Patent Publication Number: US-11039546-B2

Title: Pull-out aiding device and chassis-wall module with pull-out aiding function

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 invention relates to a pull-out aiding device and a chassis-wall module with pull-out aiding function. The pull-out aiding device can be assembled to a chassis, a cabinet, an enclosure and the like to help a user conveniently pull out a corresponding apparatus, such as a hard disk, from the chassis, the cabinet or the enclosure. 
     2. Description of the Related Art 
     A conventional chassis is usually provided with an unloading mechanism, which is also referred to as a card ejection mechanism. The function of the unloading mechanism is to separate a hard disk or a circuit board from a connection port arranged in the chassis. When a user turns the unloading mechanism, the hard disk or the circuit board is pushed forward and accordingly becomes separated from the connection port. However, the unloading mechanism of the conventional chassis can only move the hard disk or the circuit board by a relatively small distance, which is usually in the range of 3 mm to 5 mm. Being hindered by partitioning walls of the chassis or other apparatus parallelly arranged at two sides of the chassis, the user often could not easily or conveniently remove the ejected card from the chassis. 
     BRIEF SUMMARY OF THE INVENTION 
     A primary object of the present invention is to overcome the disadvantage of the conventional chassis by providing a pull-out aiding device that can be easily, effortlessly and conveniently operated to pull out an apparatus from the chassis. 
     To achieve the above and other objects, the pull-out aiding device provided according to the present invention is configured for mounting on an object, which includes a first partitioning wall and a second partitioning wall located opposite to each other. In the object, a corresponding apparatus can be mounted. The pull-out aiding device includes a pulling member and a handle member. The pulling member is movably coupled with the first partitioning wall and includes a first pivot section and an abutting section. The handle member includes a second pivot section and an operating section. The second pivot section is pivotally connected to the first pivot section, such that the handle member is turnable about the second pivot section. 
     The handle member of the pull-out aiding device also includes a pressing section, which has a closing edge and a pulling-out edge. A vertical distance between the pulling-out edge and the second pivot section can be larger than, equal to or smaller than a vertical distance between the closing edge and the second pivot section 
     The handle member of the pull-out aiding device is turnable about the second pivot section between a closed position and a pulled-out position. The closing edge is in contact with or located adjacent to the first partitioning wall when the handle member is in the closed position, and the pulling-out edge is in contact with or located adjacent to the first partitioning wall when the handle member is in the pulled-out position. And, the abutting section of the pulling member is moved forward relative to the first partitioning wall by a pulling distance when the handle member is in the pulled-out position. 
     The pulling member of the pull-out aiding device can include a bent section, and the bent section is located adjacent to the first pivot section and inclined toward the first partitioning wall by 2 to 90 degrees. 
     The pulling member of the pull-out aiding device can be provided with a male foolproof retainer or a female foolproof retainer. 
     According to the present invention, the first partitioning wall is provided with a guide rail unit, to which the pulling member is movably coupled. 
     The pull-out aiding device according to the present invention further includes a releasable fastening element, which is movably connected to the operating section of the handle member and includes a latch for engaging with a latch hole provided on the second partitioning wall. 
     The pull-out aiding device according to the present invention can further include a shock-absorbing member, which is disposed on one side of the handle member facing toward the corresponding apparatus. 
     According to the pull-out aiding device of the present invention, the first pivot section and the second pivot section can be pivotally turnably connected to or engaged with each other via a shaft. 
     The pull-out aiding device according to the present invention can further include an elastic element, which is fitted on the shaft, the pulling member or the handle member to elastically press against the pulling member or the handle member. 
     The pulling member of the pull-out aiding device is provided with a first limiting unit and the first partitioning wall is provided with a second limiting unit. The first and the second limiting unit interfere with each other when the handle member is in the pulled-out position. 
     According to an embodiment of the present invention, the first limiting unit is an elongated hole or an elongated slot and the second limiting unit is a protruded body, a hooked body or a fastening body adapted to be correspondingly received in the elongated hole or the elongated slot of the first limiting unit. 
     According to another embodiment of the present invention, the second limiting unit is an elongated hole or an elongated slot and the first limiting unit is a protruded body, a hooked body or a fastening body adapted to be correspondingly received in the elongated hole or the elongated slot of the second limiting unit. 
     According to an embodiment of the present invention, the first limiting unit includes two flanged bosses and the second limiting unit includes two quick-release guide rails adapted to associate with the two flanged bosses of the first limiting unit in a one-to-one correspondence. 
     According to the above embodiment, the flanged bosses respectively have a body portion and a flange portion formed around a free end of the body portion and the quick-release guide rails respectively have a rail portion and a quick-release hole portion communicable with the rail portion. The body portions of the flanged bosses are separately movably received in the corresponding rail portions; the flange portions of the flanged bosses have a diameter larger than a diameter of the body portions and a width of the rail portions; and the diameter of the flange portions is smaller than a diameter of the quick-release hole portions. 
     According to the above embodiment, a distance between the two flanged bosses is larger than a distance between the two quick-release hole portions of the two quick-release guide rails. 
     According to another embodiment of the present invention, the first limiting unit is in the form of a guide rod and located at an end of the pulling member having the first pivot section formed thereat, the second limiting unit is in the form of a supporting seat provided with a guide rail, and the guide rod is engaged with the guide rail to move in along a path defined by the guide rail. 
     According to an embodiment of the present invention, the handle member includes a limiting section, which is located adjacent to the closing edge of the pressing section, and the first partitioning wall is correspondingly provided with a mating limiting section. The limiting section is adapted to limit the mating limiting section to stop the handle member from moving relative to the first partitioning wall. 
     According to an embodiment of the present invention, the abutting section of the pulling member is provided with a retaining hole and the corresponding apparatus is provided with a projected interfering section corresponding to the retaining hole; and the retaining section is adapted to engage with the interfering section. 
     According to an embodiment of the present invention, the handle member includes a return hook, which is arranged at an end of the handle member having the second pivot section formed thereat. 
     To achieve the above and other objects, the present invention also provides a pull-out aiding device for mounting to an object, which includes a first partitioning wall and is configured to match a corresponding apparatus. The pull-out aiding device includes a pulling member and a handle member. The pulling member includes a first coupling section and an abutting section, and the abutting section is configured to move the corresponding apparatus. The handle member includes a rotation shaft portion, a second coupling section and an operating section. The second coupling section and the first coupling section are connected together while they are movable relative to each other. The handle member is turnable about the rotation shaft portion; and the rotation shaft portion is movably associated with the first partitioning wall. 
     According to an embodiment of the present invention, the second coupling section of the pull-out aiding device is a hole and the first coupling section can be any one of a protruded body, a hook, a recessed body and a fastening body adapted to extend through the hole of the second coupling section. 
     According to another embodiment of the present invention, the second coupling section is in the form of a hook, and the first coupling section can be any one of a hook, a hole, a protruded body, a recessed body and a fastening body adapted to engage with the hook of the second coupling section. 
     With the above arrangements, the pull-out aiding device and the chassis-wall module according to the present invention can be easily and effortlessly operated to help a user conveniently remove a corresponding apparatus from a chassis. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The structure and the technical means adopted by the present invention to achieve the above and other objects can be best understood by referring to the following detailed description of the preferred embodiments and the accompanying drawings, wherein 
         FIG. 1  is a schematic view showing a pull-out aiding device according to a first embodiment of the present invention and a corresponding apparatus to be pulled out with the pull-out aiding device. 
         FIG. 2  is a schematic view showing a handle member of the pull-out aiding device of  FIG. 1  in a pulled-out position. 
         FIG. 3  is an enlarged view of the circled area A of  FIG. 1 . 
         FIG. 4  is a fragmentary perspective view of the pull-out aiding device of  FIG. 1 . 
         FIG. 5  is another fragmentary perspective view of the pull-out aiding device of  FIG. 1 . 
         FIG. 6  is an assembled perspective view showing first and second limiting units for a first variation of the pull-out aiding device according to the first embodiment of the present invention. 
         FIG. 7  is an exploded view of  FIG. 6 . 
         FIG. 8  is a side view showing the first limiting unit for the first variation of the pull-out aiding device according to the first embodiment of the present invention. 
         FIG. 9  shows how the first and second limiting units of  FIG. 6  work to limit the movement of the pull-out aiding device. 
         FIG. 10  is another view showing how the first and second limiting units of  FIG. 6  work to limit the movement of the pull-out aiding device. 
         FIG. 11  is a schematic view showing a pulling member of the pull-out aiding device according to the first embodiment of the present invention includes a bent section. 
         FIG. 12  is a schematic view showing a pull-out aiding device according to a second embodiment of the present invention and a corresponding apparatus to be pulled out with the pull-out aiding device. 
         FIG. 13  is a schematic view showing a handle member of the pull-out aiding device of  FIG. 12  in a pulled-out position. 
         FIG. 14  shows a first variation of the pull-out aiding device according to the second embodiment of the present invention. 
         FIG. 15  is a fragmentary top plan view of  FIG. 14 . 
         FIG. 16  is another fragmentary top plan view of  FIG. 14 . 
         FIG. 17  is a schematic view of a second variation of the pull-out aiding device according to the second embodiment of the present invention. 
         FIG. 18  is a schematic view of a third variation of the pull-out aiding device according to the second embodiment of the present invention. 
         FIG. 19  is a schematic view of a fourth variation of the pull-out aiding device according to the second embodiment of the present invention. 
         FIG. 20  is a schematic view showing a pull-out aiding device according to a third embodiment of the present invention and a corresponding apparatus to be pulled out with the pull-out aiding device. 
         FIG. 21  is a schematic view of a variation of the pull-out aiding device according to the third embodiment of the present invention. 
         FIG. 22  is a perspective view showing a chassis-wall module according to a fourth embodiment of the present invention. 
         FIG. 23  is a plan view showing a variation of the chassis-wall module according the fourth embodiment of the present invention. 
     
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     The present invention will now be described with some preferred embodiments thereof and by referring to the accompanying drawings. For the purpose of easy to understand, elements that are the same in the preferred embodiments are denoted by the same reference numerals. 
     Please refer to  FIGS. 1 to 3 . A pull-out aiding device  100  according to a first embodiment of the present invention is configured for mounting on an object, which includes a first partitioning wall  210  or/and a second partitioning wall  220  located opposite to each other. In the object, a corresponding apparatus  300 , such as a hard disk, can be mounted. The object also includes a top wall and a bottom wall (not shown), which are connected to the first and the second partitioning wall  210 ,  220 . That is, the first partitioning wall  210 , the second partitioning wall  220 , the top wall and the bottom wall together define a receiving space, in which the corresponding apparatus  300  is received, and an opening communicating with the receiving space. A circuit board  400  is arranged in the receiving space and has a connection port  410  provided thereon for connecting to a corresponding connection jack (not shown) on the corresponding apparatus  300 , such as a hard disk. 
     The object can be, for example, a chassis, a drawer, a hole, a recess, a cover or a wall panel. 
     The pull-out aiding device  100  includes a pulling member  110  and a handle member  120 . The pulling member  110  is movably coupled with the first partitioning wall  210 , and includes a first pivot section  111  (see  FIG. 4 ) and an abutting section  112 , which are located at two opposite ends of the pulling member  110 . The abutting section  112  is abutted against the corresponding apparatus  300  for pushing the latter forward. The handle member  120  includes a pressing section  121 , a second pivot section  122  and an operating section  123 . The second pivot section  122  is located adjacent to the pressing section  121  and pivotally connected to the first pivot section  111 , such that the handle member  120  is turnable about the second pivot section  122  to move between a closed position, as shown in  FIG. 1 , and a pulled-out position, as shown in  FIG. 2 . The pressing section  121  has a closing edge  121 A and a pulling-out edge  121 B. As shown in  FIG. 3 , a vertical distance D 1  between the pulling-out edge  121 B and the second pivot section  122  is larger than a vertical distance D 2  between the closing edge  121 A and the second pivot section  122 . However, it is not necessary for the vertical distance D 1  to be larger than the vertical distance D 2 . In other possible arrangements, the vertical distance D 1  between the pulling-out edge  121 B and the second pivot section  122  can be equal to or smaller than the vertical distance D 2  between the closing edge  121 A and the second pivot section  122 . 
     When the handle member  120  is in the closed position, the closing edge  121 A is in contact with or located adjacent to the first partitioning wall  210 . When the handle member  120  is in the pulled-out position, the pulling-out edge  121 B is in contact with or located adjacent to the first partitioning wall  210  and the abutting section  112  is moved forward relative to the first partitioning wall  210  by a pulling distance, which has relation to the vertical distance D 1  between the pulling-out edge  121 B and the second pivot section  122  and the vertical distance D 2  between the closing edge  121 A and the second pivot section  122 . The pulling distance can be in the range of, for example, 0.5 mm to 500 mm. 
     In the first embodiment, when the handle member  120  is in the closed position, it is located perpendicular or non-parallel to the first partitioning wall  210 . On the other hand, when the handle member  120  is in the pulled-out position, it is located in parallel or non-perpendicular to the first partitioning wall  210 . 
     As can be seen in  FIGS. 1 and 2 , the abutting section  112  is in the form of an L-shaped arm for abutting against, for example, a rear side of the corresponding apparatus  300 . When the pulling member  110  is moved forward, the abutting section  112  also pushes the corresponding apparatus  300  forward. However, it is understood the abutting section  112  is not necessarily limited to the L-shaped arm but can be other differently shaped structures, such as a hook, a latch or a stepped structure. 
     In the first embodiment, the first partitioning wall  210  is provided on one side facing the second partitioning wall  220  with a guide rail unit  211 , to which the pulling member  110  is movably coupled, so that the pulling member  110  can be moved relative to the first partitioning wall  210  in a direction away from the circuit board  400  and toward the opening of the object. 
     When the handle member  120  is operated to turn from the closed position to the pulled-out position, since the vertical distance D 1  between the pulling-out edge  121 B of the pressing section  121  and the second pivot section  122  is larger than the vertical distance D 2  between the closing edge  121 A of the pressing section  121  and the second pivot section  122 , the pulling member  110  is brought by the handle member  120  to move outward relative to the first partitioning wall  210 . At this point, the abutting section  112  pushes the corresponding apparatus  300  forward to thereby separate the latter from the connection port  410  and bring a front side of the corresponding apparatus  300  to extend beyond the first and the second partitioning wall  210 ,  220 . Then, the handle member  120  can be further outward pulled by a predetermined distance for the corresponding apparatus  300  to expose more from the opening of the object and a user can conveniently remove the corresponding apparatus  300  from the object with one hand. 
     Please refer to  FIG. 4 . The first pivot section  111  and the second pivot section  122  are pivotally turnably connected to each other via a shaft  150 . However, it is understood the first and the second pivot section  111 ,  122  can be otherwise connected together via a hinge structure or be engaged with each other via an engaging structure. 
     The pulling member  110  is provided with a first limiting unit  113 . When the handle member  120  is located at the pulled-out position, the first limiting unit  113  interferes with a second limiting unit  212  provided on the first partitioning wall  210  to limit a maximum length by which the pulling member  110  can be pulled out beyond the first partitioning wall  210 . In the first embodiment, the first limiting unit  113  is an elongated hole, and the second limiting unit  212  is a protruded body adapted to be correspondingly received in the above-mentioned elongated hole. In practical implementation of the present invention, the protruded body can be a screw, a nut or a rivet locked to the first partitioning wall  210 . It is understood the first limiting unit  113  and the second limiting unit  212  are not necessarily limited to the above-described structure. For example, the first limiting unit  113  can be otherwise an elongated slot, while the second limiting unit  212  can be a hooked body adapted to be correspondingly received in the elongated slot. Alternatively, the second limiting unit  212  can be an elongated hole or an elongated slot, while the first limiting unit  113  can be a protruded body or a hook adapted to be correspondingly received in the elongated hole or the elongated slot. 
     The pull-out aiding device  100  can further include a shock-absorbing member  140 , which is disposed on one side of the handle member  120  facing toward the corresponding apparatus  300  to avoid impact of the handle member  120  on the corresponding apparatus  300 . The shock-absorbing member  140  can be, for example, a piece of foam rubber, sponge or other similar soft material or elastomer. 
     As can be seen in  FIGS. 4 and 5 , the pull-out aiding device  100  can further include a releasable fastening element  130 , which is movably connected to the operating section  123  of the handle member  120 . The releasable fastening element  130  includes a latch  131  for engaging with a latch hole  221  provided on the second partitioning wall  220  to hold the handle member  120  to the closed position. Also, the releasable fastening element  130  can include a grip portion  132  that is raised from an outer surface of the releasable fastening element  130 . 
     In the illustrated first embodiment, the pulling member  110  or the handle member  120  can be made of a metal material or a plastic material. 
     Please refer to  FIGS. 6 and 7 , in which the first and second limiting units for a first variation of the pull-out aiding device  100  are shown. According to the first variation, the first limiting unit  113  includes two flanged bosses  113 A,  113 B, and the second limiting unit  212  includes two quick-release guide rails  212 A,  212 B that are associated with the two flanged bosses  113 A,  113 B in a one-to-one correspondence. As can be seen in  FIGS. 6 and 7 , the two flanged bosses  113 A,  113 B are movable in along the corresponding quick-release guide rails  212 A,  212 B. 
     In addition, the releasable fastening element  130  can have more than one latch  131 . In the illustrated first variation of the first embodiment, there are shown two latches  131 . Correspondingly, the second partitioning wall  220  can be provided with more than one latch hole  221  (not shown in  FIGS. 6 and 7 ) for the latches  131  to engage with. The releasable fastening element  130  further has two locating stoppers  134 , which are adapted to abut against a front edge of the second partitioning wall  220 , so that the releasable fastening element  130  and the second partitioning wall  220  are held in place relative to each other. 
     Please refer to  FIGS. 6, 7 and 8 . In the first variation of the first embodiment, the flanged bosses  113 A,  113 B respectively have a body portion  1131  and a flange portion  1132  formed around a free end of the body portion  1131 . The quick-release guide rails  212 A,  212 B respectively have a rail portion  2121  and a quick-release hole portion  2122  communicable with the rail portion  2121 . The body portions  1131  of the flanged bosses  113 A,  113 B are separately movably received in the corresponding rail portions  2121 . The flange portions  1132  of the flanged bosses  113 A,  113 B have a diameter larger than a diameter of the body portions  1131  and a width of the rail portions  2121 , so that the flanged bosses  113 A,  113 B are limited to move only within the corresponding rail portions  2121 . Also, the diameter of the flange portions  1132  is smaller than a diameter of the quick-release hole portions  2122 . When the flanged bosses  113 A,  113 B are moved in the rail portions  2121  to positions corresponding to the quick-release hole portions  2122 , the flange portions  1132  can be moved out of the quick-release hole portions  2122 , allowing the pull-out aiding device  100  to be detached from the first partitioning wall  210 . 
     Further, a distance between the two flanged bosses  113 A,  113 B is larger than a distance between the two quick-release hole portions  2122  of the two quick-release guide rails  212 A,  212 B. Therefore, as shown in  FIGS. 9 and 10 , the two flanged bosses  113 ,  113 B would not simultaneously disengage from the two quick-release guide rails  212 A,  212 B. Preferably, on the quick-release guide rail  212 B, the quick-release hole portion  2122  is arranged at a front end of the rail portion  2121 , i.e. a point on the quick-release guide rail  212 B that is closest to the second pivot section  122 ; and on the quick-release guide rail  212 A, the quick-release hole portion  2122  is arranged at a point on the rail portion  2121  that is located behind the front end of the rail portion  2121  by a predetermined distance. Accordingly, when the pulling member  110  is pulled outward relative to the first partitioning wall  210 , the flanged boss  113 A will reach at the quick-release hole portion  2122  of the quick-release guide rail  212 A first, allowing the flange portion  1132  of the flanged boss  113 A to move out of the quick-release hole portion  2122  of the quick-release guide rail  212 A. Thereafter, when the pulling member  110  is further pulled outward for the flanged boss  113 B to reach at the quick-release hole portion  2122  of the quick-release guide rail  212 B, the flange portion  1132  of the flanged boss  113 B can be easily disengaged from the quick-release hole portion  2122  of the quick-release guide rail  212 B, allowing the pull-out aiding device  100  to be fully detached from the first partitioning wall  210 . 
     As can be seen in  FIG. 11 , the pulling member  110  can have a bent section  115 , which is located adjacent to the first pivot section  111  and inclined toward the first partitioning wall  210  by 2 to 90 degrees. The bent section  115  is provided with a male foolproof retainer  1151  for ensuring correct mounting of the corresponding apparatus  300  in the object. That is, when the corresponding apparatus  300  is correctly mounted, the abutting section  112  and the foolproof retainer  1151  are pressed against two opposite end surfaces of the corresponding apparatus  300 . On the other hand, in the case the corresponding apparatus  300  is not correctly mounted in the object, the foolproof retainer  1151  interferes with the corresponding apparatus  300  and the pull-out aiding device  100  could not be pushed into the object. And, when the pulling member  110  has not yet been pulled outward, the bent section  115  is pushed by the first partitioning wall  210  against the corresponding apparatus  300  and is accordingly located in parallel to the first partitioning wall  210 . On the other hand, when the pulling member  110  is outward pulled relative to the first partitioning wall  210  and the bent section  115  is exposed from the object, the bent section  115  automatically inclines outward relative to the corresponding apparatus  300  and the foolproof retainer  1151  does not hinder the removal of the corresponding apparatus  300  from the object, allowing the corresponding apparatus  300  to be pulled out smoothly. 
     According to the present invention, the whole handle member  120  can be made of a plastic material and can have a window formed thereon. Via the window, the corresponding apparatus  300  can be seen from outside of the pull-out aiding device  100 . 
     As shown in  FIG. 6 , the releasable fastening element  130  can be configured to have two latches  131  and two locating stoppers  134 . The locating stoppers  134  are adapted to abut against a front edge of the second partitioning wall  220  and thereby hold the releasable fastening element  130  and the second partitioning wall  220  in place relative to each other. In the illustrated first variation of the first embodiment, the releasable fastening element  130  is connected to the operating section  123  via a plurality of compression springs. 
     Please refer back to  FIG. 4 . The shaft  150  mounted between the first pivot section  111  of the pulling member  110  and the second pivot section  122  of the handle member  120  has an elastic element fitted thereon. The elastic element elastically presses against the pulling member  110  and the handle member  120 , such that the handle member  120 , once being opened, can be automatically turned by the elastic element to restore to its original position. The elastic element can be a helical spring, a torsion spring, an elastic cylinder or a sheet spring. 
     As can be seen in  FIG. 11 , the handle member  120  can further include a return hook  129 , which can be arranged at an end of the handle member  120  having the second pivot section  122  formed thereat. Meanwhile, the first partitioning wall  210  is correspondingly provided with a return hook hole (not shown), to which the return hook  129  is hooked when the handle member  120  is closed. 
     Please refer to  FIGS. 12 and 13 , in which a pull-out aiding device  100  according to a second embodiment of the present invention is shown. Unlike the pull-out aiding device  100  of the first embodiment, of which the handle member  120  is located corresponding to the opening of the object, the pull-out aiding device  100  of the second embodiment is movably mounted to an outer surface of the first partitioning wall  210 . In this case, the first partitioning wall  210  is formed with a receiving recess  213 , in which a window is provided. The pulling member  110  is extended through the window with the abutting section  112  of the pulling member  110  being pressed against the rear side of the corresponding apparatus  300 . 
     The handle member  120  is pivotally turnable about the second pivot section  122  to move between a closed position, as shown in  FIG. 12 , and a pulled-out position, as shown in  FIG. 13 . When the handle member  120  is in the closed position, the closing edge  121 A is in contact with or located adjacent to the first partitioning wall  210 ; and when the handle member  120  is in the pulled-out position, the pulling-out edge  121 B is in contact with or located adjacent to the first partitioning wall  210  and the abutting section  112  is pulled to move forward by a distance relative to the first partitioning wall  210 . 
     According to the second embodiment, when the handle member  120  is in the closed position, it is located in parallel or non-perpendicular to the first partitioning wall  210 ; and when the handle member  120  is in the pulled-out position, it is located perpendicular or non-parallel to the first partitioning wall  210 . 
     Similar to the first embodiment, when the handle member  120  of the pull-out aiding device  100  according to the second embodiment is operated to turn from the closed position to the pulled-out position, since the vertical distance between the pulling-out edge  121 B of the pressing section  121  and the second pivot section  122  is larger than the vertical distance between the closing edge  121 A of the pressing section  121  and the second pivot section  122 , the pulling member  110  is brought by the handle member  120  to move forward toward the opening of the object. At this point, the abutting section  112  pushes the corresponding apparatus  300  forward to thereby separate the latter from the connection port  410  and bring a front side of the corresponding apparatus  300  to extend beyond the first and the second partitioning wall  210 ,  220 . Then, the handle member  120  can be further forward pulled by a predetermined distance for the corresponding apparatus  300  to expose more from the opening of the object and a user can conveniently remove the corresponding apparatus  300  from the object with one hand. 
     In the second embodiment, the abutting section  112  is in the form of an L-shaped arm for abutting against the rear side of the corresponding apparatus  300 . When the pulling member  110  is moved forward, the abutting section  112  also pushes the corresponding apparatus  300  forward. However, it is understood the abutting section  112  is not necessarily limited to the L-shaped arm but can be other differently shaped structures, such as a hook, a latch or a stepped structure. 
     Referring to  FIGS. 14, 15 and 16 , in which a first variation of the second embodiment is shown. 
     As can be seen in  FIGS. 14 and 15 , in the first variation of the second embodiment, the pull-out aiding device has a first limiting unit  113 ′ that is in the form of a guide rod and located at an end of the pulling member  110  having the first pivot section  122  formed thereat. Meanwhile, the first partitioning wall  210  has a second limiting unit  212 ′ that is in the form of a supporting seat provided with a guide rail  212 ′A. The guide rod forming the first limiting unit  113 ′ is engaged with the guide rail  212 ′A to move in along a path defined by the guide rail  212 ′A. 
     As can be seen in  FIG. 16 , in the first variation of the second embodiment, the pulling member  110  has an abutting section  112 ′ provided with a retaining hole  112 ′A. In this case, the corresponding apparatus  300  is provided with a projected interfering section  310  for correspondingly engaging with the retaining hole  112 ′A. Accordingly, when the pulling member  110  is moved, the abutting section  112 ′ pushes against the corresponding apparatus  300 , bringing the corresponding apparatus  300  or the first partitioning wall  210  to move at the same time. 
     Please refer to  FIG. 17 , in which a second variation of the second embodiment is shown. 
     In the second variation of the second embodiment, the pulling member  110  has a first limiting unit  113 . When the handle member  120  is in the pulled-out position, the first limiting unit  113  interferes with a second limiting unit  212  provided on the first partitioning wall  210  to limit a maximum length by which the pulling member  110  can be pulled out beyond the first partitioning wall  210 . In the second variation of the second embodiment, the first limiting unit  113  is, for example, an elongated hole and the second limiting unit  212  is a protruded body adapted to be correspondingly received in the above-mentioned elongated hole. In practical implementation of the present invention, the protruded body can be a screw, a nut or a rivet locked to the first partitioning wall  210 . 
     In this case, the pulling member  110  can have an L-shaped or a hook-like configuration and includes a first pivot section  111  formed at an extended bent portion of the L-shaped or hook-like pulling member  110 . The first pivot section  111  is pivotally connected to the second pivot section  122 . 
       FIG. 18  shows a third variation of the second embodiment of the present invention. 
     In the third variation of the second embodiment, the handle member  120  includes a fixing section  125 . When the handle member  120  is in the closed position, the fixing section  125  is used to temporarily fix the handle member  120  to the first partitioning wall  210 . For example, the fixing section  125  can be a fastening bolt extended through the handle member  120 . In this case, the first partitioning wall  210  is correspondingly provided with a fastening hole  215 . To operate the handle member  120 , first turn and loosen the fixing section  125  from the fastening hole  215  to allow the handle member  120  to be freely turned and moved. 
     In the third variation of the second embodiment, the first partitioning wall  210  has a stop flange  214  that is located corresponding to the operating section  123  of the handle member  120  when the latter is in the closed position. The stop flange  214  functions to stop the operating section  123  from moving into the first partitioning wall  210  and accordingly, hold the pulling member  110  in place. Preferably, the fixing section  125  is provided on the operating section  123  and the fastening hole  215  is provided on the stop flange  214  corresponding to the fixing section  125 . 
     In the third variation of the second embodiment, the first partitioning wall  210  has a second limiting unit  212 , which is in the form of an elongated hole. The pulling member  110  is extended through the second limiting unit  212  to move in along the second limiting unit  212 . The second limiting unit  212  functions to limit a distance by which the pulling member  110  can be moved. 
       FIG. 19  shows a fourth variation of the second embodiment of the present invention. 
     In the fourth variation of the second embodiment, the second pivot section  122  of the handle member  120  and the first pivot section  111  of the pulling member  110  are pivotally turnably connected together via a shaft; and the pull-out aiding device  100  further includes an elastic element  160 . The elastic element  160  is fitted on around the shaft to elastically push against the pulling member  110  and the handle member  120 . Therefore, when the handle member  120  is opened and not held in place by a user, the handle member  120  is automatically turned by a spring force of the elastic element  160  to the closed position. 
     Further, the handle member  120  includes a limiting section  124 , which is located adjacent to the closing edge of the pressing section  121 . In this case, the first partitioning wall  210  is correspondingly provided with a mating limiting section  216 . The limiting section  124  can be extended through the mating limiting section  216  and hooked thereto, so that the handle member  120  is stopped from moving relative to the first partitioning wall  210 . 
     In the fourth variation of the second embodiment, the handle member  120  further has a fixing section  125 ′. When the handle member  120  is in the closed position, the fixing section  125 ′ temporarily fixes the handle member  120  to the first partitioning wall  210 . For example, the fixing section  125 ′ can be a hook-like body. In this case, the pulling member  110  is correspondingly provided with a hooking groove  114 . To operate the handle member  120 , first apply a force to pull the handle member  120 , so that the fixing section  125 ′ is separated from the hooking groove  114  of the pulling member  110 , allowing the handle member  120  to be turned freely. 
     Please refer to  FIG. 20 , in which a pull-out aiding device according to a third embodiment of the present invention is shown. 
     In the third embodiment, the pulling member  110  of the pull-out aiding device includes a first coupling section  116  and an abutting section  112 , which is used to move the corresponding apparatus  300 ; and the handle member  120  includes a rotation shaft portion  126 , a second coupling section  127  and an operating section  123 . The second coupling section  127  and the first coupling section  116  are connected together while they are movable relative to each other. The handle member  120  is rotatable about the rotation shaft portion  126 , and the rotation shaft portion  126  is rotatably associated with the first partitioning wall  210 . In the third embodiment, the rotation shaft portion  126  associated with the first partitioning wall  210  can translate over the first partitioning wall  210 . 
     Wherein, the second coupling section  127  is a hole, and the first coupling section  116  is a protruded body, a hook, a recessed body or a fastening body extended through the hole  127 . 
     Further, as can be seen in  FIG. 20 , the rotation shaft portion  126  formed at an end of the handle member  120  has a cylindrical circumference  128 , which is pressed against a bottom of the receiving recess  213  of the first partitioning wall  210 , such that the pulling member  110  can be smoothly turned about the rotation shaft portion  126 . 
     By operating the handle member  120  at the operating section  123 , a user can turn the handle member  120  about the rotation shaft portion  126  to a position perpendicular or nonparallel to the first partitioning wall  210 . Then, pull the operating section  123  to translate the same. At this point, the handle member  120  brings the pulling member  110  to move along with it, causing the abutting section  112  of the pulling member  110  to push the corresponding apparatus  300  forward, such that the corresponding apparatus  300  can be conveniently removed from the object. 
     Please refer to  FIG. 21 , in which a pull-out aiding device according to a variation of the third embodiment of the present invention is shown. 
     In the variation of the third embodiment, the second coupling section  127  is in the form of a hook, and the first coupling section  116  is in the form of a hook adapted to be engaged with the hook-shaped second coupling section  127 . However, it is understood the first coupling section  116  is not necessarily limited to the above-described configuration. For example, the first coupling section  116  can be otherwise a hole, a protruded body, a recessed body or a fastening body. 
     Therefore, in this case, the user may operate the handle member  120  at the operating section  123  to turn the handle member  120  about the rotation shaft portion  126  until the handle member  120  is perpendicular or nonparallel to the first partitioning wall  210 . Then, pull the operating section  123  to translate the same. At this point, the handle member  120  brings the pulling member  110  to move along with it, causing the abutting section  112  of the pulling member  110  to push the corresponding apparatus  300  forward, such that the corresponding apparatus  300  can be conveniently removed from the object. 
     Please refer to  FIG. 22 , in which a chassis-wall module with pull-out aiding function  200  according to a fourth embodiment of the present invention is shown, and to  FIG. 23 , in which a variation of the fourth embodiment is shown. 
     As can be seen in  FIG. 22 , the chassis-wall module  200  includes a first partitioning wall  210  and a pull-out aiding device  100  described in the first embodiment of the present invention; and the pulling member  110  of the pull-out aiding device  100  is movably coupled with the first partitioning wall  210 . 
     As shown in  FIG. 23 , a variation of the chassis-wall module  200  includes a first partitioning wall  210  and a pull-out aiding device  100  described in the second embodiment of the present invention; and the pulling member  110  of the pull-out aiding device  100  is movably coupled with the first partitioning wall  210 . In this case, the first partitioning wall  210  includes a receiving recess  213 , and the pulling member  110  is arranged in the receiving recess  213 . 
     In summary, the pull-out aiding device  100  and the chassis-wall module  200  according to the present invention can be easily and effortlessly operated to help a user conveniently remove a corresponding apparatus from a chassis. 
     Please refer to  FIGS. 1 and 6-10 , in which a method for mounting a pull-out aiding device  100  on an object is introduced. As shown in  FIGS. 7 and 8 , the pull-out aiding device  100  has a pulling member  110  and a handle member  120 . The pulling member  110  includes a first pivot section  111 , the handle member  120  includes a second pivot section  122 , and the second pivot section  122  is pivotally connected to the first pivot section  111 . As shown in  FIGS. 1 and 7 , the object has a first partitioning wall  210  and a second partitioning wall  220  and is configured for mounting a corresponding apparatus  300  therein. The method includes the steps of: as shown in  FIGS. 7 and 8 , providing the pulling member  110  with a first limiting unit  113 , the first limiting unit  113  includes two flanged bosses  113 A,  113 B, each of the two flanged bosses  113 A,  113 B has a body portion  1131  and a flange portion  1132  formed around a free end of the body portion  1131 , a distance between the two flanged bosses  113 A,  113 B is fixed. Providing the first partitioning wall  210  with a second limiting unit  212 , the second limiting unit  212  includes two quick-release guide rails  212 A,  212 B, the two quick-release guide rails  212 A,  212 B and the two flanged bosses  113 A,  113 B corresponding to each other, each of the two quick-release guide rails  212 A,  212 B has a rail portion  2121  and a quick-release hole portion  2122  communicable with the rail portion  2121 , a distance between the quick-release hole portions  2122  of the two quick-release guide rails  212 A,  212 B is fixed; a distance between the two flanged bosses  113 A,  113 B is larger than a distance between the quick-release hole portions  2122  of the two quick-release guide rails  212 A,  212 B; the flange portion  1132  having a size (diameter) larger than a size (diameter) of the body portion  1131  and a width of the rail portion  2121  and the size (diameter) of the flange portion  1132  being smaller than a size (diameter) of the quick-release hole portion  2122 ; a thickness of the body portion  1131  of the flanged boss  113 A,  113 B is larger than a thickness of the quick-release guide rail  212 A,  212 B. As shown in  FIG. 10 , inserting the flange portion  1132  of one flanged boss  113 B of the two flanged bosses  113 A,  113 B into the quick-release hole portion  2122  of one quick-release guide rail  212 B of the two quick-release guide rails  212 A,  212 B, and moving the body portion  1131  of the one flanged boss  113 B of the two flanged bosses  113 A,  113 B in the rail portion  2121  of the one quick-release guide rail  212 B of the two quick-release guide rails  212 A,  212 B (as shown in  FIG. 9 ). As shown in  FIG. 9 , inserting the flange portion  1132  of another flanged boss  113 A of the two flanged bosses  113 A,  113 B into the quick-release hole portion  2122  of another quick-release guide rail  212 A of the two quick-release guide rails  212 A,  212 B, and moving the body portion  1131  of the another flanged boss  113 A of the two flanged bosses  113 A,  113 B in the rail portion  2121  of the another quick-release guide rail  212 A of the two quick-release guide rails  212 A,  212 B (as shown in  FIG. 6 ). According to the above, the pull-out aiding device  100  can be easily and quickly mounted on the object, and the pull-out aiding device  100  does not arbitrarily disengage from the object. 
     The present invention has been described with some preferred embodiments thereof and it is understood that the preferred embodiments are only illustrative and not intended to limit the present invention in any way and many changes and modifications in the described embodiments can be carried out without departing from the scope and the spirit of the invention that is intended to be limited only by the appended claims.