Abstract: A housing (36) of a solenoid (33) is configured by including an accommodating tube portion (36A) extending in a winding axis direction of a coil (34A) and being open at one end. An anchor (41) is provided at such a position as to face the opening of the accommodating tube portion of the housing and includes a protruding portion (41) and a lateral face portion (41D) which are formed in an integral manner. A yoke (39) includes a fixing hole (39A). The fixing hole includes an inner peripheral face facing a part of the lateral face portion of the anchor. A cylinder (44) is joined to an inner periphery of the yoke at an outer periphery on one side in the winding axis direction of the coil and joined to an outer periphery of the housing at an inner periphery on the other side.

Abstract: A solenoid comprises a mold coil, a housing, a yoke, an anchor, a cylinder, and an armature. The housing and the yoke are connected together with the cylinder intervening therebetween. The housing includes an accommodating tube portion including a first end portion, a second end portion, and a third end portion. The first end portion faces the anchor. The second end portion is axially recessed back from the first end portion and includes an abutting portion that abuts against the other axial end of the cylinder. The third end portion is axially recessed further back from the first end portion than the second end portion and accommodates solder (copper ring) for sealing space between the third end portion and the cylinder.

Abstract: A solenoid includes a stator at a position facing an opening of a housing member. The stator includes a conical protrusion portion and a side surface made from a magnetic body. The side surface extends from an outer periphery of a reduced diameter portion in a direction away from the opening of the housing member. The solenoid includes a yoke with a fixation hole having an inner peripheral surface to which a part of a side surface portion of the stator is fixed. A non-contact portion, where the yoke and the side surface portion are out of contact with each other, is defined on a housing member side of the fixation hole. The solenoid includes a non-magnetic connection member joined by being heated between the housing member and the yoke, and a movable element which is axially movable in the housing member and made from a magnetic body.

Abstract: The present invention aims to provide a valve driving device that suppresses an increase in size and improves thrust. The present invention includes a bobbin including a body portion, a solenoid coil wound around the body portion of the bobbin, an armature arranged on a radially inner side of the bobbin and fixed to a rod, an anchor that covers one side in an axial direction of the armature at a position on the radially inner side of the bobbin, a yoke partially arranged between the bobbin and the anchor, and a cylindrical member arranged between the bobbin and the armature. The bobbin includes a recessed portion on the radially inner side, and a part of the cylindrical member is inserted into the recessed portion. A part of the cylindrical member and the recessed portion are arranged so as to be laminated in the radial direction.

Abstract: A solenoid includes a coil, a housing, an armature, an anchor, and a cover member. The coil is wound annularly, and is configured to generate a magnetic force in reaction to power supply. The armature is provided movably in a direction of a winding axis of the coil, and is made of a magnetic body. The anchor is provided on one side in a movement direction of the armature. The housing is opened on one axial end side. The cover member covers the coil, and is configured to establish a magnetic circuit. The cover member is formed by pressing a plate-like member having an even thickness. The cover member is formed using a plurality of differently shaped members (a first member and a second member).

Abstract: The present invention provides a solenoid, a damping force adjustment mechanism, and a damping force adjustable shock absorber capable of securing a thrust force of a mover (a moving core) and also suppressing a vibration at the same time. The solenoid includes a coil, an armature, an anchor, and an actuation pin. The coil generates a magnetic field in reaction to power supply thereto. The armature is at least partially located on an inner peripheral side of the coil, and is provided axially movably. The anchor faces the armature axially. The actuation pin is displaced integrally with the armature. The armature includes a large-diameter portion and a small-diameter portion. In this case, the small-diameter portion is provided on the anchor side.

Abstract: A solenoid comprises a mold coil, a housing, a yoke, an anchor, a cylinder, and an armature. The housing and the yoke are connected together with the cylinder intervening therebetween. The housing includes an accommodating tube portion including a first end portion, a second end portion, and a third end portion. The first end portion faces the anchor. The second end portion is axially recessed back from the first end portion and includes an abutting portion that abuts against the other axial end of the cylinder. The third end portion is axially recessed further back from the first end portion than the second end portion and accommodates solder (copper ring) for sealing space between the third end portion and the cylinder.

Abstract: A housing (36) of a solenoid (33) is configured by including an accommodating tube portion (36A) extending in a winding axis direction of a coil (34A) and being open at one end. An anchor (41) is provided at such a position as to face the opening of the accommodating tube portion of the housing and includes a protruding portion (41) and a lateral face portion (41D) which are formed in an integral manner. A yoke (39) includes a fixing hole (39A). The fixing hole includes an inner peripheral face facing a part of the lateral face portion of the anchor. A cylinder (44) is joined to an inner periphery of the yoke at an outer periphery on one side in the winding axis direction of the coil and joined to an outer periphery of the housing at an inner periphery on the other side.

Abstract: The present invention aims to provide a valve driving device that suppresses an increase in size and improves thrust. The present invention includes a bobbin including a body portion, a solenoid coil wound around the body portion of the bobbin, an armature arranged on a radially inner side of the bobbin and fixed to a rod, an anchor that covers one side in an axial direction of the armature at a position on the radially inner side of the bobbin, a yoke partially arranged between the bobbin and the anchor, and a cylindrical member arranged between the bobbin and the armature. The bobbin includes a recessed portion on the radially inner side, and a part of the cylindrical member is inserted into the recessed portion. A part of the cylindrical member and the recessed portion are arranged so as to be laminated in the radial direction.

Abstract: A stator provided at a position facing an opening of a housing member. The stator includes a conical protrusion portion and a side surface made from a magnetic body. The side surface extends from an outer periphery of the reduced diameter portion in a direction away from the opening of the housing member. Also included is a yoke with a fixation hole having an inner peripheral surface to which a part of the side surface portion of the stator is fixed. A non-contact portion, where the yoke and the side surface portion are out of contact with each other, is formed on the housing member side of the fixation hole. Also included is a non-magnetic connection member joined by being heated between the housing member and the yoke, and a movable element provided axially movably in the housing member and made from a magnetic body.