Abstract: A resin molding method includes a first molding step of molding a first molded part and a second molded part in a mold and a second molding step of joining the first molded part and the second molded part. In the first molding step, the second molded part is formed by injecting resin into an area where a first core movable in the first direction and a second core movable in a second direction are engaged. In the second molding step, the second molded part is joined to the first molded part by injecting the resin while the first core is in contact with the second molded part and the second core is removed from the second molded part. Areas where the first core and the second core are located in the first molding step become hollow areas connected to each other and part of ends of the first core in the first direction is not in contact with the second core.

Abstract: A resin molding method includes a first molding step, a sliding step, a second molding step and a mold opening step. In the first molding step, first molded part supported in a fixed mold and a second molded part supported in a die slide mold are molded in different positions in a second direction. In the sliding step, the movable mold is removed in a first direction and the first molded part and the second molded part are aligned by the die slide mold is moved in the second direction. In the second molding step, the movable mold is clamped again with the fixed mold and resin is injected into engaged portions. Each of the first molded part and the second molded part includes at least one wall extending in the first direction, and in the second molding step, the first molded part and the second molded part are engaged with each other at sides of the walls extending in the first direction.

Abstract: A filter is compressed between facing surfaces of a first configuration component and a second configuration component, and a molten resin is poured in such a compressed state. Injection molding of the first configuration component and the second configuration component, joining of the configuration components, and sealing of the circumference of the filter are performed by a pair of metal molds.

Abstract: To provide an ink cartridge capable of accomplishing satisfactory electrical connection relative to a printer main assembly.

Abstract: To provide an ink cartridge in which a satisfactory electrical connection with a printer main assembly can be established An ink cartridge 1 detachably mountable to a cartridge mounting portion 33 including an ink receiving tube 52, an electrical connecting portion 55 and a locking lever 58, the ink cartridge 1 includes a tube inserting portion 8 into which an ink receiving tube 52 is inserted and which is provided in a lower portion at a front surface 2c of a casing 2, an electrical contact 4 provided above the tube inserting portion 8 and electrically connectable with the electrical connecting portion 55, and an engaging portion 24 provided in a position closer to the electrical contact than to the tube inserting portion 8 and engageable with the locking lever 58.

Abstract: There is provided a method for manufacturing a molded member having a hollow part. The method comprises a step for molding the hollow part by extracting a first piece, a second piece, a third piece and a fourth piece of a mold in four different directions. The second piece has an elongated shape in its extracting direction, the second piece and the fourth piece have extracting directions substantially opposed to each other, and at the molding, each of the first piece, the second piece, the third piece and the fourth piece abuts on at least one of the first piece, the second piece, the third piece and the fourth piece.

Abstract: A liquid discharge head including a liquid storage chamber capable of holding a liquid, a liquid communication pipe communicating with the liquid storage chamber and being configured to supply the liquid from a liquid tank to the liquid storage chamber by installing the liquid tank to the pipe to communicate with the liquid tank, a discharge port communicating with the liquid storage chamber to discharge the liquid, an electrode pair each having an outside end portion located outside the liquid storage chamber and detecting a liquid level of the liquid storage chamber, and an electric contact portion connected to the outside end portion of each of the electrode pair. The electric contact portion is located above the liquid communication pipe with a discharge port surface on which the discharge port opens taking a position facing perpendicularly downward.

Abstract: An inkjet head including a substrate configured to discharge ink including a supporting surface formed of a resin material and configured to support the substrate, the supporting substrate including a portion continuing to a surface intersecting the supporting surface and forming a corner portion, the portion forming the corner portion including a non surface treated area which is not surface treated, the supporting surface including a portion adjacent to the non surface treated area being surface treated areas which is surface treated, wherein the substrate and the supporting surface are bonded via an adhesive agent disposed in the non surface treated area and the surface treated area.

Abstract: To provide an ink cartridge in which a satisfactory electrical connection with a printer main assembly can be established An ink cartridge 1 detachably mountable to a cartridge mounting portion 33 including an ink receiving tube 52, an electrical connecting portion 55 and a locking lever 58, the ink cartridge 1 includes a tube inserting portion 8 into which an ink receiving tube 52 is inserted and which is provided in a lower portion at a front surface 2c of a casing 2, an electrical contact 4 provided above the tube inserting portion 8 and electrically connectable with the electrical connecting portion 55, and an engaging portion 24 provided in a position closer to the electrical contact than to the tube inserting portion 8 and engageable with the locking lever 58.

Abstract: To provide an ink cartridge in which a satisfactory electrical connection with a printer main assembly can be established An ink cartridge 1 detachably mountable to a cartridge mounting portion 33 including an ink receiving tube 52, an electrical connecting portion 55 and a locking lever 58, the ink cartridge 1 includes a tube inserting portion 8 into which an ink receiving tube 52 is inserted and which is provided in a lower portion at a front surface 2c of a casing 2, an electrical contact 4 provided above the tube inserting portion 8 and electrically connectable with the electrical connecting portion 55, and an engaging portion 24 provided in a position closer to the electrical contact than to the tube inserting portion 8 and engageable with the locking lever 58.

Abstract: A liquid ejection head includes: an element-substrate to eject liquid according to an electrical signal; an electrical circuit substrate to send the electrical signal; and a body including the element-substrate on a first face and the electrical circuit substrate on a second face, in which the liquid ejection head is mounted in a mount unit of a liquid ejection apparatus via an electrical connector; the body includes a pressure-receiving portion for receiving a force including components in first and second directions; the liquid ejection head includes first and second positioning portions that determine a position of the body; and the first positioning portion is arranged at both outsides of an arrangement region of the element substrate; the second positioning portion is arranged at both sides of the second face; and the pressure-receiving portion is arranged at the both sides and an intermediate portion of the body.

Abstract: A liquid discharge head, the liquid discharge head including a liquid chamber and two electrode pins that are inserted in the liquid chamber from an upper portion of the liquid chamber. The two electrode pins are used to detect a remaining amount of liquid inside the liquid chamber on a basis of a communication state between the two electrode pins and are disposed on a centerline that is a line extending through a center of an upper surface of the liquid chamber in a moving direction of the liquid discharge head or a single electrode pin is disposed on each side of the centerline with the centerline interposed in between. An expression X1?Z1/0.4 is satisfied, where X1 is an interval between the two electrode pins and Z1 is a difference in projection lengths of the two electrode pins in the liquid chamber.

Abstract: There is provided a method for manufacturing a molded member having a hollow part. The method comprises a step for molding the hollow part by extracting a first piece, a second piece, a third piece and a fourth piece of a mold in four different directions. The second piece has an elongated shape in its extracting direction, the second piece and the fourth piece have extracting directions substantially opposed to each other, and at the molding, each of the first piece, the second piece, the third piece and the fourth piece abuts on at least one of the first piece, the second piece, the third piece and the fourth piece.

Abstract: First and second constituting components are injection-molded and joined within one pair of molds. In order to join the first and second constituting components, one of the respective regions of the first and second constituting components abutted to each other is pushed into the other.

Abstract: A molded part including a first member having a plurality of openings and a second member contacting with a peripheral edge of each of the plurality of openings so as to cover the openings, and having a hollow portion formed by sealing the contact portion with a sealing material, wherein: the second member defines a flow channel for filling the sealing material between the first member and the second member; the second member has a branched shape in which sections corresponding to positions covering the plurality of openings are branched from each other, and portions near a gate of the flow channel are connected as a common section; and the branched shape has a bridge structure for connecting the respective branched sections.

Abstract: Provided is construction that in die slide injection molding, surely leaves each part in a mold on a specified side in the stage of opening a molding mold. In order to accomplish this, in an opening step, a push-out mechanism that applies a force on at least one of the individual parts is used to make the part surely belong to a desired mold.

Abstract: There is provided a manufacturing method for molding a liquid supply member by using a first mold and a second mold in which the first mold is capable of being slid relatively to the second mold, the method including a first molding step of performing injection molding to form a first and second component parts of the liquid supply member at different positions from each other, an evacuating step of sliding the formed second component part in a direction intersecting with a direction of sliding of the first mold relative to the second mold and with a direction of the opening and the closing the first and the second mold, a contacting step of bringing the formed second component part into contact with the molded first component part, and a second molding step of performing injection molding to join the first component part and the second component part.

Abstract: There is provided a manufacturing method for molding a liquid supply member by using a first mold and a second mold. The method includes a first molding step of performing injection molding to form a first component part of the liquid supply member and a plurality of component parts of the liquid supply member other than the first component part at different positions from each other, with the first and the second mold closed relative to each other, a contacting step of moving each of the formed plurality of component parts relatively to the first component part to bring the formed first component part into contact with the formed plurality of component parts, with the first and the second mold opened relative to each other, and a second molding step of performing injection molding to join the first component part and the plurality of component parts.

Abstract: A housing and a cover member are injection-molded and these housing and cover member are joined within a pair of mold. When the housing and the cover member are joined by molten resin, a mold for suppressing deformation is positioned at a face of the housing opposite to a face receiving a pressure of the molten resin.

Abstract: Provided is a method for manufacturing a liquid-ejecting head whereby in die slide injection molding it is possible to stably inject resin in secondary molding without damaging the shapes of parts that were formed in primary molding. In order for that, in the connecting section in which a convex section of a cover member is inserted into an opening of a liquid-supply member, the closest distance to the opening in the area where secondary resin is injected is made larger than the gap between the opening and the convex section. As a result, the resin is prevented from flowing into a liquid path during the secondary molding.