JP3014949U - caster - Google Patents
casterInfo
- Publication number
- JP3014949U JP3014949U JP1995000802U JP80295U JP3014949U JP 3014949 U JP3014949 U JP 3014949U JP 1995000802 U JP1995000802 U JP 1995000802U JP 80295 U JP80295 U JP 80295U JP 3014949 U JP3014949 U JP 3014949U
- Authority
- JP
- Japan
- Prior art keywords
- caster
- hawk
- thrust bearing
- mounting plate
- swivel shaft
- 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.)
- Expired - Lifetime
Links
Landscapes
- Rolling Contact Bearings (AREA)
Abstract
(57)【要約】
【目的】車容易に組み付け作業を行うことができ、ホー
クをガタツキなく高い精度で組み付け、円滑に旋回させ
ることができるキャスターを提供する。
【構成】このキャスターは、取付板1に対し垂直な旋回
軸2を介してホーク6が旋回可能に支持され、ホーク6
の下部に車輪7が軸支される。取付板1の下側に合成樹
脂製のスラスト軸受5が旋回軸2に外嵌して取付けら
れ、スラスト軸受5の下側にホーク6の上部が旋回軸2
の下部に嵌込むように取付けられ、旋回軸2の下端にナ
ットを螺合し或は旋回軸2の先端をかしめて、ホーク6
の上部を取付板1に対しスラスト軸受5を介して取付け
た。
(57) [Summary] [Purpose] To provide a caster that can be easily assembled in a vehicle, can be assembled with high accuracy without rattling, and can be smoothly turned. [Structure] This caster is supported by a hawk 6 so that the hawk 6 can turn through a turning shaft 2 which is perpendicular to a mounting plate 1.
A wheel 7 is pivotally supported on the lower part of the. A thrust bearing 5 made of synthetic resin is externally fitted to and attached to the swivel shaft 2 below the mounting plate 1, and an upper portion of the fork 6 is below the thrust bearing 5 and the swivel shaft 2 is located above.
It is attached so as to be fitted into the lower part of the fork.
The upper part of was attached to the mounting plate 1 via a thrust bearing 5.
Description
【0001】[0001]
本考案は、車輪を軸支するホークが、上部の取付部に対して垂直軸(旋回軸) の回りで旋回自在に軸支されるキャスターに関する。 The present invention relates to a caster in which a fork supporting a wheel is pivotally supported around a vertical axis (swivel axis) with respect to an upper mounting portion.
【0002】[0002]
従来、この種のキャスターは、図4に示すように、取付板21の中央に旋回軸 22が垂直に固定され、その旋回軸22の下部に玉軸受用の下ワン23が固定さ れ、下ワン23内に多数の鋼球24が配設される。さらに、車輪20を軸支した ホーク26の上部に上ワン25が固定され、上ワン25の上面内に多数の鋼球2 7が配設され、鋼球27は取付板21の下面に接触する。 Conventionally, in this type of caster, as shown in FIG. 4, a swivel shaft 22 is vertically fixed to the center of a mounting plate 21, and a lower one 23 for ball bearings is fixed to the lower part of the swivel shaft 22. A large number of steel balls 24 are arranged in the one 23. Further, the upper one 25 is fixed to the upper part of the hawk 26 that supports the wheel 20, the many steel balls 27 are arranged in the upper surface of the upper one 25, and the steel balls 27 contact the lower surface of the mounting plate 21. .
【0003】 さらに、このキャスターのホーク26の上部は、下ワン23の上方に延設され 、その内側が下ワン23内の鋼球24に接触し、ホーク26は、その下側を下ワ ン23内の鋼球24に支持され、その上側を上ワン25内の鋼球27に支持され 、旋回軸22の回りを旋回自在である。Further, the upper part of the hawk 26 of this caster is extended above the lower one 23, the inside thereof contacts the steel ball 24 in the lower one 23, and the hawk 26 lowers its lower side. It is supported by a steel ball 24 in 23, and the upper side thereof is supported by a steel ball 27 in the upper one 25, and can be swiveled around the swivel shaft 22.
【0004】[0004]
しかし、上記のように構成される従来のキャスターは、その組み付けを行う際 、上ワン25の上に鋼球27を入れ、下ワン23の上に鋼球24を入れた状態で 、両部材を旋回軸22に嵌込み、その状態で旋回軸22の端部をかしめるように して組み付けているため、組み付け作業が非常に難しく、鋼球24、27の周囲 に間隙つまりガタツキが発生し、組付精度が低下する問題があった。 However, in the conventional caster configured as described above, when assembling the caster, the steel ball 27 is put on the upper one 25 and the steel ball 24 is put on the lower one 23, and both members are put together. Since it is fitted into the swivel shaft 22 and is assembled by caulking the end of the swivel shaft 22 in that state, the assembling work is very difficult and a gap or rattling occurs around the steel balls 24 and 27. There was a problem that the assembly accuracy was reduced.
【0005】[0005]
本考案は、上記の点に鑑みなされたもので、容易に組み付け作業を行うことが でき、ホークをガタツキなく高い精度で組み付け、円滑に旋回させることができ るキャスターを提供することを目的とする。 The present invention has been made in view of the above points, and an object of the present invention is to provide a caster that can be easily assembled and that can assemble a hawk with high precision without rattling and can swivel smoothly. .
【0006】 上記課題を解決するために、本考案のキャスターは、取付板に対し垂直な旋回 軸を介してホークが旋回可能に支持され、ホークの下部に車輪が軸支されてなる キャスターにおいて、取付板の下側に合成樹脂製のスラスト軸受が旋回軸に外嵌 して取付けられ、スラスト軸受の下側にホークの上部が旋回軸の下部に嵌込むよ うに取付けられ、旋回軸の下端にナットを螺合し或は旋回軸の先端をかしめて、 ホークの上部を取付板に対しスラスト軸受を介して取付けたことを特徴とする。In order to solve the above-mentioned problems, the caster of the present invention is a caster in which a hawk is rotatably supported via a turning shaft perpendicular to a mounting plate, and wheels are rotatably supported below the hawk. A thrust bearing made of synthetic resin is mounted on the lower side of the mounting plate by fitting it over the swivel shaft, and an upper part of the hawk is mounted on the lower side of the thrust bearing so that it fits in the lower part of the swivel shaft. It is characterized in that the upper part of the hawk is attached to the attachment plate through the thrust bearing by screwing a nut or caulking the tip of the turning shaft.
【0007】[0007]
このような構成のキャスターでは、製造時、組み付ける際、従来のように、上 ワンと下ワンにボールベアリングを保持させながら旋回軸をかしめるような煩雑 な作業は必要なく、予め組み立てされた合成樹脂製のスラスト軸受を、旋回軸に 嵌込むだけの作業で容易に組み付けることができ、また、ボールベアリング、ニ ードルベアリングが軸受部にないため、ガタツキがなく高い精度で組み付けるこ とができる。 With a caster having such a structure, when manufacturing and assembling, there is no need for the complicated work of crimping the swivel shaft while holding the ball bearings on the upper one and the lower one as in the conventional case. Resin thrust bearings can be easily assembled by simply inserting them into the swivel shaft.Because ball bearings and needle bearings are not present in the bearings, there is no rattling and highly accurate assembly is possible. .
【0008】 このキャスターは、台車等の底部に取付けて使用されるが、合成樹脂製のスラ スト軸受の摩擦係数は、通常のすべり軸受に比較して小さく、充分な荷重を受け ることができるため、車輪が大きな荷重を受けた状態でも容易に旋回することが できる。This caster is used by being attached to the bottom of a trolley, etc., but the thrust coefficient of synthetic resin thrust bearings is smaller than that of ordinary slide bearings, and a sufficient load can be applied. Therefore, it is possible to easily turn even when the wheel receives a large load.
【0009】 また、合成樹脂製のスラスト軸受を使用したキャスターは、鋼球つまり玉軸受 を使用したキャスターに比べ、軽量化が図れ、さらに腐食や摩耗が少なく、長期 間安定した性能で使用することができる。In addition, casters that use thrust bearings made of synthetic resin are lighter in weight than casters that use steel balls or ball bearings, and have less corrosion and wear, and should be used with stable performance for a long period of time. You can
【0010】[0010]
以下、本考案の実施例を図面に基づいて説明する。 Embodiments of the present invention will be described below with reference to the drawings.
【0011】 図1はキャスターの部分断面付き正面図を示し、図2はその縦断面図を示して いる。1は台車等の底部等に取付けられる取付板であり、取付板1の中央に穿設 した孔に旋回軸2が上から座金3を介して嵌入される。その旋回軸2の下部には 合成樹脂製のスラスト軸受5を介してホーク6の上部が嵌入される。旋回軸2の 下部にはおねじが形成され、その部分にナット4が螺合され、このナット4によ りホーク6がスラスト軸受5を介して締付け固定される。FIG. 1 shows a front view of a caster with a partial cross section, and FIG. 2 shows a vertical cross section thereof. Reference numeral 1 denotes a mounting plate which is mounted on the bottom of a dolly or the like, and a swivel shaft 2 is fitted into the hole formed in the center of the mounting plate 1 from above via a washer 3. The upper part of the hawk 6 is fitted into the lower part of the swivel shaft 2 via a thrust bearing 5 made of synthetic resin. A male screw is formed in the lower part of the swivel shaft 2, and a nut 4 is screwed into this portion, and a fork 6 is tightened and fixed by the nut 4 via a thrust bearing 5.
【0012】 スラスト軸受5は、図3に示すように、合成樹脂で形成されたドーナッツカッ プ形の上ケース5aと下ケース5bを、間に合成樹脂製のリングプレート5cを 介在させた状態で回動可能に組み付け、内部にグリースを充填して形成される。As shown in FIG. 3, the thrust bearing 5 includes a donut cup-shaped upper case 5a and a lower case 5b made of synthetic resin, with a synthetic resin ring plate 5c interposed therebetween. It is rotatably assembled and filled with grease.
【0013】 上ケース5aと下ケース5bの内側には、相互に嵌合するシール壁が円周状に 形成され、内部がシールされた状態で上ケース5aと下ケース5bは相互に回動 可能に組み付けられる。Inside the upper case 5a and the lower case 5b, mutually interfitting seal walls are formed in a circumferential shape, and the upper case 5a and the lower case 5b can rotate relative to each other in a state where the inside is sealed. Be assembled into.
【0014】 内部に挿入される合成樹脂製のリングプレート5cの表面には円周方向及びラ ジアル方向に溝が形成される。上ケース5aと下ケース5b間の荷重はこのリン グプレート5cの上面と下面にかかるが、その溝や表面に介在されるグリースに より、大荷重が上下方向にかかった場合でも、上ケース5aと下ケース5b間の 摩擦係数は小さく、ケースが変形したり摩擦することがなく、容易に回動するこ とができる。Grooves are formed in the circumferential direction and the radial direction on the surface of the synthetic resin ring plate 5c inserted inside. The load between the upper case 5a and the lower case 5b is applied to the upper surface and the lower surface of the ring plate 5c. Even if a large load is applied in the vertical direction due to the grease interposed in the groove or surface of the ring plate 5c, The coefficient of friction between the lower cases 5b is small, and the cases can be easily rotated without deformation or friction.
【0015】 上ケース5aの上部にカラー部が突設され、そのカラー部を取付板1と旋回軸 2の間に挿入するように、スラスト軸受5は組み付けられる。また、ホーク6の 上部には円形凹部が形成され、その円形凹部にスラスト軸受5が入れられ、ナッ ト4を旋回軸2のおねじ部に螺合して、ホーク6を取付板1に対し回動可能に組 み付ける。A collar portion is provided so as to project from the upper portion of the upper case 5 a, and the thrust bearing 5 is assembled so that the collar portion is inserted between the mounting plate 1 and the rotary shaft 2. Further, a circular recess is formed in the upper part of the hawk 6, the thrust bearing 5 is inserted in the circular recess, and the nut 4 is screwed into the male screw portion of the swivel shaft 2 to attach the hawk 6 to the mounting plate 1. Assemble so that it can rotate.
【0016】 ホーク6の下部に、車輪7が水平な回転軸8と玉軸受9を介して回転自在に軸 支され、車輪7はホーク6の前後方向に転動し、ホーク6は取付板1に対し旋回 軸2を中心に旋回する。A wheel 7 is rotatably supported on a lower portion of the hawk 6 via a horizontal rotary shaft 8 and a ball bearing 9, the wheel 7 rolls in the front-back direction of the hawk 6, and the hawk 6 is attached to the mounting plate 1. On the other hand, it turns around the axis 2.
【0017】 このような構成のキャスターは、組み立てる際、取付板1の中央に嵌挿された 旋回軸2の下部に、スラスト軸受5を嵌込み、その下からホーク6を嵌込み、ナ ット4を旋回軸2の下部に螺合して、適度な力で締付るだけの簡単な作業で組立 ることができ、また、従来の鋼球を使用する場合のように、軸受部にガタツキが 生じないため、高精度で組み付けることができる。When assembling the caster having such a configuration, the thrust bearing 5 is fitted to the lower part of the revolving shaft 2 which is fitted and inserted in the center of the mounting plate 1, and the fork 6 is fitted from below the thrust bearing 5 to fit the nut. 4 can be screwed into the lower part of the swivel shaft 2 and can be assembled by a simple work such as tightening with an appropriate force. In addition, as in the case of using a conventional steel ball, there is rattling in the bearing part. Since it does not occur, it can be assembled with high precision.
【0018】 さらに、このキャスターは台車等の底部に取付けて使用されるが、合成樹脂製 のスラスト軸受は上下からの大荷重を受けても、殆ど摩擦や摩耗がなく、ホーク 6(車輪7)を円滑に旋回させることができる。また、合成樹脂製のスラスト軸 受を使用しているため、従来の上下ワンと鋼球を使用した場合に比べ、キャスタ ーを軽量化することができ、金属が腐食しやすい環境で使用した場合でも、長期 間良好に使用することができる。Further, although this caster is used by being attached to the bottom of a trolley or the like, the thrust bearing made of synthetic resin has almost no friction or wear even when subjected to a large load from above and below, and the hawk 6 (wheel 7). Can be turned smoothly. Also, because the thrust bearing made of synthetic resin is used, the casters can be made lighter than when using the conventional upper and lower ones and steel balls, and when used in an environment where metals are easily corroded. However, it can be used satisfactorily for a long time.
【0019】 なお、上記実施例では、ナット4を使用して組み付けたが、ナットを使用せず に旋回軸の下端部をかしめて組み付けることもできる。In the above embodiment, the nut 4 is used for assembly, but it is also possible to caulk the lower end of the turning shaft for assembly without using the nut.
【図1】本考案の一実施例を示すキャスターの部分断面
付き正面図である。FIG. 1 is a front view with a partial cross section of a caster showing an embodiment of the present invention.
【図2】図1のキャスターの部分断面付き側面図であ
る。2 is a side view with a partial cross section of the caster of FIG. 1. FIG.
【図3】スラスト軸受の斜視図である。FIG. 3 is a perspective view of a thrust bearing.
【図4】従来のキャスターの部分断面付き側面図であ
る。FIG. 4 is a side view with a partial cross section of a conventional caster.
1−取付板、 2−旋回軸、 5−スラスト軸受、5a−上ケース、 5b−下ケース、5c−リングプレート、 6−ホーク、 7−車輪。 1-mounting plate, 2-swivel shaft, 5-thrust bearing, 5a-upper case, 5b-lower case, 5c-ring plate, 6-hawk, 7-wheel.
Claims (2)
クが旋回可能に支持され、該ホークの下部に車輪が軸支
されてなるキャスターにおいて、 該取付板の下側に合成樹脂製のスラスト軸受が該旋回軸
に外嵌して取付けられ、該スラスト軸受の下側にホーク
の上部が該旋回軸の下部に嵌込むように取付けられ、該
旋回軸の下端にナットを螺合して或は該旋回軸の先端を
かしめて、該ホークの上部を取付板に対し該スラスト軸
受を介して取付けたことを特徴とするキャスター。1. A caster in which a hawk is rotatably supported via a swing shaft perpendicular to a mounting plate, and a wheel is pivotally supported at a lower portion of the hawk, and a caster made of a synthetic resin is provided below the mounting plate. A thrust bearing is externally fitted to and attached to the swivel shaft, an upper part of the hawk is attached to a lower side of the thrust bearing so as to fit into a lower part of the swivel shaft, and a nut is screwed to a lower end of the swivel shaft. Alternatively, the caster is characterized in that the upper end of the hawk is attached to the attachment plate via the thrust bearing by caulking the tip of the pivot shaft.
ースと下ケースを有し、該上ケースと下ケースが内部に
合成樹脂製のリングプレート及びグリースを挿入した状
態で相互に回動可能に嵌合されている請求項1記載のキ
ャスター。2. The thrust bearing has an upper case and a lower case made of synthetic resin, and the upper case and the lower case are rotatable relative to each other with a synthetic resin ring plate and grease inserted therein. The caster according to claim 1, which is fitted to the caster.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1995000802U JP3014949U (en) | 1995-02-20 | 1995-02-20 | caster |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1995000802U JP3014949U (en) | 1995-02-20 | 1995-02-20 | caster |
Publications (1)
Publication Number | Publication Date |
---|---|
JP3014949U true JP3014949U (en) | 1995-08-22 |
Family
ID=43150536
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1995000802U Expired - Lifetime JP3014949U (en) | 1995-02-20 | 1995-02-20 | caster |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3014949U (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3442034B2 (en) | 2000-06-22 | 2003-09-02 | 株式会社ユーエイキャスター | caster |
JP2014015199A (en) * | 2012-07-05 | 2014-01-30 | Hinomoto Jomae Ltd | Uniaxial caster |
JP2015009714A (en) * | 2013-06-28 | 2015-01-19 | ライオンハイジーン株式会社 | Caster, and food container conveying carriage equipped with the same |
-
1995
- 1995-02-20 JP JP1995000802U patent/JP3014949U/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3442034B2 (en) | 2000-06-22 | 2003-09-02 | 株式会社ユーエイキャスター | caster |
JP2014015199A (en) * | 2012-07-05 | 2014-01-30 | Hinomoto Jomae Ltd | Uniaxial caster |
JP2015009714A (en) * | 2013-06-28 | 2015-01-19 | ライオンハイジーン株式会社 | Caster, and food container conveying carriage equipped with the same |
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