JPH10291478A - Center shaft driving carrier - Google Patents
Center shaft driving carrierInfo
- Publication number
- JPH10291478A JPH10291478A JP10184297A JP10184297A JPH10291478A JP H10291478 A JPH10291478 A JP H10291478A JP 10184297 A JP10184297 A JP 10184297A JP 10184297 A JP10184297 A JP 10184297A JP H10291478 A JPH10291478 A JP H10291478A
- Authority
- JP
- Japan
- Prior art keywords
- frame
- wheels
- main frame
- sub
- wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Handcart (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、舵取り操作力を
軽減して舵取りを容易にし、かつ各車輪の接地圧を設定
圧に保持した中心軸駆動台車に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a center shaft driving bogie which reduces steering operation force to facilitate steering and maintains a ground pressure of each wheel at a set pressure.
【０００２】[0002]
【従来の技術】一般に至近距離間で小口荷物等を運搬す
る場合は、固定キャスタと自在キャスタを備えた手押し
４輪台車が多く用いられるが、狭い工場や室内、あるい
は病院などで急角度の旋回を必要とする場合、特にある
程度荷重が大きく（３００〜１０００ｋｇ程度）なると
４輪台車では舵取りが重く、回転半径も大きくなって４
輪台車では対応できない場合がある。2. Description of the Related Art In general, when carrying small parcels or the like between short distances, a four-wheeled cart provided with fixed casters and swivel casters is often used, but a sharp turn is required in a small factory, room, or hospital. In particular, when the load becomes large to some extent (about 300 to 1000 kg), the steering is heavy and the turning radius becomes large in the four-wheel truck,
In some cases, wheeled trolleys cannot be used.
【０００３】このような狭い場所で荷物を載置して急角
度に旋回するのに適する台車として中心軸駆動６輪（３
軸）台車が製作されている。As a bogie suitable for placing a load in such a narrow place and turning at a steep angle, six wheels driven by a central shaft (3
Axle) dolly is being manufactured.
【０００４】[0004]
【発明が解決しようとする課題】しかし、上述した従来
の中心軸６輪（３軸）台車は、駆動車と従動車（補助
車）の取付方法、特に駆動車と従動車の接地圧配分が十
分考慮されていないため、舵取り操作が重く、良好な機
能を果すことができない。However, the above-described conventional six-axle center-axis six-wheel (three-axis) truck has a method of mounting a driving vehicle and a driven vehicle (auxiliary vehicle), and particularly, a distribution of ground pressure between the driving vehicle and the driven vehicle. Since it is not sufficiently considered, the steering operation is heavy and cannot perform a good function.
【０００５】駆動車の接地圧確保のため、両端の従動車
輪と路面の間にクリアランスを設けたり、フレームとの
取付部にゴムやスプリング等のクッション材を入れたり
しているが、路面の凹凸や車輪の摩耗、あるいは加重の
変動等で天秤や中浮き、スリップ等の不安定な走行が生
じ易い。In order to secure the ground pressure of the driving vehicle, a clearance is provided between the driven wheels at both ends and the road surface, and a cushion material such as rubber or a spring is inserted into a mounting portion with the frame. Unstable running such as balance, floating in the middle, and slipping is likely to occur due to wear of the wheels, wear of the wheels, or fluctuations in the load.
【０００６】台車を構成する主フレームに対してサブフ
レームを設けた形式のものも一部に知られているが、サ
ブフレームを主フレームに取付ける支点を単にサブフレ
ーム前後の車輪間の中心位置に設けており、接地圧配分
が不十分であるため舵取りが重かったりして実用的でな
いのが現状である。一般的に手押しで舵取り操作する形
式のものではことさらに困難である。[0006] Although a part of a type in which a sub-frame is provided for a main frame constituting a bogie is also known, a fulcrum for attaching the sub-frame to the main frame is simply located at a center position between wheels before and after the sub-frame. At present, it is impractical due to heavy steering due to insufficient ground pressure distribution. In general, it is even more difficult with a manual steering type.
【０００７】この発明は、従来の３軸台車における上述
した問題に留意して、簡易な機構で接地配分を考慮し舵
取り操作が容易で狭い場所でも急角度の旋回も自由に行
なえる３軸台車を提供することを課題とする。The present invention takes into account the above-mentioned problems in a conventional three-axle bogie, and takes into account the distribution of ground contact with a simple mechanism, facilitates steering operation, and can freely turn sharply even in a narrow place. The task is to provide
【０００８】[0008]
【課題を解決するための手段】この発明は、上記課題を
解決する手段として、主フレームに従動車輪と、サブフ
レームを介して駆動車輪と従動車輪とを駆動車輪寄りに
偏らせた支点で揺動自在に支持し、駆動車輪を台車又は
主フレームの中心位置、あるいはその中心から所定範囲
内に設置して少なくとも３軸の車輪取付軸により各車輪
を取付け、前輪、後輪の従動車輪及び駆動車輪の設定接
地圧が路面状況に拘らず一定として成る中心軸駆動台車
としたのである。According to the present invention, as a means for solving the above-mentioned problems, a driven wheel driven by a main frame, and a driving wheel and a driven wheel driven through a sub-frame by a fulcrum biased toward a driving wheel. It is movably supported, and drive wheels are installed at the center position of the bogie or main frame or within a predetermined range from the center thereof, and each wheel is mounted by at least three wheel mounting shafts, driven wheels of front wheels, rear wheels and drive The center-axis drive bogie was designed so that the set contact pressure of the wheels was constant regardless of the road surface condition.
【０００９】上記の構成としたこの発明の中心軸駆動台
車は、駆動輪がほぼ台車又は主フレームの中央付近にあ
り、駆動輪及び前、後端の従動輪には路面状況の如何に
拘らず一定の接地圧が作用する。このため、中浮きによ
る駆動輪のスリップを防止し、サブフレームの支点を駆
動輪寄りに支持することにより、従動輪の接地圧が軽く
て操縦性がよく、路面凹凸に追従し、狭い所で急角度に
旋回する場合にも容易に回転でき、又走行の安定性が確
保される。In the center shaft driving bogie according to the present invention having the above-described structure, the driving wheels are almost in the vicinity of the center of the bogie or the main frame, and the driving wheels and the front and rear driven wheels are independent of the road surface condition. A constant ground pressure acts. Therefore, by preventing the drive wheels from slipping due to floating in the middle, and by supporting the fulcrum of the sub-frame closer to the drive wheels, the contact pressure of the driven wheels is light, the maneuverability is good, and it follows the uneven road surface, and It can be easily rotated even when turning at a steep angle, and running stability is ensured.
【００１０】上記構成の中心軸駆動台車において、前記
主フレームをサブフレームで支持する支点取付部が台車
長手方向に取付位置自在とすると車輪に対する荷重の配
分比率を任意の割合に変えることができ、操舵力の可変
が可能となる。[0010] In the center shaft driving bogie having the above-mentioned structure, when the fulcrum mounting portion for supporting the main frame by the sub-frame can be freely mounted in the bogie longitudinal direction, the distribution ratio of the load to the wheels can be changed to an arbitrary ratio. The steering force can be varied.
【００１１】[0011]
【実施の形態】以下、この発明の実施の形態について図
面を参照して説明する。図１は第１実施形態の中心軸駆
動台車の全体概略斜視図である。１は主フレーム、２は
サブフレームである。主フレーム１の前端に従動輪（自
在キャスタ）１１Ａが、サブフレーム２の前端で台車又
は主フレームの長さ方向の中央又はその中央から一定距
離範囲内に駆動輪１１Ｃと後端に従動輪１１Ｂがそれぞ
れ取り付けられている。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an overall schematic perspective view of a center shaft drive truck according to the first embodiment. 1 is a main frame and 2 is a subframe. A driven wheel (free caster) 11A at the front end of the main frame 1 is provided with a driving wheel 11C and a driven wheel 11B at the front end of the subframe 2 at a center in the longitudinal direction of the bogie or the main frame or within a certain distance from the center. Are attached.
【００１２】サブフレーム２は主フレーム１に対して支
点１４を中心とする支持部１５を介して揺動自在に取り
付けられている。支持部１５は、図２に示すように、サ
ブフレーム２の駆動輪１１Ｃ寄りに偏らせた位置に、主
フレームに対しては長さ中央から所定距離後方寄りの位
置で両フレームを連結するように設けられている。支持
部１５は、詳細図を省略しているが、サブフレーム２に
固定した軸受と主フレーム１に固定した軸受に支持軸１
３が挿通され軸支されている。The sub-frame 2 is swingably attached to the main frame 1 via a support 15 centered on a fulcrum 14. As shown in FIG. 2, the support portion 15 connects the two frames to a position biased toward the drive wheel 11C of the sub-frame 2 at a position a predetermined distance behind the center of the length with respect to the main frame. It is provided in. Although the support unit 15 is not shown in detail, the support shaft 1 includes a bearing fixed to the sub-frame 2 and a bearing fixed to the main frame 1.
3 is inserted and supported.
【００１３】３は駆動モータ、４は油圧ダンパ、５はバ
ッテリ、６はサブフレーム固定具、ａはハンドル、１０
は制御盤、１２は駆動軸である。駆動モータ３の動力は
駆動ベルトやギヤ、差動機等を介して駆動軸１２に伝達
され、これにより駆動輪１１Ａが駆動され前、後進す
る。又、極端に荷物がサブフレーム側に偏荷重配分をし
たときはサブフレーム２をサブフレーム固定具６により
主フレーム１に固定して安定走行を行う。3 is a drive motor, 4 is a hydraulic damper, 5 is a battery, 6 is a sub-frame fixture, a is a handle, 10
Is a control panel, and 12 is a drive shaft. The power of the drive motor 3 is transmitted to the drive shaft 12 via a drive belt, a gear, a differential, and the like, whereby the drive wheel 11A is driven to move forward and backward. Also, when the load is extremely distributed to the sub-frame side, the sub-frame 2 is fixed to the main frame 1 by the sub-frame fixing device 6 to perform stable traveling.
【００１４】上記の構成とした中心軸駆動台車では、次
のような荷重配分で台車が使用される。図２に示す、主
フレーム１とサブフレーム２の寸法配分を下記の通りと
すると荷重配分は下記のようになる。In the center shaft drive bogie having the above configuration, the bogie is used with the following load distribution. If the dimensional distribution of the main frame 1 and the sub-frame 2 shown in FIG. 2 is as described below, the load distribution is as follows.
【００１５】 Ｌ1 ＝８０cm，Ｌ2 ＝２０cm，Ｌ3 ＝６０cm → Ｆ＝１００kg ＦC ＝６０kg，ＦA ＝ＦB ＝２０kg 上記荷重配分結果から分るように、全荷重（標準数１０
０）の大部分（指数６０）は中心となる駆動輪１１Ｃに
作用し、従動輪１１Ａ、１１Ｂでは残る荷重（指数４
０）を均等に（指数２０）ずつ分担する。従って、ハン
ドル９で台車を操縦する際ハンドルが重くなく、駆動輪
１１Ｃを中心に容易に回転できる。これにより、台車を
急角度に旋回させる必要のある狭い場所でも十分対応で
きることになる。[0015] L 1 = 80cm, L 2 = 20cm, L 3 = 60cm → F = 100kg F C = 60kg, F A = F B = 20kg As can be seen from the above load distribution results, the total load (standard number 10
Most of (0) acts on the central driving wheel 11C, and the remaining load (index 4) on the driven wheels 11A and 11B.
0) is equally shared (index 20). Therefore, when steering the bogie with the handle 9, the handle is not heavy and can be easily rotated about the drive wheel 11C. As a result, it is possible to sufficiently cope with a narrow place where the bogie needs to be turned sharply.
【００１６】上記例では特定の寸法配分について説明し
たが、寸法配分を異なる割合に変化させてもよいことは
勿論である。Although a specific size distribution has been described in the above example, it goes without saying that the size distribution may be changed to a different ratio.
【００１７】又、駆動輪１１Ｃは車体中央に１輪であっ
ても、車軸両端に２輪（差動装置付き）であっても１軸
とみなし、同等の成果が得られる。同様に駆動輪１１Ｃ
が複数で、従動輪１１Ａ、１１Ｂが単数又は複数のいず
れでもそれぞれ１軸とみなし、合計の車軸数が二軸以上
の複数であっても、同様の成果が得られる。Regardless of whether the drive wheel 11C is a single wheel at the center of the vehicle body or two wheels (with a differential device) at both ends of the axle, the drive wheel 11C is regarded as a single shaft, and equivalent results can be obtained. Similarly, drive wheel 11C
Even if the number of driven wheels 11A and 11B is singular or plural, the same result can be obtained even if the total number of axles is two or more.
【００１８】又サブフレーム２の取付は、主フレーム１
に限らず移動用筺体に直接取付ける事によっても同様の
成果が得られる。The sub-frame 2 is mounted on the main frame 1
The same result can be obtained by directly mounting the apparatus to the moving housing.
【００１９】さらに、油圧ダンパ４は慣性エネルギを吸
収し、サブフレーム２の支点位置あるいはその後方のサ
ブフレーム２の従動輪１１Ｂ側に、急停止、急発進によ
り一時的に重心位置が移動するような場合に、その重心
点移動を吸収し、台車の傾斜を防いで安定走行を確保す
る。Further, the hydraulic damper 4 absorbs the inertial energy, and the center of gravity is temporarily moved to the fulcrum position of the sub-frame 2 or the driven wheel 11B side of the sub-frame 2 behind the sudden stop and sudden start. In such a case, the movement of the center of gravity is absorbed to prevent the bogie from tilting, thereby ensuring stable running.
【００２０】図３、図４に変形実施形態を示す（第２実
施形態）。図３はサブフレーム２に駆動輪１１Ｃ、従動
輪１１Ｂを取付けた部分のみの側面図、図４は全体概略
構造及び作用説明図を示す。この実施形態では、図３に
示すように、サブフレーム２に支持部１５を取付ける際
の位置調整用の複数の支持ピン７を有する調整部材８を
備えている。FIGS. 3 and 4 show a modified embodiment (second embodiment). FIG. 3 is a side view of only a portion where the driving wheel 11C and the driven wheel 11B are attached to the sub-frame 2, and FIG. 4 is an overall schematic structure and operation explanatory diagram. In this embodiment, as shown in FIG. 3, an adjustment member 8 having a plurality of support pins 7 for position adjustment when the support portion 15 is mounted on the sub-frame 2 is provided.
【００２１】支持部１５は、主フレーム１に固定された
軸受から成る。なお、支持部１５は主フレーム１に対し
て取付位置可変とされるものとする。上記支持ピン７
は、図４（ａ）に示すように、そのいずれかを選んで支
持部１５の支点１４に嵌合させ、これにより主フレーム
１をサブフレーム２で支持する。その他の構成は全て第
１実施形態と同じである。The support section 15 is composed of a bearing fixed to the main frame 1. It is assumed that the mounting position of the support portion 15 is variable with respect to the main frame 1. Support pin 7
As shown in FIG. 4 (a), one of them is selected and fitted to the fulcrum 14 of the support portion 15, whereby the main frame 1 is supported by the sub-frame 2. All other configurations are the same as in the first embodiment.
【００２２】以上のように構成したこの実施形態の中心
軸駆動台車は、基本的作用は第１実施形態と同じである
が、支点１４が位置調整自在である点が異なる。支持ピ
ン７に嵌合する支持部１５の位置を取り付け直すことに
より変化させると荷重の配分比率を調整部材８の長さ範
囲内で任意の比率に変化させることができ、適切な配分
が可能となる。The basic operation of the center shaft drive bogie of this embodiment configured as described above is the same as that of the first embodiment, except that the position of the fulcrum 14 can be adjusted. If the position of the support portion 15 fitted to the support pin 7 is changed by reattaching, the load distribution ratio can be changed to an arbitrary ratio within the length range of the adjusting member 8, and appropriate distribution is possible. Become.
【００２３】[0023]
【発明の効果】以上詳細に説明したように、この発明の
中心軸駆動台車は前端に従動輪を有する主フレームと、
前、後端に駆動輪と従動輪を有するサブフレームとを駆
動輪寄りの位置に偏心した支点を中心として連結したも
のから構成したから、全荷重の大部分を駆動輪で受け、
前後の従動輪には設定した一定の接地圧が作用し、従っ
て駆動輪の中浮き現象が生じることがなく、操縦性がよ
く、狭い場所での急旋回も十分対応できるという効果が
得られる。As described in detail above, the center shaft driving bogie according to the present invention comprises a main frame having driven wheels at the front end,
Since the front and the rear frame have a drive frame and a sub-frame having a driven wheel that are connected around a fulcrum eccentric to a position close to the drive wheel, most of the total load is received by the drive wheel,
The set constant contact pressure acts on the front and rear driven wheels, so that the floating phenomenon does not occur in the driving wheels, the maneuverability is good, and the effect of being able to cope with a sharp turn in a narrow place is obtained.
【００２４】又、狭い通路等で方向転換が不可能であっ
てもハンドル及び駆動スイッチを前後に付けることによ
り、操縦性も変りなく、方向変換の必要がなく使用可能
となる。Also, even if the direction cannot be changed in a narrow passage or the like, by attaching the handle and the drive switch to the front and rear, the maneuverability does not change and the device can be used without the need for changing the direction.
【図１】第１実施形態の中心軸駆動台車の概略斜視図FIG. 1 is a schematic perspective view of a center shaft driving bogie according to a first embodiment.
【図２】同上のサブフレームの概略図FIG. 2 is a schematic diagram of a subframe according to the first embodiment;
【図３】第２実施形態の中心軸駆動台車のサブフレーム
概略図FIG. 3 is a schematic diagram of a subframe of a center-axis driving bogie according to a second embodiment.
【図４】同上の中心軸駆動台車の概略図FIG. 4 is a schematic view of a center shaft driving bogie according to the embodiment.
１ 主フレーム ２ サブフレーム ３ 駆動モータ ４ 油圧ダンパ ５ バッテリ ６ サブフレーム固定具 ７ 支持ピン ８ 調整部材 ９ ハンドル １０ 制御盤 １１Ａ、１１Ｂ 従動輪 １１Ｃ 駆動輪 DESCRIPTION OF SYMBOLS 1 Main frame 2 Sub-frame 3 Drive motor 4 Hydraulic damper 5 Battery 6 Sub-frame fixture 7 Support pin 8 Adjusting member 9 Handle 10 Control panel 11A, 11B Follower wheel 11C Drive wheel
Claims (2)
を介して駆動車輪と従動車輪とを駆動車輪寄りに偏らせ
た支点で揺動自在に支持し、駆動車輪を台車又は主フレ
ームの中心位置、あるいはその中心から所定範囲内に設
置して少なくとも３軸の車輪取付軸により各車輪を取付
け、前輪、後輪の従動車輪の設定接地圧が路面状況に拘
らず一定として成る中心軸駆動台車。A driven wheel is supported by a main frame, and a driving wheel and a driven wheel are swingably supported at a fulcrum biased toward a driving wheel via a sub-frame. Or a center shaft driving bogie that is installed within a predetermined range from the center thereof, and each wheel is mounted by at least three wheel mounting shafts, and a set ground pressure of front wheels and rear wheels is constant regardless of road surface conditions.
る支点取付部が台車長手方向に取付位置自在としたこと
を特徴とする請求項１に記載の中心軸駆動台車。2. The center shaft driving bogie according to claim 1, wherein a fulcrum mounting portion for supporting the main frame by a sub-frame can be freely mounted in a longitudinal direction of the bogie.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10184297A JPH10291478A (en) | 1997-04-18 | 1997-04-18 | Center shaft driving carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10184297A JPH10291478A (en) | 1997-04-18 | 1997-04-18 | Center shaft driving carrier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10291478A true JPH10291478A (en) | 1998-11-04 |
Family
ID=14311321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10184297A Pending JPH10291478A (en) | 1997-04-18 | 1997-04-18 | Center shaft driving carrier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10291478A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005306178A (en) * | 2004-04-21 | 2005-11-04 | Symtec Hozumi:Kk | Unmanned truck |
| JP2006027789A (en) * | 2004-07-14 | 2006-02-02 | Nippon Yusoki Co Ltd | Lift truck |
| JP2007308095A (en) * | 2006-05-22 | 2007-11-29 | Ihi Corp | Traveling device |
| KR20160013084A (en) * | 2013-05-21 | 2016-02-03 | 아르조 하스피탈 이큅먼트 에이비 | Assisted propulsion system, method and chassis |
| DE102017201108A1 (en) | 2017-01-24 | 2018-07-26 | Robert Bosch Gmbh | Improved industrial truck |
| JP2019134886A (en) * | 2018-02-05 | 2019-08-15 | ホシザキ株式会社 | Meal serving wagon |
| JP6830708B1 (en) * | 2020-08-20 | 2021-02-17 | 株式会社大同機械 | Bogie and its wheel system |
-
1997
- 1997-04-18 JP JP10184297A patent/JPH10291478A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005306178A (en) * | 2004-04-21 | 2005-11-04 | Symtec Hozumi:Kk | Unmanned truck |
| JP2006027789A (en) * | 2004-07-14 | 2006-02-02 | Nippon Yusoki Co Ltd | Lift truck |
| JP4592345B2 (en) * | 2004-07-14 | 2010-12-01 | 日本輸送機株式会社 | Lift truck |
| JP2007308095A (en) * | 2006-05-22 | 2007-11-29 | Ihi Corp | Traveling device |
| KR20160013084A (en) * | 2013-05-21 | 2016-02-03 | 아르조 하스피탈 이큅먼트 에이비 | Assisted propulsion system, method and chassis |
| JP2016525977A (en) * | 2013-05-21 | 2016-09-01 | アルジョ ホスピタル イクイップメント アクチエボラグＡｒｊｏ Ｈｏｓｐｉｔａｌ Ｅｑｕｉｐｍｅｎｔ ＡＢ | Auxiliary propulsion system, method and chassis |
| DE102017201108A1 (en) | 2017-01-24 | 2018-07-26 | Robert Bosch Gmbh | Improved industrial truck |
| JP2019134886A (en) * | 2018-02-05 | 2019-08-15 | ホシザキ株式会社 | Meal serving wagon |
| JP6830708B1 (en) * | 2020-08-20 | 2021-02-17 | 株式会社大同機械 | Bogie and its wheel system |
| JP2022035183A (en) * | 2020-08-20 | 2022-03-04 | 株式会社大同機械 | Truck and wheel system thereof |
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