Abstract:
PROBLEM TO BE SOLVED: To adjust design parameters such as a contact gap, an excessive stroke, a movable element gap at the time of assembling by a method wherein a back span of a control member is oriented so as to face a first end of a movable element, and can be engaged with the first end of the movable element. SOLUTION: When a relay 10 is assembled, a control member 34 is inserted between a flange 42 of a winding body 22 and an enlargement 44, and is retained by a friction spring therebetween. In order to establish a contact gap and a proper degree of an excessive stroke, a movable element 26 can be moved bypassing a bridge 28 against a free end 32 of a movable contact 18. When the movable element 26 is controlled, a first end 30 of the movable element 26 is engaged with a back span 36 of the control member 34, which are pressed between the flange 42 of the winding body 22 and the enlargement 44. A correct position of the control member 34 is maintained based on the release of the movable element 26 by the friction spring so that a desired contact gap and a desired degree of the excessive stroke can be obtained.
Abstract:
PROBLEM TO BE SOLVED: To more inexpensively manufacture a load cutoff switch by forming a compact and simple structure with a few components in particular. SOLUTION: In this cutoff switch, a contact supporting body is a slender contact spring 8 having one end clamped in a plastic casing, the contact spring 8 supports a movable contact 81 in the central area of its length. The contact spring is engaged with the outer end part of the first lever 32 of a knuckle lever at its free end part 82, and forms a first rotating joint.
Abstract:
PROBLEM TO BE SOLVED: To lower the cost while facilitating the manufacture, and to improve the flexibility of the structural shape by forming a socket of two boards of an upper and a lower printed wiring boards, and driving a movable contact provided between both the boards so as to open and close a conductor path between both the boards. SOLUTION: A socket 2 is formed of a first and a second printed wiring boards 7, 8 respectively provided with a fixed contact member 13, and a movable contact member 10 to be vertically operated by the movement of an operating member 11 to be driven by an exciting coil 3 of a magnet system 1 opens and closes a conductor path between each printed wiring boards 7, 8 through a pin-contact connecting member 14 while abutting and separating on/from each fixed contact member 13 of both the printed wiring boards 7, 8. With this structure, electromagnetic relay can be manufactured without using an expensive special tool for drawing work and without using the enclosed injection. Furthermore, flexible utilization such as switching of plural relays by providing plural magnet systems in a common printed wiring board is possible.
Abstract:
PROBLEM TO BE SOLVED: To easily adjust a polarizable electromagnetic relay and to reduce the total height by about 5 mm. SOLUTION: This relay is provided with a substrate 1, a moving piece 4, a coating 3 made of an insulating material, a coil 5, a core 53 and a rod-like permanent magnet 6. The substrate 1 specifies the reference plane on the bottom side, and the moving piece 4 is arranged between two contact springs located in one common plane in parallel. Two lateral connecting webs extended with thin plate planes perpendicularly to the reference plane are protruded from the coating 3 in the region of the rotary axis of the moving piece 4. The connecting webs are connected to one fixing tab 24 extended with the thin plate plane perpendicularly to the reference plane. Each contact spring is provided with two spring arms 21 and one connecting web 22 directed with the thin plate plane perpendicularly to the reference plane.
Abstract:
PROBLEM TO BE SOLVED: To provide a magnet device with which a relay can be constituted in a compact structure by surely separating the load circuit and exciting circuit of the relay from each other. SOLUTION: A magnet device for electromagnetic relay has a core 11, an armature, three inner insulating layers 1-3, a winding 15, and fourth to sixth insulating layers 4-(6) and the core 11 has a winding supporting body portion and pole portions 13a and 13b joined to the portion 12. The armature forms at least one actuating space together with the free end sections of the pole portions 13a and 13b. The three inner insulating layers 1-3 surround the core 11 except the terminal end section of the core 11 which is in contact with the armature and at least one of the layers 1-3 forms a coil former having two flanges. The fourth to sixth insulating layers 4-6 are formed in such a way that the layer 4 surrounds the inner insulating layers 1-3 and winding 15 and the layers 4-6 surround the division of the winding 15 facing the armature.
Abstract:
PROBLEM TO BE SOLVED: To lessen serious damages to a board and a board insert type connector by constituting a mechanism of the board insert type connector, operable by a rotary motion of an operating lever. SOLUTION: A board insert type connector 6 comprises a slit 61 elongating in the length direction of the connector 6 at the top face, a first board 1 inserted in the slit 61 to combine with a second board 5 through the connector 6, a mechanism 7 disposed at the center of the connector 6, a rod 3 mounted on the first board 1 for operating the mechanism 7 and an operating lever 31 mounted on the opposite end to the connector 6, the lever 31 being operable for a rotary motion of the rod 3. Thus the fear of serious damages to the connector 6 can be lessened.
Abstract:
PROBLEM TO BE SOLVED: To prevent permanent deformation of a blade spring during impact load, and to sharply reduce at least deformation operation. SOLUTION: In this electromagnetic relay, an extending region for a blade spring 10, which is wedged in a static state is formed between support divisions 23, 33, 43 and free ends 24, 32, 41 of support bodies 22, 30, 40, and this extending region, is formed separated from planes of the support divisions 23, 33, 43 due to the recessed bent in extending divisions 25, 35, 55 of the support bodies 22, 30 and/or a blade spring 50.
Abstract:
PROBLEM TO BE SOLVED: To lower the height of a polarized relay with two changeover contacts, and to facilitate adjustment of both its contact space and its armature stroke. SOLUTION: A coil 5 is disposed above an armature 4, while each of plural contact springs has two spring arms 21 and a connecting web 22 whose sheet metal plane is oriented perpendicularly to a reference plane. Each spring arm 21 has a contact connection part and an embedded part in a covering body 3. The embedded part of the spring arm 21 leads to the connecting web 22, while a lug 24 is fixed to a central contact connection pin 12 perpendicularly protruding from a base body 1.
Abstract:
PROBLEM TO BE SOLVED: To provide a structural improvement in relation to a coil terminal of an electromagnetic relay. SOLUTION: A base 52 forming a bottom surface and an electromagnetic assembly fitted on the base 52 are installed. The electromagnetic assembly is composed of a wound body 54, a core and at least one winding installed with the core as its center. An armature supported movably as a designated part is centered in order to move between two positions of contacting actions, at least one contact assembly, and at least one terminal member fitted on the base 52, are installed. The terminal member has a distal terminal part in order to electrically connect a terminal part of the winding with an energy source, and a proximal terminal part formed by at least one hanging leg 68 in order to form a slot in which at least one lead wire of an electric component 66 is stored.
Abstract:
The ends (4) of a lead frame (1) which are situated on the side of the sensor element circumscribe a contact region (5) in which the planar sensor element (3) is arranged in the lead frame plane. The lead frame (1) is extrusion coated with a flat plastic housing (6) out of which the outer terminals (2) lead. A recess (7) provided in the housing (6) is perpendicular to the lead frame plane and encloses at least the contact region (5). This facilitates the assembly, in particular, of sensor elements (3) which are connected on two sides.