JPH037516U

JPH037516U -

Info

Publication number: JPH037516U
Application number: JP6870089U
Authority: JP
Priority date: 1989-06-13
Filing date: 1989-06-13
Publication date: 1991-01-24

Description

[Brief explanation of drawings]

第１図は本考案の一実施例である切換弁を示す
断面図、第２図は本実施例の切換弁に用いられる
嵌合構造を示す断面図、第３図は本実施例の切換
弁に用いられる他の嵌合構造を示す断面図である
。１……主弁本体部、２……パイロツト弁本体部
、３……ソレノイド部、３ａ……ソレノイド部本
体（被嵌合部材）、４ａ……入力ポート、４ｂ…
…第１排出ポート、４ｃ……第２排出ポート、４
ｄ……第１出力ポート、４ｅ……第２出力ポート
、５……軸孔、５ａ……弁座、６……主軸、６ａ
……大径部、７……ピストン、８……ピストン、
９……エンドカバー、１０……作動流体室、１０
ａ……パイロツト流通路、１１……作動流体室、
１１ａ……流通路、１１ｂ……流通路、１２……
フラツパ、１２ａ……スプリング、１３……スプ
リングガイド、１４……パイロツト室、１４ａ…
…流通路、１４ｂ……パイロツト流通路、１５…
…プランジヤ、１５ａ……パイロツト弁体、１５
ｂ……プランジヤスプリング、１６……プランジ
ヤピン、１７……ソレノイドカバー、１８……フ
レーム、１９……ボビン、２０……ソレノイドコ
イル、２１……中心孔、２２……固定コア、２３
……ボルト（嵌合部材、締結手段）、２３ａ……
ワツシヤ（補助部材、締結手段）、２４……鋼球
（嵌合部材、シール手段）。 Fig. 1 is a sectional view showing a switching valve that is an embodiment of the present invention, Fig. 2 is a sectional view showing a fitting structure used in the switching valve of this embodiment, and Fig. 3 is a sectional view of the switching valve of this embodiment. FIG. 3 is a cross-sectional view showing another fitting structure used for DESCRIPTION OF SYMBOLS 1...Main valve body part, 2...Pilot valve main body part, 3...Solenoid part, 3a...Solenoid part main body (fitted member), 4a...Input port, 4b...
...First discharge port, 4c...Second discharge port, 4
d...First output port, 4e...Second output port, 5...Shaft hole, 5a...Valve seat, 6...Main shaft, 6a
...Large diameter part, 7...Piston, 8...Piston,
9... End cover, 10... Working fluid chamber, 10
a... Pilot flow passage, 11... Working fluid chamber,
11a... Distribution path, 11b... Distribution path, 12...
Flat pad, 12a...Spring, 13...Spring guide, 14...Pilot chamber, 14a...
...Flow path, 14b...Pilot flow path, 15...
...Plunger, 15a...Pilot valve body, 15
b... Plunger spring, 16... Plunger pin, 17... Solenoid cover, 18... Frame, 19... Bobbin, 20... Solenoid coil, 21... Center hole, 22... Fixed core, 23
...Bolt (fitting member, fastening means), 23a...
Washer (auxiliary member, fastening means), 24... Steel ball (fitting member, sealing means).

Claims

[Claims for Utility Model Registration] 1. A fitting structure comprising a fitting member and a fitted member to which the fitting member is fitted via an auxiliary member, wherein the fitting member, the auxiliary member and A fitting structure using a shape memory alloy, characterized in that at least one member of the fitted member is formed of a unidirectional shape memory alloy. 2. The fitting member is formed of a shape memory alloy whose outer shape shrinks when heated or cooled, and the outer shape of the fitting member firmly fits into the inner shape of the fitted member at room temperature. 2. A fitting structure using a shape memory alloy according to claim 1. 3. The member to be fitted is formed of a shape memory alloy whose inner shape expands when heated or cooled, and the inner shape of the member to be fitted firmly matches the outer shape of the member to be fitted at room temperature. The fitting structure using the shape memory alloy according to claim 1, wherein the fitting structure is fitted. 4. The auxiliary member is formed of a shape memory alloy that shrinks in the thickness direction when heated or cooled, and the auxiliary member is firmly held between the fitting member and the fitted member at room temperature. The fitting structure using a shape memory alloy according to claim 1, wherein the fitting structure is fitted with a shape memory alloy. 5. The fitting using a shape memory alloy according to claim 1, 2, 3, or 4, wherein the fitting member, the auxiliary member, and the fitted member are formed of a titanium-nickel shape memory alloy. Combined structure. 6. A fluid pressure device comprising a fastening means and a sealing means, wherein the fastening means and the sealing means are formed by the fitting structure according to claim 1, 2, 3, 4 or 5. Fluid pressure equipment using structure.