JP2008081059A - Wheel fitting structure of caster - Google Patents

Wheel fitting structure of caster Download PDF

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JP2008081059A
JP2008081059A JP2006266189A JP2006266189A JP2008081059A JP 2008081059 A JP2008081059 A JP 2008081059A JP 2006266189 A JP2006266189 A JP 2006266189A JP 2006266189 A JP2006266189 A JP 2006266189A JP 2008081059 A JP2008081059 A JP 2008081059A
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caster
wheel
hole
mounting
bearing
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JP4995529B2 (en
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Tomohiro Kasuya
朋寛 粕谷
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MIKI KOGYOSHO KK
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MIKI KOGYOSHO KK
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a caster allowing easy adjustment of the fitting position of a wheel and capable of coping with wheels of various sizes. <P>SOLUTION: In the wheel fitting structure of a caster, long holes 4 and 4 for fitting are provided in ends of a pair of support legs 3 and 3 of a caster fork 2 supporting an axle 11 of the caster 1 so that one end of the long hole is positioned upper and the other end is positioned lower, and the shaft 11 of the wheel 10 of the caster 1 is supported by a fitting portion 6 having a shape corresponding to the long hole shape of the fitting hole 4 so as to be fitted in the hole 4 for fitting and a bearing hole 8 of an adjuster 5 provided in one longitudinal end of the fitting portion 6. The adjuster 5 is fitted in the holes 4 and 4 for fitting, reversing the adjuster 5 so that the bearing hole 8 is arranged on the upper side, so as to vertically adjust the wheel fitting position. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

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の長手方向一端部に設けられている軸受け孔８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、該調整具５の軸受け孔８に該キャスター１の車輪１０の軸１１を支持せしめた構成であって、
該調整具５を該軸受け孔８が下側に配置されるように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にそれぞれ嵌着するか、
または反転させて該軸受け孔８が上側に配置されるように該取付け孔４に嵌着することによって該車輪１０の取付け位置を上下に調節可能としたキャスターの車輪取付け構造、
およびキャスター１の車軸を支持するキャスターフォークの２一対の支脚３，３の先端部に長孔形状の取付け孔４１，４１をそれぞれ設けておき、
該取付け孔４１の長孔形状に対応する形状であり該取付け孔４１に適嵌する嵌合部６１と、該嵌合部６１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５１を該キャスターフォークの２一対の支脚３，３の取付け孔４１，４１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の車輪取付け構造を骨子とするものである。
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. The mounting holes 4 and 4 having a shape are provided so that one end is higher and the other end is lower.
An adjustment comprising a fitting portion 6 having a shape corresponding to the shape of the long hole of the attachment hole 4 and fitting into the attachment hole 4 and a bearing hole 8 provided at one end portion in the longitudinal direction of the fitting portion 6 The tool 5 is fitted into the mounting holes 4 and 4 of the pair of support legs 3 and 3 of the caster fork 2, and the shaft 11 of the wheel 10 of the caster 1 is supported in the bearing hole 8 of the adjuster 5. There,
The adjuster 5 is fitted into the mounting holes 4 of the pair of support legs 3 and 3 of the caster fork 2 so that the bearing hole 8 is disposed on the lower side,
Alternatively, a caster wheel mounting structure in which the mounting position of the wheel 10 can be adjusted up and down by fitting in the mounting hole 4 so that the bearing hole 8 is disposed on the upper side by being reversed.
In addition, long hole-shaped attachment holes 41, 41 are provided at the distal ends of the two pairs of support legs 3, 3 of the caster fork that supports the axle of the caster 1,
A fitting portion 61 that has a shape corresponding to the shape of the long hole of the mounting hole 41 and fits in the mounting hole 41, and a plurality of bearing holes 81A that are provided along the longitudinal direction of the fitting portion 61 and have different diameters. , 81B are fitted into the mounting holes 41, 41 of the two pairs of support legs 3, 3 of the caster fork,
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 is the main point.
The caster wheel mounting structure of the present invention is particularly useful for wheelchairs.

〔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５の嵌合部６をそれぞれ嵌着する。この状態で例えば該調整具５の軸受け孔８が下側に配置されている。そして該軸受け孔８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５を反転して該軸受け孔８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の一対の支脚３，３の取付け孔４，４にそれぞれ嵌着し、該調整具５の該軸受け孔８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。 [Action]
(Claim 1)
The fitting portions 6 of the adjustment tool 5 are fitted into the long-hole-shaped attachment holes 4 and 4 provided at the distal ends of the pair of support legs 3 and 3 of the caster fork 2, respectively. In this state, for example, the bearing hole 8 of the adjusting tool 5 is disposed on the lower side. The shaft 11 of the wheel 10 of the caster 1 is supported in the bearing hole 8. The adjustment tool 5 is inverted so that the bearing hole 8 is disposed on the upper side, and is fitted into the mounting holes 4 and 4 of the pair of 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 8 of 5, the mounting position of the wheel 10 moves upward relative to the caster fork 2 from the previous position.

（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。 (Claim 2)
The fitting portions 61 of the adjustment tool 51 are fitted into the long-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, respectively. In this state, one of the plurality of bearing holes 81A, 81B of the adjusting tool 51 is selected corresponding to the size of the wheel 10, and the shaft 11 of the wheel 10 of the caster 1 is supported in the bearing hole 81A or 81B.

（請求項３）
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 3)
The fitting portions 62 of the adjustment tool 52 are fitted into the long hole-shaped attachment holes 4, 4 provided at the distal ends of the pair of support legs 3, 3 of the caster fork 2. 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、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、あるいは該調整具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 vertical mounting position of the wheel 10 with respect to the caster fork 2 can be adjusted with a simple caster 1 by simply reversing the adjusting tools 5 and 52, or the adjusting tools 51, By selecting 52 bearing holes 81A, 81B or bearing holes 82A, 82B, wheels 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 4, 4 each having a long hole shape with a low front end and a high rear end are provided at the front ends of the support legs 3, 3. ing.

図２に示す５は車輪の上下位置を調整するための調整具（位置調整具５）であって、該位置調整具５は該キャスターフォーク２の支脚３，３の取付け孔４，４の長孔形状に対応する形状であって該取付け孔４に適嵌する嵌合部６と、該嵌合部６の外側周縁に配置されているフランジ部７と、該嵌合部６の長手方向一端部にはカラー９を付した軸受け孔８が設けられている。   2 is an adjuster (position adjuster 5) for adjusting the vertical position of the wheel. The position adjuster 5 is the length of the mounting holes 4 and 4 of the support legs 3 and 3 of the caster fork 2. A fitting portion 6 that has a shape corresponding to the hole shape and fits properly in the mounting hole 4, a flange portion 7 disposed on the outer periphery of the fitting portion 6, and one longitudinal end of the fitting portion 6 The part is provided with a bearing hole 8 with a collar 9 attached thereto.

上記キャスターフォーク２に車輪１０を取付けるには、該車輪１０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１０の軸孔１１から抜け出さないようにする。
そして該位置調整具５を該キャスターフォーク２の支脚３，３の取付け孔４，４にそれぞれ嵌着しておくが、この際、図３イに示すように該位置調整具５の軸受け孔８が下側に配置されるようにするか、あるいは該位置調整具５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３ロに示すように該位置調整具５の軸受け孔８が上側に配置されるようにする。
そして上記のようにしてベアリング１２を装着した車輪１０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５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５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 10 to the caster fork 2, a bearing 12 is inserted into the shaft hole 11 of the wheel 10, and the cap nuts 13 are screwed to both ends of the bearing 12. Try not to get out of it.
The position adjuster 5 is fitted into the mounting holes 4 and 4 of the support legs 3 and 3 of the caster fork 2, respectively. At this time, as shown in FIG. Is disposed on the lower side, or the position adjuster 5 is inverted and fitted into the mounting holes 4 and 4 of the support legs 3 and 3, respectively, and the position adjuster is shown in FIG. 5 bearing holes 8 are arranged on the upper side.
Then, the wheel 10 having the bearing 12 mounted thereon is inserted between the support legs 3 and 3 of the fork 2 as described above, and the bolt 14 serving as the axle is inserted into the bearing hole 8 of one of the position adjusting tools 5 and the bearing 12 of the wheel 10. The shaft nut 12 </ b> A and the bearing hole 8 of the other position adjusting tool 5 are inserted into the cap nut 15 and screwed onto the bolt 14.

このようにして該車輪１０は図４に示すようにキャスター１に取付けられるが、図３イに示すように該位置調整具５の軸受け孔８が下側に配置されている場合には、該車輪１０は該キャスター１において下部に位置し、したがって該キャスター１を車椅子に使用した場合には車椅子の高さが高くなるか、あるいは大きなサイズの車椅子に対応出来、図３ロに示すように該位置調整具５の軸受け孔８が上側に配置されている場合には、該車輪１０は該キャスター１において上部に位置し、したがって該キャスターを車椅子に使用した場合には車椅子の高さが低くなるか、あるいは小さいサイズの車椅子に対応出来る。   In this way, the wheel 10 is attached to the caster 1 as shown in FIG. 4, but when the bearing hole 8 of the position adjuster 5 is arranged on the lower side as shown in FIG. The wheel 10 is located in the lower part of the caster 1, so that when the caster 1 is used for a wheelchair, the height of the wheelchair is increased or the wheelchair can be adapted to a large wheelchair, and as shown in FIG. When the bearing hole 8 of the position adjusting tool 5 is arranged on the upper side, the wheel 10 is located at the upper part of the caster 1, and therefore the height of the wheelchair is lowered when the caster is used for a wheelchair. Or it can accommodate a small wheelchair.

図５および図６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の一対の支脚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。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。   5 and 6 show a second embodiment of the present invention (claim 2). In the present embodiment, attachment holes 41 and 41 having a long hole shape are provided in the distal direction of the pair of support legs 3 and 3 of the caster fork 2, and the size of the wheel is adjusted in the attachment holes 41 and 41. Adjustment tools 51 (size adjustment tools 51) are respectively fitted. The size adjuster 51 has a shape corresponding to the shape of the elongated holes of the mounting holes 41 and 41 of the support legs 3 and 3 of the caster fork 2, and a fitting portion 61 that fits in the mounting hole 41. It comprises a flange portion 71 disposed on the outer periphery of the portion 61, and two bearing holes 81A and 81B having different diameters are provided 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.

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７、イ、ロには本発明の第３実施例（請求項３）が示される。本実施例では第１実施例の位置調整具５に代えて、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２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５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７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７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７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７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。   FIGS. 7A and 7B show a third embodiment of the present invention (claim 3). In this embodiment, instead of the position adjuster 5 of the first embodiment, an adjuster 52 (position size adjuster 52) provided with bearing holes 82A and 82B of different diameters provided with collars 92A and 92B at both ends. Is used. The position size adjuster 52 may be set to have the same shape and structure as the size adjuster 51 used in the second embodiment. As shown in FIG. It consists of a flange portion 72 arranged at the periphery. In the case of a large-sized wheel 10A (shown by a solid line), a large-diameter bearing hole 82A is selected and attached. In that case, as shown in FIG. Is disposed on the lower side, or the position size adjuster 52 is inverted and fitted into the mounting holes 4 and 4 of the support legs 3 and 3, respectively, and the bearing holes are formed as shown in FIG. 82A is arranged on the upper side. Thus, in the state in which the wheel 10A is attached as shown in FIG. 7A, the wheel 10A is located at the lower part of the caster 1, and in the state of attachment of the wheel 10A shown in FIG.

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８２Ｂ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 82B is selected and mounted. In this case, contrary to the case of mounting a large-sized wheel 10A, as shown in FIG. When the wheel 10B is attached, the wheel 10B is located at the upper part of the caster 1, and when the wheel 10B is attached as shown in FIG. 7B, the wheel 10B is located at 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.

図１〜図４は本発明の第１実施例を説明する図である。
キャスター取付け構造の分解図 調整具の斜視図 イ 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 ロ 軸受け孔を上方に配置した車輪取付け状態のキャスターの側面図 車輪を取り付けたキャスターの斜視図 図５および図６は本発明の第２実施例を説明する図である。 調整具の斜視図 車輪取付け状態のキャスター側面図 図７は本発明の第３実施例を説明する図である。 イ 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 ロ 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 従来例のキャスター側面図 1 to 4 are diagrams for explaining a first embodiment of the present invention.
Caster mounting structure exploded view Adjustable tool perspective view B Side view of the caster with the wheel mounted in the lower position B Side view of the caster with the wheel mounted in the upper position FIG. 5 and FIG. 6 are views for explaining a second embodiment of the present invention. Adjustable tool perspective view FIG. 7 is a view for explaining a third embodiment of the present invention. B Side view of caster with wheel mounted with large-diameter bearing hole located below B Side view of caster with wheel mounted with small-diameter bearing hole located below Side view of conventional caster

符号の説明Explanation of symbols

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

Claims (4)

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一端部に設けられている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、該調整具の軸受け孔に該キャスターの車輪の軸を支持せしめた構成であって、
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す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 so that one end is higher and the other is lower.
An adjustment tool comprising a fitting portion that is a shape corresponding to the shape of the long hole of the mounting hole and that fits in the mounting hole, and a bearing hole provided at one end in the longitudinal direction of the fitting portion. Each of which is fitted to the mounting holes of the pair of support legs, and the shaft of the wheel of the caster is supported in the bearing hole of the adjuster,
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,
The caster wheel mounting structure is characterized in that the mounting position of the wheel can be adjusted up and down by being fitted into the mounting hole so that the bearing hole is disposed on the upper side by being reversed. 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２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 2. 該キャスターは車椅子のキャスターである請求項１〜請求項３のいづれか１項に記載のキャスターの車輪取付け構造。   The caster wheel mounting structure according to any one of claims 1 to 3, wherein the caster is a wheelchair caster.
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0569701A (en) * 1991-03-13 1993-03-23 Rollerblade Inc Locking device and locking method
JPH05262102A (en) * 1992-03-23 1993-10-12 Matsunaga Seisakusho:Kk Caster for light vehicle
JPH10318236A (en) * 1997-05-12 1998-12-02 Textron Inc Fastening device with emergency release by expandable nut body
JP2001224633A (en) * 2000-02-17 2001-08-21 Ox Engineering:Kk Axle shaft location-adjusting device for wheelchair

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0569701A (en) * 1991-03-13 1993-03-23 Rollerblade Inc Locking device and locking method
JPH05262102A (en) * 1992-03-23 1993-10-12 Matsunaga Seisakusho:Kk Caster for light vehicle
JPH10318236A (en) * 1997-05-12 1998-12-02 Textron Inc Fastening device with emergency release by expandable nut body
JP2001224633A (en) * 2000-02-17 2001-08-21 Ox Engineering:Kk Axle shaft location-adjusting device for wheelchair

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