JP4995529B2 - Caster wheel mounting structure - Google Patents

Caster wheel mounting structure Download PDF

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JP4995529B2
JP4995529B2 JP2006266189A JP2006266189A JP4995529B2 JP 4995529 B2 JP4995529 B2 JP 4995529B2 JP 2006266189 A JP2006266189 A JP 2006266189A JP 2006266189 A JP2006266189 A JP 2006266189A JP 4995529 B2 JP4995529 B2 JP 4995529B2
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caster
wheel
hole
bearing
mounting
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JP2008081059A (en
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朋寛 粕谷
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株式会社三貴工業所
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本発明は例えば車椅子に使用されるキャスターの車輪取付け構造に関するものである。   The present invention relates to a wheel mounting structure for casters used in, for example, a wheelchair.

車椅子の前部には車椅子の進行方向をスムーズに変えられるよう、左右一対のキャスターが取付けられている。
従来の、図８に示すようなキャスター２１のフォーク２２に車軸２４を介して車輪３０を支持せしめ、該フォーク２２をキャスター取付け枠２１Ａに左右回転自在に取付けた構成が開示されている。 A pair of left and right casters is attached to the front of the wheelchair so that the direction of travel of the wheelchair can be changed smoothly.
A conventional configuration in which a wheel 30 is supported on a fork 22 of a caster 21 as shown in FIG. 8 via an axle 24 and the fork 22 is mounted on a caster mounting frame 21A so as to be rotatable left and right is disclosed.

特開２００６−２１３２３１号公報JP 2006-213231 A 特開２００５−２１９６９２号公報Japanese Patent Application Laid-Open No. 2005-219692 特開平６−１４３９０８号公報JP-A-6-143908

上記従来の構成では例えば車椅子の高さを調節したり、車椅子のサイズが変わると、車椅子の高さやサイズに対応したキャスターを複数個準備しておいて、そのつどキャスターを取替える必要があった。   In the above conventional configuration, for example, when the height of the wheelchair is adjusted or the size of the wheelchair is changed, it is necessary to prepare a plurality of casters corresponding to the height and size of the wheelchair and to change the casters each time.

本発明は一つのキャスターで例えば車椅子の高さやサイズに対応することが出来るようにすることを目的とし、キャスター１の車軸を支持するキャスターフォーク２の一対の支脚３，３の先端部に長孔形状の取付け孔４，４を一端が上位に他端が下位になるようにそれぞれ設けておき、
該取付け孔４の長孔形状に対応する形状であり該取付け孔４に適嵌する嵌合部６と、該嵌
合部６の長手方向に沿って設けられ径の異なる複数個の軸受け孔８１Ａ，８１Ｂとからなる調整具５を該キャスターフォーク２の一対の支脚３，３の取付け孔４，４にそれぞれ嵌着し、
該車輪１０のサイズに応じて該調整具５１の複数個の軸受け孔８１Ａ，８１Ｂのうちの一個を選択し、該軸受け孔８１Ａ，８１Ｂに該キャスター１の車輪１０の軸１１を支持せしめたキャスター１の車輪取付け構造を骨子とするものである。
また該キャスターフォーク２の一対の支脚３，３の先端部に設けられた長孔形状の取付け孔４，４は一端が上位に他端が下位になるようにそれぞれ設定されており、該径の異なる軸受け孔８１Ａ，８１Ｂは該嵌合部６１の長手方向両端部に設けられており、該車輪１０のサイズに応じて該調製具５１の一対の軸受け孔８１Ａ，８１Ｂのうちの一個を選択し、
該調整具５１を該軸受け孔８１Ａ，８１Ｂが下側に配置されるように該キャスターフォークク２の一対の支脚３，３の取付け孔４，４にそれぞれ嵌着するか、
または反転させて該軸受け孔８１Ａ，８１Ｂが上側に配置されるように該取付け孔４，４に嵌着した上で該軸受け孔８１Ａ，８１Ｂに該キャスター１の車輪１０の軸１１を支持せしめることによって該車輪の取付け位置を上下に調節可能とすることが望ましい。
本発明のキャスターの車輪取付け構造は特に車椅子に有用である。 An object of the present invention is to make it possible to cope with, for example, the height and size of a wheelchair with a single caster. A long hole is formed in the distal ends of a pair of support legs 3 and 3 of a caster fork 2 that supports an axle of the caster 1. The mounting holes 4 and 4 having a shape are provided so that one end is higher and the other end is lower.
The fitting portion 6 has a shape corresponding to the shape of the long hole of the mounting hole 4 and fits in the mounting hole 4 and a plurality of bearing holes 81A provided along the longitudinal direction of the fitting portion 6 and having different diameters. , 81B are fitted into the mounting holes 4, 4 of the pair of support legs 3, 3 of the caster fork 2, respectively.
A caster in which one of the plurality of bearing holes 81A and 81B of the adjusting tool 51 is selected according to the size of the wheel 10, and the shaft 11 of the wheel 10 of the caster 1 is supported in the bearing holes 81A and 81B. The wheel mounting structure of 1 is the main point.
The elongated hole-shaped mounting holes 4 and 4 provided at the distal ends of the pair of support legs 3 and 3 of the caster fork 2 are set so that one end is higher and the other is lower. Different bearing holes 81A and 81B are provided at both ends in the longitudinal direction of the fitting portion 61, and one of the pair of bearing holes 81A and 81B of the preparation tool 51 is selected according to the size of the wheel 10. ,
The adjustment tool 51 is fitted into the mounting holes 4 and 4 of the pair of support legs 3 and 3 of the caster fork 2 so that the bearing holes 81A and 81B are arranged on the lower side,
Alternatively, the shaft 11 of the wheel 10 of the caster 1 is supported by the bearing holes 81A and 81B after being fitted in the mounting holes 4 and 4 so that the bearing holes 81A and 81B are arranged on the upper side. Therefore, it is desirable that the mounting position of the wheel can be adjusted up and down.
The caster wheel mounting structure of the present invention is particularly useful for wheelchairs.

（削除） ( Delete )

〔作用〕
（請求項１）
キャスターフォーク２の一対の支脚３，３の先端部に設けた長孔形状の取付け孔４，４
に調整具５１の嵌合部６１をそれぞれ嵌着する。この状態で車輪１０のサイズに対応して
該調整具５１の複数個の軸受け孔８１Ａ，８１Ｂのうちの一個を選んで該軸受け孔８１Ａ
または８１Ｂにキャスター１の車輪１０の軸１１を支持せしめる。 [Action]
(Claim 1 )
Long hole-shaped mounting holes 4, 4 provided at the distal ends of the pair of support legs 3, 3 of the caster fork 2
The fitting portions 61 of the adjustment tool 51 are fitted into the respective parts. In this state, one of the plurality of bearing holes 81A and 81B of the adjusting tool 51 is selected corresponding to the size of the wheel 10 to select the bearing hole 81A.
Alternatively, the shaft 11 of the wheel 10 of the caster 1 is supported by 81B.

（請求項２）
キャスターフォーク２の一対の支脚３，３の先端部に設けた長孔形状の取付け孔４，４は一端が上位に、他端が下位になるように設定されており、該取付け孔４，４に調整具５２の嵌合部６２をそれぞれ嵌着する。この状態で例えば該調整具５２の車輪１０のサイズに対応して選ばれた一方の軸受け孔８２Ａまたは８２Ｂが下側に配置されている。そして該軸受け孔８２Ａまたは８２Ｂにキャスター１の車輪１０の軸１１を支持せしめる。該調整具５２を反転して該軸受け孔８２Ａまたは８２Ｂが上側に配置されているように設定して該キャスターフォーク２の支脚３，３の取付け孔４，４にそれぞれ嵌着し、該調整具５２の該軸受け孔８２Ａまたは８２Ｂにキャスター１の車輪１０の軸１１を支持せしめると、該車輪１０の取付け位置は前の位置よりもキャスターフォーク２に対して上方へ移動する。 (Claim 2 )
The mounting holes 4, 4 the upper one end of the long hole shape provided at the tip portions of the pair of support legs 3,3 of caster fork 2, and the other end is set to be lower, the mounting holes 4, 4 The fitting portions 62 of the adjustment tool 52 are fitted into the respective parts. In this state, for example, one bearing hole 82A or 82B selected corresponding to the size of the wheel 10 of the adjuster 52 is disposed on the lower side. The shaft 11 of the wheel 10 of the caster 1 is supported in the bearing hole 82A or 82B. The adjustment tool 52 is inverted so that the bearing hole 82A or 82B is disposed on the upper side, and is fitted into the mounting holes 4 and 4 of the support legs 3 and 3 of the caster fork 2, respectively. When the shaft 11 of the wheel 10 of the caster 1 is supported in the bearing hole 82A or 82B of 52, the mounting position of the wheel 10 moves upward relative to the caster fork 2 from the previous position.

〔効果〕
したがって本発明においては、一つのキャスター１で、該調整具５１，５２の複数個の軸受け孔８１Ａ、８１Ｂ、あるいは軸受け孔８２Ａ，８２Ｂを選択することによって、更には調整具５、５２を反転させるだけの簡単な手段で、キャスターフォーク２に対する車輪１０の上下取付け位置を調整することが出来、種々のサイズの車輪１０を取付けることが出来る。 〔effect〕
Therefore, in the present invention, the adjustment tools 5 and 52 are further reversed by selecting the plurality of bearing holes 81A and 81B or the bearing holes 82A and 82B of the adjustment tools 51 and 52 with one caster 1. With only simple means, the vertical mounting position of the wheel 10 with respect to the caster fork 2 can be adjusted, and the wheel 10 of various sizes can be mounted.

本発明の第１実施例（請求項１）を図１〜図４に示す。図において、キャスター１のフ
ォーク２はキャスター取付け枠１Ａに図示しないベアリングによって左右に回動自在に取
付けられている。
該キャスターフォーク２は左右一対の支脚３，３を有し、各支脚３，３の先端部には横方向に長孔形状の取付け孔４１，４１が設けられ、該取付け孔４１，４１には車輪のサイズを調整する調整具５１（サイズ調整具５１）がそれぞれ嵌着されている。図２に示すように、該サイズ調整具５１には該キャスターフォーク２の支脚３，３の取付け孔４１，４１の長孔形状に対応する形状であって該取付け孔４１に適嵌する嵌合部６１と、該嵌合部６１の外側周縁に配置されているフランジ部７１とからなり、長手方向に沿って２個の径の異なる軸受け孔８１Ａ，８１Ｂが設けられている。該軸受け孔８１Ａの径は該軸受け孔８１Ｂの径よりも大きく設定されており、該軸受け孔８１Ａ，８１Ｂにはそれぞれカラー９１Ａ，９１Ｂが付されている。 A first embodiment (claim 1) of the present invention is shown in FIGS. In the figure, a fork 2 of a caster 1 is attached to a caster attachment frame 1A so as to be rotatable left and right by a bearing (not shown).
The caster fork 2 has a pair of left and right support legs 3, 3, and attachment holes 41, 41 that are elongated in the lateral direction are provided at the distal ends of the support legs 3, 3. An adjuster 51 (size adjuster 51) for adjusting the size of the wheel is fitted. As shown in FIG. 2, the size adjuster 51 has a shape corresponding to the shape of the long holes of the mounting holes 41, 41 of the support legs 3, 3 of the caster fork 2 and fits appropriately in the mounting holes 41. The portion 61 and a flange portion 71 disposed on the outer periphery of the fitting portion 61 are provided with two bearing holes 81A and 81B having different diameters along the longitudinal direction. The diameter of the bearing hole 81A is set larger than the diameter of the bearing hole 81B, and collars 91A and 91B are attached to the bearing holes 81A and 81B, respectively.

（削除） ( Delete )

上記キャスターフォーク２に車輪１０Ａ（１０Ｂ）を取付けるには、該車輪１０Ａ（１０Ｂ）の軸孔１１にベアリング１２を内挿し、その両端に袋ナット１３，１３を螺着して該ベアリング１２が該車輪１０Ａ（１０Ｂ）の軸孔１１から抜け出さないようにする。
そして上記のようにしてベアリング１２を装着した車輪１０Ａ（１０Ｂ）を該フォーク２の支脚３，３間に挿入し、車軸となるボルト１４を一方の該位置調整具５１の軸受け孔８、車輪１０のベアリング１２の軸孔１２Ａ、更に他方の該位置調整具５１の軸受け孔８に挿通して袋ナット１５を該ボルト１４に螺着する。 In order to attach the wheel 10A (10B) to the caster fork 2, the bearing 12 is inserted into the shaft hole 11 of the wheel 10A (10B) , and the cap nuts 13 and 13 are screwed to both ends thereof. The wheel 10A (10B) is prevented from coming out of the shaft hole 11.
Their to wheels 10A fitted with a bearing 12 as described above the (10B) inserted between the support legs 3,3 of the fork 2, the bearing hole 8 of the bolt 14 as the axles one of the positioning tool 51, The cap nut 15 is screwed to the bolt 14 by being inserted into the shaft hole 12A of the bearing 12 of the wheel 10 and the bearing hole 8 of the other position adjusting tool 51 .

このようにして該車輪１０Ａ（１０Ｂ）は図４に示すようにキャスター１に取付けられる。 In this way, the wheel 10A (10B) is attached to the caster 1 as shown in FIG .

（削除） ( Delete )

本実施例では大きなサイズの車輪１０Ａ（実線で示す）の場合には大きな径の軸受け孔
８１Ａを選択し、小さなサイズの車輪１０Ｂ（点線で示す）の場合には小さな径の軸受け
孔８１Ｂを選択して取付ける。なお本発明においてはサイズ調整具５１の軸受け孔は３個
以上設けられてもよい。 In this embodiment, a large-diameter bearing hole 81A is selected for a large-sized wheel 10A (shown by a solid line), and a small-diameter bearing hole 81B is selected for a small-sized wheel 10B (shown by a dotted line). And install. In the present invention, three or more bearing holes of the size adjuster 51 may be provided.

図５、イ、ロには本発明の第２実施例（請求項２）が示される。本実施例ではキャスターフォーク２の各支脚３，３の先端部には、前端が低く、後端が高く傾斜している長孔形状の取付け孔４，４がそれぞれ設けられており、両端部にカラー９２Ａ，９２Ｂを付した径の異なる軸受け孔８２Ａ，８２Ｂが設けられている調整具５２（位置サイズ調整具５２）が使用される。該位置サイズ調整具５２は第１実施例で使用されたサイズ調整具５１と同形状同構造に設定されても良く、図２に示すように嵌合部６２と、該嵌合部６２の外側周縁に配置されているフランジ部７２とからなる。そして大きなサイズの車輪１０Ａ（実線で示す）の場合には大きな径の軸受け孔８２Ａを選択して取付けるが、その場合図５イに示すように該位置サイズ調整具５２の大きな径の軸受け孔８２Ａが下側に配置されるようにするか、あるいは該位置サイズ調整具５２を反転させて該支脚３，３の取付け孔４，４にそれぞれ嵌着し、図５ロに示すように該軸受け孔８２Ａが上側に配置されるようにする。かくして図５イに示す車輪１０Ａ取付け状態では該車輪１０Ａは該キャスター１において下部に位置し、図５ロに示す車輪１０Ａ取付け状態では該車輪１０Ａは該キャスター１において上部に位置することになる。 5, it, the second embodiment of the present invention to B (claim 2) is shown. In the present embodiment , the front end portions of the support legs 3 and 3 of the caster fork 2 are respectively provided with long hole-shaped mounting holes 4 and 4 having a low front end and a high rear end, which are inclined at both ends. An adjusting tool 52 (position size adjusting tool 52) provided with bearing holes 82A and 82B having different diameters with collars 92A and 92B is used. The location size adjuster 52 may be set in the same shape same structure as the size adjustment tool 51 used in the first embodiment, the fitting portion 62 as shown in FIG. 2, the outer fitting portion 62 It consists of a flange portion 72 arranged at the periphery. And although in the case of the wheel 10A of the large size (indicated by a solid line) attached to select a bearing hole 82A of larger diameter, the bearing holes 82A of the large diameter of the position size adjustment tool 52, as shown in this case Figure 5 b There either to be placed on the lower side or is inverted the position size adjuster 52 respectively fitted to the mounting holes 4, 4 of said supporting legs 3, 3, shaft receiving bore as shown in FIG. 5 (b) 82A is arranged on the upper side. Thus the wheel 10A at the wheel 10A mounted state shown in FIG. 5 b is located at the bottom in the caster 1, the wheel 10A at the wheel 10A mounted state shown in FIG. 5 (b) will be located above the said casters.

小さいサイズの車輪１０Ｂ（点線で示す）を取付ける場合には小さな径の軸受け孔８２
Ｂを選択して取付けるが、その場合には大きなサイズの車輪１０Ａを取付ける場合とは逆
に、図７イに示す車輪１０Ｂ取付け状態では該車輪１０Ｂは該キャスター１において上部
に位置し、図７ロに示す車輪１０Ｂ取付け状態では該車輪１０Ｂは該キャスター１におい
て下部に位置することになる。 When mounting a small-sized wheel 10B (shown by a dotted line), a small-diameter bearing hole 82 is used.
B is selected and mounted. In this case, contrary to the case of mounting a large-sized wheel 10A, in the mounted state of the wheel 10B shown in FIG. 7A, the wheel 10B is positioned at the upper portion of the caster 1, and FIG. In the state where the wheel 10 </ b> B is attached, the wheel 10 </ b> B is positioned in the lower part of the caster 1.

本発明はキャスターに取付ける車輪の上下位置を簡単に調節出来、また一個の調整具で
サイズの異なる車輪に対応出来るので、例えば車椅子に利用すると車椅子の高さが簡単に
調節出来、あるいは一種類のキャスターで種々のサイズの車椅子に適用出来るから、産業
上利用可能である。 The present invention can easily adjust the vertical position of the wheel attached to the caster, and can be used for a wheel of different sizes with one adjustment tool. For example, when used in a wheelchair, the height of the wheelchair can be easily adjusted, or one kind of wheel Since it can be applied to wheelchairs of various sizes with casters, it can be used industrially.

第１実施例のキャスター取付け構造の分解図。 The exploded view of the caster attachment structure of 1st Example . 第１実施例の調整具の斜視図。 The perspective view of the adjustment tool of 1st Example . 第１実施例の車輪取付け状態のキャスター側面図。The caster side view of the wheel attachment state of 1st Example. 車輪を取り付けたキャスターの斜視図。 The perspective view of the caster which attached the wheel . 第２実施例において、イは大きな径の軸受け孔を下方に配置した車輪取付け状態のキャスターの側面図であり、ロは小さな径の軸受け孔を下方に配置した車輪取付け状態のキャスターの側面図。In the second embodiment, A is a side view of a caster in a wheel-mounted state in which a large-diameter bearing hole is disposed below, and B is a side view of a caster in a wheel-mounted state in which a small-diameter bearing hole is disposed below. 従来例のキャスター側面図。The caster side view of a prior art example.

１、２１ キャスター
５１，５２ 調整具
８１Ａ，８１Ｂ，８２Ａ，８２Ｂ 軸受け孔
１０、３０ 車輪
1,21 caster
5 1,52 Adjuster
8 1A, 81B, 82A, 82B Bearing hole
10, 30 wheels

Claims (3)

キャスターの車軸を支持するキャスターフォークの一対の支脚の先端部に長孔形状の取付け孔をそれぞれ設けておき、
該取付け孔の長孔形状に対応する形状であり該取付け孔に適嵌する嵌合部と、該嵌合部の長手方向に沿って設けられ径の異なる複数個の軸受け孔とからなる調整具を該キャスターフォークの一対の支脚の取付け孔にそれぞれ嵌着し、
該車輪のサイズに応じて該調製具の複数個の軸受け孔のうちの一個を選択し、該軸受け孔に該キャスターの車輪の軸を支持せしめたことを特徴とするキャスターの車輪取付け構造。 A long hole-shaped mounting hole is provided at the tip of the pair of support legs of the caster fork that supports the axle of the caster,
An adjusting tool having a shape corresponding to the shape of the long hole of the mounting hole, and a fitting portion that fits into the mounting hole, and a plurality of bearing holes that are provided along the longitudinal direction of the fitting portion and have different diameters. Are fitted into the mounting holes of the pair of support legs of the caster fork,
A caster wheel mounting structure, wherein one of a plurality of bearing holes of the preparation tool is selected according to the size of the wheel, and the wheel shaft of the caster is supported in the bearing hole. 該キャスターフォークの一対の支脚の先端部に設けられた長孔形状の取付け孔は一端が上位に他端が下位になるようにそれぞれ設定されており、該径の異なる軸受け孔は該嵌合部の長手方向両端部に設けられており、該車輪のサイズに応じて該調製具の一対の軸受け孔のうちの一個を選択し、
該調整具を該軸受け孔が下側に配置されるように該キャスターフォークの一対の支脚の取付け孔にそれぞれ嵌着するか、
または反転させて該軸受け孔が上側に配置されるように該取付け孔に嵌着した上で該軸受け孔に該キャスターの車輪の軸を支持せしめることによって該車輪の取付け位置を上下に調節可能とした請求項１に記載のキャスターの車輪取付け構造。 The elongated hole-shaped mounting holes provided at the tip ends of the pair of support legs of the caster fork are set so that one end is higher and the other end is lower, and the bearing holes having different diameters are the fitting portions. Is selected at one of the pair of bearing holes of the preparation tool according to the size of the wheel,
The adjustment tool is fitted into the mounting holes of the pair of support legs of the caster fork so that the bearing hole is disposed on the lower side,
Alternatively, the mounting position of the wheel can be adjusted up and down by fitting the mounting hole so that the bearing hole is arranged on the upper side and supporting the wheel shaft of the caster in the bearing hole. The caster wheel mounting structure according to claim 1 . 該キャスターは車椅子のキャスターである請求項１又は請求項２に記載のキャスターの車輪取付け構造。
The caster wheel mounting structure according to claim 1 , wherein the caster is a wheelchair caster.
JP2006266189A 2006-09-29 2006-09-29 Caster wheel mounting structure Active JP4995529B2 (en)

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US5190301A (en) * 1991-03-13 1993-03-02 Rollerblade, Inc. Fastening system for the wheels of an in-line roller skate
JPH05262102A (en) * 1992-03-23 1993-10-12 Matsunaga Seisakusho:Kk Caster for light vehicle
JP3960656B2 (en) * 1997-05-12 2007-08-15 テクストロン インコーポレーテッド Fastening device with emergency release by a nut body that can be expanded
JP2001224633A (en) * 2000-02-17 2001-08-21 Ox Engineering:Kk Axle shaft location-adjusting device for wheelchair

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