Abstract: A solenoid includes a coil, an after-formation terminal, and a yoke. The after-formation terminal includes an internal connection part and an external connection part. The internal connection part is conductively-joined to a conductor from which the coil is formed, or to a conductor which is connected to the coil. The external connection part is fitted and connected to a counterpart terminal. The yoke forms a magnetic circuit together with the coil. The after-formation terminal is disposed at an upper surface of the yoke. The external connection part is configured integrally with the internal connection part. The after-formation terminal is formed through application of bending or twisting to an intermediate part between the internal connection part and the external connection part of a before-formation terminal, which projects outward from the upper surface of the yoke in a direction of a central axis of the coil.

Abstract: An adjust screw is inserted into a receiving hole of a sleeve to adjust and maintain a set load of the spring in a state where a male-threaded portion of the adjust screw is engaged with a female-threaded portion of the sleeve. One or more wall sections of the sleeve is plastically deformed in a radially inward direction and is pressed against a predetermined portion of an outer peripheral surface of the adjust screw, which is other than the male-threaded portion, to limit rotation of the adjust screw.

Abstract: An upright keyboard musical instrument has an open/close board attached to the top position of a case, wherein the lower surface of the open/close board is subjected to mirror surface finishing and is supported by a lid prop, which is rotatably arranged in proximity to the top board to rotate about a support axis and is formed in an L-shape to have a plurality of support surfaces, realizing different angles for the open/close board being opened. The mirror surface of the open/close board projects images representing internal members of the case, such as an emblem and actions. By appropriately rotating the lid prop, it is possible to realize a desired angle for the open/close board, thus realizing tone volume control and visually entertaining effects in musical performance.

Abstract: An upright keyboard musical instrument has an open/close board attached to the top position of a case, wherein the lower surface of the open/close board is subjected to mirror surface finishing and is supported by a lid prop, which is rotatably arranged in proximity to the top board to rotate about a support axis and is formed in an L-shape to have a plurality of support surfaces, realizing different angles for the open/close board being opened. The mirror surface of the open/close board projects images representing internal members of the case, such as an emblem and actions. By appropriately rotating the lid prop, it is possible to realize a desired angle for the open/close board, thus realizing tone volume control and visually entertaining effects in musical performance.