摘要:
A push button capable of surely performing the on and off operation thereof even when one contact fails while the push button is used and a teaching pendant using the push button, wherein two c-contacts (9a, 9b) having a snap action structure and switching mechanisms (11a, 11b) for opening and closing the c-contacts (9a, 9b) are installed in a switch case (3), whereby, when the push button (5) is pressed, the c-contacts (9a, 9b) are opened and closed simultaneously by the switching mechanisms (11a, 11b) to turn on and off the push button (1).
摘要:
When an operator applies a removing force which turns in the direction (C2) to a switch portion (b), a projection (a4) abuts against the slope (b71) of a guide (b7), so that the removing force is applied as a reaction from the projection (a4) to the slope (b71). This removing force is divided into two components, one extending along the slope (b71) and the other (F) having the same direction as the center axis (X); thus, it follows that the removing force is converted into the force (F) having the same direction as the center axis (X). This force (F) having the same direction as the center axis (X) moves a pushbutton support (b6) downward, and at the same time, a movable contact (b9) is pulled apart from a fixed contact (b12) through a contact axis (b5).
摘要:
A push-button switch 5 disposed in a switch case 3 has c-contacts and a normally close contact electrically connected with a terminal block 9 via conductors 39. Leading ends 23 of cores of a cable 7 introduced into the switch case 3 are inserted in insertion holes 49a, 49b formed in the terminal block 9. Screws 53a, 53b mounted to the terminal block 9 are tightened to press the leading ends 23 of the cores against conductive connection portions, on one side, in the insertion holes 49a, 49b, thereby to establish electrical connection.
摘要:
In a case where a left-hand push-button switch is ON, a second relay RL2 is electrically de-energized to open a normally close contact RL2-1 of the second relay RL2 so that a relay contact circuit RC is opened. If, in this state, a right-hand push-button switch is shifted to a second OFF state, a normally close contact R3-1 of the right-hand push-button switch is opened. Thus, a third relay RL3 is not electrically de-energized and a first and a second circuits are in cutoff until both the right-hand and the left-hand push-button switches are returned to a first OFF state.
摘要:
A connector comprises locking springs 3 in which fixed pieces 31 are combined with movable pieces 32 via resilient transformed parts 33 and pushing parts 34 and in which the tips of the fixed pieces 31 are inserted into connection holes 32a formed in the movable pieces 32; a case 1 for accommodating the locking springs 3; terminal fittings 2 locating on the outer surfaces of the fixed pieces of the locking springs 3; wire slots 11b formed opposite to the movable pieces 32 of the locking springs 3; and levers 4 for pressing the pushing parts 34 of the locking springs 3. When the lever 4 is in a non-operative position, tool entrances 11c are provided at an opening 11a which accepts the lever 4. Each tool entrance 11c leads to a contact area where the lever 4 meets the pushing part 34 of the locking spring 3.
摘要:
In a relay (100), right and left sides of an edge on an upper end side of an L-shaped armature (201) are bent to form an engagement portion (201a) and the armature 201 is held to be rocked and displaced through an energizing spring piece (205c) of a hinge spring (205) in a state in which the engagement portion (201a) is engaged with an edge portion 204c of an end face 204a on an upper end side of a core (204). During magnetic adsorption, moreover, an upper end of the armature (201) has an outer peripheral surface thereof to abut on the end face (204a) at the upper end side of the core (201) in a close contact state.
摘要:
A switch assembly (1) comprises a push-button section (52) and a push-button body (53) as an operation transmitting member, an LED box (54) and a contact-making contact (56) as a direct functioning member, and a communication-function incorporating contact (communications contact) (55) as an information input/output functioning member, as permitting these components to be connected with each other. Therefore, the switch assembly can respond to an operation given to the push-button body (52) by causing the contact-making contact (56) to provide an output for switching between a conductive state and a non-conductive state and by causing the communications contact (55) to output an information signal to a network.
摘要:
Panel units (24a to 24d) constituting an operation indicating panel (20) each have a surface S of rectangle with length and width each being substantially an integral multiple of a predetermined reference size (L). The panel units (24a to 24d) are placed so that their surfaces S may be adjacent to one another. A whole surface (AS) consisting of the surfaces S of all the panel units (24a to 24d) is formed in a rectangular shape with length and width each being substantially an integral multiple of the predetermined reference size (L). The arrangement and the like of the panel units (24a to 24d) can be easily changed.