JP5068470B2 - Furniture height adjustment device - Google Patents

Furniture height adjustment device Download PDF

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JP5068470B2
JP5068470B2 JP2006092987A JP2006092987A JP5068470B2 JP 5068470 B2 JP5068470 B2 JP 5068470B2 JP 2006092987 A JP2006092987 A JP 2006092987A JP 2006092987 A JP2006092987 A JP 2006092987A JP 5068470 B2 JP5068470 B2 JP 5068470B2
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caster shaft
leg
caster
furniture
wheel support
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JP2007261542A (en
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裕一郎 高木
弘志 早乙女
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Okamura Corp
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Okamura Corp
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Description

本発明は、下端にキャスタを設けて、移動自在とした家具の高さ調整装置に関する。   The present invention relates to a furniture height adjusting device which is provided with a caster at a lower end to be movable.

従来、下端にキャスタを設けた家具の高さ調整装置、例えばテーブルにおける天板の上下位置を、脚に設けたキャスタの取付部分において調整するようにした装置としては、脚の下端部に形成した雌ねじ部に、キャスタ軸の上端に形成した雄ねじ部を螺合し、キャスタ軸に、上下動可能、かつ回転不能として外嵌し、調整筒の回転操作により、キャスタ軸を回転させて、上下動させ、脚の高さ調整を行うように構成したものが知られている(例えば特許文献1参照)。
特開2004−75040号公報(図1)
Conventionally, a furniture height adjustment device having a caster at the lower end, for example, a device that adjusts the vertical position of the top plate on the table at the mounting portion of the caster provided on the leg, is formed at the lower end of the leg. The male threaded part formed on the upper end of the caster shaft is screwed onto the female threaded part, and the caster shaft is externally fitted so that it can be moved up and down and cannot be rotated. It is known that the leg height is adjusted (see, for example, Patent Document 1).
Japanese Patent Laying-Open No. 2004-75040 (FIG. 1)

しかし、上述の従来のものでは、調整筒の回転操作を行う際に、一旦、調整筒を握ってスプリングの付勢力に抗して引き下げ、係止状態にある調整筒の回転動作を解放した後、その解放状態を維持しながら、調整筒を回転させる必要があるため、操作性が悪く、調整作業が面倒であるばかりか、調整筒が、がた付き易い。
また、脚の雌ねじ部に対するキャスタ軸の螺合範囲を超えて、調整筒を回転させると、キャスタが落下してしまうため、このような落下を防止するための工夫を施さねばならず、構造が複雑になる。
However, in the above-described conventional one, when the adjustment cylinder is rotated, the adjustment cylinder is once gripped and pulled down against the urging force of the spring to release the rotation operation of the adjustment cylinder in the locked state. Since the adjustment cylinder needs to be rotated while maintaining the released state, the operability is not good and the adjustment work is troublesome, and the adjustment cylinder is easily rattled.
In addition, if the adjustment cylinder is rotated beyond the screwing range of the caster shaft to the female threaded portion of the leg, the caster falls, so a device for preventing such a fall must be taken, and the structure is It becomes complicated.

本発明は、従来の技術が有する上記のような問題点に鑑み、構造が簡単で、容易な操作で高さの調整を行うことができるようにした家具の高さ調整装置を提供することを目的としている。   In view of the above-described problems of the conventional technology, the present invention provides a furniture height adjusting device having a simple structure and capable of adjusting the height with an easy operation. It is aimed.

本発明によると、上記課題は、次のようにして解決される。
(1) 家具の脚の下端に下向きに突設したキャスタ軸の上部に、高さ調整用の調整筒を回転自在に嵌合し、この調整筒の内面に設けた雌ねじ部を、前記キャスタ軸の上部または家具の脚の下端部に設けた雄ねじ部に螺合し、前記調整筒の下端より下方に突出するキャスタ軸に、キャスタの車輪支持体を、キャスタ軸に嵌合した座金を介して前記車輪支持体の上端に前記調整筒の下端が当接するようにして、キャスタ軸廻りに回転自在、かつ上下動可能として装着する。
According to the present invention, the above problem is solved as follows.
(1) An adjustment cylinder for height adjustment is rotatably fitted to the upper part of a caster shaft projecting downward from the lower end of the leg of the furniture, and a female thread portion provided on the inner surface of the adjustment cylinder is attached to the caster shaft. The caster shaft is screwed into a male thread portion provided at the upper portion of the furniture or the lower end portion of the leg of the furniture, and the caster wheel support member is fitted to the caster shaft through a washer fitted to the caster shaft. The lower end of the adjustment cylinder is in contact with the upper end of the wheel support so as to be rotatable about the caster shaft and to be movable up and down.

(2) 上記(1)項において、キャスタ軸の上端部に小径雄ねじ部を形成し、この小径雄ねじ部を、脚の下端面に形成した雌ねじ部に螺合して、キャスタ軸を、脚に対して回転不能に取り付ける。 (2) In the above item (1), a small-diameter male screw portion is formed at the upper end portion of the caster shaft, and this small-diameter male screw portion is screwed into the female screw portion formed at the lower end surface of the leg so that the caster shaft is attached to the leg. Attach it so that it cannot rotate.

(3) 上記(2)項において、キャスタ軸の上部における小径雄ねじ部より下方の適所に、締付工具係合用の非円形断面部を設ける。 (3) In the above SL (2) sections in position below the small-diameter male screw portion at the top of the caster axis, providing the non-circular cross section of the tool-engaging fastening.

(4) 上記(1)〜(3)項のいずれかにおいて、脚の下端部に、キャスタ軸と同心の円形突部を形成し、この円形突部に、調整筒の内面における雌ねじ部より上方で、かつ大径の大径孔を、相対回転可能、かつ上下動可能として嵌合する。 (4) In any one of the above items (1) to (3) , a circular protrusion concentric with the caster shaft is formed at the lower end of the leg, and the circular protrusion is above the female thread on the inner surface of the adjustment cylinder. In addition, the large-diameter large-diameter hole is fitted so as to be relatively rotatable and vertically movable.

(5) 上記(1)〜(4)項において、車輪支持体を貫通するキャスタ軸における前記車輪支持体より下方に突出する下端部に、抜止め具を設ける。 (5) In the above items (1) to (4), a stopper is provided at a lower end portion of the caster shaft that passes through the wheel support and projects downward from the wheel support.

本発明によると、次のような効果を奏する。
請求項1記載の発明によると、調整筒を回転するだけで、その雌ねじ部と、キャスタ軸または脚の下端部に設けた雄ねじ部との螺合により、キャスタ軸と脚とが、車輪支持体および調整筒に対して上下動させられ、家具間高さが調整される。
したがって、調整筒を握って回転させるだけの簡単な操作で、家具の調整を行うことができ、しかも、構造も簡素化できる。
According to the present invention, the following effects can be obtained.
According to the first aspect of the present invention, only by rotating the adjusting cylinder, the caster shaft and the leg are connected to the wheel support by screwing the female thread portion with the male thread portion provided at the caster shaft or the lower end portion of the leg. The height between the furniture is adjusted by moving up and down with respect to the adjustment cylinder.
Therefore, the furniture can be adjusted with a simple operation by simply grasping and rotating the adjusting cylinder, and the structure can be simplified.

請求項2記載の発明によると、キャスタ軸の上端部に形成した小径雄ねじ部を、脚の下端面に形成した雌ねじ部に螺合して、キャスタ軸を、脚に対して回転不能に取り付けたので、脚に対するキャスタ軸の取付けを容易に行うことができる。   According to the invention described in claim 2, the small-diameter male screw portion formed at the upper end portion of the caster shaft is screwed into the female screw portion formed at the lower end surface of the leg, and the caster shaft is attached to the leg so as not to rotate. Therefore, the caster shaft can be easily attached to the leg.

請求項3記載の発明によると、キャスタ軸の上部における小径雄ねじ部より下方の適所に、締付工具係合用の非円形断面部を設けたので、この非円形断面部に、スパナ等の締付工具を係合させて、小径雄ねじ部を、脚の雌ねじ部に強力に締め込むことができる。   According to the third aspect of the present invention, the non-circular cross-sectional portion for engaging the tightening tool is provided at an appropriate position below the small-diameter male screw portion at the upper portion of the caster shaft. By engaging the tool, the small-diameter male screw portion can be strongly tightened into the female screw portion of the leg.

請求項4記載の発明によると、脚の下端部に、キャスタ軸と同心の円形突部を形成し、この円形突部に、調整筒の内面における雌ねじ部より上方で、かつ大径の大径孔を、相対回転可能、かつ上下動可能として嵌合してあるので、円形突部が、調整筒の回転時の案内面となって、調整筒の回転操作を円滑に行うことができるとともに、雄ねじ部やキャスタ軸の取付部分が露呈しないため、外観をよくすることができる。   According to the invention described in claim 4, a circular protrusion concentric with the caster shaft is formed at the lower end portion of the leg, and the circular protrusion is above the female thread portion on the inner surface of the adjustment cylinder and has a large diameter. Since the holes are fitted so as to be relatively rotatable and vertically movable, the circular protrusion serves as a guide surface at the time of rotation of the adjustment cylinder, and the adjustment cylinder can be smoothly rotated. Since the external thread part and the caster shaft mounting part are not exposed, the appearance can be improved.

請求項5記載の発明によると、車輪支持体を貫通するキャスタ軸における前記車輪支持体より下方に突出する下端部に、抜止め具を設けたので、家具を持ち上げたときにおけるキャスタの車輪支持体の落下を確実に防止することができる。   According to the invention described in claim 5, since the stopper is provided at the lower end portion of the caster shaft that passes through the wheel support and projects downward from the wheel support, the wheel support of the caster when the furniture is lifted. Can be reliably prevented.

以下、本発明の実施の形態を、添附図面を参照して説明する。
図1は、本発明の第1実施形態を備えるテーブルにおける使用状態の背面図、図2は、同じく使用状態の側面図、図3は、同じく脚の下端部を拡大して示す正面図、図4は、図3のIV−IV線における縦断側面図、図5は、同じく高さを高くしたときの、図4と同様の縦断側面図である。
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a rear view of a used state of a table provided with the first embodiment of the present invention, FIG. 2 is a side view of the same used state, and FIG. 4 is a longitudinal side view taken along the line IV-IV in FIG. 3, and FIG. 5 is a longitudinal side view similar to FIG. 4 when the height is similarly increased.

図1および図2は、本発明の高さ調整装置を備えるテーブルを示す。このテーブルは、前後方向に二又状に開脚する左右1対の脚(1)(1)の上部に、左右方向を向く水平軸(2)をもってブラケット(3)をそれぞれ枢着し、この左右1対のブラケット(3)をもって天板(4)の左右両側部を支持することにより、天板(4)が、ほぼ水平をなす使用位置と、図2に2点鎖線で示すように、上下方向を向く折畳み位置とに回動しうるようになっている。   1 and 2 show a table provided with the height adjusting device of the present invention. This table has a bracket (3) pivotally attached to the upper part of a pair of left and right legs (1) (1) that open in a forked direction in the front-rear direction, with a horizontal axis (2) facing the left-right direction. By supporting the left and right sides of the top plate (4) with a pair of left and right brackets (3), the top plate (4) is used almost horizontally, as shown by a two-dot chain line in FIG. It can be turned to a folding position facing in the vertical direction.

各脚(1)における前後に二又状に開脚した各下端部(1a)には、キャスタ(5)が設けられており、テーブルを移動可能にしている。   A caster (5) is provided at each lower end (1a) of the leg (1) which is opened in a forked manner in the front and rear directions, and the table is movable.

このキャスタ(5)は、図3および図4に示すように、脚(1)の下端部(1a)に下向きに突設したキャスタ軸(6)と、このキャスタ軸(6)の下部に、相対的に上下動可能、かつ回転自在として装着した車輪支持体(7)と、この車輪支持体(7)に、水平軸(8)をもって回転自在に装着した1対の車輪(9)(9)とにより構成されている。   As shown in FIGS. 3 and 4, the caster (5) includes a caster shaft (6) projecting downward from the lower end (1a) of the leg (1), and a lower portion of the caster shaft (6). A wheel support (7) that is relatively vertically movable and rotatably mounted, and a pair of wheels (9) (9) (9) (9) that are mounted on the wheel support (7) rotatably with a horizontal axis (8). ).

車輪支持体(7)の旋回中心部には、上下方向を向く貫通孔(10)が設けられており、この貫通孔(10)には、キャスタ軸(6)が貫通している。車輪支持体(7)の下端面(7a)より突出するキャスタ軸(6)の下端部(6a)には、環状溝(11)が形成されており、この環状溝(11)に、抜止め具としてのEリング(12)を装着することにより、車輪支持体(7)が、キャスタ軸(6)から抜け落ちないようにしている。車輪支持体(7)の下端面(7a)とEリング(12)との間は、所望の遊び間隔(W)を持たせることにより、車輪支持体(7)を、キャスタ軸(6)に対して水平方向に回転可能に、かつ上下動可能に装着している。   A through hole (10) facing in the vertical direction is provided in the turning center of the wheel support (7), and a caster shaft (6) passes through the through hole (10). An annular groove (11) is formed in the lower end (6a) of the caster shaft (6) protruding from the lower end surface (7a) of the wheel support (7). By mounting the E-ring (12) as a tool, the wheel support (7) is prevented from falling off the caster shaft (6). By providing a desired play interval (W) between the lower end surface (7a) of the wheel support (7) and the E-ring (12), the wheel support (7) is attached to the caster shaft (6). On the other hand, it is mounted so that it can rotate horizontally and move up and down.

キャスタ軸(6)の上端部には、小径雄ねじ部(13)が形成され、この小径雄ねじ部(13)を、脚(1)の下端部(1a)に形成した小径雌ねじ部(14)に、平座金(15)およびばね座金(16)を挾んで螺合することにより、キャスタ軸(6)の上端部が、脚(1)の下端部(1a)に強固に固着されている。   A small-diameter male screw portion (13) is formed at the upper end of the caster shaft (6), and this small-diameter male screw portion (13) is connected to a small-diameter female screw portion (14) formed at the lower end (1a) of the leg (1). The upper end of the caster shaft (6) is firmly fixed to the lower end (1a) of the leg (1) by pinching and screwing the plain washer (15) and the spring washer (16).

キャスタ軸(6)の上部である小径雄ねじ部(13)の直下には、小径雄ねじ部(13)よりも大径の大径雄ねじ部(17)が形成され、この大径雄ねじ部(17)を含むキャスタ軸(6)の上部軸廻りには、円筒状の調整筒(18)が回転自在に外嵌されている。この調整筒(18)の中間部の内面には、雌ねじ部(19)が形成され、この雌ねじ部(19)は、キャスタ軸(6)の大径雄ねじ部(17)に螺合されている。なお、この大径雄ねじ部(17)の直下部には、互いに平行な少なくとも1対の平削面を有する、例えば断面形を正方形または六角形等の非円形断面部(20)が形成され、この非円形断面部(20)に、スパナ等の締付工具を係合させて、キャスタ軸(6)の小径雄ねじ部(13)を、脚(1)の小径雌ねじ部(14)に強く締め込むことができる。   A large-diameter male screw portion (17) having a diameter larger than that of the small-diameter male screw portion (13) is formed immediately below the small-diameter male screw portion (13), which is an upper portion of the caster shaft (6). A cylindrical adjustment tube (18) is rotatably fitted around the upper shaft of the caster shaft (6) including the shaft. An internal thread portion (19) is formed on the inner surface of the intermediate portion of the adjustment cylinder (18), and the internal thread portion (19) is screwed into the large-diameter external thread portion (17) of the caster shaft (6). . A non-circular cross section (20) having at least one pair of planing surfaces parallel to each other, for example, a square or hexagonal cross section is formed immediately below the large diameter male thread (17). A non-circular cross section (20) is engaged with a tightening tool such as a wrench, and the small-diameter male screw portion (13) of the caster shaft (6) is firmly tightened into the small-diameter female screw portion (14) of the leg (1). be able to.

調整筒(18)の内面における雌ねじ部(19)より上方の部分には、雌ねじ部(19)より大径の大径孔(21)が形成され、この大径孔(21)は、脚(1)の下端部(1a)に形成したキャスタ軸(6)と同心の円形突部(22)に、相対回転可能、かつ上下動可能として外嵌されている。これにより、調整筒(18)の回転操作を円滑にしている。調整筒(18)の下端部には、平座金(23)が設けられ、この平座金(23)の下面と車輪支持体(7)の上面との間に、滑りの良好な滑り座金(24)が介在されており、車輪支持体(7)の旋回回動を円滑にしている。家具の最低高さ位置では、図3および図4に示すように、調整筒(18)の上端面(18a)と円形突部(22)の上端の拡径段部(22a)との間の間隔(a)が最小になるまで近接させている。   A large diameter hole (21) larger in diameter than the female screw portion (19) is formed on the inner surface of the adjustment cylinder (18) above the female screw portion (19). 1) is fitted on a circular protrusion (22) concentric with the caster shaft (6) formed at the lower end (1a) so as to be relatively rotatable and vertically movable. Thereby, the rotating operation of the adjusting cylinder (18) is made smooth. A flat washer (23) is provided at the lower end of the adjustment cylinder (18), and a sliding washer (24) having good slippage is provided between the lower surface of the flat washer (23) and the upper surface of the wheel support (7). ) Is interposed to smoothly turn the wheel support (7). At the lowest height position of the furniture, as shown in FIGS. 3 and 4, between the upper end surface (18a) of the adjustment cylinder (18) and the enlarged diameter step (22a) at the upper end of the circular protrusion (22). The distance (a) is kept close to the minimum.

次に、脚(1)の下端部(1a)へのキャスタ(5)の組付工程を説明する。まず、車輪支持体(7)の装着前に、キャスタ軸(6)の上端部における小径雄ねじ部(13)を、平座金(15)およびばね座金(16)を挟んで、脚(1)の下端部(1a)における小径雌ねじ部(14)に螺合し、ばね座金(16)の弾性復元力をもって、脚(1)にキャスタ軸(6)を回転不能に強固に固着する。このとき、キャスタ軸(6)のねじ込みによる回転操作は、キャスタ軸(6)の一部外周に形成した非円形断面部(20)に、スパナ等の締付工具を係合させることにより容易に行える。   Next, the assembly | attachment process of the caster (5) to the lower end part (1a) of a leg (1) is demonstrated. First, before mounting the wheel support (7), the small-diameter male screw portion (13) at the upper end of the caster shaft (6) is sandwiched between the plain washer (15) and the spring washer (16), and the leg (1) The caster shaft (6) is firmly fixed to the leg (1) in a non-rotatable manner with the elastic restoring force of the spring washer (16) by being screwed into the small diameter female thread portion (14) at the lower end (1a). At this time, the rotation operation by screwing the caster shaft (6) is facilitated by engaging a tightening tool such as a spanner with a non-circular cross section (20) formed on a part of the outer periphery of the caster shaft (6). Yes.

脚(1)の下端部(1a)にキャスタ軸(6)を取り付けた後、キャスタ軸(6)の大径雄ねじ部(17)に、調整筒(18)の雌ねじ部(19)を螺合し、調整筒(18)の上端部における大径孔(21)を、脚(1)の下端部(1a)側における円形突部(22)に嵌合させ、調整筒(18)の上端面(18a)と円形突部(22)の拡径段部(22a)との間の間隔(a)が最小になるまで近接させ、図3および図4に示す最低高さ位置とする。   After the caster shaft (6) is attached to the lower end (1a) of the leg (1), the female screw portion (19) of the adjustment cylinder (18) is screwed into the large-diameter male screw portion (17) of the caster shaft (6). Then, the large-diameter hole (21) at the upper end of the adjustment cylinder (18) is fitted into the circular protrusion (22) on the lower end (1a) side of the leg (1), and the upper end surface of the adjustment cylinder (18) The distance (a) between (18a) and the diameter-expanded step (22a) of the circular protrusion (22) is brought close to the minimum to obtain the minimum height position shown in FIGS.

キャスタ軸(6)への調整筒(18)の取付け後、平座金(23)および滑り座金(24)を挟んで、車輪支持体(7)の貫通孔(10)にキャスタ軸(6)の下部を挿入し、車輪支持体(7)の下端面より突出するキャスタ軸(6)の下端部(6a)における環状溝(11)に、Eリング(12)を取り付けて、車輪支持体(7)が、キャスタ軸(6)から抜け落ちないようにすることにより、脚(1)の下端部(1a)にキャスタ(5)を取り付ける。   After the adjustment cylinder (18) is attached to the caster shaft (6), the caster shaft (6) is inserted into the through hole (10) of the wheel support (7) with the plain washer (23) and the sliding washer (24) sandwiched between them. An E-ring (12) is attached to the annular groove (11) in the lower end portion (6a) of the caster shaft (6) which is inserted into the lower portion and protrudes from the lower end surface of the wheel support (7). The casters (5) are attached to the lower ends (1a) of the legs (1) by preventing the casters from falling off the caster shaft (6).

図5は、テーブルの高さ調整時における調整筒(18)の回転操作で、調整筒(18)の上端面(18a)と拡径段部(22a)との間の間隔(b)を、最低高さ位置における間隔(a)より大とした状態を示している。
なお、このテーブルの高さの最大調整範囲は、車輪支持体(7)の下端面(7a)とEリング(12)との間の遊び間隔(W)により制限するようにしてある。すなわち、この遊び間隔(W)を、キャスタ軸(6)の大径雄ねじ部(17)に対する調整筒(18)の雌ねじ部(19)の可動範囲より小とすることにより、テーブルの高さを最大としたとき、Eリング(12)が車輪支持体(7)の下端面(7a)に当接して、調整筒(18)の雌ねじ部(19)がキャスタ軸(6)の大径雄ねじ部(17)から外れないようにしてある。
FIG. 5 shows the interval (b) between the upper end surface (18a) of the adjustment cylinder (18) and the enlarged diameter step portion (22a) by rotating the adjustment cylinder (18) when adjusting the height of the table. A state where the distance is larger than the interval (a) at the minimum height position is shown.
The maximum height adjustment range of the table is limited by the play interval (W) between the lower end surface (7a) of the wheel support (7) and the E ring (12). That is, by making this play interval (W) smaller than the movable range of the female threaded portion (19) of the adjusting cylinder (18) relative to the large-diameter male threaded portion (17) of the caster shaft (6), the height of the table can be reduced. When the maximum is reached, the E-ring (12) contacts the lower end surface (7a) of the wheel support (7), and the internal thread portion (19) of the adjustment cylinder (18) is the large-diameter external thread portion of the caster shaft (6). (17) so as not to deviate.

図6は、本発明の第2実施形態を示す。この実施形態では、上記した第1実施形態において、キャスタ軸(6)の上部に形成した大径雄ねじ部(17)と、調整筒(18)の中間内周面に形成した雌ねじ部(19)とに代えて、脚(1)の下端部(1a)に形成した円形突部(22)の下部外周面に、大径雄ねじ部(25)を形成し、この大径雄ねじ部(25)に、調整筒(18)の上部内面に形成した雌ねじ部(26)を螺合させてある。その他の構成は、第1実施形態と同様であるため、詳細な説明は省略する。
このような構成としても、第1実施形態と同様の作用および効果を奏することができる。
FIG. 6 shows a second embodiment of the present invention. In this embodiment, in the first embodiment described above, the large-diameter male screw portion (17) formed on the upper part of the caster shaft (6) and the female screw portion (19) formed on the intermediate inner peripheral surface of the adjustment cylinder (18). Instead, a large-diameter male screw part (25) is formed on the lower outer peripheral surface of the circular protrusion (22) formed on the lower end (1a) of the leg (1), and the large-diameter male screw part (25) The internal thread portion (26) formed on the upper inner surface of the adjustment cylinder (18) is screwed. Since other configurations are the same as those of the first embodiment, detailed description thereof is omitted.
Even with such a configuration, the same operations and effects as the first embodiment can be achieved.

本発明の第1実施形態を備えるテーブルにおける使用状態の背面図である。It is a rear view of the use condition in a table provided with 1st Embodiment of this invention. 同じく使用状態の側面図である。It is a side view of a use condition similarly. 同じく脚の下端部を拡大して示す正面図である。It is a front view which expands and shows the lower end part of a leg similarly. 図3のIV−IV線における縦断側面図である。It is a vertical side view in the IV-IV line of FIG. 同じく高さを高くしたときの、図4と同様の縦断側面図である。FIG. 5 is a longitudinal side view similar to FIG. 4 when the height is similarly increased. 本発明の第2実施形態を示す縦断側面図である。It is a vertical side view which shows 2nd Embodiment of this invention.

(1) 脚
(1a) 下端部
(2) 水平軸
(3) ブラケット
(4) 天板
(5) キャスタ
(6) キャスタ軸
(6a) 下端部
(7) 車輪支持体
(7a) 下端面
(8) 水平軸
(9) 車輪
(10) 貫通孔
(11) 環状溝
(12) Eリング(抜止め具)
(13) 小径雄ねじ部
(14) 小径雌ねじ部
(15) 平座金
(16) ばね座金
(17) 大径雄ねじ部
(18) 調整筒
(18a) 上端面
(19) 雌ねじ部
(20) 非円形断面部
(21) 大径孔
(22) 円形突部
(22a) 拡径段部
(23) 平座金
(24) 滑り座金
(25) 大径雄ねじ部
(26) 大径雌ねじ部
(1) Leg
(1a) Lower end
(2) Horizontal axis
(3) Bracket
(4) Top plate
(5) Casters
(6) Caster shaft
(6a) Lower end
(7) Wheel support
(7a) Bottom edge
(8) Horizontal axis
(9) Wheel
(10) Through hole
(11) Annular groove
(12) E-ring
(13) Small diameter male thread
(14) Small diameter female thread
(15) Plain washer
(16) Spring washer
(17) Large diameter male thread
(18) Adjustment cylinder
(18a) Upper end surface
(19) Female thread
(20) Non-circular cross section
(21) Large diameter hole
(22) Circular protrusion
(22a) Expanded step
(23) Flat washer
(24) Sliding washer
(25) Large diameter male thread
(26) Large diameter female thread

Claims (5)

家具の脚の下端に下向きに突設したキャスタ軸の上部に、高さ調整用の調整筒を回転自在に嵌合し、この調整筒の内面に設けた雌ねじ部を、前記キャスタ軸の上部または家具の脚の下端部に設けた雄ねじ部に螺合し、前記調整筒の下端より下方に突出するキャスタ軸に、キャスタの車輪支持体を、キャスタ軸に嵌合した座金を介して前記車輪支持体の上端に前記調整筒の下端が当接するようにして、キャスタ軸廻りに回転自在、かつ上下動可能として装着したことを特徴とする家具の高さ調整装置。 An adjustment cylinder for height adjustment is rotatably fitted to the upper part of the caster shaft projecting downward at the lower end of the leg of the furniture, and the female thread portion provided on the inner surface of the adjustment cylinder is connected to the upper part of the caster shaft. The wheel support is supported by a caster shaft that is screwed into a male thread portion provided at the lower end portion of the leg of the furniture and protrudes downward from the lower end of the adjustment tube, and a caster wheel support body is fitted to the caster shaft via a washer. A furniture height adjusting device , wherein the lower end of the adjustment cylinder is in contact with the upper end of the body so as to be rotatable about the caster shaft and movable up and down. キャスタ軸の上端部に小径雄ねじ部を形成し、この小径雄ねじ部を、脚の下端面に形成した雌ねじ部に螺合して、キャスタ軸を、脚に対して回転不能に取り付けたことを特徴とする請求項1記載の家具の高さ調整装置。   A small-diameter male thread is formed on the upper end of the caster shaft, and this small-diameter male thread is screwed into the female thread formed on the lower end surface of the leg. The furniture height adjusting device according to claim 1. キャスタ軸の上部における小径雄ねじ部より下方の適所に、締付工具係合用の非円形断面部を設けたことを特徴とする請求項記載の家具の高さ調整装置。 3. The furniture height adjusting device according to claim 2 , wherein a non-circular cross-sectional portion for engaging a tightening tool is provided at an appropriate position below the small-diameter male screw portion at the upper portion of the caster shaft. 脚の下端部に、キャスタ軸と同心の円形突部を形成し、この円形突部に、調整筒の内面における雌ねじ部より上方で、かつ大径の大径孔を、相対回転可能、かつ上下動可能として嵌合したことを特徴とする請求項1〜3のいずれかに記載の家具の高さ調整装置。 A circular protrusion concentric with the caster shaft is formed at the lower end portion of the leg, and a large-diameter hole on the inner surface of the adjustment cylinder above the internal thread portion and a large-diameter hole is relatively rotatable and vertically movable. The furniture height adjustment device according to claim 1, wherein the furniture height adjustment device is fitted so as to be movable. 車輪支持体を貫通するキャスタ軸における前記車輪支持体より下方に突出する下端部に、抜止め具を設けたことを特徴とする請求項1〜4のいずれかに記載の家具の高さ調整装置。   The furniture height adjusting device according to any one of claims 1 to 4, wherein a retainer is provided at a lower end portion of the caster shaft that passes through the wheel support and projects downward from the wheel support. .
JP2006092987A 2006-03-30 2006-03-30 Furniture height adjustment device Active JP5068470B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021049909A (en) * 2019-09-26 2021-04-01 株式会社オカムラ Caster and furniture with the same

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* Cited by examiner, † Cited by third party
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JP4782176B2 (en) * 2008-08-06 2011-09-28 株式会社石黒製作所 Twin wheel caster and its mounting method
JP4960403B2 (en) * 2009-04-19 2012-06-27 株式会社石黒製作所 Caster with height adjustment function

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JPH02108603U (en) * 1989-02-16 1990-08-29
JPH0712081Y2 (en) * 1989-03-28 1995-03-22 株式会社ホウトク Table caster mounting structure
JPH09276069A (en) * 1996-04-17 1997-10-28 Nobuyuki Suzuki Chair with caster provided with spring
JP2839239B2 (en) * 1996-04-23 1998-12-16 コクヨ株式会社 Object support device
JP2001224456A (en) * 2000-02-15 2001-08-21 Aichi Kk Height control device
JP4031342B2 (en) * 2002-10-17 2008-01-09 株式会社岡村製作所 Table height adjuster

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021049909A (en) * 2019-09-26 2021-04-01 株式会社オカムラ Caster and furniture with the same
JP7335120B2 (en) 2019-09-26 2023-08-29 株式会社オカムラ Casters and caster fixtures

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