【０００１】
【発明の属する技術分野】
本発明は、反発遅延ばね及びそれを靴底に装着する歩行支援用具に関する。
【０００２】
【従来の技術】
ばねの反発力を時間差で解放する引き金装置は公知だが、負荷位置の移動範囲を引き金に利用する反発遅延ばねは知られていない。また、歩行を支援するために、靴底に大きなばね弾性を持たせる（実開昭６１−７７８０４、特開平０３−１９５５０３等）だけでは、衝撃を軽減するにしても歩きにくいうえ、前進力を得難い。例えば、踵部のエアスプリング（実開昭６２−２４７０４）は踵を上げる際に反発力が働き、踝凹部の弾性基板（実開平０２−８６３０４）は着地時から前方への重心移動を円滑化する、にしても、踵の上げ始めから上方に働く反発力の一部を前進に利用できるに過ぎない。
【０００３】
【発明が解決しようとする課題】
本発明は、上の不都合を解決する、反発遅延ばね及びそれを靴底に装着して歩行エネルギーを軽減する、歩行支援用具に関する。
【０００４】
【課題を解決するための手段】
上記目的を達成するために、梃子部付きばね挟みにおいて、ばね挟み先に設ける振り子式の突支が、梃子部への荷重でばね挟みが開くと共に起きて対片先にあてがわれ、梃子部からばね挟み先への荷重移動の過程で畳まれると共にばね挟みが閉じて梃子部に反発力を解放する、反発遅延ばね、及び、靴底当て板が、前部に緩衝体を、後部に当該反発遅延ばねを取り付けて、靴底に装着される靴底ばね装置を提案する。
【０００５】
本発明の反発遅延ばねは、梃子部付きばね挟みを利用するもので、ばね挟みが中間部を支点にして開くと共に突支が起きて対片先にあてがわれ、荷重移動の連続乃至不連続な過程で突支が畳まれてばね挟みが閉じて、反発力が効果的に梃子部に解放される、簡単で堅牢な反発遅延ばねを構成する。コイルばね等の伸縮を支点と突支で制御することも可能だが、重量化と構造の複雑化を伴ない、反発力の漸減的解放に止まり、反発方向を変更することにも不向きである。梃子部付きばね挟みとしては、単純な湾曲折りから多角折りの、棒状から板状までのばね挟み及び梃子部を採用できるが、以下、一般的な三角折り板ばね挟みについて主に説明する。変形として台形、円形の反り形なども選択できるが、例えば、方形平板の耐食ばね鋼製で三角折り両縁に外巻き部と一部内巻き部を有して、外巻き部には梃子板が固定される。内巻き部には振り子式の突支の支軸が取り付けられ、対片の内巻き部は突支止めとなる。
【０００６】
突支を例えばブランコ形で先を多角ロールにすること、及びロール止め位置を可変にすることで、反発力を解放する範囲と方向、つまりタイミングを調節できる。多角ロールの角数が少ないほど、ロール止め位置が対辺先に近いほど、急激な強い反発力を解放して、例えばねじ式乃至嵌合式にタイミングを変更できる。強い反発力を滑らかに解放する範囲と方向を決める要素として、突支とばね挟み中間部の可撓性と共に、突支長さと多角ロール径及び材質等も、ばね挟みの強度、形状及び寸法に対応して選択される。例えば三角折り板ばね挟み及び梃子板においても、支点になる中片の高さや板厚みを含めた寸法等、目的に応じて総合的に決められる。
【０００７】
本発明における靴底ばね装置は、反発遅延ばねの、荷重移動の開始時点ではなく、移動過程で突支が畳まれると共に板ばね挟みが閉じる特性を利用する。振り子式の突支多角ロールが、着地するときに靴底かかと下の梃子板を踏んで開く板ばね挟み下片にあてがわれ、靴底かかと部を上げて荷重移動する時に、土踏まず前方の踏み上がりに押されて畳まれ、歩き方、走り方等に応じて、蹴り出すタイミングでばね反発力を梃子板に解放して蹴り出しを補助し、歩行エネルギーを軽減する。板ばね挟みの梃子板には、歩行性を損なわない短さと軽さが求められる。複数個の板ばね挟みで構成して、体外側ばね挟みを強くすると歩くバランスを取りやすい。
【０００８】
本発明における靴底当て板は、前部に緩衝体を、後部に反発遅延ばねを取り付けて、例えば靴先及び土踏まず部から靴甲部に回した面ファスナ付きバンド等で装着される。靴底前半部に装着して、靴底当て板乃至ばね上片の梃子板をかかと下まで配置することで、靴の屈曲の自由度を確保して、荷重をばねに有効に伝達できる。当該緩衝体は、ばねと同等高さで凹凸の接地面を有する伸縮弾性体とすることにより、つまづきを防止して、ばね装置を保護し、付属フェンダー等は、汚れ防止に役立つ。当て板に靴縁への係止フックを設けると靴に堅持され、弾性の装着バンドも靴からの脱落を防止する。
【０００９】
本発明の反発遅延ばね及び靴底ばね装置の形状とサイズ及び材質は、上記の特徴を満たして目的に応じて選択でき、大小・強弱クラス別けと、耐磨耗性の軽量材料の採用が望ましい。例えば、三角折り板ばね挟み及び梃子板には、ステンレスばね鋼を、靴底当て板及び伸縮可撓性弾性体には、ＰＥ，ＰＰ等ポリオレフィン類のプラスチック製の、同一材料製乃至複合材料製とする、或いは伸縮性プラスチック材料例えば弾性ゴム製ゴム等の可撓性プラスチック製とすることができる。
【００１０】
【発明の実施の形態】
発明の実施の形態について図面を参照して説明する。
図１において、三角折り板ばね挟み（１）の先内巻き部に下げる突支振り子（２）の先には、八角ロール（３）を有する。突支ロール止め（４）を有する下片の梃子板（５）に幅広の梃子かかと部（６）を有する。靴底当て板（７）は前部に泥除け付き緩衝体（８）を有し、後部梃子板に板ばね挟み（１）の上片をばね挟み固定ねじ（９）で取り付けた靴底ばね装置を、固定バンド（１０）で靴の甲部に装着する。下片梃子板から着地して、靴かかとが上片梃子板を踏むと、中片を支点に板ばね挟みが開き、振り子式の突支ロールが起きてばね挟み下片先にあてがわれ、靴底かかと部を上げて荷重移動して、土踏まず前方の指母部に押される過程で振り子ロールが畳まれ、蹴り出すタイミングで反発力を上片梃子板に解放して蹴り出しを補助する。
【００１１】
【発明の効果】
本発明は、上述のとおり構成されているので、ばね力を時間差をつけて解放する反発遅延ばねを提供する。利用分野として、静的な複数個を並置する打ち出し玩具、運動具等のほかに、動的な歩行支援用具がある。すなわち、反発遅延ばねを利用する靴底ばね装置は、軽量かつ堅牢で蹴り出し力を補い、着地時の衝撃を軽減して前進を支援する、つまり歩行エネルギーを軽減する。安価に製造でき、靴の保全、背を高く見せる、雨靴を代用するなど、副次効果を伴なって簡便に使用できる。
【図面の簡単な説明】
【図１】本発明の反発遅延ばね及び靴底ばね装置の、三角折り板ばね挟みを用いる実施方法例を示す。Ａは反発遅延ばね、Ｂは靴底当て板の概略図、Ａ＋Ｂは反発遅延ばねを当て板に取り付けた靴底ばね装置の断面図を、Ｃ−１は装着した靴の着地前段階、Ｃ−２は着地段階、Ｃ−３は蹴り出し前段階、Ｃ−４は蹴り出し段階の概略図を示す。
【符号の説明】
１ 三角折り板ばね挟み
２ 突支振り子
３ 突支先八角ロール
４ 突支ロール止め
５ 梃子板
６ 梃子かかと部
７ 当て板
８ ばね挟み固定ねじ
９ 緩衝体
１０ 固定バンド[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a rebound delay spring and a walking assist device for mounting the spring on a shoe sole.
[0002]
[Prior art]
A trigger device that releases the repulsive force of the spring with a time difference is known, but a repulsion delay spring that uses the moving range of the load position as a trigger is not known. In addition, if the sole of the shoe is provided with a large spring elasticity to support walking (Japanese Utility Model Laid-Open No. 61-77804, JP-A-03-195503, etc.), it is difficult to walk even if the impact is reduced, and the forward force is reduced. It is hard to get. For example, the air spring at the heel (actual opening 62-24704) exerts a repulsive force when raising the heel, and the elastic substrate (actual opening flat 02-86304) at the recess of the ankle smoothly moves the center of gravity forward from the time of landing. Even so, only part of the repulsive force acting upward from the beginning of raising the heel can be used for forward movement.
[0003]
[Problems to be solved by the invention]
The present invention relates to a rebound delay spring that solves the above disadvantages, and a walking support tool that is mounted on a shoe sole to reduce walking energy.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, in a spring pinch with a lever portion, a pendulum type projection provided at the spring pinch point is applied to the opposite end while the spring pinch is opened by the load on the lever portion, and is applied to the opposite end. In the process of moving the load from the spring to the spring clamp, the spring clamp closes and the spring clamp closes to release the repulsive force to the lever part, and a rebound delay spring and a shoe sole backing plate have a buffer at the front and a rear at the rear. The present invention proposes a shoe sole spring device to be attached to a shoe sole by attaching the repulsion delay spring.
[0005]
The rebound delay spring of the present invention utilizes a spring pinch with a lever portion. The spring pinch opens with the middle portion as a fulcrum, and a protrusion occurs to be applied to the opposite end, so that the load movement is continuous or discontinuous. During this process, the support is folded and the spring pinch is closed, so that the repulsive force is effectively released to the lever portion, thereby constituting a simple and robust repulsive delay spring. Although the expansion and contraction of the coil spring and the like can be controlled by a fulcrum and a fulcrum, it is not suitable for changing the direction of rebound only by gradually releasing the repulsive force with the increase in weight and complexity of the structure. As the spring pinch with the lever portion, a spring pinch and a lever portion from a simple curved folding to a polygonal folding, from a bar shape to a plate shape can be adopted. Hereinafter, a general triangular folded plate spring clip will be mainly described. As a deformation, trapezoidal shape, circular warp shape, etc. can also be selected, but for example, a rectangular flat plate made of corrosion-resistant spring steel has an outer winding part and a partially inner winding part on both sides of the triangular fold, and a lever plate on the outer winding part Fixed. A support shaft of a pendulum-type projection is attached to the inner winding portion, and the inner winding portion of the pair piece serves as a stopper.
[0006]
The range and direction in which the repulsive force is released, that is, the timing, can be adjusted by making the protruding support a polygonal roll with a swing shape, for example, and making the roll stopping position variable. As the number of angles of the polygonal roll is smaller and the roll stop position is closer to the opposite side, the sharp repulsive force is released, and the timing can be changed to, for example, a screw type or a fitting type. The factors that determine the range and direction in which the strong repulsive force is released smoothly, as well as the flexibility of the middle part of the spring support and the spring support, as well as the support length, polygon roll diameter and material, etc., determine the strength, shape and dimensions of the spring support. Selected accordingly. For example, also in the case of the triangular folded leaf spring and the lever plate, the height including the height of the middle piece serving as a fulcrum and the dimensions including the plate thickness are comprehensively determined according to the purpose.
[0007]
The sole spring device of the present invention utilizes the characteristic of the rebound delay spring that the projecting support is folded and the leaf spring pinch closes during the movement process, not at the start of the load movement. The pendulum-type support roll is applied to the lower part of the leaf spring clamp that opens by stepping on the lever plate under the heel of the sole when landing, and when the load is transferred by raising the heel of the sole, the arch is stepped forward. According to the way of walking, running, etc., the spring rebound force is released to the lever plate at the timing of kicking out, assisting kicking out, and reducing walking energy. The lever plate sandwiched between the leaf springs is required to be short and light without impairing walking ability. When a plurality of leaf spring clamps are used, and the outer body spring clamps are strengthened, it is easy to balance walking.
[0008]
The shoe sole backing plate of the present invention is attached with a cushion at the front and a rebound delay spring at the rear, for example, with a band with a hook-and-loop fastener turned from the shoe tip and the arch to the shoe upper. By mounting the shoe sole on the front half and arranging the sole plate or the lever plate of the sprung piece to the bottom of the heel, the degree of freedom of bending of the shoe is ensured and the load can be effectively transmitted to the spring. The shock absorber is a stretchable elastic body having the same height as the spring and having an uneven ground surface, thereby preventing stumbling and protecting the spring device, and the attached fender and the like help prevent dirt. When the hooking plate is provided with a locking hook to the shoe rim, it is firmly held on the shoe, and the elastic wearing band also prevents the shoe from falling off.
[0009]
The shape, size, and material of the rebound delay spring and the sole spring device of the present invention can be selected according to the purpose while satisfying the above characteristics, and it is desirable to adopt a lightweight material that is classified into large and small, strong and weak, and abrasion resistant. . For example, stainless spring steel is used for the triangular folded leaf spring and the lever plate, and the same material or a composite material is used for the shoe sole backing plate and the elastic flexible body made of a plastic such as polyolefin such as PE and PP. Or a flexible plastic material such as an elastic plastic material such as rubber made of elastic rubber.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiments of the present invention will be described with reference to the drawings.
In FIG. 1, an octagonal roll (3) is provided at the tip of a projecting pendulum (2) which is lowered to an inner winding portion of a triangular folded leaf spring clip (1). A wide lever heel (6) is provided in a lower lever plate (5) having a fulcrum roll stop (4). The sole plate (7) has a buffer body (8) with mudguard at the front, and the upper piece of the leaf spring clamp (1) is attached to the rear lever plate with the spring clamp screw (9). Is attached to the upper of the shoe with a fixing band (10). When landing from the lower lever plate and the shoe heel steps on the upper lever plate, the leaf spring pinch opens with the middle piece as a fulcrum, a pendulum-type projecting roll occurs, and the spring pinch is applied to the lower tip. The heel part of the shoe is raised and the load is moved, and the pendulum roll is folded in the process of being pushed by the finger base in front of the arch, releasing the repulsive force to the upper lever plate at the timing of kicking to assist kicking.
[0011]
【The invention's effect】
The present invention, as configured above, provides a rebound delay spring that releases the spring force with a time lag. As an application field, there is a dynamic walking support tool in addition to a launch toy, an exercise tool, and the like in which a plurality of static devices are juxtaposed. That is, the shoe sole spring device using the repulsion delay spring is lightweight and robust, supplements the kicking force, reduces the impact at the time of landing, and assists the vehicle in moving forward, that is, reduces walking energy. It can be manufactured at low cost and can be used easily with secondary effects, such as preserving shoes, making them look tall, or substituting rain boots.
[Brief description of the drawings]
FIG. 1 shows an example of an embodiment of a rebound delay spring and a shoe sole spring device of the present invention using a triangular folded leaf spring. A is a rebound delay spring, B is a schematic diagram of a sole plate, A + B is a cross-sectional view of a sole spring device in which a rebound delay spring is attached to a plate, C-1 is a stage before landing of the mounted shoe, C- 2 is a schematic diagram of a landing stage, C-3 is a schematic diagram of a pre-kick stage, and C-4 is a schematic diagram of a kick stage.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Triangular folded leaf spring clamp 2 Protrusion pendulum 3 Protrusion point octagonal roll 4 Protrusion roll stop 5 Lever plate 6 Lever heel part 7 Backing plate 8 Spring clamp fixing screw 9 Buffer 10 Fixing band
