JP2010030573A5

JP2010030573A5 -

Info

Publication number: JP2010030573A5
Application number: JP2008214671A
Authority: JP
Filing date: 2008-07-28
Publication date: 2012-07-19
Anticipated expiration: 2028-07-28

Description

上記不具合を解消するために、本発明は次のような構成としている。
請求項１に記載した自在キャスタは、台車本体の裏面側に取付けると共に、その一部に傾斜面を有するトッププレートの傾斜面に取付けた主軸と、この主軸の外周囲を回動する軸受と、この軸受と一体で形成したのフォークを介して、前記主軸の延長線上とは異なる位置に、その車軸を配設した車輪を設けた。
この車輪の進行方向が変化すると、前記主軸の取付面に対する傾斜と、この主軸の延長線上とは異なる位置に車軸を配設した、車輪の取付位置とによって発生する、車輪の上下動による、前記車輪の接地面と前記台車本体との間隔の変化を補正するために、前記主軸の外周囲又は前記軸受の内周囲を楕円状に一周する傾斜溝と、ボールベアリングとからなる補正手段を配けて自在キャスタとした。
このような自在キャスタは、車輪の進行方向が変化しても車輪の接地面とトッププレートとの間隔を、常に一定の高さに補正できる。
請求項２に記載した自在キャスタは、請求項１に記載した主軸と軸受との取付関係を逆転させて取付けることで自在キャスタとした。すなわち、トッププレートに、軸受を取付けると共に、この軸受に主軸を取付けた。
このような自在キャスタに請求項１で記載したと同様の、補正手段を設けることで請求項１と同様の作用と効果を得ることができるものである。
請求項３に記載した自在キャスタは、台車本体の裏面側に取付けると共に、その一部に傾斜面を有するトッププレートの、傾斜面に取付けた主軸の一端に設定した、回動可能で上下動可能の、軸受に設けた軸受板の一端側に、トッププレートの裏面側の平面部に常にその頂部を当接させたキャスタよりなる補正手段を設けて自在キャスタとした。
このような自在キャスタは、方向転換しても、軸受板の一端側に設けたキャスタの頂部が、常にトッププレートの裏面側の平面部に当接していることで、車輪の接地面とトッププレートとの間隔を、常に一定の高さに補正できる。
請求項４に示す台車は、請求項１乃至請求項３に記載した自在キャスタを、台車本体の前輪と後輪とに１対ずつ取付けると共に、前輪と後輪との主軸の傾きを、それぞれ対向させて配所することにより台車とした。
このように自在キャスタの主軸の傾きを、前後輪で対向させることによって、一方の自在キャスタで台車としての直進性を、他方の自在キャスタで台車としての方向転換を容易にできるようにした。
In order to solve the above problems, the present invention has the following configuration.
The universal caster according to claim 1 is attached to the rear surface side of the carriage main body, and a main shaft attached to an inclined surface of a top plate having an inclined surface in a part thereof, a bearing rotating around the outer periphery of the main shaft, A wheel provided with the axle was provided at a position different from the extension line of the main shaft through a fork formed integrally with the bearing.
When the traveling direction of the wheel is changed, the vertical movement of the wheel is caused by the inclination of the main shaft to the mounting surface and the wheel mounting position where the axle is disposed at a position different from the extension line of the main shaft. In order to correct a change in the distance between the ground contact surface of the wheel and the main body of the carriage, a correcting means including a ball bearing and an inclined groove that makes an elliptical round around the outer periphery of the main shaft or the inner periphery of the bearing is disposed. Free casters.
Such a universal caster can always correct the distance between the ground contact surface of the wheel and the top plate to a constant height even if the traveling direction of the wheel changes.
The universal caster described in claim 2 is a universal caster that is mounted by reversing the mounting relationship between the main shaft and the bearing described in claim 1. That is, the bearing was attached to the top plate, and the main shaft was attached to the bearing.
By providing correction means similar to that described in claim 1 to such a universal caster, the same operation and effect as in claim 1 can be obtained.
The universal caster according to claim 3 is attached to the back side of the carriage main body, and is rotatable and vertically movable, set on one end of a main shaft attached to the inclined surface of a top plate having an inclined surface in a part of the caster. A correction means comprising a caster in which the top portion is always brought into contact with the flat portion on the back surface side of the top plate is provided on one end side of the bearing plate provided on the bearing, thereby forming a free caster.
Even if such a universal caster changes its direction, the top of the caster provided at one end of the bearing plate is always in contact with the flat portion on the back side of the top plate, so that the ground contact surface of the wheel and the top plate Can always be corrected to a certain height.
According to a fourth aspect of the present invention, the bogie according to any one of the first to third aspects is attached to the front wheel and the rear wheel of the main body of the bogie body, and the inclination of the main shaft of the front wheel and the rear wheel is opposed to each other. It was made a trolley by arranging it.
In this way, by allowing the inclination of the main shaft of the free caster to face each other at the front and rear wheels, it is possible to easily change the direction of the cart as one cart and the other as the cart as a cart.

Claims

台車本体の裏面側に取付けると共に、その一部に傾斜面を有するトッププレートと、
このトッププレートの前記傾斜面に取付けた円柱状の主軸と、
この主軸の外周囲を回動可能な状態で設けた筒状の軸受と、
この軸受と一体で形成した二又状のフォークを介して、前記主軸の延長線上とは異なる位置に、その車軸を配設した車輪と、
この車輪の進行方向が変化し、前記軸受が回動して、前記車輪の接地面と前記台車本体との間隔が変化すると、この変化に対応して前記間隔を一定に補正するように設けた、前記主軸の外周囲又は前記軸受の内周囲を楕円状に一周する傾斜溝と、この傾斜溝に沿って回動する軸受を案内するボールベアリングとからなる補正手段を有する自在キャスタ。 Attached to the back side of the cart body, and a top plate having an inclined surface in a part thereof,
A cylindrical main shaft attached to the inclined surface of the top plate ;
A cylindrical bearing provided in a rotatable state around the outer periphery of the main shaft ;
A wheel having the axle disposed at a position different from the extension line of the main shaft through a forked shape formed integrally with the bearing;
When the traveling direction of the wheel is changed, the bearing is rotated, and the distance between the ground contact surface of the wheel and the carriage body is changed, the distance is corrected to be constant corresponding to the change. A free caster having correction means comprising an inclined groove that makes an elliptical round around the outer periphery of the main shaft or the inner periphery of the bearing, and a ball bearing that guides the bearing that rotates along the inclined groove .

台車本体の裏面側に取付けると共に、その一部に傾斜面を有するトッププレートと、
このトッププレートの前記傾斜面に、その一端を取付ける筒状の軸受と、
この軸受内を回動する主軸と一体で設けた二又状のフォークを介して、前記主軸の延長線上とは異なる位置に、その車軸を配設した車輪と、
この車輪の進行方向が変化し、前記主軸が回動して、前記車輪の接地面と前記台車本体との間隔が変化すると、この変化に対応して前記間隔を一定に補正するように設けた、前記主軸の外周囲又は前記軸受の内周囲を楕円状に一周する傾斜溝と、この傾斜溝に沿って回動する主軸を案内するボールベアリングとからなる補正手段を有する自在キャスタ。 Attached to the back side of the cart body, and a top plate having an inclined surface in a part thereof,
A cylindrical bearing for attaching one end to the inclined surface of the top plate;
Via a bifurcated fork provided integrally with the main shaft rotating in the bearing, a wheel provided with the axle at a position different from the extension line of the main shaft;
When the traveling direction of the wheel is changed, the main shaft is rotated, and the distance between the ground contact surface of the wheel and the cart body is changed, the distance is corrected to be constant corresponding to the change. A free caster having correction means comprising an inclined groove that makes an elliptical round around the outer periphery of the main shaft or the inner periphery of the bearing, and a ball bearing that guides the main shaft that rotates along the inclined groove .

台車本体の裏面側に取付けると共に、その一部に傾斜面を有するトッププレートと、
このトッププレートの前記傾斜面に取付けた円柱状の主軸と、
この主軸の一端に回動可能で、かつ、上下動可能に設定した筒状の軸受と、
この軸受の一端に設けた板状の軸受板と、
この軸受板の一端の両側を折曲して形成した二又状のフォークを介して、前記主軸の延長線上とは異なる位置に、その車軸を配設した車輪と、
この車輪の進行方向が変化し、前記軸受が回動して、前記車輪の接地面と前記台車本体との間隔が変化すると、この変化に対応して前記間隔を一定に補正するように、
前記軸受板の一端側で、前記軸受と同一方向に突出した状態で設けると共に、前記トッププレートの裏面側に設けた傾斜面周囲の平面部に、その頂部を当接して回動するキャスタよりなる補正手段を有する自在キャスタ。 Attached to the back side of the cart body, and a top plate having an inclined surface in a part thereof,
A cylindrical main shaft attached to the inclined surface of the top plate;
A cylindrical bearing that can be rotated at one end of the main shaft and can be moved up and down;
A plate-like bearing plate provided at one end of the bearing;
Via a bifurcated fork formed by bending both sides of one end of the bearing plate, a wheel provided with the axle at a position different from the extension line of the main shaft ;
When the traveling direction of the wheel is changed, the bearing is rotated, and the distance between the ground contact surface of the wheel and the cart body is changed, the distance is corrected to be constant corresponding to the change.
The caster is provided on one end side of the bearing plate so as to protrude in the same direction as the bearing, and is a caster that rotates by contacting the top with a flat portion around the inclined surface provided on the back side of the top plate. A free caster having a correction means .

台車本体の裏面側に取付けるトッププレートとは、斜交して取付けた主軸を介して車輪取付用のフォークを設けると共に、このフォークに取付けた車輪は、前記主軸の延長線上とは異なる位置に、その車軸を配設した自在キャスタ本体と、
この自在キャスタ本体がその進行方向を変えると、前記主軸の傾斜とこの主軸の延長線上とは異なる位置に、その車軸を設けた前記車輪の取付位置とによって生じる前記台車本体の上下動を補正すると共に、この台車本体と前記車輪の接地面との間隔が一定になるような補正手段を有する自在キャスタと、
この自在キャスタを前記台車本体の前輪と後輪とに１対ずつ配設し、前輪と後輪との前記主軸の傾きを、それぞれ対向させて配設したことを特徴とする台車。 The top plate attached to the back side of the main body of the carriage is provided with a fork for attaching a wheel via a main shaft attached obliquely, and the wheel attached to the fork is at a position different from the extension line of the main shaft. A universal caster body with the axle disposed,
When this universal caster body changes its traveling direction, the vertical movement of the carriage body caused by the inclination of the main shaft and the mounting position of the wheel provided with the axle at a position different from the extension line of the main shaft is corrected. And a free caster having a correction means such that the distance between the cart body and the ground contact surface of the wheel is constant,
A bogie characterized in that the universal casters are arranged in pairs on the front wheel and the rear wheel of the bogie body, and the inclination of the main shaft of the front wheel and the rear wheel is opposed to each other.