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US 7,607,454 B2Granted
Vacuum and vacuum-breaking composite valve
AssigneeSMC Corporation
InventorsShinji Miyazoe, Takumi Matsumoto
Life of this patent
Estimating the term…
Abstract
A composite valve includes a main valve unit that individually opens and closes a vacuum channel for applying vacuum pressure to a load and a pressure channel for supplying vacuum-breaking pressure fluid with two valves for vacuuming and pressurizing; a channel combining section that connects the vacuum channel and the pressure channel to the load via a combining port; and a pilot valve unit that opens and closes the valve members individually with two pilot valves. The main valve unit, the channel combining section, and the pilot valve unit have the same width, and connect to one another in line along the axis of the valve.
Claims10
A composite valve, comprising:
- a main valve unit including
- a vacuum port connected to a vacuum feeder,
- a pressure port connected to a pressure fluid feeder,
- a vacuum-side valve member that opens and closes a vacuum channel connecting the vacuum port with a combining port, and
- a pressure-side valve member that opens and closes a pressure channel connecting the pressure port with the combining port;
- a channel combining section including
- the combining port for connecting with a load,
- filter chambers respectively interposed in the vacuum channel and the pressure channel, and
- a filter detachably disposed in each of the filter chambers;
- and
- a pilot valve unit including two pilot valves that individually operate the vacuum-side valve member and the pressure-side valve member of the main valve unit,
- wherein the main valve unit, the channel combining section, and the pilot valve unit have a same width, the channel combining section connects to one end side of the main valve unit in a direction of an axis of the main valve unit, and the pilot valve unit connects to an other end side, so that the main valve unit, the channel combining section, and the pilot valve unit connect to one another in a line along the axis,
- wherein the combining port is provided at a front end face of the channel combining section, the filter chambers are provided along the axis in opposite positions of the combining port in the channel combining section, and the filter is detachably mounted in each of the filter chambers with a detachable filter holder from the front end face via the detachable filter holder, and
- wherein the filter is cylindrical in shape, the filter holder is columnar in shape, a channel hole that constitutes part of the vacuum channel and the pressure channel is formed in an interior of the filter holder, one end of the channel hole communicating with the combining port through a hole in a side surface of the filter holder, and the filter is mounted around an outer periphery of the filter holder so as to cover the hole.
11 more elements
A composite valve, comprising:
- a main valve unit including
- a vacuum port connected to a vacuum feeder,
- a pressure port connected to a pressure fluid feeder,
- a vacuum-side valve member that opens and closes a vacuum channel connecting the vacuum port with a combining port, and
- a pressure-side valve member that opens and closes a pressure channel connecting the pressure port with the combining port;
- a channel combining section including
- the combining port for connecting with a load,
- filter chambers respectively interposed in the vacuum channel and the pressure channel, and
- a filter detachably disposed in each of the filter chambers;
- and
- a pilot valve unit including two pilot valves that individually operate the vacuum-side valve member and the pressure-side valve member of the main valve unit,
- wherein the main valve unit, the channel combining section, and the pilot valve unit have a same width, the channel combining section connects to one end side of the main valve unit in a direction of an axis of the main valve unit, and the pilot valve unit connects to an other end side, so that the main valve unit, the channel combining section, and the pilot valve unit connect to one another in line along the axis,
- wherein a throttle valve is mounted on an upper surface of the main valve unit, the throttle valve controlling a flow rate of pressure fluid flowing in the pressure channel, and
- wherein the combining port is provided at a front end face of the channel combining section, the filter chambers are provided along the axis in opposite positions of the combining port in the channel combining section, and the filter is detachably mounted in each of the filter chambers with a detachable filter holder from the front end face via the detachable filter holder.
11 more elements
Dependencies are inferred from the claim text.