Abstract: Leading end sides of a plurality of wires to be electrically connected with each other are respectively inserted through a plurality of through holes formed in a waterproof rubber lid and the outer circumferential surfaces of insulating coatings of the respective wires are held in close contact with the inner circumferential surfaces of the respective through holes for sealing. The insulating coatings are peeled off at the passed-through ends of the wires to expose cores. The exposed cores are welded, fusion-bonded, soldered or fastened by a crimping terminal to form a terminal joint section. The terminal joint section is inserted into a protection cap made of a bottomed resin molding through an opening end. The waterproof rubber lid is fitted to an opening end of the protection cap to seal the interior of the protection cap accommodating the terminal joint section without injecting a waterproofing agent into the protection cap.

Abstract: A water stop structure is provided for a wire harness connected to an electronic control unit installed in an automotive vehicle or a motorcycle. Terminals mounted on ends of wires constituting the wire harness are inserted and locked for connection in a unit connecting connector to be mated with a connector of the electronic control unit, each wire connected to the unit connecting connector includes a water stop section at a position very close to the connector, and the water stop section is formed by filling a waterproofing agent into clearances between strands of a core exposed part formed by removing an insulation coating covering the core of each wire and coating the core exposed part with a waterproof member.

Abstract: A waterproofing method is provided for a wire to be arranged in a water susceptible area of a vehicle. An insulating coating layer is removed in a lengthwise intermediate part of the wire to expose a core. A heat shrinkable tube with an inner layer made of a hot-melt waterproofing agent is mounted on the exposed core section and parts of the insulating coating layer adjacent to the exposed core section and heated. As a result, the hot-melt waterproofing agent of the inner layer is melted and infiltrates into clearances between strands of the exposed core section. In addition, negative pressure is introduced into the inside of the insulating coating layer from an end of the wire, thereby sucking the waterproofing agent into the inside of the insulating coating layer to infiltrate the waterproofing agent also between the strands of the core inside the insulating coating layer.

Abstract: A wire harness is divided in an arrangement direction, and terminals are connected to ends of wires of the divided wire harnesses and respectively mounted into first and second connectors. An intermediate connector is provided which includes a first connector fitting portion and a second connector fitting portion, into which the first and second connectors respectively are fit, and a partition wall is disposed between the first and second connector fitting portions. Intermediate terminals are inserted through the partition wall of the intermediate connector and electrical contact portions at both ends of the respective intermediate terminals project into the first and second connector fitting portions. A waterproofing agent is filled in a part of one or both of the first and second connector fitting portions in contact with the partition wall to embed parts of the intermediate terminals except the electrical contact portions therein.

Abstract: A housing (11) of a waterproof connector (10) is formed with terminal accommodating chambers (12) arranged in rows one above another and columns. A rubber sheet (20) for sealing is arranged at a terminal insertion surface side of the housing (11) and has wire insertion holes (24) corresponding to the terminal accommodating chamber (12). The wire insertion holes (24) are dimensioned to be held in close contact with the outer circumferential surfaces of wires (30) inserted therethrough. The rubber sheet (20) is with resilient members (22) having a larger modulus of elasticity than a rubber sheet main body (21) in parts at least on a wire insertion side surface (21a) either or both between the respective rows of the wire insertion holes of the rubber sheet main body (21) formed with the wire insertion holes (24) or/and between the respective columns of the wire insertion holes.

Abstract: A housing (11) of a waterproof connector (10) is formed with terminal accommodating chambers (12) arranged in rows one above another and columns. A rubber sheet (20) for sealing is arranged at a terminal insertion surface side of the housing (11) and has wire insertion holes (24) corresponding to the terminal accommodating chamber (12). The wire insertion holes (24) are dimensioned to be held in close contact with the outer circumferential surfaces of wires (30) inserted therethrough. The rubber sheet (20) is with resilient members (22) having a larger modulus of elasticity than a rubber sheet main body (21) in parts at least on a wire insertion side surface (21a) either or both between the respective rows of the wire insertion holes of the rubber sheet main body (21) formed with the wire insertion holes (24) or/and between the respective columns of the wire insertion holes.

Abstract: A wire harness is divided in an arrangement direction, and terminals are connected to ends of wires of the divided wire harnesses and respectively mounted into first and second connectors. An intermediate connector is provided which includes a first connector fitting portion and a second connector fitting portion, into which the first and second connectors respectively are fit, and a partition wall is disposed between the first and second connector fitting portions. Intermediate terminals are inserted through the partition wall of the intermediate connector and electrical contact portions at both ends of the respective intermediate terminals project into the first and second connector fitting portions. A waterproofing agent is filled in a part of one or both of the first and second connector fitting portions in contact with the partition wall to embed parts of the intermediate terminals except the electrical contact portions therein.

Abstract: A waterproofing method is provided for a wire to be arranged in a water susceptible area of a vehicle. An insulating coating layer is removed in a lengthwise intermediate part of the wire to expose a core. A heat shrinkable tube with an inner layer made of a hot-melt waterproofing agent is mounted on the exposed core section and parts of the insulating coating layer adjacent to the exposed core section and heated. As a result, the hot-melt waterproofing agent of the inner layer is melted and infiltrates into clearances between strands of the exposed core section. In addition, negative pressure is introduced into the inside of the insulating coating layer from an end of the wire, thereby sucking the waterproofing agent into the inside of the insulating coating layer to infiltrate the waterproofing agent also between the strands of the core inside the insulating coating layer.

Abstract: A water stop structure is provided for a wire harness connected to an electronic control unit installed in an automotive vehicle or a motorcycle. Terminals mounted on ends of wires constituting the wire harness are inserted and locked for connection in a unit connecting connector to be mated with a connector of the electronic control unit, each wire connected to the unit connecting connector includes a water stop section at a position very close to the connector, and the water stop section is formed by filling a waterproofing agent into clearances between strands of a core exposed part formed by removing an insulation coating covering the core of each wire and coating the core exposed part with a waterproof member.

Abstract: Leading end sides of a plurality of wires to be electrically connected with each other are respectively inserted through a plurality of through holes formed in a waterproof rubber lid and the outer circumferential surfaces of insulating coatings of the respective wires are held in close contact with the inner circumferential surfaces of the respective through holes for sealing. The insulating coatings are peeled off at the passed-through ends of the wires to expose cores. The exposed cores are welded, fusion-bonded, soldered or fastened by a crimping terminal to form a terminal joint section. The terminal joint section is inserted into a protection cap made of a bottomed resin molding through an opening end. The waterproof rubber lid is fitted to an opening end of the protection cap to seal the interior of the protection cap accommodating the terminal joint section without injecting a waterproofing agent into the protection cap.

Abstract: A wire spacing device for protecting a signal line from the interference of a strong electromagnetic field from a power line by keeping the signal line separate from the power line by a predetermined distance includes a center bar extending in first and second hooks provided on each end of the center bar. Each of the first and second hooks is formed by an elastic material in a C-shape configuration having a gap smaller than the diameter of any of the first and second wires. When either one of the first and second wires is pressed in the gap, the hook resiliently opens the gap and passes the wire therein, and then the hook resiliently returns to the original position to hold the passed wire therein.

Abstract: A protector for carrying a flat wire harness with a flat wire part and connectors, includes a bottom porion and a rim porion around the bottom portion. The bottom member is provided for positioning and holding the flat wire harness such that the flat wire apart is stretched and the connectors are fit in recesses formed in the bottom portion. The rim portion extends upward and radially outward from the bottom portion for enabling plural protectors to be stacked vertically with a flat wire harness stored in each bottom portion.

Abstract: An apparatus and method for connecting the end portions of electric wires to each other prevents the generation of a respiratory action in the connected end portions of the electric wires and thereby improves connection quality and connection working performance, and reduces the size of the connected portions. Insulating coatings of the end portions of electric wires are removed to provide exposed conductors. The exposed conductors are collected and integrated into a collective conductor and a tapered insulating cap having an opening at one of its ends is fitted over the collective conductor with portions of the insulating coatings adjoining the collective conductor.

Abstract: In the production of a wire harness for an appliance whose circuit differs depending on a combination of selectable electrical systems, the wire harness is divided beforehand into the common circuit which is always provided independently of the presence or absence of the selectable electrical systems and the dedicated circuits one for each of the selectable electrical systems, the wire harness for the appliance is separated into a common circuit and dedicated circuits one for each of the associated electrical systems when an order of an appliance is made, a number of common circuits and a number of each of the dedicated circuits for the electrical systems are added up, the added up number of an common circuits and the dedicated circuits are manufactured and the common circuit and the dedicated circuits of the associated electric systems are combined to produce wire harnesses of the ordered appliances, whereby simple production control and high production efficiency are assured and changes is production or des

Abstract: A wire harness for an appliance containing a combination of selectable electrical systems is separated into a common circuit which is always provided independently of presence or absence of the selectable electrical systems, and dedicated circuits one for each of the selectable electrical systems, the common circuit and the dedicated circuits of the selected electrical systems are detachably joined to each other via a branch connector to form the wire harness whereby simple production control and high production efficiency are assured and changes in production or design can be readily dealt with in the production of a wire harness.

Abstract: A terminal arrangement for connecting a wire to a panel formed with a locking hole, has a terminal connector formed with a mounting hole for bolt passage and a wire connector for tightly receiving a wire. A bent portion is raised integrally from one inside edge of the mounting hole. The bent portion is inserted to the locking hole to position and temporarily hold the terminal arrangement to the locking hole.

Abstract: A harness protector assembly can accommodate a desired length of a wire harness to protect it. The harness protector assembly is assembled by two or more protectors and a connector or connectors. Each of the protectors has a bottom plate and a pair of opposed side walls extending upwards from respective sides of the bottom plate, and a projection is formed on an outer surface of each side wall in the proximity of one end thereof. The connector has an upper plate and two pairs of opposed tabs extending downwards from the upper plate. A through-hole is formed in each tab for engagement with the projection formed on each side wall of each protector. The connector also has a thin-wall portion substantially at the center thereof so as to be susceptible to bending. The harness protector assembly can be bent about the thin-wall portion of the connector at a desired angle.

Abstract: A grommet is provided with a small diameter cylindrical portion defining a first aperture and an expanded diameter portion defining a second aperture which is in communication with the first aperture for inserting a wire harness. In the second aperture of the expanded diameter portion, one end of a bag-shaped portion enclosing the wire harness at a spaced relationship therewith is connected with an end face of the small diameter cylindrical portion. The other end of the bag-shaped portion is made as a tightening portion which sealingly fits with the outer periphery of the wire harness. A gelatinous filler material made of silicone or the like is sealed in the interior of the bag-shaped portion. The small diameter cylindrical portion and the tightening portion are bound with a clamping device against the outer periphery of the wire harness.