Abstract: An air cleaner is provided with: a case in which a filter element is housed and which has an opening; a cover that covers the opening of the case to be opened or closed; a hinge structure having a hinge formed to the cover and a hinge receiver formed to the case to be engaged with the hinge in a detachable manner such that the cover is pivotal around the hinge with respect to the case; and an engagement maintaining mechanism provided to side surfaces of the case and the cover so as to maintain the engagement between the case and the cover in a range in which the cover closes the case and in a range in which the cover is opened by a predetermined angle.

Abstract: An air cleaner is provided with: a case in which a filter element is housed and which has an opening; a cover that covers the opening of the case to be opened or closed; a hinge structure having a hinge formed to the cover and a hinge receiver formed to the case to be engaged with the hinge in a detachable manner such that the cover is pivotal around the hinge with respect to the case; and an engagement maintaining mechanism provided to side surfaces of the case and the cover so as to maintain the engagement between the case and the cover in a range in which the cover closes the case and in a range in which the cover is opened by a predetermined angle.

Abstract: A hinge mechanism which makes detachably engage a casing with a cover including: an insertion portion formed in the casing or cover and protrudes outward from an outer face of the one; and a holding portion extending from the other one which has an insertion hole, wherein a clip for applying a pressing force is engaged with the holding portion or the insertion portion, and includes an engagement part engaged with a tip end of the insertion hole or with an outer peripheral face of the insertion portion, and a spring part, the spring part includes a bending part bent in one axial direction, and -opposing parts on both sides thereof, and generates the pressing force to open the opposing parts, and the insertion portion is pressed against the bottom of the holding portion with the pressing force.

Abstract: In an intake manifold in which air introduced from an introduction port is fed to each cylinder of an engine by use of multiple ducts which are disposed parallel, a communication space section which provides communication between the introduction port which introduces air and inlets of the ducts is provided, this communication space section is formed so as to extend in a direction in which the inlets of the ducts are arrayed, a funnel section which causes the inlets of the ducts to be arrayed on a same surface is formed in this communication space section, and this funnel section is formed from a single member only in the main body section by providing mating surfaces of the main body section and the duct component member off the funnel section.

Abstract: In an intake manifold in which air introduced from an introduction port is fed to each cylinder of an engine by use of multiple ducts which are disposed parallel, a communication space section which provides communication between the introduction port which introduces air and inlets of the ducts is provided, this communication space section is formed so as to extend in a direction in which the inlets of the ducts are arrayed, a funnel section which causes the inlets of the ducts to be arrayed on a same surface is formed in this communication space section, and this funnel section is formed from a single member only in the main body section by providing mating surfaces of the main body section and the duct component member off the funnel section.

Abstract: A hinge mechanism which makes detachably engage a casing with a cover including: an insertion portion formed in the casing or cover and protrudes outward from an outer face of the one; and a holding portion extending from the other one which has an insertion hole, wherein a clip for applying a pressing force is engaged with the holding portion or the insertion portion, and includes an engagement part engaged with a tip end of the insertion hole or with an outer peripheral face of the insertion portion, and a spring part, the spring part includes a bending part bent in one axial direction, and -opposing parts on both sides thereof, and generates the pressing force to open the opposing parts, and the insertion portion is pressed against the bottom of the holding portion with the pressing force.