240 results about "Pivot joint" patented technology

The invention relates to a spectacle temple side shield structure, wherein the two sides of the spectacle frame and the pivot joints of the temples pivotally connect to each other. Each of the temples has a detent seat corresponding with the pivot joint. The side shield device has a shielding piece arranged thereon and a detent unit provided on an inner edge of a top end of the shielding piece, wherein the detent unit has grooves correspondingly arranged on the upper and lower parts thereof, an elastic part formed between the upper and lower two corresponding grooves, and a detent protrusion protruding from the elastic part, which is latch-locked and fixed with the detent seat corresponding to each other. Therefore, users can choose different shapes and color patterns of the side shields according to their own preferences to assemble and fix them on both sides of the spectacle frame.

The present invention relates to a detachable side shield structure of spectacles, which mainly a side shield unit, arranged at the pivot joint between the temple and the frame, and includes a shielding portion for shielding, a blocking bar protruded from an outer edge, and a snap portion provided on an inner edge of a top surface of the shielding portion. The snap portion has a detachable embedded portion arranged on an inner side thereof, which can correspond to a catching portion at the pivot joint of the temple and engage with each other. The temple is limited through the blocking bar and the snap portion, and the detachable embedded portion of the snap portion and the catching portion on the pivot joint form a detachable latch positioning structure, so that the side shield unit can be firmly coupled to the temple and can be disassembled and assembled as needed.

The invention provides a treatment device capable of automatically and accurately adjusting a body position. The treatment device comprises a treatment pad body, a body position adjusting mechanism, a pressure sensor and a controller. The treatment pad body is provided with four body units which are arranged in a parallel array mode. The body position adjusting mechanism comprises a supporting frame; the connecting frame is provided with four body areas, the four body units of the treatment pad body are fixedly installed above the four body areas of the connecting frame respectively, the four body areas of the connecting frame are in pivot joint through pivots, and the supporting frame is in pivot joint with the four body areas of the connecting frame through pivots; the electric telescopic rod is mounted on the supporting frame through a base; the connecting rod is rotatably mounted on the supporting frame, and a connecting piece pivoted with the electric telescopic rod is arranged on the connecting rod; one end of the boosting rod is fixedly connected with the connecting rod, and the other end abuts against the four body areas of the connecting frame. The pressure sensor is arranged on the treatment pad body. The controller is electrically connected with the pressure sensor and the electric telescopic rod of the body position adjusting mechanism.

Earmuffs with a joint are provided to create a biased pressure distribution about a perimeter of the cup. The earmuffs may include a pivot joint. The pressure distribution creates a wedging pressure (e.g., on a top edge) on the cups that hold the earmuffs on the user's head, for example, when the user rotates the headband behind the head. The bias pressure is also used to adjust the seal formed between the pad and the user's head. Adjustments to the moment created by separating the joints from the cup's apex enable a user to selectively adjust the seal according to the user's preference. A cam is added to the headband to change the hoop stress distributed at the joints and further adjust the compressive forces generated to hold the earmuffs against the user's head.

The shearing mechanism comprises a first shear body, a second shear body, a first connecting rod piece, a second connecting rod piece and a first limiting piece, the first shear body and the second shear body are in pivot joint through a first pivot joint shaft, and the first connecting rod piece and the second connecting rod piece are each provided with a pivot joint end and a handle end; the pivot joint ends of the first connecting rod piece and the second connecting rod piece are in pivot joint through a second pivot joint shaft, the middle of the first connecting rod piece is in pivot joint with the first scissor body, and the middle of the second connecting rod piece is in pivot joint with the second scissor body to form a four-connecting-rod structure. When the first connecting rod piece and the second connecting rod piece rotate relatively, the first scissor body and the second scissor body can be driven to rotate relatively to be opened and closed, and the second pivoting shaft can move along the first limiting groove. The structure can limit the movement condition of the connecting rod, so that the opening and closing amplitude of the two scissor bodies is well limited, excessive opening or closing of the scissor bodies is avoided, and use is convenient.

Disclosed are reducer instrument locking mechanisms. They can be located near a center pivot joint of the reducer, thereby eliminating a ratchet at the reducer proximal end. The locking mechanisms can include a pawl or latch that travels with one handle from an open position to a closed position. The pawl can fall into a groove formed in an opposing handle such that handles of the reducer can be locked relative to one another, at least with regard to movement of the handles away from one another. When falling into the groove, the pawl can create an auditory and / or tactile indication that a sufficient amount of rod reduction has been achieved to allow for set screw insertion. After set screw insertion, the reducer locking mechanisms can be released to clear it of the groove and allow the reducer to return to its open position.

A centraliser comprises arm assemblies pivotally connected between first and second support members. Each arm assembly comprises a first arm pivotally attached to one of the first and second support members by a first pivot joint having a first pivot axis, a second arm assembly pivotally attached to the other one of the first and second support members by a second pivot joint having a second pivot axis, the first and second arms pivotally attached together via a third pivot joint having a third pivot axis. The first arm comprises a fork section extending around opposite sides of the respective first or second support member to position the first pivot axis radially within an outer diameter of a mandrel on which one or both support members move.