Abstract: The present application relates to an on-line automatic detection device for wheel brake space, which is composed of a lower lifting drive system, a detection system, a synchronous clamping drive system and an upper driving and pressing system. In use, the device may not only detect the brake space of the back cavity of the wheel, but also detect the specific value of the interference amount of the brake space. Moreover, it has the characteristics of high automation, powerful function, advanced technology, strong versatility, and safe and stable performance.

Abstract: A vernier calliper for measuring the thickness of a disc brake rotor fitted to a vehicle, the vernier calliper including: (i) first and second members which are mounted for sliding movement relative to one another along an axis; (ii) first and second abutments located on the first and second members respectively and being adapted, in use, to engage first and second sides of a disc brake rotor, the first abutment including an abutment surface; (iii) retaining means for retaining the calliper in an operative position in which: (iv) the first abutment surface engages the first side of the disc and is parallel thereof; (v) the second abutment engages the second side of the disc; and (vi) said axis is orthogonal to said first and second sides of the disc.

Abstract: An apparatus and method for measuring pedal distances within a vehicle. The apparatus includes a first block for engaging an accelerator pedal. The first block includes a first receptacle for receiving a first measurement device and a second receptacle including slidable and rotatable engagement for receiving a second measurement device. The first measurement device measures pedal stroke and the second measurement device measures distance. The apparatus further includes a second block for engaging a brake pedal. The second block includes a receptacle including slidable engagement for receiving a third measurement device. The third measurement device measures distance, either between pedals or between a pedal and a reference surface in the vehicle.

Abstract: A caliper for measuring the size of an object, especially the thickness of an object with non-planar surfaces. After measured, the caliper can be removed from the object without changing the measured value. The caliper includes a scale ruler, a vernier slidably disposed on the scale ruler, a first jaw fixedly connected to the scale ruler and a second jaw pivotally connected to the vernier. In normal state, the second jaw is kept in a position in alignment with and in parallel to the first jaw, whereby the caliper can be used to measure the object in a common manner. After measured, the second jaw is rotated to another position, permitting the caliper to be removed from the measured object.

Abstract: A measurement device for a vehicle having a first pedal and a second pedal is provided and may include a fixture releasably attached to one of the first pedal and the second pedal. A first bar may be supported by the fixture and may extend toward the other of the first pedal and the second pedal and a housing may be slidably attached to the first bar. A second bar may be slidably attached to the housing may include a first surface that engages a first portion of the other of the first pedal and the second pedal and a second surface that engages a second portion of the other of the first pedal and the second pedal. The housing may identify the relative position of the first pedal and the second pedal once in contact with the first portion and the second portion.

Abstract: A system for determining a distance of travel of a brake cylinder piston includes a brake cylinder having the brake cylinder piston, a pressure transducer operationally coupled to the brake cylinder and configured to determine a pressure measurement within the brake cylinder, and a control module of an electrically controlled pneumatic (ECP) brake control system. The control module is operationally coupled to the pressure transducer and configured to convert the pressure measurement within the brake cylinder determined by the pressure transducer into at least one of a displacement time of the brake cylinder piston, an equalization pressure within the brake cylinder, a pressure build-up time within the brake cylinder, a pressure leakage from the brake cylinder, or any combination thereof.

Abstract: A brake pad measuring device is designed to be small enough to fit through various suspension components or many vehicles' wheel aperture and still maintain the ability to move in three-dimensions. The device is compact enough so that it may take an accurate reading of the thickness of a brake pad while being between the caliper housing and the brake pad backing plate of a vehicle. The device also comprises a spring so that once it is correctly placed, it may be manipulated in order to automatically get a reading of the thickness of a brake pad to the closest millimeter or 32nd of an inch by releasing the spring to cause a measurement to be automatically taken. Using this device, any user can get quick, reliable measurements for all four sets of brake pads in a matter of minutes and all without having to remove a single wheel from the vehicle.

Abstract: This invention is a Brake Chamber Stroke Gauge. The Brake Chamber Stroke Gauge is a hand tool for the purpose of measuring brake chamber push-rod stroke on vehicle air brake systems. The Brake Chamber Stroke Gauge is comprised of a measuring rule that is connected to a bar in such a fashion as to allow the rule to travel or slide along the length of the bar, in order to position the numbering or characters at any desired location along the length of the bar. The invention has 2 sides: side A and side B. The increments and characters on side A are configured to be read in the upright position, and increasing in value when read from left to right. The increments and characters on side B are configured to be read in the upright position, and increasing in value when read from right to left.

Abstract: A brake evaluation gauge is useful to determine a brake lining thickness and/or brake drum wear. Depending on the particular embodiment selected, one of a thickness measurement, a percentage of brake life left, a pass or a fail indication may be indicated for the thickness of the brake lining. A first end of a gauge is inserted between a brake shoe table and a brake drum of applied air brakes to provide this reading. Furthermore, a recess in the gauge is placed over a ridge created by wear of the brake lining on the brake drum. If the ridge contacts the interior surface of the recess, then excessive wear of the brake drum is indicated.

Abstract: A brake pad measuring tool is disclosed and functions to provide a quick visual indicator for determining brake pad wear condition in motor vehicles. The brake pad measuring tool includes a plurality of rigid bars which are attached in a reciprocal and rotatable manner via a coupling ring. Each of the rigid bars has a free end provided with a color-coded bar segment. The rigid bars also have descending incremental widths which correspond to a specific color cast by each color-coded bar segment, thus serving as a quick visual indicator for pad wear condition. The brake pad measuring tool allows for a brake pad's condition to be determined while the vehicle wheel is still attached to the hub.

Abstract: A piston travel measuring device for mounting to a non-pressure head is provided. The non-pressure head includes a cylinder and a piston connected thereto for reciprocal movement along a piston travel axis. The device comprises a mounting flange adapted to mount to at least a portion of the cylinder, an elongated body projecting from the flange and along at least a portion of the travel axis of the piston, and at least one indicator on the body and aligned so that at least a portion of the piston may be visually compared with the indicator.

Abstract: An improved testing system for a manufactured rotary metal product having upper and lower surfaces. The testing system includes a gage frame with a fixed lower portion and a vertically movable gaging probe carrier in alignment with the lower portion configured for vertical movement between open and closed configurations to permit the loading and unloading of a product in the testing system. A shaft is provided for supporting the manufactured rotary metal product rotationally about a fixed axis within the gage frame, and at least one set of detectors is provided on each of the upper and lower gage frame portions to produce signals representative of the presence of predetermined characteristics on the upper and lower surfaces of the manufactured rotary metal product as the product is rotated.

Abstract: The invention provides a brake lining wear indicator for use with a brake pad/shoe having a friction lining secured to a plate. The indicator includes a flag positionable adjacent a thickness of the lining, and a base and a resilient member for clipping the indicator onto the plate. The base rigidly extends from the flag, generally perpendicular to the flag and is positionable against a side of the plate. The resilient member is for extending to the other side of the plate to clamp the base against the plate and secure the flag adjacent the thickness of the lining. The thickness of the lining can then be compared to the height of the flag to determine the amount of lining wear.

Abstract: A device for measuring the braking moment in a motor vehicle with disk brakes incorporates a measuring hub mounted on a wheel axle and connected with a wheel rim. Viewed in the radial direction, the hub is divided into an inner part close to the axle and an outer part that forms the marginal area of the measuring hub and surrounds the inner part concentrically. These two sections are connected to one another by ribs which extend radially, with sensors mounted thereon for measuring the bending stress acting on the ribs as a result of the introduction of a torque. In order to determine the braking moments acting on the disk brake without superimposition of other moments acting on the vehicle wheel, the brake disk of a braking device of the motor vehicle surrounds the outer part of the hub concentrically, and is fastened only to the outer part.

Abstract: A gage includes an elongate support arm at the end of a bar on which there is mounted a measurement and display module. A sliding anvil arm is spaced from the bar in parallel relationship and mounted on the module for sliding movements therewith on the bar. A right angle support arm extends from the free end of the elongate support arm, anvils being mounted on the free end support portion of the right angle support arm and at the end of the sliding anvil arm, both the anvils being arranged along a measurement axis. The support portion of the right angle support arm and the anvil mounted thereon together have a dimension along the measurement axis no greater than the smallest anticipated space between a wheel and a rotor to be measured so that the anvil may be positioned on one side of the rotor while the sliding anvil arm together with the module can be brought into abutment against the other side of the rotor to provide a reading of the thickness of the rotor without removal of the wheel from the vehicle.

Abstract: A gage for use in mounting a slack adjuster having one end having an opening adapted to removably couple the slack adjuster to a brake control shaft and an opposite end having an opening adapted to removably receive a bearing pin for rotatably coupling the slack adjuster to a clevis adjustably mounted on a brake actuating push rod, wherein the gage includes an elongated body having first and second ends, the first end having a first bearing surface adapted to engage with an outer surface of the control shaft, and the second end having a second bearing surface adapted for engagement with the bearing pin and an indicator for indicating when the position of the clevis lengthwise of the push rod provides a given angle between an axis extending lengthwise of the push rod and a line drawn through centers of the control shaft and the bearing pin.

Abstract: A brake stroke indicator for use on an air brake having an elongated brake pushrod that travels a linear distance when the brake is applied. The length of the linear distance travelled depends upon the condition of the brake. The indicator comprises an elongated gauging probe having a plurality of grooves spaced at intervals along the length of the probe. Each such groove extends in a plane transverse to the longitudinal axis of the probe. A pushrod bracket is also provided having a flange for engaging the probe in the grooves as the probe is slid longitudinally across the flange. The pushrod bracket has clamping arms to allow attachment of the bracket at a preselected position along the length of the pushrod such that the flange extends in a plane transverse to the longitudinal axis of the pushrod.