A connection device for connecting of electrical and pneumatic lines between a tractor and a trailer having a first end, a second end, and at least two lines connecting the two ends, wherein at least a first pneumatic plug element and at least a first electrical plug element is arranged at the first end and wherein a first plug-in unit is arranged at the second end, having at least a first pneumatic connecting element and at least a first electrical connecting element.

A brake hose support structure of a vehicle includes a brake hose through which pressure fluid is flowed between a pressure source mounted to the vehicle and a brake caliper of a disk brake device of the vehicle, and a hose support supporting the brake hose. The brake hose has a first end that is located adjacent to the pressure source, a second end that is located adjacent to the brake caliper, and a supporting portion that is disposed between the first and second ends. The hose support supports the brake hose at the supporting portion such that an axis of the brake hose extends parallel to a kingpin axis.

A braking control system for a trailer includes a braking system on a semi-trailer with the brake application handle located at the inside rear of the trailer. The handle has a locking member so that personnel loading the trailer are able to apply and lock the brakes on the trailer, and only the person(s) holding the key are able to release the brakes. The system prevents the trailer from moving away from the dock plate and having the dock plate fall through the space between the moved trailer and the dock, injuring personnel and/or damaging equipment.

The trailer emergency air brake supply line coupler is movable between a control position, where air pressure in the supply line causes the trailer emergency air brakes to release so the trailer can be moved, and a park position where the trailer emergency air brake system is vented to automatically engage the trailer emergency air brakes. The lock includes a metal frame attached to the trailer proximate the trailer coupler. First and second spaced side walls extend from the rear wall of the frame on opposite sides of the trailer coupler. A retractable pin extends between the side walls and intersects the path of movement of the supply line coupler preventing movement of the supply line coupler between its control position and its park position. A lock cylinder, padlock or other mechanism retains the pin on the frame.

A screw connection device for connecting two pipes with flared ends, comprises a screw, a nut and a spacer. The nut has a front end aperture from which an accommodating space extends to a rear end aperture in a rear end wall. A surface of the nut in the accommodating space has a threaded section which extends toward the rear end wall which has a flange face in the accommodating space. In a pre-installed state, the spacer and a first pipe end with a first flare are accommodated in the nut, such that the spacer is held undetachable between the first flare and the internal thread. A second pipe end with a second flare can be held in the accommodating space by the screw, threaded into the nut such that the second flare is pressed against a sealing surface of the spacer and the spacer is pressed with a further sealing surface against the first flare.

A saddle-riding-type vehicle cable support structure is a cable support structure configured to support a first cable and a second cable that are joined to a side part of a wheel, the cable support structure including: a joint section provided on a middle of the first cable and which is fixed to a vehicle body; and a second cable support member attached to the joint section and which supports the second cable.

A banjo fitting is provided that may include an annular portion with an internal bore that extends along a first axis, and a hose attachment portion that extends radially from the annular portion, and has an internal fluid passageway extending along a second axis formed at an angle to the first axis. A seal rupturing structure may be positioned within the internal fluid passageway of the hose attachment portion.

Main technical features of a sealing mechanism of a pressure vessel provided by the invention are a sealing unit for airtightly combining with the vessel, and a combination unit for positioning the sealing unit in the airtight combination state, and there are common structures disposed between constituent elements of the sealing unit and the combination unit, so that the sealing unit and the combination unit can be combined with each other in order to facilitate use and storage and to avoid losing or missing parts.

A branch pipe tee for a rail car having a length that is below standard. The branch pipe tee has a standard mount for connecting to the brake pipe and branch pipe as well as integral volume that compensates for the reduced brake pipe length of the rail car. The integral volume is dimensioned to make the effective brake pipe length of rail car fall within standard ranges so that the braking system of the rail car can perform normally and avoid the need for additional equipment to compensate for the length of the rail car.

A connection device for vehicle hydraulic systems having a receiver block is provided, which has one or more connection holes; at least one orientable connector which has an input and/or output section and a connection end; and a fixing plate configured to fix the orientable connector to the receiver block. Where the orientable connector has a head provided with orientation means arranged between the input and/or output section and the connection end; and where the fixing plate has complementary orientation means configured to fit with the orientation means of the head to fix an orientation position (P.sub.3) of the orientable connector, the head being arranged between the fixing plate and the receiver block.