JP4387823B2 - Mounting structure of support base cover in chair - Google Patents
Mounting structure of support base cover in chair Download PDFInfo
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- JP4387823B2 JP4387823B2 JP2004035476A JP2004035476A JP4387823B2 JP 4387823 B2 JP4387823 B2 JP 4387823B2 JP 2004035476 A JP2004035476 A JP 2004035476A JP 2004035476 A JP2004035476 A JP 2004035476A JP 4387823 B2 JP4387823 B2 JP 4387823B2
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Description
本発明は、椅子における脚柱の上端に設けられ、座および背もたれを支持する支基における上面が開口する箱状の支基べース上に、その上端開口部を覆う支基カバーを取り付ける取付構造に関する。 The present invention is an attachment in which a support base cover that covers an upper end opening portion is mounted on a box-shaped support base that is provided at an upper end of a pedestal in a chair and has an upper surface that opens on a support base that supports a seat and a backrest. Concerning structure.
従来の椅子の支基カバーは、ねじまたはボルトにより支基べースに固定されている(例えば特許文献1参照)。
しかし、製造工程においてこのようなねじ止め作業を行う場合、それに先だって支基カバーを支基べースに正確に位置決めしなければならず、作業が繁雑となり、作業時間が長くなるとともに、ねじまたはボルトの頭部が外部に露呈し、体裁が悪くなる等の問題がある。 However, when such a screwing operation is performed in the manufacturing process, the support cover must be accurately positioned on the support base prior to that, which complicates the operation and increases the work time. There is a problem that the head of the bolt is exposed to the outside and the appearance is deteriorated.
また、このようなねじ止め作業に代えて、支基カバーに設けた複数の係合爪を、支基べースに設けた係合孔または段部等に係止させて、支基カバーを支基べースに取り付けることが考えられるが、このように単に係合爪を係合孔に係止させるだけでは、外部からの衝撃や振動等により、支基べースががたついたり、外れたりするおそれがある。 In place of such screwing work, the support base cover is fixed by engaging a plurality of engagement claws provided on the support base cover with engagement holes or stepped portions provided on the support base. Although it is possible to attach it to the support base, if the engagement claw is simply locked in the engagement hole in this way, the support base will rattle due to external impact or vibration. There is a risk of detachment.
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、高精度な位置合わせをしなくても、ワンタッチで支基カバーを支基ベースに簡単かつ円滑に係合させることができ、しかも支基カバーががたついたり外れたりすることがないようにした椅子における支基カバーの取付構造を提供することを目的としている。 In view of the above-mentioned problems of the prior art, the present invention allows the support cover to be easily and smoothly engaged with the support base with one touch without performing highly accurate positioning. Moreover, it is an object of the present invention to provide a mounting structure for a support cover in a chair that prevents the support cover from rattling or coming off.
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)椅子における脚柱の上端に設けられ、座および背もたれを支持する支基における上面が開口する箱状の支基べース上に、その上端開口部を覆う支基カバーを取り付ける取付構造であって、前記支基カバーの前部の下面に、下端部に爪を有する弾性撓曲可能な左右１対の係止片と、１個の突片とを、該突片が左右の係止片の左右方向の中間に位置するようにして下向き突設するとともに、前記支基カバーの後部の下面に、左右１対の案内突片と、下端部に爪を有する弾性撓曲可能な１個の係止片とを、該係止片が左右の案内突片の左右方向の中間に位置するようにして下向き突設し、前記支基べースの前部に、前記支基カバーの前部における左右１対の係止片の爪が外側から係合するようにした係合孔を上端部に有する左右１対の起立片と、前記突片の後縁が当接する当接部とを立設するとともに、前記支基べースの後部に、前記各案内突片の前後の縁に摺接して、各案内突片を前後方向に位置決めする前後１対の起立片と、前記支基カバーの後部における係止片の爪が後方から係合するようにした係合孔を上端部に有する起立片とを立設する。
According to the present invention, the above problem is solved as follows.
(1) A mounting structure for mounting a support cover covering the upper end opening on a box-shaped support base provided at the upper end of a pedestal in a chair and opening the upper surface of the support supporting the seat and the backrest. A pair of left and right elastically bendable locking pieces having a claw at the lower end and a single protruding piece on the lower surface of the front portion of the support base cover, and the protruding piece on the left and right sides. It is provided with a pair of left and right guide protrusions on the lower surface of the rear part of the support cover, and an elastically bendable 1 having a claw at the lower end. A plurality of locking pieces projecting downward so that the locking pieces are located in the middle of the left and right guide protrusions, and at the front part of the support base, A pair of left and right upright pieces having engaging holes at the upper end so that the claws of the pair of left and right engaging pieces in the front part engage from the outside; The projecting piece is erected in contact with the rear edge of the projecting piece, and is in sliding contact with the front and rear edges of the guide projecting piece at the rear part of the support base. A standing pair of front and rear standing pieces, and a standing piece having an engagement hole at the upper end portion, which engages with a claw of a locking piece at the rear portion of the support base cover from the rear .
(２)上記(１)項において、支基カバーの周縁部に設けた拡幅段部を、支基ベースの上端縁部に外嵌する。 (2) In the above item (1), the widened step provided on the peripheral edge of the support base cover is externally fitted to the upper end edge of the support base.
(３)上記(１)または(２)項において、案内突片を、上方に向かって拡開する倒立台形状とし、この案内突片が、支基ベース上に設けられた１対の起立片間に楔入するようにする。 (3) above (1) or (2) Oite in section a guide protrusion, and an inverted trapezoidal shape that widens upward, the guide protrusion is a pair of which is provided on the support base base Make a wedge between the standing pieces.
(４)上記(３)項において、１対の起立片のいずれか一方に係合孔を設けることにより、その起立片と支基カバーの後部における係止片の爪が係合する起立片とを共通とする。 (4) above (3) Oite in section by Rukoto provided engaging hole in one of the pair of upright pieces, pawls of the locking piece at the rear of the standing piece and the support base cover are engaged you and standing pieces and the common.
(５)上記(１)〜(４)項のいずれかにおいて、起立片を、支基ベースを左右方向に貫通する軸が嵌合された軸受を支基ベースに固定する押え金具と一体的に形成する。 (5) In any of the above items (1) to (4) , the upright piece is integrated with the presser fitting for fixing the bearing fitted with the shaft penetrating the support base in the left-right direction to the support base. Form.
各請求項に記載された発明は、次のような効果を奏することができる。
(１)請求項１：いずれかの係止片が、複数の案内突片の間に位置して、それらの案内突片により支基ベースに対して位置決めされるので、高精度な位置合わせをしなくても、ワンタッチで支基カバーを支基ベースに簡単かつ円滑に係合させることができ、しかも支基カバーががたついたり外れたりすることがない。
The invention described in each claim can achieve the following effects.
(1) Claim 1: Since any one of the locking pieces is positioned between the plurality of guide protrusions and is positioned with respect to the support base by these guide protrusions, highly accurate alignment is achieved. Even if it is not, the support cover can be easily and smoothly engaged with the support base with one touch, and the support cover does not rattle or come off.
(２)請求項２：支基カバーの周縁部に設けた拡幅段部を、支基ベースの上端縁部に外嵌したので、支基ベースに対して支基カバー全体が大まかに位置決めされ、係止片や案内突片を支基ベースに容易に装着することができる。 (2) Claim 2: Since the widened step provided on the peripheral edge of the support base cover is fitted on the upper end edge of the support base, the entire support cover is roughly positioned with respect to the support base. The locking piece and the guide protrusion can be easily attached to the support base.
(３)請求項３：支基カバーの装着時に、案内突片が１対の起立片間に楔入することにより、起立片およびそれに伴って支基カバー全体が、円滑に位置決めされ、支基カバーを容易に装着できるようにすることに寄与することができる。 (3) Claim 3 : When the support cover is mounted, the guide protrusions are wedged between the pair of upright pieces, so that the upright pieces and the whole support base cover are positioned smoothly, and the support base is thus positioned. It can contribute to making it possible to easily attach the cover.
(４)請求項４：１対の起立片のいずれか一方に係合孔を設け、これに係止片の爪を係合させるようにしたことにより、案内突片を位置決めするための起立片と、係止片を係止するための起立片とを１個の起立片ですますことができ、部品点数を削減することができる。 (4) Claim 4 : An upright piece for positioning the guide projection piece by providing an engagement hole in one of the pair of upright pieces and engaging the claw of the engaging piece with the engagement hole. And the standing piece for locking the locking piece can be increased by one standing piece, and the number of parts can be reduced.
(５)請求項５：細かな部品である起立片を、押え金具と一体的に形成したことにより、部品点数を削減、および製造コストの低減を図ることができるだけでなく、細かな部品の紛失を防止することができる。 (5) Claim 5 : Since the upright piece, which is a fine part, is formed integrally with the presser fitting, not only can the number of parts be reduced and the manufacturing cost can be reduced, but also the loss of fine parts. Can be prevented.
以下、本発明の一実施形態を、図１〜図５を参照して説明する。
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。
この椅子の概略構成について簡単に説明すると、この椅子は、放射状の５本の脚(１)の中心に立設された脚柱(２)を備え、この脚柱(２)の上端に、前後方向に長い支基(３)が回転自在に取付けられている。
Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a side view of a chair provided with an embodiment of the present invention.
Briefly explaining the general structure of this chair, this chair is provided with a pedestal (2) standing upright at the center of five radial legs (1). A long support base (3) is rotatably mounted.
支基(３)には、背もたれ(４)を支持する左右１対の背杆(５)(５)における背もたれ(４)の下端より前方に延出する部分の前端部が、左右方向を向く軸(６)をもって枢着されており、背杆(５)(５)の中間部同士を連結する連結材(図示略)と支基(３)の後端部とには、背もたれ(４)を前方に起立するように付勢する付勢手段をなす公知のガススプリング(８)の各端部が、左右方向を向く軸(8a)(8b)をもって連結されている。 In the support base (3), the front end portion of the pair of left and right backrests (5) and (5) supporting the backrest (4) that extends forward from the lower end of the backrest (4) faces in the left-right direction. It is pivotally attached with a shaft (6), and a backrest (4) is connected to a connecting member (not shown) for connecting the intermediate portions of the dorsal fins (5) and (5) and a rear end portion of the support base (3). Each end portion of a known gas spring (8) that constitutes an urging means for urging the two to stand forward is connected with shafts (8a) and (8b) facing in the left-right direction.
座(９)を支持する座フレーム(10)における前部の左右方向を向く支持軸(11)は、支基(３)の前部に設けられた後下方に向かって傾斜する長孔(12)に、その長手方向に摺動可能として嵌合されており、また座フレーム(10)における後部の左右方向を向く支持軸(13)は、１対の背杆(５)(５)の中間部に、連結金具(14)をもって連結されている。 A support shaft (11) facing the left-right direction of the front portion of the seat frame (10) that supports the seat (9) is a long hole (12) that is provided at the front portion of the support base (3) and is inclined downward. ) Is slidably fitted in the longitudinal direction thereof, and the support shaft (13) facing the left-right direction of the rear portion of the seat frame (10) is intermediate between the pair of dorsal fins (5) and (5). The part is connected with a connecting metal fitting (14).
図２に示すように、支基(３)内には、前部の支持軸(11)の中間部に前端が当接して、座(９)を前方に向かって付勢するばね(この例では前後方向を向く圧縮コイルばね)(15)と、このばね(15)の付勢力を調節する調節手段(16)とが設けられている。 As shown in FIG. 2, in the support base (3), a front end abuts against an intermediate portion of the front support shaft (11) to urge the seat (9) forward (this example) Then, a compression coil spring (15) facing in the front-rear direction and an adjusting means (16) for adjusting the urging force of the spring (15) are provided.
かくして、ガススプリング(８)およびばね(15)の付勢力に抗して、背もたれ(４)を後方に押動することにより、背もたれ(４)を、軸(６)を中心として後傾させることができるとともに、背もたれ(４)の後傾に連動して、座(９)が後下方に向かって移動させられるようになっている。 Thus, the backrest (4) is tilted backward about the axis (6) by pushing the backrest (4) backward against the biasing force of the gas spring (8) and spring (15). The seat (9) can be moved rearward and downward in conjunction with the back tilt of the backrest (4).
本発明は、このようなリクライニング椅子において、以下に詳細に説明するような支基(３)の具体的な構造、特に支基カバーの取付構造に特徴を有している。
支基(３)は、下側の金属板製の支基ベース(17)と、この支基ベース(17)の蓋をなす合成樹脂製の支基カバー(18)とを備えている。
In the reclining chair, the present invention is characterized by a specific structure of the support base (3), particularly a mounting structure of the support cover, as will be described in detail below.
The support base (3) includes a support base (17) made of a lower metal plate, and a support base cover (18) made of a synthetic resin that serves as a lid for the support base (17).
図２以下に示すように、支基ベース(17)は、上面が開口する前後方向に長い浅い箱状をなし、その後部中央には、脚柱(２)の上部が貫通する貫通孔が(17a)設けられている。
支基ベース(17)の後端上部には、ほぼ水平をなす上面板(19)が、その両側縁を支基ベース(17)における上向きの側片(17b)の内面に溶接することにより固着されている。
As shown in FIG. 2 and subsequent figures, the support base (17) has a shallow box shape that is long in the front-rear direction with the upper surface opened, and a through-hole through which the upper part of the pedestal (2) passes ( 17a) is provided.
A substantially horizontal top plate (19) is fixed to the upper rear end of the support base (17) by welding both side edges to the inner surface of the upward side piece (17b) of the support base (17). Has been.
図４〜図６に示すように、上面板(19)の後部中央には嵌合孔(20)が設けられ、この嵌合孔(20)には、上下方向を向く筒体(21)が下方より嵌合され、筒体(21)の下端に設けられた拡径フランジ(21a)が上面板(19)の下面に溶接により固着されている。また、筒体(21)の上部は、上面板(19)の上面に溶接により固着された下端が開口する蓋状の補強材(22)の上壁に穿設された嵌合孔(23)に下方より嵌合され、かつその外周部は、嵌合孔(23)の縁に溶接され、補強されている。
筒体(21)には、脚柱(２)内に設けられた、支基(３)の高さ調節用のガススプリング(図示略)の上端部が下方より嵌合され、それによって支基(３)は、脚柱(２)、より詳しくはガススプリングにより、高さ調節可能として支持されている。
As shown in FIGS. 4 to 6, a fitting hole (20) is provided at the center of the rear portion of the top plate (19), and a cylindrical body (21) facing vertically is provided in the fitting hole (20). A diameter-enlarged flange (21a) fitted from below and provided at the lower end of the cylindrical body (21) is fixed to the lower surface of the upper plate (19) by welding. The upper part of the cylindrical body (21) is a fitting hole (23) drilled in the upper wall of a lid-shaped reinforcing material (22) whose lower end is fixed to the upper surface of the upper plate (19) by welding. The outer peripheral portion is welded to the edge of the fitting hole (23) and reinforced.
An upper end of a gas spring (not shown) for adjusting the height of the support base (3) provided in the pedestal (2) is fitted to the cylindrical body (21) from below, whereby the support base (3) is fitted. (3) is supported by a pedestal (2), more specifically a gas spring, so that the height can be adjusted.
上面板(19)の後端には、支基ベース(17)における上向きの後片(17c)の上縁中央に設けられた方形の切り欠き(25)を通って後方に突出する突部(19a)が形成され、この突部(19a)の両側端から支基ベース(17)の後片(17c)の後面に沿って垂下する両側片(19b)(19b)の下端部には、上述したガススプリング(８)(図１および図２参照)の前下端部を枢着する軸(8b)が嵌合される軸受孔(26)が設けられている。 At the rear end of the upper surface plate (19), a protrusion projecting backward through a rectangular notch (25) provided at the center of the upper edge of the upward rear piece (17c) in the support base (17) ( 19a) is formed, and the lower ends of both side pieces (19b) and (19b) hanging along the rear surface of the rear piece (17c) of the support base (17) from both side ends of the projection (19a) A bearing hole (26) is provided in which a shaft (8b) pivotally attached to the front lower end of the gas spring (8) (see FIGS. 1 and 2) is fitted.
上面板(19)の前部には、起立壁(19c)とその上端より前上方を向く前片(19d)とが設けられ、その上面板(19)の前部上面には、図２および図３に示すように、側面視ほぼ下向きコ字状をなす押え金具(27)が、ねじ(図示略)をもって固着されている。 A front wall (19c) and a front piece (19d) facing the front upper side from the upper end of the upper surface plate (19) are provided on the front surface of the upper surface plate (19). As shown in FIG. 3, a presser fitting (27) having a substantially U shape in a side view is fixed with a screw (not shown).
押え金具(27)の上面には、前後１対の起立片(28a)(28a)を有する側面視上向きコ字状のブラケット(28)が、溶接により固着されている。後部の起立片(28a)のほぼ中央部には、前後方向に貫通する横長の係合孔(28b)が設けられている。 On the upper surface of the presser fitting (27), a bracket (28) having an upward U-shape with a pair of front and rear standing pieces (28a) (28a) is fixed by welding. A laterally long engagement hole (28b) penetrating in the front-rear direction is provided at a substantially central portion of the rear standing piece (28a).
図２〜図５に示すように、押え金具(27)と上面板(19)との間に形成された側面視ほぼ正方形の空所(29)には、上下２分割構造とした左右１対の軸受(30)(30)が設けられ、この軸受(30)(30)によって、背杆(５)(５)を枢支する軸(６)が支持されている。
また、支基ベース(17)の両側片(17b)における空所(29)に連続する部分には、Ｕ字状の切り欠き(31)が上端より切設され、これを通って軸受(30)が外側方に突出しうるようになっている。
As shown in FIG. 2 to FIG. 5, a pair of left and right sides having a vertically split structure is formed in a substantially square space (29) formed between the presser fitting (27) and the top plate (19). The bearings (30) and (30) are provided, and the shaft (6) that pivotally supports the backpacks (5) and (5) is supported by the bearings (30) and (30).
In addition, a U-shaped notch (31) is cut from the upper end of the support base (17) on both side pieces (17b) continuous with the void (29), and the bearing (30 ) Can protrude outward.
上面板(19)における前片(19d)の前端中央には、方形の切り欠き(図示略)が設けられ、ここに、平面視前向きコ字状をなすばね受け板(33)が嵌合され、かつ溶接されている。このばね受け板(33)の前方には、上述した調節手段(16)とばね(15)とが収容され、ばね受け板(33)は、調節手段(16)を介してばね(15)の後端の荷重を受けている。
なお、調節手段(16)の具体的な構成は、本発明には直接関係しないので、その詳細な説明は省略する。この調節手段(16)を省略して、ばね(15)の後端を直接ばね受け板(33)により受支するようにすることもできる。
A square notch (not shown) is provided in the center of the front end of the front piece (19d) of the upper surface plate (19), and a spring receiving plate (33) having a U-shape facing forward in plan view is fitted therein. And are welded. The adjusting means (16) and the spring (15) described above are accommodated in front of the spring receiving plate (33), and the spring receiving plate (33) is connected to the spring (15) via the adjusting means (16). The rear end load is received.
Note that the specific configuration of the adjusting means (16) is not directly related to the present invention, and thus detailed description thereof is omitted. The adjusting means (16) may be omitted, and the rear end of the spring (15) may be directly supported by the spring receiving plate (33).
支基ベース(17)における両側片(17b)(17b)の前部には、後部における切り欠き(31)と同様のＵ字状の切り欠き(34)が設けられており、その内側には、上下２分割構造とした左右１対の軸受(35)(35)を上下から挟んで支基ベース(17)内に固定する押え金具(36)と受け金具(37)とが設けられ、それらはねじ(38)をもって支基ベース(17)に固着されている。
この軸受(35)(35)内に、上述した後下方を向く長孔(12)が形成され、この長孔(12)に、座フレーム(10)における前部の支持軸(11)が、その長手方向に沿って摺動可能として嵌合されている。
A U-shaped notch (34) similar to the notch (31) at the rear is provided at the front of both side pieces (17b) (17b) on the support base (17), A holding bracket (36) and a receiving bracket (37) are provided to hold the pair of left and right bearings (35) and (35), which are divided into upper and lower parts, between the upper and lower sides and fixed in the support base (17). Is fixed to the support base (17) with screws (38).
In the bearings (35) and (35), the long hole (12) facing downward is formed, and the support shaft (11) at the front portion of the seat frame (10) is formed in the long hole (12). It is fitted so as to be slidable along the longitudinal direction.
押え金具(36)は、左右方向に長い水平片(36a)と、その前後の縁より垂下する側片(36b)(36b)と、各側片(36b)の下端より前方および後方に突出する取付片(36c)(36c)とを備え、後方の取付片(36c)から後方の側片(36b)および水平片(36a)の前端までにかけての中央部に、平面視方形の切り欠き(39)が形成されている。この切り欠き(39)内には、ばね(15)の前部と、前部の支持軸(11)の中央部に当接するばね受け(40)とが収容されている。
押え金具(36)の水平片(36a)における切り欠き(39)の左右の縁には、１対の起立片(41)が切り起こして形成されており、各起立片(41)の上端部には、左右方向に貫通する横長の係合孔(42)がそれぞれ設けられている。
The presser fitting (36) protrudes forward and backward from the horizontal piece (36a) that is long in the left-right direction, side pieces (36b) and (36b) that hang from the front and rear edges, and the lower end of each side piece (36b). A flat cutout (39) in the center from the rear mounting piece (36c) to the rear side piece (36b) and the front end of the horizontal piece (36a). ) Is formed. The notch (39) accommodates a front portion of the spring (15) and a spring receiver (40) that contacts the central portion of the front support shaft (11).
A pair of upright pieces (41) are formed by cutting and raising the left and right edges of the notch (39) in the horizontal piece (36a) of the presser fitting (36), and the upper end of each upright piece (41). Each has a horizontally long engagement hole (42) penetrating in the left-right direction.
支基ベース(17)の上端開口部を覆う支基カバー(18)は、支基ベース(17)の上面形状よりわずかに大きく、かつ下面が開口する浅い箱状をなし、その周縁部には、支基ベース(17)の上端縁部に外嵌する拡幅段部(43)が設けられるとともに、支基ベース(17)の両側部より突出する前後の軸受(35)(35)(30)(30)に上方より嵌合する切り欠き(44)(44)(45)(45)が設けられている。 The support cover (18) that covers the upper end opening of the support base (17) is slightly larger than the top shape of the support base (17) and has a shallow box shape with an open bottom surface. The front and rear bearings (35), (35), and (30) are provided with widening stepped portions (43) that are externally fitted to the upper edge of the support base (17) and project from both sides of the support base (17). Notches (44), (44), (45), and (45) that are fitted to (30) from above are provided.
支基カバー(18)の後部下面中央には、ブラケット(28)における後部の起立片(28a)に設けられた係合孔(28b)に後方より係合しうる左右方向を向く爪(46a)を有する弾性撓曲可能な係止片(46)が下向き突設されている。また、支基カバー(18)の後部下面両側部には、上方に向かって拡開する倒立台形状の左右１対の案内突片(47)(47)が、それらの間に係止片(46)が位置するようにして下向き突設されている。この両案内突片(47)(47)は、支基カバー(18)の下降時に、ブラケット(28)における前後の起立片(28a)(28a)間に摺接しつつ楔入し、係止片(46)を支基ベース(17)に対して位置決めする作用をする。 At the center of the lower surface of the rear part of the support base cover (18), a claw (46a) facing in the left-right direction that can be engaged from behind in an engagement hole (28b) provided in the rear standing piece (28a) of the bracket (28) An elastically bendable locking piece (46) having a protrusion protrudes downward. In addition, on the both sides of the lower surface of the rear portion of the support base cover (18), a pair of left and right guide protrusions (47) and (47) having an inverted trapezoidal shape are provided with locking pieces (47) between them. 46) is projected downwards. The guide protrusions (47) and (47) are wedged while sliding between the front and rear standing pieces (28a) and (28a) of the bracket (28) when the support cover (18) is lowered. It serves to position (46) relative to the support base (17).
支基カバー(18)の前部下面中央には、押え金具(36)における左右の起立片(41)(41)に設けられた係合孔(42)に外側からそれぞれ係合する、前後方向を向く爪(48a)(48a)を有する弾性撓曲可能な左右１対の係止片(48)(48)が下向き突設されている。
また、支基カバー(18)の前部下面両側部には、支基カバー(18)を支基ベース(17)に装着したとき、下端が押え金具(36)における水平片(36a)の上面に当接するようにした突片(49)(49)が下向き突設されている。
At the center of the lower surface of the front part of the support cover (18), it engages with the engagement holes (42) provided on the left and right standing pieces (41) (41) of the presser fitting (36) from the outside, respectively A pair of left and right locking pieces (48) and (48) that can be bent elastically have claws (48a) and (48a) facing toward the bottom.
In addition, on both sides of the lower surface of the front part of the support base cover (18), when the support base cover (18) is attached to the support base (17), the lower end is the upper surface of the horizontal piece (36a) of the presser fitting (36). Projection pieces (49) and (49) are provided so as to project downward.
さらに、支基カバー(18)の前端部下面中央には、支基カバー(18)を支基ベース(17)に装着したとき、下端および後端が押え金具(36)における前部の取付片(36c)の上面とその後端から立ち上がる前部の側片(36b)の前面とに当接するようにしたリブ状の突片(50)が下向き突設されている。 Further, in the center of the lower surface of the front end of the support base cover (18), when the support base cover (18) is mounted on the support base (17), the lower end and the rear end are the front mounting pieces of the presser fitting (36). A rib-like projecting piece (50) projecting downward is provided so as to contact the upper surface of (36c) and the front surface of the front side piece (36b) rising from the rear end thereof.
かくして、支基カバー(18)の拡幅段部(43)を支基ベース(17)の上端開口部に外嵌すると、支基カバー(18)側の左右１対の案内突片(47)(47)がブラケット(28)における前後の起立片(28a)(28a)間に、最初は緩く、最後はきつく楔入し、後部の係止片(46)が前後方向に位置決めされつつ、その爪(46a)が後部の起立片(28a)の係合孔(28b)に確実に係合するとともに、前部の左右１対の係止片(48)(48)の爪(48a)(48a)が、前部の押え金具(36)における左右の起立片(41)(41)に設けられた係合孔(42)に外側からそれぞれ係合し、さらに、左右１対の突片(49)(49)の下端が押え金具(36)における水平片(36a)の上面に当接するとともに、突片(50)の下端および後端が前部の押え金具(36)における前部の取付片(36c)の上面と前部の側片(36b)の前面とにそれぞれ当接して、支基カバー(18)は支基ベース(17)に、ワンタッチで確実に装着され、装着後には、支基カバー(18)のがたつきや外れは確実に防止される。 Thus, when the widened step portion (43) of the support base cover (18) is externally fitted to the upper end opening of the support base (17), a pair of left and right guide protrusions (47) ( 47) between the front and rear standing pieces (28a) and (28a) of the bracket (28), loose at the beginning and tightly wedged at the end, while the rear locking piece (46) is positioned in the front and rear direction, (46a) securely engages with the engagement hole (28b) of the rear standing piece (28a), and the claw (48a) (48a) of the pair of left and right locking pieces (48) (48) Engage the engagement holes (42) provided in the left and right standing pieces (41) and (41) in the front presser fitting (36) from the outside, respectively, and further, a pair of left and right protrusions (49) The lower end of (49) abuts the upper surface of the horizontal piece (36a) of the presser fitting (36), and the lower end and rear end of the projecting piece (50) are the front mounting pieces ( 36) of the front presser fitting (36) ( respectively to the front of the upper surface and the front side piece 36c) (36b) in contact with, the support base cover (18) is supporting base base (17) , It is securely mounted at one touch, after mounting, rattle and out of the support base cover (18) is reliably prevented.
特に、後部の係止片(46)の爪(46a)と、前部の係止片(48)(48)の爪(48a)(48a)とが互いに直交する方向を向いているので、支基カバー(18)の水平面内のあらゆる方向へのがたつきや外れが確実に防止される。 In particular, the claw (46a) of the rear locking piece (46) and the claw (48a) (48a) of the front locking piece (48) (48) are oriented in a direction perpendicular to each other. The base cover (18) is reliably prevented from rattling or coming off in any direction within the horizontal plane.
本発明は、支基(３)における支基カバー(18)の取付構造を上述のような構成としたことを特徴とするものであり、特許請求の範囲の各請求項に記載した各構成により、発明の効果として上述したような効果を奏することができる。 The present invention is characterized in that the mounting structure of the support base cover (18) in the support base (3) is configured as described above, and according to each configuration described in the claims. As described above, the effects as described above can be achieved.
(１)脚
(２)脚柱
(３)支基
(４)背もたれ
(５)背杆
(６)軸
(８)ガススプリング(付勢手段)
(8a)(8b)軸
(９)座
(10)座フレーム
(11)支持軸
(12)長孔
(13)支持軸
(14)連結金具
(15)ばね
(16)調節手段
(17)支基ベース
(17a)貫通孔
(17b)側片
(17c)後片
(18)支基カバー
(19)上面板
(19a)突部
(19b)側片
(19c)起立壁
(19d)前片
(20)嵌合孔
(21)筒体
(21a)拡径フランジ
(22)補強材
(23)嵌合孔
(25)切り欠き
(26)軸受孔
(27)押え金具
(28)ブラケット
(28a)起立片
(28b)係合孔
(29)空所
(30)軸受
(31)切り欠き
(33)ばね受け板
(34)切り欠き
(35)軸受
(36)押え金具
(36a)水平片
(36b)側片
(36c)取付片
(37)受け金具
(38)ねじ
(39)切り欠き
(40)ばね受け
(41)起立片
(42)係合孔
(43)拡幅段部
(44)(45)切り欠き
(46)係止片
(46a)爪
(47)案内突片
(48)係止片
(48a)爪
(49)(50)突片
(1) Leg
(2) Pillar
(3) Support base
(4) Backrest
(5) dorsal fin
(6) Axis
(8) Gas spring (biasing means)
(8a) (8b) shaft
(9) Seat
(10) Seat frame
(11) Support shaft
(12) Long hole
(13) Support shaft
(14) Connecting bracket
(15) Spring
(16) Adjustment means
(17) Support base
(17a) Through hole
(17b) Side piece
(17c) Rear piece
(18) Support cover
(19) Top plate
(19a) Projection
(19b) Side piece
(19c) Standing wall
(19d) Front piece
(20) Mating hole
(21) Tube
(21a) Expanded flange
(22) Reinforcing material
(23) Mating hole
(25) Notch
(26) Bearing hole
(27) Presser bracket
(28) Bracket
(28a) Standing piece
(28b) Engagement hole
(29) Empty space
(30) Bearing
(31) Notch
(33) Spring backing plate
(34) Notch
(35) Bearing
(36) Presser bracket
(36a) Horizontal piece
(36b) Side piece
(36c) Mounting piece
(37) Bracket
(38) Screw
(39) Notch
(40) Spring support
(41) Standing piece
(42) Engagement hole
(43) Widening step
(44) (45) Notch
(46) Locking piece
(46a) Nail
(47) Guide protrusion
(48) Locking piece
(48a) Nail
(49) (50) Projection
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004035476A JP4387823B2 (en) | 2004-02-12 | 2004-02-12 | Mounting structure of support base cover in chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004035476A JP4387823B2 (en) | 2004-02-12 | 2004-02-12 | Mounting structure of support base cover in chair |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2005224378A JP2005224378A (en) | 2005-08-25 |
| JP4387823B2 true JP4387823B2 (en) | 2009-12-24 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004035476A Expired - Fee Related JP4387823B2 (en) | 2004-02-12 | 2004-02-12 | Mounting structure of support base cover in chair |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4387823B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5597044B2 (en) * | 2010-06-30 | 2014-10-01 | タカノ株式会社 | Chair |
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2004
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2005224378A (en) | 2005-08-25 |
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