方へ振り出して体重を預けようとする状態、
（F）は体重を預けた杖がおよそ直立した状態、
（G）は歩行者の一歩前進に伴って、杖が前方に傾斜した状態を示している。
まず（E）では、前腕保持具が元位置にあって歩行者の前腕は杖を使って歩行するための自然で好適な角度である。そして歩行が（F）へ進むと杖柱が直立した状態となり、更に（G）へ進むと杖柱は次第に前方へ傾斜して行き、これに伴って前腕保持具は杖操作に好適な角度を維持する前腕によって後方へ押し出され杖柱に対して後方へ傾斜する角度が増加して行く。この間、握り柄及び前腕保持具両者を擁する回動体側ならびに歩行者の前腕がほぼ同じ姿勢を保ちながら前方へ水平移動するのに対して、杖柱側が接地する下端部を中心に前方へ回動して行く。 FIG. 4 is a side view showing three states during a one-step walking process with the walking stick of the present embodiment.
(E) is a state that tries to deposit weight by swinging the cane forward at the start of walking,
(F) is a state where the cane carrying the weight is upright,
(G) shows a state in which the cane is tilted forward as the pedestrian advances one step.
First, in (E), the forearm holder is in its original position, and the pedestrian's forearm is a natural and suitable angle for walking with a cane. When walking proceeds to (F), the cane column is in an upright state, and when further proceeding to (G), the cane column gradually tilts forward, and accordingly the forearm holder has an angle suitable for cane operation. The angle which is pushed backward by the forearm to be maintained and tilted backward with respect to the cane column increases. During this time, the rotating body side that holds both the handle and the forearm holder and the pedestrian's forearm move horizontally while maintaining the same posture, while the cane column side rotates forward around the lower end that contacts the ground. Go.

しかもこの過程の中で握り柄と前腕保持具の相対位置が不変のため歩行者の拳と肘の姿勢も変わることなく、肘の当接位置もずれることがない。そしてこの間前腕保持具から（E）→（F）→（G）と次第に増加する適度な付勢力を受けながら、前腕は杖を使って歩行するための自然で好適な角度変化を許容されて（実際にはT型杖を使って歩行する場合でも前腕の自然で好適な角度は歩行過程で若干の変化がある）握り柄および前腕保持具により無理なく支えられる。
前腕全体が前腕保持具によって適度な付勢力を受けながら倒れ難く安定して支持され、よりいっそう杖がふらつくことのない自然で滑らかな歩行ができ、手首および腕の負担を軽減し、上下動のない自然な姿勢のままでの連続歩行を介助できる。 Moreover, since the relative positions of the grip pattern and the forearm holder are not changed during this process, the posture of the pedestrian's fist and elbow does not change, and the contact position of the elbow does not shift. During this time, the forearm is allowed a natural and suitable angle change for walking with a cane while receiving a moderate urging force increasing gradually from the forearm holder (E) → (F) → (G) ( In fact, even when walking with a T-shaped cane, the natural and suitable angle of the forearm varies slightly during the walking process) and can be reasonably supported by the grip handle and forearm holder.
The entire forearm is supported by the forearm holder with a moderate urging force, and it is supported stably without falling down, making it possible to walk more naturally and smoothly without wobbling, reducing the burden on the wrist and arm, and moving up and down Can support continuous walking with no natural posture.

本発明に係わる前腕保持具が可傾の杖を好適な実施例について、その形態を添付図面に基づいて説明する。なお添付図面の側面図において、杖を突いて歩行する方向を前方とし左方に示すこととする。   A preferred embodiment of a cane having a tiltable forearm holder according to the present invention will be described with reference to the accompanying drawings. In the side view of the accompanying drawings, the direction of walking with a walking stick is defined as the front and the left is indicated.

図５は本発明を適用した実施例の杖を、回動支承部Ａを備えた連結体を擁する杖柱側と、回動被承部Ａを備えた回動体を擁する可動側（前腕保持具側）とを離間して図示した一部断面展開側面図である。   FIG. 5 shows a cane of an embodiment to which the present invention is applied, a cane column side holding a connecting body provided with a rotating support part A, and a movable side (forearm holder) holding a rotating body provided with a rotating supported part A. FIG.

連結体３０は、下方に開口した連結穴３６を備えており、直立して棒状に形成された杖柱１０の上端部を嵌合して取り付け固着しており、上方且つ前方寄りには回動軸２２を支承する回動支承穴３２を有する回動支承部Ａ３１が備わる。回動支承穴３２の後方には回動規制穴３３、さらにその後方には上方へ半円柱状に突き出て左右方向へ形成されたバネ受け突起３５が備わる。杖柱は高力アルミニウム管、連結体３０は強化樹脂あるいはアルミニウム等の軽金属から成型される。   The connecting body 30 includes a connecting hole 36 that opens downward, and is fitted and fixed to the upper end portion of the cane column 10 that is upright and formed in a rod shape. A rotation support portion A31 having a rotation support hole 32 for supporting the shaft 22 is provided. A rotation restricting hole 33 is provided at the rear of the rotation support hole 32, and a spring receiving protrusion 35 that protrudes upward in a semi-cylindrical shape and is formed in the left-right direction is provided behind the rotation restricting hole 33. The cane column is molded from a high-strength aluminum tube, and the connector 30 is molded from a reinforced resin or a light metal such as aluminum.

回動体５０は、前下方に回動軸２２によって支承される回動被承穴５２を有する回動被承部Ａ５１が備わる。回動被承穴５２の後方には回動規制ピン２３を支承する回動規制ピン穴５３、さらにその後方にはバネ受けピン２４を支承するバネ受けピン穴５４、さらにその後方には略直立して上方へ開口する２個の嵌合穴が備わる。２個のうち前方側の嵌合穴５７には握り柄２０の連結バー２１が挿入固着され、後方側の嵌合穴５８には、上端部に前腕保持具１１を取り付け保持する連結管１５の下端部が挿入固着されている。回動体５０は強化樹脂あるいはアルミニウム等の軽金属から成型される。   The rotating body 50 is provided with a rotation receiving portion A51 having a rotation receiving hole 52 supported by the rotation shaft 22 at the front and lower sides. A rotation restricting pin hole 53 for supporting the rotation restricting pin 23 is provided behind the turn receiving hole 52, a spring receiving pin hole 54 for supporting the spring receiving pin 24 is provided behind the turn receiving pin 52, and a substantially upright rearward thereof. Two fitting holes that open upward are provided. The connecting bar 21 of the grip handle 20 is inserted and fixed in the fitting hole 57 on the front side of the two, and the connecting tube 15 for attaching and holding the forearm holder 11 on the upper end of the fitting hole 58 on the rear side. The lower end is inserted and fixed. The rotating body 50 is molded from a reinforced resin or a light metal such as aluminum.

前腕保持具１１は、パイプ状もしくは開口部を前方即ち進行方向へ向けたハーフパイプ状に直立方向へ短く伸びて形成されており、後端部に左右方向へ貫通する回動支点穴１２を有する。連結管１５の上端部には、左右方向へ貫通する回動ピン支承穴１４を備えた冠体１３が固着されており、前腕保持具１１は回動支点穴１２及び回動ピン支承穴１４に挿通された回動支点ピン１６によって軸承されて連結管１５に対して回動可能である。前腕保持具１１及び冠体１３は樹脂成型によるものであり、連結管１５は高力アルミニウム管により形成される。   The forearm holder 11 is formed in a pipe shape or a half pipe shape whose opening is forward, that is, in a traveling direction, and is formed to extend short in the upright direction. . A crown 13 having a pivot pin support hole 14 penetrating in the left-right direction is fixed to the upper end portion of the connecting pipe 15, and the forearm holder 11 is attached to the pivot support hole 12 and the pivot pin support hole 14. It is supported by the inserted rotation fulcrum pin 16 and can be rotated with respect to the connecting pipe 15. The forearm holder 11 and the crown 13 are formed by resin molding, and the connecting pipe 15 is formed of a high-strength aluminum pipe.

図６は実施例の杖の可動側が未回転状態、即ち可動側が初期位置の状態での一部を断面した側面図である。
回動支承穴３２及び回動被承穴５２に回動軸２２が挿通されて、連結体３０に対して回動体５０が回動可能に支承されており、握り柄２０及び前腕保持具１１を擁する回動体５０側（以降可動側と記す）が杖柱側に対して回動可能に構成される。押しバネ４０の上端面に受け片Ｇ４４が当接し、下端面に受け片Ｓ４５が当接して略上下方向へ向けて配置されている。受け片Ｇ４４には左右方向への貫通穴が備えられ回動体５０のバネ受けピン穴５４に挿通されたバネ受けピン２４によって軸承されており、受け片Ｓ４５の下面には半円弧状に左右方向への貫通溝が備えられ連結体３０のバネ受け突起３５を収容嵌合して構成される付勢手段が、回動体５０のバネ受けピン穴５４の位置及び連結体３０のバネ受け突起３５の位置を互いに離間する方向へ付勢している。
連結体３０の回動規制穴３３内を通過している回動規制ピン２３が、回動体５０の回動規制ピン穴５３に支承固着されることによって構成された回動規制手段は、可動側が初期位置の状態では、回動規制ピン２３が回動規制穴３３の上部内壁に当接して押しバネ４０の付勢力を受け止めており、握り柄２０及び前腕保持具１１を擁する可動側が杖柱側に対する前方への回動姿勢を規制している。 FIG. 6 is a side view of a part of the cane according to the embodiment in which the movable side is not rotated, that is, the movable side is in the initial position.
The rotation shaft 22 is inserted into the rotation support hole 32 and the rotation receiving hole 52, and the rotation body 50 is rotatably supported with respect to the connection body 30. The grip handle 20 and the forearm holder 11 are attached to the connection body 30. The holding body 50 side (hereinafter referred to as the movable side) is configured to be rotatable with respect to the cane column side. The receiving piece G44 abuts on the upper end surface of the pressing spring 40, and the receiving piece S45 abuts on the lower end surface, and is arranged substantially in the vertical direction. The receiving piece G44 is provided with a through hole in the left-right direction, and is supported by a spring receiving pin 24 inserted into the spring receiving pin hole 54 of the rotating body 50. The lower surface of the receiving piece S45 is formed in a semicircular arc shape in the left-right direction. The biasing means that is provided with a through-groove and accommodates and fits the spring receiving projection 35 of the coupling body 30 includes the position of the spring receiving pin hole 54 of the rotating body 50 and the spring receiving projection 35 of the coupling body 30 The positions are urged in directions away from each other.
The rotation restricting means configured by the rotation restricting pin 23 passing through the rotation restricting hole 33 of the connecting body 30 being supported and fixed to the rotation restricting pin hole 53 of the rotating body 50 has a movable side on the movable side. In the initial position, the rotation restricting pin 23 abuts against the upper inner wall of the rotation restricting hole 33 and receives the urging force of the push spring 40, and the movable side holding the handle 20 and the forearm holder 11 is on the side of the cane pillar. The forward rotation posture with respect to is regulated.

図７は可動側が杖柱側に対して後方へ傾斜回転した終期状態での一部断面側面図である。後傾が進んだ終期状態での杖は、実際に使用される時の姿勢は図４（Ｇ）の状態となるが、本図では図６を参照して杖柱が直立した姿勢で図示した。
握り柄２０及び前腕保持具１１を擁する可動側が杖柱側に対して後方へ回動して押しバネ４０の長さが縮小しており、増加した付勢力が前腕保持具１１を介して歩行者の前腕部を押圧することになる。回動規制ピン２３が回動規制穴３３の下部内壁に当接して、握り柄２０及び前腕保持具１１を擁する可動側が杖柱側に対する後方への回動姿勢を規制している。即ち、回動規制手段が後傾の最終位置で可動側の回動をストップしている。 FIG. 7 is a partial cross-sectional side view in a final state in which the movable side is inclined and rotated backward with respect to the cane column side. The cane in the final state where the backward inclination has advanced is in the state shown in FIG. 4G when actually used, but in this figure, the cane column is illustrated in an upright posture with reference to FIG. .
The movable side holding the handle 20 and the forearm holder 11 is rotated rearward with respect to the cane pillar side, and the length of the push spring 40 is reduced, and the increased biasing force is applied to the pedestrian via the forearm holder 11. The forearm is pressed. The rotation restricting pin 23 is in contact with the lower inner wall of the rotation restricting hole 33, and the movable side holding the grip handle 20 and the forearm holder 11 restricts the backward turning posture with respect to the cane pillar side. That is, the rotation restricting means stops the rotation on the movable side at the final position of backward tilt.

本発明による前腕保持具が傾動可能な連結機構は、腕、脚、腰などに障害や弱点を有する歩行者の歩行介助用に供することができるものである。   The connecting mechanism capable of tilting the forearm holder according to the present invention can be used for walking assistance of pedestrians having obstacles or weak points in their arms, legs, waists, and the like.

は従来型の「T型杖」による歩行過程中の３状態を示す側面図（引用文献図３５）を引用Is a side view (Figure 35) showing three states during the walking process with a conventional "T-shaped cane". は従来型の「ロフストランドクラッチ」による歩行過程中の３状態を示す側面図（引用文献の図３６）を引用Is a side view (Fig. 36 of the cited document) showing the three states during the walking process with the conventional "Lofstrand clutch". 引用文献中の実施例１の杖による一歩の歩行過程中の３状態を示す側面図（引用文献の図２）を引用Cited side view (Fig. 2 of the cited document) showing three states during the one-step walking process with the cane of Example 1 in the cited document. 本発明を適用した実施例の杖による一歩の歩行過程中の３状態を示す側面図The side view which shows three states in the walk process of one step by the cane of the Example to which this invention is applied 回動支承部Ａを備えた連結体を擁する杖柱側と、回動被承部Ａを備えた回動体を擁する可動側とを離間して図示した一部断面展開側面図Partial cross-sectional development side view in which the cane column side holding the connecting body provided with the rotating support part A and the movable side holding the rotating body provided with the rotating supported part A are separated from each other. 可動側が未回転状態、即ち可動側が初期位置の状態での一部断面側面図Partial cross-sectional side view with the movable side not rotated, i.e., with the movable side in the initial position 可動側が杖柱側に対して後方へ傾斜回転した終期状態での一部断面側面図Partial cross-sectional side view in the final state with the movable side tilted and rotated backward with respect to the cane column side

符号の説明Explanation of symbols

１０ 杖柱
１１ 前腕保持具
１２ 回動支点穴
１３ 冠体
１４ 回動ピン支承穴
１５ 連結管
１６ 回動支点ピン
２０ 握り柄
２１ 連結バー
２２ 回動軸
２３ 回動規制ピン
２４ バネ受けピン
３０ 連結体
３１ 回動支承部Ａ
３２ 回動支承穴
３３ 回動規制穴
３５ バネ受け突起
３６ 連結穴
４０ 押しバネ
４４ 受け片Ｇ
４５ 受け片Ｓ
５０ 回動体
５１ 回動被承部Ａ
５２ 回動被承穴
５３ 回動規制ピン穴
５４ バネ受けピン穴
５７ 前方側の嵌合穴
５８ 後方側の嵌合穴 DESCRIPTION OF SYMBOLS 10 Cane pillar 11 Forearm holder 12 Rotation fulcrum hole 13 Crown 14 Rotation pin support hole 15 Connection pipe 16 Rotation fulcrum pin 20 Grasping handle 21 Connection bar 22 Rotation shaft 23 Rotation restriction pin 24 Spring receiving pin 30 Connection Body 31 Rotating bearing A
32 Rotating support hole 33 Rotation restricting hole 35 Spring receiving projection 36 Connecting hole 40 Push spring 44 Receiving piece G
45 Receiving piece S
50 Rotating body 51 Rotating supported part A
52 Rotating bearing hole 53 Rotation regulating pin hole 54 Spring receiving pin hole 57 Fitting hole on the front side 58 Fitting hole on the rear side

Claims (2)

直立した棒状に伸長して形成された杖柱と、杖柱の上方に具備された握り柄と、握り柄の上方に配置されパイプ状もしくは開口部を前方即ち進行方向へ向けたハーフパイプ状に直立方向へ短く伸びて形成された前腕保持具と、前腕保持具が後方へ押圧されると杖柱に対してその軸芯を含む進行方向面内で後退移動可能に連結する連結手段と、押圧が解除されると元位置に復するよう付勢する付勢手段とを備えた杖において、
相互位置不動に連結固定された前記握り柄及び前記前腕保持具の両者が、前記連結手段により前記杖柱に対して後退移動可能に連結され、且つ前記付勢手段により元位置に復する方向へ付勢されていることを特徴とする杖。 A cane pillar formed by extending in an upright bar shape, a grip handle provided above the cane pillar, and a pipe shape or a half pipe shape with the opening directed forward, that is, in the traveling direction, disposed above the handle handle A forearm holder formed to extend short in the upright direction, and a connecting means for connecting the forearm holder so that it can move backward in the advancing direction plane including its axis when the forearm holder is pressed backward, and pressing In a cane provided with a biasing means for biasing to return to the original position when is released,
Both the grip handle and the forearm holder fixedly connected and fixed to each other are connected to the cane column so as to be able to move backward with the connecting means, and return to the original position by the biasing means. A cane characterized by being energized. 前記連結手段が、前記杖柱の上部に取付け固定され上端部に回動支承部Ａを備えた連結体と、下端部に回動被承部Ａを備えた回動体と、前記回動体が前記杖柱に対して後方へ傾斜して回転動作できる範囲を限定する回動規制手段とによって構成され、前記連結体および前記回動体両者の回動部Ａが互いに回転動作自在に支承し合うものであって、前記回動体の前記回動被承部Ａが前記握り柄の被把持領域の中央位置直下近傍に位置するよう構成されたことを特徴とする請求項１記載の杖。   The connecting means is fixedly attached to the upper part of the cane column and has a connecting body having a rotating support part A at its upper end, a rotating body having a rotating supported part A at its lower end, and It is comprised by the rotation control means which restrict | limits the range which can incline back and can rotate with respect to a cane pillar, and the rotation part A of both the said connection body and the said rotation body supports each other rotatably. 2. The cane according to claim 1, wherein the pivot receiving part A of the pivoting body is configured to be positioned in the vicinity immediately below the center position of the gripped area of the grip handle.
JP2008120875A 2008-05-07 2008-05-07 Walking stick with tiltable forearm supporting tool Pending JP2009268655A (en)

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Cited By (13)

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KR101128853B1 (en) * 2010-04-22 2012-03-23 이신희 A crutch
CN102670382A (en) * 2012-04-06 2012-09-19 浙江大学 Walking-assistant intelligent crutch system
JP2013154039A (en) * 2012-01-31 2013-08-15 Tatsuji Hirata Stick
US20150144167A1 (en) * 2012-05-11 2015-05-28 Renato Brignone Adjustable Crutch
JP2016504937A (en) * 2013-01-17 2016-02-18 リウォーク ロボティックス リミテッド Walking device with clutch
US20160101012A1 (en) * 2014-10-10 2016-04-14 The Board Of Trustees Of The University Of Illinois Forearm and wrist support for crutch users
JPWO2014196017A1 (en) * 2013-06-04 2017-02-23 国立大学法人 名古屋工業大学 Walking machine
US9808393B2 (en) 2013-06-27 2017-11-07 Better Walk, Inc. Mobility aids and related methods
CN107485540A (en) * 2017-07-18 2017-12-19 浙江大学城市学院 A kind of intelligence that is used for assists the energy injection system for walking walking stick
US10010474B2 (en) * 2016-05-06 2018-07-03 Yeagle Development Co., Ltd. Forearm crutch
US10537489B1 (en) 2018-08-08 2020-01-21 Hyundai Motor Company Crutch having joint structure
USD883651S1 (en) 2018-01-03 2020-05-12 Better Walk, Inc. Joint stabilization sock
USD989472S1 (en) 2021-04-02 2023-06-20 Better Walk, Inc. Sock

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101128853B1 (en) * 2010-04-22 2012-03-23 이신희 A crutch
JP2013154039A (en) * 2012-01-31 2013-08-15 Tatsuji Hirata Stick
CN102670382A (en) * 2012-04-06 2012-09-19 浙江大学 Walking-assistant intelligent crutch system
US9387144B2 (en) * 2012-05-11 2016-07-12 Renato Brignone Adjustable crutch
US20150144167A1 (en) * 2012-05-11 2015-05-28 Renato Brignone Adjustable Crutch
US10137050B2 (en) 2013-01-17 2018-11-27 Rewalk Robotics Ltd. Gait device with a crutch
JP2016504937A (en) * 2013-01-17 2016-02-18 リウォーク ロボティックス リミテッド Walking device with clutch
JPWO2014196017A1 (en) * 2013-06-04 2017-02-23 国立大学法人 名古屋工業大学 Walking machine
US9808393B2 (en) 2013-06-27 2017-11-07 Better Walk, Inc. Mobility aids and related methods
US20160101012A1 (en) * 2014-10-10 2016-04-14 The Board Of Trustees Of The University Of Illinois Forearm and wrist support for crutch users
US9662263B2 (en) * 2014-10-10 2017-05-30 The Board Of Trustees Of The University Of Illinois Forearm and wrist support for crutch users
US10010474B2 (en) * 2016-05-06 2018-07-03 Yeagle Development Co., Ltd. Forearm crutch
CN107485540A (en) * 2017-07-18 2017-12-19 浙江大学城市学院 A kind of intelligence that is used for assists the energy injection system for walking walking stick
CN107485540B (en) * 2017-07-18 2019-12-13 浙江大学城市学院 Energy injection system for intelligent walking stick
USD883651S1 (en) 2018-01-03 2020-05-12 Better Walk, Inc. Joint stabilization sock
USD905257S1 (en) 2018-01-03 2020-12-15 Better Walk, Inc. Joint stabilization sock
US10537489B1 (en) 2018-08-08 2020-01-21 Hyundai Motor Company Crutch having joint structure
USD989472S1 (en) 2021-04-02 2023-06-20 Better Walk, Inc. Sock

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