Abstract: A cable connecting device is disclosed for detachably, electrically connecting a flexible cable protected by a flexible electric wire tube to a wiring in a component movable within a predetermined scope.

Abstract: In a linear scale type displacement measuring instrument including: a case fixed to one of relatively movable members; a main scale; a carriage; index scales and a detector; the carriage and the other of the relatively movable members are connected to each other through a connecting mechanism, one end of which is connected to the carriage, the other end of which is connected to the other of the relatively movable members in a location where a section standard length of the main scale is maintained as it is when the main scale is straight, i.e. within the neutral planes of the case as a whole including the main scale mounted, and capable of permitting the carriage to change the posture thereof such that the index scales can be held in a state of perpendicularly intersecting the normal line of the surface of a warp of the main scale.

Abstract: This disclosure depicts a drivably connecting construction in a measuring instrument for connecting a main body of measuring instrument to a nut member threadably coupled to a feed screwshaft, including:a first engaging device (28) in which a connecting plate (24) is loosely coupled onto a nut member (21) and this connecting plate (24) is clamped from opposite sides in the feeding direction through balls (25); a second engaging device (39) for tiltably connecting a portion of the connecting plate (24) to the side (14) of the main body of measuring instrument; and a third engaging device (48) for clamping an arm (41) protruded from the nut member (21) through balls (45) to thereby make the nut member (21) unrotatable relative to the main body of measuring instrument.

Abstract: A digital display measuring apparatus including a probe which is movably installed to the body and is brought in contact with an object to be measured, an encoder which converts the displacing amount of the probe into electric signal pulse to output therefrom, a presetting device which establishes a measuring standard value in accordance with the object to be measured, a counter which counts the preset value and the electric signal pulses, and a digital display unit which displays in digital representation the measured value of the object with the basis of the counted value, wherein the presetting device comprises the preset switch which is operated at the time of establishing the preset value, and the preset memory in which an optional numerical value displayed on the digital display unit is established as the preset value by the operation of the preset switch, and displays in digital representation the measured value of the object on the digital display unit with the basis of this preset value.

Abstract: A supervisory device of a varying quantity measuring apparatus including a main scale and an index scale which are moved relative to each other in accordance with a physical varying quantity, a main power supply circuit which outputs a predetermined DC stabilized voltage by operating a power switch, and an encoder which is driven by the voltage output from the main power supply circuit and converts the relative movement of said both scales into electric signals to be displayed.

Abstract: A digital display measuring system includes a movable and stationary members between which an object to be measured is located, these members respectively supporting transmitter and receiver electrodes which define a variable capacitor having its electrostatic capacity which is adapted to change as the movable member is displaced relative to the stationary member. The change of electrostatic capacity is detected and converted into an electrical signal which is digitally indicated on a display to show the mechanical displacement of the movable member.

Abstract: A system for finely feeding a movable member being movable relative to a stationary member.This fine feed system is constructed such that the movable member is provided with a fine feed mechanism, which includes a screwshaft and a nut member threadably coupled to the screwshaft and capable of being suitably clamped against the stationary member. A control device is provided for causing a driving motor to drive the screwshaft on condition that a detector to regulate the relatively movable range between the screwshaft and the nut member is not in operation, while, for causing the driving motor to operate so that the screwshaft and the nut member can return to original relative positions, on condition that the nut member is not clamped against the stationary member. The fine feed of the movable member can be instantaneously performed no matter where the movable member may be in its movable range.

Abstract: This disclosure depicts a linear scale type displacement measuring device wherein the measuring device comprises a frame member connected to one of two bodies to be measured, a main scale held on the frame member and an index scale connected to the other of the two bodies, and a relative displacement between the two bodies is measured from a relative movement between the main scale and the index scale. A main scale holding member having two guide surfaces corresponding to two surfaces intersecting each other of the main scale is bondedly fixed at a predetermined pitch to the frame member in its longitudinal direction, and the main scale is bondedly fixed to the main scale holding member in a state of being urged against the guide surfaces of the main scale holding member by urging means utilizing a main scale engaging portion separately provided or formed on the main scale holding member itself.

Abstract: This disclosure depicts a clamp device in a measuring instrument wherein a slider having a detecting portion is clamped to a guide member, comprising: a holder provided on the slider and penetrated therethrough with the guide member; a movable block received in the holder and having a through-hole, through which the guide member extends; a screw member threadably coupled into the movable block; and a rotation locking mechanism for locking the movable block. Rotation of the screw member causes the forward end face thereof to contact the guide member, so that the slider can be clamped.

Abstract: A coordinate measuring instrument in which a touch signal probe is brought into contact with a workpiece to be measured and a contour of the workpiece is measured in response to an electric signal on the basis of the aforesaid contact.The touch signal probe used in this measuring instrument comprises a first member held on a main body of the probe and a second member rotatably provided on the first member and having a contact member. The second member has a forward end constantly positioned on the rotary axis of the second member irrespective of any position of rotation of the second member.

Abstract: This invention relates to a digital indication type dimension measuring instrument provided with a shock absorbing mechanism for controlling an overspeed of a spindle. The shock absorbing mechanism is provided with a pressure adjusting device which comprises a valve chamber having a communication hole communicated with a pressure chamber in a cylinder, an open hole communicated with the atmosphere and a ball valve for suitably opening or blocking the communication hole. When the spindle is inclined to a predetermined angle of inclination or more, the ball valve opens the communication hole to release a pressure fluid in the cylinder to the atmosphere.

Abstract: The present invention relates to a construction of a control switch for use in measuring instruments of various types, such as digital indication type slide calipers. A link member is pivotally supported and pivoting thereof is effected by a movement of a control button. The link member is interposed between a switch portion for effecting the electrical connection or disconnection and the control button, which control button is provided in a side wall of a case body disposed for movement in a direction perpendicular to the working direction of the switch portion, and, when the link member is pivoted by movement of the control button, the electrical connection or disconnection can be effected.

Abstract: The present invention relates to a measuring instrument, and this measuring instrument comprises a main frame for axially movably supporting a spindle, a first tubular member having loosely inserted thereinto an engageable member projected from the spindle so as to axially move the spindle, a second tubular member coupled onto the first tubular member and having an elongate groove having inserted thereinto the engageable member, an outer tube coupled onto the second tubular member hand having a spiral groove engaging the forward end of the engageable member and a displacement value detector for detecting a displacement value of the spindle in the axial direction thereof, and the spindle is made linearly movable through the rotation of the outer tube.

Abstract: A two-directional touch sensor for use in a height gauge, other measuring instruments or the like, wherein an abutting contact with a workpiece (W) to be measured is detectable in two directions opposed to each other at 180.degree.. The main body (1) of sensor has a probe shaft (13) rotatably supported by the main body (1) and provided at one end with a spherical measuring element (18) and at the other end with a contacting element (20). When an abutting point (18A) or (18B) of the measuring element (18) being in abutting contact with the workpiece (W) is aligned with a neutral axis (M), the contacting element (20) comes into contact with either one of electric contact points (54B) and (54A) to emit a touch signal.

Abstract: An edge detector in an optical measuring instrument, for detecting a transmitted light or reflected light to directly or indirectly measure dimensions of an object being measured, comprising:a sensor including four light receiving elements provided on a plane substantially in parallel with a plane of relative movement between the sensor and said object being measured, whereby at least two sets of phase shift signals are generated in accordance with brightness and darkness generated during said relative movement; a first and a second operational means for calculating differences between the sets of said phase shift signals; a third operational means for calculating a difference between output signals emitted from said first and second operational means and a fourth operational means for calculating a sum of said output signals; and a detecting means for emitting a crossing signal when an output signal from said third operational means is on a reference level, and when an output signal from said fourth operatio

Abstract: The present invention relates to a dial indication type measuring instrument in which a shift in position of a needle can be easily corrected.A driving pinion for driving the needle is biased by a spring provided on a dial indicating portion to be normally meshingly engaged with a rack provided in a main scale. Movably inserted through and held in a slider is a releasing pin, the forward end of which is engaged with said driving pinion. When this releasing pin is pushed in or pulled out, the driving pinion can be released from the rack against the biasing force of the spring, and, when the slider is moved in the above-described state, a shift in position of the needle can be corrected.

Abstract: A micrometer wherein two or more spindles are disposed on one and the same axis, a spindle in contact with a workpiece to be measured is made unrotatable and a thimble is reduced in diameter.This micrometer comprising a main body (1, 101), a first spindle (15) threadably coupled to the main body and integrally rotatably connected to the thimble (17) and a second spindle (46, 146) connected to the first spindle (15) through a connecting mechanism (70, 150), the connecting mechanism (70, 150) including a contact member (61, 161) and a bearing (53, 153) for transmitting only the axial movement of the first spindle (15) to the second spindle (46, 146).

Abstract: This invention relates to measuring instruments such as a three-dimensional measuring instrument having a device for protecting the surface of a scale provided on a guide rail for moving a measuring element support member.A scale (7) secured to one side surface of one of guide rails provided at opposite side surfaces of a bedplate (1), on which a work (18) to be measured is rested, is covered by a pair of a constant load spring.

Abstract: A thread construction of a length measuring instrument wherein a spindle is provided by forming out of a ceramic material an externally threaded portion on the outer peripheral surface thereof. A plurality of externally threaded pieces are cut from an externally threaded member made of a material identical with and having a pitch equal to the externally threaded portion of the spindle and fixedly secured to the inner peripheral surface of a sleeve opposed to the externally threaded portion to thereby make the spindle be of a screw feed type, and the manufacturing method therefor.

Abstract: In a displacement measuring instrument comprising a main scale secured to a first member, and an index scale secured to a second member and reciprocatingly movable together with this second member along the main scale whereby a relative movement between the first and the second members is measured from a relative movement between the main and the index scales, there are provided a highly rigid member rotatably engaged at one end thereof with the second member and at the other end thereof with the index scale whereby the second member and the index scale are connected to each other, and a biasing means loaded between the second member and the highly rigid member for urging the index scale against the main scale.