摘要:
An objective of the invention is to provide a power window switch apparatus for an automobile such that the circuit boards within the case which hold the electronic components could be soldered on one side only, thereby reducing production cost and making it easier to lead the wiring pattern around the boards despite the space limitations imposed by the car door. The freedom with which the circuit boards could be designed is also increased. Circuit boards are built into a case facing each other at right angles to the surface on which operating knobs are arranged in a row. This arrangement makes it easy to solder modular switches and wiring terminals of the connector to the circuit boards on one side only. It also makes it possible to increase the surface area of the circuit boards to the very limit of the height restriction imposed on the switch apparatus by the automobile door.
摘要:
A switch apparatus of the invention can avoid contact damage without inviting a drastic increase in a size even when applied to a high power source voltage and does not deteriorate return feeling to a neutral state. The switch apparatus includes a switch A for cutting off connection between one side driving input of a DC motor and a negative plate side power source, a switch B for cutting off connection between the other side driving input and the negative plate side power source, and a switch C for cutting off connection between the one side driving input and the positive plate side power source and connection between the other side driving input and the positive plate side power source, wherein the switch A and the switch B are normally-closed type switches and the switch C is a normally-open type switch. The switch C is opened at a predetermined time before the switch A or the switch B is closed, and cuts off in advance a power source route to avoid the occurrence of dead short-circuit. When the switch C has a slide type structure, switch feeling of contacts of the switch C can be improved.
摘要:
In a switch, the speed at which contacts are separated from each other is increased without depending on the speed at which an operating member is operated, so that an arc is prevented from being generated, to prevent the operating member to be deformed by heat generation and prevent the durability of the switch to be decreased due to the abrasion of the contacts. A movable contact member having movable contacts at both its ends is swingably supported with a common fixed contact projecting upward and serving as a fulcrum. A leaf spring is fixed to a slider. The leaf spring has a portion projecting in a U shape. The U-shaped portion is engaged with the center of the movable contact member. When the slider is moved, the U-shaped portion is distorted in the transverse direction. When the slider is further moved, the U-shaped portion gets beyond the fulcrum, so that the movable contact is rapidly separated from a normally open fixed contact.
摘要:
A novel 4-cyanopiperidine derivative, which is represented by the following general formula (I): ##STR1## wherein X means a halogen atom, or an acid addition salt thereof, is prepared by reacting N-(2-hydroxyethyl)-4-carbamoylpiperidine or an acid addition salt thereof with a dehydrating and halogenating agent; or by reacting 4-cyanopiperidine or a salt thereof with a compound represented by the following general formula (IV):X--CH.sub.2 CH.sub.2 --Y (IV)wherein X has the same meaning as defined above and Y denotes the same halogen atom as X or another halogen atom. The derivative is useful as intermediate for synthesis of quinuclidine derivative which is in turn useful as intermediate for the production of medicines, chemicals, etc.
摘要:
A driving device for a motor has a mounting substrate mounted to a base substrate. Highly heat-generating components such as a switching element for PWM control are mounted to the mounting substrate and only less heat-generating circuit components are mounted to the base substrate. The mounting substrate has a base plate part made of a metallic plate material surround by a molded insulating material but includes a heat dissipating part where the insulating material is removed and the internal metallic plate material is exposed.
摘要:
A driving device for a motor has a mounting substrate mounted to a base substrate. Highly heat-generating components such as a switching element for PWM control are mounted to the mounting substrate and only less heat-generating circuit components are mounted to the base substrate. The mounting substrate has a base plate part made of a metallic plate material surround by a molded insulating material but includes a heat dissipating part where the insulating material is removed and the internal metallic plate material is exposed.
摘要:
Improved process for the preparation of 7-(2-amino-2-phenyl-acetamido)cephem derivatives of the general formula (I): ##STR1## wherein R.sub.1 is a hydrogwn atom or hydroxyl group, n stands for 0, 1 or 2, and A denotes a nitrogen-containing heterocyclic group or a direct bond coupling directly the sulfur atom and the --(CH.sub.2).sub.n COOH group together, as well as pharmaceutically acceptable salts thereof. The process is not only simple and easy to carry out, but also provides as crystalline precipitate the intended products with a high yield. The 7-(2-amino-2-phenyl-acetamido)cephem derivatives are useful as intermediates for syntheses of antibacterial agents.
摘要:
A power window switch has a case, a substrate disposed in the case, a window operation knob disposed on the case, a window lock button disposed on a front side of the window operation knob on the case, a window operation switch mechanism disposed in the case and activated in accordance with an operation of the window operation knob, a window lock switch mechanism disposed in the case and activated in accordance with an operation of the window lock button, and a connector having a terminal with a first terminal end protruding from the case and a second terminal end connected to the substrate. The window lock switch mechanism includes two conductive plate springs, and a pressing unit for pressing the plate springs.
摘要:
There is provided a control device for driving a movable member such as a power window of a vehicle under control, in which the action of the movable member (including the manual operation) at an action velocity corresponding to the intention of the user is achieved by operating only a operating knob for issuing a command relating to the action of the movable member. The control device includes a detecting unit which can generate an output value varying in accordance with the action of the operating knob, and a control unit for determining the operating velocity of the operating knob based on the output value, deciding the action velocity according to the determined operating velocity, and driving the motor under control so that the movable member moves at the decided action velocity.
摘要:
A switch device for rotating and stopping a DC motor includes a first switch element having two moving contacts, two normally open NO contacts and two normally closed NC contacts, a second switch element having one or two normally closed NC contacts, and an operating element. The operating element serves to connect the two moving contacts individually to input terminals of the DC motor, the two NO contacts to a voltage source line at a higher voltage, and each of the two NC contacts of the first switch element to another voltage source line at a lower voltage such as the ground potential, each through the NC contact, or one of the two NC contacts, of the second switch element. The NC contact of the second switch element is maintained in an open condition during a period from when either one of the NO contacts begins to change from a closed condition to an open condition until the corresponding NC contact of the first switch element finishes changing from an open condition to a closed condition.