JPH03123740U

JPH03123740U -

Info

Publication number: JPH03123740U
Application number: JP3393590U
Authority: JP
Priority date: 1990-03-30
Filing date: 1990-03-30
Publication date: 1991-12-16
Anticipated expiration: 2005-03-30
Also published as: JP2505267Y2

Description

[Brief explanation of the drawing]

第１図は、この考案に係る車両用シートのエア
ーサスペンシヨンの概略斜視図、第２図は、第１
図の線−に沿つたエアーサスペンシヨンの概
略断面図、第３図は、シートのニユートラル位置
での切換手段、切換制御弁の関係を示す、エアー
サスペンシヨンの部分正面図、第４図Ａは、シー
トがニユートラル位置にある場合での空気供給源
、空気ばね間の接続図、第４図Ｂは、給気時での
空気供給源、空気ばね間の接続図、第４図Ｃは、
排気時での空気供給源、空気ばね間の接続図、第
４図Ｄは、急速排気時（降車時）での空気供給源
、空気ばね間の接続図、第５図は、空気供給源、
空気ばね間の接続を概略的に示す模式図である。１０……車両用シートのエアーサスペンシヨン
、１１……シート、１２，１４……上枠、下枠、
１６，１８……リンク、２０，２１……リンクの
枢支ピン、３４……空気ばね、３６，３８……ブ
ラケツト、４０……切換制御弁、４０ａ……制御
弁本体、４２，４４，４６……切換制御弁の流入
口（ＩＮ）、流出口（ＯＵＴ）、排出口（ＥＴＨ
）、５０，５２……切換制御弁の供給ピン、排気
ピン、５４……切換手段（カム）、５６，５７…
…カム面、６０……操作ピン、６２……挿通孔、
６５……アジヤストスクリユー、６６……シヨツ
クアブゾーバー、６８，７０……ブラケツト、７
２……手動制御弁、７２ａ……切換スイツチ、７
４……空気供給源（コンプレツサー）、７６，７
８，８８……導管、８２，８４，８６……手動制
御弁の流入口（ＩＮ）、流入口（ＯＵＴ）、排出
口（ＥＴＨ）。 FIG. 1 is a schematic perspective view of the air suspension for a vehicle seat according to this invention, and FIG.
3 is a schematic cross-sectional view of the air suspension taken along the line - in the figure; FIG. 3 is a partial front view of the air suspension showing the relationship between the switching means and the switching control valve when the seat is in the neutral position; FIG. , FIG. 4B is a connection diagram between the air supply source and air spring when the seat is in the neutral position, FIG. 4B is a connection diagram between the air supply source and the air spring when air is supplied, and FIG. 4C is,
Figure 4D is a connection diagram between the air supply source and air spring during exhaust exhaust, Figure 4D is a connection diagram between the air supply source and air spring during rapid exhaust (when getting off the vehicle), Figure 5 is the connection diagram between the air supply source and the air spring.
FIG. 3 is a schematic diagram schematically showing connections between air springs. 10... Air suspension for vehicle seat, 11... Seat, 12, 14... Upper frame, lower frame,
16, 18... Link, 20, 21... Link pivot pin, 34... Air spring, 36, 38... Bracket, 40... Switching control valve, 40a... Control valve body, 42, 44, 46 ...The inlet (IN), outlet (OUT), and outlet (ETH) of the switching control valve
), 50, 52...Switching control valve supply pin, exhaust pin, 54...Switching means (cam), 56, 57...
...cam surface, 60 ... operation pin, 62 ... insertion hole,
65...adjustable screw, 66...shock absorber, 68,70...bracket, 7
2... Manual control valve, 72a... Changeover switch, 7
4...Air supply source (compressor), 76,7
8, 88... Conduit, 82, 84, 86... Manual control valve inlet (IN), inlet (OUT), outlet (ETH).

Claims

[Scope of Claim for Utility Model Registration] (1) An upper frame on which vehicle seats are stacked is supported by a lower frame via a telescopic link, an air spring is provided between the upper frame and the lower frame, and a switching control valve is installed. Compressed air is supplied and exhausted from the air supply source to the air spring by placing it between the air supply source and the air spring, and switching the switching control valve by expanding and contracting the link, to accommodate the weight of the seated person. In an air suspension for a vehicle seat that maintains a suspension force of 100%, an air supply source is connected to an inlet of a switching control valve, and an air spring is connected to an outlet of the switching control valve via a manual control valve. Air suspension for vehicle seats. (2) The air suspension for a vehicle seat according to claim 1, wherein the manual control valve is a self-holding valve with three ports and two positions.