JPS61166244U

JPS61166244U -

Info

Publication number: JPS61166244U
Application number: JP5037885U
Authority: JP
Priority date: 1985-04-04
Filing date: 1985-04-04
Publication date: 1986-10-15

Description

[Brief explanation of drawings]

第１図は本考案の一実施例に係るシヨツクアブ
ソーバを部分的に破断して示す縦断面図、第２図
は本考案の要部を拡大して示す部分拡大縦断面図
、第３図は圧側減衰力のピストン速度に対する特
性を示す図、第４図は従来のシヨツクアブソーバ
を部分的に破断して示す縦断面図である。１２……アウターチユーブ、１４……ピストン
部、１５……インナーチユーブ、１６……懸架ば
ね、１７……伸側バルブ、１９……スラストベア
リング、２０……圧側バルブ、Ａ……上方室、Ｂ
……下方室、Ｃ……リザーバ室、Ｄ……空気室。 FIG. 1 is a partially cutaway vertical cross-sectional view of a shock absorber according to an embodiment of the present invention, FIG. 2 is a partially enlarged vertical cross-sectional view showing essential parts of the present invention, and FIG. FIG. 4, which is a diagram showing the characteristics of the compression side damping force with respect to the piston speed, is a partially cut away vertical sectional view of a conventional shock absorber. 12... Outer tube, 14... Piston part, 15... Inner tube, 16... Suspension spring, 17... Extension side valve, 19... Thrust bearing, 20... Compression side valve, A... Upper chamber, B
...Lower chamber, C...Reservoir chamber, D...Air chamber.

補正昭６１．７．３実用新案登録請求の範囲を次のように補正する
。Amendment July 3, 1986 The scope of claims for utility model registration is amended as follows.

【実用新案登録請求の範囲】 (1) アウターチユーブの下端が車軸側に連結さ
れると共に、当該アウターチユーブ内で摺動する
ピストン部を下端に固着し内部をリザーバ室とす
るインナーチユーブの上端が車体側に連結され、
上端側インナーチユーブと下端側アウターチユー
ブとの間に懸架ばねが配設されて舵切り回転自在
に形成されたストラツト型のシヨツクアブソーバ
において、ピストン部がアウターチユーブ内を上
昇する伸側行程時にはピストン部に形成された伸
側バルブによる減衰力発生を可とし、ピストン部
がアウターチユーブ内を下降する圧側行程時には
インナーチユーブ内リザーバ室に形成された圧側
バルブによる減衰力発生を可としてなることを特
徴とするシヨツクアブソーバ。 (2) ピストン部に形成された伸側バルブはイン
ナーチユーブの下端近傍外周に摺動自在に介装さ
れた環状体からなると共に、当該環状体内周とイ
ンナーチユーブ外周との間に環状隙間を有するよ
うに形成されてなる実用新案登録請求の範囲第１
項記載のシヨツクアブソーバ。 (3) インナーチユーブ内リザーバ室に形成され
た圧側バルブは当該リザーバ室を上方の空気室側
と下方の下方室側とに区画するように配設された
バルブデイスク上面に隣接された環状のリーフバ
ルブを有してなると共に、当該環状リーフバルブ
の内周端が上記バルブデイスクの中央部を貫通す
るピンの上端に係止されたスプリングによつて附
勢されてなる実用新案登録請求の範囲第１項記載
のシヨツクアブソーバ。[Claims for Utility Model Registration] (1) The lower end of the outer tube is connected to the axle side, and the upper end of the inner tube has a piston part that slides within the outer tube fixed to the lower end and has a reservoir chamber inside. Connected to the vehicle body side,
In a strut-type shock absorber in which a suspension spring is disposed between an inner tube at the upper end and an outer tube at the lower end and is formed to be rotatable for steering , the piston section moves upward during the extension stroke in which the piston section ascends within the outer tube. A damping force can be generated by an extension valve formed in the inner tube, and a damping force can be generated by a compression valve formed in a reservoir chamber in the inner tube during the compression stroke when the piston moves downward in the outer tube. Shock absorber. (2) The extension valve formed in the piston part is composed of an annular body slidably interposed on the outer periphery of the inner tube near the lower end, and an annular gap is formed between the periphery of the annular body and the outer periphery of the inner tube. The scope of claim 1 for utility model registration, which is formed to have
Shock absorber as described in section. (3) The pressure side valve formed in the reservoir chamber in the inner tube is an annular leaf adjacent to the upper surface of the valve disk arranged to divide the reservoir chamber into an upper air chamber side and a lower lower chamber side. It has a valve, and the inner circumferential end of the annular leaf valve passes through the center of the valve disc.
The shock absorber according to claim 1, which is biased by a spring secured to the upper end of a pin .

Claims

[Claims for Utility Model Registration] (1) The lower end of the outer tube is connected to the axle side, and the upper end of the inner tube has a piston part that slides within the outer tube fixed to the lower end and has a reservoir chamber inside. Connected to the vehicle body side,
In a strut-type shock absorber in which a suspension spring is disposed between an inner tube on the upper end side and an outer tube on the lower end side, during the extension stroke in which the piston portion rises within the outer tube, an expansion side valve formed in the piston portion is used. 1. A shock absorber characterized in that a damping force can be generated by a pressure side valve formed in a reservoir chamber in an inner tube during a compression side stroke in which a piston part moves downward in an outer tube. (2) The extension valve formed in the piston part is composed of an annular body slidably interposed on the outer periphery of the inner tube near the lower end, and has an annular gap between the periphery of the annular body and the outer periphery of the inner tube. A shock absorber according to claim 1 of the claimed utility model registration, which is formed as follows. (3) The pressure side valve formed in the reservoir chamber in the inner tube is an annular leaf adjacent to the upper surface of the valve disk arranged to divide the reservoir chamber into an upper air chamber side and a lower lower chamber side. The utility model registration claim comprises a valve, and the inner circumferential end of the annular leaf valve is energized by a spring secured to the upper end of a perforated pin passing through the center of the valve disc. The shock absorber according to item 1 of the scope.