62 results about "Pivotal point" patented technology

In a seat back structure, an auxiliary frame having a pressure receiving portion and a headrest mounted thereon is movably provided in seat back frame via guide element and link element. The guide and link elements are respectively disposed in upper and lower portions respectively of the auxiliary and seat back frames. Biasing element is provided to the link element, such that a line of force of the former is positioned on one side of a pivotal point of the link element, thereby retaining the headrest at initial position, and that, when excessive backward load is applied to the pressure receiving portion, the link element is rotated to displace the line of force toward another side of the first pivotal point, whereby the auxiliary frame is displaced forwardly and upwardly of the seat back frame, thereby causing the headrest to move to a position for supporting a head of seat occupant.

A foldable elliptical fitness machine comprises a first frame securely supported on a floor and a second frame for installing an elliptical structure, and the second frame is pivotally coupled to the first frame by a pivoting device, such that the second frame can be rotated with respect to the first frame, wherein the elliptical structure comprises a rotating member having two eccentric pivotal points, and two pedal arms. A central penetrating axle of the rotating member is pivotally coupled onto the second frame, and each eccentric pivotal point is pivotally coupled to the first end of the pedal arm, and each pedal arm includes a footrest for a user to step. If the first end of the pedal arm rotates with the crank, the footrest will move in an elliptic path. With the foregoing structural design, the elliptical structure can be fully folded to improve the convenience of use.

A foldable elliptical fitness machine comprises a first frame, a second frame supported by the first frame, and an enabling assembly for enabling the second frame to rotate with respect to the first frame, the first frame securely supported on a floor and the second frame installed an elliptical structure, and the second frame is pivotally coupled to the first frame by a pivoting device, such that the second frame can be rotated with respect to the first frame, wherein the elliptical structure comprises a rotating member having two eccentric. pivotal points, and two pedal arms. A central penetrating axle of the rotating member is pivotally coupled onto the second frame, and each eccentric pivotal point is pivotally coupled to the first end of the pedal arm, and each pedal arm includes a footrest for a user to step. If the first end of the pedal arm rotates with the crank, the footrest will move in an elliptic path. With the foregoing structural design, the elliptical structure of the invention has the functions of changing the inclination of the elliptical fitness machine so that users have the convenience of using by changing the level of difficulty of their exercise.

A pedal angle adjustable device for an elliptical trainer includes two adjustable plates pivotably connected between the pedal and two connection plates which are pivotably connected to an end of the pedal. The two adjustable plates each have a positioning hole composed of a plurality of positioning notches and a positioning rod extends through the two connection plates and the positioning holes in the two positioning plates. A push block connected to a handle is located in front of the positioning rod such that when operating the handle, the push block may push the positioning rod from one positioning notch to another and the pedal can be pivoted about the pivotal point on the end of the pedal.

Utilizing the principles of physics (mass and leverage) and body mechanics, the intent and design of the Ergonomic Body Developer (EBD) is to harness the effects of torque at a given distance from a fixed pivotal point. Other systems require a force (mass) to be applied at the most distal point of the levering appendage (typically the extremities). The EBD is designed to distribute said force equally over the entire levering appendages concurrently with the variability of the masses to gradually condition the body to greater exertion and stamina, reducing or eliminating collateral damage due to overzealous miscalculations. It is designed to target specific muscles or muscle groups and to eliminate the necessity of specialized equipment. The EBD utilizes natural, body motions in such a manner that each activity becomes an exercise. The key is the vast variability of the masses and their interchangable positionings on the body.

A specimen holder has two levers on which probes for current measurement are carried. The levers are in contact with a spherical body, the spherical body acting as a pivotal point. When the levers are pushed by micrometer heads, the probes move in the X-direction. When the levers are pulled, the probes are pushed back by springs and move in the −X-direction. When the first lever is pushed by a further micrometer head, the first probe rotates about the spherical body and thus moves in the Y-direction. When the first lever is pulled, the first probe is pushed back by the first spring and moves in the −Y-direction. The second probe is moved along the Y-axis by similarly manipulating a further micrometer head. The two probes can be moved along the Z-axis by similarly manipulating other micrometer heads.

A labor-saving garden scissors comprises a first handle having a first blade; a second handle having a first toothed portion; a second blade having a second toothed portion mating with the first toothed portion; a connection bar having first, second and third pivotal points, wherein the third and second pivotal points are respectively pivotally-coupled to the second blade and second handle; a first pivotal element pivotally-coupling the first and second blades; a second pivotal element pivotally-coupling the second blade and third pivotal point; a third pivotal element pivotally-coupling the second handle and second pivotal point; and a fourth pivotal element pivotally-coupling the second blade, first blade and first pivotal point with the second blade arranged between the first blade and the connection bar. The effort lever arm between the second and third pivotal points is greater than the resistance lever arm between the first and third pivotal points.

A vanity lighting system for concealing a lighting apparatus when a pivotally mounted cover is closed and positioning the lighting apparatus through movement of the cover as it is opened. The vanity lighting apparatus comprises a housing providing an opening, a mirror; an illumination lamp located within the housing, a cover pivotably movable between a closed position overlaying the opening and an open position at least partially spaced from the opening. The cover encloses the lamp such that when the cover is in the closed position the lamp is hidden from view. Additionally, the vanity lighting apparatus comprises a first support assembly including at least two pivotal points operably coupled with the cover and the lamp and a second support assembly including at least one pivotable point operably coupled with the housing and the lamp, wherein the first and second support assemblies provide movement of the lamp in response to the movement of the cover. An activation means is provided for activating and deactivating the illumination lamp in response to the movement of the cover.

The extruding implement structure of the present invention comprises a handle pivotally connected to a rear base and disposed on one side of the base, and is substantially parallel to the base or in an aslant position, using a first resisting arm to press against a pushing member of a first exerting arm pivotally coupled to a rear base, and the pushing member uses a second resisting arm on the other end of the pivotal point to press against the first latch plate and drive the push rod to push and press against the silicon gel can for the gel injection. A latch member is disposed between the outside of the rear base and the second latch plate such that the silicon gel will not keep on squeezing the silicon gel after the operation is stopped.

The invention provides a stay cable saddle positioning device. The device comprises a base, supporting rods with one ends hinged to the base respectively, and a telescopic support, wherein the supporting rods are hinged to the other end of the telescopic support, and a bearing plate used for accommodating a cable saddle is connected to the upper end of each supporting rod. A stay cable saddle positioning method adopting the positioning device comprises the steps of 1, arranging an elevation point on the outer side of a stiff skeleton at the top end of a well poured tower column, and determining the positioning elevation of the cable saddle according to the elevation point; 2, adjusting the length of the telescopic support to enable the angle of each supporting rod to be consistent with the angle of a sub-steel-pipe; 3, giving off a center cross line of a main tower by means of a total station after tower column construction is finished, determining the direction of the cable saddle by means of a plumb, and installing the cable saddle; 4, re-checking the coordinates of the positioning key points of the cable saddle by means of the total station, adjusting the position of the cable saddle, fixing the cable saddle, and dismounting the positioning device. By the adoption of the device and method, cable saddle positioning precision is ensured, project quality is guaranteed, and working efficiency is improved.

Vehicle seat including: a seat back pivoted to a side of floor; a seat cushion pivoted to the seat back; and a front leg element having an upper end pivoted to the seat cushion and a lower end pivotally locked to the side of floor in a releasable manner, thus normally providing a four-pivotal-point linkage in the seat. Maintaining the four-pivotal-point linkage adversely restricts design and actions of the seat. Inequality conditions are therefore set in that four-pivotal-point linkage, such that folding down the seat back by an angle exceeding a predetermined angle results in unlocking of the lower end of the front leg element from the side of floor, thereby destroying the four-pivotal-point linkage. Hence, a freedom of design is increased for the seat and floor. Further, leverage mechanism(s) may be provided to facilitate the ease of unlocking the front leg element from the side of floor.

An appliance stabilizing device which is useful in securing an appliance in position against a supporting structure surface. The device includes a plurality of brackets which are selectively positionable on an appliance, with a plurality of elongated members, each pivotally attached to a bracket. Each elongated member has at least one aperture spaced a distance along the length of the elongated member from the pivotal point with the bracket. The elongated member is attached to a support surface, typically a baseboard and/or a wall. The bracket includes apertures spaced from each other in a generally triangular configuration, and the elongated member is typically pivotally attached at the apex of the generally triangular configuration of apertures. The device is self adjusting during attachment of the appliance to a supporting structure.

This approach generally pertains to a miniature terminal receptacle (10) with a connection section (12) and a mating section (14). The mating section has a pseudo- two-beam component that includes a contact spring (20) having a stationary beam, a resilient contact beam (24) and a beam overlapping section (26). The resilient contact beam has a contact bump (40) and a stiffening section (30) with a pivotal point (38). The shape of the contact spring increases the contact engagement or holding force on a male pin during mating. Overstress protection of the contact spring is provided and the terminal is economical to produce.

A garlic press includes a grip member and a crush member pivotally connected with the grip member. The grip member includes a housing body and an upper handle extended backward from the housing body. The housing body is adapted for accommodating garlic. The crush member includes a crush body which can be movably inserted into the housing body for crushing the garlic into mash. The garlic press may further include a cleaning device which is coupled on a bottom portion of the housing body for cleaning out the garlic mash remained on the housing body. Further, the pivotal point of the garlic press is disposed close to a middle portion of the garlic press structure to make the garlic press to be convenient for using.

An inversion table has a mounting bracket, a backrest, an ankle clamp assembly and a heating device. The mounting bracket has a rear supporting frame and two front supporting legs to form a triangle. The rear supporting frame has two pivotal points. The backrest is pivotally connected to the pivotal points and has a connecting arm. The ankle clamp assembly is connected to the connecting arm of the backrest to clamp and hold a user's ankles. The heating device is connected to the mounting bracket and the backrest and has a heating panel, a controller and a power cord. The heating panel is mounted in the backrest. The controller is electrically connected to the heating panel to control the temperature of the heating panel and is securely mounted on a rear side of the backrest. The power cord is electrically connected to the controller to transport electricity to the controller.

An embodiment of this invention discloses a foldable treadmill comprising a bracket, a platform, a lifting device, a folding frame, a motor, a linear actuator, and a control board, wherein the bracket comprises two supporting sticks, two tracks, and a rear linkage connected with the supporting sticks, the lifting device comprises a rod connected with the bracket, and two pull members respectively arranged at one end of the rod, the folding frame comprises two bars and a link bar, in which the link bar has two ends respectively connect with one bar, a middle portion of each bar connects with the pull member of the lifting device, a front end of each bar is used as a pivotal point to rotate, and a rear end of each bar has a wheel placed in the track, and the linear actuator is horizontally laid on the rear linkage.