Disclosed are backhoe pedal guards for covering and protecting the foot pedals of heavy equipment machinery, including backhoes. The backhoe pedal guards are made of steel plate material, or other suitable material. They are configured for installation on or near the floorboard, partially enclosing and protecting the foot pedals, while allowing uninhibited access to the foot pedals by an operator. The backhoe pedal guards act as a safety device to prevent inadvertent engagement of a foot pedal, such as by dropping a tool onto the pedal. In an embodiment, a pair of backhoe pedal guards may be a unitary body connected by a front cross member.

A safety knob assembly for actuating a burner is provided. The safety knob assembly includes a dial, the dial includes at least one alignment hole, an interlock disk, the interlock disk includes at least one locking pin, the at least one locking pin having an outer diameter less than then the inner diameter of the at least one alignment hole, a safety post, the safety post connected to the dial and the safety post including a locking hub, the locking hub connected to a switch post, a spring, the spring sized such that the inner diameter of the spring is larger than the outside diameter of the safety post, the spring positioned on the safety post and positioned between the dial and the locking post, wherein the at least one locking pin of the interlock disk engages the at least one alignment hole of the dial as a bottom surface of the dial approaches a top surface of the interlock disk, wherein the interlock disk engages the locking hub as a bottom surface of the interlock disk approaches the locking hub, and wherein the burner is actuated as the dial, the interlock disk, the safety post and the locking hub are positioned to rotate the switch post relative to the burner to allow the flow of energy from an energy source to the burner.

A dial type shift lever apparatus warns and limits a driver of mischievous manipulation of a rotation knob, preventing a mal-operation of gear shift and preventing a printed circuit board (PCB) circuit from being overloaded due to excessive manipulation of the rotation knob.

A system for inhibiting and providing access to appliance control knobs includes a support structure for mounting individual control knobs or groups thereof, and an actuator assembly for extending and retracting control knobs either individually or collectively.

Provided is an operating device for a construction machine that prevents an operator from accidentally gripping the blocking bar when the operator walks through the passage in front of the console box and that also prevents work clothes of the operator from being caught in the blocking bar. An operating device for a construction machine includes: a console box having an operating lever attached to an upper surface thereof, wherein the operating lever outputs a signal for operating the construction machine in response to a manual operation; and a blocking bar that is swingably attached to the console box about an axis extending widthwise between a block position at which to block a passage provided in front of the console box and a retreat position at which the blocking bar retreats from the passage. A recess is formed in a front end of a lateral side of the console box. The blocking bar is housed in the recess when it is positioned at the retreat position.

A rotary controller selectively-disengageable locking knob assembly, having a hub having a longitudinal axis and an axial bore extending at least partially through the inner hub along the longitudinal axis, wherein the axial bore is configured to receive a shaft of the rotary controller arranged in or on a device surface. The assembly also includes a knob concentrically disposed about at least a portion of the hub, wherein the knob includes a first engagement arrangement. A post is threadedly engaged with the radial bore so as to secure the hub to the shaft of the rotary controller, and projecting radially outwardly through the radial slot, such that rotation of the knob induces a rotation of the hub via contact of the post with the radial slot. The knob is axially moveable on the hub to selectively disengage the first engagement arrangement from contact with a second engagement arrangement.

A vehicle input-operation assistance device includes: a traveling state detection section that detects a traveling state of a vehicle; an operation state detection section that detects an operation state of an operation member gripped by an occupant during operation; a support section that is capable of being stowed in an interior component of the vehicle, and that is capable of projecting from the interior component to a support position where the support section is capable of supporting an elbow of the occupant when the occupant is operating the operation member; and a controller that determines whether or not the elbow of the occupant operating the operation member needs to be supported based on information detected by the traveling state detection section and the operation state detection section and, in cases in which support is determined to be needed, controls the support section to project to the support position.

A portable hydraulic power unit includes a fluid tank supported on a frame, a first pump configured to draw hydraulic fluid from the tank and a second pump configured to draw hydraulic fluid from the tank. The portable hydraulic power unit further includes a two-way valve disposed on a high-flow line extending from an output of the second pump, the two-way valve movable between an open state and a closed state. The two-way valve is electrically-actuated and configured to shift to the open state based on a hydraulic fluid pressure in a combined flow line downstream of the first pump and the second pump exceeding a threshold pressure level. The two-way valve directs the output of the second pump back to the fluid tank when the two-way valve is in the open state.

A charge release circuit includes a plurality of pixel circuits and at least one photosensitive control circuit, and each photosensitive control circuit is connected to at least one pixel circuit. Each pixel circuit of the at least one pixel circuit includes: a discharge circuit connected to the photosensitive control circuit, and a first capacitor connected to the discharge circuit and configured to store a display driving signal. The photosensitive control circuit is configured to control the discharge circuit to be turned on in a state where a backlight of a display device is turned off to release residual charges in the first capacitor.

A potentiometer device has a tubular body, an actuation shaft, splines, spline-receiving cavities, a potentiometer, a tubular housing, first and second annular cavities and retention balls. The splines are externally positioned about the actuation shaft. The spline-receiving cavities are internally positioned around the tubular body. The potentiometer has a housing body and a wiper pin. The tubular body is connected to the housing body. The tubular housing and the wiper pin are positioned within the housing body. The tubular housing is connected to the housing body. The wiper pin is mechanically coupled to the actuation shaft. The actuation shaft is removably positioned within the tubular body and the housing body. The first annular cavity internally and radially traverses into the tubular housing. The second annular cavity externally and radially traverses into an output coupling end of the actuation shaft. The retention balls are engaged within the first annular cavity.