JP5468358B2 - Multiple caster locking mechanism - Google Patents
Multiple caster locking mechanism Download PDFInfo
- Publication number
- JP5468358B2 JP5468358B2 JP2009255088A JP2009255088A JP5468358B2 JP 5468358 B2 JP5468358 B2 JP 5468358B2 JP 2009255088 A JP2009255088 A JP 2009255088A JP 2009255088 A JP2009255088 A JP 2009255088A JP 5468358 B2 JP5468358 B2 JP 5468358B2
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- caster
- brake rod
- shafts
- casters
- 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.)
- Active
Links
- 230000007246 mechanism Effects 0.000 title claims description 92
- 230000005540 biological transmission Effects 0.000 claims description 21
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000005452 bending Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Landscapes
- Legs For Furniture In General (AREA)
- Handcart (AREA)
Description
本発明は、床頭台等の家具に取り付けられる複数キャスタのロック機構に関する。 The present invention relates to a lock mechanism for a plurality of casters attached to furniture such as a floor head.
一般に、キャスタを有する家具では、キャスタは家具の底板に取り付けられる。底板は、使用形態に応じて縦横にそれぞれ所定の寸法が確保されており、キャスタはこの広い面を持つ底板の四隅にバランスよく配置される。これらキャスタは、家具収納時、外側に突出して邪魔にならないよう底板の四隅から内側に後退して取り付けられるようになっている。従来、このような家具に取り付けられた複数キャスタのロック機構として、車輪に対して制動を行う制動手段をワイヤを介して操作レバーに連結し、遠隔操作で制動させるものが知られている(例えば、特許文献1参照)。特許文献1に記載の発明では、ワイヤを通じて操作を行うようになっているため、操作レバー側にワイヤの張力に抗してワイヤを押し出す押し出し機構と、ワイヤの張力を保持するばねと、ワイヤの張力に抗して車輪を制動するばねと、ワイヤの引き回しに応じて多数設置されるプーリと、ワイヤが干渉しない空間を確保するワイヤの通路とを設けるようにしている。 Generally, in furniture having casters, the casters are attached to the bottom plate of the furniture. The bottom plate has predetermined dimensions in the vertical and horizontal directions according to the usage pattern, and the casters are arranged in a well-balanced manner at the four corners of the bottom plate having this wide surface. These casters are mounted so as to be retracted inward from the four corners of the bottom plate so as not to get in the way of protruding outside when storing furniture. Conventionally, as a lock mechanism of a plurality of casters attached to such furniture, a mechanism is known in which braking means for braking a wheel is connected to an operation lever through a wire and braked by remote operation (for example, , See Patent Document 1). In the invention described in Patent Document 1, since the operation is performed through the wire, an extrusion mechanism that pushes the wire against the tension of the wire on the operation lever side, a spring that holds the tension of the wire, A spring for braking the wheel against the tension, a plurality of pulleys installed in response to the drawing of the wire, and a wire passage for ensuring a space where the wire does not interfere with each other are provided.
また、家具の脚に設けられた複数キャスタのロック機構として、脚ベースの前後にそれぞれ設けられた一対のキャスタと、これらキャスタをそれぞれロックするロック手段と、これらロック手段を外力により操作して作動させる操作手段とを備えるとともに、操作手段に入力された操作力をロック手段に同時に伝達する板部材を備え、一対のロック手段におけるロック動作およびロック解除動作を同時に行うようにしたものが知られている(例えば、特許文献2参照)。この特許文献2に記載の発明では、板部材は係合子がボタンの上下動に応じて屈曲変形動作すると、側片の長孔に挿通された枢着軸により水平方向にスライドし、ロックレバーを変位させ、キャスタの旋回と転動とのロックおよびロック解除動作を行うようになっている。 Also, as a locking mechanism for multiple casters provided on the legs of furniture, a pair of casters provided on the front and rear of the leg base, locking means for locking these casters, and operating these locking means by external force And a plate member that simultaneously transmits the operation force input to the operation means to the lock means, and is configured to simultaneously perform the lock operation and the lock release operation of the pair of lock means. (For example, refer to Patent Document 2). In the invention described in Patent Document 2, when the engaging member bends and deforms according to the vertical movement of the button, the plate member slides in the horizontal direction by the pivot shaft inserted into the long hole of the side piece, and the lock lever is moved. Displacement is performed to lock and unlock the caster's turning and rolling.
しかしながら、特許文献1および2に示された複数キャスタのロック機構では、いずれも構造が複雑で部品点数が多く、コストが増大するという問題がある。特に、特許文献2の発明では、板部材を水平方向にスライドさせて脚体の左右いずれか一方のキャスタを同時にロックすることはできるものの、すべてのキャスタを同時にロックすることはできないという問題がある。 However, the multi-caster locking mechanism disclosed in Patent Documents 1 and 2 has a problem that the structure is complicated, the number of parts is large, and the cost is increased. In particular, the invention of Patent Document 2 has a problem that although either the left or right caster of the leg can be locked simultaneously by sliding the plate member in the horizontal direction, not all casters can be locked simultaneously. .
本発明は上記課題を解決するためになされたもので、簡素な構造で、広い底面に取り付けられたすべてのキャスタを同時にかつ確実にロックまたはロック解除することができる複数キャスタのロック機構を提供することを目的とするものである。 The present invention has been made to solve the above-described problems, and provides a multi-caster locking mechanism that can simultaneously and reliably lock or unlock all casters attached to a wide bottom surface with a simple structure. It is for the purpose.
本発明の請求項1に係る複数キャスタのロック機構は、被取付体に取り付けられた複数のキャスタをロックする複数キャスタのロック機構であって、被取付体底面の隅部に配置され、キャスタを被取付体に旋回自在に取り付ける取付部材と、車輪が回転可能に支持されるキャスタ本体に制動部材を変位可能に収容して一端を外部に突出させ、この制動部材を変位させてキャスタの旋回と車輪の回転とをロックまたはロック解除するキャスタロック手段と、同じ方向に一列に並んで配置される取付部材に軸芯同一で回動自在に設けられる軸と、これら軸に取り付けられ制動部材に当接して制動部材を動作させる動作部材と、異なる列の取付部材に設けられた軸間を連結し一方の列の軸の回動を他方の列の軸に同一方向で伝達する伝達リンクとを備え、軸に与えられる回動力を動作部材を介して制動部材に伝達する連動手段と、一端が軸に連結され、他端が外側に延長され、他端に外力が与えられると、軸を回動させる操作手段とを備えるとともに、キャスタ本体には、旋回軸側に旋回軸と同一軸芯上に上下に貫通される縦孔を形成し、車輪の内側には周方向に沿って凹凸部を形成して構成し、キャスタロック手段を、縦孔に上下動自在に挿通された制動ロッドと、制動ロッドの上端側に挿通されたピンと、制動ロッドとキャスタ本体との間に介在され制動ロッドを下方に付勢するばねと、制動ロッドの下端に設けられ下側に凹凸部が形成された旋回止め係合部と、一端がキャスタ本体に揺動可能に枢着さればねにより常時上方に付勢され、揺動端が旋回止め係合部の下方に延びる車輪ロック部材とを備え、この車輪ロック部材の揺動端上側には、上記旋回止め係合部と係合する凹凸部を形成し、下側には、車輪の周方向凹凸部に係脱自在に係合する回転止め係合部を設けて構成するとともに、制動ロッドに挿通されたピンの下方に、動作部材をピンを押し上げ可能に配置したことを特徴とするものである。 A lock mechanism of a plurality of casters according to claim 1 of the present invention is a lock mechanism of a plurality of casters that locks a plurality of casters attached to a mounted body, and is arranged at a corner of a bottom surface of the mounted body. A mounting member that is pivotably attached to the mounted body, a brake member that is displaceably accommodated in a caster body that is rotatably supported by a wheel, and one end protrudes to the outside, and the brake member is displaced to turn the caster. Caster lock means for locking or unlocking the rotation of the wheels, shafts provided on the mounting members arranged in a line in the same direction and having the same axial center as the shafts, and rotatably mounted on the shafts. An operating member that contacts and operates the braking member, and a transmission link that couples the shafts provided in the mounting members of different rows and transmits the rotation of the shaft of one row to the shaft of the other row in the same direction. The interlocking means for transmitting the rotational force applied to the shaft to the braking member via the operating member, and one end connected to the shaft, the other end extended outward, and when the other end is given external force, the shaft is rotated. and an operating means for moving Rutotomoni, the caster body, a longitudinal hole is pierced vertically to the pivot axis on the same axis and formed on the pivot shaft side, uneven portions on the inside of the wheel along the circumferential direction The caster lock means includes a brake rod inserted through the vertical hole so as to freely move up and down, a pin inserted through the upper end of the brake rod, and a brake rod interposed between the brake rod and the caster body. A spring that urges the brake rod downward, an anti-rotation engaging portion that is provided at the lower end of the brake rod and has a concavo-convex portion on the lower side, and one end pivotally attached to the caster body so as to be swingable. The wheel whose oscillating end extends below the anti-rotation engaging portion The wheel lock member is formed with an uneven portion that engages with the anti-rotation engaging portion on the upper end of the rocking end of the wheel lock member, and can be freely engaged with and disengaged from the uneven portion in the circumferential direction of the wheel on the lower side. A rotation stop engaging portion that engages with the brake rod is provided, and an operating member is arranged below the pin inserted through the brake rod so that the pin can be pushed up .
本発明の請求項1に係る複数キャスタのロック機構では、被取付体に取り付けられた複数のキャスタをロックする複数キャスタのロック機構であって、被取付体底面の隅部に配置され、キャスタを被取付体に旋回自在に取り付ける取付部材と、車輪が回転可能に支持されるキャスタ本体に制動部材を変位可能に収容して一端を外部に突出させ、この制動部材を変位させてキャスタの旋回と車輪の回転とをロックまたはロック解除するキャスタロック手段と、同じ方向に一列に並んで配置される取付部材に軸芯同一で回動自在に設けられる軸と、これら軸に取り付けられ制動部材に当接して制動部材を動作させる動作部材と、異なる列の取付部材に設けられた軸間を連結し一方の列の軸の回動を他方の列の軸に同一方向で伝達する伝達リンクとを備え、軸に与えられる回動力を動作部材を介して制動部材に伝達する連動手段と、一端が軸に連結され、他端が外側に延長され、他端に外力が与えられると、軸を回動させる操作手段とを備えるとともに、キャスタ本体には、旋回軸側に旋回軸と同一軸芯上に上下に貫通される縦孔を形成し、車輪の内側には周方向に沿って凹凸部を形成して構成し、 キャスタロック手段を、縦孔に上下動自在に挿通された制動ロッドと、制動ロッドの上端側に挿通されたピンと、制動ロッドとキャスタ本体との間に介在され制動ロッドを下方に付勢するばねと、制動ロッドの下端に設けられ下側に凹凸部が形成された旋回止め係合部と、一端がキャスタ本体に揺動可能に枢着さればねにより常時上方に付勢され、揺動端が旋回止め係合部の下方に延びる車輪ロック部材とを備え、この車輪ロック部材の揺動端上側には、上記旋回止め係合部と係合する凹凸部を形成し、下側には、車輪の周方向凹凸部に係脱自在に係合する回転止め係合部を設けて構成するとともに、制動ロッドに挿通されたピンの下方に、動作部材をピンを押し上げ可能に配置したことにより、操作手段の他端に外力を与えて操作すると、一方の列の軸が回動しこの回動が伝達リンクを介して異なる列の軸にも伝えられて動作部材が各キャスタの制動部材を動作させ、すべてのキャスタの旋回と車輪の回転とを同時にロックし、操作手段の他端に与えられた外力と逆方向の外力を与えると、動作部材は元の位置に復帰し、動作部材の動作に伴って各制動部材も元の位置に復帰され、すべてのキャスタのロックを同時に解除する。また、操作手段により軸が回動して動作部材がピンをばねの弾発力に抗して上方へ押し下げると制動ロッドが上方に変位し、旋回止め係合部は車輪ロック部材の揺動端凹凸部との係合が解かれ旋回ロックが解除され、回転止め係合部は車輪の周方向凹凸部との係合が解かれ、車輪の回転ロックが解除される。操作手段により軸が逆方向に回動されると、動作部材は下方に変位して制動ロッドはばねの弾発力により下方に弾発復帰し、制動ロッド下端の旋回止め係合部が車輪ロック部材の揺動端上側の凹凸部に係合して旋回がロックされ、車輪のロック部材は旋回止め係合部の降下により揺動端が旋回止め係合部に係合した状態で下方に押し下げられ、回転止め係合部が車輪の周方向凹凸部に係合して車輪の回転がロックされる。 The multiple caster locking mechanism according to claim 1 of the present invention is a multiple caster locking mechanism that locks a plurality of casters attached to a mounted body, and is disposed at a corner of the bottom surface of the mounted body, A mounting member that is pivotably attached to the mounted body, a brake member that is displaceably accommodated in a caster body that is rotatably supported by a wheel, and one end protrudes to the outside, and the brake member is displaced to turn the caster. Caster lock means for locking or unlocking the rotation of the wheels, shafts provided on the mounting members arranged in a line in the same direction and having the same axial center as the shafts, and rotatably mounted on the shafts. An operating member that contacts and operates the braking member, and a transmission link that couples the shafts provided in the mounting members of different rows and transmits the rotation of the shaft of one row to the shaft of the other row in the same direction An interlocking means for transmitting the rotational force applied to the shaft to the braking member via the operating member, and one end connected to the shaft, the other end extended outward, and an external force is applied to the other end to rotate the shaft. and an operating means for moving Rutotomoni, the caster body, a longitudinal hole is pierced vertically to the pivot axis on the same axis and formed on the pivot shaft side, uneven portions on the inside of the wheel along the circumferential direction The caster lock means includes a brake rod inserted through the vertical hole so as to be movable up and down, a pin inserted through the upper end of the brake rod, and a brake rod interposed between the brake rod and the caster body. A spring that urges the brake rod downward, an anti-rotation engaging portion that is provided at the lower end of the brake rod and has a concavo-convex portion on the lower side, and one end pivotally attached to the caster body so as to be swingable. A vehicle whose oscillating end extends below the anti-rotation engaging portion. A locking member is formed on the upper end of the rocking end of the wheel locking member, and an uneven portion that engages with the anti-rotation engaging portion is formed on the lower side. In addition to providing an anti-rotation engaging part to be engaged, an operating member is arranged below the pin inserted through the brake rod so that the pin can be pushed up, so that an external force is applied to the other end of the operating means. When operated, the axis of one row rotates, and this rotation is also transmitted to the axis of a different row via the transmission link, and the operation member operates the brake member of each caster, and the rotation of all casters and the wheel When the rotation is locked at the same time and an external force in the direction opposite to the external force applied to the other end of the operating means is applied, the operating member returns to its original position, and each braking member also returns to its original position along with the operation of the operating member. Return to, and unlock all casters at the same time. Further, when the shaft is rotated by the operating means and the operating member pushes the pin upward against the spring force of the spring, the brake rod is displaced upward, and the anti-rotation engaging portion is the swing end of the wheel lock member. The engagement with the concavo-convex portion is released and the turning lock is released, and the anti-rotation engaging portion is disengaged from the circumferential concavo-convex portion of the wheel, and the rotation lock of the wheel is released. When the shaft is rotated in the reverse direction by the operating means, the operating member is displaced downward, the braking rod is elastically returned downward by the elastic force of the spring, and the anti-rotation engaging portion at the lower end of the braking rod is wheel-locked. Rotation is locked by engaging with the concavo-convex part on the upper part of the swinging end of the member, and the lock member of the wheel is pushed downward with the swinging end engaged with the pivoting stop engaging part by lowering of the pivoting stop engaging part The rotation stop engaging portion engages with the circumferential uneven portion of the wheel to lock the rotation of the wheel.
本発明の請求項2に係る複数キャスタのロック機構は、キャスタは、制動部材が軸の軸芯に対する両側のうち予め決められた一方の側に配置されるよう取付部材に取り付けられることを特徴とするものである。 The lock mechanism of a plurality of casters according to claim 2 of the present invention is characterized in that the casters are attached to the attachment member so that the braking member is disposed on one of predetermined sides of the shaft with respect to the shaft core. To do.
本発明の請求項2に係る複数キャスタのロック機構では、キャスタは、制動部材が軸の軸芯に対する両側のうち予め決められた一方の側に配置されるよう取付部材に取り付けられるようにしたことにより、制動部材の変位によるロック方向を同一にすると、操作手段の操作方向に応じて軸が同一方向に回動し、動作部材も同一方向に動作されるので、すべてのキャスタは同時にロックまたはロック解除される。 In the multiple caster locking mechanism according to claim 2 of the present invention, the caster is attached to the attachment member so that the braking member is disposed on one of predetermined sides of the shaft core. Thus, if the locking direction due to the displacement of the braking member is made the same, the shaft rotates in the same direction according to the operating direction of the operating means, and the operating members are also moved in the same direction. Canceled.
本発明の請求項3に係る複数キャスタのロック機構は、異なる列の取付部材を互いに向き合わせて配置し、軸を取付部材ごとに分割して設けたことを特徴とするものである。 The lock mechanism of a plurality of casters according to claim 3 of the present invention is characterized in that mounting members in different rows are arranged to face each other and the shaft is divided for each mounting member.
本発明の請求項3に係る複数キャスタのロック機構では、異なる列の取付部材を互いに向き合わせて配置し、軸を取付部材ごとに分割して設けたことにより、列が異なる軸同士が伝達リンクにより連結されるので、列が異なる各軸は操作手段からの力が伝達リンクを介して同一の方向で伝えられ、すべてのキャスタは同時にロックまたはロック解除される。さらに、軸を分割することにより、軸寸法を短寸化することができ、コストダウンを図ることができる。 In the multiple caster locking mechanism according to claim 3 of the present invention, the mounting members in different rows are arranged to face each other, and the shafts are divided for each mounting member, so that the shafts in different rows are connected to each other. Therefore, the shafts in different rows are transmitted in the same direction through the transmission link, and all casters are locked or unlocked at the same time. Furthermore, by dividing the shaft, the shaft size can be shortened, and the cost can be reduced.
本発明の請求項4に係る複数キャスタのロック機構は、一方の列の分割された軸間を操作手段を介して連結したことを特徴とするものである。 A lock mechanism for a plurality of casters according to claim 4 of the present invention is characterized in that the divided shafts of one row are connected via an operating means.
本発明の請求項4に係る複数キャスタのロック機構では、一方の列の分割された軸間を操作手段を介して連結したことにより、操作手段の軸方向長さ分軸を短寸化できコストダウンを図ることができる。 In the lock mechanism of a plurality of casters according to claim 4 of the present invention, since the divided shafts of one row are connected via the operating means, the axial length of the operating means can be shortened and the cost can be reduced. You can go down.
本発明の請求項5に係る複数キャスタのロック機構は、操作手段を、一端が軸に連結され、他端操作部が外側に突出した操作具により構成し、操作具と被取付体とには、操作具の一端部側に、操作具の上下方向両揺動端位置をそれぞれ規制し、操作部を各揺動端位置で保持する操作具ロック機構が設けられることを特徴とするものである。 In the multiple caster locking mechanism according to claim 5 of the present invention, the operating means is constituted by an operating tool having one end connected to the shaft and the other end operating portion protruding outwardly, and the operating tool and the attached body include The operation tool is provided with an operation tool lock mechanism that restricts both the vertical swing end positions of the operation tool and holds the operation unit at each swing end position on one end portion side of the operation tool. .
本発明の請求項5に係る複数キャスタのロック機構では、操作手段を、一端が軸に連結され、他端操作部が外側に突出した操作具により構成し、操作具と被取付体とには、操作具の一端部側に、操作具の上下方向両揺動端位置をそれぞれ規制し、操作部を各揺動端位置で保持する操作具ロック機構が設けられるようにしたことにより、操作具の他端操作部を押し下げ、操作具が下方の揺動端位置に達すると、操作具は操作具ロック機構によりそれ以上の変位が規制されて下方の揺動端位置で保持される。このため、すべてのキャスタはロックまたはロック解除の状態となる。操作具の他端操作部を引き上げ、操作具が上方の揺動端位置に達すると、操作具は操作具ロック機構によりそれ以上の変位が規制されて上方の揺動端位置で保持される。このため、すべてのキャスタは上記操作具が下方の揺動端位置でロックされた場合、ロック解除の状態となり、操作具が下方の揺動端位置でロック解除となっている場合、逆のロック状態となる。 In the lock mechanism of a plurality of casters according to claim 5 of the present invention, the operation means is constituted by an operation tool having one end connected to the shaft and the other end operation portion protruding outward, and the operation tool and the attached body include The operation tool is provided with an operation tool lock mechanism that restricts both the vertical swing end positions of the operation tool and holds the operation unit at each swing end position on one end portion side of the operation tool. When the operation tool reaches the lower swing end position, the operation tool is held at the lower swing end position by the operation tool lock mechanism. For this reason, all casters are locked or unlocked. When the other end operating portion of the operation tool is pulled up and the operation tool reaches the upper swing end position, the operation tool is held at the upper swing end position by being further displaced by the operation tool lock mechanism. For this reason, all casters are unlocked when the operation tool is locked at the lower oscillating end position, and reversely locked when the operation tool is unlocked at the lower oscillating end position. It becomes a state.
本発明の請求項6に係る複数キャスタのロック機構は、操作具ロック機構は、被取付体に取り付けられ、操作具の連結側一端部を軸とともに収容する支持具と、操作具の一端部側に取り付けられ外縁に軸に対して周方向位置を異ならせた凹溝が形成される係合プレートと、支持具の左右両壁に形成された一対の長孔に変位可能に挿通されて係合プレートの外縁に臨み、ばねを介して係合プレートの凹溝に弾発付勢される係合ピンとを備えて構成されることを特徴とするものである。 The locking mechanism for a plurality of casters according to claim 6 of the present invention is such that the operating tool locking mechanism is attached to the body to be attached and accommodates one end of the operating tool on the connection side together with the shaft, and one end of the operating tool Is attached to the outer edge of the outer plate and has a groove formed in a circumferential groove with a different circumferential position, and a pair of elongated holes formed in the left and right walls of the support member. An engagement pin that faces the outer edge of the plate and is elastically urged to a concave groove of the engagement plate via a spring is configured.
本発明の請求項6に係る複数キャスタのロック機構では、操作具ロック機構は、被取付体に取り付けられ、操作具の連結側一端部を軸とともに収容する支持具と、操作具の一端部側に取り付けられ外縁に軸に対して周方向位置を異ならせた凹溝が形成される係合プレートと、支持具の左右両壁に形成された一対の長孔に変位可能に挿通されて係合プレートの外縁に臨み、ばねを介して係合プレートの凹溝に弾発付勢される係合ピンとを備えて構成されるようにしたことにより、操作具の他端操作部に一方向の外力を付与すると、係合プレートが軸の回動に応じて回り、係合ピンはばねの弾発力に抗して係合プレートの一方の凹溝から押し出されて係合プレートの外縁に形成された他方の凹溝に嵌り込み、ばねにより弾発付勢される。このため、操作具が下方の揺動端位置に達すると、操作具はそれ以上の変位が規制されて下方の揺動端位置で保持される。反対に、操作具の他端操作部に逆方向の外力を付与すると、係合プレートが軸の回動に応じて逆方向に回り、係合ピンはばねの弾発力に抗して係合プレートの他方の凹溝から押し出されて一方の凹溝に嵌り込み、ばねにより弾発付勢される。このため、操作具が上方の揺動端位置に達すると、操作具はそれ以上の変位が規制されて上方の揺動端位置で保持される。 In the lock mechanism of a plurality of casters according to claim 6 of the present invention, the operating tool locking mechanism is attached to the body to be attached and accommodates one end of the operating tool on the connection side together with the shaft, and one end of the operating tool Is attached to the outer edge of the outer plate and has a groove formed in a circumferential groove with a different circumferential position, and a pair of elongated holes formed in the left and right walls of the support member. An engagement pin that faces the outer edge of the plate and is elastically biased to the concave groove of the engagement plate via a spring is provided, so that an external force in one direction is applied to the other end operation portion of the operation tool. The engagement plate rotates in response to the rotation of the shaft, and the engagement pin is pushed out from one concave groove of the engagement plate against the spring force of the spring and formed on the outer edge of the engagement plate. It fits into the other concave groove and is elastically biased by a spring. For this reason, when the operating tool reaches the lower swing end position, the operation tool is restrained from being displaced further and held at the lower swing end position. On the other hand, when a reverse external force is applied to the other end operation portion of the operation tool, the engagement plate rotates in the reverse direction according to the rotation of the shaft, and the engagement pin engages against the spring force of the spring. The plate is pushed out from the other groove of the plate and fitted into the groove, and is elastically biased by a spring. For this reason, when the operating tool reaches the upper swing end position, the further displacement of the operating tool is restricted and held at the upper swing end position.
本発明の請求項7に係る複数キャスタのロック機構は、縦孔を旋回軸の同一軸芯上に上下に貫通して断面角形状に形成し、この縦孔の形状にほぼ合致して形成した制動ロッドをこの縦孔に上下動自在に挿通してこれら両者で回り止めをはかることを特徴とするものである。 In the lock mechanism for a plurality of casters according to claim 7 of the present invention , the vertical hole is formed to have a square cross section through the vertical axis on the same axis of the turning shaft, and substantially matches the shape of the vertical hole. The brake rod is inserted into the vertical hole so as to be movable up and down, and both are used to prevent rotation .
本発明の請求項7に係る複数キャスタのロック機構では、縦孔を旋回軸の同一軸芯上に上下に貫通して断面角形状に形成し、この縦孔の形状にほぼ合致して形成した制動ロッドをこの縦孔に上下動自在に挿通してこれら両者で回り止めをはかるようにしたことにより、制動ロッドはキャスタ本体に対して回り止めされるので、制動ロッド下端の旋回止め係合部は、下方に配置された車輪ロック部材の揺動端上側の凹凸部に確実に係合され、ロックが確実に行われる。 In the multiple caster locking mechanism according to the seventh aspect of the present invention , the vertical hole is vertically formed on the same axis of the turning shaft so as to have an angular cross section, and is formed substantially in accordance with the shape of the vertical hole. Since the brake rod is inserted into the vertical hole so as to be movable up and down, and both are prevented from rotating, the brake rod is prevented from rotating with respect to the caster body. Is securely engaged with the concavo-convex portion on the upper side of the rocking end of the wheel lock member disposed below, and the lock is reliably performed.
本発明に係る複数キャスタのロック機構は、被取付体に取り付けられた複数のキャスタをロックする複数キャスタのロック機構であって、被取付体底面の隅部に配置され、キャスタを被取付体に旋回自在に取り付ける取付部材と、車輪が回転可能に支持されるキャスタ本体に制動部材を変位可能に収容して一端を外部に突出させ、この制動部材を変位させてキャスタの旋回と車輪の回転とをロックまたはロック解除するキャスタロック手段と、同じ方向に一列に並んで配置される取付部材に軸芯同一で回動自在に設けられる軸と、これら軸に取り付けられ制動部材に当接して制動部材を動作させる動作部材と、異なる列の取付部材に設けられた軸間を連結し一方の列の軸の回動を他方の列の軸に同一方向で伝達する伝達リンクとを備え、軸に与えられる回動力を動作部材を介して制動部材に伝達する連動手段と、一端が軸に連結され、他端が外側に延長され、他端に外力が与えられると、軸を回動させる操作手段とを備えるとともに、キャスタ本体には、旋回軸側に旋回軸と同一軸芯上に上下に貫通される縦孔を形成し、車輪の内側には周方向に沿って凹凸部を形成して構成し、キャスタロック手段を、縦孔に上下動自在に挿通された制動ロッドと、制動ロッドの上端側に挿通されたピンと、制動ロッドとキャスタ本体との間に介在され制動ロッドを下方に付勢するばねと、制動ロッドの下端に設けられ下側に凹凸部が形成された旋回止め係合部と、一端がキャスタ本体に揺動可能に枢着さればねにより常時上方に付勢され、揺動端が旋回止め係合部の下方に延びる車輪ロック部材とを備え、この車輪ロック部材の揺動端上側には、上記旋回止め係合部と係合する凹凸部を形成し、下側には、車輪の周方向凹凸部に係脱自在に係合する回転止め係合部を設けて構成するとともに、制動ロッドに挿通されたピンの下方に、動作部材をピンを押し上げ可能に配置したので、すべてのキャスタを同時にかつ確実にロックまたはロック解除することができるとともに、構成を簡素化してコストダウンを図る効果がある。 A lock mechanism for a plurality of casters according to the present invention is a lock mechanism for a plurality of casters that locks a plurality of casters attached to a body to be mounted, and is disposed at a corner of the bottom surface of the body to be mounted. A mounting member that is pivotably mounted, a caster body that rotatably supports a wheel, a brake member that is displaceably accommodated, and one end projecting outside, and the brake member is displaced to turn the caster and rotate the wheel. Caster lock means for locking or unlocking the shaft, shafts provided on the mounting members arranged in a line in the same direction so as to be rotatable with the same axial center, and a braking member attached to these shafts and contacting the braking member And a transmission link for connecting the shafts provided in the mounting members of different rows and transmitting the rotation of the shafts of one row to the shafts of the other row in the same direction. Interlocking means for transmitting the obtained rotational force to the braking member via the operating member, and operating means for rotating the shaft when one end is connected to the shaft, the other end is extended outward, and an external force is applied to the other end Rutotomoni with the door, the caster body, a longitudinal hole is pierced vertically to the pivot axis on the same axis and formed on the pivot shaft side, the inner side of the wheel to form a concave-convex portion in the circumferential direction The caster lock means is arranged between the brake rod inserted into the vertical hole so as to be movable up and down, the pin inserted into the upper end side of the brake rod, and the brake rod and the caster body. A spring to be energized, a swivel engaging portion provided at the lower end of the brake rod and having a concavo-convex portion formed on the lower side, and one end pivotally attached to the caster body so as to be oscillated constantly by the spring. Wheel lock member whose moving end extends below the pivot stop engaging portion An uneven portion that engages with the anti-rotation engaging portion is formed on the upper side of the rocking end of the wheel lock member, and the lower side is removably engaged with the uneven portion on the circumferential direction of the wheel. Since the rotation stop engaging part is provided and the operation member is arranged below the pin inserted through the brake rod so that the pin can be pushed up , all casters can be locked or unlocked at the same time and securely. In addition, the structure can be simplified and the cost can be reduced.
家具底部の四隅に取り付けられた複数のキャスタを同時にロックまたはロック解除するロック機構の簡素化を図るという目的を、被取付体に取り付けられた複数のキャスタをロックする複数キャスタのロック機構であって、被取付体底面の隅部に配置され、キャスタを被取付体に旋回自在に取り付ける取付部材と、車輪が回転可能に支持されるキャスタ本体に制動ロッドを進退動自在に収容して一端を外部に突出させ、この制動ロッドを進退させてキャスタの旋回と車輪の回転とをロックまたはロック解除するキャスタロック機構と、同じ方向に一列に並んで配置される取付部材に軸芯同一で回動自在に設けられる軸と、これら軸に取り付けられ制動ロッドに当接して制動ロッドを動作させる動作部材と、異なる列の取付部材に設けられた軸間を連結し一方の列の軸の回動を他方の列の軸に同一方向で伝達する伝達リンクとを備え、軸に与えられる回動力を動作部材を介して制動ロッドに伝達するよう構成するとともに、一端が軸に連結され、他端が外側に延長され、他端に外力が与えられると、軸を回動させる操作具とを備えて構成したことにより実現した。 A lock mechanism for a plurality of casters that locks a plurality of casters attached to a body to be attached for the purpose of simplifying a lock mechanism for simultaneously locking or unlocking a plurality of casters attached to four corners of a furniture bottom. The mounting member is arranged at the corner of the bottom surface of the mounted body and pivotally mounts the caster to the mounted body, and the brake rod is housed in the caster body, which is rotatably supported by the wheel, so that one end is externally mounted. The caster lock mechanism that locks or unlocks the turning of the caster and the rotation of the wheel by projecting the brake rod forward and backward, and the mounting member arranged in a line in the same direction can rotate freely with the same axis Shafts mounted on the shafts, operating members that are attached to these shafts to contact the brake rods and operate the brake rods, and shafts provided on the mounting members in different rows And a transmission link that transmits the rotation of the shaft of one row to the shaft of the other row in the same direction, and configured to transmit the rotational force applied to the shaft to the brake rod via the operating member. This is realized by comprising an operating tool for rotating the shaft when one end is connected to the shaft, the other end is extended outward, and an external force is applied to the other end.
以下、図面に示す実施例により本発明を説明する。本発明の第1の実施例に係る複数キャスタのロック機構2は、図1に示すように、床頭台などの家具3の底部4に設けられる。家具3の底部4の四隅には、取付部材6(6FR、6FL、6RR、6RL、図3参照)を介してキャスタ5(5A〜5D)が内側に後退して取り付けられる。取付部材6は、キャスタ5を底部4に旋回自在に取り付けるようになっている。取付部材6は、底部4の前側に2個(取付部材6FR、6FL参照)で一列、後側に2個(取付部材6RR、6RL参照)で一列それぞれ取り付けられる。前後の異なる列に配置された取付部材6FR、6FLおよび6RR、6RLは、それぞれ前後で互いに向き合って配置されるようになっている(前側の左方取付部材6FLと後側の左方取付部材6RL、前側の右方取付部材6FRと後側の右方取付部材6RR参照)。 Hereinafter, the present invention will be described with reference to embodiments shown in the drawings. As shown in FIG. 1, the lock mechanism 2 for a plurality of casters according to the first embodiment of the present invention is provided on the bottom 4 of furniture 3 such as a floor head. The casters 5 (5A to 5D) are attached to the four corners of the bottom 4 of the furniture 3 by retreating them inward via attachment members 6 (6FR, 6FL, 6RR, 6RL, see FIG. 3). The attachment member 6 is configured to attach the caster 5 to the bottom portion 4 so as to be rotatable. Two attachment members 6 are attached to the front side of the bottom portion 4 in one row (see attachment members 6FR and 6FL) and two attachment members 6 in the rear side (see attachment members 6RR and 6RL). The attachment members 6FR, 6FL and 6RR, 6RL arranged in different rows in the front and rear are arranged to face each other in the front and rear (the front left attachment member 6FL and the rear left attachment member 6RL). , See the front right mounting member 6FR and the rear right mounting member 6RR).
キャスタ5は、双輪タイプのキャスタであって、図5および図6(A)、(B)に示すように、キャスタ本体10の左右両側に一対の車輪11が車軸12を介して回転可能に支持されて構成される。キャスタ本体10には、車軸12から進行方向前方側に偏心した位置に上下を貫通する貫通穴14が形成され、この貫通穴14内に旋回軸13が旋回自在に嵌合される。旋回軸13の上部にはねじ部13Aが形成され、その中間部にはこの旋回軸13を回転操作するフランジ部15が設けられる。このフランジ部15は、円形の両側を平坦に切り欠いた形状をしており、この平坦面15Aにスパナ等の工具を噛み合わせることができるようになっている。旋回軸13の下端は貫通穴14の下部開口から突出し、旋回軸13の小径部13Bにピン18が圧入され、キャスタ本体10からの抜け止めがなされている。左右の車輪11、11はキャスタ本体10側の面が環状に凹陥して形成され、この環状凹陥部の外側周面に沿って凹凸部17が形成される。 The caster 5 is a twin-wheel type caster, and as shown in FIGS. 5 and 6A and 6B, a pair of wheels 11 are rotatably supported on the left and right sides of the caster body 10 via an axle 12. Configured. The caster body 10 is formed with a through hole 14 penetrating vertically at a position eccentric to the front side in the traveling direction from the axle 12, and the turning shaft 13 is rotatably fitted in the through hole 14. A screw portion 13A is formed on the upper portion of the pivot shaft 13, and a flange portion 15 for rotating the pivot shaft 13 is provided at an intermediate portion thereof. The flange portion 15 has a shape in which both sides of a circle are cut out flat, and a tool such as a spanner can be engaged with the flat surface 15A. The lower end of the pivot shaft 13 protrudes from the lower opening of the through hole 14, and a pin 18 is press-fitted into the small diameter portion 13 </ b> B of the pivot shaft 13 to prevent the caster body 10 from coming off. The left and right wheels 11, 11 are formed such that the surface on the caster body 10 side is annularly recessed, and an uneven portion 17 is formed along the outer peripheral surface of the annular recessed portion.
この旋回軸13には、取付部材6が取り付けられる。取付部材6は、図4および図5に示すように、底部6Aとこの底部6Aの左右から立ち上がる左右両壁6B、6Cとを有する断面コ字状本体と、各壁6B、6C上端を外側に折曲して形成され家具3の底部4への取付穴6Dが穿設された折曲部6Eとを備えて構成される。取付部材6は、ねじにより折曲部6Eが家具3の底部4に取り付けられるようになっている。取付部材6の底部6Aには、旋回軸13のねじ部13Aに遊挿される円孔6Hが、左右両壁6B、6Cには、互いに向き合って貫通される貫通孔6G、6Gが円孔6Hより後方側にそれぞれ形成される。取付部材6は、旋回軸13のねじ部13Aを円孔6Hに挿通して底部6Aをフランジ部15に載せてねじ部13Aにナット16を螺入すると、ナット16とフランジ部15間に挟着されるようになっている。こうして、取付部材6は、旋回軸13と一体動するようになっている。このため、取付部材6が家具3の底部4に取り付けられると、キャスタ5は取付部材6に対して旋回するようなっている。キャスタ5は、図3に示すように、家具3の底部4の四隅に取付部材6FR、6FL、6RR、6RLを介して取り付けられる。 An attachment member 6 is attached to the turning shaft 13. As shown in FIGS. 4 and 5, the mounting member 6 has a U-shaped body having a bottom portion 6A and left and right walls 6B and 6C rising from the left and right sides of the bottom portion 6A, and the upper ends of the walls 6B and 6C outward. And a bent portion 6E formed by bending and having a mounting hole 6D formed in the bottom 4 of the furniture 3. As for the attachment member 6, the bending part 6E is attached to the bottom part 4 of the furniture 3 with a screw. A circular hole 6H that is loosely inserted into the threaded portion 13A of the pivot shaft 13 is formed in the bottom portion 6A of the mounting member 6, and through holes 6G and 6G that are opposed to each other and penetrate the left and right walls 6B and 6C from the circular hole 6H. Each is formed on the rear side. The attachment member 6 is sandwiched between the nut 16 and the flange portion 15 when the screw portion 13A of the turning shaft 13 is inserted into the circular hole 6H, the bottom portion 6A is placed on the flange portion 15 and the nut 16 is screwed into the screw portion 13A. It has come to be. Thus, the attachment member 6 moves integrally with the turning shaft 13. For this reason, when the attachment member 6 is attached to the bottom portion 4 of the furniture 3, the caster 5 rotates with respect to the attachment member 6. As shown in FIG. 3, the casters 5 are attached to the four corners of the bottom 4 of the furniture 3 via attachment members 6FR, 6FL, 6RR, and 6RL.
キャスタ5には、図5および図6の(A)、(B)に示すように、旋回軸13の旋回と車輪11の回転とを同時にロックするキャスタロック機構(キャスタロック手段)20が設けられる。キャスタロック機構20は、旋回軸13に同一軸芯上に上下に貫通される断面正六角形状の縦孔21(図6の(A)参照)が形成され、この縦孔21には、制動ロッド(制動部材)22が上下動自在に挿通されるようになっている。制動ロッド22の外面は、縦孔21の形状にほぼ合致して形成され(図6の(C)参照)、これら両者で回り止めが図られるとともに上下動可能な構造となっている。この制動ロッド22の上端は、縦孔21の上端開口から突出し、この上端には、円板状の当接部材23が取り付けられる。この当接部材23と旋回軸13上端面との間には、制動ロッド22を常時上方に弾発付勢するばね24が設けられる。制動ロッド22の下端は、縦孔21の下端開口から突出し、突出端には、旋回止め係合部25が設けられる。旋回止め係合部25は、円筒状本体の下側に周方向に沿って凹凸部26が形成されるようになっている。 As shown in FIGS. 5 and 6 (A) and (B), the caster 5 is provided with a caster lock mechanism (caster lock means) 20 that simultaneously locks the turning of the turning shaft 13 and the rotation of the wheel 11. . The caster lock mechanism 20 is formed with a vertical hole 21 (see FIG. 6A) having a regular hexagonal cross section that is vertically penetrated on the same axis as the pivot shaft 13. A (braking member) 22 is inserted so as to be movable up and down. The outer surface of the brake rod 22 is formed so as to substantially match the shape of the vertical hole 21 (see FIG. 6C). The upper end of the brake rod 22 protrudes from the upper end opening of the vertical hole 21, and a disc-shaped contact member 23 is attached to the upper end. A spring 24 is provided between the contact member 23 and the upper end surface of the pivot shaft 13 to elastically bias the brake rod 22 upward. The lower end of the brake rod 22 protrudes from the lower end opening of the vertical hole 21, and a turning stop engaging portion 25 is provided at the protruding end. The anti-rotation engaging portion 25 is configured such that an uneven portion 26 is formed along the circumferential direction on the lower side of the cylindrical main body.
キャスタ本体10には、車輪ロック部材30が設けられる。車輪ロック部材30は、一端がキャスタ本体10の後部にピン28により揺動可能に枢着され、ばね27により常時上方に付勢されるとともに、前方側の揺動端31が旋回止め係合部25の下方に延びるようになっている。車輪ロック部材30の揺動端31の上面には、旋回止め係合部25の凹凸部26と係合する凹凸部32が形成される。車輪ロック部材30の下側には、車輪11、11の周方向凹凸部17に係脱自在に係合する回転止め係合部33が設けられる。回転止め係合部33は、左右両輪11、11の周方向凹凸部17に係合するようアーム状の車輪ロック部材30の下側に直角に取り付けられ、左右に延びる両端に爪部が形成されるようになっている。このようにキャスタロック機構20は、制動ロッド22、旋回止め係合部25、車輪ロック部材30、凹凸部17、26、32、33を備えて構成される。 A wheel lock member 30 is provided on the caster body 10. One end of the wheel lock member 30 is pivotally attached to the rear part of the caster body 10 by a pin 28 so as to be swingable. The wheel lock member 30 is always urged upward by a spring 27, and the swing end 31 on the front side is an anti-rotation engaging portion. 25 extends downward. On the upper surface of the swing end 31 of the wheel lock member 30, an uneven portion 32 that engages with the uneven portion 26 of the anti-rotation engaging portion 25 is formed. On the lower side of the wheel lock member 30, a rotation stop engaging portion 33 that is detachably engaged with the circumferential uneven portion 17 of the wheels 11, 11 is provided. The anti-rotation engagement portion 33 is attached at a right angle to the lower side of the arm-shaped wheel lock member 30 so as to engage with the circumferential concavo-convex portion 17 of the left and right wheels 11, 11, and claw portions are formed at both ends extending left and right. It has become so. As described above, the caster lock mechanism 20 is configured to include the brake rod 22, the anti-rotation engagement portion 25, the wheel lock member 30, and the uneven portions 17, 26, 32, and 33.
キャスタロック機構20は、当接部材23が外力によりばね24の弾発力に抗して下方へ押し下げられ、制動ロッド22が下方に変位すると、旋回止め係合部25の下側凹凸部26が車輪ロック部材30の揺動端上面の凹凸部32に係合して旋回がロックされるとともに、車輪ロック部材30は旋回止め係合部25の降下により揺動端凹凸部32が旋回止め係合部25に係合した状態でばね27の付勢力に抗して下方に押し下げられ、回転止め係合部33が車輪の周方向凹凸部17に係合して車輪11の回転がロックされるようになっている。当接部材23への外力が失われると、当接部材23はばね24の弾発力により押し上げられ制動ロッド22は上方に変位し、制動ロッド22下端の旋回止め係合部25は上方に変位する。すると、旋回止め係合部25は車輪ロック部材30の揺動端凹凸部32との係合が解かれ旋回ロックが解除される。同時に、車輪ロック部材30は旋回止め係合部25が上方に変位するので、ばね27により上方に弾発復帰され、回転止め係合部33は車輪11の周方向凹凸部17との係合が解かれ、車輪の回転ロックが解除されるようになっている。 When the abutment member 23 is pushed downward against the elastic force of the spring 24 by an external force and the brake rod 22 is displaced downward, the caster lock mechanism 20 causes the lower uneven portion 26 of the anti-rotation engagement portion 25 to be moved. The wheel lock member 30 engages with the concavo-convex portion 32 on the upper surface of the oscillating end to lock the turning, and the wheel lock member 30 descends the anti-rotation engaging portion 25 so that the oscillating end concavo-convex portion 32 engages with the anti-rotation. It is pushed down against the urging force of the spring 27 in the state of being engaged with the portion 25, so that the rotation stop engaging portion 33 is engaged with the circumferential uneven portion 17 of the wheel and the rotation of the wheel 11 is locked. It has become. When the external force on the contact member 23 is lost, the contact member 23 is pushed up by the elastic force of the spring 24, the brake rod 22 is displaced upward, and the anti-rotation engaging portion 25 at the lower end of the brake rod 22 is displaced upward. To do. Then, the turning stop engaging portion 25 is disengaged from the rocking end uneven portion 32 of the wheel lock member 30 and the turning lock is released. At the same time, since the anti-rotation engaging portion 25 is displaced upward, the wheel lock member 30 is elastically returned upward by the spring 27, and the anti-rotation engaging portion 33 is engaged with the circumferential uneven portion 17 of the wheel 11. It is unlocked and the wheel rotation lock is released.
ところで、本実施例に係る複数キャスタのロック機構2では、家具3の底部4の四隅のうち、前方側に取り付けられた左右の両取付部材6FL、6FRには、これら両取付部材6FL、6FR間を連結し、摺動材43を介して貫通孔6Gに回動自在に支持される1本の軸(連動手段)40が設けられる。また、家具3の底部4の四隅のうち、後方側に取り付けられた左右の両取付部材6RL、6RRのうち、左側の取付部材6RLには、軸(連動手段)41Aが、右側の取付部材6RRには、軸(連動手段)41Bがそれぞれ設けられ、摺動材43を介して貫通孔6Gに回動自在に支持されるようになっている。これら後方側の両軸41A、41Bは互いに軸芯を合致させて配置される。これら後方側の軸41A、41Bの内側端部41Aa、41Baはそれぞれ、取付部材6RL、6RRから突出するようになっている。前方側の軸40と後方側の軸41A、41Bとはそれぞれ、軸芯を左右方向に向けて配置される。すなわち、前方側の軸40に対し、後方側の軸芯同一の両軸41A、41Bは平行に配置される。また、これら軸40、41A、41Bは、貫通孔6Gに回動自在に配設されているので、取付部材6FL、6FR、6RL、6RRに形成された円孔6Hより後方側に配置される。すなわち、キャスタ本体10の旋回軸13から上方に突出する制動ロッド22が、各軸40、41A、41Bに対して前方側に配置されるようになっている。軸40、41A、41Bは、所定の強度を確保できるものであれば、断面円形の丸棒状であってもよいし断面角形の角棒状であってもよい。 By the way, in the lock mechanism 2 of a plurality of casters according to the present embodiment, the left and right mounting members 6FL and 6FR mounted on the front side among the four corners of the bottom portion 4 of the furniture 3 are arranged between the both mounting members 6FL and 6FR. And a single shaft (interlocking means) 40 that is rotatably supported by the through hole 6G via the sliding member 43 is provided. Of the four corners of the bottom 4 of the furniture 3, of the left and right attachment members 6RL and 6RR attached to the rear side, the left attachment member 6RL has a shaft (interlocking means) 41A and a right attachment member 6RR. Are provided with shafts (interlocking means) 41B, which are rotatably supported by the through hole 6G via the sliding member 43. These rear shafts 41A and 41B are arranged with their axes aligned with each other. The inner end portions 41Aa and 41Ba of the rear shafts 41A and 41B protrude from the attachment members 6RL and 6RR, respectively. The front side shaft 40 and the rear side shafts 41A and 41B are arranged with their axial centers facing in the left-right direction. That is, both shafts 41A and 41B having the same axial center on the rear side are arranged in parallel to the shaft 40 on the front side. Further, since these shafts 40, 41A, 41B are rotatably disposed in the through holes 6G, they are disposed on the rear side of the circular holes 6H formed in the attachment members 6FL, 6FR, 6RL, 6RR. That is, the brake rod 22 protruding upward from the pivot shaft 13 of the caster body 10 is arranged on the front side with respect to the respective shafts 40, 41A, 41B. The shafts 40, 41 </ b> A, and 41 </ b> B may have a round bar shape with a circular cross section or a square bar shape with a square cross section as long as a predetermined strength can be secured.
前方側の軸40には、操作具(操作手段)50が連結される。操作具50は、パイプをコ字状に折曲して形成され、分岐端52、53が前方側の軸40にそれぞれ連結され、分岐端52、53から延びる操作部51が、手や足で操作しやすいように家具3の底部4から外側に突出して露出している。この操作具50は、操作部51に外力が与えられると、軸40を回動させるようになっている。操作具50は、後述する操作具ロック機構により揺動範囲が規制されて上下の揺動端位置でロックされる。 An operation tool (operation means) 50 is connected to the shaft 40 on the front side. The operation tool 50 is formed by bending a pipe into a U-shape, branch ends 52 and 53 are connected to the shaft 40 on the front side, and an operation unit 51 extending from the branch ends 52 and 53 is formed by hands or feet. For easy operation, the furniture 3 is exposed by protruding outward from the bottom 4. The operating tool 50 rotates the shaft 40 when an external force is applied to the operating portion 51. The operating tool 50 is locked at the upper and lower swing end positions with the swing range restricted by an operating tool lock mechanism described later.
前後側の軸40および41A、41Bには、前方側軸40と後側の左方軸41A間を連結する左側伝達リンク(連動手段)54が、また、前方側軸40と後側の右方軸41B間を連結する右側伝達リンク(連動手段)55がそれぞれ設けられる(図3参照)。左右の伝達リンク54、55はそれぞれ、前方側の軸40にそれぞれ取り付けられた支持部材56、56と後方側の軸41A、41Bにそれぞれ取り付けられた支持部材57、57との間を連結してピンで結合され、操作具50の操作により付与された前方側軸40の回動力を後方側の軸41A、41Bに同一方向で伝達するようになっている。 The front and rear shafts 40 and 41A, 41B have a left transmission link (interlocking means) 54 for connecting the front shaft 40 and the rear left shaft 41A, and the front shaft 40 and the rear right shaft. Right transmission links (interlocking means) 55 for connecting the shafts 41B are provided (see FIG. 3). The left and right transmission links 54 and 55 respectively connect the support members 56 and 56 attached to the front shaft 40 and the support members 57 and 57 attached to the rear shafts 41A and 41B, respectively. The rotational force of the front side shaft 40 which is coupled by a pin and is given by the operation of the operation tool 50 is transmitted to the rear side shafts 41A and 41B in the same direction.
各軸40、41A、41Bにはそれぞれ、軸40、41A、41Bの回動に応じて制動ロッド22を下方に動作させる動作部材42(42A〜42D)(連動手段)が設けられる。動作部材42は、図5に示すように、一端の基部44が取付部材6の内側でこれら各軸40、41A、41Bに固定され、他端丸棒部45が軸40、41A、41Bと一体に揺動して制動ロッド22の当接部材23に当接するようになっている。このため、操作具50の操作部51が押し下げられると、前方側の軸40が一体動する動作部材42の丸棒部45を当接部材23に当接させて押し下げる方向(図5の軸40、41A、41Bの反時計回り方向参照)に回り、この回動力は伝達リンク54、55を介して後方側の軸41A、41Bに伝達される。回動力が伝達された後方側の軸41A、41Bも一体動する動作部材42の丸棒部45を当接部材23に当接させて押し下げる方向に回るようになっている。こうして、操作部51が押し下げ操作されると、各軸40、41A、41Bが回動してこれら各軸40、41A、41Bに固定された動作部材42の他端丸棒部45を当接部材23に当てて、さらに、ばね24の弾発力に抗して下方へ押し下げると、制動ロッド22は下方に押し下げられ、キャスタ5の旋回がロックされるとともに、車輪11の回転もロックされるようになっている。操作具50の操作部51から押し下げ力が失われると、制動ロッド22はばね24の弾発力により上方へ変位して動作部材42を押し上げ、各軸40、41A、41Bを逆の方向(図5の軸40、40Bの時計回り方向参照)に回し、操作部51を元の位置に復帰させるようになっている。そして、制動ロッド22が上方端位置に復帰することにより、キャスタ5の旋回ロックが解除されるとともに、車輪11の回転ロックも解除されるようになっている。このように、本実施例では、軸40、41A、41Bの軸芯を左右方向に合致させて配置し、この軸芯に対し、制動ロッド22を前方側に配するとともに、操作具50を軸芯から前方側に配置している。このため、軸芯を支点、操作部51を力点、制動ロッド22を作用点とする梃子が形成され、制動ロッド22は支点(軸芯)と力点(操作部51)との間に配置されるので、操作部51のロック操作時(押し下げ操作時)、操作方向と同じ方向に動作部材42の丸棒部25から押圧力を受けるようになっている。 Each shaft 40, 41A, 41B is provided with an operation member 42 (42A-42D) (interlocking means) for moving the brake rod 22 downward in accordance with the rotation of the shaft 40, 41A, 41B. As shown in FIG. 5, the operating member 42 has a base 44 at one end fixed to the shafts 40, 41 </ b> A, 41 </ b> B inside the mounting member 6, and a round bar 45 at the other end integrated with the shafts 40, 41 </ b> A, 41 </ b> B. And is brought into contact with the contact member 23 of the brake rod 22. For this reason, when the operation part 51 of the operation tool 50 is pushed down, the round bar part 45 of the operation member 42 with which the front shaft 40 moves integrally is brought into contact with the contact member 23 and pushed down (the shaft 40 in FIG. 5). , 41A, 41B (refer to the counterclockwise direction), and this rotational force is transmitted to the rear shafts 41A, 41B via the transmission links 54, 55. The rear shafts 41A and 41B to which the rotational force is transmitted also rotate in a direction in which the round bar portion 45 of the operation member 42 that moves integrally is brought into contact with the contact member 23 and pushed down. Thus, when the operation portion 51 is pushed down, the shafts 40, 41A, 41B rotate and the other end round bar portion 45 of the operation member 42 fixed to the shafts 40, 41A, 41B is brought into contact with the contact member. When the brake rod 22 is further pushed down against the spring force of the spring 24, the brake rod 22 is pushed down so that the turning of the caster 5 is locked and the rotation of the wheel 11 is also locked. It has become. When the push-down force is lost from the operation portion 51 of the operation tool 50, the brake rod 22 is displaced upward by the elastic force of the spring 24 and pushes up the operation member 42, so that each shaft 40, 41A, 41B is moved in the opposite direction (see FIG. 5 (see the clockwise direction of the shafts 40 and 40B) to return the operation unit 51 to the original position. Then, when the brake rod 22 returns to the upper end position, the turning lock of the caster 5 is released and the rotation lock of the wheel 11 is also released. As described above, in this embodiment, the shaft cores of the shafts 40, 41A, and 41B are arranged so as to be aligned in the left-right direction, the brake rod 22 is disposed on the front side with respect to the shaft core, and the operation tool 50 is pivoted. It is arranged on the front side from the core. For this reason, a lever is formed with the shaft core as a fulcrum, the operation part 51 as a power point, and the brake rod 22 as an action point, and the brake rod 22 is arranged between the fulcrum (axis core) and the force point (operation part 51). Therefore, when the operation portion 51 is locked (when the push-down operation is performed), the pressing force is received from the round bar portion 25 of the operation member 42 in the same direction as the operation direction.
家具3と操作具50とには、図3および図8に示すように、操作具50の分岐端52、53と前方側の軸40とがそれぞれ連結される部位に、操作具50の上下方向両揺動端位置をそれぞれ規制し、操作部51を各揺動端位置で保持する操作具ロック機構60が設けられる。この操作具ロック機構60は、家具3の底部4に取り付けられ、内部を前方側軸40が貫通し、操作具50の連結側端部52、53を収容する支持具61を備えている。支持具61は、左右の両側壁61A、61Bと、これら両側壁61A、61Bに接続された後壁61Cと、左右の両側壁61A、61B上端を外側に折曲して形成され家具3の底部4への取付穴61Dが穿設された折曲部61E、61Fとを備えて構成される。支持具61は、ねじにより折曲部61E、61Fが家具3の底部4に取り付けられるようになっている。 As shown in FIG. 3 and FIG. 8, the furniture 3 and the operation tool 50 are arranged in the vertical direction of the operation tool 50 at portions where the branch ends 52 and 53 of the operation tool 50 and the shaft 40 on the front side are respectively connected. An operating tool lock mechanism 60 that restricts both the swing end positions and holds the operation unit 51 at each swing end position is provided. The operation tool lock mechanism 60 is attached to the bottom portion 4 of the furniture 3, and includes a support tool 61 through which the front side shaft 40 penetrates and accommodates the connection side end portions 52 and 53 of the operation tool 50. The support 61 is formed by bending the left and right side walls 61A and 61B, the rear wall 61C connected to the both side walls 61A and 61B, and the upper ends of the left and right side walls 61A and 61B outward. 4 is provided with bent portions 61E and 61F in which attachment holes 61D to 4 are formed. As for the support tool 61, the bending parts 61E and 61F are attached to the bottom part 4 of the furniture 3 with a screw.
操作具50の連結側端部、すなわち、分岐端52、53にはそれぞれ、外縁に軸40に対して周方向位置を異ならせて形成された凹溝62A、62Bを有する係合プレート62が取り付けられる。支持具61の左右両壁61A、61Bには、一対の長孔63、63が互いに向き合って形成され、これら長孔63、63に係合ピン64が前後動可能に挿通される。係合ピン64は係合プレート62の外縁に臨み、ばね65を介して係合プレート62のいずれか一方の凹溝62A、62Bに弾発付勢されるようになっている。すなわち、操作具50の操作部51が上方位置にあるとき、係合ピン64は係合プレート62の上側凹溝62Aに圧接されて、操作具50を上方端位置に保持するようになっている。このとき、各軸40、41A、41Bの動作部材42の丸棒部45は上方位置に保持されるので、制動ロッド22はばね24により上方位置に付勢され、キャスタ5は旋回自在に、車輪11は回転自在の状態となっている。 Engagement plates 62 having concave grooves 62A and 62B formed on the outer edges at different circumferential positions with respect to the shaft 40 are attached to the connection side ends of the operation tool 50, that is, the branch ends 52 and 53, respectively. It is done. A pair of long holes 63, 63 are formed in the left and right walls 61A, 61B of the support 61 so as to face each other, and an engagement pin 64 is inserted into the long holes 63, 63 so as to be movable back and forth. The engagement pin 64 faces the outer edge of the engagement plate 62 and is elastically biased to one of the concave grooves 62A and 62B of the engagement plate 62 via a spring 65. That is, when the operation portion 51 of the operation tool 50 is in the upper position, the engagement pin 64 is pressed against the upper concave groove 62A of the engagement plate 62 to hold the operation tool 50 in the upper end position. . At this time, since the round bar portion 45 of the operation member 42 of each shaft 40, 41A, 41B is held at the upper position, the brake rod 22 is biased to the upper position by the spring 24, and the caster 5 is pivotable. 11 is in a freely rotatable state.
操作具50の操作部51が操作されて下方位置に押し下げられると、係合プレート62は分岐端52、53と一体に軸40を中心に回り、係合ピン64はばね65の弾発力を受けたまま凹溝62Aから離脱して係合プレート62の外縁に沿って一旦後方側へ押しやられ、下側の凹溝62Bに嵌り込むと、ばね65により弾発付勢される。こうして、操作具50は、係合ピン64が下側凹溝62Bに圧接されると、下方端位置で保持される。このとき、各軸40、41A、41Bの動作部材42の丸棒部45は操作部51の押し下げに応じて制動ロッド22を下方に押し下げてそのまま下方位置に保持されるので、キャスタ5は旋回がロックされ、車輪11は回転がロックされた状態となる。 When the operating portion 51 of the operating tool 50 is operated and pushed down to the lower position, the engaging plate 62 rotates around the shaft 40 integrally with the branch ends 52 and 53, and the engaging pin 64 applies the elastic force of the spring 65. While being received, it is separated from the concave groove 62A and once pushed rearward along the outer edge of the engagement plate 62, and when it is fitted into the lower concave groove 62B, it is elastically biased by the spring 65. Thus, the operating tool 50 is held at the lower end position when the engaging pin 64 is pressed into the lower concave groove 62B. At this time, the round bar portion 45 of the operation member 42 of each shaft 40, 41A, 41B pushes down the brake rod 22 in accordance with the depression of the operation portion 51 and is held at the lower position as it is, so that the caster 5 is turned. The wheel 11 is locked and the rotation is locked.
このように、操作具ロック機構60は、操作具50の操作部51を押し下げ、操作部51が下方の揺動端位置に達すると、操作具50はそれ以上の変位が規制されて下方の揺動端位置で保持されるようになっている。このとき、すべてのキャスタ5A〜5Dは旋回と車輪11の回転とがロック状態となる。操作具50の操作部51を引き上げ、操作部51が上方の揺動端位置に達すると、操作具50はそれ以上の変位が規制されて上方の揺動端位置で保持されるようになっている。このとき、すべてのキャスタ5A〜5Dは旋回ロックが解除されるとともに、車輪11の回転ロックが解除される。 As described above, the operation tool locking mechanism 60 pushes down the operation portion 51 of the operation tool 50, and when the operation portion 51 reaches the lower swing end position, the operation tool 50 is restricted from being further displaced by the lower displacement position. It is held at the moving end position. At this time, all the casters 5 </ b> A to 5 </ b> D are in a locked state for turning and rotation of the wheels 11. When the operation unit 51 of the operation tool 50 is pulled up and the operation unit 51 reaches the upper swing end position, the operation tool 50 is held at the upper swing end position by restricting further displacement. Yes. At this time, all the casters 5A to 5D are released from the turning lock and the rotation lock of the wheel 11 is released.
次に、上記第1の実施例に係る複数キャスタのロック機構2の作用について説明する。上記実施例に係る複数キャスタのロック機構2では、操作具50の操作部51を押し下げ操作すると、前方側の軸40が回動するとともに、この回動力が伝達リンク54、55を通じて後方側の軸41A、41Bに伝達され、これら後方側の軸41A、41Bも前方側の軸40と同一方向で回動する。これら軸40、41A、41Bの回動と一体に動作部材42が動作し、丸棒部45が当接部材23をばね24の弾発力に抗して押し下げると、制動ロッド22を下端位置に変位させる。操作具50は操作具ロック機構60により下方の揺動端位置で保持されるので、制動ロッド22は下端位置に保持されたままとなる。このため、旋回止め係合部25が車輪ロック部材30の揺動端上側の凹凸部32に係合して旋回がロックされ、車輪のロック部材30は旋回止め係合部25の降下により凹凸部32が旋回止め係合部25に係合した状態で下方に押し下げられ、回転止め係合部33が車輪11の周方向凹凸部17に係合して車輪11の回転がロックされる。このため、操作具50の操作部51を操作するだけで、家具3の底部4に取り付けられたすべてのキャスタ5の旋回と車輪の回転とが同時にロックされる。 Next, the operation of the multiple caster locking mechanism 2 according to the first embodiment will be described. In the lock mechanism 2 for a plurality of casters according to the above-described embodiment, when the operation unit 51 of the operation tool 50 is pushed down, the front shaft 40 is rotated, and this rotational force is transmitted through the transmission links 54 and 55 to the rear shaft. The rear shafts 41A and 41B are also rotated in the same direction as the front shaft 40. When the operation member 42 operates integrally with the rotation of the shafts 40, 41A, 41B, and the round bar portion 45 pushes down the contact member 23 against the elastic force of the spring 24, the brake rod 22 is moved to the lower end position. Displace. Since the operating tool 50 is held at the lower swing end position by the operating tool lock mechanism 60, the brake rod 22 remains held at the lower end position. For this reason, the turning stop engaging portion 25 engages with the uneven portion 32 on the upper end of the rocking end of the wheel locking member 30 to lock the turning, and the wheel locking member 30 is moved into the uneven portion by the lowering of the turning stop engaging portion 25. In the state where 32 is engaged with the anti-rotation engaging portion 25, it is pushed downward, and the anti-rotation engaging portion 33 is engaged with the circumferential uneven portion 17 of the wheel 11 to lock the rotation of the wheel 11. For this reason, only by operating the operation part 51 of the operation tool 50, turning of all the casters 5 attached to the bottom part 4 of the furniture 3 and rotation of a wheel are locked simultaneously.
次に、操作部51が下方の揺動端位置でロックされている状態から、この操作部51を引き上げると、前方側の軸40が逆方向に回動するとともに、この逆方向の回動力が伝達リンク54、55を通じて後方側の軸41A、41Bに伝達されこれら後方側の軸41A、41Bも前方側の軸40と同一方向で逆に回動する。これら軸40、41A、41Bの回動と一体に動作部材42が動作し、丸棒部45が当接部材23から上方に変位し、当接部材23はばね24の弾発力により押し上げられ、制動ロッド22は上端位置に保持される。操作具50は操作具ロック機構60により上方の揺動端位置で保持されるので、制動ロッド22は上端位置に保持されたままとなる。旋回止め係合部25は上方に変位して車輪ロック部材30の揺動端上側の凹凸部32との係合が解かれ旋回ロックが解除される。同時に、車輪のロック部材30は旋回止め係合部25が上方に変位するので、ばね27により上方に弾発復帰され、回転止め係合部33は車輪11の周方向凹凸部17との係合が解かれ、車輪の回転ロックが解除される。このため、操作具50の操作部51を操作するだけで、家具3の底部4に取り付けられたすべてのキャスタ5の旋回ロックと車輪の回転ロックとが同時に解除される。 Next, when the operation portion 51 is locked at the lower swing end position, when the operation portion 51 is pulled up, the front shaft 40 rotates in the reverse direction, and the rotational force in the reverse direction is increased. The rear shafts 41A and 41B are transmitted to the rear shafts 41A and 41B through the transmission links 54 and 55, and the rear shafts 41A and 41B also rotate in the same direction as the front shaft 40. The operation member 42 operates integrally with the rotation of the shafts 40, 41A, 41B, the round bar portion 45 is displaced upward from the contact member 23, and the contact member 23 is pushed up by the elastic force of the spring 24, The brake rod 22 is held at the upper end position. Since the operating tool 50 is held at the upper swing end position by the operating tool lock mechanism 60, the brake rod 22 remains held at the upper end position. The turning stop engaging portion 25 is displaced upward, the engagement with the concavo-convex portion 32 on the upper swing end of the wheel lock member 30 is released, and the turning lock is released. At the same time, the wheel locking member 30 is displaced upward by the spring stop engaging portion 25, so that it is elastically returned upward by the spring 27, and the rotation stop engaging portion 33 is engaged with the circumferential uneven portion 17 of the wheel 11. Is released and the wheel rotation lock is released. For this reason, only by operating the operation part 51 of the operation tool 50, the turning lock of all the casters 5 attached to the bottom part 4 of the furniture 3 and the rotation lock of the wheel are simultaneously released.
図10は、上記第1の実施例に係る複数キャスタのロック機構の一変形例を示すもので、上記第1の実施例では、前方側の軸を1本の軸40で構成しているのに対し、この前側の軸を2つに分割した点が異なっている外は、ほぼ上記第1の実施例と同一の構成を備えている。すなわち、この第1の実施例の変形例に係る複数キャスタのロック機構は、前方側に取り付けられた左右の両取付部材6FL、6FRにはそれぞれ、回動自在に支持される軸40A、40Bを分割して設け、これら軸40A、40Bの内側端部には、操作具50の分岐端52、53がそれぞれ連結されるようになっている。左側の前方軸40Aの回動力は左側伝達リンク54を通じ、右側の前方軸40Bの回動力は右側伝達リンク55を通じてそれぞれ後方側の軸41A、41Bに伝達されるようになっている。このため、操作部51に外力が与えられると、軸40A、40Bを同時に同じ方向に回動させるようになっている。係る構成とすることにより軸寸法を短縮してコストダウンを図ることができる。 FIG. 10 shows a modified example of the locking mechanism for a plurality of casters according to the first embodiment. In the first embodiment, the front shaft is constituted by a single shaft 40. On the other hand, it has substantially the same configuration as the first embodiment except that the front shaft is split into two. That is, in the lock mechanism of the plurality of casters according to the modification of the first embodiment, the left and right attachment members 6FL and 6FR attached to the front side are respectively provided with shafts 40A and 40B that are rotatably supported. The branch ends 52 and 53 of the operating tool 50 are connected to the inner ends of the shafts 40A and 40B, respectively. The rotational force of the left front shaft 40A is transmitted to the rear shafts 41A and 41B through the left transmission link 54, and the rotational force of the right front shaft 40B is transmitted to the rear shafts 41A and 41B through the right transmission link 55, respectively. For this reason, when an external force is applied to the operation unit 51, the shafts 40A and 40B are simultaneously rotated in the same direction. With such a configuration, the shaft dimension can be shortened and the cost can be reduced.
次に、本発明の第2の実施例に係る複数キャスタのロック機構102について、図11および図12に基づいて説明する。本発明の第2の実施例に係る複数キャスタのロック機構102は、上記第1の実施例に係る複数キャスタのロック機構2が、後方側の軸41A、41Bを取付部材6RR、6RL毎に分割して構成しているのに対し、前方側の軸140と後方側の軸141とをそれぞれ1本で構成している点、操作具150を踏み板部151を備えたペダルから構成した点、伝達リンク154を1本で構成した点が異なっている外は、上記第1の実施例とほぼ同一の構成を備えている。すなわち、第2の実施例に係る複数キャスタのロック機構102では、前方側の両取付部材6FR、6FLには、これら両取付部材6FR、6FL間を連結し左右方向に貫通して回動自在に支持される前側軸140が、後方側の両取付部材6RR、6RLには、同じくこれら両取付部材6RR、6RL間を連結し左右方向に貫通して回動自在に支持される後側軸141がそれぞれ設けられる。これら前後の軸140、141にはそれぞれ、支持部材156、157が取り付けられ、これら支持部材156、157間に伝達リンク154がピンで連結されるようになっている。この伝達リンク154は、前側軸140の回動力を後側軸141に同一の方向で伝達するようになっている。前側軸140には、操作具150が連結される。操作具150は、一端基部が前側軸140に連結され、基部から延びる他端踏み板部151が足で操作しやすいように家具3の底部4から外側に突出して露出するようになっている。この操作具150は、踏み板部151に下方への押圧力が加えられると、前側軸140を回動させるとともに、伝達リンク154を通じて、後側軸141に前側軸140の回動力を同一方向で伝達するようになっている。操作具150と家具3とには、上記第1の実施例と同様に、操作具ロック機構60が設けられる。 Next, a lock mechanism 102 for a plurality of casters according to a second embodiment of the present invention will be described with reference to FIGS. The multi-caster locking mechanism 102 according to the second embodiment of the present invention is such that the multi-caster locking mechanism 2 according to the first embodiment divides the rear shafts 41A and 41B into mounting members 6RR and 6RL. In contrast, the front shaft 140 and the rear shaft 141 are each composed of one piece, the operation tool 150 is composed of a pedal having a tread plate portion 151, and transmission. Except for the point that the link 154 is configured by one, the configuration is almost the same as that of the first embodiment. That is, in the multiple caster locking mechanism 102 according to the second embodiment, both the front mounting members 6FR, 6FL are connected between the two mounting members 6FR, 6FL and penetrated in the left-right direction so as to be rotatable. The front shaft 140 to be supported has both the rear mounting members 6RR and 6RL connected to the rear mounting shafts 6RR and 6RL. Each is provided. Support members 156 and 157 are attached to the front and rear shafts 140 and 141, respectively, and a transmission link 154 is connected between the support members 156 and 157 with pins. The transmission link 154 transmits the rotational force of the front shaft 140 to the rear shaft 141 in the same direction. An operation tool 150 is connected to the front shaft 140. The operation tool 150 has one end base connected to the front shaft 140 and is exposed to protrude outward from the bottom 4 of the furniture 3 so that the other end tread plate 151 extending from the base can be easily operated with a foot. When a downward pressing force is applied to the tread plate 151, the operation tool 150 rotates the front shaft 140 and transmits the rotational force of the front shaft 140 to the rear shaft 141 in the same direction through the transmission link 154. It is supposed to be. The operation tool 150 and the furniture 3 are provided with an operation tool lock mechanism 60 as in the first embodiment.
このように第2の実施例に係る複数キャスタのロック機構102では、操作具150の踏み板部151を押し下げ操作すると、前側軸140と後側軸141とが伝達リンク154を介して一方向に回動して動作部材42(42A〜42D)が制動ロッド22を下方端に変位させるよう動作させ、その位置で保持されるので、すべてのキャスタ5の旋回と車輪11の回転とが同時にロックされる。一方、操作具150の踏み板部151を引き上げ操作すると、前側軸140と後側軸141とが伝達リンク154を介して逆方向に回動して動作部材42が上方に変位し、制動ロッド22がばね24により上方端に付勢されその位置で保持されるので、すべてのキャスタ5の旋回ロックと車輪11の回転ロックとが同時に解除される。なお、本実施例では、制動ロッド22を軸140、141の軸芯に対し前方側に配置しているが、制動ロッド22を軸140、141の軸芯に対し後方側に配置した場合、踏み板部151の操作は上述と逆の操作でロックおよびロック解除がなされる(図17参照)。 As described above, in the multi-caster lock mechanism 102 according to the second embodiment, when the tread plate 151 of the operation tool 150 is pushed down, the front shaft 140 and the rear shaft 141 rotate in one direction via the transmission link 154. The operating member 42 (42A to 42D) is moved to operate to displace the brake rod 22 to the lower end and is held at that position, so that all the casters 5 and the wheels 11 are simultaneously locked. . On the other hand, when the stepping plate portion 151 of the operation tool 150 is pulled up, the front shaft 140 and the rear shaft 141 are rotated in the opposite directions via the transmission link 154 to displace the operation member 42 upward, and the brake rod 22 is moved upward. Since it is urged to the upper end by the spring 24 and is held in that position, the turning lock of all casters 5 and the rotation lock of the wheels 11 are simultaneously released. In this embodiment, the brake rod 22 is disposed on the front side with respect to the shaft cores of the shafts 140 and 141. However, when the brake rod 22 is disposed on the rear side with respect to the shaft cores of the shafts 140 and 141, The operation of the unit 151 is locked and unlocked by the operation opposite to that described above (see FIG. 17).
次に、本発明の第3の実施例に係る複数キャスタのロック機構202について、図13ないし図16に基づいて説明する。本発明の第3の実施例に係る複数キャスタのロック機構202は、上記第1、第2の実施例に係る複数キャスタのロック機構2、102が、キャスタ5の制動ロッド22を、軸40A〜41B、140、141の軸芯に対し前方側に配置するようにしているのに対し、軸芯に対し後方側に配置し、操作具の操作方向を逆にした点が異なっている。すなわち、第3の実施例に係る複数キャスタのロック機構202は、キャスタ205を取付部材206(206A〜206D)に支持された軸240A、240B、241A、241Bより後方側に取り付け、制動ロッド222を、前後の軸240A、240B、241A、241Bの軸芯に対し後方側に配置するようにしている。そして、この制動ロッド222を、キャスタの旋回軸213の同一軸芯上で上下動自在に収容し、上端を旋回軸213上端面から突出させている。本実施例に係るキャスタロック機構220は、キャスタ本体210との間には、ばね24に代えて制動ロッド222を下方に付勢するばね(図示せず)を配設するようにしている。すなわち、制動ロッド222は常時図示しないばねで下方に付勢されている状態で、キャスタの旋回ロックと車輪11の回転ロックと同時に行うようになっている。 Next, a lock mechanism 202 for a plurality of casters according to a third embodiment of the present invention will be described with reference to FIGS. The multi-caster locking mechanism 202 according to the third embodiment of the present invention includes the multi-caster locking mechanisms 2 and 102 according to the first and second embodiments, and the brake rod 22 of the caster 5 with the shaft 40A- It differs from the arrangement in which it is arranged on the front side with respect to the shaft cores of 41B, 140, 141, while it is arranged on the rear side with respect to the shaft core and the operation direction of the operation tool is reversed. That is, the lock mechanism 202 for a plurality of casters according to the third embodiment attaches the caster 205 to the rear side of the shafts 240A, 240B, 241A, 241B supported by the attachment members 206 (206A to 206D), and attaches the brake rod 222. The front and rear shafts 240A, 240B, 241A, and 241B are arranged on the rear side with respect to the axis. The braking rod 222 is accommodated so as to be movable up and down on the same axis of the pivot shaft 213 of the caster, and the upper end protrudes from the upper end surface of the pivot shaft 213. In the caster lock mechanism 220 according to the present embodiment, a spring (not shown) that biases the brake rod 222 downward is provided in place of the spring 24 between the caster body 210. That is, the brake rod 222 is always urged downward by a spring (not shown) and is simultaneously performed with the caster turning lock and the wheel 11 rotation lock.
軸240A、240B、241A、241Bには、制動ロッド222を上方に動作させる動作部材242が設けられる。動作部材242は、一端の基部244が取付部材206の内側で各軸240A、240B、241A、241Bに固定されるとともに、他端丸棒部245と基部244との間には、制動ロッド222の露出上部が通過可能な貫通孔246が形成される。動作部材242は貫通孔246を通じて制動ロッド222に嵌め入れられると旋回軸213の上端面に載置されるようになっている。制動ロッド222の上端側には、当接ピン223が挿着される。すなわち、制動ロッド222に挿着された当接ピン223の下方に、動作部材242が配置されるようになっている。制動ロッド222が図示しないばねにより下方に付勢されると、当接ピン223は、動作部材242の上面に圧接され、動作部材242が図示しないばねの付勢力に抗して上方へ変位すると当接ピン223は動作部材242により上方に持ち上げられ、制動ロッド222を上方へ引き上げるようになっている。このため、本実施例に係る操作具に、上記第1第2の実施例に係る操作具50または操作具150を適用すると、これら操作具50、151は、それぞれ前側軸240A、240Bの各軸芯から前方側に延長して配置されているので、操作部51または踏み板部151が上端位置にあるとき、制動ロッド222は図示しないばねの付勢力により下端位置に押圧され、キャスタの旋回ロックと車輪11の回転ロックがなされる。そして、上端位置にある操作部51または踏み板部151が手または足の操作により押し下げられ、下端位置に達してロックされると、動作部材242は軸240A、240B、241A、241Bの回動に応じて上方に押し上げられ、上面に当接ピン223を載せて上方へ引き上げる。このため、制動ロッド222は図示しないばねの付勢力に抗して上端位置に保持され、キャスタの旋回ロック解除と車輪11の回転ロック解除がなされるようになっている。このように、本発明の第3の実施例に係る複数キャスタのロック機構202では、前後の軸240A、240B、241A、241Bに対し、操作具50、150が配置される側(本実施例では前方側)と逆の側(本実施例では後方側)に動作部材242と制動ロッド222を配置することにより、操作具50、150の操作方向が逆となるようになっている。図17では、上記各実施例について、操作具50、151の配置と、キャスタロック機構20、220と、制動ロッド22、222の軸芯に対する配置と、操作部51および踏み板部151の上下端位置と、キャスタの旋回、回転ロックまたはロック解除の状態との関係をそれぞれ示している。 The shafts 240A, 240B, 241A, and 241B are provided with an operation member 242 that moves the brake rod 222 upward. The operating member 242 has a base 244 at one end fixed to the shafts 240A, 240B, 241A, and 241B inside the mounting member 206, and between the other end round bar 245 and the base 244, A through hole 246 through which the exposed upper part can pass is formed. When the operating member 242 is fitted into the brake rod 222 through the through hole 246, the operating member 242 is placed on the upper end surface of the pivot shaft 213. A contact pin 223 is inserted into the upper end side of the brake rod 222. That is, the operating member 242 is arranged below the contact pin 223 inserted into the brake rod 222. When the brake rod 222 is urged downward by a spring (not shown), the contact pin 223 is pressed against the upper surface of the operating member 242, and when the operating member 242 is displaced upward against the urging force of the spring (not shown), The contact pin 223 is lifted upward by the operating member 242, and the brake rod 222 is lifted upward. For this reason, when the operating tool 50 or the operating tool 150 according to the first and second embodiments is applied to the operating tool according to the present embodiment, the operating tools 50 and 151 are respectively connected to the front shafts 240A and 240B. Since it is arranged to extend forward from the core, when the operation part 51 or the footboard part 151 is in the upper end position, the brake rod 222 is pressed to the lower end position by a biasing force of a spring (not shown), The rotation of the wheel 11 is locked. When the operation unit 51 or the foot plate 151 at the upper end position is pushed down by hand or foot operation and reaches the lower end position and is locked, the operation member 242 responds to the rotation of the shafts 240A, 240B, 241A, 241B. The contact pin 223 is placed on the upper surface and pulled upward. For this reason, the brake rod 222 is held at the upper end position against a biasing force of a spring (not shown) so that the turning lock of the caster is released and the rotation lock of the wheel 11 is released. Thus, in the multiple caster locking mechanism 202 according to the third embodiment of the present invention, the operating tools 50 and 150 are disposed on the front and rear shafts 240A, 240B, 241A, and 241B (in this embodiment, By disposing the operation member 242 and the brake rod 222 on the side opposite to the front side (back side in the present embodiment), the operation directions of the operation tools 50 and 150 are reversed. In FIG. 17, the arrangement of the operation tools 50 and 151, the arrangement of the caster lock mechanisms 20 and 220, and the brake rods 22 and 222 with respect to the axial center, and the upper and lower end positions of the operation unit 51 and the tread plate unit 151 in each of the above embodiments. And the relationship between the rotation of the caster, the rotation lock, or the unlock state.
なお、上記各実施例に係る複数キャスタのロック機構では、キャスタの旋回と車輪の回転とを同時にロックするようにしているがこれに限られるものではなく、どちらか一方のみを、例えば、旋回のみまたは回転のみをロックまたはロック解除するようにしてもよい。すなわち、キャスタの旋回ロックのみの場合、車輪ロック部材に回転止め係合部を設けないようにするか、キャスタ本体に縦孔の下方に凹凸部を形成し、旋回止め係合部をこの凹凸部に係合させるようにし、車輪ロック部材を不要としてもよい。また車輪の回転ロックのみの場合、車輪ロック部材の揺動端上部に形成された凹凸部を平坦に形成し、制動ロッドの下端が車輪ロック部材の揺動端に当接して押し下げる際、制動ロッドの旋回止め係合部が車輪ロック部材の揺動端と係合しないようにすればよい。また、上記各実施例では、家具3の底部4に取り付けられたすべてのキャスタ5A〜5Dの旋回と車輪の回転とをロックするようにしているが、これに限られるものではなく、一部のキャスタについて、例えば、前方側の2個のキャスタ5A、5Bについてのみ、複数キャスタのロック機構を適用するようにしてもよい。さらに、上記第1の実施例では、制動ロッドをばねにより上方に弾発付勢させ、第3の実施例では、制動ロッドをばねにより下方に付勢するようにしているがこれに限られるものではなく、ばねを用いず、動作部材に一体動可能に係止させ、連動させるようにしてもよい。また、上記各実施例では、操作具は、一端を軸に連結し、連結端から延びる操作部が家具の底部から外側に突出して露出するようにし、足で操作するようにしているが、これに限られるものではなく、下端を軸に連結し、上端を家具の底部から上方に延長し、この上端操作部を手により操作するようにしてもよい。さらに、上記各実施例では、操作具からの力により連動される軸を丸棒状または角棒状の軸により構成しているがこれに限られるものではなく、中空パイプや所定の強度を有する平棒により構成してもよい。また、上記各実施例では、各軸40、41A、41B、40A、40B、140、141、240A、240B、241A、241Bは前後の軸とも軸芯を左右方向に合致させて、前後の軸を平行に配置しているがこれに限られるものではなく、軸芯を前後方向に合致させて左右側に配置するようにしてもよく、その場合、操作具を家具の横方向に露出させるようにすればよい。さらに、取付部材は家具底面の前後側にそれぞれ2個づつ取り付けているがこれに限られるものではなく、一列に並んでいれば2個以上取り付けるようにしてもよい。また、上記実施例では、キャスタロック機構の制動部材を制動ロッドから構成し、この制動ロッドを進退させてキャスタのロックおよびロック解除を行うようにしているがこれに限られるものではなく、動作部材により動作される制動部材を、下端に旋回止め係合部を備えた揺動レバーにより構成し、この揺動レバーの揺動によりキャスタのロックおよびロック解除を行うようにしてもよい。さらに、上記各実施例では、被取付体として床頭台を例示しているがこれに限られるものではなく、家具や寝具、運搬具、展示用ケース、事務用器材、事務用機器等幅広い用途に適用可能であることは言うまでもない。 In the multiple caster locking mechanism according to each of the above embodiments, the turning of the caster and the rotation of the wheel are locked at the same time. However, the present invention is not limited to this. Alternatively, only rotation may be locked or unlocked. That is, in the case of only the rotation lock of the caster, the wheel lock member is not provided with the rotation stop engaging portion or the caster main body is formed with an uneven portion below the vertical hole, and the rotation stop engaging portion is set to the uneven portion. The wheel lock member may be unnecessary. In the case of only the rotation lock of the wheel, the uneven portion formed at the upper part of the rocking end of the wheel lock member is formed flat, and when the lower end of the brake rod comes into contact with the rocking end of the wheel lock member and is pushed down, the brake rod It is only necessary that the pivot stop engaging portion is not engaged with the swinging end of the wheel lock member. Moreover, in each said Example, although turning of all the casters 5A-5D attached to the bottom part 4 of the furniture 3 and rotation of a wheel is locked, it is not restricted to this, A part of For the casters, for example, a lock mechanism of a plurality of casters may be applied only to the two casters 5A and 5B on the front side. Furthermore, in the first embodiment, the brake rod is elastically biased upward by a spring, and in the third embodiment, the brake rod is biased downward by a spring, but this is not limitative. Instead of this, the operating member may be engaged and interlocked with each other without using a spring. Further, in each of the above embodiments, the operation tool has one end connected to the shaft, and the operation part extending from the connection end protrudes outward from the bottom of the furniture, and is operated with the foot. However, the lower end may be connected to the shaft, the upper end may be extended upward from the bottom of the furniture, and the upper end operation unit may be operated by hand. Further, in each of the above embodiments, the shaft that is interlocked by the force from the operating tool is constituted by a round bar-shaped or square bar-shaped shaft, but the present invention is not limited to this, and a hollow pipe or a flat bar having a predetermined strength. You may comprise by. In each of the above embodiments, each of the shafts 40, 41A, 41B, 40A, 40B, 140, 141, 240A, 240B, 241A, 241B has the front and rear shafts aligned with the front and rear shafts in the left-right direction. Although it is arranged in parallel, it is not limited to this, and it may be arranged on the left and right sides so that the axis is aligned in the front and rear direction, in which case the operation tool is exposed in the lateral direction of the furniture do it. Furthermore, two attachment members are attached to the front and back sides of the bottom surface of the furniture, but the present invention is not limited to this, and two or more attachment members may be attached as long as they are arranged in a line. Further, in the above embodiment, the brake member of the caster lock mechanism is composed of a brake rod, and the brake rod is advanced and retracted to lock and unlock the caster. However, the present invention is not limited to this. The brake member operated by the above may be constituted by a swing lever having a pivot stop engaging portion at the lower end, and the caster may be locked and unlocked by swinging the swing lever. Furthermore, in each of the above embodiments, a floor head is illustrated as an attached body, but the present invention is not limited to this, and has a wide range of applications such as furniture, bedding, transport equipment, display cases, office equipment, office equipment, etc. Needless to say, this is applicable.
2 複数キャスタのロック機構
3 家具(被取付体)
5 キャスタ
6(6FR、6FL、6RR、6RL) 取付部材
10 キャスタ本体
11 車輪
13 旋回軸
20 キャスタロック機構(キャスタロック手段)
22 制動ロッド(制動部材)
40、41A、41B 軸(連動手段)
42 動作部材
44 基部(操作手段の一端)
51 操作部(操作手段の他端)
50 操作具(操作手段)
2 Multiple caster locking mechanism 3 Furniture (attachment)
5 Caster 6 (6FR, 6FL, 6RR, 6RL) Mounting member 10 Caster body 11 Wheel 13 Rotating shaft 20 Caster lock mechanism (Caster lock means)
22 Brake rod (brake member)
40, 41A, 41B shaft (interlocking means)
42 operation member 44 base (one end of operation means)
51 Operation part (the other end of the operation means)
50 Operation tool (operation means)
Claims (7)
被取付体底面の隅部に配置され、キャスタを被取付体に旋回自在に取り付ける取付部材と、
車輪が回転可能に支持されるキャスタ本体に制動部材を変位可能に収容して一端を外部に突出させ、この制動部材を変位させてキャスタの旋回と車輪の回転とをロックまたはロック解除するキャスタロック手段と、
同じ方向に一列に並んで配置される取付部材に軸芯同一で回動自在に設けられる軸と、これら軸に取り付けられ制動部材に当接して制動部材を動作させる動作部材と、異なる列の取付部材に設けられた軸間を連結し一方の列の軸の回動を他方の列の軸に同一方向で伝達する伝達リンクとを備え、軸に与えられる回動力を動作部材を介して制動部材に伝達する連動手段と、
一端が軸に連結され、他端が外側に延長され、他端に外力が与えられると、軸を回動させる操作手段とを備えるとともに、
キャスタ本体には、旋回軸側に旋回軸と同一軸芯上に上下に貫通される縦孔を形成し、車輪の内側には周方向に沿って凹凸部を形成して構成し、
キャスタロック手段を、縦孔に上下動自在に挿通された制動ロッドと、制動ロッドの上端側に挿通されたピンと、制動ロッドとキャスタ本体との間に介在され制動ロッドを下方に付勢するばねと、制動ロッドの下端に設けられ下側に凹凸部が形成された旋回止め係合部と、一端がキャスタ本体に揺動可能に枢着さればねにより常時上方に付勢され、揺動端が旋回止め係合部の下方に延びる車輪ロック部材とを備え、この車輪ロック部材の揺動端上側には、上記旋回止め係合部と係合する凹凸部を形成し、下側には、車輪の周方向凹凸部に係脱自在に係合する回転止め係合部を設けて構成するとともに、制動ロッドに挿通されたピンの下方に、動作部材をピンを押し上げ可能に配置したことを特徴とする複数キャスタのロック機構。 A lock mechanism of a plurality of casters that locks a plurality of casters attached to a mounted body,
A mounting member that is disposed at a corner of the bottom surface of the mounted body and pivotally attaches the caster to the mounted body;
A caster lock that locks or unlocks the turning of the caster and the rotation of the wheel by displacing the braking member in the caster main body on which the wheel is rotatably supported and projecting one end to the outside and displacing the braking member. Means,
Mounting shafts that are arranged in a row in the same direction and that are pivotally provided with the same axial center, and operating members that are attached to these shafts and operate to operate the braking members in contact with the braking members. A transmission link for connecting the shafts provided in the member and transmitting the rotation of the shaft in one row to the shaft in the other row in the same direction, and a braking member for transmitting the rotational force applied to the shaft via the operation member Interlocking means to communicate to,
One end connected to the shaft, the other end is extended to the outside, with an external force is applied to the other end, and an operating means for rotating the shaft Rutotomoni,
The caster body is formed by forming a vertical hole penetrating vertically on the same axis as the pivot axis on the pivot axis side, and forming an uneven portion along the circumferential direction on the inner side of the wheel,
A caster lock means is inserted between the brake rod and the caster main body, a brake rod inserted into the vertical hole so as to be movable up and down, a pin inserted on the upper end side of the brake rod, and a spring for biasing the brake rod downward And an anti-rotation engaging portion provided at the lower end of the brake rod and having a concavo-convex portion formed on the lower side, and one end pivotally attached to the caster body and urged upward by a spring at all times. A wheel lock member extending below the swivel stop engaging portion, and an uneven portion that engages with the swivel stop engaging portion is formed on the upper end of the swing end of the wheel lock member. A rotation stop engaging portion that is detachably engaged with the circumferential concavo-convex portion is provided, and an operating member is disposed below the pin inserted through the brake rod so that the pin can be pushed up. Multi-caster locking mechanism.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009255088A JP5468358B2 (en) | 2009-11-06 | 2009-11-06 | Multiple caster locking mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009255088A JP5468358B2 (en) | 2009-11-06 | 2009-11-06 | Multiple caster locking mechanism |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011098657A JP2011098657A (en) | 2011-05-19 |
JP5468358B2 true JP5468358B2 (en) | 2014-04-09 |
Family
ID=44190204
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009255088A Active JP5468358B2 (en) | 2009-11-06 | 2009-11-06 | Multiple caster locking mechanism |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP5468358B2 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013049406A (en) * | 2011-08-02 | 2013-03-14 | Hotta Kk | Brake mechanism for adjustable caster |
JP6483431B2 (en) * | 2014-12-18 | 2019-03-13 | 東海キャスター株式会社 | Actuator switching mechanism and caster braking mechanism |
JP2017077837A (en) * | 2015-10-21 | 2017-04-27 | パラマウントベッド株式会社 | Caster operation device |
JP6093081B1 (en) * | 2016-08-02 | 2017-03-08 | アコマ医科工業株式会社 | Caster lock operating mechanism |
US20210394558A1 (en) * | 2018-10-25 | 2021-12-23 | Reliance Medical Products | Braking assembly for a caster base |
CN113771551B (en) * | 2021-09-26 | 2023-03-21 | 武汉中科医疗科技工业技术研究院有限公司 | Foot brake mechanism and bearing base |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0257403A (en) * | 1988-08-19 | 1990-02-27 | Paramaunto Bed Kk | Operating mechanism of caster for bed or the like |
JPH0822642B2 (en) * | 1991-05-02 | 1996-03-06 | パラマウントベッド株式会社 | Caster interlocking lock operation mechanism |
JPH1148704A (en) * | 1997-08-08 | 1999-02-23 | Futaba Kinzoku Kogyo Kk | Caster having brake mechanism |
JP3190919B2 (en) * | 1998-04-02 | 2001-07-23 | 株式会社ナンシン | Twin wheel caster with lock mechanism |
JP4797461B2 (en) * | 2004-09-01 | 2011-10-19 | コクヨ株式会社 | Legs and furniture |
JP2007190940A (en) * | 2006-01-17 | 2007-08-02 | Daifuku Co Ltd | Stopper device of caster |
JP5344713B2 (en) * | 2010-09-03 | 2013-11-20 | トーヨーベンディング株式会社 | Floor mount fixing device |
-
2009
- 2009-11-06 JP JP2009255088A patent/JP5468358B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
JP2011098657A (en) | 2011-05-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5468358B2 (en) | Multiple caster locking mechanism | |
JP5932034B2 (en) | Caster with shaft and wheel braked simultaneously | |
US8516656B2 (en) | Combination castor whose castor units are braked simultaneously | |
JP4721326B2 (en) | Vehicle seat locking device | |
JP2013527080A (en) | Brake system for stroller | |
NL2013148C2 (en) | Joint device. | |
JP3190006U (en) | Wheelset with brake function | |
JP2009501674A (en) | Bed caster and brake assembly | |
JP6033377B1 (en) | Single wheel caster | |
JP2013536786A (en) | Tri-state caster assembly with swivel lock and wheel brake | |
US9533530B2 (en) | Wheel assembly for an infant support apparatus | |
JP4464443B2 (en) | Lock handle device for door | |
JP4989118B2 (en) | Casters | |
JP5058670B2 (en) | Caster lock mechanism of caster frame | |
JP4103048B2 (en) | Caster lock operating device | |
JP6110100B2 (en) | Operation lever device and chair provided with the same | |
JP6836611B2 (en) | Castor braking mechanism | |
JP6483431B2 (en) | Actuator switching mechanism and caster braking mechanism | |
JP3548624B2 (en) | Automatic unlocking mechanism for handle-type moving shelf | |
JP5424156B2 (en) | Caster lock operating device | |
US10150495B2 (en) | Wheel locking mechanism | |
JP6141617B2 (en) | Advancement / retraction device and chair using the same | |
JP2016101830A5 (en) | ||
JP3208792U (en) | Caster device and storage rack | |
JP7386684B2 (en) | seat sliding device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20120529 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20130613 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20130723 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20130924 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20140114 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20140129 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 5468358 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |