Abstract: A noncontact form measuring apparatus emits a laser beam L. In the apparatus, a prism bends the laser beam into an X-axis direction, so that a Z-axis displacement of an objective optical system is converted by the prism into an X-axis displacement on a measurement coordinate system. A movement of an X-axis stage is converted into a Z-axis displacement on the measurement coordinate system. The apparatus moves an internal gear as a measurement object and the prism, reads X, Y, and Z coordinates at each focal point, and measures a three-dimensional form of inner teeth of the internal gear. The apparatus may translate the internal gear in a Y-axis direction, to measure a partial form of the inner teeth. The apparatus may turn the internal gear in an angular ?-direction, to measure a whole circumferential form of the inner teeth.

Abstract: A surgical microscope system is disclosed. The surgical microscope is comprised of a stand which is comprised of a movable base and a support capable of free motion with keeping a particular orientation relative to the movable base; a stereoscopic surgical microscope linked with the support, which is comprised of a pair of first optical systems so as to provide a first stereoscopic magnified view; and a stereoscopic display device having a movable link with the stand, which is comprised of a display screen for displaying stereoscopic image taken by the first optical systems and a pair of second optical systems as to show the stereoscopic image as a second stereoscopic magnified view.

Abstract: An object of the present invention is to provide an electric screwdriver device having a function for determining that a correct tightening operation has been carried out when the tightening operation has taken a time longer than a reference time predetermined for the tightening operation, characterized in comprising a novel means for determining the reference time.

Abstract: A mouth switch is provided for a multifunction operation microscope (1). Signals to be outputted to the operation microscope can be switched from one provided when only a long main lever (21) is held with a mouth (lips, teeth, and the like) to another provided when a sub-lever (25) is held together with the main lever. Even if the number of functions to control increases, the mouth switch can cope with them. The mouth switch can change signals through the simple operation of holding the levers with a mouth, and therefore, possibility of an operation error can be reduced. As a changeover switch (22) is OFF, the mouth switch provides four kinds of signals including focus-up, focus-down, zoom-in, and zoom-out signals, and as for ON state, other four kinds of signals relating to X(+) direction, X(?) direction, Y(+) direction, and Y(?) direction for shifting field of view are provided.

Abstract: A wave spring, in which a multiply annularly wound spring comprises a wave portion in which peaks and troughs are alternately formed in a winding peripheral direction and a ring-like mounting portion that is substantially flat in the winding peripheral direction, with an inner periphery or an outer periphery of the mounting portion being mounted upon engaging with an outer periphery or an inner periphery of an member to be mounted, wherein the outer periphery or the inner periphery of the mounting portion is provided with an engaging urging portion which enables engagement through elastic contact with respect to a radial direction.

Abstract: A power screwdriver (10) includes a bit holder (14) bored to receive the shaft of a screwdriver bit (12) and adapted to securely hold the screwdriver bit (12) in place, and a housing (18) having a through cavity (16). The bit holder (14) is inserted into the through cavity (16) so that the bit holder (14) is rotatable about and movable along the axis of the bit holder. This arrangement securely holds the screwdriver bit and thus, minimize rattling of the screwdriver bit during rotation.

Abstract: The medical stands is used to support a medical tool and includes a first parallel linkage to maintain weight balance of the medical tool. The torque transmitting mechanism maintains an attitude of the medical tool and includes a second parallel linkage whose one end is fixed to a body of the medical stand, a connecting element, and a third parallel linkage connected through the connecting element to the second parallel linkage. Links that form the second parallel linkage are made of rigid material. A vibration suppressing mechanism is attached to a longitudinal link of the first parallel linkage and is always resiliently in contact with a longitudinal link of the second parallel linkage.

Abstract: An object of the present invention is to provide a plug/socket assembly in which the plug will never pull out of the socket even if an excessive pull-out force is applied to the plug. A plug/socket assembly (10) comprises a plug (20) and a socket (30) for receiving and fixing the plug (20) therein. The socket (30) includes a socket main body (31) having a plug insertion hole (311), balls (32) which are provided with the socket main body (31) in a radially displaceable manner with respect to the plug insertion hole (311), a sleeve (33) which is mounted over the outer surface of the socket main body (31) and is displaceable along the axial direction of the plug insertion hole (311), and a compression spring (34) for urging the sleeve (33) along the axial direction toward the inlet port (313) of the plug insertion hole. The inner surface of the sleeve is provided with a slide surface (332). The slide surface has first to fourth regions (P1-P4).

Abstract: A stereomicroscope includes a microscope main body and a camera for assistant. The microscope main body includes therein an objective optical system, a zoom optical system and an eyepiece optical system. The camera for assistant is detachably mounted to the microscope main body. The microscope main body provides to a main operator a pair of optical images including a certain binocular disparity as viewed from an observation direction of the main operator. The camera for assistant provides to an assistant a pair of electron images including a certain binocular disparity as viewed from an observation direction of the assistant. The observation directions of the main operator and the assistant cross at a certain angle. The camera for assistant outputs the pair of electron images into a stereo viewer which is separated from the microscope main body.

Abstract: A male coupling member is provided that is selectively couplable to a first female coupling member (for 25 MPa, for example) and a second female coupling member (for 90 MPa), which handle different fluid pressures. When the male coupling member is coupled to the first female coupling member, a second O-ring that is provided for the second female coupling member is prevented from being displaced by the fluid supplied from the first female coupling member. A through-hole (70) is provided therein with an O-ring retaining member (82) that is displaceable between an advance position (FIG. 3) where the O-ring retaining member is positioned radially inside the second O-ring (78) to prevent the second O-ring (78) from being displaced by the fluid flowing from the first female coupling member (20?) through the through-hole when the male coupling member is coupled to the first female coupling member (20?), and a retract position (FIG.

Abstract: The present invention provides a slide type guide mechanism in which an adjusting screw member for eliminating looseness can be automatically tightened. The slide type guide mechanism includes a guide 22 which is provided with a guide groove 30 having a first guide side surface 26 and a second guide side surface 28 extending along straight lines parallel to each other, a threaded hole extending from an outer side surface of the guide toward the guide groove through the first guide side surface 26, a slide 24 which is guided by the guide groove, a screw member threadably engaged in the threaded hole and rotated so as to urge the slide in a direction from the first guide side surface toward the second guide side surface of the guide groove, a torque applying device 54 having a spring for applying to the screw member a torque by which the screw member is rotated so as to move toward the guide groove.

Abstract: A coupling has a socket and a plug that is inserted into and connected to the socket. The socket has a locking element and a sleeve actuating element that are radially displaceable to lock the plug as inserted into the socket. A sleeve is provided over the outer peripheral surface of the socket. The inner peripheral surface of the sleeve has a locking surface that presses the locking element from the radially outer side into a lock position. Further, the inner peripheral surface of the sleeve has an inclined surface extending in the circumferential direction thereof. As the plug is progressively inserted into the socket, the sleeve actuating element is pushed radially outward by the plug while engaging the inclined surface, causing the sleeve to be displaced in the circumferential direction. Thus, the inclined surface radially aligns with the locking element, and the locking element is pushed radially outward while engaging the inclined surface by the plug inserted progressively.

Abstract: A pipe coupling is provided that facilitates an operation of opening or closing a ball valve and suppresses damage to a cylindrical seal member by the ball valve when rotated, thereby enabling an improvement in durability. A socket fluid passage (4) in a socket (1) is opened or closed with a ball valve (5). A cylindrical seal member (11) is disposed in a primary fluid passage portion (4a) of the socket fluid passage (4) in such a manner as to be in pressure contact with the ball valve (5) to seal between the ball valve (5) and the inner wall of the socket fluid passage (4). The ball valve (5) is rotatable to open when the socket (1) and a plug (2) are locked to each other by a lock mechanism (16).

Abstract: There is provided a valve holding member for holding a valve of a pipe coupling. The valve holding member includes a hub part 33 having a guide hole 34 for a valve stem, two arm parts 32 diametrically opposing each other on the peripheral edge of the hub part, and spring holding parts 31 formed at the peripheral edge.

Abstract: A seal ring of an on-off valve of a pipe coupling is prevented from separating from the on-off valve even when a fluid flows at high speed around the seal ring. When an on-off valve 26 is in the closed position, a seal ring 50 is sealingly engaged under pressure with an annular valve seat surface 34. A forward annular valve surface portion 52 located forward of the seal ring and a rear annular valve surface portion 54 at the rear of the seal ring respectively have a forward annular passage limiting portion 56 and a rear annular passage limiting portion 58 that are adapted to be in contact with or close proximity to the annular valve seat surface. During the period from when the on-off valve starts to move from the closed position (FIG. 4) toward the open position (FIG.

Abstract: A magnetic armature is attracted and driven by a magnetic force which is intermittently generated between magnetic poles, and a piston reciprocated by being pushed back by a coil spring is not rotated by the coil spring. When the magnetic armature (28) as attracted between the magnetic pole members (10,12) by the magnetic force comes to a predetermined rotational angle position about the axis, the armature receives a rotational torque that is derived from the magnetic force and acts in a direction opposite to that of the rotational torque applied by a coil spring (30), thereby preventing the armature from being rotated in the predetermined direction. More specifically, the armature (28) has a circular cross-section as a whole and has a chamfered part (28?) parallel to the axis. When the chamfered part enters between the magnetic pole members, the armature receives a rotational torque that is derived from the magnetic force.

Abstract: A mouth switch is provided for a multifunction operation microscope (1). Signals to be outputted to the operation microscope can be switched from one provided when only a long main lever (21) is held with a mouth (lips, teeth, and the like) to another provided when a sub-lever (25) is held together with the main lever. Even if the number of functions to control increases, the mouth switch can cope with them. The mouth switch can change signals through the simple operation of holding the levers with a mouth, and therefore, possibility of an operation error can be reduced. As a changeover switch (22) is OFF, the mouth switch provides four kinds of signals including focus-up, focus-down, zoom-in, and zoom-out signals, and as for ON state, other four kinds of signals relating to X(+) direction, X(?) direction, Y(+) direction, and Y(?) direction for shifting field of view are provided.

Abstract: A female coupling member is provided for a pipe coupling that handles a high-pressure fluid. The female coupling member has collet-type locking members capable of correctly connecting the female coupling member and the associated male coupling member. The male coupling member receiving portion 22 has an inward inner surface 35-2 that slidingly engages a forward end outer peripheral surface 12-2 of the male coupling member 12 when the male coupling member 12 is inserted into the male coupling member receiving portion 22 and before as the male coupling member 12 reaches a position where the engaging portion 12-1 of the male coupling member 12 is engaged by the latch portions 32-1 of the locking members 32.