Abstract: A walker is provided with a first side frame including a telescopic forward leg, a telescopic rearward leg, and a top arm having one end integrally formed with the forward leg and the other end joined to the rearward leg; a second side frame including a telescopic forward leg, a telescopic rearward leg, and a top arm having one end integrally formed with the forward leg and the other end joined to the rearward leg; a front frame releasably secured to both the first and second side frames; and first and second crutch sections releasably secured to the first and second side frames respectively.

Abstract: A sensing device includes a cover having a window; a seat comprising a bottom first opening, a peripheral wall, a recess on the wall, and a bottom channel; a spring biased sliding unit comprising a bottom projection fitted in the first opening, a probe extending from the projection, a hollow cylinder, and two opposite cavities on a periphery; a cylindrical rotational unit comprising a rim extending inward from an inner surface, a second opening on the rim, a display plate on the rim, and two opposite guide protrusions on an inner surface opposing the display plate wherein indications are printed on the display plate, and the rotational unit is rotatably put on the sliding unit with the cylinder passing through the rim, the display plate being rested on the recess, and the guide protrusions being engaged with the cavities; and a biasing member retained on the cylinder.

Abstract: A sensing device includes a cover having a window; a seat comprising a bottom first opening, a peripheral wall, a recess on the wall, and a bottom channel; a spring biased sliding unit comprising a bottom projection fitted in the first opening, a probe extending from the projection, a hollow cylinder, and two opposite cavities on a periphery; a cylindrical rotational unit comprising a rim extending inward from an inner surface, a second opening on the rim, a display plate on the rim, and two opposite guide protrusions on an inner surface opposing the display plate wherein indications are printed on the display plate, and the rotational unit is rotatably put on the sliding unit with the cylinder passing through the rim, the display plate being rested on the recess, and the guide protrusions being engaged with the cavities; and a biasing member retained on the cylinder.

Abstract: A glide for walker leg includes a seat including a bottom cavity; a base on the seat and including a hole and a top groove; a hollow first sliding member adapted to mount on the base and including a first bore, a bottom rail slidably inserted into the groove, and a top first slope; a hollow second sliding member including a bottom second slope adapted to matingly, slidably mount on the first slope, a second bore, and an upper threaded section in the second bore; and a threaded fastener adapted to insert through the cavity, the hole, the first and second bores for threadedly securing to the threaded section. Driving the fastener will slide the second sliding member relative to the first sliding member by sliding the rail in the groove so as to urge the first and second sliding members against an inner wall of the leg.

Abstract: A cane is disclosed that includes a handle having a lower protrusion; a shaft having a top projection matingly secured to a bottom recess of the protrusion; and a sleeve adapted to securely put on the protrusion, an upper portion of the shaft, or a joining portion of the protrusion and the upper portion of the shaft. The invention can increase structural strength of the cane.

Abstract: A cane is disclosed that includes a handle having a lower protrusion; a shaft having a top projection matingly secured to a bottom recess of the protrusion; and a sleeve adapted to securely put on the protrusion, an upper portion of the shaft, or a joining portion of the protrusion and the upper portion of the shaft. The invention can increase structural strength of the cane.

Abstract: A bar clamp includes a forward gripping section having two jaws, a rear housing, and an interconnecting tube. Pressing back a trigger handle will cause the jaws to grip an article, and counterclockwise pivot a link to cause a lock member to move through an opening of a locking plate into a slot of a release member. The article is gripped permanently after releasing the trigger handle by lockingly engaging a top of the lock member with an upper face of the opening. Counterclockwise pivoting a release lever will disengage the lock member with the opening, release a stored elastic force and apply same to the trigger handle for clockwise pivoting, and move one jaw away from the other jaw for dropping the article.

Abstract: The hand brake includes a main frame fixedly mounted on a handlebar of the walker, a control lever pivotally connected to the main frame, a brake member pivotally connected to the control lever to locate in a working space of the control lever, and a steel cable connected to the brake member. With changes in positions of the control lever, the brake member is caused to change its position in the working space of the control lever to pull the steel cable and thereby to either brake the wheeled walker, to brake and park the wheeled walker, or to return the walker to a non-brake state.