Abstract: A compound machine tool, for alternately carrying out a machining process and a laser-beam process, which can subsequently carry out the laser beam process on the variable inclined surfaces of a workpiece having a complex three-dimensional shape, without changing the position of the workpiece, is provided. A laser beam processing arbor (44) of this compound machine tool (10) includes an attaching section (54) closely fitted to a tool supporting section (40) of a spindle (28), a joint part (62) rotatably supported on the attaching section (54), and a discharging section (68) pivotably joined to the joint part (62) through a shaft (66). The attaching section (54) and the joint part (62) include a first passage (64) axially passing therethrough, and the discharging section (68) includes a second passage (70) axially passing therethrough. A lens (72) for condensing a laser beam is fixedly arranged in the second passage (70) of the discharging section (68).

Abstract: A lens barrel includes a vibrating motor which serves as a driving source, a rotating member driven by the vibrating motor, a bearing mechanism for rotatably supporting the rotating member, and a urging member for urging the rotating member and the roller in a direction in which they make contact with each other. The bearing mechanism includes a roller having an axis which lies in a radial direction of an axis of the vibrating motor.

Abstract: A pressure force adjusting mechanism for a vibration wave driven motor for applying a predetermined pressure force for frictionally driving an annular elastic member in which a travelling vibration wave is formed relative to a movable member is provided with a fixed support member for supporting the elastic member so as to have a degree of freedom in the axial direction thereof, a pressing member for pressing the elastic member from the axial rear thereof toward the movable member, and a holding member receiving the reaction force of the pressing member and fixedly fitted to the fixed support member. The holding member and the fixed support member are fixed by a projected portion which is formed on the holding member being engaged with the bayonet type engagement portion of the fixed support member. The engagement portion has its pressure force holding engagement surface against which the projected portion bears formed into an inclined surface inclined with respect to the axial direction.

Abstract: A telescopic cover apparatus, which is mounted on a machine tool, includes a telescopic cover, including first to seventh cover members slidably fitted with one another, and a pantogragh drive mechanism including first to sixth parallelogrammatic link mechanisms continuously arranged in the cover extension/contraction direction. Each link mechanism includes first to fourth link members and first to fourth joints for pivotally coupling the link ends to one another.

Abstract: An automatic tool exchanging device for a machine tool, comprising a stopper block (5, 5') attached to a magazine supporting member (2) supporting a magazine (1) at the lower end thereof and capable of swinging to the front and rear, and pulled by an elastic member (8) having one end connected to the upper end of the magazine supporting member (2). Upon arrival of the magazine (1) at a standby position from a tool exchanging position, a stopper (4, 4', 11) is engaged with the stopper block (5, 5') to prevent vibration of the magazine (1). A desired tool among various tools stored in the turret magazine is selected automatically and automatically exchanged for a tool on the machine tool.

Abstract: A motor-driven type exposure adjusting device, such as a diaphragm-shutter device, adapted for a lens incorporating camera, an interchangeable lens, or the like. In the adjusting device, a rotary member has an optical path hole formed in a central portion thereof and is arranged to control the opening and closing actions of a plurality of light shielding blades. A stepping motor servers as a drive source for the rotation of the roatary member and is disposed outside of the optical path hole, and an aperture position detecting means detects a boundary between a given maximum aperture position defined by the light shielding blades and a stopped-down aperture position of the optical path hole. The aperture position of the optical path hole is detected through the rotating angle position of a rotary wheel to which the rotation output of the rotor shaft of the stepping motor is transmitted.

Abstract: A lens barrel includes a stationary tube secured to the inner side of a stationary lens barrel member with a given space kept between them, and a motor disposed within the space. A helicoidal surface is arranged along the inner circumference of the stationary tube to be in screwed engagement with the helicoidal surface of a lens-carrying frame arranged to carry lenses which are shiftable in the direction of their optic axis, and a connecting member extends to the inner circumference of the stationary tube to cause the rotation of a rotary tube which has a toothed part engaging the output gear of the motor to be transmitted to the lens-carrying frame.

Abstract: A built-in motorized lens mounting includes a fixed tube, a zoom actuating ring axially movably supported relative to the fixed tube, a focusing lens holder movably supported at least in the axial direction relative to the zoom actuating ring, an electric motor fixedly secured to the zoom actuating ring, and a driving power transmitting system using the rotation of the motor as a drive source to move the lens holder axially relative to the zoom actuating ring.

Abstract: Adjustment apparatus for a lens barrel comprises a built-in driving motor; an output gear which is arranged with have its rotation shaft parallel to the optical axis of the lens barrel and to transmit the rotation of the driving motor; a lens driving device which has a transmission gear engaging the output gear and is arranged to shift the lens of the lens barrel in the optical axis direction by using the rotation of the driving motor as a drive source; and an adjustment cam ring which has a tapered cam part and is rotatable around the optical axis. The tapered cam part abuts on the rotation shaft of the output gear. Back-lash adjustment between the output gear and the transmission gear can be accomplished by moving the position of the output gear by rotating the cam ring around the optical axis.

Abstract: A lens barrel includes a hollow rotary ring rotatable about the optic axis which is disposed within the hollow of a hollow fixed cylinder with a bearing interposed therebetween, a moving cylinder movable in response to rotation of the rotary ring which is disposed within the hollow of the rotary ring, a vibration wave motor which is disposed between the diametrical directions of the fixed cylinder and the rotary ring, and a rotor which is substantially secured to the rotary ring.

Abstract: A group education system including a first memory for storing an original sentence group, a second memory for storing a starting address, an end address of a sentence block of an original sentence group stored in the first memory, a control circuit for controlling the selection of a playback mode and the reading order of the sentence blocks of the original sentence group stored in the first memory and the change of the pause times thereof and a third memory for storing the reading order, the starting address, the end address and the altered pause times of the selected sentence block under the control of the control circuit. Accordingly, it becomes possible to form with ease a sentence group in which the playback mode and the reproducing order of the selected sentence block are selected and the pause times between the sentence blocks are changed.

Abstract: A lens barrel includes a stationary tube secured to the inner side of a stationary lens barrel member with a given space kept between them, and a motor disposed within the space. A helicoidal surface is arranged along the inner circumference of the stationary tube to be in screwed engagement with the helicoidal surface of a lens-carrying frame arranged to carry lenses which are shiftable in the direction of their optic axis, and a connecting member extends to the inner circumference of the stationary tube to cause the rotation of a rotary tube which has a toothed part engaging the output gear of the motor to be transmitted to the lens-carrying frame.

Abstract: An electromagnetic drive device for a focal plane shutter having a tubular yoke and a cylindrical permanent magnet concentrically fixed to the yoke by clamping apparatus. A moving coil in a space between the permanent magnet cylinder and the yoke rotates about the axis of the permanent magnet and is drivingly connected through a shaft to blades of a leading or trailing curtain of the shutter, wherein a pair of holes are formed in one of the end surfaces of the permanent magnet cylinder symmetrical with respect to the axis thereof. The running characteristic of the shutter blades can be adjusted when the distribution of magnetic flux density is previously adjusted by turning the permanent magnet with the use of a tool engaged in the holes.

Abstract: A mechanically controlled shutter with a latch for holding the closing curtain in a charged position arranged upon running off of the opening curtain to start operation which then terminates at running off of the closing curtain to control the shutter time, wherein there is provided a keeper for holding the closing curtain latch in the charged position independently of the closing curtain latch, whereby after actuation of a camera release operation and before the opening curtain runs off, the keeper is actuated to release out of holding connection with the closing curtain.

Abstract: A light shading device for a camera in which a soft and elastic light shading curtain has a base part which is fixed on a flat support surface, in the region of the shutter running path. The free end of the shading curtain is brought into elastic contact with the shutter curtain by way of a step provided on the support, the step serving to incline the free end of the light shading curtain with respect to the support surface.

Abstract: The disclosed camera includes a viewfinder which displays a display member representing a preset aperture value in its view field, and is capable of operating in open aperture and stopped down aperture manual exposure modes as well as a shutter priority automatic exposure control mode. A retracting arrangement retracts the display member from the view field in response to a shift either to the stopped down or the shutter priority automatic exposure control mode.

Abstract: A heating apparatus, such as an electric oven or a microwave oven, comprises an enclosure case having therein a heating chamber to place a heating object therein, the enclosure case having a door at an opening of the chamber, and the door having a locking means, to lock the door when closed, and has a door lock releasing means, such as a lever and a solenoid planger, to release and open the door from the locking state of the locking means,a voice recognition circuit for recognizing voice commands of a user of the apparatus and produces at least a control signal, which drives the releasing means to open the door.

Abstract: The disclosed camera ordinarily uses an electromagnetic release device. A supplemental mechanical release device is enabled only when the electromagnetic release device's battery is absent from the battery case. The release operation is then carried out by the mechanical release device.

Abstract: A fixing member having a screw part to be attached to the cable release mounting screw hole of a release button of a camera and a cover member made of an elastic material are unified into one body and are arranged to be attachable to and detachable from the cable release mounting part of the release button.

Abstract: A device for releasing shutter hold particularly for a single lens reflex camera including a shutter hold release device having a release mechanism for releasing the shutter hold wherein the driving power for the release mechanism is charged into the release mechanism in operative engagement of the charge of mirror driving power in a mirror driving mechanism of the device.