Abstract: A noise monitor for transmitting an actual sound (noise) when the noise level becomes higher than a regulation standard. In each noise detecting unit, the level of noise is measured through a microphone and a noise meter and input into a radio set. At the same time, an actual sound as noise is input through a microphone and a microphone amplifier into a PHS. In a noise monitoring unit, a PC communicates with the radio set in each noise detecting unit through a radio set to input the noise level measured by each noise detecting unit. The PC determines whether or not the noise level is higher than a regulation standard. If the noise level is higher than the regulation standard, the PC requests a PHS to call the PHS in the specified noise detecting unit to establish the communication between the PHS and the PHS. At this time, a maintenance worker can hear the actual sound from the PHS. Further, the actual sound is recorded by an MD recorder.

Abstract: The connector checker has a main body with a block accommodating a plurality of detection pins movable forward and backward in the block each for detecting an incorrect insertion state of a terminals which is inserted in a terminal accommodation chamber of a connector by inserting the detection pin into the terminal accommodation chamber. The checker main body has a plurality of through holes vertically elongated in section and a plurality of through holes horizontally elongated in section, and the vertically elongated through holes are disposed to partially overlap with the horizontally elongated through holes to define a plurality of rectangular openings. Through one of the rectangular openings, the detection pin is inserted so as to adequately limit vertical and horizontal movements of the detection pin within the terminal accommodation chamber.

Abstract: In order to ensure whether a first housing and a second housing which constitute a connector are completely engaged with each other, a locking member is provided in the first housing, and a locking arm is provided in the second housing. A lock ensuring member is provided so as to be supported by the locking arm movably in the extending direction of the locking arm between a first position closer to the first housing and a second position farther from the first housing, and such that the locking ensuring member is moved toward the second position when the first housing and the second housing are completely engaged with each other. An engaging operation of the housings is started in a state that the lock ensuring member is placed at the first position. The lock ensuring member is moved toward the first position after the engaging operation is completed.

Abstract: A connector housing is formed with a chamber into which a terminal is inserted. A retention member is formed in the chamber so as to retain the inserted terminal therein. The retention member is formed by a first portion of a mold which molds the housing. An inspection member is formed on an outer face of the housing for inspecting molding defect of the retention member. The inspection member is formed by a second portion of the mold having a higher flow resistance than the first portion of the mold.

Abstract: A thermal expansion valve 100 has a valve chamber in a valve body 110, and controls the flow rate of refrigerant from a condenser and a receiver, and the refrigerant travels to an evaporator through a passage 132. Refrigerant returning from the evaporator transmits the temperature of refrigerant to a heat sensing shaft connecting to a power element portion 36 while traveling through a passage 34. A cover 200 has a head portion 220 and a tapered portion 210, and is mounted to the top portion of the valve body 110. Tapered outer surfaces 212 of the tapered portion of the cover 200 and tapered surfaces 114 of the valve body 110 form approximately identical surfaces. A concave portion 221 of the head portion 220 covers the power element portion 36, and its peak portion forms a curved surface 222.

Abstract: In a structure for connecting a battery terminal to a battery post of a battery, a terminal body has a U-shaped curved portion which is formed between a distal end portion and a proximal end portion of the battery terminal. A retaining portion, at which the distal end portion of the battery terminal is retained, is provided in the vicinity of the battery post. Locking members lock the proximal end portion of the battery terminal in a position where the proximal end portion has been pivoted in a leverage manner while the distal end portion is retained in the retaining portion as a fulcrum, and while the U-shaped curved portion is press-fitted onto an outer periphery of the battery post.

Abstract: A terminal body is made of a conductive, resilient strip extending while forming an annular fitting portion having a first diameter which is smaller than a diameter of a battery post. An operating member is fitted with both end portions of the strip so as to movable between a first position in which the strip is retained such that the annular fitting portion has a second diameter which is larger than the diameter of the battery post, against a restoring force of the resilient strip, and a second position in which the restoring force is released. The battery post is fitted into the annular fitting portion of the terminal body while placing the operating member in the first position. The operating member is placed in the second position, after the terminal body is fitted on the battery post.

Abstract: In a structure for connecting a battery terminal to a battery post of a battery, a terminal body has a U-shaped curved portion which is formed between a distal end portion and a proximal end portion of the battery terminal. A retaining portion, at which the distal end portion of the battery terminal is retained, is provided in the vicinity of the battery post. Locking members lock the proximal end portion of the battery terminal in a position where the proximal end portion has been pivoted in a leverage manner while the distal end portion is retained in the retaining portion as a fulcrum, and while the U-shaped curved portion is press-fitted onto an outer periphery of the battery post.

Abstract: An expansion valve 1 comprises a prism-shaped body 10, and a valve chamber 20 is formed within the body 10. Refrigerant supplied from a compressor flows into the valve chamber through a passage 22, passes between a valve means 42 and a valve seat 23, and travels toward an evaporator through a passage 24. Refrigerant returning from the evaporator enters the body 10 through a passage 26, and after the refrigerant temperature information is transmitted to the operating shaft 40, the refrigerant flows out through a passage 28 toward the compressor. Passages 22 and 28 open to a first side surface of the body, and passages 24 and 26 open to a second side surface orthogonal to the first surface. Such structure improves the degree of freedom for mounting the expansion valve 1.

Abstract: There is disclosed a Stirling cycle refrigerator in which oil rising is prevented, and an adverse influence onto oil sealing bellows by a pressure rise accompanying the temperature rise of the crank chamber is prevented. The oil sealing bellows are disposed between a space in a housing and compression and expansion cylinders, and a buffer tank provided with the pressure adjusting bellows is disposed between a space on the back surface side of the compression and expansion pistons and the space in the housing, so that the pressure rise in the housing and the pressure fluctuation of the space are absorbed.

Abstract: The connector checker has a main body with a block accommodating a plurality of detection pins movable forward and backward in the block each for detecting an incorrect insertion state of a terminals which is inserted in a terminal accommodation chamber of a connector by inserting the detection pin into the terminal accommodation chamber. The checker main body has a plurality of through holes vertically elongated in section and a plurality of through holes horizontally elongated in section, and the vertically elongated through holes are disposed to partially overlap with the horizontally elongated through holes to define a plurality of rectangular openings. Through one of the rectangular openings, the detection pin is inserted so as to adequately limit vertical and horizontal movements of the detection pin within the terminal accommodation chamber.

Abstract: The invention provides a thermal expansion valve for a car air conditioner, which prevents a hunting phenomenon. The thermal expansion valve is provided with a refrigerant passage from an evaporator toward a compressor formed in an inner portion thereof and a temperature sensing and pressure transmitting member having a heat sensing function and forming a hollow portion in an inner portion thereof, which is installed in the passage.

Abstract: A fin structure for cooling cold-heat refrigerant and another fin structure (slender grooves or the like) constituting a working gas flow passage are formed on the outer and inner surfaces of the heat exchange housing constituting a low-temperature heat exchanger by a lost was casting method so that these fin structures are formed integrally with the heat exchange housing. In addition, a fin structure and another fin structure constituting a working gas flow passage are integrally formed on the outer and inner surfaces of a high-temperature side heat exchanger (heat rejector). Accordingly, the heat exchangers of a Stirling machine can be manufactured in a simple structure by the lost wax casting method, whereby the workability can be enhanced and the manufacturing cost can be reduced. In addition, the precision for the workability can be enhanced, and the heat exchange efficiency and the reliability can be enhanced.

Abstract: In a connector examination instrument, a connector support member and an examination instrument body are provided for movement toward and away from each other, and examination pins are slidably mounted within the examination instrument body, and are spring biased toward the connector support member. Each of the examination pins includes a conducting contact surface for contact with an associated metal terminal within a connector, and an incomplete insertion-detecting projection for insertion into a flexure space for an elastic retaining piece portion for retaining the metal terminal. Each of the examination pins comprises a shank, having an exposed distal end serving as the conducting contact surface, and an insulative shaped member which is fixedly secured to the distal end portion of the shank, and has the incomplete insertion-detecting projection.

Abstract: A Stirling refrigerating system comprising a freezing chamber, a Stirling refrigerator, and a heat carrying means including a pipe arrangement thermally connected to a cooling portion of the Stirling refrigerator so as to carry low temperature heat of the cooling portion to the freezing chamber by means of a refrigerant, wherein when the Stirling refrigerator is driven, the refrigerant circulates in the freezing chamber and the cooling portion through the pipe arrangement. Thus, it is possible to obtain a Stirling refrigerating system in which not only it can cope with the current flon regulation but also it can use ethyl alcohol or the like as a refrigerant other than HCFC or HFC which may be subjected to legal regulation in the future, and it can increase the refrigerating capacity and improve the coefficient of performance in comparison with the existing system.

Abstract: A connector structure, having a short-circuiting member, includes a housing, terminal receiving chambers formed in the housing, a short-circuiting member receiving chamber communicating with the terminal receiving chambers, the short-circuiting member having resilient contact plate portions formed thereon, the short-circuiting member being received in the short-circuiting member receiving chamber, so that the contact plate portions project respectively into the terminal receiving chambers to be press-contacted respectively with terminals mounted respectively in the terminal receiving chambers, and a contact plate portion urging unit urging the contact plate portions against a resilient force thereof to thereby limit an amount of projection of the contact plate portions into the terminal receiving chambers to a predetermined value.

Abstract: A printed circuit board connector including a housing to be fitted to a mating connector, and a plurality of conductive terminals having one end portions projecting into the interior of the housing so as to be connected to the mating connector, and the other end portions projecting outwardly from the housing. Alignment correction ribs are formed integrally on an outer surface of the housing in corresponding relation to the conductive terminals, and an alignment correction guide groove for fittingly receiving the associated conductive terminal is formed between any two adjacent ones of the alignment correction ribs. Each of the conductive terminals is bent in a direction of mounting on a printed circuit board when fitting it into the alignment correction guide groove.

Abstract: For a circuit board connector comprising a connector housing, and connecting terminals which are bent at right angles and led out of the connector housing, a terminal arranging board is provided which includes: a terminal arranging section having a plurality of terminal inserting holes; and a lock arm section having a pair of flexible engaging pieces which are extended from the front end of the terminal arranging section in such a manner as to confront with each other. The outer side portion of at least one of the engaging pieces of the lock arm section is formed into an expanded portion having a tapered surface. The distance between the outer side faces of the engaging pieces is larger than the width of an engaging recess formed in the connector housing.

Abstract: A partial-fitting prevention connector which can be positively fitted relative to a mating connector, and is prevented from being only partially fitted relative to the mating connector. When the partial-fitting prevention connector (1) is fitted relative to a mating connector (2), a retaining member (25), formed on a lock member (22), abuts against a retaining projection (34) formed on the mating connector (2), and the lock member (22) is pushed against the bias of a spring (23) in a rearward direction away from the mating connector. After the lock member has moved a predetermined distance, lock release projections (26a and 26b), formed on the lock member (22), slide over lock release projections (42a and 42b) formed on a support structure (41), thereby pivotally moving the lock member (22).