JPS64741U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図はこの考案の実施例の液封型弾性ブツシ
ユの横断面図、第２図は同じく縦断面図、第３図
は同じく側面図、第４図は他の実施例の液封型弾
性ブツシユの横断面図（右半分はストツパー部位
を外した場合を示す）、第５図は同じく縦断面図
（第６図の―方向断面図に相当）、第６図は
同じく側面図、第７図〜第９図は可動弁のそれぞ
れを示す断面図、第１０図は可動弁の平面図であ
る。 （符号）、１…内筒、２…外筒、３…ゴム弾性
体、４…液、５…液室、６…側壁、７…隔壁、９
…連通構造、１０…連通孔、１１…可動弁、１２
…オリフイス、１４…ストツパー。 Fig. 1 is a cross-sectional view of a liquid-sealed elastic bushing according to an embodiment of this invention, Fig. 2 is a longitudinal sectional view, Fig. 3 is a side view, and Fig. 4 is a liquid-sealed elastic bushing of another embodiment. A cross-sectional view of the bushing (the right half shows the case where the stopper part is removed), Fig. 5 is a longitudinal cross-sectional view (corresponding to the - direction cross-sectional view of Fig. 6), Fig. 6 is a side view, and Fig. 7 is a side view of the bushing. 9 to 9 are sectional views showing each of the movable valves, and FIG. 10 is a plan view of the movable valve. (Symbol), 1...Inner cylinder, 2...Outer cylinder, 3...Rubber elastic body, 4...Liquid, 5...Liquid chamber, 6...Side wall, 7...Partition wall, 9
...Communication structure, 10...Communication hole, 11...Movable valve, 12
...Orifice, 14...Stopper.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 内筒１と外筒２間にモールドされるゴム弾性体
３の中に側壁６と隔壁７とで連通構造９によつて
連通される液４封液室５を隔設した液封型弾性ブ
ツシユにおいて、前記隔壁７に前記両液室５を連
通する連通孔１０を形成し、この連通孔１０中に
、前記液４の前記液室５間の移動を微少振動時許
容し、比較的大振動時規制するよう作動する断面
工形の可動弁１１を設置する他、この可動弁１１
に前記両液室５を常時連絡するオリフイス１２を
設け、このオリフイス１２と前記連通孔１０とで
前記連通構造９を構成するとともに、前記内筒１
の過大変位を前記外筒２に接当させて規制するス
トツパー１４を、前記液室５中振動方向に前記内
筒１から前記外筒２側に向けて前記内筒１の径と
ほぼ同じ幅か小さい幅で延出させたことを特徴と
する液封型弾性ブツシユ。 A liquid-sealing type elastic bushing in which a liquid-sealing liquid chamber 5 is separated into a rubber elastic body 3 molded between an inner cylinder 1 and an outer cylinder 2, and a liquid-sealing liquid chamber 5 is communicated with a side wall 6 and a partition wall 7 by a communication structure 9. A communication hole 10 is formed in the partition wall 7 to communicate the liquid chambers 5, and the communication hole 10 allows the liquid 4 to move between the liquid chambers 5 during minute vibrations, and relatively large vibrations are allowed to occur in the communication hole 10. In addition to installing a movable valve 11 with a cross-sectional shape that operates to regulate the time, this movable valve 11
is provided with an orifice 12 that constantly communicates the two liquid chambers 5, and the orifice 12 and the communication hole 10 constitute the communication structure 9, and the inner cylinder 1
A stopper 14 that contacts the outer cylinder 2 to restrict excessive displacement is moved from the inner cylinder 1 to the outer cylinder 2 side in the vibration direction in the liquid chamber 5 so as to have approximately the same diameter as the inner cylinder 1. A liquid-sealed elastic bushing characterized by extending in a narrow width.