JP2022161771A - Vertical parallel motion type footrest - Google Patents

Abstract

To provide a footrest capable of adjusting and setting height of a sole when both knees tend to rise slightly forward, like a sitting time on a sofa.SOLUTION: A left screw nut and a right screw nut are integrally molded on a center part, and a left screw machine screw and a box nut are provided on the furthermore left side than a center part of one machine screw, and a right screw machine screw and a C type shaft stop ring are provided on the right side, and further square cutting and a cross groove are applied to a right edge, to thereby enable vertical parallel motion.SELECTED DRAWING: Figure 1

Description

According to ergonomics, the recommended height of the chair for the average Japanese height (165 cm for men and 155.5 cm for women) is 38.5 cm, and the desk height is 70 cm. The seat height (42-45cm) of chairs made of steel pipes, wood, plastic, etc. is too high. When I looked at it, most of them were seated with only their toes on the floor, or because they sat on the front edge of the seat with their knees hanging down, the rear thigh muscles were pressed and the blood circulation was poor, causing pain and numbness. It is related to a vertical parallel motion platform to solve this problem.

The seat height (42 to 45 cm) of modern general-purpose fixed-legged chairs is too high for people of average height in Japan. I had no choice but to endure the pain and continue.

Outline of the invention

Problems to be Solved by the Invention

This had the following drawbacks.
Most of the people who use many of today's commercially available general-purpose steel pipe, wooden, or plastic chairs with seat heights (42 to 45 cm) are installed temporarily in libraries, offices, school auditoriums, public halls, etc. The present invention was made to eliminate the above-mentioned drawbacks and adverse effects.

Means to solve problems

ジ部▲８▼（巾≒１５ｃｍ，厚さ≒１ｍｍ）×６ヶをナツト▲２▼・▲３▼を一体成型：，材質はプラスチツク（別へば，優れたヒンジ特性のポリプロピレン）にネジ切り加工し，次にビス▲６▼はプラスチック（別へば優れた弾力性と衝撃性のあるアイオノマー）で構成，又は本体をアルミニュム（ＡＬ）板×６枚の接合部の各に２ヶ×６枚≒１２ヶの蝶番をリベツトかしめし組み立て［図１］のような機構に完成させ，座面の硬く座り心地の悪く硬いもの

▲１７▼（縦・横≒４０ｃｍ・厚さ≒３～５ｃｍ）を載せ，椅子の背当て部に肩掛け紐▲１３▼で結びつけ，両膝前部が少し上がり気味状態での足裏と床面との隙間に合わせ本器の足載台▲１▼_Ａの高さをハンドル▲５▼の右回転（▲１６▼_１→▲１６▼_２→▲１６▼_３）して上昇セツテングすればよい。 _Footrest that moves in parallel up and down ▲１▼ _A ▲１▼

Ji part ▲8▼ (width ≒ 15 cm, thickness ≒ 1 mm) × 6 nuts ▲ 2 ▼ and ▲ 3 Integrally molded: The material is plastic (otherwise, polypropylene with excellent hinge characteristics) threaded Next, screws (6) are made of plastic (separately, ionomer with excellent elasticity and impact resistance), or the main body is made of aluminum (AL) plate x 6 pieces. Approximately 12 hinges are assembled by riveting and crimping to complete a mechanism like [Fig. 1].

▲１７▼ (length and width ≒ 40 cm, thickness ≒ 3 to 5 cm) is placed, tied to the back of the chair with a shoulder strap ▲ 13, and the soles of the feet and the floor are in a state where the front of both knees are slightly raised. Adjust the height of the footrest (1) _A of this unit to the gap between and by rotating the handle (5) to the right ((16) ₁ → (16) ₂ → (16) ₃ ).

Effect of the invention

[0004] If you sit on a cushion, seat, or mat with the front part of both knees slightly raised, you can feel the comfort and sensation of sitting on a sofa, eliminating the pain and numbness in both legs, and studying, office work, and working for a long time. When eating at home, even short adults and children can adjust the height of this device to the optimum, so that they can relax and enjoy themselves.

Best Mode for Carrying Out the Invention

き長六角形にして，その中央部にビス▲６▼をナツト▲２▼と▲３▼の中心部に合せ右回転すればナツト▲２▼・▲３▼に噛み合わせられ，中央部に引き寄せられた所で左側に左ネジの袋ナツト▲７▼を取りつけ，右側にはＣ字軸止めリング▲４▼を溝に嵌め込むとビス▲６の脱落防止となり組み立ては終了完成となる。
これを使用するときは，椅子に腰掛けた時両膝前部が少し上がり気味状態にした時の足裏と床面のギヤツプに本器が納まるような高さ（３～３０ｃｍ）にハンドル▲５▼を右又は左回転により上昇又下降させて設置・装着する。次に学校の体育館や地方自治体ホール等で一堂に多数の折り畳み型スチールパイプ等の椅子を仮設使用するときは設置総数の２０～３０％の本器用一括収納ボックスに保管しておき必要とする者は各自取り出しセツチング・着席すればよいが，中には手間取る者には係員が電気ドリルのチヤツクに本器四角ビス▲６▼に合うソケット・レンチ・アダプターを差し込み，足載台▲１▼_Ａを使用者の最適高さにセツチング着席させた後はゆったりした気分で本題の演説，スピーチ・コンテスト，音楽会，討論等の質疑応答に集中するような状態にすれはよい。又家庭で食事中子供が足をブラブラしてようなときは，親が本器の高さを最適状態にセツチングし，終了後は本器を椅子の下又は食卓中央部下床に滑り込ませ，転倒防止の為必ず床に立ち上るようにすればよい。又は椅子の座面裏にゴムベルト両端をリベット等でかしめてその合間に本器を挟み込ばスツキリする。最後に同一場所の図書館等に頻繁に通うときは右ネジナツト▲３▼の位置が塗色帯の何色だったかを覚えておき，着席時その記憶色にすばやくセツテングすると便利となる。

In the center of the hexagon, set a screw (6) in the center of the nuts (2) and (3) and turn it clockwise so that it engages with the nuts (2) and (3) and pulls it toward the center. At this point, the cap nut (7) of the left-hand screw is attached to the left side, and the C-shaped shaft retaining ring (4) is fitted into the groove on the right side to prevent the screw (6) from falling off, and the assembly is completed.
When using this, set the handle to a height (3 to 30 cm) so that the gap between the soles of your feet and the floor when you sit on a chair and the front of your knees are slightly raised. Rotate ▼ clockwise or counterclockwise to raise or lower it and install it. Next, when a large number of chairs such as folding steel pipes are temporarily used in a school gymnasium, local government hall, etc., those who need to store 20 to 30% of the total number of chairs in a collective storage box for this device. However, for those who have trouble, the staff will insert a socket, wrench, and adapter that fits the square screw (6) of this device into the chuck of the electric drill and set the footrest (1) _A. After the user has been seated at the optimal height, it should be in a state where he/she can relax and concentrate on question-and-answer sessions such as speeches, speech contests, concerts, and debates. Also, when a child dangles his or her feet during a meal at home, the parent should set the device to the optimum height, and after finishing the meal, slide the device under a chair or under the center of the dining table to prevent it from tipping over. To prevent this, always stand up on the floor. Alternatively, if you crimp the ends of the rubber belt to the back of the seat of the chair with rivets, etc., and insert the device between them, it will be fine. Finally, when you frequently go to the same library, etc., it is convenient to memorize what color the right screw nut (3) is in the painted color band, and quickly set it to that memory color when you are seated.

1 is a front view of the present invention; FIG. 1 is a plan view of the present invention; FIG. It is an AA sectional view. FIG. 2 is a plan view of the cushion sheet mat.

▲２▼ 左ネジナット
▲３▼ 右ネジナツト
▲４▼ Ｃ字軸止めリング
▲５▼ 着脱ハンドル

▲７▼ 袋ナット
▲８▼ ヒンジ×６ヶ

▲１３▼ 肩掛け紐
▲１４▼ 把っ手
▲１５▼ ファスナー
▲１６▼ ポケツト
▲１７▼ クッシヨンシート・マツト
▲１８▼ 床
▲１９▼ 靴（仮想）

▲２▼ Left screw nut ▲３▼ Right screw nut ▲４▼ C-shaped shaft stop ring ▲５▼ Detachable handle

▲７▼ Cap nut ▲８▼ Hinge x 6 pieces

▲１３▼ Shoulder strap ▲１４▼ Handle ▲１５▼ Zipper ▲１６▼ Pocket ▲１７▼ Cushion sheet/mat ▲１８▼ Floor ▲１９▼ Shoes (virtual)

Claims (3)

Vertical parallel motion footrest ▲１▼ _A ▲１▼ _B

A screw nut (2) and a right screw nut (3) are provided, a left screw and a cap nut (7) are provided on the left side of the center of one screw (6), and a right screw and a C-shaped shaft stop ring (4) are provided on the right side. , Furthermore, the right end is square cut, and the shaft end is carved with a cross groove.

・Footrest (1) _A vertical parallel movement type footrest with a mechanism that enables height setting by vertical parallel movement of A by turning right.

The instrument and the handle (5) are stored in the pocket (16) with the zipper (15) of the mat (17) and can be carried by adjusting the knot length of the handle (14) or the shoulder strap (13). . When setting up many chairs in one place and it is necessary to set the height quickly, attach a square box wrench adapter suitable for the screw (6) of this instrument to the electric drill chuck and turn it to the desired height by turning it to the left or right. , which can be set to the height of

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