JP3075672U - Backrest support structure with backrest height adjustment function - Google Patents
Backrest support structure with backrest height adjustment functionInfo
- Publication number
- JP3075672U JP3075672U JP2000005889U JP2000005889U JP3075672U JP 3075672 U JP3075672 U JP 3075672U JP 2000005889 U JP2000005889 U JP 2000005889U JP 2000005889 U JP2000005889 U JP 2000005889U JP 3075672 U JP3075672 U JP 3075672U
- Authority
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- Japan
- Prior art keywords
- backrest
- seat
- locking
- connection seat
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
(57)【要約】
【課題】 包装のコンパクト化が図れる背凭れの高さ調
整機能を有する背凭れの支持構造を提供する。
【解決手段】 座席に着脱自在に取り付けられて該座席
の背部から立設される支持桿と、背凭れに固定されて支
持桿に上下方向に移動自在にして嵌合されるガイド部を
有する滑動座と、該滑動座に固定される連結座及び背凭
れを構成する前後の背板間から下方に突出する支持桿取
付用の可動連結ロッドを該可動連結ロッドの突出長が複
数段階で調整可能となるように連結して成る高さ調整機
構と、を備えたことを特徴とする。
(57) [Problem] To provide a support structure of a backrest having a function of adjusting the height of the backrest capable of achieving compact packaging. SOLUTION: A slide having a support rod removably attached to a seat and standing upright from the back of the seat, and a guide part fixed to a backrest and vertically movably fitted to the support rod. The projecting length of the movable connecting rod can be adjusted in multiple stages for the seat, the connecting seat fixed to the sliding seat, and the movable connecting rod for mounting the support rod projecting downward from the front and rear back plates constituting the backrest. And a height adjusting mechanism that is connected so as to provide the following.
Description
【０００１】[0001]
本考案は、梱包時には座部と背凭れとが分離される椅子に用いられる、背凭 れの高さ調整機能を有する背凭れの支持構造（以下、「背凭れの支持構造」と略 称する）に関する。 The present invention relates to a backrest supporting structure having a function of adjusting the height of the backrest, which is used for a chair in which a seat portion and a backrest are separated during packing (hereinafter, abbreviated as "backrest supporting structure"). About.
【０００２】[0002]
この種の椅子は、図１１のように、座席11と背凭れ12と脚部13と背凭れの支持 構造２とを備え、背凭れ12は前背板121と後背板122とを接合して構成されている 。 As shown in FIG. 11, this type of chair includes a seat 11, a backrest 12, a leg 13, and a backrest support structure 2. The backrest 12 is formed by joining a front back plate 121 and a rear back plate 122 together. It is configured .
【０００３】 背凭れの支持構造２は、図12のように、滑動座21とこの滑動座21内にＬ字形状 の支持桿22の上端部を結合し、滑動座21の中央部位に設けられた係止ピン211と 支持桿22の上端部に穿設された縦溝孔221と縦溝孔221の一側縁に形成された係止 歯222と図外の制御ばね等との組合せにより、係止歯220に係止ピン211を係着さ せて滑動座21を適当な高さに設定でき、また、背凭れ12の前背板121と後背板122 とを接合する前に、滑動座21の四角の伸出部223をボルト224により前背板121背 面に螺着して支持桿22の上端部と滑動座21とを前背板121に取り付け、支持桿22 の下端部を座席11の底部に固定して座席11と背凭れ12とを連結するように構成さ れている。As shown in FIG. 12, a backrest support structure 2 is provided at a central portion of a sliding seat 21 by connecting a sliding seat 21 and an upper end portion of an L-shaped support rod 22 to the sliding seat 21. The locking pin 211, the vertical slot 221 formed in the upper end of the support rod 22, the locking teeth 222 formed in one side edge of the vertical slot 221 and a control spring (not shown), The sliding seat 21 can be set at an appropriate height by engaging the locking pin 211 with the locking tooth 220, and the sliding seat 21 can be set before the front back plate 121 and the rear back plate 122 of the backrest 12 are joined. The square extension portion 223 of 21 is screwed to the back surface of the front back plate 121 with a bolt 224, and the upper end of the support rod 22 and the sliding seat 21 are attached to the front back plate 121, and the lower end of the support rod 22 is seated. The seat 11 and the backrest 12 are connected to each other by being fixed to the bottom of the base 11.
【０００４】 そして、背凭れの支持構造２を組立てる場合には、滑動座21と支持桿22内に設 けられた上記の高さ調整部材を堅固に結合した後、前後の背板121,122を対向し て接合する。また、支持桿22を背凭れ12から取り外す場合には、前背板121から 後背板122を外した後、前背板122から滑動座21を外す。When assembling the support structure 2 for the backrest, the height adjustment member provided in the slide seat 21 and the support rod 22 is firmly connected, and then the front and rear back plates 121 and 122 are opposed to each other. And join. When the support rod 22 is to be removed from the backrest 12, the slide back 21 is removed from the front back plate 122 after the rear back plate 122 is removed from the front back plate 121.
【０００５】 しかし、前背板121に後背板122を接合するには、密着性が重視されるので、背 凭れの支持構造２の組立ては容易でない。However, in order to join the rear back plate 122 to the front back plate 121, adhesion is emphasized, and it is not easy to assemble the support structure 2 for the backrest.
【０００６】 そこで、椅子を工場生産して出荷するときには、背凭れ12に支持桿22を取り付 けたまま包装し、販売先で支持桿22の下端部を座席11に取り付けて椅子が組立て るようにしている。Therefore, when the chair is manufactured in a factory and shipped, the backrest 12 is wrapped with the support rod 22 attached thereto, and the lower end of the support rod 22 is attached to the seat 11 at the point of sale to assemble the chair. I have to.
【０００７】 しかし、背凭れ12からＬ字形の支持桿22が突出したまま梱包すると嵩張り、運 搬するのに不便であるという問題があった。However, there is a problem in that if the L-shaped support rod 22 is protruded from the backrest 12 and packed, it is bulky and inconvenient to carry.
【０００８】[0008]
本考案は、上記の点に鑑みてなされたものであって、前背板と後背板とに分離 することなく背凭れに支持桿を容易に着脱でき、包装のコンパクト化が図れる背 凭れの支持構造を提供することを目的とする。 The present invention has been made in view of the above points, and a support for a backrest that allows a support rod to be easily attached to and detached from a backrest without being separated into a front back plate and a back back plate, thereby achieving compact packaging. The purpose is to provide a structure.
【０００９】[0009]
上記目的を達成するために、本考案は、背凭れを構成する前背板と後背板との 間に高さ調整機構が内装される背凭れの高さ調整機能を有する背凭れの支持構造 において、座席に着脱自在に取り付けられ、該座席の背部から立設される支持桿 と、上記背凭れに固定され、上記支持桿に上下方向に移動自在にして嵌合される ガイド部を有する滑動座と、該滑動座に固定される連結座と、上記前後の背板間 から下方に突出する可動連結ロッドとを該可動連結ロッドの突出長が複数段階で 調整可能となるように連結して成る高さ調整機構とを備え、上記支持桿を上記背 凭れの前後の背板間に挿入して上記支持桿に上記滑動座の上記ガイド部を嵌合す ると共に、上記支持桿を上記可動連結ロッドに着脱自在に取り付けたことを特徴 とする背凭れの高さ調整機能を有する背凭れの支持構造を提供する。 In order to achieve the above object, the present invention relates to a backrest supporting structure having a height adjusting function of a backrest in which a height adjusting mechanism is provided between a front back plate and a rear back plate constituting a backrest. A sliding rod which is detachably attached to the seat, and is provided with a support rod which stands upright from the back of the seat, and a guide part which is fixed to the backrest and which is vertically movably fitted to the support rod. And a connecting seat fixed to the sliding seat and a movable connecting rod projecting downward from between the front and rear back plates so as to adjust the projecting length of the movable connecting rod in a plurality of steps. A height adjusting mechanism, wherein the support rod is inserted between the front and rear back plates of the backrest to fit the guide portion of the sliding seat into the support rod, and connects the support rod to the movable connection. The backrest, which is detachably attached to the rod Providing backrest support structure having adjustability is.
【００１０】 上記ガイド部は上記支持桿の両側縁が嵌入される溝レールにて構成されること が好ましい。[0010] It is preferable that the guide portion is formed of a groove rail into which both side edges of the support rod are fitted.
【００１１】 上記高さ調整機構は、板材に縦長孔を穿設すると共に該縦長孔内に斜め下方に 突出する係止歯を上記縦長孔の一側縁に沿って上下に列設することにより上記連 結座を形成し、係止部を有する揺動体を上記可動連結ロッドに取り付けると共に 、該揺動体を上記係止歯の方向に弾性付勢し、上記揺動体が弾性付勢されること により上記係止部が上記係止歯の下縁に係止して上記連結座の降下を規制し、上 記連結座を上昇させて上記係止部を弾性付勢力に抗して上記係止歯の上縁に沿っ て摺動させることにより上記係止部が上記係止歯から解放され、 且つ、上記連 結座が最高位置のときは上記係止歯方向への上記係止部の移動を規制して上記連 結座の降下を可能にし、上記連結座が最低位置のときには上記係止歯方向への上 記係止部の移動を可能にする係止制御機構を備えることにより構成されるのが好 ましい。[0011] The height adjusting mechanism is characterized in that a vertically long hole is formed in the plate material, and locking teeth projecting obliquely downward into the vertically long hole are vertically arranged along one side edge of the vertically long hole. The rocking member having the linking seat and having a locking portion is attached to the movable connecting rod, and the rocking member is elastically urged in the direction of the locking tooth, whereby the rocking member is elastically urged. As a result, the locking portion is locked to the lower edge of the locking tooth to restrict the lowering of the connection seat, and the connection seat is raised to lock the locking portion against the elastic urging force. When the locking portion is released from the locking tooth by sliding along the upper edge of the tooth, and when the connecting seat is at the highest position, the locking portion moves in the locking tooth direction. To allow the connecting seat to descend, and when the connecting seat is at the lowest position, Virtuous preferable to be configured by providing a locking control mechanism to allow movement of the retaining portion.
【００１２】 また、上記係止制御機構は、上記連結座の上記縦長孔の下端部を最下位の上記 係止歯よりも下方まで延設すると共に、上記縦長孔の上端部を最上位の上記係止 歯よりも上方まで延設し、上記可動連結ロッドの上端に鉤部を設け、上記縦長孔 の下端部に位置する上記係止部に上方から嵌合して上記係止歯方向への上記係止 部の移動を規制する定位凹部を有する滑り板を、上記鉤部と上記係止部との間で 相対移動可能にして上記可動連結ロッドに取り付け、上記滑り板を摩擦係合して 上記滑り板の上下方向の動きを規制する係合部を上記連結座に設け、上記連結座 が最高位置で、上記係止部が上記縦長孔の下端部に位置し且つ上記滑り板の上記 定位凹部に嵌合された状態から、上記連結座を降下させることにより、上記係止 部が上記摩擦係合に抗して上記滑り板と共に上記縦長孔の上端部まで相対移動し 、上記連結座が最低位置で、上記係止部が上記縦長孔の上端部に位置し且つ上記 滑り板の上記定位凹部に嵌合された状態から、上記連結座を上昇させることによ り、上記滑り板が上記摩擦係合により上記連結座と共に上昇して、上記係止部が 上記滑り板の定位凹部から解放されて上記係止歯に係止する一方、上記滑り板が 上記上昇後に上記鉤部で押し下げられるように構成されるのが好ましい。The locking control mechanism extends a lower end of the vertically long hole of the connection seat below the lowermost locking tooth and extends an upper end of the vertically long hole to the uppermost position. A hook is provided at the upper end of the movable connecting rod to extend above the locking teeth, and the hook is fitted from above to the locking portion located at the lower end of the vertically elongated hole so as to extend in the locking tooth direction. A sliding plate having a stereotactic recess for restricting the movement of the locking portion is attached to the movable connecting rod so as to be relatively movable between the hook portion and the locking portion, and the sliding plate is frictionally engaged. An engagement portion for regulating the vertical movement of the slide plate is provided on the connection seat, the connection seat is at the highest position, the locking portion is located at a lower end of the vertically long hole, and the positioning of the slide plate is performed. By lowering the connection seat from the state of being fitted into the recess, the locking portion is lowered. Moves relative to the upper end of the elongated hole together with the sliding plate against the frictional engagement, the connection seat is at the lowest position, the locking portion is located at the upper end of the elongated hole, and the sliding plate is The sliding plate is raised together with the connection seat by the frictional engagement by raising the connection seat from a state in which the sliding recess is fitted in the positioning recess, and the locking portion is positioned on the slide plate. It is preferable that the sliding plate is released from the concave portion and locked on the locking tooth, while the sliding plate is pushed down by the hook after the ascent.
【００１３】[0013]
以下、本考案の実施の形態を図に基づいて具体的に説明する。なお、本考案の 実施の形態はこれだけに限定されるものではない。 Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings. The embodiment of the present invention is not limited to this.
【００１４】 図１のように、椅子３は、座席31、背凭れ32、脚部33及び背凭れの支持構造４ を備え、背凭れ32は、対向して接合される前背板321と後背板322とから成る。As shown in FIG. 1, the chair 3 includes a seat 31, a backrest 32, a leg 33, and a support structure 4 for the backrest. And a plate 322.
【００１５】 背凭れの支持構造４は、図２のように、滑動座41、高さ調整機構42及び支持桿 43を備えている。As shown in FIG. 2, the support structure 4 of the backrest includes a sliding seat 41, a height adjusting mechanism 42, and a support rod 43.
【００１６】 滑動座41は、基板411の両側部から後方に一対の側板412をそれぞれ延設し、一 対の側板412の後方部の間に支持桿43を上下方向に案内する滑り案内空間413を形 成し、一対の側板412の後方部の対向する内壁面に溝レール416をそれぞれ設け、 各側板412の上下両端に螺着耳部414を形成し、基板411の上端部にボルト孔417を 穿設して構成されている。The sliding seat 41 has a pair of side plates 412 extending rearward from both sides of the substrate 411, and a sliding guide space 413 for vertically guiding the support rod 43 between the rear portions of the pair of side plates 412. A groove rail 416 is provided on each of inner wall surfaces opposite to the rear part of the pair of side plates 412, screw ears 414 are formed at upper and lower ends of each side plate 412, and a bolt hole 417 is formed at an upper end of the substrate 411. It is constructed by drilling.
【００１７】 滑動座41は、滑動座41の各螺着耳部414に通されるボルト415を背凭れ32の後背 板322に螺定して後背板322に固定され、滑動座41の下縁部は後背板322の下縁部 とほぼ合致している。The slide seat 41 is fixed to the back plate 322 by screwing a bolt 415 passed through each screw ear 414 of the slide seat 41 to the back plate 322 of the backrest 32, and the lower edge of the slide seat 41. The portion substantially matches the lower edge of the back plate 322.
【００１８】 高さ調整機構42は、滑動座41に固定される連結座５と、連結座５に取り付けら れる可動連結ロッド６とを備えている。The height adjusting mechanism 42 includes a connecting seat 5 fixed to the sliding seat 41 and a movable connecting rod 6 attached to the connecting seat 5.
【００１９】 連結座５は、併設される一対の板材51,51aを接合して扁平スリーブ状に形成さ れ、一方の板材51aの両側部は折曲されて係合部54,54が形成されている。各板材 51,51aには互いに対応する縦溝孔52,52aがそれぞれ穿設され、各縦溝孔52,52aの 各対応する一側縁を切り欠くことにより縦溝孔52,52a内に向けて斜め下方に突出 する複数の係止歯53,53aがそれぞれ形成され、各係止歯53,53aの下端縁には係着 縁531が形成され、一方の板材51の上端部には通孔511が穿設されている。また、 板材51,51aの縦長孔52,52aの下端部は最下位の係止歯53,53aよりも下方まで延設 され、縦長孔52,52aの上端部は最上位の係止歯53,53aよりも上方まで延設されて いる。The connection seat 5 is formed in a flat sleeve shape by joining a pair of plate members 51, 51a provided side by side, and both side portions of one plate member 51a are bent to form engagement portions 54, 54. ing. Corresponding flutes 52, 52a are formed in each of the plate members 51, 51a, and each of the flutes 52, 52a is cut into one corresponding side edge so as to be directed into the flutes 52, 52a. A plurality of locking teeth 53, 53a projecting obliquely downward, and a locking edge 531 is formed at the lower end edge of each locking tooth 53, 53a, and a through hole is formed at the upper end of one plate member 51. 511 are drilled. The lower ends of the vertically long holes 52, 52a of the plate members 51, 51a extend below the lowermost locking teeth 53, 53a, and the upper ends of the vertically long holes 52, 52a have the uppermost locking teeth 53, 53a. It extends to above 53a.
【００２０】 このように構成される連結座５は、通孔511に挿通されて滑動座41のねじ孔417 に螺合されるボルト510にて滑動座41の滑り案内空間413の前方部に固定されてい る。The connecting seat 5 configured as described above is fixed to a front portion of the sliding guide space 413 of the sliding seat 41 by a bolt 510 that is inserted into the through hole 511 and screwed into the screw hole 417 of the sliding seat 41. It has been done.
【００２１】 可動連結ロッド６のフラットバー状のロッド本体61は、上下一対の固定孔611 が穿設された下段半部と上段半部に分かれている。ロッド本体61の上段半部は連 結座５の一対の板材51,51a間に上下動自在にして挿入され、ロッド本体61の上端 の両側には一対の鉤部612がそれぞれ設けられ、一対の鉤部612の下方には収容部 613が穿設され、収容部613のうち連結座５の係止歯53と反対側の側縁には第1の 当接溝614が形成され、係止歯53側の側縁の下端には嵌着溝615が設けられている 。The flat bar-shaped rod body 61 of the movable connecting rod 6 is divided into a lower half and an upper half in which a pair of upper and lower fixing holes 611 are formed. The upper half of the rod body 61 is vertically movably inserted between the pair of plate members 51, 51a of the linking seat 5. A pair of hooks 612 are provided on both sides of the upper end of the rod body 61, respectively. A housing portion 613 is formed below the hook portion 612, and a first contact groove 614 is formed in a side edge of the housing portion 613 opposite to the locking tooth 53 of the connection seat 5. A fitting groove 615 is provided at the lower end of the side edge on the 53 side.
【００２２】 可動連結ロッド６の上端部には、軸ピン64（係止部の一例）が取り付けられる 揺動体62と、揺動体62に付設される滑り板63とが装着されている。A rocking body 62 to which a shaft pin 64 (an example of a locking portion) is attached and a sliding plate 63 attached to the rocking body 62 are mounted on the upper end of the movable connecting rod 6.
【００２３】 揺動体62は、可動連結ロッド６の収容部613よりも小さく形成され、上端部に は軸支孔621が穿設され、収容部613の第1の当接溝614に対応する一側縁には第2 の当接溝622が設けられ、下端部には収容部613の嵌着溝615に対応して鉤付部623 が形成されている。The oscillating body 62 is formed smaller than the housing portion 613 of the movable connecting rod 6, has a shaft support hole 621 formed at the upper end thereof, and corresponds to the first contact groove 614 of the housing portion 613. A second contact groove 622 is provided on the side edge, and a hooked portion 623 is formed at the lower end corresponding to the fitting groove 615 of the housing portion 613.
【００２４】 揺動体62を可動連結ロッド６の収容部613内に収容すると共に、鉤付部623を収 容部613の嵌着溝615内に揺動体62の上端部が揺動自在となるように嵌め込み、揺 動体62の上端部の揺動範囲は、連結座５の縦溝孔52と係止歯53の存在区域内とな るように設定されている。また、第2の当接溝622と可動連結ロッド６の第1の当 接溝614間には圧縮ばね624を介在させて揺動体62の上端部を連結座５の係止歯53 の方向にばね付勢している。The oscillating body 62 is accommodated in the accommodating portion 613 of the movable connecting rod 6, and the hooked portion 623 is inserted into the fitting groove 615 of the accommodating portion 613 so that the upper end of the oscillating body 62 can swing. The swing range of the upper end of the swing body 62 is set so as to be within the area where the vertical slot 52 of the connecting seat 5 and the locking teeth 53 exist. Also, a compression spring 624 is interposed between the second contact groove 622 and the first contact groove 614 of the movable connecting rod 6 so that the upper end of the rocking body 62 is moved in the direction of the locking teeth 53 of the connecting seat 5. The spring is biased.
【００２５】 滑り板63は、上端の両側縁には肩部631が設けられ、一側縁には弾性アーム632 が形成され、ほぼ中央部位には中空部633が穿設され、中空部633の上端縁には定 位凹部634が設けられている。The sliding plate 63 has shoulder portions 631 on both side edges at the upper end, an elastic arm 632 formed on one side edge, and a hollow portion 633 is formed at a substantially central portion. A positioning recess 634 is provided on the upper edge.
【００２６】 滑り板63は、可動連結ロッド６及び揺動体62と共に連結座５の挿嵌され、軸ピ ン64が中空部633に挿通されることにより可動連結ロッド６に取り付けられて可 動連結ロッド６と共に上下動し、且つ、可動連結ロッド６の鉤部612と軸ピン64 との間で相対移動可能となっている。The sliding plate 63 is fitted to the connection seat 5 together with the movable connection rod 6 and the swinging body 62, and is attached to the movable connection rod 6 by the shaft pin 64 being inserted into the hollow portion 633 so as to be movably connected. It moves up and down together with the rod 6 and is relatively movable between the hook portion 612 of the movable connecting rod 6 and the shaft pin 64.
【００２７】 また、滑り板63が連結座5内に下方から挿嵌されると、滑り板63 の弾性アーム 632が連結座５の一方の板材51aの係合部54に弾性的に接触することにより滑り板 63の両側部が連結座５の板材51aの係合部54,54に摩擦係合して適当な移動抵抗を 得るようになっており。また、定位凹部634の幅及び位置は連結座５の縦溝孔52, 52aと互いに対応するようになっている。When the sliding plate 63 is inserted into the connecting seat 5 from below, the elastic arm 632 of the sliding plate 63 elastically contacts the engaging portion 54 of the one plate member 51 a of the connecting seat 5. As a result, both sides of the sliding plate 63 are frictionally engaged with the engaging portions 54 of the plate member 51a of the connection seat 5 to obtain an appropriate movement resistance. The width and the position of the positioning recess 634 correspond to the vertical slots 52 and 52a of the connection seat 5.
【００２８】 図６のように、連結座5内に挿嵌された可動連結ロッド６、揺動体62、滑り板63 にうち、軸ピン64の中間部を揺動体62の軸支孔621に挿着し、軸ピン64の一端部 を連結座５の縦溝孔52,52a内に位置させ、軸ピン64の他端部を滑り板63の中空部 633内に位置させる。As shown in FIG. 6, of the movable connecting rod 6, the rocking body 62, and the sliding plate 63 inserted into the connecting seat 5, the intermediate portion of the shaft pin 64 is inserted into the shaft support hole 621 of the rocking body 62. Then, one end of the shaft pin 64 is positioned in the vertical slots 52, 52 a of the connection seat 5, and the other end of the shaft pin 64 is positioned in the hollow portion 633 of the slide plate 63.
【００２９】 支持桿43は、Ｌ字状に形成されて上端側の垂直部分431と垂直部分431の下端よ り延設される水平部分432とを備え、垂直部分431には上下一対の固定孔433が穿 設されている。The support rod 43 includes an L-shaped vertical portion 431 on the upper end side and a horizontal portion 432 extending from the lower end of the vertical portion 431. The vertical portion 431 has a pair of upper and lower fixing holes. 433 are drilled.
【００３０】 背凭れの支持構造４を組立てる場合には、図３に示すように、可動連結ロッド ６が取り付けられた連結座５を滑動座41に固定した後、滑動座41をその滑り案内 空間413が背凭れ42の後背板322に向くようにして後背板322に固定する。次に、 図４のように、後背板322に前背板321を接合することにより、滑動座41及び高さ 調整機構42を背凭れ32内に納める。When assembling the backrest support structure 4, as shown in FIG. 3, after the connecting seat 5 to which the movable connecting rod 6 is attached is fixed to the sliding seat 41, the sliding seat 41 is moved to its sliding guide space. The 413 is fixed to the back plate 322 such that the 413 faces the back plate 322 of the backrest 42. Next, as shown in FIG. 4, the sliding seat 41 and the height adjusting mechanism 42 are stored in the backrest 32 by joining the front backplate 321 to the rear backplate 322.
【００３１】 また、支持桿43を背凭れ32に連結する場合には、図３の仮想線部分6'が示すよ うに、可動連結ロッド６の下端部を一対の固定孔611が表れるまで後背板322の下 方に突出させ、次に、図4が示すように、支持桿43の垂直部分431を後背板322の 下方から滑動座41の滑り案内空間431内に挿入すると共に垂直部分431の両側縁を 滑動座41の溝レール416に遊嵌させる一方、垂直部分431の一対の固定孔433を可 動連結ロッド６の一対の固定孔611に対応させた後、ボルト434を固定孔433,611 に挿入して支持桿43と可動連結ロッド６とを螺定して連結する。When connecting the support rod 43 to the backrest 32, as shown by the phantom line portion 6 ′ in FIG. 3, the lower end of the movable connecting rod 6 is moved back until the pair of fixing holes 611 appear. Then, as shown in FIG. 4, the vertical portion 431 of the support rod 43 is inserted into the slide guide space 431 of the slide seat 41 from below the rear back plate 322 and both sides of the vertical portion The edge is loosely fitted to the groove rail 416 of the slide seat 41, and the bolts 434 are inserted into the fixing holes 433, 611 after the pair of fixing holes 433 of the vertical portion 431 correspond to the pair of fixing holes 611 of the movable connecting rod 6. Then, the support rod 43 and the movable connection rod 6 are screwed and connected.
【００３２】 その後、支持桿43の水平部分432を回転ノブ435付きねじロッド436により座席3 1の底部に着脱可能にして螺定する。Thereafter, the horizontal portion 432 of the support rod 43 is detachably attached to the bottom of the seat 31 by a screw rod 436 with a rotary knob 435 and screwed.
【００３３】 次に、背凭れ32の高さ調整するための操作について説明する。 背凭れ32の高さは、可動連結ロッド６の突出長さを調整することにより変更でき る。 （１） 図7は、連結座５を最高位置まで移動させた状態を示し、ロッド本体61の 上端は連結座５の縦溝孔52,52aの下端部と対応し、縦溝孔52の下端部内には軸ピ ン64が位置し、滑り板63の両肩部631がロッド本体61の両鉤部612に当接している 。Next, an operation for adjusting the height of the backrest 32 will be described. The height of the backrest 32 can be changed by adjusting the protruding length of the movable connecting rod 6. (1) FIG. 7 shows a state in which the connecting seat 5 is moved to the highest position. The upper end of the rod body 61 corresponds to the lower end of the vertical slot 52, 52a of the connecting seat 5, and the lower end of the vertical slot 52. The shaft pin 64 is located inside the part, and both shoulders 631 of the slide plate 63 are in contact with both hooks 612 of the rod body 61.
【００３４】 なお、連結座５は滑動座41を介して背凭れ32に固定されているので、使用者は 背凭れ32を介して連結座５を操作することとなり、以下の操作でも同様である。 （２） 次に、図８のように、連結座５を下向きに押すと、滑り板63は連結座５ の係合部54に摩擦係合しているので、当初は滑り板63は連結座５と一緒に下降す るが、滑り板63の定位凹部634が軸ピン64に嵌合した後は滑り板63は軸ピン64に て規制されて連結座５と一緒に下降しなくなる、このとき、滑り板63の両肩部63 1はロッド本体61の両鉤部612から離間する。Since the connecting seat 5 is fixed to the backrest 32 via the sliding seat 41, the user operates the connecting seat 5 via the backrest 32, and the same applies to the following operations. . (2) Next, as shown in FIG. 8, when the connecting seat 5 is pressed downward, the sliding plate 63 is frictionally engaged with the engaging portion 54 of the connecting seat 5, so that the sliding plate 63 is initially 5, but after the positioning recess 634 of the sliding plate 63 is fitted to the shaft pin 64, the sliding plate 63 is restricted by the shaft pin 64 and does not descend together with the connection seat 5. At this time, The shoulders 631 of the sliding plate 63 are separated from the hooks 612 of the rod body 61.
【００３５】 連結座５を更に下向きに押すと、軸ピン64は滑り板63の定位凹部634に規制さ れているので、軸ピン64が縦溝孔52,52aの中間部を通過しても揺動体62は係止歯 53方向には揺動できず、軸ピン64は何れの係止歯3内にも係止できない。 （３）図９のように、連結座５が下降して最低位置に至ると、軸ピン64は連結座 ５の板材51の縦溝孔52の上端部内に位置する。このとき、軸ピン64は滑り板63の 定位凹部634内に嵌合されたままであり、ロッド本体61の両鉤部612は滑り板63の 両肩部631から離間している。 （４）次に、図１０のように、連結座５を上向きに引くと、滑り板63は連結座５ の係合部54に摩擦係合しているので、当初は滑り板63は連結座５と一緒に移動し て滑り板63の定位凹部634が軸ピン64から離れ、軸ピン64が圧縮ばね624のばね付 勢により連結座５の最上段の係止歯53,53aの係着縁531,531aに係止する。これに より、連結座５の下向きの移動が阻まれて背凭れ32は最低の高さ位置で位置決め される。 （５）更に、連結座５を上向きに引くと、軸ピン64は圧縮ばね624のばね力に抗 して上から二段目の係止歯53,53aの上縦溝孔52の縁にガイドされ縦溝孔52内に一 旦戻された後、上から二段目の係止歯53,52aの係着縁531,531aに係止する。一方 、滑り板63の両肩部631はロッド本体61の両鉤部612にて係止されるので、滑り板 63は、軸ピン64と一定の距離以上に離れることはない。When the connecting seat 5 is pushed further downward, the shaft pin 64 is restricted by the positioning recess 634 of the slide plate 63, so that even if the shaft pin 64 passes through the intermediate portion between the vertical slots 52, 52 a. The rocking body 62 cannot rock in the direction of the locking teeth 53, and the shaft pin 64 cannot lock in any of the locking teeth 3. (3) As shown in FIG. 9, when the connection seat 5 is lowered to the lowest position, the shaft pin 64 is located in the upper end portion of the vertical slot 52 of the plate member 51 of the connection seat 5. At this time, the shaft pin 64 is still fitted in the positioning recess 634 of the slide plate 63, and the hooks 612 of the rod body 61 are separated from the shoulders 631 of the slide plate 63. (4) Next, as shown in FIG. 10, when the connecting seat 5 is pulled upward, the sliding plate 63 is frictionally engaged with the engaging portion 54 of the connecting seat 5, so that the sliding plate 63 is initially connected to the connecting seat 5. 5, the positioning recess 634 of the slide plate 63 is separated from the shaft pin 64, and the shaft pin 64 is engaged by the spring of the compression spring 624 to engage the engaging teeth 53, 53a of the uppermost locking teeth 53, 53a of the connection seat 5. Lock to 531,531a. As a result, the downward movement of the connecting seat 5 is prevented, and the backrest 32 is positioned at the lowest height position. (5) When the connection seat 5 is further pulled upward, the shaft pin 64 is guided by the edge of the upper vertical slot 52 of the second-stage locking teeth 53, 53a against the spring force of the compression spring 624. After being returned to the vertical slot 52 once, it is locked to the engaging edges 531 and 531a of the second-stage locking teeth 53 and 52a from above. On the other hand, since both shoulders 631 of the sliding plate 63 are locked by both hooks 612 of the rod body 61, the sliding plate 63 does not separate from the shaft pin 64 more than a certain distance.
【００３６】 このようにして、背凭れ32を所定の高さ位置に設定することができる。In this manner, the backrest 32 can be set at a predetermined height position.
【００３７】 そして、軸ピン64が連結座５の最下段の係止歯53,53aの係着縁531,531aから離 れた後は、図7に示す位置に戻る。After the shaft pin 64 is separated from the engaging edges 531 and 531a of the lowermost locking teeth 53 and 53a of the connection seat 5, the shaft pin 64 returns to the position shown in FIG.
【００３８】 このように、高さ調整機構42には、連結座５が最高位置のときは係止歯53,53a 方向への軸ピン64の移動を規制して連結座５（背凭れ32）の降下を可能にし、連 結座５が最低位置のときには係止歯53,53a方向への軸ピン64の移動を可能にする 係止制御機構が備わっている。As described above, when the connecting seat 5 is at the highest position, the height adjusting mechanism 42 restricts the movement of the shaft pin 64 in the direction of the locking teeth 53 and 53a, and the connecting seat 5 (backrest 32). And a locking control mechanism that allows the shaft pin 64 to move in the direction of the locking teeth 53, 53a when the connecting seat 5 is at the lowest position.
【００３９】 以上のように、背凭れの支持構造４の滑動座41、高さ調整機構42と背凭れ32を 一体に組立てた後に、支持桿43を着脱自在に高さ調整機構42に連結する。As described above, after assembling the slide seat 41, the height adjustment mechanism 42 and the backrest 32 of the backrest support structure 4 integrally, the support rod 43 is detachably connected to the height adjustment mechanism 42. .
【００４０】 椅子３を包装する際には、単にボルト434を外して支持桿43を高さ調整機構42か ら切り離して包装できる。When packing the chair 3, the support rod 43 can be separated from the height adjusting mechanism 42 by simply removing the bolt 434 and can be packed.
【００４１】 また、包装した支持桿43は、包装時に極めて容易に包装箱内の隙間を見付けだ して単独に収容でき、それ故全体の包装材積を有効に節減することができる。Further, the wrapped support rods 43 can easily find the gap in the wrapping box at the time of wrapping and can be housed alone, thereby effectively reducing the entire wrapping material volume.
【００４２】 しかも、包装をする時には、可動連結ロッド６を図3の実線で示すように突出 長が最も短い状態に調整すれば、背凭れを包装するときに可動連結ロッド６が邪 魔にならず、コンパクトに包装できる。Furthermore, when packaging, if the movable connecting rod 6 is adjusted to the state where the protruding length is shortest as shown by the solid line in FIG. 3, if the movable connecting rod 6 becomes an obstacle when packaging the backrest. And can be packaged compactly.
【００４３】[0043]
上記のように本考案の背凭れの支持構造によれば、支持桿を背凭れから分離し て包装できるので、包装全体の体積を小さくできる。しかも、支持桿は滑動座の ガイド部を嵌合すると共に、上記支持桿を上記可動連結ロッドに着脱自在に取り 付けたので、背凭れへの支持桿の取り付け状態が安定する。 As described above, according to the backrest support structure of the present invention, since the support rod can be separated from the backrest and packaged, the volume of the entire package can be reduced. In addition, since the support rod is fitted with the guide portion of the sliding seat and the support rod is detachably attached to the movable connecting rod, the mounting state of the support rod to the backrest is stabilized.
【００４４】 また、上記係止制御機構を有する上記高さ調整機構を採用したので、背凭れの 引き上げ及び押し下げ操作のみで背凭れを任意の高さに容易に設定することがで きる。Further, since the height adjusting mechanism having the locking control mechanism is employed, the backrest can be easily set to an arbitrary height only by the operation of raising and lowering the backrest.
【図１】本考案の実施形態の背凭れの支持構造を備えた
椅子の分解斜視図である。FIG. 1 is an exploded perspective view of a chair provided with a backrest support structure according to an embodiment of the present invention.
【図２】上記実施形態の背凭れの支持構造の要部を示す
分解斜視図である。FIG. 2 is an exploded perspective view showing a main part of a backrest supporting structure of the embodiment.
【図３】上記実施形態の背凭れの支持構造を背凭れの後
背板に取付けた状態を示す正面図である。FIG. 3 is a front view showing a state in which the backrest supporting structure of the embodiment is attached to a back plate of the backrest.
【図４】上記実施形態の背凭れの支持構造を背凭れの後
背板に取付けた状態を示す側縦断面図である。FIG. 4 is a side longitudinal sectional view showing a state in which the backrest supporting structure of the embodiment is attached to a back plate of the backrest.
【図５】上記実施形態の背凭れの支持構造を背凭れの後
背板に取付けた状態を示す側縦断面図である。FIG. 5 is a side longitudinal sectional view showing a state in which the backrest support structure of the embodiment is attached to a back plate of the backrest.
【図６】上記実施形態の背凭れの支持構造の分解斜視図
である。FIG. 6 is an exploded perspective view of the support structure of the backrest according to the embodiment.
【図７】上記実施形態の背凭れの支持構造による背凭れ
の高さ調整操作を示す図である。FIG. 7 is a diagram showing a height adjustment operation of the backrest by the backrest support structure of the embodiment.
【図８】上記実施形態の背凭れの支持構造による背凭れ
の高さ調整操作を示す図である。FIG. 8 is a diagram showing a height adjustment operation of the backrest by the backrest support structure of the embodiment.
【図９】上記実施形態の背凭れの支持構造による背凭れ
の高さ調整操作を示す図である。FIG. 9 is a diagram showing a height adjustment operation of the backrest by the backrest support structure of the embodiment.
【図１０】上記実施形態の背凭れの支持構造による背凭
れの高さ調整操作を示す図である。FIG. 10 is a diagram showing a height adjustment operation of the backrest by the backrest support structure of the embodiment.
【図１１】 従来例の背凭れの支持構造を備えた椅子の
分解斜視図である。FIG. 11 is an exploded perspective view of a chair provided with a conventional backrest support structure.
【図１２】 従来例の背凭れの支持構造を背凭れの後背
板に取付けた状態を示す正面図である。FIG. 12 is a front view showing a state in which a conventional backrest support structure is attached to a back plate of a backrest.
3：椅子 31：座席 311：固定板 32：背凭れ 33：脚枠 321：前背板 322：後背板 4：支持枠 41：滑動座 411：基板 412：側板 413：滑り案内空
間 414：螺着耳部 415：ボルト 416：溝レール 417：通孔 42：高さ調整機構 43：支持桿 431：垂直部分 432：水平部分 433：固定孔 434：ボルト 435：回転ノブ 436：ねじロッド 5：連結座 51：板材 510：固定手段 511：通孔 52：縦溝孔 53：係止歯 531：係着縁 6：可動連結ロッ
ド 61：ロッド本体 611：固定孔 612：鉤部 613：収容部 614：第1の当接溝 615：嵌着溝 62：揺動体 621：軸支孔 622：第2の当接溝 623：鉤付部 624：ばね 63：滑り板 631：肩部 632：弾性アーム 633：中空部 634：定位凹部 64：軸ピン3: Chair 31: Seat 311: Fixed plate 32: Backrest 33: Leg frame 321: Front back plate 322: Rear back plate 4: Support frame 41: Sliding seat 411: Board 412: Side plate 413: Sliding guide space 414: Screw-in Ear 415: Bolt 416: Groove rail 417: Through hole 42: Height adjustment mechanism 43: Support rod 431: Vertical part 432: Horizontal part 433: Fixing hole 434: Bolt 435: Rotary knob 436: Screw rod 5: Connection seat 51: plate material 510: fixing means 511: through hole 52: vertical slot 53: locking tooth 531: engaging edge 6: movable connecting rod 61: rod body 611: fixing hole 612: hook 613: accommodation part 614: first 1 contact groove 615: fitting groove 62: rocking body 621: shaft support hole 622: second contact groove 623: hooked part 624: spring 63: sliding plate 631: shoulder 632: elastic arm 633: hollow Part 634: Stereotactic recess 64: Shaft pin
Claims (4)
に高さ調整機構が内装される背凭れの高さ調整機能を有
する背凭れの支持構造において、 座席に着脱自在に取り付けられ、該座席の背部から立設
される支持桿と、 上記背凭れに固定され、上記支持桿に上下方向に移動自
在にして嵌合されるガイド部を有する滑動座と、 該滑動座に固定される連結座と、上記前後の背板間から
下方に突出する可動連結ロッドとを該可動連結ロッドの
突出長が複数段階で調整可能となるように連結して成る
高さ調整機構とを備え、 上記支持桿を上記背凭れの前後の背板間に挿入して上記
支持桿に上記滑動座の上記ガイド部を嵌合すると共に、
上記支持桿を上記可動連結ロッドに着脱自在に取り付け
たことを特徴とする背凭れの高さ調整機能を有する背凭
れの支持構造。1. A backrest supporting structure having a height adjustment function of a backrest in which a height adjustment mechanism is provided between a front back plate and a back back plate constituting a backrest, wherein the backrest is detachably attached to a seat. A support rod erecting from the back of the seat, a sliding seat fixed to the backrest, and having a guide portion fitted to the support rod so as to be vertically movable, and fixed to the slide seat. And a height adjusting mechanism for connecting a movable connecting rod projecting downward from between the front and rear back plates so that the projecting length of the movable connecting rod can be adjusted in a plurality of steps. Inserting the support rod between the front and rear back plates of the backrest and fitting the guide portion of the sliding seat to the support rod,
A backrest support structure having a backrest height adjusting function, wherein the support rod is detachably attached to the movable connecting rod.
入される溝レールにて構成されていることを特徴とする
請求項１に記載の背凭れの高さ調整機能を有する背凭れ
の支持構造。2. The backrest according to claim 1, wherein the guide portion is formed by a groove rail into which both side edges of the support rod are fitted. Support structure.
突出する係止歯を上記縦長孔の一側縁に沿って上下に列
設することにより上記連結座を形成し、 係止部を有する揺動体を上記可動連結ロッドに取り付け
ると共に、該揺動体を上記係止歯の方向に弾性付勢し、 上記揺動体が弾性付勢されることにより上記係止部が上
記係止歯の下縁に係止して上記連結座の降下を規制し、
上記連結座を上昇させて上記係止部を弾性付勢力に抗し
て上記係止歯の上縁に沿って摺動させることにより上記
係止部が上記係止歯から解放され、 且つ、上記連結座が最高位置のときは上記係止歯方向へ
の上記係止部の移動を規制して上記連結座の降下を可能
にし、上記連結座が最低位置のときには上記係止歯方向
への上記係止部の移動を可能にする係止制御機構を備え
ることにより構成されることを特徴とする請求項１又は
２記載の背凭れの高さ調整機能を有する背凭れの支持構
造。3. The height adjusting mechanism comprises: forming a vertically long hole in a plate; and vertically arranging locking teeth projecting obliquely downward into the vertically long hole along one side edge of the vertically long hole. Thus, the connecting seat is formed, and the rocking body having the locking portion is attached to the movable connecting rod, and the rocking body is elastically biased in the direction of the locking tooth, whereby the rocking body is elastically biased. The locking portion locks to the lower edge of the locking tooth to restrict the lowering of the connection seat,
By raising the connection seat and sliding the locking portion along the upper edge of the locking tooth against the elastic urging force, the locking portion is released from the locking tooth, and When the connection seat is at the highest position, the movement of the locking portion in the direction of the locking tooth is restricted to allow the lowering of the connection seat, and when the connection seat is at the lowest position, the movement in the direction of the locking tooth is enabled. 3. The backrest supporting structure having a function of adjusting the height of the backrest according to claim 1 or 2, further comprising a locking control mechanism that enables the locking portion to move.
よりも下方まで延設すると共に、上記縦長孔の上端部を
最上位の上記係止歯よりも上方まで延設し、 上記可動連結ロッドの上端に鉤部を設け、 上記縦長孔の下端部に位置する上記係止部に上方から嵌
合して上記係止歯方向への上記係止部の移動を規制する
定位凹部を有する滑り板を、上記鉤部と上記係止部との
間で相対移動可能にして上記可動連結ロッドに取り付
け、 上記滑り板を摩擦係合して上記滑り板の上下方向の動き
を規制する係合部を上記連結座に設け、 上記連結座が最高位置で、上記係止部が上記縦長孔の下
端部に位置し且つ上記滑り板の上記定位凹部に嵌合され
た状態から、上記連結座を降下させることにより、上記
係止部が上記摩擦係合に抗して上記滑り板と共に上記縦
長孔の上端部まで相対移動し、 上記連結座が最低位置で、上記係止部が上記縦長孔の上
端部に位置し且つ上記滑り板の上記定位凹部に嵌合され
た状態から、上記連結座を上昇させることにより、上記
滑り板が上記摩擦係合により上記連結座と共に上昇し
て、上記係止部が上記滑り板の定位凹部から解放されて
上記係止歯に係止する一方、上記滑り板が上記上昇後に
上記鉤部で押し下げられるように構成されたことを特徴
とする請求項３記載の背凭れの高さ調整機能を有する背
凭れの支持構造。4. The locking control mechanism extends a lower end of the elongated hole of the connection seat below the lowermost locking tooth, and extends an upper end of the elongated hole to the uppermost position. A hook portion is provided at an upper end of the movable connecting rod, and a hook portion is provided at an upper end of the movable connecting rod. A sliding plate having a stereotactic recess for restricting the movement of the locking portion is attached to the movable connecting rod so as to be relatively movable between the hook portion and the locking portion, and the sliding plate is frictionally engaged. An engagement portion for regulating the vertical movement of the slide plate is provided on the connection seat, the connection seat is at a highest position, the locking portion is located at a lower end of the vertically long hole, and the positioning of the slide plate is performed. By lowering the connection seat from the state of being fitted in the concave portion, the locking portion is Relative to the upper end of the vertical hole together with the slide plate against the engagement, the connection seat is at the lowest position, the locking portion is located at the upper end of the vertical hole, and the positioning of the slide plate By raising the connection seat from the state fitted in the recess, the sliding plate is raised together with the connection seat by the frictional engagement, and the locking portion is released from the positioning recess of the slide plate. 4. The backrest having the function of adjusting the height of the backrest according to claim 3, wherein the slide plate is configured to be pushed down by the hook portion after the slide plate is raised while the slide plate is raised. Support structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000005889U JP3075672U (en) | 2000-08-16 | 2000-08-16 | Backrest support structure with backrest height adjustment function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000005889U JP3075672U (en) | 2000-08-16 | 2000-08-16 | Backrest support structure with backrest height adjustment function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP3075672U true JP3075672U (en) | 2001-02-27 |
Family
ID=43208777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000005889U Expired - Lifetime JP3075672U (en) | 2000-08-16 | 2000-08-16 | Backrest support structure with backrest height adjustment function |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3075672U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006073019A1 (en) * | 2005-01-07 | 2006-07-13 | Train Corporation | Chair |
-
2000
- 2000-08-16 JP JP2000005889U patent/JP3075672U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006073019A1 (en) * | 2005-01-07 | 2006-07-13 | Train Corporation | Chair |
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