摘要:
A developing apparatus of an electrophotographic apparatus includes a housing for accommodating a developer, first, second and third developing rollers are rotatably disposed in the housing and arranged opposite to a photoconductor drum for conveying a developer carried on respective surfaces of the developing rollers, and a conveyor roller rotatably disposed in the housing for conveying the developer carried on a surface thereof to one of the developing rollers. First and second screw conveyors are disposed in the housing for conveying the developer in an axial direction opposite to each other. Each of these conveyors has an axial length larger than an axial length of the developing rollers. A partition wall is disposed between the first and second screw conveyors. A toner container for accommodating a toner is mounted on the housing. The toner in the toner container is supplied into the housing and agitators agitate the toner in the housing. A first doctor blade regulates the developer carried on the conveyor roller, a second doctor blade regulates the developer on the first developing roller, and scrapers scrape the developer from the second and third developing rollers.
摘要:
The present invention is an electronic apparatus including: an electronic apparatus main body 1; a panel main body that has a first guided component guided by a first guide groove C1 formed in the electronic apparatus main body, and moves in an inclined state with respect to the electronic apparatus main body; and a hold plate 6 that has a second guided portion guided by a second guide groove C2 formed in the electronic apparatus main body, and slidably holds the panel main body. According to the present invention, a mechanism for tilting the panel main body and a mechanism for sliding the panel main body are provided separately from each other, so that the panel main body having an increased weight can be operated smoothly in the inclined state.
摘要:
A vacuum brake booster includes a secured arrangement for securing a flange portion of a control valve element to a cylindrical portion of the power piston so as to prevent relative movement between the flange portion of the control valve element and the power piston. Thereby, the seal surface of the control valve element is not urged toward the valve seat of the power piston by a pressure differential applied to the flange portion. The urging force of a second coil spring arrangement which urges the control valve element to separate from the valve seat in the non-operating condition of the vacuum brake booster is positively decreased without exerting an adverse influence to the control of the braking force of the vacuum brake booster (10). Accordingly, the input load of the vacuum brake booster is decreased and the operational feeling of the braking action is improved.
摘要:
A brake booster includes a body having a central wall portion on which a, doughnut-shaped reinforcement plate is securely mounted, and bolts mounted on the reinforcement plate for fastening a master cylinder to the central wall portion. The reinforcement plate has an annular ridge extending along an inner peripheral edge thereof and projecting against the reinforcement plate. The master cylinder includes a flange mounted on the body and having an inner peripheral portion held against the central wall portion of the body in axial alignment with the annular ridge, and an outer peripheral portion spaced from the central wall portion by a distance such that the outer peripheral portion of the flange will not be forced into contact with the central wall portion when the master cylinder is actuated for braking action. Therefore, no localized forces are applied by the outer peripheral portion of the flange to the central wall portion of the body. The reinforcement plate held in intimate contact with the central wall portion serves to distribute forces fully over the central wall portion, which is less subjected to concentrated stresses and hence can be of a reduced thickness.
摘要:
A tilting apparatus is provided which can make a moving section perform a tilting operation with stability or in which a moving section can exercise its functionality as expected, and an electronic apparatus equipped with the tilting apparatus is provided. In a tilting apparatus, with first and second tilting operations, one side of a first panel holder is angularly displaced with respect to the other side from a reference position. This can prevent the first panel holder from making any extra operation other than the first and second tilting operations with respect to a device body. Unlike any existing technology, in the invention, even when the first and second tilting operations are put into action, a first chassis is not displaced against the device body unless it is desired, e.g., displaced along front, and juts from the device body, thereby favorably leading to the operation with stability.
摘要:
An exemplified object of the present invention is to provide a toner collection device that may effectively, easily and inexpensively utilize a storage space for waste toner. The toner collection device is provided with a displaceable partition in the storage space, and the partition may contact an agitator that may displace the partition.
摘要:
The present invention is directed to a vacuum servo unit, wherein a variable pressure chamber is capable of communicating with the atmosphere through a clearance which is defined between an air valve member slidably mounted on an input member and a seal member provided in a cylindrical member, and wherein the variable pressure chamber is capable of communicating with a constant pressure chamber through a clearance which is defined between a vacuum valve member and a seal portion of a control valve member. Accordingly, when the air is introduced from the clearance between the air valve member and the seal member in the condition where the seal portion of the control valve member is in contact with the vacuum valve member, the control valve member is biased toward the vacuum valve member by the pressure difference between the negative pressure and the atmospheric pressure.
摘要:
A vacuum-operated brake booster comprises an axially movable power piston and a plunger axially movable in a cavity of the power piston. A valve disposed within the cavity cooperates with seats on the plunger and power piston to regulate pressure in a variable pressure chamber. A key serves as a stop to limit travel of the power piston and plunger. The key includes a base portion and a pair of parallel legs which extend into a radial hole of the power piston. The legs straddle and press against the plunger. Elastic retainers are snap-fit onto the ends of the key member. The elastic retainers are wider than the radial hole to retain the key in the hole.
摘要:
A tandem vacuum servo unit includes a movable power piston having a supporting portion and a front movable wall member having a first engaging portion for engaging the movable power piston. The first engaging portion has an input side face that engages the output side face of the supporting portion along a first contacting portion. A rear movable wall member has a second engaging portion whose input side face engages the output side face of the first engaging portion along a second contacting portion. The first contacting portion is spaced radially outwardly of the second contacting portion. This construction of the vacuum servo unit increases the durability of the front movable wall member.
摘要:
An electrophotographic image forming apparatus in which overheating or burning of a heater caused by fabricating units whose specified supply voltages are different from each other is prevented. Power from a main unit is supplied to the heater, which is in a photosensitive drum in a drum unit, for heating the photosensitive drum so as to be maintained at a specified temperature, through a connecter disposed between the main unit and the drum unit. The connecter is comprised of parts which are respectively disposed in different positions, depending on the specified supply voltages. The respective positions of the parts vary, in relation to a reference position, in a direction around the rotation axis of the photosensitive drum which is rotated when the drum unit is installed in the main unit. When the specified supply voltage of the main unit is equal to that of the heater, the parts are fitted to each other, thereby making electrical connection.