Gate valve and substrate processing system using same
First Claim
1. A gate valve comprising:
- a valve body to be pressed against a peripheral surface around opening through which a processing target object is loaded and unloaded;
pressed members arranged on a surface of the valve body;
a main slider which slides in a direction parallel to the peripheral surface around the opening; and
pressing mechanisms, provided at the main slider, for pressing the respective pressed members,wherein each of the pressing mechanisms includes a cam having a protrusion for pressing the valve body against the peripheral surface around the opening and an inclined portion sloping downward from the protrusion;
wherein the pressing mechanisms serve to press the valve body in a direction substantially perpendicular to the peripheral surface around the opening in a state that the valve body is positioned to face the opening, so that the valve body is pressed against the peripheral surface around the opening;
wherein the gate valve further comprises a sub-slider provided between the valve body and the main slider to support the valve body;
wherein the sub-slider is slidable in a direction substantially parallel to the peripheral surface around the opening;
wherein the sub-slider includes a support and guide mechanism for supporting the valve body and defining a pressing direction and a separation direction of the valve body to the direction substantially perpendicular to the peripheral surface around the opening;
wherein the gate valve further comprises a stopper which stops sliding movement of the sub-slider;
wherein after the sliding movement of the sub-slider is stopped by the stopper, the main slider further slides in an identical direction to that of the sliding movement of the sub-slider so that the protrusions of the pressing mechanisms press against the valve body;
wherein guide rails are provided on a surface of the sub-slider facing the main slider, and connection members are provided on a surface of the main slider facing the sub-slider; and
wherein the sub-slider is slidably connected with the main slider via the guide rails and the connection members.
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Accused Products
Abstract
A gate valve includes a valve body to be pressed against a peripheral surface around opening through which a processing target object is loaded and unloaded, pressed members arranged on a surface of the valve body around the opening, a main slider which slides in a direction parallel to the peripheral surface around the opening and pressing mechanisms, provided at the main slider, for pressing the respective pressed members. Each of the pressing mechanisms includes a cam having a protrusion for pressing the valve body against the peripheral surface around the opening and an inclined portion sloping downward from the protrusion. The pressing mechanisms serve to press the valve body in a direction substantially perpendicular to the peripheral surface around the opening in a state that the valve body is positioned to face the opening, so that the valve body is pressed against the peripheral surface around the opening.
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Citations
20 Claims
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1. A gate valve comprising:
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a valve body to be pressed against a peripheral surface around opening through which a processing target object is loaded and unloaded; pressed members arranged on a surface of the valve body; a main slider which slides in a direction parallel to the peripheral surface around the opening; and pressing mechanisms, provided at the main slider, for pressing the respective pressed members, wherein each of the pressing mechanisms includes a cam having a protrusion for pressing the valve body against the peripheral surface around the opening and an inclined portion sloping downward from the protrusion; wherein the pressing mechanisms serve to press the valve body in a direction substantially perpendicular to the peripheral surface around the opening in a state that the valve body is positioned to face the opening, so that the valve body is pressed against the peripheral surface around the opening; wherein the gate valve further comprises a sub-slider provided between the valve body and the main slider to support the valve body; wherein the sub-slider is slidable in a direction substantially parallel to the peripheral surface around the opening; wherein the sub-slider includes a support and guide mechanism for supporting the valve body and defining a pressing direction and a separation direction of the valve body to the direction substantially perpendicular to the peripheral surface around the opening; wherein the gate valve further comprises a stopper which stops sliding movement of the sub-slider; wherein after the sliding movement of the sub-slider is stopped by the stopper, the main slider further slides in an identical direction to that of the sliding movement of the sub-slider so that the protrusions of the pressing mechanisms press against the valve body; wherein guide rails are provided on a surface of the sub-slider facing the main slider, and connection members are provided on a surface of the main slider facing the sub-slider; and wherein the sub-slider is slidably connected with the main slider via the guide rails and the connection members. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification