Clamp

A clamp, comprising:

• a fixed portion comprising:
• a pair of sidewalls that protrude from the fixed portion in a first direction to an upper surface of the pair of sidewalls;
• and
• a contact surface arranged in a space between the pair of sidewalls and disposed below the upper surface of the pair of sidewalls;
• a movable portion that faces the fixed portion and disposed above the fixed portion, wherein the movable portion moves between an open state and a closed state relative to the fixed portion;
• a curved portion that curves from a first end of the fixed portion to a first end of the movable portion, the curved portion supporting the movable portion such that the movable portion is displaceable in the first direction and a second direction opposite the first direction with elastic deformation;
• a pressing portion interconnected with the movable portion, wherein the pressing portion extends from the movable portion in a direction toward the fixed portion, the pressing portion configured to press and close a tube disposed on the contact surface when the movable portion is in the closed state, wherein the pressing portion comprises:
• a first protrusion portion interconnected to the movable portion that extends toward the fixed portion a first distance from a point adjacent the first end of the movable portion to a bar portion of the pressing portion;
• and
• a second protrusion portion interconnected to the movable portion that extends toward the fixed portion a second from a point adjacent a tip portion of the movable portion to the bar portion of the pressing portion, wherein the bar portion of the pressing portion is arranged adjacent and offset from the contact surface in the open state and in the closed state;
• wherein the pressing portion slots in between the pair of sidewalls when the movable portion is in the closed state;
• and
• a guide protrusion extending from the tip portion in a direction away from the first end of the movable portion, wherein the guide protrusion comprises an upper surface arranged coplanar with an upper surface of the movable portion;
• a standing portion that extends upward from a second end of the fixed portion, faces the curved portion, and comprises:
• an inclined portion arranged at an angle extending obliquely downward toward the first end of the fixed portion;
• a hanging portion extending from a lower end of the inclined portion downward toward the fixed portion;
• a guide groove extending into the inclined portion, the guide groove comprising a tapered portion and a linear portion interconnected to the tapered portion, wherein the linear portion is arranged at the angle, wherein the guide groove is configured to receive the guide protrusion in the tapered portion and then receive the guide protrusion in the linear portion as the movable portion moves from the open state to the closed state, and wherein the guide groove prevents lateral displacement of the movable portion relative to the fixed portion as the movable portion moves from the open state to the closed state;
• and
• a lock mechanism configured to maintain the movable portion in the closed state when the tip portion of the movable portion is moved downward past the hanging portion.

A clamp, comprising:

• a fixed portion comprises an upper portion on which a tube can be placed;
• a movable portion that faces the fixed portion and is disposed above the fixed portion, comprising a sliding surface arranged at a second end of the movable portion;
• a curved portion that curves from a first end of the fixed portion, extends upward, connects to a first end of the movable portion, and supports the movable portion so as to make the movable portion displaceable in an up-down direction of the fixed portion with elastic deformation;
• a pressing portion that protrudes from the movable portion in a direction toward the fixed portion, and presses and closes the tube when the movable portion is pressed;
• a pair of sidewalls that protrude from side portions of the fixed portion in a wall shape, respectively, and are configured to prevent lateral displacement of the tube;
• and
• a standing portion that extends upward from a second end of the fixed portion, faces the curved portion, wherein the standing portion comprises:
• a lock mechanism configured to maintain the movable portion when the movable portion is in a pressed state;
• an inclined portion having a surface comprising an oblique angle that is configured to contact the sliding surface and guide the movable portion to an inner side of the standing portion while interfacing with a tip of the movable portion;
• and
• a lateral displacement prevention mechanism that prevents a sideward deformation of the movable portion when the movable portion is pressed, comprising:
• a guide portion having a surface extending from an upper end portion of the standing portion to a locking recess operable to receive at least a part of the movable portion,
• a tapered portion;
• a linear portion;
• and
• a hanging portion arranged below the tapered portion and the linear portion;
• wherein the surface of the guide portion is arranged in a different plane than the surface of the inclined portion, and
• wherein the guide portion has a first width proximal to the upper end portion which changes via the tapered portion into a second width of the linear portion that extends to the hanging portion.