JPH10311175A - Sash sheave - Google Patents
Sash sheaveInfo
- Publication number
- JPH10311175A JPH10311175A JP13583997A JP13583997A JPH10311175A JP H10311175 A JPH10311175 A JP H10311175A JP 13583997 A JP13583997 A JP 13583997A JP 13583997 A JP13583997 A JP 13583997A JP H10311175 A JPH10311175 A JP H10311175A
- Authority
- JP
- Japan
- Prior art keywords
- hub member
- door
- tire member
- interlocking
- surface side
- 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.)
- Granted
Links
Landscapes
- Support Devices For Sliding Doors (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、電車の乗降ドア等
に用いられる戸車に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door car used as a door for a train or the like.
【０００２】[0002]
【従来の技術】図４〜図６は、この種の戸車の従来例を
示している。芯金となる金属製の円盤状ハブ部材１の内
周面にベアリング２が嵌合され、このベアリング２を回
転軸線Ｃ−Ｃ上で回転する回転シャフト（図示せず）の
外周に嵌合させて回転する。ハブ部材１の外周面には、
外輪としてウレタンゴムなどの弾性材によるタイヤ部材
３が焼付成形などして接合されている。また、ハブ部材
１とタイヤ部材３との接合面には、ハブ部材１側の外周
面に沿って断面凸状の共回り止め突起１ａが複数箇所放
射状に設けられている。接合面にこのような共回り止め
突起１ａを複数箇所設けることにより、それらが焼付成
形時に溶融状態のタイヤ部材３に噛み込み、硬化後の接
合強度が高められる。接合強度を高めることで、使用中
にタイヤ部材３がハブ部材１との接合面から剥離して共
回り状態となり、機能し得なくなるのを防止している。2. Description of the Related Art FIGS. 4 to 6 show a conventional example of this type of door roller. A bearing 2 is fitted to the inner peripheral surface of a metal disk-shaped hub member 1 serving as a cored bar, and the bearing 2 is fitted to the outer periphery of a rotating shaft (not shown) rotating on the rotating axis CC. Rotate. On the outer peripheral surface of the hub member 1,
As an outer ring, a tire member 3 made of an elastic material such as urethane rubber is joined by baking or the like. In addition, a plurality of co-rotation preventing protrusions 1a having a convex cross section are provided radially on the joint surface between the hub member 1 and the tire member 3 along the outer peripheral surface on the hub member 1 side. By providing a plurality of such co-rotating protrusions 1a on the joint surface, they bite into the melted tire member 3 at the time of bake molding, and the joint strength after curing is increased. By increasing the bonding strength, the tire member 3 is prevented from peeling off from the bonding surface with the hub member 1 during use and becoming co-rotating, so that it cannot function.
【０００３】ところで、かかる従来の戸車においては、
電車の乗降ドア等に取り付けられて使用中、図４に示す
ように、車体側に敷設した断面凹状のガイドレール４と
の係合により、タイヤ部材３が左右の水平方向から強い
横荷重Ｗ（ＷL,ＷR）を受ける。ハブ部材１の外周に設
けた共回り止め突起１ａは、ハブ部材１とタイヤ部材３
の接合面が周方向に沿った回転モーメントを受け、タイ
ヤ部材３が周方向へ剥離するのを防止するには有効であ
る。By the way, in such a conventional door car,
As shown in FIG. 4, when the tire member 3 is attached to the entrance door of a train or the like and is in use, the tire member 3 is engaged with the guide rail 4 having a concave cross-section laid on the vehicle body side, so that the tire member 3 has a strong lateral load W ( W L, subject to W R). The co-rotation prevention protrusion 1a provided on the outer periphery of the hub member 1 is provided between the hub member 1 and the tire member 3.
Is effective to prevent the tire member 3 from peeling in the circumferential direction due to the rotational moment along the circumferential direction of the joint surface.
【０００４】しかしながら、そうした共回り止め突起１
ａは、タイヤ部材３がガイドレール４から受ける横荷重
Ｗの衝撃力に対しては機能的に半減する。即ち、ガイド
レール４との当接によって横荷重Ｗを受けると、タイヤ
部材３は弾性材であるが故にアンバランスな弾性変形を
生じ、その繰返しによって永久変形が発生する。その結
果、ハブ部材１との接合面に剥離による隙間などを生
じ、やがてはタイヤ部材３の破損などに至り、戸車とし
ての機能を果たし得なくなる。[0004] However, such co-rotating projections 1
a is functionally halved with respect to the impact force of the lateral load W received by the tire member 3 from the guide rail 4. That is, when the tire member 3 receives the lateral load W due to the contact with the guide rail 4, the tire member 3 is unbalanced elastic deformation because it is an elastic material, and permanent deformation is generated by repetition thereof. As a result, a gap or the like is formed on the joint surface with the hub member 1 due to peeling, and eventually, the tire member 3 is damaged, and the function as a door roller cannot be performed.
【０００５】[0005]
【発明が解決しようとする課題】本発明の目的は、水平
方向からの横荷重を受けて緩衝吸振用の外輪タイヤ部材
が剥離するのを防止し、従って強い横荷重を繰り返し受
ける電車の乗降ドア用として最適な戸車を提供すること
にある。SUMMARY OF THE INVENTION An object of the present invention is to prevent the outer ring tire member for cushioning and vibration absorption from being peeled off by receiving a lateral load from the horizontal direction, and therefore to get on and off the door of a train repeatedly receiving a strong lateral load. It is to provide an optimal door roller for use.
【０００６】[0006]
【課題を解決するための手段】本発明にかかる戸車は、
回転軸上で回転する金属製のハブ部材を芯金として有
し、該ハブ部材の外周に沿って緩衝および吸振を目的と
する弾性材のタイヤ部材を接合してなっているものにお
いて、ハブ部材の円盤状に形成された本体部の外周に沿
って断面凸状の係止凸部を環状に設け、本体部と係止凸
部との間に断面凹状の係止凹溝部を環状に設けると共
に、該係止凹溝部の周全体にわたって一面側から他面側
に貫通した複数のスリット孔を適宜間隔を置いて設け、
タイヤ部材が環状の係止凸部と係止凹溝部にアンダーカ
ット係合しかつスリット孔に食い込んで接合されてなっ
ている。The door roller according to the present invention is:
A hub member having a metal hub member rotating on a rotating shaft as a core metal and joining an elastic tire member for the purpose of cushioning and vibration absorption along the outer periphery of the hub member. An annular locking projection having a convex cross section is provided along the outer periphery of the disk-shaped main body, and a locking concave groove having a concave cross section is annularly provided between the main body and the locking convex. A plurality of slit holes penetrating from the one surface side to the other surface side over the entire circumference of the locking concave groove portion are provided at appropriate intervals,
The tire member is engaged with the annular locking projection and the locking groove by undercut engagement and biting into the slit hole.
【０００７】[0007]
【発明の実施の形態】本発明による戸車の実施態様につ
いて、図面を参照しながら詳細に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a door roller according to the present invention will be described in detail with reference to the drawings.
【０００８】図１〜図３に示すように、本実施態様の戸
車１０は、回転軸Ｃ−Ｃ上で回転する円盤状に形成され
た金属製のハブ部材１１を芯金として有し、このハブ部
材１１の内周面と回転シャフト（図示せず）の外周に嵌
合するボールベアリング１６を有している。ハブ部材１
１は、円盤状に形成された本体部１２を有し、この本体
部１２の外周に沿って断面凸状の係止凸部１３が環状に
設けられている。また、本体部１２と係止凸部１３との
間には、係止凹溝部１４が断面凹状で環状に設けられて
いる。更に、係止凹溝部１４の周全体にわたって一面側
から他面側に貫通した複数のスリット孔１５が適宜間隔
を置いて設けられている。As shown in FIGS. 1 to 3, a door wheel 10 according to this embodiment has a metal hub member 11 formed as a disk rotating on a rotation axis CC as a core metal. A ball bearing 16 is fitted to the inner peripheral surface of the hub member 11 and the outer periphery of a rotating shaft (not shown). Hub member 1
1 has a main body 12 formed in a disk shape, and a locking projection 13 having a convex cross section is provided in an annular shape along the outer periphery of the main body 12. Further, between the main body 12 and the locking projection 13, a locking groove 14 is provided in a ring shape with a concave cross section. Further, a plurality of slit holes 15 penetrating from one surface side to the other surface side are provided at appropriate intervals over the entire circumference of the locking concave groove portion 14.
【０００９】かかる断面形状のハブ部材１１に対して、
その外周に緩衝や吸振を目的とした硬度（ＪＩＳ Ａ）
が約８０〜９９のウレタンゴム等の弾性材によるタイヤ
部材２０が、外輪として焼付成形などして接合されてい
る。With respect to the hub member 11 having such a sectional shape,
Hardness for the purpose of cushioning and vibration absorption (JIS A)
A tire member 20 of about 80 to 99 made of an elastic material such as urethane rubber is joined by baking or the like as an outer ring.
【００１０】ハブ部材１１の外周にタイヤ部材２０を設
ける成形時に、溶融状態または軟化状態となっているタ
イヤ部材２０の成形材は、ハブ部材１１側の環状の係止
凸部１３を完全に内部に包含する形となる。また、成形
材はハブ部材１１側の係止凹溝部１４に食い込み、かつ
複数のスリット孔１５にも食い込むことにより、成形後
のタイヤ部材２０が環状の係止凸部１３と係止凹溝部１
４にアンダーカット係合してハブ部材１１の外周に一体
的に接合されることになる。When forming the tire member 20 on the outer periphery of the hub member 11, the molding material of the tire member 20 that is in a molten state or a softened state is completely inside the annular locking projection 13 on the hub member 11 side. It becomes the form included in. Further, the molded material bites into the locking groove 14 on the side of the hub member 11 and also into the plurality of slit holes 15 so that the molded tire member 20 can be formed into the annular locking protrusion 13 and the locking groove 1.
4 and is integrally joined to the outer periphery of the hub member 11.
【００１１】図１に示すように、このような構造の戸車
１０が電車の乗降ドアに取り付けられ、車体床面３０に
断面凹溝状に設けられた乗降ドア用ガイドレール３１に
係合して回転し、ドア開閉を案内する。その際、戸車１
０は、開閉時や走行中の乗降ドアを通して左右方向から
強い横荷重ＷR，ＷLを交互に受ける。As shown in FIG. 1, a door car 10 having such a structure is attached to an entrance door of a train, and engages with an entrance door guide rail 31 provided in a vehicle body floor surface 30 in a concave groove shape. Turns to guide door opening and closing. At that time, door car 1
0 undergoes a strong lateral load W R from the left and right directions through passenger door in the opening or during running, the W L alternately.
【００１２】戸車１０側のタイヤ部材２０は、ガイドレ
ール３１内で横荷重ＷR，ＷLを交互に受けることによ
り、図の左右方向へ弾性変形する。タイヤ部材２０はハ
ブ部材１１に対してアンダーカット係合およびスリット
孔１５への食い込みにより強固に接合されているので、
そうした横荷重ＷR，ＷLを繰り返し受けても弾性変形は
最小限に抑えられ、伸縮応力による水平方向への剥離に
も十分に耐えることができる。また、タイヤ部材２０
は、横荷重に対する耐久性ばかりでなく、戸車回転によ
る周方向に働く回転モーメントに対しても有効である。
更に、ハブ部材１１は、アンダーカット係合およびスリ
ット孔１５への食い込みによる強固な接合によって、周
方向へ作用する剥離力にも耐えることができる。[0012] door roller 10 side of the tire member 20 by receiving the lateral load W R, the W L alternately in the guide rail 31, is elastically deformed in the lateral direction in FIG. Since the tire member 20 is firmly joined to the hub member 11 by undercut engagement and biting into the slit hole 15,
Even if such lateral loads W R and W L are repeatedly received, elastic deformation is minimized, and it is possible to sufficiently withstand horizontal peeling due to stretching stress. Also, the tire member 20
Is effective not only for durability against lateral load but also for rotational moment acting in the circumferential direction due to rotation of the door roller.
Further, the hub member 11 can withstand the peeling force acting in the circumferential direction by the undercut engagement and the strong joining by biting into the slit hole 15.
【００１３】[0013]
【発明の効果】本発明の戸車は、例えば電車の乗降ドア
用のように横方向から強い荷重を受ける場合に最適であ
り、緩衝や吸振を目的とした外輪の弾性タイヤ部材の剥
離劣化に対して高い耐久性を発揮する。The door roller according to the present invention is most suitable for a case where a heavy load is applied from the lateral direction, for example, for a door of a train entry / exit, and is effective against peeling deterioration of an elastic tire member of an outer ring for cushioning and vibration absorption. Demonstrate high durability.
【図１】本発明に係る戸車の一態様をガイドレールに係
合させて使用中の状態を示す正面断面図である。FIG. 1 is a front cross-sectional view showing a state in which one embodiment of a door roller according to the present invention is engaged with a guide rail and is being used.
【図２】本実施態様の戸車単体を示す正面断面図であ
る。FIG. 2 is a front cross-sectional view showing the single door car of the present embodiment.
【図３】本実施態様の戸車の断面形状を示す一部の斜視
図である。FIG. 3 is a partial perspective view showing a sectional shape of the door roller according to the embodiment.
【図４】従来例の戸車をガイドレールに係合させて使用
中の状態を示す正面断面図である。FIG. 4 is a front cross-sectional view showing a state in which a conventional door roller is engaged with a guide rail and is being used.
【図５】従来例の戸車単体を示す正面断面図である。FIG. 5 is a front sectional view showing a conventional door car alone.
【図６】従来例の戸車の断面形状を示す一部の斜視図で
ある。FIG. 6 is a partial perspective view showing a cross-sectional shape of a conventional door roller.
１０ 戸車 １１ ハブ部材 １２ ハブ部材の本体部 １３ 環状の係止凸部 １４ 環状の係止凹溝部 １５ スリット孔 ２０ 外輪の弾性タイヤ部材 ３１ 電車乗降ドア用のガイドレール REFERENCE SIGNS LIST 10 door roller 11 hub member 12 main body portion of hub member 13 annular locking convex portion 14 annular locking concave groove portion 15 slit hole 20 elastic tire member of outer ring 31 guide rail for train entry / exit door
Claims (2)
芯金として有し、該ハブ部材の外周に弾性材製タイヤ部
材を接合している戸車において、 ハブ部材の円盤状に形成された本体部の外周に沿って係
止凸部を環状に設け、本体部と係止凸部との間に断面凹
状の係止凹溝部を環状に設けると共に、該係止凹溝部の
周全体にわたって一面側から他面側に貫通した複数のス
リット孔を適宜間隔を置いて設け、タイヤ部材が環状の
係止凸部と係止凹溝部にアンダーカット係合しかつスリ
ット孔に食い込んで接合されている戸車。1. A door wheel having a metal hub member rotating on a rotating shaft as a core metal, and an elastic tire member joined to an outer periphery of the hub member, wherein the hub member is formed in a disk shape. A locking convex portion is provided in an annular shape along the outer periphery of the main body portion, and a locking concave groove portion with a concave cross section is provided between the main body portion and the locking convex portion in an annular shape, and the entire circumference of the locking concave groove portion is provided. A plurality of slit holes penetrating from one surface side to the other surface side are provided at appropriate intervals, and the tire member is undercut engaged with the annular locking convex portion and the locking concave groove portion and cut into the slit hole and joined. Door car.
載の戸車。2. The door bogie according to claim 1, which is used as a door for getting on and off a train.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09135839A JP3104644B2 (en) | 1997-05-09 | 1997-05-09 | Door car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09135839A JP3104644B2 (en) | 1997-05-09 | 1997-05-09 | Door car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10311175A true JPH10311175A (en) | 1998-11-24 |
| JP3104644B2 JP3104644B2 (en) | 2000-10-30 |
Family
ID=15160974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP09135839A Expired - Lifetime JP3104644B2 (en) | 1997-05-09 | 1997-05-09 | Door car |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3104644B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005030165A (en) * | 2003-07-11 | 2005-02-03 | Hoshizaki Electric Co Ltd | Cupboard |
-
1997
- 1997-05-09 JP JP09135839A patent/JP3104644B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005030165A (en) * | 2003-07-11 | 2005-02-03 | Hoshizaki Electric Co Ltd | Cupboard |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3104644B2 (en) | 2000-10-30 |
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