JP5601649B2

JP5601649B2 - Caster with brake

Info

Publication number: JP5601649B2
Application number: JP2012138588A
Authority: JP
Inventors: 蔡博全
Original assignee: 蔡博全
Priority date: 2012-06-20
Filing date: 2012-06-20
Publication date: 2014-10-08
Anticipated expiration: 2032-06-20
Also published as: JP2014000910A

Description

本発明は、キャスターに関するものであり、さらに詳しくは、ワンタッチでキャスターの回転作動の制動が可能であり、或いは、同時に、キャスターの転がり及び回転作動の制動可能な双機能を有するブレーキ付きキャスターに関するものである。 The present invention relates to a caster, and more particularly, to a caster with a brake capable of braking the rotation operation of the caster with one touch, or simultaneously having a dual function capable of braking and rolling the caster. It is.

一般の、市販のキャスターは、キャスターの変位及び回転を同時に制動する場合、種々の構造が採用され、例えば、図１と図２に示すように、従来の二輪式集中キャスターは、固定管１１や輪座１２および輪体１３が設けられてあり、その固定管１１は、制御棒１１１やカム１１２、ブレーキ連接棒１１３、制限スリーブ１１４、弾性素子機構１１５、制限ブロック１１６およびブレーキ機構１１７が設けられている。 In general, commercially available casters adopt various structures when braking and displacing the casters at the same time. For example, as shown in FIG. 1 and FIG. A ring seat 12 and a ring body 13 are provided, and the fixed pipe 11 is provided with a control rod 111, a cam 112, a brake connecting rod 113, a restriction sleeve 114, an elastic element mechanism 115, a restriction block 116, and a brake mechanism 117. ing.

上記制御棒１１１によって上記カム１１２が連動し、上記カム１１２は、第一耳部１１２１と第二耳部１１２２が形成されてあり、ブレーキ連接棒１１３が、制限スリーブ１１４に貫設され、また、ブレーキ連接棒１１３の下端が、ブレーキ機構１１７に対応し、弾性素子機構１１５により、ブレーキ連接棒１１３が、上方に復帰する。制御棒１１１によってカム１１２が作動して、第一の耳部１１２１が、ブレーキ連接棒１１３のピンローラー１１３１に対応すると、ブレーキ連接棒１１３が下へ押さえられ、ブレーキ連接棒１１３の下段にある制限ブロック１１６が、輪座１２の嵌合槽１２１に突入して、輪体１３が直進しかできないように制限される。 The cam 112 is interlocked by the control rod 111, the cam 112 is formed with a first ear portion 1121 and a second ear portion 1122, a brake connecting rod 113 is provided through the limiting sleeve 114, and The lower end of the brake connecting rod 113 corresponds to the brake mechanism 117, and the brake connecting rod 113 is returned upward by the elastic element mechanism 115. When the cam 112 is actuated by the control rod 111 and the first ear 1121 corresponds to the pin roller 1131 of the brake connecting rod 113, the brake connecting rod 113 is pressed down, and the lower limit of the brake connecting rod 113 is limited. The block 116 enters the fitting tank 121 of the wheel seat 12 and is restricted so that the ring body 13 can only go straight.

また、制御棒１１１によってカム１１２が連動し、第二の耳部１１２２が、ブレーキ連接棒１１３のピンローラー１１３１に対応すると、ブレーキ連接棒１１３が連動して、制限スリーブ１１４が連動し、制限スリーブ１１４により、制限素子１１４１が、輪座１２の制限素子１２２に対応して係合することにより、ブレーキ連接棒１１３と制限スリーブ１１４が、回転できなくなる。また、ブレーキ連接棒１１３が連動し、ブレーキ連接棒１１３の当接ブロック１１３２が下へ押さえられて、スライダー１１７２の斜面１１７３に当接し、スライダー１１７２が、輪座１２において、摺動して、制動素子１１７１が、輪体１３の制動部材１３１に挿入することにより、ブレーキを掛けることができる。 Further, when the cam 112 is interlocked by the control rod 111 and the second ear 1122 corresponds to the pin roller 1131 of the brake connecting rod 113, the brake connecting rod 113 is interlocked, the limiting sleeve 114 is interlocked, and the limiting sleeve 114, the limiting element 1141 engages with the limiting element 122 of the wheel seat 12 so that the brake connecting rod 113 and the limiting sleeve 114 cannot rotate. In addition, the brake connecting rod 113 is interlocked, the contact block 1132 of the brake connecting rod 113 is pressed down, contacts the inclined surface 1173 of the slider 1172, and the slider 1172 slides on the wheel seat 12 to perform braking. The element 1171 can be braked by being inserted into the braking member 131 of the ring body 13.

ブレーキ付きキャスターについては多数の提案があり、例えば、特開平１１−５９１１３号公報（以下、「特許文献１」という。）には、下り坂を移動させたり、または平地を移動中に停止させたりするときでも自動的に制動力を与えることができ、また負荷に対して制動力を与えることが可能なブレーキ付きキャスターが記載されている。 There have been many proposals for casters with brakes. For example, in Japanese Patent Application Laid-Open No. 11-59113 (hereinafter referred to as “Patent Document 1”), a downhill is moved or a flat ground is stopped while moving. A brake caster that can automatically apply a braking force even when it is applied and can apply a braking force to a load is described.

また、特開平１１−２７８００６号公報（以下、「特許文献２」という。）には、キャスター自体にはブレーキを設けることなく、車輪と床との間の隙間に介在して車輪の走行を阻止するキャスターの位置保持具が記載されている。 Japanese Patent Application Laid-Open No. 11-278006 (hereinafter referred to as “Patent Document 2”) describes that the caster itself is not provided with a brake and is interposed in a gap between the wheel and the floor to prevent the wheel from traveling. A caster position holder is described.

しかし、特許文献１には、転がりに対する制動機能については記載されているが、キャスターの回転と転がり変位を同時に制動する機構については開示されていない。また、特許文献２にも前記の双機能については開示されていない。 However, Patent Document 1 describes a braking function against rolling, but does not disclose a mechanism that simultaneously brakes rotation of a caster and rolling displacement. Further, Patent Document 2 does not disclose the dual function.

従って、本発明の主な課題は、キャスターの回転作動を、独自に制動することができ、キャスターが、直進しかできず、或いは、キャスターの転がり変位及び回転を同時に制動でき、キャスターに二重ブレーキを掛ける効果を得ることが得られるブレーキ付きキャスターを提供することにある。 Accordingly, the main problem of the present invention is that the rotation operation of the caster can be independently braked, and the caster can only go straight, or the rolling displacement and rotation of the caster can be braked simultaneously, and the caster can be double braked. An object of the present invention is to provide a caster with a brake that can obtain an effect of applying a brake.

本発明の他の課題は、回転制御棒によって回転体を連動させ、回転体の下部突縁とロードシートの高斜面、低斜面或いは円弧の対応位置を変化させ、これにより、キャスターに対して、直進変位の定向制御やキャスターの回転及び変位をともに制動する双ブレーキ制御、或いは、キャスターの回転及び変位にブレーキ無しに、制御することができるブレーキ付きキャスターを提供することにある。 Another problem of the present invention is that the rotating body is interlocked by the rotation control rod, and the corresponding position of the lower projecting edge of the rotating body and the high slope, low slope or arc of the load seat is changed. It is an object of the present invention to provide a caster with a brake capable of controlling the direct direction displacement and the double brake control for braking both the rotation and the displacement of the caster, or the rotation and the displacement of the caster without a brake.

そこで、本発明者は、本発明の前記課題を解決するため、鋭意検討を重ねた結果、回転体の形状を特定することにより、連接棒の上下位置を制御することにより、キャスターの車輪方向の回転作動及び転がり作動を制御可能な構成とできることに着目し、かかる知見に基いて本発明に想到するに至った。 Therefore, the present inventor has conducted extensive studies to solve the above-described problems of the present invention, and as a result of identifying the shape of the rotating body and controlling the vertical position of the connecting rod, Focusing on the fact that the rotation operation and the rolling operation can be controlled, the present invention has been conceived based on such knowledge.

すなわち、本発明に係るブレーキ付きキャスターは、前記双機能を有するブレーキ付きキャスターに関するものであり、かかる集中双機能ブレーキ付きキャスターは、キャスター本体、連動機構、制動機構、左側ローラー、右側ローラー、軸心及び軸心スリーブが備えられ、上記軸心スリーブは、キャスター本体の軸孔に貫設され、軸心が、右側ローラーと軸心スリーブに貫設されてから、左側ローラーに結合され、また、右側ローラーの外側に、外蓋を覆うと、連動機構が、軸受とキャスター本体に貫設されてから制動機構に結合され、
連動機構は、連接棒、連接棒スリーブ、左ブッシング、右ブッシング、ロードシート、回転体、第一弾性素子及び制御棒が備えられ、連接棒の下端が、第一弾性素子と連接棒スリーブに貫設され、第一弾性素子が、連接棒スリーブの内部に位置し、ロードシートが、連接棒頂部溝と連接棒スリーブ頂部溝に挿設され、ロードシート頂部に、回転体が設置され、回転体の下端突縁が、ロードシート頂部の高斜面と低斜面との間にある円弧に対応し、連接棒と連接棒スリーブの外側に、左、右ブッシングが設置され、左、右ブッシングの内面にある当接縁が、回転体の第一耳部、第二の耳部の間に位置し、左、右ブッシングが、設置されると、左、右ブッシングに形成された貫通孔と回転体の六角貫通孔とが一致し、制御棒が貫設され、制御棒により、回転体が回転され、連動機構の連接棒と連接棒スリーブが、軸受とキャスター本体に貫設されてから、制動機構に結合され、
制動機構は、第二弾性素子とロック部材、歯ディスク、Ｔ型ブッシング、第三弾性素子、係止部材、ガスケットねじ、上位置付けシート及び下位置付けシートが備えられ、第二弾性素子が、ロック部材の∪型体の円槽縁内に設置され、第三弾性素子が、Ｔ型ブッシングの下段に嵌設され、第三弾性素子が、Ｔ型ブッシングと係止部材との間に位置し、キャスター本体の連動機構に貫設された連接棒と連接棒スリーブが、歯ディスクに貫設され、連接棒スリーブと歯ディスクが係合し、また、連接棒スリーブに貫設された連接棒が、順に、制動機構ロック部材の円柱やＴ型ブッシング及び係止部材に貫設された後、ガスケットねじで連接棒の方型段の螺合槽にロックされ、ガスケットねじの下方において、キャスター本体の底面に、上位置付けシートと下位置付けシートがロックされ、上位置付けシートの一側にある四角孔が、係止部材と一致し、上位置付けシートのもう一側にある円形孔が、下位置付けシートの円形孔とロック部材の円槽縁と一致し、
軸心スリーブは、キャスター本体及び制動機構のロック部材の∪型体の軸心スリーブ孔に貫設されてから、軸心及びローラーが結合されることにより、制動機構のロック部材の∪型体の両側が、それぞれ、キャスター本体の両側に位置し、また、上記∪型体内に位置する第二弾性素子のもう一端が、キャスター本体の底部に当接し、ロック部材の∪型体の両側にある水平ラック歯車が、左、右側ローラーの係合槽に対応し、ロック部材の円柱の係合槽が、歯ディスクののこぎり歯に対応するように構成されたものである。 That is, the caster with brake according to the present invention relates to the caster with brake having the dual function, and the caster with concentrated dual function brake includes the caster body, the interlock mechanism, the brake mechanism, the left roller, the right roller, and the shaft center. And an axial sleeve, and the axial sleeve penetrates the shaft hole of the caster body, the axial center penetrates the right roller and the axial sleeve, and then is coupled to the left roller. Covering the outer lid on the outside of the roller, the interlocking mechanism is penetrated through the bearing and caster body and then coupled to the braking mechanism.
The interlock mechanism includes a connecting rod, a connecting rod sleeve, a left bushing, a right bushing, a load sheet, a rotating body, a first elastic element, and a control rod, and the lower end of the connecting rod penetrates the first elastic element and the connecting rod sleeve. The first elastic element is located inside the connecting rod sleeve, the load sheet is inserted into the connecting rod top groove and the connecting rod sleeve top groove, and the rotating body is installed at the load sheet top portion. The left and right bushings correspond to the arc between the high and low slopes of the top of the load seat, and the left and right bushings are installed outside the connecting rod and connecting rod sleeve. A certain contact edge is located between the first and second ears of the rotating body, and when the left and right bushings are installed, the through holes formed in the left and right bushings and the rotating body The hexagonal through hole is aligned with the control rod. Ri, the rotating body is rotated, the connecting rod and connecting rod sleeve of the interlocking mechanism, since the penetrated into the bearing and castor body, coupled to the brake mechanism,
The braking mechanism includes a second elastic element and a lock member, a tooth disk, a T-shaped bushing, a third elastic element, a locking member, a gasket screw, an upper positioning sheet, and a lower positioning sheet. The third elastic element is installed in the lower stage of the T-type bushing, the third elastic element is located between the T-type bushing and the locking member, The connecting rod and connecting rod sleeve, which are penetrated by the interlocking mechanism of the main body, are penetrated by the tooth disk, the connecting rod sleeve and the tooth disc are engaged, and the connecting rod which is penetrated by the connecting rod sleeve is in turn. After being inserted into the cylinder or T-type bushing of the brake mechanism locking member and the locking member, it is locked to the screwing tank of the square step of the connecting rod with the gasket screw, and below the gasket screw, on the bottom surface of the caster body , Positioned above The square hole on one side of the upper positioning sheet is aligned with the locking member, and the circular hole on the other side of the upper positioning sheet is locked with the circular hole on the lower positioning sheet. Coincides with the edge of the tank
The shaft center sleeve is inserted through the shaft sleeve hole of the caster body and the locking member lock member of the braking mechanism, and then the shaft center and the roller are coupled to each other so that the locking member lock member of the braking mechanism is connected. Both sides are located on both sides of the caster body, and the other end of the second elastic element located in the saddle body is in contact with the bottom of the caster body, and the horizontal sides on both sides of the saddle body of the lock member. The rack gear corresponds to the engagement tank of the left and right rollers, and the cylindrical engagement tank of the lock member is configured to correspond to the saw teeth of the tooth disk.

かくして、請求項１に係る発明によれば、
キャスター本体、連動機構、制動機構、左側ローラー、右側ローラー、軸心及び軸心スリーブが備えられ、上記軸心スリーブが、キャスター本体の軸孔に貫設されることにより、軸心が、右側ローラーと軸心スリーブに貫設されてから、左側ローラーに結合され、右側ローラーの外側に、外蓋が覆われ、連動機構が、軸受とキャスター本体に貫設されてから、制動機構に結合されるブレーキ付きキャスターであって、
連動機構は、連接棒、連接棒スリーブ、左ブッシング、右ブッシング、ロードシート、回転体、第一弾性素子及び制御棒が備えられ、上記連接棒の下端において、第一弾性素子が、連接棒スリーブの内部に位置するように、第一弾性素子及び連接棒スリーブが貫設され、これにより、ロードシートが、連接棒の頂部溝及び連接棒スリーブの頂溝内に挿設され、上記ロードシートの頂部に、回転体が設置され、回転体の下端突縁が、ロードシート頂部の高斜面と低斜面との間に形成されてある円弧に対応し、連接棒及び連接棒スリーブの外側に、左ブッシング及び右ブッシングがあり、左ブッシング及び右ブッシングの内面にある当接縁が、回転体の第一耳部、第二耳部の間に位置し、左ブッシング及び右ブッシングが覆われると、左ブッシング及び右ブッシングにある貫通孔が、回転体の六角貫通孔に一致し、制御棒が貫設され、制御棒により、回転体が回転するように作動され、これにより、連動機構の連接棒及び連接棒スリーブが、軸受及びキャスター本体に貫設されて制動機構に結合され、
制動機構は、第二弾性素子、ロック部材、歯ディスク、Ｔ型ブッシング、第三弾性素子、係止部材、ガスケットねじ、上位置付けシート及び下位置付けシートが備えられ、上記第二弾性素子が、ロック部材の∪型体の円槽縁内に位置し、上記第三弾性素子が、Ｔ型ブッシングの下段に嵌設されて、第三弾性素子が、Ｔ型ブッシングと係止部材との間に位置するようになり、これにより、キャスター本体に貫設された連動機構の連接棒及び連接棒スリーブが、歯ディスクに貫設され、連接棒スリーブと歯ディスクとが、互いに噛み合い、それから、連接棒スリーブに貫設された連接棒が、順に、制動機構のロック部材の円柱やＴ型ブッシング及び係止部材に貫設された後、ガスケットねじにより、連接棒の方型段の螺合槽に螺着され、ガスケットねじの下方において、キャスター本体の底面に、上位置付けシート及び下位置付けシートがロックされ、上位置付けシートの一側にある四角孔が、係止部材に一致し、上位置付けシートのもう一側にある円形孔と下位置付けシートの円形孔及びロック部材の円槽縁が、一致し、
軸心スリーブは、キャスター本体及び制動機構のロック部材の∪型体の軸心スリーブ孔に貫設されてから、軸心及びローラーが結合されることにより、制動機構のロック部材の∪型体の両側が、それぞれ、キャスター本体の両側に位置し、また、上記∪型体内に位置する第二弾性素子のもう一端が、キャスター本体の底部に当接し、ロック部材の∪型体の両側にある水平ラック歯車が、左、右側ローラーの係合槽に対応し、ロック部材の円柱の係合槽が、歯ディスクののこぎり歯に対応する
ことを特徴とするブレーキ付きキャスターが提供される。 Thus, according to the invention of claim 1,
A caster body, an interlock mechanism, a braking mechanism, a left roller, a right roller, a shaft center, and a shaft sleeve are provided, and the shaft center is inserted into the shaft hole of the caster body so that the shaft center is a right roller. The outer sleeve is covered with the outer side of the right roller, and the interlocking mechanism is inserted into the bearing and the caster body before being connected to the braking mechanism. A caster with a brake,
The interlocking mechanism includes a connecting rod, a connecting rod sleeve, a left bushing, a right bushing, a load sheet, a rotating body, a first elastic element, and a control rod. At the lower end of the connecting rod, the first elastic element is a connecting rod sleeve. The first elastic element and the connecting rod sleeve are penetrated so as to be located inside, so that the load sheet is inserted into the top groove of the connecting rod and the top groove of the connecting rod sleeve. A rotating body is installed at the top, and the lower edge of the rotating body corresponds to the arc formed between the high and low slopes of the top of the load seat, on the outside of the connecting rod and connecting rod sleeve, There is a bushing and a right bushing, and the contact edge on the inner surface of the left bushing and the right bushing is located between the first ear part and the second ear part of the rotating body, and when the left bushing and the right bushing are covered, Bussin And the through hole in the right bushing coincides with the hexagonal through hole of the rotating body, the control rod is penetrated, and the control rod is operated to rotate the rotating body. A rod sleeve is inserted through the bearing and caster body and coupled to the braking mechanism;
The braking mechanism includes a second elastic element, a lock member, a tooth disk, a T-shaped bushing, a third elastic element, a locking member, a gasket screw, an upper positioning sheet, and a lower positioning sheet, and the second elastic element is a lock The third elastic element is located in the lower part of the T-type bushing, and the third elastic element is located between the T-type bushing and the locking member. As a result, the connecting rod and connecting rod sleeve of the interlock mechanism penetrating the caster body are penetrated into the tooth disk, and the connecting rod sleeve and the tooth disk mesh with each other, and then the connecting rod sleeve The connecting rods penetrated in the cylinder are sequentially penetrated into the cylinder of the locking member of the braking mechanism, the T-shaped bushing and the locking member, and then screwed into the screwing tank of the rectangular step of the connecting rod by the gasket screw. Gasket Below the screw, the upper positioning sheet and the lower positioning sheet are locked to the bottom surface of the caster body, and the square hole on one side of the upper positioning sheet coincides with the locking member and is on the other side of the upper positioning sheet. The circular hole and the circular hole of the lower positioning sheet coincide with the circular edge of the lock member,
The shaft center sleeve is inserted through the shaft sleeve hole of the caster body and the locking member lock member of the braking mechanism, and then the shaft center and the roller are coupled to each other so that the locking member lock member of the braking mechanism is connected. Both sides are located on both sides of the caster body, and the other end of the second elastic element located in the saddle body is in contact with the bottom of the caster body, and the horizontal sides on both sides of the saddle body of the lock member. A caster with a brake is provided in which the rack gear corresponds to the engagement tank of the left and right rollers, and the engagement tank of the cylinder of the lock member corresponds to the saw tooth of the tooth disk.

請求項２に係る発明によれば、連動機構の回転体は、制御棒に連動して回転し、回転体の下部にある伸び突縁が、ロードシートの高斜面の頂端に対応すると、回転体が、第二耳部で、左、右ブッシングの当接縁に対応して当接し、連接棒の底端にある制動機構の係止部材が、上位置付けシートに形成された四角孔内に入って、キャスターが、回転不可になり、直進しかできない定向状態になることを特徴とする請求項１に記載のブレーキ付きキャスターが提供される。 According to the second aspect of the present invention, the rotating body of the interlocking mechanism rotates in conjunction with the control rod, and the extended protrusion at the lower part of the rotating body corresponds to the top end of the high slope of the load seat. However, in the second ear, the abutment of the left and right bushings abuts against the abutment edge, and the locking member of the braking mechanism at the bottom end of the connecting rod enters the square hole formed in the upper positioning sheet. Thus, the caster with a brake according to claim 1 is provided, wherein the caster becomes non-rotatable and is in a fixed orientation state in which it can only go straight.

請求項３に係る発明によれば、連動機構の回転体は、制御棒に連動して回転し、回転体の下部にある伸び突縁が、ロードシートの低斜面に対応すると、回転体が、第一耳部で、左、右ブッシングの当接縁に対応して当接し、連動機構の連接棒により、制動機構のロック部材が連動して上へ変位し、ロック部材の円柱の係合槽と、歯ディスクののこぎり歯とが、互いに噛み合い、同時に、ロック部材の∪型体の両側にある水平ラック歯車と、左、右側ローラーの係合槽とが、互いに噛み合い、キャスターの回転及び転がりが、制動される状態になることを特徴とする請求項１に記載のブレーキ付きキャスターが提供される。 According to the invention according to claim 3, the rotating body of the interlocking mechanism rotates in conjunction with the control rod, and when the extending protrusion at the lower part of the rotating body corresponds to the low slope of the load sheet, the rotating body is At the first ear, the left and right bushings abut against the abutting edges, and the locking member of the braking mechanism is displaced upward by the connecting rod of the interlocking mechanism, and the cylinder engaging tank of the locking member And the tooth teeth of the tooth disk mesh with each other. At the same time, the horizontal rack gears on both sides of the saddle member of the locking member and the engagement tubs of the left and right rollers mesh with each other, and the caster rotates and rolls. The caster with a brake according to claim 1 is provided.

請求項４に係る発明によれば、連動機構の回転体は、制御棒に連動されて回転し、回転体の下部に形成されてある伸び突縁が、ロードシートの円弧に対応すると、左、右ブッシングの当接縁が、回転体の第一耳部、第二耳部の間に位置し、制動機構のロック部材が、その∪型体の内部に設置された第二弾性素子の回復力により、スムーズに、元の位置に復帰でき、ロック部材円柱の係合槽と、歯ディスクののこぎり歯との噛み合いが分離し、ロック部材の∪型体の水平ラック歯車と、左、右側ローラーの係合槽との噛み合いが分離し、また、係止部材が、上位置付けシートの四角孔内に位置しないため、キャスターが、回転や転がり可能の制動無し状態になることを特徴とする請求項１に記載のブレーキ付きキャスターが提供される。 According to the invention of claim 4, the rotating body of the interlocking mechanism rotates in conjunction with the control rod, and when the extended protrusion formed at the lower part of the rotating body corresponds to the arc of the load seat, The contact edge of the right bushing is located between the first and second ears of the rotating body, and the locking member of the braking mechanism is the recovery force of the second elastic element installed inside the saddle-shaped body Can smoothly return to the original position, and the engagement between the engagement tank of the lock member cylinder and the saw tooth of the tooth disk is separated, and the horizontal rack gear of the saddle body of the lock member and the left and right rollers The engagement with the engagement tank is separated, and the locking member is not positioned in the square hole of the upper positioning sheet, so that the caster is in a state of no braking that can be rotated and rolled. The caster with a brake as described in 1. is provided.

請求項５に係る発明によれば、制動機構のロック部材の∪型体の両側に設けてある水平ラック歯車が、上昇して左、右側ローラーの係合槽に噛み合う時、或いは、降下して左、右側ローラーの係合槽から脱離する時、キャスターの軸心スリーブ及び軸心が、制動機構のロック部材の∪型体に設置された軸心スリーブの孔内に変位することを特徴とする請求項１に記載のブレーキ付きキャスターが提供される。 According to the fifth aspect of the present invention, when the horizontal rack gears provided on both sides of the saddle member of the locking member of the braking mechanism are raised and meshed with the engagement tanks of the left and right rollers, or lowered. When the left and right rollers are disengaged from the engagement tank, the axial sleeve and the axial center of the caster are displaced into the hole of the axial sleeve installed in the saddle body of the locking member of the braking mechanism. A brake caster according to claim 1 is provided.

本発明は、前記の通りの構成からなり、ワンタッチによる簡易な制御棒の操作により、キャスターの回転作動を制動することができ、また、キャスターの回転作動と転がりの両作動を同時に制動することができる。 The present invention has the above-described configuration, and can be used to brake the rotation operation of the caster by a simple one-touch operation of the control rod. Further, both the rotation operation and the rolling operation of the caster can be braked simultaneously. it can.

以下、図面を参照しながら、本発明の特徴や技術内容について、具体的に説明するが、それらの図面等は、参考や説明のためのものであり、本発明は、それらによって限定されるものではない。 Hereinafter, the features and technical contents of the present invention will be specifically described with reference to the drawings. However, the drawings and the like are for reference and explanation, and the present invention is limited thereto. is not.

図３乃至図５に示すように、本発明に係る双機能を有するブレーキ付きキャスター１には、キャスター本体２や連動機構３、制動機構４及び左側ローラー５、右側ローラー５ａが備えられたものである。 As shown in FIGS. 3 to 5, the caster with brake 1 having a dual function according to the present invention includes a caster body 2, an interlocking mechanism 3, a braking mechanism 4, a left roller 5, and a right roller 5 a. is there.

上記連動機構３は、連接棒３０と連接棒スリーブ３１、左ブッシング３２ａ、右ブッシング３２ｂ、ロードシート３３、回転体３４、第一弾性素子３５及び制御棒３６から構成される。上記連接棒３０の頂部に、ロードシート３３が挿設されるための溝３０１があり、底部に、方型段３０２があり、上記方型段３０２の中央に、螺合槽３０３を形成させてある。 The interlocking mechanism 3 includes a connecting rod 30, a connecting rod sleeve 31, a left bushing 32a, a right bushing 32b, a load sheet 33, a rotating body 34, a first elastic element 35, and a control rod 36. There is a groove 301 for inserting the load sheet 33 at the top of the connecting rod 30, a square step 302 at the bottom, and a screwing tank 303 is formed at the center of the square step 302. is there.

上記連接棒スリーブ３１は、頂部に、ロードシート３３が挿設されるための溝３１０があり、中央に、第一弾性素子３５が設置されるための円槽３１１が設けてある。左、右ブッシング３２ａ、３２ｂは、互いに対応するもので、頂部に、制御棒３６が貫設されるための貫通孔３２０ａ、３２０ｂがあり、左、右ブッシング３２ａ、３２ｂの内面において、適当な位置に、それぞれ、左、右ブッシング３２ａ、３２ｂと一体成型である当接縁３２１ａ、３２１ｂが形成される。上記当接縁３２１ａと当接縁３２１ｂは、互いに対応するもので、上記ロードシート３３は、頂面に、高低差を有する高斜面、低斜面３３０、３３１があり、両斜面の間に、円弧３３２があり、上記回転体３４は、頂部の両側に、それぞれ、第一耳部、第二耳部３４０、３４１があり、中央に、六角貫通孔３４２があり、下端から突縁３４３が伸びている。上記連接棒３０の下端が、第一弾性素子３５及び連接棒スリーブ３１に貫設されて、第一弾性素子３５が、連接棒スリーブ３１の内部に位置するように、ロードシート３３が、連接棒３０の頂部溝３０１及び連接棒スリーブ３１の頂部溝３１０内に挿設される。ロードシート３３の頂部に、回転体３４が設置され、回転体３４の下端から延びた突縁３４３の末端が、ロードシート３３の円弧３３２内に対応する。 The connecting rod sleeve 31 has a groove 310 for inserting the load sheet 33 at the top, and a circular tank 311 for installing the first elastic element 35 at the center. The left and right bushings 32a and 32b correspond to each other, and there are through holes 320a and 320b through which the control rods 36 are penetrated at the top, and appropriate positions on the inner surfaces of the left and right bushings 32a and 32b. In addition, contact edges 321a and 321b are formed integrally with the left and right bushings 32a and 32b, respectively. The contact edge 321a and the contact edge 321b correspond to each other, and the load sheet 33 has a high slope and low slopes 330 and 331 having height differences on the top surface, and an arc between the slopes. 332, the rotating body 34 has first and second ear portions 340 and 341 on both sides of the top portion, a hexagonal through hole 342 in the center, and a protruding edge 343 extending from the lower end. Yes. The load seat 33 is connected to the connecting rod 30 such that the lower end of the connecting rod 30 is provided through the first elastic element 35 and the connecting rod sleeve 31 so that the first elastic element 35 is located inside the connecting rod sleeve 31. 30 top grooves 301 and a top groove 310 of the connecting rod sleeve 31 are inserted. The rotating body 34 is installed on the top of the load sheet 33, and the end of the protruding edge 343 extending from the lower end of the rotating body 34 corresponds to the arc 332 of the load sheet 33.

連接棒３０及び連接棒スリーブ３１の外側に、左、右ブッシング３２ａ、３２ｂが設置され、左、右ブッシング３２ａ、３２ｂの内面にある当接縁３２１ａ、３２１ｂが、回転体３４の第一耳部、第二耳部３４０、３４１の間に位置し、左、右ブッシング３２ａ、３２ｂが、設置された後、その外に、ブッシングリング６０が設置され、ブッシングリング６０が、左、右ブッシング３２ａ、３２ｂの下縁に当接し、左、右ブッシング３２ａ、３２ｂの貫通孔３２０ａ、３２０ｂが、回転体３４の六角貫通孔３４２に一致し、制御棒３６が、貫設される。 The left and right bushings 32 a and 32 b are installed outside the connecting rod 30 and the connecting rod sleeve 31, and the contact edges 321 a and 321 b on the inner surfaces of the left and right bushings 32 a and 32 b are the first ear portions of the rotating body 34. After the left and right bushings 32a and 32b are installed, the bushing ring 60 is installed outside the second ear parts 340 and 341, and the bushing ring 60 is connected to the left and right bushings 32a, The through holes 320a and 320b of the left and right bushings 32a and 32b are aligned with the hexagonal through holes 342 of the rotating body 34, and the control rod 36 is penetrated.

制動機構４は、第二弾性素子４０、ロック部材４１、歯ディスク４２、Ｔ型ブッシング４３、第三弾性素子４４、係止部材４５、上位置付けシート４６、下位置付けシート４７及びガスケットねじ４８から構成される。 The braking mechanism 4 includes a second elastic element 40, a lock member 41, a tooth disk 42, a T-shaped bushing 43, a third elastic element 44, a locking member 45, an upper positioning sheet 46, a lower positioning sheet 47, and a gasket screw 48. Is done.

ロック部材４１は、一側が、円柱４１０になり、もう一側に、円柱４１０と一体成型である∪型体４１１が形成される。上記円柱４１０の頂部と底部に、それぞれ、頂部凹槽４１２と底部凹槽４１３が設けられてある。上記頂部凹槽４１２の中央に、底部凹槽４１３に貫通して連動機構３の連接棒３０が貫設するための貫通孔４１４が形成されてある。円柱４１０の頂面に、一回りの歯ディスク４２ののこぎり歯４２０と係合できる係合槽４１５が設けられる。ロック部材４１の∪型体４１１の両側において、適当な位置に、対応する軸心スリーブ孔４１６が設置され、上記∪型体４１１の両側において、頂部から、それぞれ、外へ水平ラック歯車４１７が突出し、∪型体４１１の中央に、第二弾性素子４０が設置されるための円槽縁４１８が形成される。 The lock member 41 has a column 410 on one side, and a bowl 411 formed integrally with the column 410 on the other side. A top concave tank 412 and a bottom concave tank 413 are provided on the top and bottom of the cylinder 410, respectively. A through hole 414 is formed in the center of the top concave tank 412 so as to penetrate the bottom concave tank 413 and through which the connecting rod 30 of the interlocking mechanism 3 penetrates. On the top surface of the cylinder 410, an engagement tub 415 that can be engaged with the sawtooth 420 of the circular tooth disk 42 is provided. Corresponding axial sleeve holes 416 are provided at appropriate positions on both sides of the saddle member 411 of the lock member 41, and horizontal rack gears 417 protrude outward from the top on both sides of the saddle member 411, respectively. In the center of the saddle-shaped body 411, a tank edge 418 for forming the second elastic element 40 is formed.

Ｔ型ブッシング４３は、中央に、連接棒３０の方型段３０２が貫設されるための貫通孔４３０が形成される。係止部材４５は、中央に、連動機構３の連接棒３０の方型段３０２が貫設されるための四角孔４５０が形成される。上位置付けシート４６は、一側に、係止部材４５を通すための四角孔４６０が形成され、もう一側に、ロック部材４１の円槽縁４１８を通すための円形孔４６１が形成される。下位置付けシート４７は、両側に、それぞれ、上位置付けシート４６の四角孔４６０と円形孔４６１に対応する円形孔４７０、４７１が形成される。円形孔４７１は、ロック部材４１の円槽縁４１８を通すためのものであり、第二弾性素子４０を、ロック部材４１の∪型体４１１の円槽縁４１８内に設置して、第三弾性素子４４を、Ｔ型ブッシング４３の下段外に嵌設すると、第三弾性素子４４が、Ｔ型ブッシング４３と係止部材４５との間に位置するようになり、連動機構３の連接棒３０と連接棒スリーブ３１の下段を、軸受６とキャスター本体２に貫設してから、制動機構４の歯ディスク４２に貫設し、連接棒スリーブ３１の底端が、歯ディスク４２の貫通孔４２１に係合する。連動機構３の連接棒３０を、さらに、ロック部材４１の貫通孔４１４とＴ型ブッシング４３の貫通孔４３０及び係止部材４５の四角孔４５０に貫設してから、ガスケットねじ４８により、連接棒３０の方型段３０２の螺合槽３０３にロックされ、ガスケットねじ４８の下方において、キャスター本体２の底面に、上位置付けシート４６と下位置付けシート４７がロックされ、上位置付けシート４６の一側にある四角孔４６０と係止部材４５とが、一致し、係止部材４５が可動である時、四角孔４６０を通過でき、上位置付けシート４６のもう一側にある円形孔４６１と下位置付けシート４７の円形孔４７１及びロック部材４１の円槽縁４１８が、一致し、ロック部材４１が可動である時、その円槽縁４１８が、円形孔４６１、４７１を通過できる。 The T-type bushing 43 is formed with a through-hole 430 in the center for allowing the rectangular step 302 of the connecting rod 30 to pass therethrough. The locking member 45 is formed at the center with a square hole 450 through which the square step 302 of the connecting rod 30 of the interlocking mechanism 3 passes. The upper positioning sheet 46 is formed with a square hole 460 for passing the locking member 45 on one side, and a circular hole 461 for passing the tank edge 418 of the lock member 41 on the other side. The lower positioning sheet 47 is formed with circular holes 470 and 471 corresponding to the square holes 460 and the circular holes 461 of the upper positioning sheet 46 on both sides, respectively. The circular hole 471 is for passing the circular rim 418 of the lock member 41, and the second elastic element 40 is installed in the circular rim 418 of the saddle-shaped body 411 of the lock member 41, so that the third elastic When the element 44 is fitted outside the lower stage of the T-type bushing 43, the third elastic element 44 comes to be positioned between the T-type bushing 43 and the locking member 45, and the connecting rod 30 of the interlock mechanism 3 The lower stage of the connecting rod sleeve 31 is penetrated through the bearing 6 and the caster body 2 and then through the tooth disk 42 of the braking mechanism 4, and the bottom end of the connecting rod sleeve 31 is inserted into the through hole 421 of the tooth disc 42. Engage. The connecting rod 30 of the interlocking mechanism 3 is further passed through the through hole 414 of the lock member 41, the through hole 430 of the T-type bushing 43, and the square hole 450 of the locking member 45, and then connected to the connecting rod 30 by the gasket screw 48. The upper positioning sheet 46 and the lower positioning sheet 47 are locked to the bottom surface of the caster body 2 below the gasket screw 48 and locked to one side of the upper positioning sheet 46. When a certain square hole 460 and the locking member 45 are coincident and the locking member 45 is movable, the square hole 460 can pass through the square hole 460, and the circular hole 461 and the lower positioning sheet 47 on the other side of the upper positioning sheet 46. The circular hole 471 and the circular ring edge 418 of the lock member 41 coincide with each other, and when the lock member 41 is movable, the circular ring edge 418 passes through the circular holes 461 and 471. That.

キャスター上蓋７を、左、右ブッシング３２ａ、３２ｂに貫設してから、キャスター本体２の頂部に被覆し、それから、頂蓋８を、左、右ブッシング３２ａ、３２ｂの頂部に被覆して、軸心スリーブ９が、キャスター本体２の軸孔２１に貫設され、軸心１０が、右側ローラー５ａと軸心スリーブ９に貫設されてから、左側ローラー５に結合される。さらに、右側ローラー５ａの外側に、外蓋５０を被覆して、ロック部材４１の∪型体４１１の両側が、それぞれ、キャスター本体２の両側に位置する。また、上記∪型体４１１の円槽縁４１８内に設置された第二弾性素子４０のもう一端が、キャスター本体２の底部に当接し、∪型体４１１の両側にある水平ラック歯車４１７が、左、右側ローラー５、５ａの内側にある係合槽５１に対応する位置にあり、ロック部材４１の円柱４１０が、歯ディスク４２に対応位置にある。 The caster upper lid 7 is inserted through the left and right bushings 32a and 32b and then covered on the top of the caster body 2, and then the top lid 8 is covered on the top of the left and right bushings 32a and 32b. The core sleeve 9 is penetrated through the shaft hole 21 of the caster body 2, and the shaft center 10 is penetrated through the right roller 5 a and the shaft sleeve 9 and then coupled to the left roller 5. Further, the outer lid 50 is covered on the outer side of the right roller 5a, and both sides of the saddle member 411 of the lock member 41 are located on both sides of the caster body 2, respectively. Further, the other end of the second elastic element 40 installed in the tank edge 418 of the saddle-shaped body 411 is in contact with the bottom of the caster body 2, and horizontal rack gears 417 on both sides of the saddle-shaped body 411 are provided. The cylinder 410 of the lock member 41 is in a position corresponding to the tooth disk 42 at a position corresponding to the engagement tank 51 inside the left and right rollers 5 and 5a.

図６乃至図８に示すように、制御棒３６を回転させすることにより、回転体３４が連動して回転し、回転体３４の底部から伸びた突縁３４３が、ロードシート３３の高斜面３３０の頂端に対応し、回転体３４が、第二耳部３４１で、左、右ブッシング３２ａ、３２ｂの当接縁３２１ａ、３２１ｂに対応して当接し、また、当接縁３２１ａ、３２１ｂによって回転位置が制限された時、連接棒３０が、ロードシート３３によって下へ押さえられ、その底端にある係止部材４５が、上位置付けシート４６の一側にある四角孔４６０内に突入し、キャスター１が、方向変更できなくなり、直線変位の定向状態になる。 As shown in FIGS. 6 to 8, by rotating the control rod 36, the rotating body 34 rotates in conjunction with the protruding edge 343 extending from the bottom of the rotating body 34, and the high slope 330 of the load seat 33. The rotating body 34 is in contact with the contact edges 321a and 321b of the left and right bushings 32a and 32b at the second ear 341, and is rotated by the contact edges 321a and 321b. When the connecting rod 30 is restricted, the connecting rod 30 is pressed downward by the load sheet 33, and the locking member 45 at the bottom end of the connecting rod 30 enters the square hole 460 on one side of the upper positioning sheet 46, and the caster 1 However, the direction cannot be changed, and the linear displacement is directed.

制御棒３６を回転して、回転体３４の下部から伸びた突縁３４３が、ロードシート３３の低斜面３３１に対応すると、回転体３４が、第一耳部３４０で、左、右ブッシング３２ａ、３２ｂの当接縁３２１ａ、３２１ｂに対応して当接し、当接縁３２１ａ、３２１ｂによって、回転位置が制限される時、連接棒３０が、第一弾性素子３５による回復作用により上へ変位し、それに連動されて、底端にあるＴ型ブッシング４３と係止部材４５が上へ変位し、Ｔ型ブッシング４３の頂面により、ロック部材４１が上へ押され、ロック部材４１の円柱４１０の頂面の係合槽４１５と歯ディスク４２ののこぎり歯４２０とが噛み合い、これと同時に、ロック部材４１の∪型体４１１が上へ変位するため、軸心スリーブ９と軸心１０が、∪型体４１１にある軸心スリーブ孔４１６の下端に位置し、∪型体４１１の両側にある水平ラック歯車４１７が、上へ変位することにより、それぞれ、左、右側ローラー５、５ａの内側にある係合槽５１に係合する。これにより、キャスター１の回転と転がりが、同期に制動される。ロック部材４１の円柱４１０の頂面にある係合槽４１５と∪型体４１１の両側にある水平ラック歯車４１７とが、係合している時、第三弾性素子４４の弾力で、係合緩衝して、ロック部材４１の円柱４１０の係合槽４１５が、スムーズに、歯ディスク４２ののこぎり歯４２０と係合でき、また、∪型体４１１の水平ラック歯車４１７も、スムーズに、左、右側ローラー５、５ａの係合槽５１に係合することができる。 When the projecting edge 343 extending from the lower portion of the rotating body 34 corresponds to the low slope 331 of the load seat 33 by rotating the control rod 36, the rotating body 34 is the first ear 340 and the left and right bushings 32a, When the rotational position is limited by the contact edges 321a and 321b, the connecting rod 30 is displaced upward by the recovery action of the first elastic element 35. In conjunction with this, the T-type bushing 43 and the locking member 45 at the bottom end are displaced upward, the top surface of the T-type bushing 43 pushes the lock member 41 upward, and the top of the column 410 of the lock member 41 The engagement tank 415 on the surface and the sawtooth 420 of the tooth disk 42 mesh with each other, and at the same time, the hook body 411 of the lock member 41 is displaced upward, so that the shaft sleeve 9 and the shaft core 10 are hooked. 411 The horizontal rack gears 417 located at the lower end of the axial sleeve hole 416 and located on both sides of the saddle-shaped body 411 are displaced upward, so that the engagement tanks 51 inside the left and right rollers 5 and 5a respectively move to the engagement tank 51. Engage. Thereby, rotation and rolling of the caster 1 are braked synchronously. When the engagement tank 415 on the top surface of the column 410 of the lock member 41 and the horizontal rack gears 417 on both sides of the saddle-shaped body 411 are engaged, the engagement shock is absorbed by the elasticity of the third elastic element 44. Thus, the engagement tank 415 of the cylinder 410 of the lock member 41 can smoothly engage with the saw teeth 420 of the tooth disk 42, and the horizontal rack gear 417 of the saddle member 411 can also smoothly move to the left and right sides. It can engage with the engagement tank 51 of the rollers 5 and 5a.

制御棒３６を回転させることにより、回転体３４が連動し、その底部から伸びた突縁３４３が、ロードシート３３の円弧３３２に対応する時、図５のように、左ブッシング３２ａ、右ブッシング３２ｂの当接縁３２１ａ、３２１ｂが、回転体３４の第一耳部３４０、第二耳部、３４１の間に位置し、連接棒３０が、ロードシート３３によって、適当な距離に下へ押され、その底端にあるＴ型ブッシング４３が、連動して下へ変位して、ロック部材４１に当接しなくなり、ロック部材４１が、円槽縁４１８の内部に設置された第二弾性素子４０の回復力により、スムーズに、元の位置に復帰する。その円柱４１０の係合槽４１５が、歯ディスク４２ののこぎり歯４２０に係合しなくなり、水平ラック歯車４１７も、左側ローラー５、右側ローラー５ａの係合槽５１に係合しなくなり、それと同時に、係止部材４５が、上位置付けシート４６の四角孔４６０内に位置しなくなり、キャスター１が、回転可能と転がり可能のブレーキ無しの状態になる。この時、軸心スリーブ９と軸心１０も、ロック部材４１の∪型体４１１にある軸心スリーブ孔４１６の上端に復帰する。 By rotating the control rod 36, when the rotating body 34 is interlocked and the protruding edge 343 extending from the bottom thereof corresponds to the arc 332 of the load seat 33, as shown in FIG. 5, the left bushing 32a and the right bushing 32b The contact edges 321a and 321b are positioned between the first ear 340 and the second ear 341 of the rotating body 34, and the connecting rod 30 is pushed down to an appropriate distance by the load sheet 33. The T-shaped bushing 43 at the bottom end is displaced downward in conjunction with the lock member 41 so that the lock member 41 recovers the second elastic element 40 installed inside the tank edge 418. By force, it returns to the original position smoothly. The engagement tank 415 of the cylinder 410 is not engaged with the sawtooth 420 of the tooth disk 42, and the horizontal rack gear 417 is also not engaged with the engagement tank 51 of the left roller 5 and the right roller 5a. The locking member 45 is no longer positioned within the square hole 460 of the upper positioning sheet 46, and the caster 1 is in a state without a brake that can rotate and roll. At this time, the shaft sleeve 9 and the shaft center 10 also return to the upper end of the shaft sleeve hole 416 in the saddle member 411 of the lock member 41.

以上は、本発明のより良い実施形態であり、本発明は、それらによって限定されるものではなく、本発明に係わる特許請求の範囲や明細書の内容に基づいて行った等価の変更や修正は、全てが、本発明の範囲内に含まれる。 The above is a better embodiment of the present invention, and the present invention is not limited thereto. Equivalent changes and modifications made based on the scope of the claims and the description related to the present invention are not limited thereto. , All within the scope of the present invention.

従来のキャスターの断面図である。It is sectional drawing of the conventional caster. 従来のキャスターの断面動作図である。It is a cross-sectional operation | movement figure of the conventional caster. 本発明の一実施形態によるキャスターの斜視図である。It is a perspective view of the caster by one Embodiment of this invention. 本発明の一実施形態によるキャスターの分解斜視図である。It is a disassembled perspective view of the caster by one Embodiment of this invention. 図３で示す本発明に係るキャスターのＡ−Ａ断面図（ブレーキが作動していない状態）である。It is AA sectional drawing (state which the brake is not act | operating) of the caster which concerns on this invention shown in FIG. 図３で示す本発明に係るキャスターのＡ−Ａ断面の定向動作図である。FIG. 4 is a directed operation diagram of the AA cross section of the caster according to the present invention shown in FIG. 3. 図３で示す本発明に係るキャスターのＡ−Ａ断面の双機能ブレーキの動作図である。It is an operation | movement figure of the dual function brake of the AA cross section of the caster concerning this invention shown in FIG. 図３で示す本発明に係るキャスターの一部を取り外した後の双機能ブレーキの側面動作図である。FIG. 4 is a side operation diagram of the dual function brake after a part of the caster according to the present invention shown in FIG. 3 is removed.

１キャスター
１０軸心
１１固定管
１１１制御棒
１１２カム
１１２１第一耳部
１１２２第二耳部
１１３ブレーキ連接棒
１１３１ピンローラー
１１３２当接ブロック
１１４制限スリーブ
１１４１制限素子
１１５弾性素子機構
１１６制限ブロック
１１７ブレーキ機構
１１７１制動素子
１１７２スライダー
１１７３斜面
１２輪座
１２１嵌合槽
１２２制限素子
１３輪体
２キャスター本体
２１軸孔
３連動機構
３０連接棒
３０１溝
３０２方型段
３０３螺合槽
３１連接棒スリーブ
３１０溝
３１１円槽
３２ａ左ブッシング
３２ｂ右ブッシング
３２０ａ貫通孔
３２０ｂ貫通孔
３２１ａ当接縁
３２１ｂ当接縁
３３ロードシート
３３０高斜面
３３１低斜面
３３２円弧
３４回転体
３４０第一耳部
３４１第二耳部
３４２六角孔
３４３突縁
３５第一弾性素子
３６制御棒
４制動機構
４０第二弾性素子
４１ロック部材
４１０円柱
４１１ ∪型体
４１２頂部凹槽
４１３底部凹槽
４１４貫通孔
４１５係合槽
４１６軸心スリーブ孔
４１７水平ラック歯車
４１８円槽縁
４２歯ディスク
４２０のこぎり歯
４２１貫通孔
４３Ｔ型ブッシング
４３０貫通孔
４４第三弾性素子
４５係止部材
４５０四角孔
４６上位置付けシート
４６０四角孔
４６１円形孔
４７下位置付けシート
４７０円形孔
４７１円形孔
４８ガスケットねじ
５ローラー
５ａローラー
５０外蓋
５１係合槽
６軸受
６０ブッシングリング
７キャスター上蓋
８頂蓋
９軸心スリーブ 1 Caster 10 Axle 11 Fixed tube 111 Control rod 112 Cam 1121 First ear 1122 Second ear 113 Brake connecting rod 1131 Pin roller 1132 Contact block 114 Limit sleeve 1141 Limit element 115 Elastic element mechanism 116 Limit block 117 Brake mechanism 1171 Braking element 1172 Slider 1173 Slope 12 Wheel seat 121 Fitting tank 122 Limiting element 13 Wheel body 2 Caster body 21 Shaft hole 3 Linking mechanism 30 Connecting rod 301 Groove 302 Rectangular step 303 Screwing tank 31 Connecting rod sleeve 310 Groove 311 Circle Tank 32a Left bushing 32b Right bushing 320a Through hole 320b Through hole 321a Contact edge 321b Contact edge 33 Load sheet 330 High slope 331 Low slope 332 Arc 34 Rotating body 340 First ear 341 Second ear 342 Hexagonal hole 343 Projection edge 5 First elastic element 36 Control rod 4 Braking mechanism 40 Second elastic element 41 Lock member 410 Column 411 Vertical body 412 Top concave tank 413 Bottom concave tank 414 Through hole 415 Engaging tank 416 Axis sleeve hole 417 Horizontal rack gear 418 Circular edge 42 Tooth disk 420 Saw tooth 421 Through hole 43 T-type bushing 430 Through hole 44 Third elastic element 45 Locking member 450 Square hole 46 Upper positioning sheet 460 Square hole 461 Circular hole 47 Lower positioning sheet 470 Circular hole 471 Circular Hole 48 Gasket screw 5 Roller 5a Roller 50 Outer lid 51 Engaging tank 6 Bearing 60 Bushing ring 7 Caster upper lid 8 Top lid 9 Shaft center sleeve

Claims

A caster body, an interlock mechanism, a braking mechanism, a left roller, a right roller, a shaft center, and a shaft sleeve are provided, and the shaft center is inserted into the shaft hole of the caster body so that the shaft center is a right roller. The outer sleeve is covered with the outer side of the right roller, and the interlocking mechanism is inserted into the bearing and the caster body before being connected to the braking mechanism. A caster with a brake,
The interlocking mechanism includes a connecting rod, a connecting rod sleeve, a left bushing, a right bushing, a load sheet, a rotating body, a first elastic element, and a control rod. At the lower end of the connecting rod, the first elastic element is a connecting rod sleeve. The first elastic element and the connecting rod sleeve are penetrated so as to be located inside, so that the load sheet is inserted into the top groove of the connecting rod and the top groove of the connecting rod sleeve. A rotating body is installed at the top, and the lower edge of the rotating body corresponds to an arc formed between the high slope and the low slope of the top of the load seat, on the outside of the connecting rod and connecting rod sleeve, on the left There is a bushing and a right bushing, and the contact edge on the inner surface of the left bushing and the right bushing is located between the first ear part and the second ear part of the rotating body, and when the left bushing and the right bushing are covered, the left side The The through holes formed in the single bushing and the right bushing correspond to the hexagonal through holes of the rotating body, the control rod is penetrated, and the rotating body is operated by the control rod to rotate. A connecting rod and a connecting rod sleeve are coupled to the brake mechanism through the bearing and the caster body;
The braking mechanism includes a second elastic element, a lock member, a tooth disk, a T-shaped bushing, a third elastic element, a locking member, a gasket screw, an upper positioning sheet, and a lower positioning sheet, and the second elastic element is a lock The third elastic element is located in the lower part of the T-type bushing, and the third elastic element is located between the T-type bushing and the locking member. As a result, the connecting rod and connecting rod sleeve of the interlock mechanism penetrating the caster body are penetrated into the tooth disk, and the connecting rod sleeve and the tooth disk mesh with each other, and then the connecting rod sleeve The connecting rods penetrated in the cylinder are sequentially penetrated into the cylinder of the locking member of the braking mechanism, the T-shaped bushing and the locking member, and then screwed into the screwing tank of the rectangular step of the connecting rod by the gasket screw. Gasket Below the screw, the upper positioning sheet and the lower positioning sheet are locked to the bottom surface of the caster body, and the square hole on one side of the upper positioning sheet coincides with the locking member and is on the other side of the upper positioning sheet. The circular hole matches the circular hole of the lower positioning sheet and the edge of the lock member,
The shaft center sleeve is inserted through the shaft sleeve hole of the caster body and the locking member lock member of the braking mechanism, and then the shaft center and the roller are coupled to each other so that the locking member lock member of the braking mechanism is connected. Both sides are located on both sides of the caster body, and the other end of the second elastic element located in the saddle body is in contact with the bottom of the caster body, and the horizontal sides on both sides of the saddle body of the lock member. The rack gear corresponds to the engagement tank of the left roller and the right roller, and the engagement tank of the cylinder of the lock member is a caster with a brake corresponding to the saw tooth of the tooth disk,
The rotating body of the interlocking mechanism rotates in conjunction with the control rod. When the extended protrusion at the bottom of the rotating body corresponds to the low slope of the load seat, the rotating body is the first ear, left and right The locking member of the braking mechanism is displaced upward by the connecting rod of the interlocking mechanism, and the engagement tank of the cylinder of the locking member and the saw tooth of the tooth disk are brought into contact with the contact edge of the bushing. The horizontal rack gears on both sides of the saddle member of the lock member and the engagement tubs of the left and right rollers mesh with each other, and the rotation and rolling of the casters are braked. A caster with a brake.

The rotating body of the interlocking mechanism rotates in conjunction with the control rod, and when the extending protrusion at the lower part of the rotating body corresponds to the top of the high slope of the load seat, the rotating body is at the second ear, The locking member of the braking mechanism at the bottom end of the connecting rod comes into contact with the contact edge of the right bushing and enters the square hole installed in the upper positioning sheet, and the caster becomes non-rotatable. The caster with a brake according to claim 1, wherein the caster is in a fixed state in which it can only go straight.

The rotating body of the interlocking mechanism rotates in conjunction with the control rod, and when the extended protrusion formed at the lower part of the rotating body corresponds to the arc of the load sheet, the contact edges of the left and right bushings are the rotating body. The locking member of the braking mechanism, which is located between the ear part and the second ear part, can be smoothly returned to the original position by the recovery force of the second elastic element installed inside the saddle-shaped body, The engagement between the engagement tank of the lock member cylinder and the saw tooth of the tooth disk is separated, and the engagement between the horizontal rack gear of the saddle member of the lock member and the engagement tank of the left and right rollers is separated. 2. The caster with brake according to claim 1, wherein the locking member is not positioned in the square hole of the upper positioning sheet, so that the caster is in a non-braking state capable of rotating and rolling.

When the horizontal rack gears provided on both sides of the saddle body of the locking member of the braking mechanism are raised and meshed with the engagement tanks of the left and right rollers, or lowered and detached from the engagement tanks of the left and right rollers. 2. The caster with a brake according to claim 1, wherein when being separated, the shaft sleeve and the shaft center of the caster are displaced into a hole of the shaft sleeve installed in the saddle member of the lock member of the braking mechanism. .