JP5356550B2 - Chair armrest equipment - Google Patents

Chair armrest equipment Download PDF

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JP5356550B2
JP5356550B2 JP2012014698A JP2012014698A JP5356550B2 JP 5356550 B2 JP5356550 B2 JP 5356550B2 JP 2012014698 A JP2012014698 A JP 2012014698A JP 2012014698 A JP2012014698 A JP 2012014698A JP 5356550 B2 JP5356550 B2 JP 5356550B2
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armrest
strut
operation lever
wire
chair
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JP2012075955A (en
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洋一郎 小田
義徳 磯貝
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Okamura Corp
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Okamura Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an armrest device for a chair which facilitates the assembling, checking, and replacement of a wire anytime, freely, in a short time. <P>SOLUTION: A recessed groove 22 directed vertically, and having a lower end communicating with a wire insertion hole 19 provided in a mounting portion 15 of an armrest post 14, is provided below an operation lever 25 on the front side of the armrest post 14. The recessed groove 22 and the wire insertion hole 19 house the wire cooperating with the operation lever 25, and a cover 36 for covering a front opening of the recessed groove 22, is freely removably provided on the front side of the armrest post 14. <P>COPYRIGHT: (C)2012,JPO&amp;INPIT

Description

本発明は、椅子の肘掛け装置に係り、特に、椅子の各部の位置もしくは付勢力等を調節する調節手段に連係されたワイヤを牽引する操作レバーを設けた椅子の肘掛け装置に関する。   The present invention relates to an armrest device for a chair, and more particularly, to an armrest device for a chair provided with an operation lever for pulling a wire linked to an adjusting means for adjusting the position or urging force of each part of the chair.

この種の椅子の肘掛け装置としては、例えば、特許文献１〜３に記載されているようなものがある。   Examples of this type of chair armrest device include those described in Patent Documents 1 to 3.

実開昭５９−１０６４８号公報Japanese Utility Model Publication No.59-10648 実開昭６２−４０９５１号公報Japanese Utility Model Publication No. 62-40951 特開２００４−１１３５０１号公報JP 2004-113501 A

しかし、これらの特許文献１〜３に記載されている椅子の肘掛け装置は、いずれも、操作レバーと各種の調節手段とを連係するワイヤが、肘掛け支柱内を挿通しているため、組み付け時に、ワイヤを肘掛け支柱内に挿通させた後でなければ、ワイヤの両端末を、操作レバーと各種の調節手段とに接続することができない。すなわち、ワイヤの両端末を、操作レバーと各種の調節手段とに接続した後に、ワイヤを、肘掛け支柱内に挿通させることができない。
そのため、組み付け作業が煩雑で、時間がかかるとともに、ワイヤの点検や交換作業も面倒である。 However, as for the armrest device of the chair described in these patent documents 1-3, since the wire which links an operation lever and various adjustment means has penetrated the inside of an armrest support | pillar, Only after the wire is inserted through the armrest struts, both ends of the wire cannot be connected to the operating lever and various adjusting means. That is, after connecting both ends of the wire to the operation lever and various adjusting means, the wire cannot be inserted into the armrest strut.
Therefore, the assembling work is complicated and takes time, and the wire inspection and replacement work is also troublesome.

本発明は、上述のような問題点を解決するためになされたもので、ワイヤの組み付け、点検、および交換作業を、いつでも自由に、短時間で、簡単に行えるようにした椅子の肘掛け装置を提供することを目的としている。   The present invention has been made to solve the above-described problems, and provides a chair armrest device that can easily perform wire assembly, inspection, and replacement work at any time in a short time. It is intended to provide.

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）座体の側方より起立する肘掛け支柱の上端に、前後方向を向く肘当てを設け、前記肘当てまたは肘掛け支柱における前記肘当ての上面よりも下方に、椅子の各部の位置もしくは付勢力等を調節する調節手段に連係されたワイヤを牽引する操作レバーを設けた椅子の肘掛け装置において、前記肘掛け支柱の前面における前記操作レバーよりも下方に、上下方向を向くとともに、下端部が椅子における前記肘掛け支柱の取付部に設けられたワイヤ挿通孔に連通する凹溝を設け、この凹溝および前記ワイヤ挿通孔に、前記操作レバーに連係したワイヤを収容し、かつ前記凹溝の前面開口部を覆うカバーを、前記肘掛け支柱の前面に着脱自在に設ける。 According to the present invention, the above problem is solved as follows.
(1) An armrest that faces in the front-rear direction is provided at the upper end of the armrest strut that stands up from the side of the seat body, and the position or attachment of each part of the chair is below the upper surface of the armrest or the armrest strut in the armrest strut. In an armrest device for a chair provided with an operation lever for pulling a wire linked to an adjusting means for adjusting a force or the like, the chair is directed downward in the front surface of the armrest support column in a vertical direction, and a lower end portion is a chair. A concave groove communicating with the wire insertion hole provided in the mounting portion of the armrest post is provided, and the concave groove and the wire insertion hole accommodate the wire linked to the operation lever, and the front opening of the concave groove The cover which covers a part is provided in the front surface of the said armrest support | pillar so that attachment or detachment is possible.

このような構成とすると、肘掛け支柱の前面に、上下方向を向く凹溝を設け、この凹溝に、操作レバーに連係したワイヤを収容し、かつこの凹溝の前面開口部を覆うカバーを、肘掛け支柱の前面に着脱自在に設けてあるので、カバーを外すことにより、ワイヤの中間部を、凹溝内に前方より簡単に出し入れすることができ、ワイヤの組み付け、点検、および交換作業を、いつでも自由に、短時間で、簡単に行うことができる。
また、操作レバーに連係されたワイヤを、凹溝と肘掛け支柱の取付部に設けられたワイヤ挿通孔内に収容した後、カバーを肘掛け支柱の前面に装着することにより、ワイヤが外部に露呈することがなく、美麗な外観を呈することができる。 With such a configuration, the front surface of the armrest support column is provided with a concave groove that faces in the vertical direction, and the cover that accommodates the wire linked to the operation lever and covers the front opening of the concave groove is provided in the concave groove. Since it is detachably provided on the front of the armrest strut, by removing the cover, the middle part of the wire can be easily put in and out from the front in the concave groove, and assembly, inspection, and replacement work of the wire can be performed. It can be done easily at any time in a short time.
Further, after the wire linked to the operation lever is accommodated in the wire insertion hole provided in the mounting portion of the recessed groove and the armrest strut, the wire is exposed to the outside by attaching the cover to the front surface of the armrest strut. And can have a beautiful appearance.

（２）上記(１)項において、肘掛け支柱を、側面視が前傾する菱形枠状とし、その上端に、肘当てを、その前端部が前記肘掛け支柱における前傾する前支柱部の上端よりも前方に突出するようにして設け、前記前支柱部の前上部に上向きに操作可能な操作レバーを設けるとともに、この操作レバーの直下において、前記前支柱部の前面に凹溝を設ける。 (2) In the above item (1), the armrest strut is in the shape of a rhombus that tilts forward when viewed from the side, and an elbow rest is placed on the upper end of the armrest strut from the upper end of the front strut that tilts forward in the armrest prop Is provided so as to protrude forward, and an operation lever that can be operated upward is provided at the front upper portion of the front strut portion, and a concave groove is provided in front of the front strut portion immediately below the operation lever.

このような構成とすると、肘当ての前端部に手をのせたままの状態で、前支柱部の前上部に設けた操作レバーを指で容易に上向き操作することができる。
また、操作レバーに連係されたワイヤを、操作レバーの直下において前支柱部の前面に設けた凹溝内に収容し易くなる。 With such a configuration, the operation lever provided on the front upper portion of the front support portion can be easily operated upward with a finger while the hand is placed on the front end portion of the elbow rest.
In addition, the wire linked to the operation lever can be easily accommodated in the concave groove provided on the front surface of the front strut portion immediately below the operation lever.

（３）上記(２)項において、肘当ての前部と前支柱部の上端との間に、間隙を形成するための凹入段部を設ける。 (3) In the above item (2), a recessed step portion for forming a gap is provided between the front portion of the elbow rest and the upper end of the front strut portion.

このような構成とすると、肘当ての前部と、前支柱部の前上部に設けた操作レバーとが離間するので、肘当ての前端部に手をのせたままの状態で、操作レバーを、より容易に上向き操作することができる。   With such a configuration, since the front part of the elbow pad and the operation lever provided at the front upper part of the front support part are separated from each other, with the hand on the front end part of the elbow pad, It can be operated more easily upward.

（４）上記(３)項において、操作レバーを、凹溝と連通するようにして凹入段部に設けた後方に凹入する凹入部に収容する。 (4) In the above item (3), the operation lever is accommodated in a recessed portion that is recessed backward provided in the recessed step portion so as to communicate with the recessed groove.

このような構成とすると、操作レバーを、凹入段部に設けられた後方に凹入する凹入部に、前支柱部の前方より容易に収容しうるとともに、操作レバーに連係したワイヤを凹溝に容易に案内することが可能となる。   With such a configuration, the operation lever can be easily received from the front of the front strut portion in the recess portion recessed in the rear provided in the recess step portion, and the wire linked to the operation lever is recessed in the groove. It is possible to guide easily.

本発明によれば、カバーを外すことにより、ワイヤの中間部を、凹溝内に前方より簡単に出し入れすることができ、ワイヤの組み付け、点検、および交換作業を、いつでも自由に、短時間で、簡単に行うことができる。
また、操作レバーに連係されたワイヤを、凹溝と肘掛け支柱の取付部に設けられたワイヤ挿通孔内に収容した後、カバーを肘掛け支柱の前面に装着することにより、ワイヤが外部に露呈することがなく、美麗な外観を呈することができる。 According to the present invention, by removing the cover, the intermediate portion of the wire can be easily put in and out of the groove from the front, and the assembly, inspection, and replacement of the wire can be freely performed at any time in a short time. Can be done easily.
Further, after the wire linked to the operation lever is accommodated in the wire insertion hole provided in the mounting portion of the recessed groove and the armrest strut, the wire is exposed to the outside by attaching the cover to the front surface of the armrest strut. And can have a beautiful appearance.

本発明の肘掛け装置の一実施形態を備える椅子の側面図である。It is a side view of a chair provided with one embodiment of the armrest device of the present invention. 同じく、肘掛け装置の部分を斜め前方より見た斜視図である。Similarly, it is the perspective view which looked at the part of the armrest apparatus from diagonally forward. 同じく、分解斜視面図である。Similarly, it is an exploded perspective view. 同じく、背凭れ支持杆の前端部とカバーの下端とを、斜め後方より見た分解斜視面図である。Similarly, it is the disassembled perspective view which looked at the front-end part of the backrest support collar and the lower end of a cover from diagonally back. 同じく、操作レバー用のハウジングへのカバーの上部の取付状態を、斜め後方より見た斜視面図である。Similarly, it is the perspective view which looked at the attachment state of the upper part of the cover to the housing for operation levers from diagonally back. 肘掛け支柱の前上部を中央で縦断した拡大縦断側面図である。It is the expansion vertical side view which longitudinally cut the front upper part of the armrest support | pillar in the center.

以下、本発明の一実施形態を、図面に基づいて説明する。
図１は、本発明の一実施形態を備える椅子の側面図である。
図１に示すように、この椅子１は、先端部にキャスタ２が設けられた放射状の複数本の脚杆３を有する脚体４を備えている。脚体４の中央には、伸縮式の脚柱５が立設され、脚柱５の上端には、支基６が設けられている。 Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a side view of a chair provided with an embodiment of the present invention.
As shown in FIG. 1, the chair 1 includes a leg body 4 having a plurality of radial leg rods 3 each having a caster 2 provided at a distal end portion. In the center of the leg 4, a telescopic leg 5 is erected, and a support base 6 is provided at the upper end of the leg 5.

支基６には、背凭れ７を支持する左右１対の背凭れ支持杆８の前下端部が、左右方向を向く軸９をもって枢支され、支基６内に設けられたリクライニング機構(図示略)により、背凭れ７および背凭れ支持杆８は、後傾しうるようになっている。   A reclining mechanism (shown in the figure) provided in the support base 6 is pivotally supported on the support base 6 by a shaft 9 directed in the left-right direction at the front and lower ends of a pair of left and right back support supports 8 that support the back support 7. Thus, the backrest 7 and the backrest support rod 8 can tilt backward.

支基６の上方に配設された座体１０の前部は、左右１対の支持リンク１１をもって、支基６の前部に支持され、また座体１０の後部は、左右の背凭れ支持杆８の前向腕部８a(その一方のみを図示する)における前端寄りの部分に上向き突設された軸受片１２に、左右方向を向く軸１３をもって枢着され、座体１０は、背凭れ７および背凭れ支持杆８が後傾する際に、連動して、後下方に移動させられるようになっている。   The front part of the seat body 10 disposed above the support base 6 is supported by the front part of the support base 6 with a pair of left and right support links 11, and the rear part of the seat body 10 is supported on the left and right backrests. A seat 13 is pivotally attached to a bearing piece 12 projecting upward at a portion near the front end of a forward arm portion 8a (only one of which is shown) of the heel 8 with a shaft 13 facing in the left-right direction. When the backrest 7 and the backrest support rod 8 are tilted rearward, they are moved together in a rearward and downward direction.

図２および図３に示すように、左右の背凭れ支持杆８の前向腕部８aにおける軸受片１２の後方には、肘掛け支柱１４を取り付けるための直方体状の取付部１５が、軸受片１２と連続するようにして、一体的に形成されている。   As shown in FIGS. 2 and 3, a rectangular parallelepiped mounting portion 15 for mounting an armrest column 14 is provided at the rear of the bearing piece 12 in the forward arm portion 8 a of the left and right backrest support rods 8. And are integrally formed.

取付部１５の外側面である、肘掛け支柱１４を取り付けるための取付面１６には、側面視上向砲弾形の前後１対の突部１７、１７が設けられており、各突部１７の上部には、左右方向を向くねじ孔１８がそれぞれ設けられている。
取付部１５における前方の突部１７より前方の部分には、左右方向に貫通するワイヤ挿通孔１９が設けられている。 A mounting surface 16 for mounting the armrest column 14, which is an outer surface of the mounting portion 15, is provided with a pair of front and rear projecting portions 17, 17 that are upwardly projecting in a side view, and an upper portion of each projecting portion 17. Are provided with screw holes 18 facing in the left-right direction.
A wire insertion hole 19 penetrating in the left-right direction is provided in a portion of the attachment portion 15 in front of the front protrusion 17.

肘掛け支柱１４は、取付部１５より座体の側方において起立するもので、この例では、側面視が前傾する菱形枠状をなし、その上端には、前後方向を向く肘当て２０が設けられている。
肘掛け支柱１４の下端部は、椅子１の内方に向かってほぼ９０°屈曲し、その内端面に設けた、上記突部１７、１７と補形をなす前後２個の凹部(図示略)を、上記突部１７、１７に嵌合し、かつ肘掛け支柱１４の下端部を左右方向に貫通する前後２個のボルト２１、２１を、ねじ孔１８、１８に螺合して締め付けることにより、取付部１５の外側面に強固に取り付けられている。 The armrest column 14 stands on the side of the seat body from the mounting portion 15. In this example, the armrest column 14 has a rhombus frame shape in which the side view is inclined forward, and an elbow rest 20 facing the front-rear direction is provided at the upper end. It has been.
The lower end portion of the armrest support 14 is bent by approximately 90 ° toward the inside of the chair 1, and has two front and rear recesses (not shown) that are complementary to the projections 17 and 17 provided on the inner end surface. The two bolts 21 and 21 that are fitted to the protrusions 17 and 17 and penetrate the lower end of the armrest column 14 in the left-right direction are screwed into the screw holes 18 and 18 and tightened. It is firmly attached to the outer surface of the portion 15.

肘掛け支柱１４を取付部１５の外側面に取り付けたとき、ワイヤ挿通孔１９は、肘掛け支柱１４の前面に設けたほぼ上下方向を向く凹溝２２の下端部における肘掛け支柱１４の前面に沿って内方に屈曲した部分の内向きの開口端と連通するようになっている。   When the armrest strut 14 is attached to the outer surface of the attachment portion 15, the wire insertion hole 19 is formed along the front surface of the armrest strut 14 at the lower end portion of the concave groove 22 provided in the front surface of the armrest strut 14 and facing the substantially vertical direction. It communicates with the inwardly open end of the bent portion.

図６に示すように、肘掛け支柱１４における前傾する前支柱部１４aの上端には、肘当て２０の前部との間に間隙(Ｓ)を形成するための凹入段部２３が設けられている。   As shown in FIG. 6, a recessed step 23 for forming a gap (S) with the front part of the armrest 20 is provided at the upper end of the forward support part 14 a inclined forward in the armrest support 14. ing.

肘掛け支柱１４における凹入段部２３から前支柱部１４aの前面にかけての角部における左右方向の中間部には、上記凹溝２２の上端に連通するとともに、後方に凹入する凹入部２４が設けられ、ここに、操作レバー２５を収容するハウジング２６が前方より嵌合され、上下２個の取付ねじ２７、２７をもって固着されている。   An intermediate portion in the left-right direction at the corner from the recessed step portion 23 of the armrest strut 14 to the front surface of the front strut portion 14a is provided with a recessed portion 24 that communicates with the upper end of the recessed groove 22 and is recessed backward. Here, a housing 26 that accommodates the operation lever 25 is fitted from the front, and is fixed with two upper and lower mounting screws 27, 27.

操作レバー２５は、その先端部の操作部２５aが、ハウジング２６および前支柱部１４aの前面より前方に突出するようにして、その基端部が、左右方向を向く軸２８をもって枢着され、中間部の一側面に、側面視円弧状をなすワイヤ掛け部２９が設けられている。   The operation lever 25 is pivotally attached with a shaft 28 facing in the left-right direction so that the operation portion 25a at the distal end protrudes forward from the front surfaces of the housing 26 and the front strut portion 14a. A wire hooking portion 29 having a circular arc shape in side view is provided on one side surface of the portion.

ワイヤ３０は、その一方の端末に止着された横向きピン状のワイヤエンド部材３１が、ハウジング２６の中間部に係止され、かつそこから、操作レバー２５のワイヤ掛け部２９に掛け回された後、下方に向かい、ハウジング２６の下端部に一方の端末が止着された可撓性のアウターチューブ３２内に挿入されている。   The wire 30 has a lateral pin-shaped wire end member 31 fixed to one end of the wire 30, which is locked to an intermediate portion of the housing 26, and is then wound around a wire hooking portion 29 of the operation lever 25. Then, it goes downward and is inserted into a flexible outer tube 32 in which one end is fixed to the lower end of the housing 26.

ワイヤ３０とアウターチューブ３２とにより、ボーデンケーブル３３が形成されている。このボーデンケーブル３３は、ハウジング２６の下端より、肘掛け支柱１４の前面に設けた上記凹溝２２と、取付部１５におけるワイヤ挿通孔１９とを順次通って、背凭れ支持杆８の内方に引き出され、座体１０の下方に設けられた、図示を省略した各種の調節手段に接続されている。   A Bowden cable 33 is formed by the wire 30 and the outer tube 32. The Bowden cable 33 is drawn out from the lower end of the housing 26 through the concave groove 22 provided in the front surface of the armrest column 14 and the wire insertion hole 19 in the attachment portion 15 to the inside of the backrest support rod 8. It is connected to various adjusting means (not shown) provided below the seat body 10.

調節手段としては、例えば、ワイヤ３０を牽引することにより、背凭れ７の回動を可能とし、ワイヤ３０が緩められることにより、背凭れ７の回動が停止させられるようにした背凭れ７の角度調節装置や、ワイヤ３０を牽引することにより、椅子１の伸縮式脚柱５内に設けたロック付きガススプリング(図示略)のロック解除ボタンを作動位置まで押動して、座体１０の高さ調節を可能とし、ワイヤ３０が緩められることにより、ロック解除ボタンが不作動位置に復帰して、座体１０の高さを固定するようにした座の高さ調節装置等のように、椅子１の各部の位置もしくは付勢力等を調節する公知の調節手段とすることができる。   As the adjusting means, for example, by pulling the wire 30, the backrest 7 can be rotated, and when the wire 30 is loosened, the rotation of the backrest 7 is stopped. By pulling the angle adjusting device or the wire 30, the lock release button of the gas spring with lock (not shown) provided in the telescopic leg 5 of the chair 1 is pushed to the operating position, and the seat 10 The height can be adjusted, and the wire 30 is loosened, so that the lock release button returns to the inoperative position and the height of the seat 10 is fixed. It can be a known adjusting means for adjusting the position or urging force of each part of the chair 1.

操作レバー２５は、その側面に突設したピン３４が、ハウジング２６の側壁２６aに設けた、軸２８を曲率中心とする円弧孔３５内を遊動しうる範囲内において、軸２８を中心として、上下方向に回動することができ、常時は、図６に示す停止位置に位置し、操作部２５aを、図６に矢印で示すように、上方に回動させることにより、ワイヤ掛け部２９でワイヤ３０を上方に牽引し、調節手段を作動させることができる。   The operation lever 25 has a pin 34 projecting from the side surface of the operation lever 25 within a range in which the pin 34 is provided on the side wall 26a of the housing 26 and can freely move in the arc hole 35 having the curvature centered on the shaft 28. 6 is normally located at the stop position shown in FIG. 6, and the operation portion 25a is turned upward as shown by an arrow in FIG. 30 can be pulled upward to activate the adjustment means.

操作レバー２５から手を離すと、ワイヤ３０は、調節手段に内蔵されるか、または別途設けた復帰用のばね(図示略)により引き戻され、操作レバー２５)は、図６に示す停止位置へ戻される。   When the hand is released from the operation lever 25, the wire 30 is built in the adjusting means or pulled back by a return spring (not shown) provided separately, and the operation lever 25) is moved to the stop position shown in FIG. Returned.

図２〜図５に示すように、肘掛け支柱１４の前面には、その前面形状と同形をなすように、下端部が内方に屈曲する正面視ほぼＪ字状のカバー３６が、ワイヤ３０が収容された凹溝２２の前面開口部を覆うように、着脱自在に装着されている。   As shown in FIGS. 2 to 5, on the front surface of the armrest strut 14, there is a substantially J-shaped cover 36 with a lower end bent inward so that the wire 30 has the same shape as the front surface. It is detachably mounted so as to cover the front opening of the recessed groove 22 accommodated.

カバー３６は、正面視ほぼＪ字状の前面板３７と、その上端部後面に後方に向けて突設され、かつ後端部に外向きの係合爪３８を有する左右1対の弾性係合片３９、３９と、前面板３７の中間部後面に突設され、かつ断面形が十文字の棒状をなす上下１対の突起４０、４０と、前面板３７の下端部における内方に屈曲した部分の内側縁に連設され、肘掛け支柱１４へのカバー３６の装着時に、肘掛け支柱１４の凹溝２２内に嵌合するとともに、取付面１６に当接するようにした後方を向く突片４１と、この突片４１の後端部に連設され、かつ肘掛け支柱１４へのカバー３６の装着時に、取付部１５のワイヤ挿通孔１９に嵌合され、その開口部の前縁に係止されるようにした内方を向く係止片４２とを備えている。   The cover 36 has a substantially J-shaped front plate 37 in front view, and a pair of left and right elastic engagements projecting rearwardly on the rear surface of the upper end portion and having outward engagement claws 38 on the rear end portion. A pair of upper and lower projections 40, 40 projecting on the rear face of the middle portion of the front plate 37 and the cross-sectional shape of the pieces 39, 39, and a portion bent inward at the lower end of the front plate 37 A projecting piece 41 facing rearward that fits into the groove 22 of the armrest strut 14 and contacts the mounting surface 16 when the cover 36 is attached to the armrest strut 14. When the cover 36 is attached to the armrest strut 14 in a continuous manner with the rear end portion of the projecting piece 41, it is fitted into the wire insertion hole 19 of the mounting portion 15 and locked to the front edge of the opening portion. And a locking piece 42 facing inward.

このカバー３６は、次のようにして、肘掛け支柱１４の前面に装着される。
すなわち、図３および図４に示すように、まず、カバー３６の下端内側における突片４１を、取付面１６に近接する肘掛け支柱１４の凹溝２２内に前方より嵌合した後、カバー３６全体を内方に移動して、係止片４２を取付部１５におけるワイヤ挿通孔１９に嵌合するとともに、突片４１を取付面１６に当接させる。
これにより、カバー３６の下端内側が、取付面１６と肘掛け支柱１４の基端部前面とに係止される。 The cover 36 is attached to the front surface of the armrest column 14 as follows.
That is, as shown in FIGS. 3 and 4, first, the projecting piece 41 on the inner side of the lower end of the cover 36 is fitted from the front into the concave groove 22 of the armrest strut 14 adjacent to the mounting surface 16, and then the entire cover 36. The locking piece 42 is fitted into the wire insertion hole 19 in the mounting portion 15, and the protruding piece 41 is brought into contact with the mounting surface 16.
Thereby, the lower end inner side of the cover 36 is locked to the attachment surface 16 and the front surface of the base end portion of the armrest column 14.

次いで、図３および図５に示すように、カバー３６における左右１対の弾性係合片３９、３９を、ハウジング２６の前面より後方に向けて設けた左右１対の係合孔４３、４３に嵌合し、各係合爪３８を、係合孔４３の後端における外側の縁に係止させるとともに、前面板３７の中間部後面に突設した上下１対の突起４０、４０を、肘掛け支柱１４の前面における凹溝２２内に設けたボス孔４４、４４に圧嵌する。   Next, as shown in FIGS. 3 and 5, the pair of left and right elastic engagement pieces 39, 39 in the cover 36 is inserted into the pair of left and right engagement holes 43, 43 provided rearward from the front surface of the housing 26. The engaging claws 38 are engaged with the outer edges at the rear ends of the engaging holes 43 and a pair of upper and lower protrusions 40, 40 projecting from the rear surface of the middle portion of the front plate 37 are armrested. It press-fits in the boss holes 44 and 44 provided in the concave groove 22 on the front surface of the support column 14.

係合爪３８が、係合孔４３の後端における外側の縁に係止されることにより、各弾性係合片３９は、係合孔４３、４３より抜け止めされ、カバー３６の上端部の前方への移動が阻止され、また、各弾性係合片３９が係合孔４３に嵌合されるとともに、各突起４０がボス孔４４に圧嵌さけることにより、カバー３６の上部と中間部との上下方向、左右方向および後方への移動が阻止され、カバー３６は、肘掛け支柱１４の前面に確実に装着される。   When the engaging claw 38 is locked to the outer edge at the rear end of the engaging hole 43, each elastic engaging piece 39 is prevented from coming off from the engaging holes 43, 43, and The forward movement is prevented, and each elastic engagement piece 39 is fitted into the engagement hole 43, and each projection 40 is press-fitted into the boss hole 44. The cover 36 is securely attached to the front surface of the armrest column 14.

係合爪３８を、平面視において円弧状または山形としておくことにより、各弾性係合片３９を、係合孔４３から抜き出すことができ、それによって、カバー３６を、上記と逆の手順で、肘掛け支柱１４の前面から簡単に外すことができる。   By setting the engaging claws 38 to have an arc shape or a mountain shape in a plan view, each elastic engaging piece 39 can be extracted from the engaging hole 43, whereby the cover 36 is removed in the reverse procedure to the above. It can be easily removed from the front surface of the armrest support 14.

この実施形態は、上記のような構成としてあるので、カバー３６を外すことにより、ワイヤ３０の中間部を、凹溝２２内に前方より簡単に出し入れすることができ、ワイヤ３０の組み付け、点検、および交換作業を、いつでも自由に、短時間で、簡単に行うことができる。
また、ワイヤ３０の中間部を、凹溝２２内に収容した後、カバー３６を肘掛け支柱１４の前面に装着することにより、凹溝２２内に収容したワイヤ３０が外部に露呈することがなく、美麗な外観を呈することができる。 Since this embodiment is configured as described above, by removing the cover 36, the intermediate portion of the wire 30 can be easily put in and out of the concave groove 22 from the front. In addition, the replacement work can be easily performed at any time in a short time.
In addition, after the intermediate portion of the wire 30 is accommodated in the concave groove 22, the cover 36 is attached to the front surface of the armrest column 14, so that the wire 30 accommodated in the concave groove 22 is not exposed to the outside. It can have a beautiful appearance.

凹溝２２の下端部を、椅子１における肘掛け支柱１４の取付部１５に設けたワイヤ挿通孔１９に連通させ、凹溝２２内に収容したワイヤ３０を、ワイヤ挿通孔１９に挿通させ、かつカバー３６の下端部に設けた係止片４２を、ワイヤ挿通孔１９の開口部に係止させてあるので、カバー３６の下端部を係止するための係合孔等を、肘掛け支柱１４や、その取付部１５等に特別に設ける必要がなく、構造を簡素化することができる。
また、ワイヤ挿通孔１９の開口部に係止させた係止片４２は、ワイヤ３０がワイヤ挿通孔１９の開口縁部に擦れて、傷つくのを防止するための保護材としても使用することができる。 The lower end portion of the concave groove 22 is communicated with the wire insertion hole 19 provided in the mounting portion 15 of the armrest column 14 in the chair 1, the wire 30 accommodated in the concave groove 22 is inserted into the wire insertion hole 19, and the cover Since the locking piece 42 provided at the lower end of 36 is locked to the opening of the wire insertion hole 19, the engagement hole for locking the lower end of the cover 36, the armrest strut 14, There is no need to provide the mounting portion 15 or the like specially, and the structure can be simplified.
The locking piece 42 locked to the opening of the wire insertion hole 19 can also be used as a protective material for preventing the wire 30 from rubbing against the opening edge of the wire insertion hole 19 and being damaged. it can.

カバー３６の下端部における、取付部１５に当接する縁部に、肘掛け支柱１４の凹溝２２内に嵌合する後方を向く突片４１を設け、この突片４１の先端部側面に設けた係止片４２を、突片４１が取付部１５に当接するようにして、ワイヤ挿通孔１９の開口部に嵌合して係止させてあるので、肘掛け支柱１４と、その取付部１５と、カバー３６との接合部分の体裁をよくすることができる。   At the lower edge of the cover 36, an edge that contacts the mounting portion 15 is provided with a protruding piece 41 facing backwards that fits into the recessed groove 22 of the armrest column 14, and the engagement provided on the side of the tip of the protruding piece 41 is provided. Since the stop piece 42 is fitted and locked to the opening of the wire insertion hole 19 so that the protruding piece 41 abuts on the attachment portion 15, the armrest strut 14, the attachment portion 15, and the cover The appearance of the joint with 36 can be improved.

カバー３６の上端部後面に、先端部に係合爪３８を有する弾性係合片３９を設け、この弾性係合片３９を、肘掛け支柱１４の前面、またはそこに取り付けた、操作レバー２５を収容するハウジング２６の前面に設けた係合孔４３に嵌合し、係合爪３８を、係合孔４３の後端縁部に係止させてあるので、カバー３６の上端部を、肘掛け支柱１４の前面に、簡単かつ確実に、装着することができ、取り外しも容易である。   An elastic engagement piece 39 having an engagement claw 38 at the tip is provided on the rear surface of the upper end of the cover 36, and the operation lever 25 having the elastic engagement piece 39 attached to the front surface of the armrest column 14 or the operation lever 25 is accommodated. Since the engagement claw 38 is engaged with the engagement hole 43 provided on the front surface of the housing 26 to be engaged with the rear end edge of the engagement hole 43, the upper end of the cover 36 is attached to the armrest column 14. It can be easily and securely attached to the front surface of the, and can be easily removed.

また、カバー３６の中間部後面に突設した突起４０を、肘掛け支柱１４の前面に設けたボス孔４４に圧嵌してあるので、カバー３６の装着時に、突起４０をボス孔４４に向かって、後方に押し込むだけで、簡単にカバー３６の中間部が位置決めされて、体裁よく保持される。   Further, since the protrusion 40 protruding from the rear surface of the intermediate portion of the cover 36 is press-fitted into the boss hole 44 provided in the front surface of the armrest column 14, the protrusion 40 is directed toward the boss hole 44 when the cover 36 is mounted. The intermediate portion of the cover 36 can be easily positioned and held in good appearance simply by pushing it backward.

なお、上記の実施形態においては、取付部１５は、背凭れ支持杆８に設けてあるが、これを支基６の側面や座体１０の下部側面に形成し、肘掛け支柱１４を支基６の側面や座体１０の下部側面に取り付けることもある。
また、弾性係合片３９を嵌合する係合孔４３は、ハウジング２６ではなく、肘掛け支柱１４に直接設けてもよい。
さらに、操作レバー２５は、肘当て２０の前部下面に設けることもある。 In the above embodiment, the attachment portion 15 is provided on the backrest support rod 8, but this is formed on the side surface of the support base 6 or the lower side surface of the seat body 10, and the armrest strut 14 is formed on the support base 6. It may be attached to the side surface of the seat or the lower side surface of the seat body 10.
Further, the engagement hole 43 into which the elastic engagement piece 39 is fitted may be provided directly in the armrest column 14 instead of the housing 26.
Further, the operation lever 25 may be provided on the lower surface of the front portion of the elbow pad 20.

１ 椅子
２ キャスタ
３ 脚杆
４ 脚体
５ 脚柱
６ 支基
７ 背凭れ
８ 背凭れ支持杆
８a 前向腕部
９ 軸
１０ 座体
１１ 支持リンク
１２ 軸受片
１３ 軸
１４ 肘掛け支柱
１４a 前支柱部
１５ 取付部
１６ 取付面
１７ 突部
１８ ねじ孔
１９ ワイヤ挿通孔
２０ 肘当て
２１ ボルト
２２ 凹溝
２３ 凹入段部
２４ 凹入部
２５ 操作レバー
２５a 操作部
２６ ハウジング
２６a 側壁
２７ 取付ねじ
２８ 軸
２９ ワイヤ掛け部
３０ ワイヤ
３１ ワイヤエンド部材
３２ アウターチューブ
３３ ボーデンケーブル
３４ ピン
３５ 円弧孔
３６ カバー
３７ 前面板
３８ 係合爪
３９ 弾性係合片
４０ 突起
４１ 突片
４２ 係止片
４３ 係合孔
４４ ボス孔
Ｓ 間隙
DESCRIPTION OF SYMBOLS 1 Chair 2 Caster 3 Leg rod 4 Leg 5 Leg column 6 Support base 7 Backrest 8 Backrest support rod 8a Front arm 9 Axis 10 Seat 11 Support link 12 Bearing piece 13 Axis 14 Armrest strut 14a Front strut 15 Mounting portion 16 Mounting surface 17 Projection portion 18 Screw hole 19 Wire insertion hole 20 Elbow pad 21 Bolt 22 Groove 23 Recessed step portion 24 Recessed portion 25 Operation lever 25a Operation portion 26 Housing 26a Side wall 27 Mounting screw 28 Shaft 29 Wire hooking portion 30 Wire 31 Wire end member 32 Outer tube 33 Bowden cable 34 Pin 35 Arc hole 36 Cover 37 Front plate 38 Engaging claw 39 Elastic engagement piece 40 Projection 41 Projection piece 42 Locking piece 43 Engagement hole 44 Boss hole S Gap

Claims (4)

座体の側方より起立する肘掛け支柱の上端に、前後方向を向く肘当てを設け、前記肘当てまたは肘掛け支柱における前記肘当ての上面よりも下方に、椅子の各部の位置もしくは付勢力等を調節する調節手段に連係されたワイヤを牽引する操作レバーを設けた椅子の肘掛け装置において、
前記肘掛け支柱の前面における前記操作レバーよりも下方に、上下方向を向くとともに、下端部が椅子における前記肘掛け支柱の取付部に設けられたワイヤ挿通孔に連通する凹溝を設け、この凹溝および前記ワイヤ挿通孔に、前記操作レバーに連係したワイヤを収容し、かつ前記凹溝の前面開口部を覆うカバーを、前記肘掛け支柱の前面に着脱自在に設けたことを特徴とする椅子の肘掛け装置。 An armrest that faces in the front-rear direction is provided at the upper end of the armrest strut that stands up from the side of the seat, and the position or urging force of each part of the chair is placed below the upper surface of the armrest on the armrest or armrest strut. In an armrest device for a chair provided with an operation lever for pulling a wire linked to an adjusting means for adjusting,
A concave groove is provided below the operation lever on the front surface of the armrest strut, facing the up and down direction and having a lower end communicating with a wire insertion hole provided in a mounting portion of the armrest strut in the chair. An armrest device for a chair, characterized in that a cover that accommodates a wire linked to the operation lever and that covers the front opening of the concave groove is detachably provided on the front surface of the armrest column in the wire insertion hole. . 肘掛け支柱を、側面視が前傾する菱形枠状とし、その上端に、肘当てを、その前端部が前記肘掛け支柱における前傾する前支柱部の上端よりも前方に突出するようにして設け、前記前支柱部の前上部に上向きに操作可能な操作レバーを設けるとともに、この操作レバーの直下において、前記前支柱部の前面に凹溝を設けたことを特徴とする請求項１に記載の椅子の肘掛け装置。   The armrest strut is in the shape of a rhombus frame that tilts forward when viewed from the side, and an elbow rest is provided at the upper end of the armrest strut so that its front end protrudes forward from the upper end of the front strut section tilted forward in the armrest strut, 2. The chair according to claim 1, wherein an operation lever operable upward is provided at an upper front portion of the front support column, and a concave groove is provided on a front surface of the front support unit immediately below the operation lever. Armrest device. 肘当ての前部と前支柱部の上端との間に、間隙を形成するための凹入段部を設けたことを特徴とする請求項２に記載の椅子の肘掛け装置。   The armrest device for a chair according to claim 2, wherein a recessed step portion for forming a gap is provided between a front portion of the armrest and an upper end of the front support column. 操作レバーを、凹溝と連通するようにして凹入段部に設けた後方に凹入する凹入部に収容したことを特徴とする請求項３に記載の椅子の肘掛け装置。   The armrest device for a chair according to claim 3, wherein the operation lever is accommodated in a recessed portion that is recessed backward provided in the recessed step portion so as to communicate with the recessed groove.
JP2012014698A 2012-01-27 2012-01-27 Chair armrest equipment Active JP5356550B2 (en)

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