Patent Publication Number: US-2020281086-A1

Title: Pull-out aiding device

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     This application is a continuation-in-part patent application of U.S. application Ser. No. 15/990,867 filed on May 29, 2018, which is a divisional application of U.S. application Ser. No. 15/381,589 filed on Dec. 16, 2016, the entire contents both of which are hereby incorporated by reference for which priority is claimed under 35 U.S.C. § 120, which claims priority to Taiwanese Patent Application No(s). 104220885 filed on Dec. 25, 2015. 
    
    
     BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present disclosure relates to a pull-out aiding device mountable on a chassis, housing, casing or the like and adapted to facilitate pushing and pulling a target, such as a hard disk drive, received therein. 
     2. Description of the Related Art 
     A conventional chassis usually comes with an unloading mechanism (also known as disengaging mechanism). The purpose of the unloading mechanism is to separate a hard disk drive or circuit board from a port disposed in the chassis. When a user rotates the unloading mechanism, the hard disk drive or circuit board is pushed and thus moved to cause its separation from the port. However, the function of the unloading mechanism of the conventional chassis is restricted to moving the hard disk drive or circuit board for a short distance (typically 3-5 mm). As a result, the prior art lacks ease of use. 
     BRIEF SUMMARY OF THE INVENTION 
     An objective of the present disclosure is to provide a pull-out aiding device which is labor-saving and is simple and convenient to operate. 
     To achieve at least the above objective, the present disclosure provides a pull-out aiding device mountable on an object. The pull-out aiding device comprises a pulling component and a gripping component. The pulling component is movably or pullably coupled to a first lateral plate. The pulling component comprises a first pivotal connection portion, a corresponding portion and a corresponding obstructing portion. The gripping component comprises a second pivotal connection portion, an operating portion and an obstructing portion. The second pivotal connection portion is pivotally connected to the first pivotal connection portion, such that the gripping component rotates about the second pivotal connection portion. The obstructing portion of the gripping component is obstructed by the corresponding obstructing portion of the pulling component to limit the included angle between the pulling component and the gripping component. 
     The present disclosure further provides a pull-out aiding device mountable on an object. The pull-out aiding device comprises a pulling component and a gripping component. The pulling component is movably or pullably coupled to a first lateral plate. The pulling component comprises a first pivotal connection portion, a corresponding portion and a corresponding obstructing portion. The gripping component comprises a second pivotal connection portion, an operating portion and an obstructing portion. The second pivotal connection portion is pivotally connected to the first pivotal connection portion, such that the gripping component rotates about the second pivotal connection portion. The obstructing portion of the gripping component is obstructed by the corresponding obstructing portion of the pulling component to limit the included angle between the pulling component and the gripping component. The included angle is 90 degrees or ranges from 70 degrees to 110 degrees. 
     The present disclosure further provides a pull-out aiding device mountable on an object. The pull-out aiding device comprises a pulling component and a gripping component. The pulling component is movably or pullably coupled to a first lateral plate. The pulling component comprises a first pivotal connection portion and a corresponding portion. The first lateral plate has a corresponding blocking portion. The gripping component comprises a second pivotal connection portion, an operating portion, a blocking portion and a return hook portion. The second pivotal connection portion is pivotally connected to the first pivotal connection portion, such that the gripping component rotates about the second pivotal connection portion. The obstructing portion of the gripping component is obstructed by the corresponding obstructing portion of the pulling component to limit an included angle between the pulling component and the gripping component. The blocking portion of the gripping component and the corresponding blocking portion blocking of the first lateral plate engage with each other to ensure that the return hook portion can engage with the entry position of the first lateral plate only if the gripping component reaches the return hook portion to engage with an entry position of the first lateral plate. 
     The present disclosure further provides a pull-out aiding device mountable on an object. The pull-out aiding device comprises: a pulling component movably or pullably coupled to a first lateral plate and comprising a first pivotal connection portion and a corresponding portion, wherein the first lateral plate has a corresponding blocking portion; and a gripping component comprising a second pivotal connection portion, an operating portion and a blocking portion. The second pivotal connection portion is pivotally connected to the first pivotal connection portion, such that the gripping component rotates about the second pivotal connection portion. The blocking portion of the gripping component and the corresponding blocking portion of the first lateral plate engage with each other to ensure that the blocking portion can enter an entry position of the first lateral plate only if the gripping component reaches a non-blocking position of the first lateral plate. 
     The present disclosure further provides a pull-out aiding device mountable on an object. The pull-out aiding device comprises a pulling component and a gripping component. The pulling component is movably or pullably coupled to a first lateral plate. The pulling component comprises a first pivotal connection portion and a corresponding portion. The gripping component comprises a second pivotal connection portion, an operating portion and a guiding portion. The second pivotal connection portion is pivotally connected to the first pivotal connection portion, such that the gripping component rotates about the second pivotal connection portion. Alternatively, the gripping component comprises a second lateral plate having a corresponding guiding portion. The corresponding guiding portion guides the gripping component resilient in engaging with an entry position of the second lateral plate corresponding. 
     Regarding the pull-out aiding device, the guiding portion or the corresponding guiding portion is an oblique surface, curved surface, arcuate surface, stepped surface or flat surface. 
     Regarding the pull-out aiding device, the entry position is a raised portion or dented portion. 
     Regarding the pull-out aiding device, the obstructing portion or the corresponding obstructing portion is a flat surface portion, oblique surface portion, arcuate surface portion, curved surface portion, stepped portion, engaging portion, hook portion, raised portion or dented portion. 
     Therefore, the present disclosure provides a pull-out aiding device and a board module, which are adapted to facilitate pushing and pulling a target received therein, are labor-saving, and are simple and convenient to operate. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a schematic view of a pull-out aiding device and target according to the first embodiment of the present disclosure. 
         FIG. 2  is a schematic view showing that a gripping component of the pull-out aiding device in the first embodiment of the present disclosure is located at a withdrawn position. 
         FIG. 3  is an enlarged view of portion A in  FIG. 1 . 
         FIG. 4  is a partial perspective view of the pull-out aiding device according to the first embodiment of the present disclosure. 
         FIG. 5  is another partial perspective view of the pull-out aiding device according to the first embodiment of the present disclosure. 
         FIG. 6  is a schematic view showing that a first limiting unit and a second limiting unit are coupled together according to another embodiment of the present disclosure. 
         FIG. 7  is an exploded view showing the first limiting unit and the second limiting unit according to another embodiment of the present disclosure. 
         FIG. 8  is a lateral view of the first limiting unit and the second limiting unit according to another embodiment of the present disclosure. 
         FIG. 9  is a schematic view of how to operate the first limiting unit and the second limiting unit of  FIG. 6 . 
         FIG. 10  is another schematic view of how to operate the first limiting unit and the second limiting unit of  FIG. 6 . 
         FIG. 11  is a schematic view showing that a pulling component comprises a bend segment. 
         FIG. 12  is a schematic view of a board module according to the second embodiment of the present disclosure. 
         FIG. 13  is another schematic view of the board module according to the second embodiment of the present disclosure. 
         FIG. 14  is a perspective view of the pull-out aiding device according to the third preferred embodiment of the present disclosure. 
         FIG. 15  is an exploded view of the pull-out aiding device according to the third preferred embodiment of the present disclosure. 
         FIG. 16  is a front cross-sectional view of the pull-out aiding device according to the third preferred embodiment of the present disclosure. 
         FIG. 17  is a cross-sectional view of the pull-out aiding device taken along line A-A according to the third preferred embodiment of the present disclosure. 
         FIG. 18  is a schematic view of a manually-manipulatable portion of the pull-out aiding device according to the third preferred embodiment of the present disclosure. 
         FIG. 19  is another perspective view of the pull-out aiding device according to the third preferred embodiment of the present disclosure. 
         FIG. 20  is another exploded view of the pull-out aiding device according to the third preferred embodiment of the present disclosure. 
         FIG. 21  is another front cross-sectional view the pull-out aiding device according to the third preferred embodiment of the present disclosure. 
         FIG. 22  is a schematic view of an abutting portion of the pull-out aiding device according to the third preferred embodiment of the present disclosure. 
         FIG. 23  is a front cross-sectional view of the pull-out aiding device according to the fourth preferred embodiment of the present disclosure. 
         FIG. 24  is a perspective view of the pull-out aiding device according to the fourth preferred embodiment of the present disclosure. 
         FIG. 25  is a schematic view of a leaf spring and an engaging portion of the pull-out aiding device according to the fourth preferred embodiment of the present disclosure. 
         FIG. 26A  is a schematic view of how to operate the pull-out aiding device according to the fourth preferred embodiment of the present disclosure. 
         FIG. 26B  is a schematic view of how to operate the pull-out aiding device according to the fourth preferred embodiment of the present disclosure. 
         FIG. 26C  is a schematic view of how to operate the pull-out aiding device according to the fourth preferred embodiment of the present disclosure. 
         FIG. 26D  is a schematic view of how to operate the pull-out aiding device according to the fourth preferred embodiment of the present disclosure. 
         FIG. 27A  is a schematic view of how to operate the pull-out aiding device according to the fourth preferred embodiment of the present disclosure. 
         FIG. 27B  is a schematic view of how to operate the pull-out aiding device according to the fourth preferred embodiment of the present disclosure. 
         FIG. 27C  is a schematic view of how to operate the pull-out aiding device according to the fourth preferred embodiment of the present disclosure. 
         FIG. 27D  is a schematic view of how to operate the pull-out aiding device according to the fourth preferred embodiment of the present disclosure. 
         FIG. 28  is a schematic view of the pull-out aiding device according to the fifth preferred embodiment of the present disclosure. 
         FIG. 29  is a schematic view of the pull-out aiding device according to the sixth preferred embodiment of the present disclosure. 
         FIG. 30  is a schematic view of the pull-out aiding device according to the seventh preferred embodiment of the present disclosure. 
         FIG. 31  is a schematic view of the pull-out aiding device according to the eighth preferred embodiment of the present disclosure. 
         FIG. 32  is a schematic view of the pull-out aiding device according to the eighth preferred embodiment of the present disclosure. 
         FIG. 33  is a schematic view of the pull-out aiding device according to the ninth preferred embodiment of the present disclosure. 
         FIG. 34  is a schematic view of the pull-out aiding device according to the ninth preferred embodiment of the present disclosure. 
         FIG. 35  is a schematic view of the pull-out aiding device according to the tenth preferred embodiment of the present disclosure. 
         FIG. 36  is a schematic view of the pull-out aiding device according to the tenth preferred embodiment of the present disclosure. 
         FIG. 37  is a schematic view of the pull-out aiding device according to the eleventh preferred embodiment of the present disclosure. 
         FIG. 38  is a schematic view of the pull-out aiding device according to the twelfth preferred embodiment of the present disclosure. 
         FIG. 39  is a schematic view of the pull-out aiding device according to the thirteenth preferred embodiment of the present disclosure. 
     
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     To facilitate understanding of the object, characteristics and effects of this present disclosure, embodiments together with the attached drawings for the detailed description of the present disclosure are provided. 
     Referring to  FIG. 1  through  FIG. 3 , the first embodiment of the present disclosure provides a pull-out aiding device  100  mountable on an object. The object comprises a first lateral plate  210  and an opposing second lateral plate  220 . A target  300 , such as a hard disk drive, memory, PCB (printed circuit board), casing, block or graphics card, is placed on the object. The object further comprises a top plate and a bottom plate (not shown) which are connected to the first lateral plate  210  and the second lateral plate  220 . The first lateral plate  210 , the second lateral plate  220 , the top plate and the bottom plate jointly define a containing space for receiving the target  300  and an opening in communication with the containing space. The containing space has therein a circuit board  400 . The circuit board  400  has thereon a plug port  410 . The plug port  410  is plugged into a receptacle (not shown) of the target  300 , such as a hard disk drive. 
     For instance, the object is a chassis, drawer, hole, groove, cover or board. 
     The pull-out aiding device  100  comprises a pulling component  110  and a gripping component  120 . The pulling component  110  is movably coupled to the first lateral plate  210 . The pulling component  110  comprises a first pivotal connection portion  111  and a corresponding portion  112  which are disposed at two opposite ends, respectively. The corresponding portion  112  abuts against the target  300 . The gripping component  120  comprises an abutting portion  121 , a second pivotal connection portion  122  and an operating portion  123 . The second pivotal connection portion  122  is positioned proximate to the abutting portion  121  and pivotally connected to the first pivotal connection portion  111 , such that the gripping component  120  rotates about the second pivotal connection portion and between a closed position (shown in  FIG. 1 ) and a withdrawn position (shown in  FIG. 2 ). The abutting portion  121  has a closed side  121 A and a protruding side  121 B. As shown in  FIG. 3 , distance D 1  between the protruding side  121 B and the second pivotal connection portion  122  is greater than distance D 2  between the closed side  121 A and the second pivotal connection portion  122 , but the present disclosure is not limited thereto. In a variant embodiment, distance D 1  between the protruding side  121 B and the second pivotal connection portion  122  is equal to or less than distance D 2  between the closed side  121 A and the second pivotal connection portion  122 . 
     Therefore, when the gripping component  120  is at closed position, the closed side  121 A is adjacent to or is positioned proximate to the first lateral plate  210 . By contrast, when the gripping component  120  is at withdrawn position, the protruding side  121 B is adjacent to or is positioned proximate to the first lateral plate  210 , and the corresponding portion  112  moves for a pull distance relative to the first lateral plate  210 . The pull distance depends on distance D 1  between the protruding side  121 B and the second pivotal connection portion  122  and distance D 2  between the closed side  121 A and the second pivotal connection portion  122 . For instance, the pull distance is 0.5 mm 500 mm. 
     In this embodiment, the gripping component  120  is substantially perpendicular to or not parallel to the first lateral plate  210  when the gripping component  120  is at closed position, and the gripping component  120  is substantially parallel to or not perpendicular to the first lateral plate  210  when the gripping component  120  is at withdrawn position. 
     As shown in  FIG. 1  and  FIG. 2 , the corresponding portion  112  has an L-shaped arm for engaging with the bottom side of the target  300 . Thus, when the pulling component  110  advances, it pushes the target  300 . However, the corresponding portion  112  may be of any shape and thus provided in the form of a hook member, raised member, dented member, stepped member, flat surface member, arcuate surface member, curved surface member, engaging member, box, casing or sleeve. 
     In this embodiment, the first lateral plate  210  has a rail unit  211  facing the second lateral plate  220 . The pulling component  110  is movably coupled to the rail unit  211 , such that the pulling component  110  moves relative to the first lateral plate  210 , away from the circuit board  400 , and toward the object opening. 
     When the gripping component  120  is operated to rotatably switch from closed position to withdrawn position, not only does the pulling component  110  move outward because the distance between the protruding side  121 B and the second pivotal connection portion  122  is greater than the distance between the closed side  121 A and the second pivotal connection portion  122 , but the target  300  is also pushed by the corresponding portion  112  to thereby separate from the plug port  410  and advance, thereby allowing the target  300  to move and protrude from the first lateral plate  210  and the second lateral plate  220 . After that, the user keeps pulling the gripping component  120  for a distance, such that the target  300  protrudes further, thereby allowing the target  300  to be easily gripped by hand and removed from the object. 
     Referring to  FIG. 4 , the first pivotal connection portion  111  and the second pivotal connection portion  122  are pivotally coupled together by a shaft  150 , but the present disclosure is not limited thereto. In a variant embodiment, the first pivotal connection portion  111  and the second pivotal connection portion  122  are coupled together by a hinge structure or engaged with each other by an engagement structure. 
     The pulling component  110  has a first limiting unit  113 . When the gripping component  120  is located at withdrawn position, mutual interference and limitation occurs between the first limiting unit  113  and a second limiting unit  212  on the first lateral plate  210 , thereby limiting the maximum length by which the pulling component  110  protrudes from the first lateral plate  210 . In this embodiment, the first limiting unit  113  is an oblong hole. The second limiting unit  212  is a protruding member correspondingly received in the oblong hole. The protruding member is a screw, screw nut or rivet, which is fastened to the first lateral plate  210 . The structural features of the first limiting unit  113  and the second limiting unit  212  are not limited thereto. In a variant embodiment, the first limiting unit  113  is a slot, and the second limiting unit  212  is correspondingly received in the hook member in the oblong hole. Alternatively, the second limiting unit  212  is an oblong hole or a slot, and the first limiting unit  113  is a protruding member or hook member correspondingly received in the oblong hole or slot. 
     The pull-out aiding device  100  comprises a damper  140 . The damper  140  is disposed on a surface of the gripping component  120 . The surface of the gripping component  120  faces the target  300 . The damper  140  prevents the gripping component  120  from hitting the target  300 . The damper  140  is, for example, a soft or resilient member, such as foam or sponge. 
     As shown in  FIG. 4  and  FIG. 5 , the pull-out aiding device  100  comprises a movable sleeve  130 . The movable sleeve  130  is movably coupled to the operating portion  123 . The movable sleeve  130  has a latch  131  whereby the movable sleeve  130  is latched to a latching hole  221  of the second lateral plate  220  to ensure that the gripping component  120  stays at closed position. The movable sleeve  130  comprises a manual push portion  132  which protrudes from the movable sleeve  130 . 
     In this embodiment, the pulling component  110  or the gripping component  120  is made of a metal or plastic. 
     Referring to  FIG. 6  and  FIG. 7 , which are schematic views of the first limiting unit  113  and the second limiting unit  212  according to another embodiment of the present disclosure. The first limiting unit  113  comprises two sliders  113 A,  113 B. The second limiting unit  212  comprises two quick-release rails  212 A,  212 B coupled to the sliders  113 A,  113 B, respectively. As shown in the diagrams, the sliders  113 A,  113 B slide along the quick-release rails  212 A,  212 B, respectively. 
     The movable sleeve  130  has latches  131  (two latches  131  in the diagrams). The second lateral plate  220  has thereon one or more latching holes  221  (not shown) which the latches  131  are latched to. The movable sleeve  130  further has two positioning-stopping portions  134  adapted to be stopped at the front edge of the second lateral plate  220 , such that the movable sleeve  130  and the second lateral plate  220  are fitted to each other. 
     In this embodiment, as shown in  FIGS. 6-8 , the sliders  113 A,  113 B each have a cylindrical portion  1131  and a flange portion  1132  formed beside the cylindrical portion  1131 . The quick-release rails  212 A,  212 B each have a rail portion  2121  and a quick-release hole portion  2122  which are in communication with each other. The cylindrical portions  1131  are movably disposed in the rail portions  2121 , respectively. The diameter of the flange portions  1132  is greater than the diameter of the cylindrical portions  1131  and the width of the rail portions  2121 , such that the sliders  113 A,  113 B can move within the rail portions  2121 , respectively. The diameter of the flange portions  1132  is less than the diameter of the quick-release hole portion  2122 ; thus, when the sliders  113 A,  113 B move and become corresponding in position to the quick-release hole portions  2122 , the flange portions  1132  penetrate the quick-release hole portions  2122 , respectively, thereby allowing the pull-out aiding device to be demounted from the first lateral plate. 
     The distance between the two sliders  113 A,  113 B is greater than, less than or equal to the distance between the quick-release hole portions  2122  of the two quick-release rails  212 A,  212 B. Therefore, as shown in  FIGS. 9 and 10 , the two sliders  113 A,  113 B cannot be simultaneously separated from the two quick-release rails  212 A,  212 B, respectively. Preferably, the quick-release hole portions  2122  of the quick-release rails  212 B are disposed at free ends of the rail portions  2121  (the free ends of the rail portions  2121  are positioned proximate to the second pivotal connection portion), and the quick-release hole portions  2122  of the quick-release rails  212 A are spaced apart from the free ends of the rail portions  2121  by a distance. Thus, when the pulling component  110  is withdrawn relative to the first lateral plate  210 , the sliders  113 A reach the quick-release hole portions  2122  of the quick-release rails  212 A, respectively, such that the flange portions  1132  of the sliders  113 A exit the quick-release hole portions  2122  of the quick-release rails  212 A, respectively. After that, the pulling component  110  is further withdrawn until the sliders  113 B reach the quick-release hole portions  2122  of the quick-release rails  212 B, respectively, and then the flange portions  1132  of the sliders  113 B exit the quick-release hole portions  2122  of the quick-release rails  212 B, respectively, thereby allowing the pull-out aiding device to be demounted from the first lateral plate. 
     As shown in  FIG. 11 , the pulling component  110  comprises a bend segment  115 . The bend segment  115  is positioned proximate to the first pivotal connection portion  111  and face the first lateral plate to bend by 2 to 90 degrees. The bend segment  115  has a protruding foolproof element  1151 . The foolproof element  1151  ensures that the target  300  is correctly mounted in place. When the target  300  is correctly mounted in place, the corresponding portion  112  and the foolproof element  1151  press against the opposing bottom and top sides of the target  300 , respectively. Thus, when the target  300  is not correctly mounted in place, the foolproof element  1151  interferes with the target  300  and thereby prevents the pull-out aiding device  100  from entering the object. When the pulling component  110  has not yet been withdrawn, the first lateral plate abuts against the bend segment  115 , such that the bend segment  115  is parallel to the first lateral plate  210 . It is only when the pulling component  110  is withdrawn relative to the first lateral plate  210  until the bend segment  115  is exposed that the gripping component  120 , the first pivotal connection portion  111 , the second pivotal connection portion  122 , the bend segment  115  and the foolproof element  1151  bend outward relative to the target  300 , such that the gripping component  120 , the first pivotal connection portion  111 , the second pivotal connection portion  122 , the bend segment  115  and the foolproof element  1151  are unlikely to hinder the removal of the target  300 , thereby enhancing ease of use. 
     The gripping component  120  is entirely made of plastic. The gripping component  120  has a hollowed-out opening whereby the target  300  is visible from outside. 
     Referring to  FIG. 6 , the movable sleeve  130  has two latches  131  and two positioning-stopping portions  134  which are stopped at the front edge of the second lateral plate  220 , such that the movable sleeve  130  and the second lateral plate  220  are fitted to each other. In this embodiment, the movable sleeve  130  is connected to the operating portion  123  by compression springs. 
     Referring to  FIG. 4 , a resilient element is fitted around the shaft  150  between the first pivotal connection portion  111  of the pulling component  110  and the second pivotal connection portion  122  of the gripping component  120 . the resilient element resiliently abuts against the pulling component  110  and the gripping component  120 , such that the gripping component  120  undergoes automatic rotation and position restoration after being opened. The resilient element is a helical spring, torsion spring, resilient cylinder or leaf spring. 
     The gripping component  120  has a return hook portion  129 . The return hook portion  129  is formed at one end (shown in  FIG. 3 ) of the gripping component  120 , wherein the second pivotal connection portion  122  is formed at the end (shown in  FIG. 3 ) of the gripping component  120 . The second lateral plate  220  has a return engaging hole. When the gripping component  120  is closed, the return hook portion  129  engages with the return engaging hole. 
     Referring to  FIG. 12  and  FIG. 13 , there are shown schematic views of a board module  200  capable of facilitating pulling according to the second embodiment of the present disclosure. 
     Referring to  FIG. 12 , the board module  200  comprises a first lateral plate  210  and the pull-out aiding device  100  of the first embodiment. The pulling component  110  of the pull-out aiding device  100  is movably coupled to the first lateral plate  210 . 
     Referring to  FIG. 13 , the board module  200  comprises a first lateral plate  210  and the pull-out aiding device  100  of the second embodiment. The pulling component  110  of the pull-out aiding device  100  is movably coupled to the first lateral plate  210 . In this aspect, the first lateral plate  210  comprises a receiving recess  213 . The pulling component  110  is received in the receiving recess  213 . 
     In the second embodiment of the present disclosure, the pull-out aiding device  100  and the board module  200  facilitate taking out a target received therein and thus are labor-saving, and are simple and convenient to operate. 
     Referring to  FIG. 14  through  FIG. 22  and  FIG. 23  through  FIG. 25 , as shown in the diagrams, the pull-out aiding device  100  in this embodiment comprises a movable sleeve  130  and a gripping component  120  movably fitted to the movable sleeve  130 . The movable sleeve  130  has at least one latch  131 , a receiving space  133 , and an engaging portion  1340  engaging with a first object  500 . The gripping component  120  has an operating portion  123  and a second pivotal connection portion  122  disposed at the operating portion  123 . One end of the operating portion  123  is movably coupled to the receiving space  133  of the movable sleeve  130 . The second pivotal connection portion  122  is movably coupled to a second object  600  outside the receiving space  133 . The latch  131  is a bump formed on any surface of the movable sleeve  130 . Referring to  FIG. 26B , the movable sleeve  130  is pushed with the latch  131 , such that the engaging portion  1340  of the movable sleeve  130  separates from the first object  500 , thereby allowing the second object  600  to separate from the first object  500 . The pull-out aiding device  100  in this embodiment further comprises a fastening portion  135  which connects the receiving space  133  of the movable sleeve  130  and the operating portion  123  of the gripping component  120 ; thus, the movable sleeve  130  and the gripping component  120  restrictively move (restrictively slide or restrictively rotate) relative to each other through the fastening portion  135 . The pull-out aiding device  100  in this embodiment further comprises a resilient element  136  disposed in the receiving space  133  of the movable sleeve  130  or at any specified point. The resilient element  136  has one end abutting against the receiving space  133  of the movable sleeve  130  and another end abutting against the operating portion  123  of the gripping component  120 , such that the movable sleeve  130  and gripping component  120  restrictively move and undergo position restoration relative to each other through the resilient element  136 . 
     Referring to  FIG. 18 , the operating portion  123  of the gripping component  120  has a manually-manipulatable portion  1231 . The manually-manipulatable portion  1231  is a bump formed at a bottom portion of the operating portion  123  of the gripping component  120 . The manually-manipulatable portion  1231  and the latch  131  face the same direction. Referring to  FIG. 28 , the manually-manipulatable portion  1231  and the latch  131  face downward. A finger (for example, thumb) presses the left side of the latch  131 , and another finger (for example, index finger) presses the right side of the manually-manipulatable portion  1231 , such that the movable sleeve  130  moves toward the gripping component  120 . 
     Referring to  FIG. 13  and  FIG. 14 , in this embodiment, the movable sleeve  130  and the gripping component  120  restrictively slide toward each other through the fastening portion  135 , such that the engaging portion  1340  and the first object  500  slidingly engage with each other and separate from each other. The movable sleeve  130  has a fastening recess  137  in communication with the receiving space  133 , and thus the fastening portion  135  is fastened to the fastening recess  137 . The fastening recess  137  is a sliding slot  1371  formed on one or two sidewalls of the receiving space  133 ; thus, the fastening portion  135  slides in the sliding slot  1371 , thereby allowing the movable sleeve  130  and the gripping component  120  to restrictively slide relative to each other. Referring to  FIG. 29  through  FIG. 31 , the operating portion  123  of the gripping component  120  has a sliding oblong hole  1232  in communication with the receiving space  133 ; thus, the fastening portion  135  slides within the sliding oblong hole  1232  to thereby cause the movable sleeve  130  and the gripping component  120  to restrictively slide relative to each other. 
     Referring to  FIG. 23  through  FIG. 25 , in this embodiment, the movable sleeve  130  and the gripping component  120  restrictively rotate relative to each other through the fastening portion  135 , such that the engaging portion  1340  and the first object  500  rotatably engage with each other and separate from each other. Likewise, the movable sleeve  130  has the fastening recess  137  in communication with the receiving space  133 , such that the fastening portion  135  is fastened to the fastening recess  137 . However, the fastening recess  137  is a positioning hole  1372  formed on one or two sidewalls of the receiving space  133 ; thus, the fastening portion  135  rotates within the positioning hole  1372 , thereby allowing the movable sleeve  130  and the gripping component  120  to restrictively rotate relative to each other. 
     Referring to  FIG. 14  and  FIG. 15 , or  FIG. 23  and  FIG. 25 , according to the present disclosure, the fastening portion  135  is integrally formed with or fitted to a cylinder  1351  of the operating portion  123  of the gripping component  120 . Preferably, the operating portion  123  of the gripping component  120  has a fastening hole  1352 , and the cylinder  1351  is penetratingly disposed in, engaged with, riveted to, expanded to, adhered to or fastened to the fastening hole  1352 . Alternatively, the fastening portion  135  is integrally formed with or fitted to the cylinder  1351  of the movable sleeve  130 . Preferably, the operating portion  123  of the gripping component  120  has a fastening hole  1352 , and the cylinder  1351  is penetratingly disposed in, engaged with, riveted to, expanded to, adhered to or fastened to the fastening hole  1352 . Therefore, the cylinder  1351  is penetratingly disposed in the sliding slot  1371  and slides therein or is penetratingly disposed in the positioning hole  1372  and rotates therein, thereby undergoing restrictive sliding or restrictive rotation. Referring to  FIG. 20 , according to the present disclosure, the fastening portion  135  is integrally formed with or fitted to the cylinder  1351  of the movable sleeve  130 , and the cylinder  1351  penetrates the receiving space  133 . Preferably, the movable sleeve  130  has at least one fastening hole  1352  in communication with the receiving space  133 , and the cylinder  1351  is penetratingly disposed in, engaged with, riveted to, expanded to, adhered to or fastened to the fastening hole  1352 . 
     Referring to  FIG. 14  through  FIG. 25 , according to the present disclosure, the engaging portion  1340  of the movable sleeve  130  is a left-opening or right-opening hook as shown in the diagrams. The hook is preferably a triangular hook or wedge-shaped hook which protrudes from the movable sleeve  130  and comprises a guiding oblique surface  1341  and a hook surface  1342  connected to the guiding oblique surface  1341 , as shown in  FIG. 26A . Thus, the first object  500  is pressed inward with the guiding oblique surface  1341  while being engaged with the hook surface  1342 . 
     Referring to  FIG. 14  through  FIG. 22 , according to the present disclosure, the gripping component  120  preferably has at least one U-shaped abutting portion  121  which comprises a first push element  1211  and a second push element  1212  which are formed at one end of the gripping component  120 . An engaging recess  1213  is disposed between the first push element  1211  and the second push element  1212 . Referring to  FIG. 26A , the second push element  1212  and the engaging recess  1213  engage with the first object  500  through the first push element  1211  of the abutting portion  121 . Referring to  FIG. 26C , to remove the second object  600  easily, the abutting portion  121  pushes the first object  500  by the principle of leverage. 
     Referring to  FIG. 14  through  FIG. 22 , according to the present disclosure, the second pivotal connection portion  122  of the gripping component  120  is preferably a protruding post integrally formed with the operating portion  123  or a protruding post, engaging post or penetrating hole fitted to the operating portion  123 . Referring to  FIG. 26A , the protruding post, engaging post or penetrating hole is movably disposed on the second object  600  and is preferably penetratingly disposed in, engaged with, riveted to, expanded to or fastened to the second object  600 , such that the pull-out aiding device  100  and the second object  600  can rotate relative to each other. 
     Referring to  FIG. 14  through  FIG. 22 , according to the present disclosure, the receiving space  133  of the movable sleeve  130  has therein a through-hole-shaped sliding space  1330 . One end of the operating portion  123  of the gripping component  120  is penetratingly disposed in the sliding space  1330 . The operating portion  123  and the sliding space  1330  are slidingly connected by the fastening portion  135 . Therefore, the movable sleeve  130  and the gripping component  120  restrictively slide relative to each other. The resilient element  136  is preferably a helical spring (as shown in  FIG. 14  through  FIG. 19 ), leaf spring or resilient cylinder, such that the resilient element  136  has one end abutting against the sliding space  1330  and another end abutting against the operating portion  123 , such that the movable sleeve  130  and the gripping component  120  restrictively move and undergo position restoration relative to each other through the resilient element  136 . 
     Referring to  FIG. 23  or  FIG. 25 , according to the present disclosure, the receiving space  133  of the movable sleeve  130  has therein an arcuate sliding space  1331 . One end of the operating portion  123  of the gripping component  120  is penetratingly disposed in the sliding space  1331 . The operating portion  123  and the sliding space  1331  are rotatably connected by the fastening portion  135 . Therefore, the movable sleeve  130  and the gripping component  120  restrictively rotate relative to each other. The resilient element  136  is preferably a helical spring (shown in  FIG. 23 ), leaf spring (as shown in  FIG. 25 ) or resilient cylinder, such that the resilient element  136  has one end abutting against the sliding space  1331  and another end abutting against the operating portion  123 ; thus, the movable sleeve  130  and the gripping component  120  restrictively move and undergo position restoration relative to each other through the resilient element  136 . 
     According to the present disclosure, the first object  500  is a chassis, casing, drawer cabinet, window frame or any other object, whereas the second object  600  is a circuit board card, drawer, window or any other object. Referring to  FIG. 26A , in the first preferred embodiment of the present disclosure, a quick-release rod element is movably fitted to the second object  600  through the second pivotal connection portion  122  of the gripping component  120  and thereby engaged with one side of the first object  500  through the engaging portion  1340  of the movable sleeve  130 , whereas the abutting portion  121  of the gripping component  120  is engaged with the other side of the first object  500 , such that the second object  600  is slidingly fitted to the first object  500 . As shown in  FIG. 26B , to remove the second object  600 , the user pushes a latch  14  of the movable sleeve  130  by hand, such that the movable sleeve  130  restrictively slides, whereas the engaging portion  1340  separates from the first object  500 . As shown in  FIG. 26C , the abutting portion  121  of the gripping component  120  pushes the first object  500  by the principle of leverage. Therefore, the second object  600  is slidingly withdrawn. As shown in  FIG. 26D , the movable sleeve  130  can undergo position restoration with the resilient element  136 , despite separation of the second object  600  and the first object  500  and cessation of exertion of a force on the latch  14 . 
     Referring to  FIG. 27A , in the fourth preferred embodiment of the present disclosure, likewise, the quick-release rod element is movably fitted to the second object  600  through the second pivotal connection portion  122  of the gripping component  120  and thereby engaged with one side of the first object  500  through the engaging portion  1340  of the movable sleeve  130 , whereas the abutting portion  121  of the gripping component  120  is engaged with the other side of the first object  500 , such that the second object  600  is slidingly fitted to the first object  500 . Referring to  FIG. 27B , to remove the second object  600 , the user pushes the latch  14  of the movable sleeve  130  by hand, such that the movable sleeve  130  restrictively rotates, whereas the engaging portion  1340  separates from the first object  500 . Referring to  FIG. 27C , the abutting portion  121  of the gripping component  120  pushes the other side of the first object  500  by the principle of leverage. Therefore, the second object  600  is slidingly withdrawn. Referring to  FIG. 27D , the movable sleeve  130  can undergo position restoration with the resilient element  136 , despite separation of the second object  600  and the first object  500  and cessation of exertion of a force on the latch  14 . 
     Referring to  FIG. 28 , the movable sleeve  130  of the pull-out aiding device  100  has a body portion  138 , whereas the operating portion  123  of the gripping component  120  has a receiving space  1233  movably coupled to the body portion  138 . The receiving space  1233  of the gripping component  120  and the body portion  138  of the movable sleeve  130  are connected by a fastening portion  135 . The movable sleeve  130  and the gripping component  120  restrictively move relative to each other through the fastening portion  135 . The receiving space  1233  has a resilient element  136 . The resilient element  136  has one end abutting against the receiving space  1233  and another end abutting against the body portion  138 , such that the movable sleeve  130  and the gripping component  120  restrictively move and undergo position restoration relative to each other through the resilient element  136 . 
     Referring to  FIG. 29 , in this embodiment, the operating portion  123  of the gripping component  120  has a containing portion  1234 . The movable sleeve  130  is movably coupled to the containing portion  1234 . The latch  131  of the movable sleeve  130  is movably fitted to a manual push portion  132  of the movable sleeve  130 . The latch  131  has a movement surface  1311 . The movement surface  1311  abuts against a corresponding movement surface  1321  of the manual push portion  132  to drive the latch  131  moving relative to the containing portion  1234 . A resilient element  141  is disposed between the latch  131  and the manual push portion  132 . Two ends of the resilient element  141  abut against the latch  131  and the manual push portion  132 , respectively. The pulling component  110  has a pulling portion  1101 . The pulling portion  1101  pulls a corresponding object (not shown). The pulling component  110  has a fixed connection portion  1102  fixedly connected to the corresponding object. 
     To start operating the pull-out aiding device, the user presses the manual push portion  132 , such that the movement surface  1321  of the manual push portion  132  and the corresponding movement surface  1311  of the latch  131  abut against each other to thereby compress the resilient element  141 . Since the movement surface  1321  and the corresponding movement surface  1311  abut against each other, the manual push portion  132  drives the latch  131  moving toward the gripping component  120 , such that the receiving space of the containing portion  1234  diminishes (or enlarges) gradually in response to the movement; thus, a portion of the latch  131  enters the containing portion  1234  to thereby drive the latch  131  moving, thereby separating the latch  131  and the second lateral plate. As soon as the user stops pressing the manual push portion  132 , the resilient element  141  generates a resilient restoring force under which the latch  131  is pushed to allow the manual push portion  132  to undergo position restoration, such that the latch  131  is latched to the second lateral plate (not shown). 
     Referring to  FIG. 30 , in this embodiment, the latch  131  of the movable sleeve  130  has a containing portion  1312 , and the operating portion  123  of the gripping component  120  is movably coupled to the containing portion  1312 . The latch  131  is movably fitted to a manual push portion  132 . The containing portion  1312  has therein a first resilient element  142 . Two ends of the first resilient element  142  abut against the latch  131  and the operating portion  123 , respectively. The second pivotal connection portion  122  has a second resilient element  143 . Two ends of the second resilient element  143  abut against the pulling component  110  and the gripping component  120 , respectively. 
     To start operating the pull-out aiding device, the user presses the manual push portion  132 , such that the manual push portion  132  drives the latch  131  moving toward the gripping component  120  to thereby compress the first resilient element  142 ; thus, a portion of the operating portion  123  moves into the containing portion  1312 , thereby separating the latch  131  and the second lateral plate. As soon as the user stops pressing the manual push portion  132 , the first resilient element  142  generates a resilient restoring force under which the latch  131  is pushed to allow the manual push portion  132  to undergo position restoration, such that the latch  131  is latched to the second lateral plate. Owing to the movement of the gripping component  120 , the second resilient element  143  effects automatic position restoration. 
     Referring to  FIG. 31  and  FIG. 32 , in this embodiment, the manual push portion  132  of the movable sleeve  130  has a checking portion  1322  and a movable portion  1323  movable by the checking portion  1322 . The latch  131  and the operating portion  123  are connected by at least one connecting member  1313 . The containing portion  1234  has therein a resilient element  144 . Two ends of the resilient element abut against the latch and the operating portion, respectively. 
     To operate the pull-out aiding device, the user presses the manual push portion  12  downward, such that the manual push portion  12  moves within the containing portion  1234  toward the gripping component  120  because of coordination of the checking portion  1322  and the movable portion  1323 , whereas the movement surface  1311  and the corresponding movement surface  1321  abut against each other; hence, the latch  131  moves relative to the connecting member  1313  and compresses the resilient element  22 , and thus the manual push portion  12  moves the latch  131  within the containing portion  1234 . 
     Referring to  FIG. 33  and  FIG. 34 , in this embodiment, a fastening portion  1314  of the latch  131  of the movable sleeve  130  is movably fitted to a manual push portion  132  of the movable sleeve  130 . As soon as the user moves the manual push portion  132 , the fastening portion  1314  causes the latch  131  to be fastened to or separated from the second lateral plate  220 . 
     Referring to  FIG. 35  and  FIG. 36 , in this embodiment, the latch  131  of the movable sleeve  130  moves relative to a manual push portion  132  of the movable sleeve  130  and interferes therewith. The manual push portion  132  is movably fitted to the operating portion  123  by a fastening portion  1314 ; thus, as soon as the user moves the manual push portion  132 , the latch  131  is fastened to or separated from the second lateral plate  220 . 
     Referring to  FIG. 37 , in this embodiment, the pulling component  110  further comprises a corresponding obstructing portion  116 , whereas the gripping component  120  further comprises an obstructing portion  124 . The obstructing portion  124  of the gripping component  120  is obstructed by the corresponding obstructing portion  116  of the pulling component  110  to limit the included angle between the pulling component  110  and the gripping component  120  in operation. The included angle is 90 degrees (or around 90 degrees) or ranges from 70 degrees (or around 70 degrees) to 110 degrees (or around 110 degrees). 
     In an embodiment, the obstructing portion  124  or the corresponding obstructing portion  116  is a flat surface portion, oblique surface portion, arcuate surface portion, curved surface portion, stepped portion, engaging portion, hook portion, raised portion or dented portion. Therefore, the present disclosure meets practical needs. 
     Referring to  FIGS. 38 and 39 , in this embodiment, the gripping component  120  further comprises a blocking portion  125 , whereas the first lateral plate  210  has a corresponding blocking portion  214 . The blocking portion  125  of the gripping component  120  and the corresponding blocking portion  214  of the first lateral plate  210  engage with each other to ensure that the return hook portion  129  can engage with an entry position of the first lateral plate  210  only if the gripping component  120  reaches the entry position of the first lateral plate  210  to enable the return hook portion  129  to engage with the first lateral plate  210 . Furthermore, the blocking portion  125  of the gripping component  120  and the corresponding blocking portion  214  of the first lateral plate  210  engage with each other to ensure that the blocking portion  214  can enter an entry position of the first lateral plate  210  only if the gripping component  120  reaches a non-blocking position of the first lateral plate  210 . In an embodiment, the blocking portion  125  or the corresponding blocking portion  214  is a flat surface portion, oblique surface portion, arcuate surface portion, curved surface portion, stepped portion, engaging portion, hook portion, raised portion or dented portion, such that the present disclosure meets practical needs. In an embodiment, the entry position of the first lateral plate  210  is a flat surface portion, oblique surface portion, arcuate surface portion, curved surface portion, stepped portion, engaging portion, hook portion, raised portion or dented portion, such that the present disclosure meets practical needs. In an embodiment, the blocking portion  125  is the return hook portion  129 . 
     In this embodiment, the gripping component  120  further has a guiding portion  126 , and the second lateral plate  220  has a corresponding guiding portion  222 . The guiding portion  126  or the corresponding guiding portion  222  is an oblique surface, curved surface, arcuate surface, stepped surface or flat surface. The corresponding guiding portion  222  of the second lateral plate  220  guides the gripping component  120  to resiliently engage with an entry position of the second lateral plate  220 . In an embodiment, the entry position of the second lateral plate  220  is a flat surface portion, oblique surface portion, arcuate surface portion, curved surface portion, stepped portion, engaging portion, hook portion, raised portion or dented portion, such that the present disclosure meets practical needs. 
     In an embodiment, the entry position is a raised portion or dented portion. Therefore, the present disclosure meets practical needs. 
     While the present disclosure has been described by means of specific embodiments, numerous modifications and variations could be made thereto by those skilled in the art without departing from the scope and spirit of the present disclosure set forth in the claims.