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JP2004042870A - Shock absorbing wheel - Google Patents

Shock absorbing wheel Download PDF

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Publication number
JP2004042870A
JP2004042870A JP2002236125A JP2002236125A JP2004042870A JP 2004042870 A JP2004042870 A JP 2004042870A JP 2002236125 A JP2002236125 A JP 2002236125A JP 2002236125 A JP2002236125 A JP 2002236125A JP 2004042870 A JP2004042870 A JP 2004042870A
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JP
Japan
Prior art keywords
wheel
axle
load
shock
spring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2002236125A
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Japanese (ja)
Inventor
Keizo Nakayama
中山 慶三
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Individual
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Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP2002236125A priority Critical patent/JP2004042870A/en
Publication of JP2004042870A publication Critical patent/JP2004042870A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a shock absorbing wheel offering adjustable wheel construction preventing the generation of turn starting force and rolling of a vehicle body and having a shock absorption function. <P>SOLUTION: A laminated plate spring utilizing resilience of deflecting warp and a compression coil spring utilizing the resilience of springing compression are laid between an axle located at the middle of body side plates and a body upper face plate to make springing strength adjustable. To the side plates, a supporting plate is fastened which supports the axle by providing oblong holes in the ends of the side plates, equivalent to the diameter of the axle, so that the side plates are lowered a distance with the warp of the springs by a load. A shock absorbing device in this construction adaptable for an adjustable wheel or a fixed wheel is applicable to each of small to large wheels. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
自在車輪及び固定車輪の緩衝装置に関するものである。
【0002】
【従来の技術】
本体を支点位にしたアームの先端を作用点位にして車輪を取付け、アームの力点位に圧縮コイルバネを使用、又は緩衝器の伸縮を利用して車輪を間接作動さす装置にした緩衝車輪。
【0003】
【発明が解決しょうとする課題】
自在及び固定緩衝車輪として重ネ板バネ.圧縮コイルバネの特性を利用し、ともにバネ強度の調節可能な緩衝装置にして、従来の自在車輪構造は進行切替え時に進行方向に本体が左右いづれかに旋回回転して車輪が追従して進行方向に対し直角状態で一旦停止し、その後の発進に通常発進の3〜5倍の力量を要する旋回始動力と、同時に車輪が旋回回転する距離車体が横振れして狭い通路等で対物とのトラブルが発生するため、旋回始動力と車体の横振れを解消する構成とする自在車輪にして固定車輪を含む緩衝機能を有する緩衝車輪。
【発明を解決するための手段】
【0004】
重ネ板バネ緩衝は車軸に固定する親バネ両先端部で本体前後枠を支持して本体に荷重を負荷さす構成とし、圧縮コイルバネ緩衝は本体上面板と車軸間に案内ボルトを設け圧縮コイルバネ及び調節ナットを介在させて本体に荷重を負荷さす構成とする、ともに負荷により本体側板が下降するも車軸位置が常に側板に対応して保持嵌合するに取付ける、自在及び固定車輪の緩衝構成とする。
【0005】
進行方向切替時に車輪取付け本体の旋回回転を解決するには、進行切替え時に車輪が進行方向に平行して逆回転することにより、旋回始動力も車体の横振れも解消できる、故に本体中心に車軸位置を設け進行切替え時に主軸が本体上面板の中央に設ける左右偏芯距離の主軸径のスライド溝を、主軸が所定間を取付部及び旋回部と同時にスライドする構成にした自在車輪とする。
【発明の実施の形態】
【0006】
図1〜図3で示す重ネ板バネ緩衝車輪について説明する。
【0007】
図示3、車輪2の両側に重ネ板バネ3を車軸4にUボルト5で固定する、図示1、本体1前後枠板にバネ巾の切り込み6を設け親バネ7の先端受高を調整するバネ受8を締結ける。
【0008】
図示1〜2、負荷により親バネ7の先端たわみA.A’間を同時に本体1もA.A’間を下降する距離をFで示し、Fと車軸4径のL距離と組み立てを想定して本体1側面板の先端までを車軸4径巾L’の長穴9を設け、車軸4を保持さすために上部を車軸4径巾で切り抜いた保持板10を本体1側板先端位置に締結する。
【0009】
図示1、親バネ7先端がA位置で負荷をバネ受8で調整し、負荷を最大荷重の50%としてのバネ状態にして組み立て、図示2で親バネ7の先端が負荷により水平状態のA’位置では最大荷重の2乗になるようバネに強度のある材質か複数の板バネで対応する、負荷重の衝撃における本体1の下降範囲は図2のF間である。
【0010】
図示2、凹凸段差等で強度な衝撃を与えたり、最大荷重の2乗以上を親バネ7の先端に負荷させると、車軸4が長穴9の上部で側板に接する位置にあるので緩衝の要をなさないで親バネ7は破損する。
【0011】
図4〜図6で示す圧縮コイルバネ緩衝車輪について説明する、軽荷用には単巻コイルで重荷用には複巻コイルで対応する構成とする。
【0012】
図示6、本体1両側板と車輪2に貫通する車軸4の両先端部の位置に設ける貫通穴11に案内ネジボルト12が摺動するように差し込み、圧縮コイルバネ13及びたわみ調整用のナット14を介在させ案内ネジボルト12の上部先端を本体1の上面板17に固着する。
【0013】
図示5、負荷することにより本体側板がF間下降して、車軸4径とF間の距離Lと組立てを想定して本体側面板の先端までの車軸4径巾L’の長穴9を設け、車軸4を保持さすために上部を車軸4径巾に切り抜いた保持板10を本体1の側板先端位置に締結する。
【0014】
図示4、組立て時には案内ネジ12に介在した圧縮コイルバネ13に50%の負荷状態にたわみを圧縮状態にナット14で調整しイロ間の長さとする。
【0015】
図示5、最大荷重に2乗する200%の衝撃負荷さすと、圧縮コイルバネ13はたわみのないハニ間の長さに圧縮され、以上の負荷重には緩衝の要をなさない、負荷時本体1が下降する範囲はイロ間とハニ間の差である。
【0016】
図7〜図9を参照して主軸がスライドする重ネ板バネ及び圧縮コイルバネ装置の緩衝自在車輪について説明する。
【0017】
図示7〜9、取付部15に固定する主軸20が本体上面板17の中央に左右偏芯Eの所定間を進行切替え時に、取付部15及び旋回部16と同時に主軸20がスライドするための主軸20径巾のスライド溝19を設ける。
【0018】
旋回部16には主軸20に誘導され本体上面板17を取付部15が荷重を負荷して面接して旋回及びスライドと複作動するので、作動性のよいスラスト用に保持された硬球又は油含性の硬質樹脂板を使用する。
【0019】
主軸20にスライド溝19の摩擦抵抗を防止するために、汎用のニードルケージ21を介在させる。
【0020】
図示10〜11、進行切替時の作動実施についてX1方向よりX2方向に車輪2を逆回転さすに、進行方向に平行して主軸20を左右偏芯Eとの所定間をスライドさすことにより本体1は主軸20に追従し車輪2はX2方向に回転進行を開始する。
【0021】
主軸20が所定間のスライド溝19をスライド後は左右X2方向の蛇行進行も車輪2は主軸20よりの偏芯位置を保ち回転する。
【発明の効果】
【0022】
従来の自在車輪、固定車輪にも対応できる緩衝装置であるが、主軸がスライドする自在車輪を緩衝装置として組み合わすことにより、進行切替え時に旋回始動力・車体の横振れも解消した車体構成となり、緩衝装置は板バネのねじれ及び圧縮コイルバネに横座屈を与えない緩衝構成であるので衝撃・騒音を防止して精密重機器の搬送用の大型重荷車輪に適す。
【0023】
軽荷用の精密機器・病床用のベット・介護用の車椅子前輪等の振動防止車輪には、従来のパイプ及びボルト取付け用の自在車輪に圧縮コイルバネ緩衝装置を備えることにより快適な搬送を可能にした小型車輪に適す。
【図面の簡単な説明】
【図1】重ネ板バネ緩衝車輪の正面図
【図2】”    ”  負荷時正面図
【図3】”    ”  側面図
【図4】圧縮コイルバネ緩衝車輪の正面図
【図5】”     ”   負荷時正面図
【図6】”     ”   側面図
【図7】主軸がスライドする自在車輪の正面図
【図8】”   ”    ”   平面図
【図9】”   ”    ”   側面図
【図10】”   ”    ”   作動正面図
【図11】”   ”    ”   ” 平面図
【図12】パイプ取付自在車輪の正面図
【図13】パイプ取付自在車輪の平面図
【図14】”    ”   左側面図
【符号の説明】
A.A’親ハネ先端位置  E.偏芯  X1.X2 進行方向
イ,ロ,ハ,ニ, 圧縮コイルバネ長の上下位置
1 本体        13 圧縮コイルバネ
2 車輪        14 調整用ナット
3 重ネ板バネ     15 取付部
4 車軸        16 旋回部
5 Uボルト      17 本体上面板
6 切り込み      18 偏芯
7 親バネ       19 スライド溝
8 バネ受       20 主軸
9 長穴        21 ニードルゲージ
10 保持板       22 取付丸材
11 貫通穴
12 案内ネジボルト
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a shock absorber for a free wheel and a fixed wheel.
[0002]
[Prior art]
A shock-absorbing wheel in which the wheel is mounted with the tip of the arm whose main body is the fulcrum as the point of action, and a compression coil spring is used at the force of the arm, or the wheel is indirectly operated by utilizing the expansion and contraction of the shock absorber.
[0003]
[Problems to be solved by the invention]
Heavy leaf springs as free and fixed shock absorbing wheels. Utilizing the characteristics of compression coil springs, both are shock absorbers with adjustable spring strength, and the conventional free wheel structure is such that the main body turns left or right in the traveling direction at the time of traveling switching and the wheels follow the traveling direction The vehicle temporarily stops at a right angle, then requires 3 to 5 times the amount of normal starting force to start, and at the same time, the wheel turns and rotates. Therefore, a shock absorbing wheel having a shock absorbing function including a fixed wheel as a universal wheel configured to eliminate the turning starting force and the lateral deflection of the vehicle body.
[Means for Solving the Invention]
[0004]
The heavy spring spring buffer is configured to support the main body front and rear frames at both ends of the main spring fixed to the axle and to apply a load to the main body, and the compression coil spring buffer is provided with a guide bolt between the main body upper plate and the axle, the compression coil spring and A structure in which a load is applied to the main body with an adjusting nut interposed, and both the main body side plate is lowered due to the load but the axle position is always fixed to fit the side plate so that it is mounted to fit. .
[0005]
In order to resolve the turning rotation of the wheel-mounted body when switching the traveling direction, the wheels can be rotated in reverse in parallel with the traveling direction at the time of switching the traveling, so that both the turning starting force and the lateral deflection of the vehicle body can be eliminated, so the axle position is centered on the main body And a slide groove having a main shaft diameter of the right and left eccentric distance provided at the center of the main body upper plate at the time of switching the progress is a universal wheel having a configuration in which the main shaft slides simultaneously with the mounting portion and the turning portion for a predetermined interval.
BEST MODE FOR CARRYING OUT THE INVENTION
[0006]
The heavy-spring spring buffer wheel shown in FIGS. 1 to 3 will be described.
[0007]
As shown in FIG. 3, a heavy leaf spring 3 is fixed to the axle 4 on both sides of the wheel 2 with U-bolts 5, and as shown in FIG. The spring receiver 8 can be fastened.
[0008]
1 and 2, the tip deflection of the parent spring 7 due to the load. The main body 1 is also A. The distance descending between A ′ is indicated by F, and a long hole 9 of the axle 4 diameter and width L ′ is provided up to the tip of the side plate of the main body 1 to assemble F and the L distance of the axle 4 diameter. A holding plate 10 having an upper portion cut out by a width of four axles to be held is fastened to a tip end position of the main body 1 side plate.
[0009]
1, the load is adjusted by the spring receiver 8 when the tip of the parent spring 7 is at the position A, and the load is adjusted to 50% of the maximum load in a spring state. In the 'position, the lowering range of the main body 1 in the impact of the load is between F in FIG. 2 corresponding to a material having strength of the spring or a plurality of leaf springs so as to be the square of the maximum load.
[0010]
As shown in FIG. 2, when a strong impact is applied due to uneven steps or the maximum load of 2 or more is applied to the tip of the parent spring 7, the axle 4 is in a position in contact with the side plate at the upper part of the elongated hole 9 so that buffering is required. Without doing so, the parent spring 7 is damaged.
[0011]
A compression coil spring buffer wheel shown in FIGS. 4 to 6 will be described. A single coil is used for light loads and a multiple coil is used for heavy loads.
[0012]
As shown in FIG. 6, guide screw bolts 12 are slidably inserted into through holes 11 provided at both ends of the axle 4 penetrating the body 2 on both side plates and the wheel 2, and a compression coil spring 13 and a deflection adjusting nut 14 are interposed. Then, the upper end of the guide screw bolt 12 is fixed to the upper surface plate 17 of the main body 1.
[0013]
As shown in FIG. 5, the main body side plate is lowered between F by applying a load, and a long hole 9 of the axle 4 diameter and width L 'up to the tip of the main body side plate is provided in consideration of the distance L between the axle 4 and the F and assembly. Then, a holding plate 10 having an upper portion cut out to a width of the axle 4 in order to hold the axle 4 is fastened to the end of the side plate of the main body 1.
[0014]
As shown in FIG. 4, when assembling, the bending of the compression coil spring 13 interposed between the guide screws 12 under a load of 50% is adjusted by the nut 14 in the compressed state to obtain the length between the stalks.
[0015]
As shown in FIG. 5, when a shock load of 200%, which is the square of the maximum load, is applied, the compression coil spring 13 is compressed to the length between the uncurled honeycombs, and the above-mentioned load does not need to be cushioned. The range in which falls is the difference between Iro and Hani.
[0016]
With reference to FIG. 7 to FIG. 9, a description will be given of a heavy screw leaf spring in which a main shaft slides and a bufferable wheel of a compression coil spring device.
[0017]
7 to 9, the main shaft for the main shaft 20 to slide at the same time as the mounting portion 15 and the turning portion 16 when the main shaft 20 fixed to the mounting portion 15 is switched to the center of the main body upper surface plate 17 for a predetermined interval of right and left eccentricity E. A slide groove 19 having a diameter of 20 is provided.
[0018]
The turning portion 16 is guided by the main shaft 20 and the main body upper plate 17 comes into contact with the mounting portion 15 by applying a load to the turning and sliding operations. Use a rigid hard resin plate.
[0019]
A general-purpose needle cage 21 is interposed in the main shaft 20 to prevent frictional resistance of the slide groove 19.
[0020]
As shown in FIGS. 10 to 11, when the traveling is switched, the main body 1 is slid in a predetermined distance from the left and right eccentricities E in parallel with the traveling direction in order to rotate the wheel 2 in the X2 direction from the X1 direction. Follows the main shaft 20, and the wheel 2 starts rotating in the X2 direction.
[0021]
After the main shaft 20 slides in the slide groove 19 for a predetermined time, the wheel 2 rotates while maintaining the eccentric position with respect to the main shaft 20 in the meandering progress in the left-right X2 direction.
【The invention's effect】
[0022]
Although it is a shock absorber that can respond to conventional free wheels and fixed wheels, by combining a free wheel whose main shaft slides as a shock absorber, the vehicle configuration has also eliminated the turning start force and the lateral vibration of the vehicle body when switching between traveling, The shock absorber has a shock-absorbing structure that does not impart torsion of the leaf spring and lateral buckling of the compression coil spring, so that it is suitable for a large heavy load wheel for transporting precision heavy equipment by preventing impact and noise.
[0023]
For the vibration-prevention wheels such as precision equipment for light load, bed for bed, wheelchair front wheel for nursing care, etc., comfortable transportation is possible by equipping conventional pipe and bolt free wheel with compression coil spring shock absorber. Suitable for small wheels.
[Brief description of the drawings]
FIG. 1 is a front view of a heavy-spring spring buffer wheel. FIG. 2 is a front view of a “” load. FIG. 3 is a side view. FIG. 4 is a front view of a compression coil spring shock-absorbing wheel. Front view [Fig. 6] "" Side view [Fig. 7] Front view of the free wheel on which the main shaft slides [Fig. 8] """Plan view [Fig. 9]""""Side view [Fig. 10]""" Operating front Figure [Figure 11] """" Plan view [Figure 12] Front view of a pipe mountable wheel [Figure 13] Plane view of a pipe mountable wheel [Figure 14] "" Left side view [Description of reference numerals]
A. A 'Parent snap tip position Eccentric X1. X2 travel direction a, b, c, d, vertical position of compression coil spring length 1 main body 13 compression coil spring 2 wheel 14 adjusting nut 3 double screw leaf spring 15 mounting part 4 axle 16 turning part 5 U bolt 17 main body upper plate 6 cut Reference Signs List 18 Eccentric 7 Parent spring 19 Slide groove 8 Spring receiver 20 Main shaft 9 Long hole 21 Needle gauge 10 Holding plate 22 Mounting round 11 Through hole 12 Guide screw bolt

Claims (3)

積載荷に与える衝撃・振動・騒音を吸収する自在車輪及び固定車輪に設ける緩衝装置にして、本体枠内の車輪両側に重ネ板バネを車軸にUボルトで固定し親バネの両先端部で本体枠の前後を支持して荷重を負荷、本体側板が負荷重による下降に対応して車軸が保持嵌合するよう取付ける構成とすることを特徴とする、重ネ板バネそりのたわみと復元の弾性を利用する緩衝車輪。A shock absorber provided on a fixed wheel and a free wheel that absorbs shock, vibration and noise applied to the load, a heavy screw leaf spring is fixed to the axle on both sides of the wheel in the body frame with U bolts, and both ends of the main spring are used. Supporting the front and rear of the body frame to apply a load, and mounting the body side plate so that the axle can be held and fitted in response to the descent due to the load weight. A buffer wheel that uses elasticity. 前記目的の緩衝装置にして本体枠側面中心に貫通する車軸の両先端部に案内ネジボルトを貫入させ、案内ネジボルトに圧縮コイルバネ及び調節ナツトを介在させて上端を本体上面板に固定、、本体側板が負荷重による下降に対応して車軸が保持嵌合するよう取付ける構成とすることを特徴とする、圧縮コイルバネの弾性体を圧縮しその復元力を利用する緩衝車輪。A guide screw bolt penetrates into both ends of an axle penetrating through the center of the side of the main body frame as the above-mentioned shock absorber, and a compression coil spring and an adjusting nut are interposed in the guide screw bolt, and the upper end is fixed to the main body upper plate. A shock-absorbing wheel that compresses an elastic body of a compression coil spring and utilizes its restoring force, wherein the axle is mounted so as to be held and fitted in response to a descent caused by a load. 自在車輪の進行切替え時に本体に取付ける車輪のみが進行方向に平行して逆回転する構成とするために、車軸取付位置を主軸の垂直線上の本体両側板の中心位置に設け、本体上板中央に偏芯前後のスライド溝を設け進行切替え時に、主軸が取付部及び旋回部と同時に偏芯所定間のスライド溝を移動する構成とすることを特徴とする、自在車輪に装置する緩衝車輪。The axle mounting position is provided at the center of both body side plates on the vertical line of the main shaft, and in the center of the upper body plate, so that only the wheels mounted on the body are reversely rotated in parallel with the traveling direction when the universal wheels are switched. A shock absorbing wheel mounted on a free wheel, characterized in that a slide groove before and after eccentricity is provided and a main shaft moves in a slide groove for a predetermined eccentricity at the same time as a mounting portion and a turning portion at the time of progress switching.
JP2002236125A 2002-07-09 2002-07-09 Shock absorbing wheel Pending JP2004042870A (en)

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JP2020016078A (en) * 2018-07-25 2020-01-30 ジャパンパイル株式会社 Constant temperature curing device and vehicle
CN114719902A (en) * 2022-03-25 2022-07-08 河北邯峰发电有限责任公司 Intelligent air quantity and air pressure measuring test method
WO2023103867A1 (en) * 2021-12-09 2023-06-15 深圳市普渡科技有限公司 Wheel shock absorption structure and mobile device

Cited By (9)

* Cited by examiner, † Cited by third party
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JP2015058760A (en) * 2013-09-17 2015-03-30 阿部 清 Caster
CN103803222A (en) * 2014-01-14 2014-05-21 江苏泰润物流装备有限公司 Dustbin idler wheel device
CN104108287A (en) * 2014-05-27 2014-10-22 太仓兴锋脚轮有限公司 Shock-resistant universal wheel
CN107628133A (en) * 2017-10-12 2018-01-26 徐州徐工矿山机械有限公司 A kind of quarry tipper loading space shock mitigation system
CN107628133B (en) * 2017-10-12 2024-01-30 徐州徐工矿业机械有限公司 Cargo compartment damping system of mining dump truck
JP2020016078A (en) * 2018-07-25 2020-01-30 ジャパンパイル株式会社 Constant temperature curing device and vehicle
JP7227450B2 (en) 2018-07-25 2023-02-22 ジャパンパイル株式会社 Constant temperature curing device and vehicle
WO2023103867A1 (en) * 2021-12-09 2023-06-15 深圳市普渡科技有限公司 Wheel shock absorption structure and mobile device
CN114719902A (en) * 2022-03-25 2022-07-08 河北邯峰发电有限责任公司 Intelligent air quantity and air pressure measuring test method

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