Smc Corporation

Smc Corportion

Shinji Miyazoe

Katsuyuki Senba

Takashi Murakami

Shinichi Yoshimura

Makoto Ishikawa

Bunya Hayashi

Kazuhiro Noguchi

Ryushiro Kaneko

Yoichi Kawamura

Tatsuya Nishiyama

Koichi Mochizuki

Masaru Yoshida

Masaharu Takahashi

Hideharu Sato

Masaru Narita

Yoichi Morodomi

Takumi Matsumoto

Masamichi Tajima

Hiroyuki Katsuta

Koji Matsuda

Masahiko Kawakami

Masayuki Kudo

Kazuhiro Umeda

Naoyuki Maeda

Fumio Morikawa

Nobuyuki Ishitsuka

Toru Fujiwara

Junichi Itagaki

A sealing structure is configured in the following manner. When a packing having a pair of sealing portions formed at opposite edge portions of the outer peripheral surface thereof is installed in a land portion of a spool, the outside diameter of the packing is made smaller than the diameter of a slide surface of a spool hole. In a state in which the outer periphery of the land portion opposes the slide surface and a pressurized fluid is supplied from a gas supply channel to the first space of first and second spaces that are partitioned by the land portion, the edge portion of the packing positioned near the first space is elastically elongated in a radial direction due to pressure of the pressurized fluid and thereby narrows a gap formed between the first sealing portion and the slide surface of the spool hole or abuts the slide surface.

Seal structure for spool-type switching valve, and said spool-type switching valve

In a spool-type switching valve in which a recessed groove in which a packing is mounted is provided at a land portion of a spool, a groove bottom of the recessed groove is formed of an inclined surface that has an axial length half or larger than the length of the groove bottom in the direction of an axis and that continuously decreases in diameter from an upstream end to a downstream end, the inner periphery of the packing is brought into pressure-contact with the groove bottom with stress concentration at a pressure contact point that defines an upstream end of the inclined surface, and an angle θ that a connection surface connecting the pressure contact point on the groove bottom and the upstream end forms with the axis is within the range of 0°≤θ≤α, where α is an angle that the inclined surface forms with the axis.

Spool-type switching valve

A manifold includes multiple first valve mount portions, on each of which three electromagnetic valves are arranged side by side, or a plurality of second valve mount portions, on each of which two electromagnetic valves are arranged side by side, or includes at least one of the first valve mount portions and at least one of the second valve mount portions. Waterproof covers are attached to the valve mount portions of the manifold to each cover the three or two electromagnetic valves mounted on the valve mount portion. Thus, a waterproof manifold electromagnetic valve is formed.

Waterproof manifold electromagnetic valve

A manifold block is provided with attachment grooves for attaching silencer members and a plurality of individual exhaust paths that are branched from the attachment grooves and open on fixing regions of a valve mounting surface. Openings along the axes of the attachment grooves are formed as exhaust ports in lightening grooves on the bottom surface of the manifold block. The silencer members are held in the attachment grooves. The individual exhaust paths communicate with the exhaust ports through the silencer members.

Manifold assembly for electromagnetic valve and electromagnetic valve cluster using same

Manifold type electromagnetic valve

Main channels are provided in a base body so as to pass through the base body in a direction of arranging valve mounting regions in a row. In addition, communicating openings are also provided in the base body so as to allow the main channels to communicate with a valve mounting surface that is the top surface of the base body. The communicating openings open at the valve mounting surface so as to cross the valve mounting regions, and silencers is installed in respective communicating openings so as to extend in the longitudinal direction of the communicating openings.

Manifold base for electromagnetic valve and manifold-type electromagnetic valve

An integrated multiple valve manifold that is reduced in size and weight by integrally incorporating a plurality of valve mechanisms in one manifold. The one manifold, which is formed of an extruded material through which a fluid supply hole and fluid discharge holes extend, includes a plurality of valve holes each of which communicates with the fluid supply hole and the fluid discharge holes by directly intersecting both of the fluid supply hole and the fluid discharge holes, output ports that are formed so as to individually communicate with the valve holes, spools that are slidably inserted into the valve holes, and electromagnetic pilot valves that are individually attached to one ends or both ends of the valve holes.

Integrated multiple valve manifold

First and second insertion holes and first and second recessed grooves are formed such that, on a plane that is perpendicular to a first side surface and a second side surface and that includes an axis of a spool-sliding hole, the shortest distance from the axis of the spool-sliding hole to a hole wall surface of the first insertion hole, the shortest distance from the axis of the spool-sliding hole to a hole wall surface of the second insertion hole, the distance from the axis of the spool-sliding hole to a bottom wall surface of the first recessed groove, and the distance from the axis of the spool-sliding hole to a bottom wall surface of the second recessed groove are equal to one another.

Solenoid valve and manifold-type solenoid valve assembly

The cross-sectional shape of a valve hole is an elongated shape having a long axis and a short axis, and has left and right hole side walls that are parallel to each other, a first hole end wall that connects one ends of the left and right hole side walls, and a second hole end wall that connects the other ends of the left and right hole side walls, and the cross-sectional shape of land portions of a spool is an elongated shape having a long axis and a short axis, and has left and right land side walls that are parallel to each other, a first land end wall that connects one ends of the left and right land side walls, and a second land end wall that connects the other ends of the left and right land side walls.

Spool valve

Manifold type solenoid valve

[Object] To provide a compact, rationally designed, dual 4-port electromagnetic valve that is an electromagnetic valve having functions of two 4-port valves. [Solution] A dual 4-port electromagnetic valve includes two spools () slidable independently of each other in a valve hole (); two pilot valves () that drive the two spools, respectively; a main supply port (P) that communicates with the valve hole () at a position where the two spools face each other; first and second output ports (A, A) that communicate with the valve hole () on two respective sides of the main supply port (P), first and second discharge ports (E, E) that communicate with the valve hole () on two respective outer sides of the output ports (A, A), third and fourth output ports (B, B) that communicate with the valve hole () on two respective outer sides of the discharge ports (E, E), and first and second supply ports (P, P) that communicate with the valve hole () on two respective outer sides of the output ports (B, B). The main supply port (P) and each of the first and second supply ports (P, P) communicate with each other.

Dual 4-port electromagnetic valve

Manifold base for electromagnetic valve

Growing community of inventors

Tsukubamirai, Japan

Shinji Miyazoe