CROSS-REFERENCE TO RELATED APPLICATION

This non-provisional application claims priority under 35 U.S.C. § 119(a) on Patent Application No(s). 106202673 filed in Taiwan, R.O.C. on Feb. 23, 2017, the entire contents of which are hereby incorporated by reference.

FIELD OF THE INVENTION

The present invention relates to pull aid structures and, more particularly, to a pull aid structure for fastening two objects to achieve quick coupling and ease of removal.

BACKGROUND OF THE INVENTION

The prior art involves coupling two objects, for example, coupling and fixing the two objects, such as a panel and a circuit board, to the inside of a case with screws and by direct latching. Although the two objects can be coupled together, removal of one of the objects requires loosening the screws and then taking out the object by hand. Furthermore, the prior art lacks any special mechanism for assisting users in taking out the objects and thus lacks ease of use.

Accordingly, it is imperative to provide a pull aid structure with a view to overcoming the aforesaid drawbacks of the prior art.

SUMMARY OF THE INVENTION

In view of the aforesaid drawbacks of the prior art, the inventor of the present invention conceived room for improvement in the prior art and thus conducted extensive researches and experiments according to the inventor's years of experience in the related industry, and finally developed a pull aid structure as disclosed in the present invention to fasten two objects in such a manner to achieve quick coupling and ease of removal.

In order to achieve the above and other objectives, the present invention provides a pull aid structure, comprising: a handle; a connecting element movably disposed at the handle; and a positioning element disposed at the handle and movably coupled to the connecting element. The positioning element has a corresponding portion. The corresponding portion is movably coupled to an adjoining portion of the connecting element. Therefore, as soon as the positioning element escapes from the connecting element, the handle escapes from the connecting element and thus rotates or moves.

Regarding the pull aid structure, the connecting element has an elastic element.

Regarding the pull aid structure, the handle has an abutting portion.

Regarding the pull aid structure, the handle has a receiving space for receiving the connecting element and the positioning element.

Regarding the pull aid structure, the connecting element has a rotating shaft connected to the handle.

Regarding the pull aid structure, the rotating shaft is connected to the handle by a joining element.

Regarding the pull aid structure, the connecting element has a fixing portion.

Regarding the pull aid structure, the adjoining portion of the connecting element is movably coupled to, confined to, adapted to interfere with or engaged with the positioning element.

Regarding the pull aid structure, the elastic element is disposed outside or inside the connecting element, and the elastic element has two ends disposed at the handle and the connecting element, respectively.

Regarding the pull aid structure, the positioning element comprises a thrusting rod, an actuating rod, and a connector for connecting the thrusting rod and the actuating rod.

Regarding the pull aid structure, the thrusting rod has a pressing portion disposed at an end of the handle and a rod body connected to the connector.

Regarding the pull aid structure, the actuating rod has an extending portion connected to the connector and a corresponding portion connected to the extending portion and movably coupled to, confined to, adapted to interfere with or engaged with the connecting element.

Regarding the pull aid structure, the positioning element comprises a pressing portion disposed at an end of the handle and an actuating rod connected to the pressing portion.

Regarding the pull aid structure, the pressing portion and the actuating rod are fastened, adhered, latched, riveted, expanded, engaged or snap-engaged together or are integrally formed.

Regarding the pull aid structure, the actuating rod has a corresponding portion movably coupled to, confined to, adapted to interfere with or engaged with the connecting element.

Regarding the pull aid structure, the elastic element is a coil spring, a saucer-shaped leaf spring, a C-shaped leaf spring, a wave-shaped leaf spring, an elastic post, a leaf spring or a torsion spring.

Regarding the pull aid structure, the positioning element comprises a pressing portion disposed at an end of the handle and an actuating rod connected to the pressing portion, wherein the corresponding portion is connected to the actuating rod and movably coupled to, confined to, adapted to interfere with or engaged with the adjoining portion.

Regarding the pull aid structure, the connecting element comprises a connection unit disposed at the rotating shaft.

Regarding the pull aid structure, a positioning portion is disposed at the bottom of the connection unit.

Regarding the pull aid structure, a first thrust element and a second thrust element are disposed between the handle and the connecting element or between the handle and the rotating shaft.

Regarding the pull aid structure, the positioning element is a convex portion or a concave portion, whereas the connection unit of the connecting element has a dent portion or a protrusion portion movably adjoining a convex portion or a concave portion.

Regarding the pull aid structure, the fixing portion is a protuberance, a dent, an external thread, an internal thread, a buckle, a cascade, a plane, an arcuate surface, a curved surface or an oblique surface.

Regarding the pull aid structure, the fixing portion is riveted, expanded, latched, soldered, fastened, adhered or bolted to an object.

Regarding the pull aid structure, the positioning portion is a protuberance, a dent, an external thread, an internal thread, a buckle, a cascade, a plane, an arcuate surface, a curved surface or an oblique surface.

Regarding the pull aid structure, the adjoining portion is a hole, a slot, a protuberance, a dent, a cascade, an arcuate surface, a plane, an oblique surface, a curved surface or a buckle.

Regarding the pull aid structure, the pull aid structure and another object together form a module.

Regarding the pull aid structure, the other object is a panel, a box, a plate, a block, a motherboard or a casing.

Regarding the pull aid structure, the positioning element and the handle are movably connected by the connector.

Regarding the pull aid structure, the connector is a bolt, a buckle or a post, or is integrally formed with the positioning element or the handle.

Regarding the pull aid structure, the handle or the positioning element has a movable portion whereby the positioning element moves horizontally or vertically.

Regarding the pull aid structure, a space within which the movable portion moves ranges from 0.05 mm to 500 mm.

Regarding the pull aid structure, the abutting portion is for thrusting or fastening an object corresponding in position to and connected to the abutting portion.

Regarding the pull aid structure, an elastic portion is disposed between the actuating rod and the handle.

Regarding the pull aid structure, the elastic portion is a coil spring, a saucer-shaped leaf spring, a C-shaped leaf spring, a wave-shaped leaf spring, an elastic post, a leaf spring or a torsion spring.

Regarding the pull aid structure, the positioning element is connected to or engaged with the handle or connected thereto by a connector.

Regarding the pull aid structure, the connector is disposed at the actuating rod of the positioning element.

Regarding the pull aid structure, the movable portion is disposed at the actuating rod of the positioning element.

Regarding the pull aid structure, the elastic element has its two ends fixed in place to exert a force such that the handle and the connecting element elastically rotate by 5 to 360 degrees.

Regarding the pull aid structure, the rotating shaft has a blocking portion and the connecting element are connected to each other or confined to each other.

Regarding the pull aid structure, the joining element is an axle, a buckle or a post or is integrally formed with the rotating shaft or the handle.

Regarding the pull aid structure, the positioning element has a pressing portion disposed at an end of the handle.

Regarding the pull aid structure, the corresponding portion is a protuberance, a dent, an external thread, an internal thread, a buckle, a cascade, a plane, an arcuate surface, a curved surface, an oblique surface, a slot or a hook.

Regarding the pull aid structure, the corresponding portion of the positioning element is movably coupled to, confined to, adapted to interfere with or engaged with the adjoining portion.

Regarding the pull aid structure, the positioning element has an engaging convex portion, whereas the connection unit of the connecting element has a notch portion movably engaged with the engaging convex portion.

Regarding the pull aid structure, an elastic component is disposed between the positioning element and the handle.

Regarding the pull aid structure, the handle has a stopping portion, and the connecting element has a corresponding checking portion such that the corresponding checking portion and the stopping portion are confined to each other or adapted to stop each other.

Regarding the pull aid structure, the corresponding portion of the positioning element is integrally formed with the handle or is a bump, a protuberance, a dent, a slot, a hole, a buckle, a hook, a plate or a block which is connectedly formed to restrict the adjoining portion of the connecting element.

Regarding the pull aid structure, a first thrust element or a second thrust element is disposed between the handle and the connecting element.

Therefore, a pull aid structure of the present invention enables a user to place a connecting element on an object, rotate a handle to fasten another object, confine a positioning element to the connecting element, and compress an elastic element, so as to couple together the two objects. To remove one of the objects, the user separates the positioning element and the connecting element such that the handle is released by the elastic element and thus automatically springs forward to thereby separate the two objects, thereby achieving quick coupling and ease of removal.

