Abstract: An electromagnetic relay has a movable touch piece, a movable contact provided on the movable touch piece, and a fixed contact opposed to the movable contact. The movable touch piece is rotated by a movable iron piece that rotates based on magnetization and demagnetization of an electromagnet block, to make the movable contact come into contact with and separate from the fixed contact. Operation characteristics are made adjustable by a press-fitting amount at the time of press-fitting a fixed contact terminal provided with the fixed contact into a spool of the electromagnet block along a moving direction of the movable contact.

Abstract: A coil terminal has a winding section comprising an end of coiled wire wound therearound. The winding section is bent relative to a remaining section of the coil terminal. The winding section has a proximal wire engagement portion and a distal wire engagement portion spaced away from each other in a longitudinal direction of the winding section, and an intermediate region disposed between the proximal wire engagement portion and the distal wire engagement portion. The wire end is extended in the intermediate region without being wound around the intermediate region.

Abstract: An electromagnetic relay has a base having an upper surface, an electromagnet block, formed by winding a coil around a spool with at least one end provided with a guard portion and inserting an iron core through a through hole of the spool, mounted on the upper surface of the base such that a shaft center of the iron core is parallel to the base, a movable contact, provided at a free end of a movable touch piece that rotates based on magnetization and demagnetization of the electromagnet block, that is brought into contact with or separated from a fixed contact, and a press-fitting portion that is press-fitted into a press-fitting hole provided at the edge of the outward surface of the guard portion along the shaft center of the iron core. The press-fitting portion extends to the lateral side from a fixed contact terminal that has the fixed contact.

Abstract: A coil terminal has a winding section comprising an end of coiled wire wound therearound. The winding section is bent relative to a remaining section of the coil terminal. The winding section has a proximal wire engagement portion and a distal wire engagement portion spaced away from each other in a longitudinal direction of the winding section, and an intermediate region disposed between the proximal wire engagement portion and the distal wire engagement portion. The wire end is extended in the intermediate region without being wound around the intermediate region.

Abstract: An electromagnetic relay has a base having an upper surface, an electromagnet block, formed by inserting an iron core through a through hole of a spool wound with a coil, mounted on the upper surface of the base such that a shaft center of the iron core is parallel to the base, and a casing fitted to the base to cover the electromagnet block. Guard portions provided on both sides of the spool are held between the base and the casing.

Abstract: An electromagnetic relay has a movable touch piece, a movable contact provided on the movable touch piece, and a fixed contact opposed to the movable contact. The movable touch piece is rotated by a movable iron piece that rotates based on magnetization and demagnetization of an electromagnet block, to make the movable contact come into contact with and separate from the fixed contact. Operation characteristics are made adjustable by a press-fitting amount at the time of press-fitting a fixed contact terminal provided with the fixed contact into a spool of the electromagnet block along a moving direction of the movable contact.

Abstract: An electromagnetic relay has a base having an upper surface, an electromagnet block, formed by winding a coil around a spool with at least one end provided with a guard portion and inserting an iron core through a through hole of the spool, mounted on the upper surface of the base such that a shaft center of the iron core is parallel to the base, a movable contact, provided at a free end of a movable touch piece that rotates based on magnetization and demagnetization of the electromagnet block, that is brought into contact with or separated from a fixed contact, and a press-fitting portion that is press-fitted into a press-fitting hole provided at the edge of the outward surface of the guard portion along the shaft center of the iron core. The press-fitting portion extends to the lateral side from a fixed contact terminal that has the fixed contact.

Abstract: An electromagnetic relay includes a base and an electromagnetic block mounted on a surface of the base, which is formed by winding a coil around a first end portion of an iron core. The first end portion serves as a magnetic pole portion, and a second end portion of the iron core is caulk-fixed to a vertical portion of a yoke having a generally L-shape in cross section. The electromagnetic relay also includes a movable iron piece rotated based on excitation and non-excitation of the electromagnetic block and a card for driving a contact mechanism portion by making a reciprocating movement through the movable iron piece. A shallow groove along an outer peripheral surface of the wound coil is formed in an upper surface of a horizontal portion of the yoke along a lengthwise direction.

Abstract: An electromagnetic relay includes an electromagnetic block formed by winding a coil around an iron core and a frame shaped card. One end portion of the frame-shaped card is engaged with a movable iron piece that is rotated by being attracted to and separated from a magnetic pole portion of the iron core based on excitation and non-excitation of the electromagnetic block. The electromagnetic relay also includes a contact mechanism portion configured to be driven by the other end portion of the frame-shaped card that makes a reciprocating movement so as to open/close contacts and a pair of protrusions protrusively provided on the same shaft center inside of the one end portion of the frame-shaped card. Both side edge portions of the movable iron piece are held by the one end portion of the card and the protrusions. An adjustment opening is provided between the pair of protrusions.

Abstract: An electromagnetic relay includes a base and an electromagnetic block mounted on a surface of the base, which is formed by winding a coil around a first end portion of an iron core. The first end portion serves as a magnetic pole portion, and a second end portion of the iron core is caulk-fixed to a vertical portion of a yoke having a generally L-shape in cross section. The electromagnetic relay also includes a movable iron piece rotated based on excitation and non-excitation of the electromagnetic block and a card for driving a contact mechanism portion by making a reciprocating movement through the movable iron piece. A shallow groove along an outer peripheral surface of the wound coil is formed in an upper surface of a horizontal portion of the yoke along a lengthwise direction.

Abstract: An electromagnetic relay includes an electromagnetic block formed by winding a coil around an iron core and a frame shaped card. One end portion of the frame-shaped card is engaged with a movable iron piece that is rotated by being attracted to and separated from a magnetic pole portion of the iron core based on excitation and non-excitation of the electromagnetic block. The electromagnetic relay also includes a contact mechanism portion configured to be driven by the other end portion of the frame-shaped card that makes a reciprocating movement so as to open/close contacts and a pair of protrusions protrusively provided on the same shaft center inside of the one end portion of the frame-shaped card. Both side edge portions of the movable iron piece are held by the one end portion of the card and the protrusions. An adjustment opening is provided between the pair of protrusions.

Abstract: In order to provide an electromagnetic relay in which mold manufacturing and assembling work are easy, the electromagnetic relay comprises: a base 10; an electromagnetic block 20 mounted on the base 10, in which one end portion of an iron core 30 around which a coil 21 is wound serves as a magnetic pole portion 31, and the other end portion 32 is caulk-fixed to an L-shaped yoke 40; a movable iron piece 50 rotatably supported on the yoke 40 through an L-shaped hinge spring 60, whose horizontal portion 61 is inserted between an upper surface of the base 10 and a bottom surface of the yoke 40, and facing the magnetic pole portion 31 of the iron core 30 so as to be able to be contacted with and separated from the magnetic pole portion 31 of the iron core 30; and a card 80 making a reciprocating movement based on rotation of the movable iron piece 50; and a contact mechanism portion 70 formed on the base 10 and driven by the card 80.

Abstract: An electromagnetic relay having a moving contact plate and fixed contact plates juxtaposed with one another on a base. A moving iron plate is rotated during magnetization/demagnetization of a coil block put on the base to reciprocate a card in a horizontal direction. The moving contact plate is allowed to undergo elastic deformation so that a contact on the moving contact plate is brought into contact and out of contact with contacts on the fixed contact plates. The top corners of the moving contact plate is bent into an upper component and a lower components in such a fashion as to form card acceptance portions, and a distal end portion of the card is brought into contact with an inner surface of the card acceptance portions.

Abstract: For manufacturing a thin electromagnetic relay having desired attractive force, both arms as upstanding portions disposed at both ends of a barrel of a plate magnetic material which is punched to be substantially U-shaped as viewed from the front by press working are bended to form magnetic poles having magnetic-pole surfaces extending in a horizontal direction. A vertical face passing through the center of the barrel crosses the centers of the magnetic-pole surfaces at right angles. The width of the barrel is smaller than the height of the barrel.

Abstract: For manufacturing a thin electromagnetic relay having desired attractive force, both arms as upstanding portions disposed at both ends of a barrel of a plate magnetic material which is punched to be substantially U-shaped as viewed from the front by press working are bended to form magnetic poles having magnetic-pole surfaces extending in a horizontal direction. A vertical face passing through the center of the barrel crosses the centers of the magnetic-pole surfaces at right angles. The width of the barrel is smaller than the height of the barrel.

Abstract: An electromagnetic relay makes it difficult for deformation due to impact force to easily occur even when bending work is applied to a contact plate. A coil block is put on a base and a moving contact plate and fixed contact plates are so juxtaposed as to oppose one another. The moving contact plate is constituted by a contact-fitting portion to which a moving contact is fixed, a push-in fixing portion which is pushed in and fixed to the base and from which terminal portions extend, and a connection portion for connecting the contact-fitting portion and the push-in fixing portion. The connection portion has a width smaller than those of the contact-fitting portion and the push-in fixing portion.

Abstract: An electromagnetic relay prevents appropriately invasion of a sealant. A coil block 3 produced by winding a coil 29 on a core 27 through a spool 28 and connecting the coil 29 to coil terminals 42 disposed at flanges 28a and 28b of the spool 28 is put onto a base 1. The through-holes 15 are sealed under the state where the coil terminals 42 protrude from the through-holes 15 formed in the base 1. An attraction surface 27a of the plate 27 is positioned on the side of the base 1 so that a moving iron plate 32 can be attracted and operated between the coil block 3 and the base 1. An increased thickness portion 41 into which the coil terminal 42 can be pushed is formed in each flange 28a, 28b of the spool 28 and a recess 43 for storing a sealant entering inside from the through-hole 15 is formed around the coil terminal 42.

Abstract: The invention provides an electromagnetic relay excellent in insulating property and high in opening and closing characteristics and productivity. Therefore, a pair of pedestal portions for coil terminals are arranged in the outer circumferential edge portion of the lower flange portion of a spool. A coil drawing-out groove continuously connected to the upper face of the above pedestal portion for a coil terminal is formed along the outer circumferential edge portion of the above lower flange portion. A storing concave portion able to store a shading coil attached to a magnetic pole portion of an iron core projected from a central hole of the above spool is formed on the lower face of the above lower flange portion.

Abstract: The invention provides an electromagnetic relay excellent in insulating property and high in opening and closing characteristics and productivity.

Abstract: An electromagnetic relay prevents appropriately invasion of a sealant. A coil block 3 produced by winding a coil 29 on a core 27 through a spool 28 and connecting the coil 29 to coil terminals 42 disposed at flanges 28a and 28b of the spool 28 is put onto a base 1. The through-holes 15 are sealed under the state where the coil terminals 42 protrude from the through-holes 15 formed in the base 1. An attraction surface 27a of the plate 27 is positioned on the side of the base 1 so that a moving iron plate 32 can be attracted and operated between the coil block 3 and the base 1. An increased thickness portion 41 into which the coil terminal 42 can be pushed is formed in each flange 28a, 28b of the spool 28 and a recess 43 for storing a sealant entering inside from the through-hole 15 is formed around the coil terminal 42.