Abstract:
The present invention relates to a chuck mechanism of a charge/discharge testing device for flat-rechargeable batteries and has a proposition to provide a chuck mechanism that makes it possible to lighten conventionally needed troublesome works, that is, for example, works of storing and fixing a large number of flat-rechargeable batteries in a container, and that is capable of surely chucking the flat-rechargeable batteries (electrodes). The chuck mechanism includes a first guide couplable with a battery storage retaining a plurality of flat-rechargeable batteries arranged in parallel, and a plurality of chuck units continuously joined with the first guide and resiliently arranged in parallel, wherein the chuck units each have a second guide resiliently positioning each of the chuck units with a predetermined number of corresponding flat-rechargeable batteries in the battery storage.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
       [0001]    This application is based upon and claims the benefit of priority from Japanese Patent Application No. 2010-138189, filed on Jun. 17, 2010, the entire contents of which are incorporated herein by reference. 
       BACKGROUND 
       [0002]    1. Field 
         [0003]    The present application relates to a chuck mechanism for electrode terminals that is used in a charge/discharge testing device for flat-rechargeable batteries formed in a plate shape. 
         [0004]    2. Description of the Related Art 
         [0005]    A flat-rechargeable battery  1  formed in a plate shape as shown in  FIG. 23  and  FIG. 24  is used in many technical fields, and this flat-rechargeable battery  1  has a pair of electrode terminals  5 ,  7  in a thin piece shape projecting in one direction from a flat case  3 . 
         [0006]    Similarly to conventional rechargeable batteries, the flat-rechargeable batteries  1  also undergo a charge/discharge test for quality inspection several times after produced in a factory, and thereafter acceptable products are half-charged to be shipped as products. 
         [0007]      FIG. 25  shows a charge/discharge testing device for flat-rechargeable batteries disclosed in Japanese Unexamined Patent Application Publication No. 2000-58135, and this charge/discharge testing device  9  includes a charge/discharge rack  13  provided with a group of vertically hung clip-type coupling terminals  11  coupled with electrode terminals  5 ,  7  of flat-rechargeable batteries  1 , a contact support  17  disposed to face the group of the coupling terminals  11  and supporting a group of contacts  15  coming into contact or separating from the coupling terminals  11 , a support reciprocating mechanism  19  reciprocating the contact support  17  in a predetermined direction to make the corresponding coupling terminals  11  and contacts  15  come into contact with or separate from each other, and a charge/discharge power source  21  coupled with the group of the contacts  15 , and the charge/discharge testing device  9  is capable of conducting a charge/discharge test of a large number of the flat-rechargeable batteries  1  at a time. 
         [0008]    Further, Japanese Unexamined Patent Application Publication No. 2004-319334 discloses a charge/discharge and inspection system for flat-rechargeable batteries which includes a battery container in which many flat-rechargeable batteries are stored and arranged in a fixed direction, with electrode terminals of the flat-rechargeable batteries being inserted in many insertion holes formed in its bottom plate, and a chuck mechanism chucking the electrode terminals projecting from the insertion holes of the battery container, wherein the chuck mechanism is moved close to the battery container by a first operation (lift) mechanism after the many flat-rechargeable batteries are stored and arranged in the battery container, and thereafter the chuck mechanism is made to chuck the electrode terminals by a second operation (lift) mechanism. 
         [0009]    In this manner, the charge/discharge testing device  9  is capable of conducting the charge/discharge test of the many flat-rechargeable batteries  1  at a time, but it took a lot of trouble to couple the flat-rechargeable batteries  1  (electrode terminals  5 ,  7 ) with the group of the many clip-type coupling terminals  11 . 
         [0010]    In addition, there have been pointed out drawbacks that a place for the charge/discharge test is limited and the whole device becomes large since the charge/discharge rack  13  including the group of the coupling terminals  11  are integrally assembled in the charge/discharge testing device  9 . 
         [0011]    Further, though capable of conducting the charge/discharge test of the many flat-rechargeable batteries at a time, the conventional example disclosed in Japanese Unexamined Patent Application Publication No. 2004-319334 requires a work of storing and arranging the many flat-rechargeable batteries in the battery container prior to the test and thus has a problem of poor workability. 
         [0012]    On the other hand, however, at the time of the charge/discharge test, without the structure fixing the flat-rechargeable batteries such as the battery container, positions of electrodes of the flat-rechargeable batteries become irregular, which is likely to result in incapability of accurate chucking. 
       SUMMARY 
       [0013]    The present application was invented in consideration of the above-described circumstances and has a proposition to provide a chuck mechanism of a charge/discharge testing device for flat-rechargeable batteries which makes it possible to lighten the aforesaid conventionally needed troublesome works, that is, the work of coupling the flat-rechargeable batteries with the group of the clip-type coupling terminals and the work of storing and arranging the many flat-rechargeable batteries in the battery container and which is capable of surely chucking the flat-rechargeable batteries (electrodes). 
         [0014]    To attain the above proposition, a chuck mechanism of a charge/discharge testing device for flat-rechargeable batteries according to one embodiment of the present application includes a first guide couplable with a battery storage retaining a plurality of flat-rechargeable batteries arranged in parallel, and a plurality of chuck units continuously joined with the first guide and resiliently arranged in parallel, wherein the chuck units each have a second guide resiliently positioning each of the chuck units with a predetermined number of corresponding flat-rechargeable batteries in the battery storage. 
         [0015]    Another embodiment of the present application is the chuck mechanism, wherein the second guide is made up of a pair of two positioning pins fastening a positioner that is formed in the battery storage corresponding to each of the chuck units, and each pair of the positioning pins becomes shorter in order from both ends toward a center of the plurality of chuck units arranged in parallel. 
         [0016]    Still another embodiment of the present application is the chuck mechanism, wherein the chuck units include a roller-retaining member which is movable in a front and rear direction of a support base when a driver mounted on the support base is driven and in which a plurality of divided roller-retaining members are movably arranged in parallel via a shaft extending in a left and right direction of the support base, the divided roller-retaining members arranging in parallel a plurality of pairs of rollers vertically on each front surface of the divided roller-retaining members, and a chuck-retaining member in which a plurality of divided chuck-retaining members each making one unit with each of the divided roller-retaining members are resiliently and movably arranged in parallel via the shaft extending in the left and right direction of the support base, wherein the divided chuck-retaining members each have a plurality of chuck members each made up of a pair of two strip-formed metal plates inserted through a gap between each of the pairs of rollers, with front end sides of the metal plates fanning out in a V shape in a plane view and with rear end sides of the metal plates coupled with electric wires of the charge/discharge testing device, and wherein the second guide is provided in each of the divided chuck-retaining members. 
         [0017]    Yet another embodiment of the present application is the chuck mechanism, wherein an oxide film exfoliating/fastening member having a large number of projections on a fastening surface of the oxide film exfoliating/fastening member is fixed on front ends of a pair of two chuck members, and yet another embodiment of the present application is the chuck mechanism according to the above embodiment, wherein the oxide film exfoliating/fastening member has a guide inclining inward from the front end sides of the chuck members toward the fastening surface. 
         [0018]    Yet another embodiment of the present application is the chuck mechanism, wherein slits are formed in a front and rear direction in the front ends of the chuck members, and the oxide film exfoliating/fastening member is fixed on each front end of the chuck members demarcated by the slits. 
         [0019]    According the aforementioned embodiments, it is possible to chuck electrode terminals by the chuck units accurately and favorably while lightening troublesome works of storing and fixing a large number of flat-rechargeable batteries in a predetermined container or the like prior to a charge/discharge test as has been required conventionally. 
         [0020]    That is, the present application is structured such that, in the battery storage side, it is only necessary to fasten the flat-rechargeable batteries which are arranged in parallel, and when the battery storage is thereafter moved close to the chuck mechanism, the first guide adjusts a chuck width of the chuck mechanism according to a battery storage width of the battery storage, and thereafter the chuck units resiliently and continuously joined with the first guide are positioned with the flat-rechargeable batteries by the second guide automatically and resiliently in sequence, which as a result has an advantage of improving chuck accuracy while reducing a work load. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0021]      FIG. 1  is a front perspective view of a chuck mechanism. 
           [0022]      FIG. 2  is a rear perspective view of the chuck mechanism. 
           [0023]      FIG. 3  is a rear perspective view of the chuck mechanism. 
           [0024]      FIG. 4  is a rear perspective view of the chuck mechanism. 
           [0025]      FIG. 5  is a rear perspective view of the chuck mechanism. 
           [0026]      FIG. 6  is a plane view of the chuck mechanism. 
           [0027]      FIG. 7  is a side view of the chuck mechanism. 
           [0028]      FIG. 8  is a plane view of the chuck mechanism in a state where chuck members are closed by rollers. 
           [0029]      FIG. 9  is a side view of the chuck mechanism in the state where the chuck members are closed by the rollers. 
           [0030]      FIG. 10  is an enlarged perspective view of an essential part of the chuck mechanism. 
           [0031]      FIG. 11  is a front perspective view of a divided roller-retaining member and a divided chuck-retaining member. 
           [0032]      FIG. 12  is a rear perspective view of the divided roller-retaining member and the divided chuck-retaining member. 
           [0033]      FIGS. 13A , B, C are a plane view, a front view, and a bottom view of an exfoliating/fastening member, respectively. 
           [0034]      FIG. 14  is a front perspective view of a magazine. 
           [0035]      FIG. 15  is an enlarged perspective view of an essential part of the chuck mechanism and the magazine disposed to face the chuck mechanism. 
           [0036]      FIG. 16  is a perspective view of the chuck mechanism and the magazine disposed to face the chuck mechanism. 
           [0037]      FIG. 17  is a plane view of the chuck mechanism and the magazine disposed to face the chuck mechanism. 
           [0038]      FIG. 18  is a side view of the chuck mechanism and the magazine disposed to face the chuck mechanism. 
           [0039]      FIG. 19  is a plane view of the chuck mechanism and the magazine disposed to face the chuck mechanism. 
           [0040]      FIG. 20  is a side view of the chuck mechanism and the magazine disposed to face the chuck mechanism. 
           [0041]      FIG. 21  is a plane view of the chuck mechanism whose chuck members are fastening electrode terminals, and the magazine. 
           [0042]      FIG. 22  is a side view of the chuck mechanism whose chuck members are fastening the electrode terminals, and the magazine. 
           [0043]      FIG. 23  is a perspective view of a flat-rechargeable battery. 
           [0044]      FIG. 24  is a plane view of the flat-rechargeable battery. 
           [0045]      FIG. 25  is a front view of a charge/discharge testing device disclosed in Patent Document 1. 
       
    
    
     DETAILED DESCRIPTION OF THE EMBODIMENTS 
       [0046]    Hereinafter, an embodiment of the present invention will be described in detail based on the drawings. 
         [0047]      FIG. 1  to  FIG. 12  show a chuck mechanism of a charge/discharge testing device for flat-rechargeable batteries according to an embodiment of the present invention, and in  FIG. 1  to  FIG. 5 ,  31  denotes a support base which is a rectangular parallelepiped frame made up of a plurality of support posts  31   a  to  31   w  disposed on front, back, right, and left sides, and as shown in  FIG. 1  and  FIG. 2 , a mounting plate  33  in a rectangular shape in a plane view is mounted between the support post  31   w , which is bridged between the left and right support posts  31   o ,  31   p , and the support post  31   q , which is bridged between the support posts  31   m ,  31   n  on left and right rear sides, and on the mounting plate  33 , an air cylinder (driver)  37  whose piston rod  35  is expandable/contractible in a front and rear direction of the support base  31  is mounted as shown in  FIG. 6  to  FIG. 9 . 
         [0048]    As shown in  FIG. 6  to  FIG. 9 , on a front end of the piston rod  35 , a roller-retaining member  41  is mounted via a support frame  39 , and further, a chuck-retaining member  43  facing the roller-retaining member  41  is mounted to be movable in a right and left direction of the support base  31  along one shaft  45  bridged between the left and right support posts  31   k ,  31   l  of the support base  31 , and the roller-retaining member  41  and the chuck-retaining member  43  form chuck units in this embodiment. 
         [0049]    Specifically, as shown in  FIG. 2 ,  FIG. 6 , and  FIG. 8 , through a casing  37   a  of the air cylinder  37 , columnar guide members  47  are inserted along the piston rod  35 , one on the right side and the other one on the left side of the piston rod  35 . 
         [0050]    A coupler plate  51  in a rectangular shape in a front view made of one plate member and having a rising wall  49  for reinforcement formed along its peripheral edge is fixed to front ends of the both guide members  47  and the piston rod  35 , so as to face a front surface of the support base  31  and so as to extend long in a lateral direction. 
         [0051]    Six support posts  53   a ,  53   b ,  53   c ,  53   d ,  53   e ,  53   f  are fixed in an up and down direction to the coupler plate  51  at predetermined intervals, and one support post  55  and one support post  57  are fixed respectively to upper sides and lower sides of the support posts  53   a ,  53   b ,  53   c ,  53   d ,  53   e ,  53   f  so as to extend in the right and left direction of the support base  31 . As shown in  FIG. 2 ,  FIG. 3 ,  FIG. 7 , and  FIG. 9 , one support plate  59  and one support plate  61  both in a C shape in a side view are fixed between left end portions of the upper and lower support posts  55 ,  57  and between right end portions thereof respectively, and the support posts  55 ,  57  are coupled with upper sides of base portions  59   a ,  61   a  of the support plates  59 ,  61  and with lower sides thereof respectively to form the support frame  39 . 
         [0052]    As shown in  FIG. 1  to  FIG. 6  and  FIG. 10 , one shaft  63  is bridged on front end sides of upper arms  59   b ,  61   b  projecting forward from upper portions of the base portions  59   a ,  61   a  of the support plates  59 ,  61 , and one shaft  65  is bridged in parallel to the shaft  63  between front end sides of lower arms  59   c ,  61   c  projecting forward from lower portions of the base portions  59   a ,  61   a . Between the two upper and lower shafts  63 ,  65 , the roller-retaining member  41  in which a plurality of divided roller-retaining members  67  are arranged in parallel is formed. 
         [0053]      FIG. 11  and  FIG. 12  show the divided roller-retaining member  67  and a divided chuck-retaining member  69  making a unit with the divided roller-retaining member  67 . The plural divided roller-retaining members  67  are arranged in parallel between the shafts  63 ,  65  to form the roller-retaining member  41  as previously described, and the plural divided chuck-retaining members  69  are arranged in parallel along the shaft  45  to form the chuck-retaining member  43 . 
         [0054]    In  FIG. 11  and  FIG. 12 ,  71  denotes a roller mounting plate being one plate, which has, on its upper and lower portions, mounting flanges  73 ,  75  each having a substantially L-shaped cross section and has, on its left and right sides, rising walls  77  for reinforcement. As shown in  FIG. 10 , retaining members  79  in a block shape through which the shaft  63  is inserted are fixed to the upper mounting flanges  73  and retaining members  81  in a block shape through which the shaft  65  is inserted are fixed to the lower mounting flanges  75 , and all the divided roller-retaining members  67  are movably mounted between the upper and lower shafts  63 ,  65  via the retaining members  79 .  81 . 
         [0055]    Further, as shown in  FIG. 11 , the roller mounting plate  71  has, in upper and lower portions of its front surface, insertion holes  87 ,  89  in a rectangular shape in a front view through which later-described plurality of pairs of chuck members  83 ,  85  are inserted, and a long hole  91  is opened in a lateral direction between the both insertion holes  87 ,  89 . A pair of roller mounting brackets  93 ,  95  are fixed to upper and lower sides of the upper insertion hole  87 , and four pairs of columnar rollers  97  are rotatably mounted between the both roller mounting brackets  93 ,  95 . 
         [0056]    As shown in  FIG. 11 , the upper roller mounting bracket  93  includes: a first roller mounting bracket  93   a  with a substantially L-shaped cross section in whose front ends a plurality of roller insertion holes  99  having the rollers  97  inserted therethrough are opened at equal intervals; and a second roller mounting bracket  93   b  with a substantially L-shaped cross section disposed above the first roller mounting bracket  93   a , with a small gap therebetween, and support holes  103  supporting shafts  101  of the rollers  97  are provided in a front end portion of the second roller mounting bracket  93   b  in correspondence to the roller insertion holes  99 . 
         [0057]    In a front end portion of the other roller mounting bracket  95 , support holes  105  supporting the shafts of the rollers  97  are formed in correspondence to the support holes  103 , and the four pairs of rollers  97  are rotatably mounted between the roller mounting brackets  93 ,  95  via the roller insertion holes  99  and the support holes  103 ,  105 . 
         [0058]    A similar roller mounting bracket  93  is mounted upside down on a lower side of the lower insertion hole  89 , and a similar roller mounting bracket  95  is mounted upside down on an upper side of the insertion hole  89 , and a four pairs of rollers  97  are rotatably mounted between the both roller mounting brackets  93 ,  95 . 
         [0059]    The divided roller-retaining member  67  is thus structured, and the plural divided roller-retaining members  67  are movably mounted between the shafts  63 ,  65  to form the roller-retaining member  41  movable in the front and rear direction of the support base  31  by the air cylinder  37  being driven. 
         [0060]    Next, the chuck-retaining member  43  will be described. As shown in  FIG. 1  to  FIG. 10 , support brackets  107 ,  109  are mounted at substantially centers of the left and right support posts  31   k ,  31   l  of the support base  31  respectively, and the single shaft  45  is bridged between the both support brackets  107 ,  109  in parallel to the shafts  63 ,  65 . As shown in  FIG. 11  and  FIG. 12 , the shaft  45  is inserted through retaining members  111  of the divided chuck-retaining members  69 . 
         [0061]    As previously described, the divided chuck-retaining member  69  and the divided roller-retaining member  67  are formed as a unit to make a pair, and the plural divided chuck-retaining members  69  are arranged in parallel along the shaft  45  to form the chuck-retaining member  43 . 
         [0062]    In  FIG. 11  and  FIG. 12 ,  113  denotes a thick chuck mounting plate disposed along the roller mounting plate  71 , and at a center of its rear surface side, the retaining member  111  in the block shape through which the shaft  45  is inserted is mounted. On a front surface of the chuck mounting plate  113 , the four chuck members  83  disposed in parallel in the lateral direction and the four chuck members  85  disposed in parallel in the lateral direction, each corresponding to the aforesaid each pair of the rollers  97 , are disposed in two tiers. 
         [0063]    As is shown in the drawings, the chuck members  83 ,  85  are each made up of a pair of two metal plates  115 ,  117  in a strip shape having a spring property and made of, for example, phosphor bronze or the like, and rear end sides of the two metal plates  115 ,  117  are overlaid one on the other to be inserted through a through hole (not shown) formed in the chuck mounting plate  113 . The rear ends of the metal plates  115  projecting from a rear surface of the chuck mounting plate  113  are bent in an L shape along the rear surface of the chuck mounting plate  113  to be screw-fixed to the rear surface. 
         [0064]    Similarly, the rear ends of the other metal plates  117  projecting from the rear surface of the chuck mounting plate  113  are bent in an L shape along the rear surface of the chuck mounting plate  113  to be screw-fixed to the rear surface, and as shown in  FIG. 12 , the rear ends of the metal plates  115 ,  117  are cut out to a short length in the up and down direction to be disposed on the upper and lower side of the rear surface of the chuck mounting plate  113 . Electric wires from the charge/discharge testing device can be coupled with the rear ends of the metal plates  115 ,  117  projecting from the rear surface of the chuck mounting plate  113 . 
         [0065]    As shown in  FIG. 11 , the aforesaid pairs of rollers  97  are each disposed so as to correspond to each of the chuck members  83 ,  85  (metal plates  115 ,  117 ) projecting to a front side of the chuck mounting plate  113 , and each pair of the metal plates  115 ,  117  is inserted between each pair of the rollers  97 . 
         [0066]    As is shown in the drawings, front end sides of the metal plates  115 ,  117  inserted between the rollers  97  fan out in a substantially V shape in a plane view, with their leading ends being bent slightly inward, and as will be described later, when the roller-retaining member  41  moves forward by the air cylinder  37  being driven, each pair of the metal plates  115 ,  117  (chuck member  83 ,  85 ) fanning out in a substantially V shape in a plane view is closed by each pair of the rollers  97 . 
         [0067]    Further, slits  119  are formed in the front and rear direction in the front ends of the metal plates  115 ,  117 , three slits  119  being formed in each of the metal plates  115 ,  117  forming the upper chuck member  83  and two slits  119  being formed in each of the metal plates  115 ,  117  forming the lower chuck member  85 . 
         [0068]    As shown in  FIG. 11 , a pair of oxide film exfoliating/fastening members (hereinafter, referred to as “exfoliating/fastening members)  121  are caulk-fixed to tip sides demarcated by the slits  119  in each pair of the metal plates  115 ,  117 . 
         [0069]    Specifically, as shown in  FIG. 10 , mounting holes  123  to which the exfoliating/fastening members  121  are caulk-fixed are provided in the front end sides demarcated by the slits  119  in the metal plates  115 ,  117 . As shown in  FIGS. 13(   a ) to ( c ), the exfoliating/fastening members  121  each have a leg portion  121   a  caulk-fixed to the mounting hole  123  and a head portion  121   b  in a thick disk shape in a plane view integrally formed with the leg portion  121   a . Six spike pins  127  are projectingly provided on a fastening surface  125  being a top portion of the head portion  121   b , and as will be described later, when the metal plates  115 ,  117  are closed by the pair of rollers  97  while an electrode terminal  5 ,  7  of the flat-rechargeable battery  1  is interposed between the metal plates  115 ,  117 , the six spike pins  127  of each of the exfoliating/fastening members  121  on one side and the six spike pins  127  of each of the exfoliating/fastening member  121  on the other side come into pressure contact with front and rear surfaces of the electrode terminal  5 ,  7  respectively to exfoliate the oxide films formed on the surfaces of the electrode terminal  5 ,  7 . 
         [0070]    Further, as shown in  FIG. 11  and  FIGS. 13(   a ) to ( c ), guides  129  inclining inward from the front end sides of the chuck members  83 ,  85  toward the fastening surfaces  125  are formed on the head portions  121   b , and the guide members  129  guide the displaced electrode terminals  5 ,  7  to the fastening surfaces  125 . 
         [0071]    As previously described, the plural divided chuck-retaining members  69  are arranged in parallel along the shaft  45  to form the chuck-retaining member  43 , and as shown in  FIG. 1 ,  FIG. 6 , and  FIG. 10 , on the support post  31   l  side of the support base  31 , one width-deciding/fastening member (first guide)  135  fastening a battery pressing plate  133  of a later-described magazine (battery storage)  131  is movably mounted on the shaft  45 . 
         [0072]    As is shown in the drawings, the width-deciding/fastening member  135  includes: a base  137  in a rectangular shape in a plane view that is equal in thickness to the chuck mounting plate  113 ; and a fastening arm  139  in a U-shape in a plane view mounted on a front surface of the base  137 , and the retaining member  111  is mounted on a rear surface side of the base  137 . Further, in lower portions of left and right side surfaces of the base  137 , bottomed shaft insertion holes  141  each having a step therein are provided, and as shown in  FIG. 10 , positioning shafts  143  are inserted in the both shaft insertion holes  141  one per each, and further, a coil spring  145  is wound around an outer periphery of each of the positioning shafts  143 . 
         [0073]    The positioning shaft  143  inserted in the shaft insertion hole  141  on the support post  31   l  side is inserted and supported in a spring insertion hole (not shown) of a support bracket  109  mounted on the support post  31   l , and one end side of the coil spring  145  is inserted and retained in the spring insertion hole. 
         [0074]    The not-shown positioning shaft inserted in the shaft insertion hole (not shown) opposite the support post  31   l  and its coil spring are inserted and supported in a spring insertion hole  147  provided in the chuck mounting plate  113  adjacent thereto. 
         [0075]    Specifically, as shown in  FIG. 11 , a spring mounting hole  149  in which one end side of the coil spring  145  is inserted and retained is formed in a left side surface of the chuck mounting plate  113 , and thereunder, a positioning pin (rotation stopping pin)  151  is projectingly provided. 
         [0076]    As shown in  FIG. 12 , in a right side surface of the chuck mounting plate  113 , a spring insertion hole  147  in which the coil spring  145  on the adjacent chuck mounting plate  113  side is insertable and a positioning pin insertion hole  153  in which the positioning pin  151  is insertable are formed. 
         [0077]    Further, as shown in  FIG. 7 , on upper and lower sides of the support bracket  107  mounted on the support post  31   k , receiving parts  155 ,  157  retaining the coil spring  145  and the positioning pin  151  of the chuck mounting plate  113  adjacent to the support post  31   k  are formed, so that the divided chuck-retaining members  69  and the width positioning/fastening member  135  which are arranged along the shaft  45  between the left and right support posts  31   k ,  31   l  are continuously provided via the coil springs  145  and the positioning pins  151 , and are arranged at equal intervals between the supports  31   k ,  31   l  owing to spring forces of the coil springs  145 . 
         [0078]      FIG. 14  shows the magazine  131  in which a large number of the flat-rechargeable batteries  1  as targets of the charge/discharge test are stored, and as shown in the drawing, the magazine  131  includes: a pair of side plates  161 ,  163  disposed on the left and right of a base  159  in a rectangular shape in a plane view; a plurality of partition walls  165  arranged between the both side plates  161 ,  163 ; the battery pressing plate  133  disposed on one end side (plate  163  side) of a group of the partition walls  165  so as to face the width positioning/fastening member  135 ; and four guide stays  167  passing through four corners of each of the partition walls  165  and the battery pressing plate  133  and bridged between four corners of the side plate  161  and four corners of the side plate  163 , and the partition walls  165  and the battery pressing plate  133  are movable along the guide stays  167 . 
         [0079]    As shown in  FIG. 14  and  FIG. 17 , between the side plate  161  and the battery pressing plate  133 , the partition walls  165  demarcate and form storage chambers each storing one flat-rechargeable battery  1  in a vertical direction, with the electrode terminals  5 ,  7  projected forward (chuck members  83 ,  85  side). The number of the storage chambers demarcated by the partition walls  165  is equal to the number of the upper and lower chuck members  83 ,  85 . 
         [0080]    On a side surface of the battery pressing plate  133 , a not-shown screwing part is formed, and one end side of one adjustment screw  169  inserted through the side plate  163  is screwed to the screwing part. When the adjustment screw  169  is loosened, the partition walls  165  become movable along the guide stays  167  between the side plate  161  and the battery pressing plate  133 , and when the adjustment screw  169  is fastened after the flat-rechargeable batteries  1  are stored in the storage chambers, one for each, the battery pressing plate  133  presses and fixes the partition walls  165 , so that a battery storage width L of the magazine  131  is decided according to the number of the partition walls  165 . 
         [0081]    Further, as shown in  FIG. 14  and  FIG. 19 , on the battery pressing plate  133 , a tapered fastened piece (positioner)  171  projecting toward the fastening arm  139  is provided, and as will be described later, when the magazine  131  is pulled toward the chuck mechanism  173  of this embodiment, the fastening arm  139  first fastens the fastened piece  171  as shown in  FIG. 19 . 
         [0082]    Therefore, the positions of the divided chuck-retaining members  69  and the width-deciding/fastening member  135  which are arranged along the shaft  45  between the left and right support posts  31   k ,  31   l  at equal intervals owing to the spring forces of the coil springs  145  as previously described are newly adjusted so that they are arranged at equal intervals within a dimension of the battery storage width L owing to the spring forces. At this time, the positioning pins  151  provided on the respective divided chuck-retaining members  69  are inserted in the pin insertion holes  153  of the adjacent divided chuck-retaining members  69  to position the divided chuck-retaining members  69 , which prevent the rotation of the chuck-retaining members  43  around the shaft  45 . 
         [0083]    Further, as shown in  FIG. 14  and  FIG. 15 , at the centers of the partition walls  165 , second fastened pieces (positioners)  175  projecting toward the chuck mechanism  173  are provided, and the fastened pieces  175  are tapered and are located on a more back side than the fastened piece  171 . 
         [0084]    As shown in  FIG. 11 , in each of the divided chuck-retaining members  69 , two positioning pins (second guides)  177  inserted through the long hole  91  of the roller mounting plate  71  are provided so as to project forward, and when the fastening arm  139  fastens the fastened piece  171  as is previously described and the magazine  131  is thereafter further pulled toward the chuck mechanism  173 , the two positioning pins  177  fasten the single fastened piece  175  facing them, from left and right. 
         [0085]    Incidentally, as shown in  FIG. 15 , pairs of the two positioning pins  177  are formed to become shorter in order from those of the left and right divided chuck-retaining members  69  to those of the center divided chuck-retaining member  69 , so that all the positioning pins  177  do not fasten the fastened pieces  175  at a time but the positioning pins  177  sequentially fasten the fastened pieces  175  in order from the left and right side positioning pins  177  to the center positioning pins  177 . 
         [0086]    The chuck mechanism  173  according to this embodiment and the magazine  131  are structured as above, and to conduct the charge/discharge test of the flat-rechargeable batteries  1  by using the chuck mechanism  173 , the chuck mechanism  173  is first placed on a predetermined mounting table  179  as shown in  FIG. 16 . 
         [0087]    As shown in  FIG. 15  and  FIG. 16 , in front of the mounting table  179 , a guide mechanism  185  including two guide rails  181  and a movable table  183  movably mounted on the two guide rails  181  is installed. A piston rod of a not-shown air cylinder mounted on a rear surface side of the mounting table  179  is coupled with the movable table  183 , so that the mounting table  179  is movable in the front and rear direction along the guide rails  181  when the air cylinder is driven. 
         [0088]    Next, the magazine  131  in  FIG. 14  in whose storage chambers the plural flat-rechargeable batteries  1  are stored is carried onto the movable table  183  by a stacker crane and the base  159  is fixed to the movable table  183 . At this time, in the magazine  131 , the adjustment screw  169  has already been fastened and the predetermined battery storage width L has been set. 
         [0089]    Consequently, as shown in  FIG. 15  to  FIG. 18 , the magazine  131  is disposed on the movable table  183  so as to face the chuck mechanism  173 , and the electrode terminals  5 ,  7  of the flat-rechargeable batteries  1  are disposed to face the chuck members  83 ,  85  respectively. 
         [0090]    The chuck mechanism  173  and the magazine  131  are pre-designed so that at this time, the fastening arm  139  of the width-deciding/fastening member  135  faces the battery pressing plate  133 . Further, the number of the storage chambers demarcated by the partition walls  165  is equal to the number of the chuck members  83 ,  85  as previously described, and therefore, the number of the chuck members  83 ,  85  and the number of the flat-rechargeable batteries  1  are equal to each other. 
         [0091]    Thereafter, when the air cylinder on the rear surface side of the mounting table  179  is driven to contract the piston rod coupled with the movable table  183 , the fastening arm  139  first fastens the fastened piece  171  of the battery pressing plate  133  while the magazine  131  moves along the guide rails  181  toward the chuck mechanism  173 . 
         [0092]    Then, the adjustment is automatically made anew so that the divided chuck-retaining members  69  arranged between the left and right support posts  31   k ,  31   l  at equal intervals owing to the spring forces of the coil springs  145  are arranged at equal intervals between the width fastening member  135  and the support  31   k  within the dimension of the battery storage width L owing to the spring forces, and at this time, the positioning pins  151  are inserted in the pin insertion holes  153  of the adjacent divided chuck-retaining members  69  to position the divided chuck-retaining members  69 , so that the rotation of the chuck-retaining member  43  around the shaft  45  is constantly prevented. 
         [0093]    In accordance with further movement of the magazine  131 , while the positioning pins  177  projectingly provided on the right and left divided chuck-retaining members  69  with longer length fasten the fastened pieces  175  first, the divided chuck-retaining members  69  therebetween are arranged at equal intervals owing to the spring forces of the coil springs  145 , and then their intervals are further equally adjusted sequentially. Then, as shown in  FIG. 19  and  FIG. 20 , when the magazine  131  moves by a predetermined distance and the air cylinder stops, the electrode terminals  5 ,  7  of each of the flat-rechargeable batteries  1  are disposed between the two metal plates  115 ,  117  of the upper chuck member  83  and the two metal plates  115 ,  117  of the lower chuck members  85  respectively. 
         [0094]    Incidentally, since the exfoliating/fastening members  121  fixed on the metal plates  115 ,  117  have the guides  129  inclining inward from the tip end sides of the chuck members  83 ,  85  toward the fastening surfaces  125  as previously described, such guide members  129  guide the displaced electrode terminals  5 ,  7  to the fastening surfaces  125 . 
         [0095]    Thereafter, when the electric wires of the charge/discharge testing device are coupled with the rear ends of the metal plates  115 ,  117  projecting from the rear surfaces of the chuck mounting plates  113  of the divided chuck-retaining members  69  and the air cylinder  37  is driven, the piston rod  35  extends forward, so that the roller-retaining member  41  (the divided roller-retaining members  67 ) mounted on the piston rod  35  moves forward. Then, when the roller-retaining member  41  thus moves, the metal plates  115 ,  117 , of the chuck members  83 ,  85 , fanning out in a substantially V shape in a plane view are closed by the pairs of rollers  97  as shown in  FIG. 21  and  FIG. 22 , so that the fastening surfaces  125  of the exfoliating/fastening members  121  fixed on the front end sides of the metal plates  115 ,  117  fasten the upper and lower electrode terminals  5 ,  7  of the flat-rechargeable batteries  1  from the left and right. 
         [0096]    In this embodiment, the plural slits  119  are provided in the front and rear direction in the front end of each of the metal plates  115 ,  117  to divide the front end sides of the metal plates  115 ,  117  to small parts, and therefore, even with an assembly error or the like in the metal plates  115 ,  117 , the exfoliating/fastening members  121  of the metal plates  115 ,  117  surely come into pressure-contact with the surfaces of the electrode terminals  5 ,  7 , so that the spike pins  127  projecting from the fastening surfaces  125  exfoliate the oxide films formed on the surfaces of the electrode terminals  5 ,  7 . 
         [0097]    Thereafter, electricity is supplied through the electric wires of the charge/discharge testing device coupled with the rear end sides of the chuck members  83 ,  85  (the metal plates  115 ,  117 ), and the charge/discharge test of the flat-rechargeable batteries  1  each fastened by the chuck members  83 ,  85  is started. 
         [0098]    Then, after the end of the test, when the piston rod  35  of the air cylinder  37  is contracted backward and the roller-retaining member  41  is moved backward, the metal plates  115 ,  117 , of the chuck members  83 ,  85 , closed by the rollers  97  fan out again as shown in  FIG. 19 . 
         [0099]    Thus using the chuck mechanism  173  according to this embodiment at the time of the charge/discharge test of the flat-rechargeable batteries  1  naturally makes it possible to conduct the charge discharge test of a large number of the flat-rechargeable batteries  1  at a time, and also makes it possible to accurately and favorably chuck the electrode terminals  5 ,  7  by the chuck members  83 ,  85  while lightening the troublesome works such as the work of coupling a large number of the flat-rechargeable batteries  1  one by one to the group of the clip-type coupling terminals prior to the charge/discharge test as is required in the conventional example of Patent Document 1 and the work of storing a large number of the flat-rechargeable batteries in the battery container, with the electrode terminals being inserted in the insertion holes of the battery container as is required in the conventional example of Patent Document 2. 
         [0100]    That is, as described above, in this embodiment, on the magazine  131  side, it is only necessary to fasten the flat-rechargeable batteries  1  in the storage chambers, and thereafter, when the magazine  131  is moved close to the chuck mechanism  173 , the fastening arm  139  first fastens the fastened piece  171  of the battery pressing plate  133 , so that the chuck width is adjusted, and thereafter, while the positioning pins  177  with the longer length projectingly provided on the left and right divided chuck-retaining members  69  first fasten the fastened pieces  175 , the divided chuck-retaining members  69  therebetween are arranged evenly by the spring forces of the coil springs  145  so that their intervals are equally adjusted in sequence, and as a result, chuck accuracy is improved while a work load is lightened. 
         [0101]    In addition, it is possible to quickly conduct the charge/discharge test only by carrying the magazine  131  storing a large number of the flat-rechargeable batteries  1  to the front surface of the chuck mechanism  173 , and therefore, a place for the charge/discharge test is not limited. 
         [0102]    Further, the fanning-out metal plates  115 ,  117  of the chuck members  83 ,  85  are closed at a time by using the pairs of rollers  97 , which enables a smooth opening/closing operation of the metal plates  115 ,  117 . Further, the plural slits  119  are provided in the front and rear direction in the front ends of the metal plates  115 ,  117  to divide the front end sides of the metal plates  115 ,  117  into small parts and the displaced electrode terminals  5 ,  7  are guided to the fastening surfaces  125  by the guide members  129  of the exfoliating/fastening members  121 . This structure has advantages that, even if the metal plates  115 ,  117  have assembly errors or the like, the electrode terminals  5 ,  7  can be surely fastened by the metal plates  115 ,  117  (exfoliating/fastening members  121 ) and the oxide films on the surfaces of the electrode terminals  5 ,  7  can be exfoliated favorably by the spike pins  127 . 
         [0103]    Further, the plural divided roller-retaining members  67  are arranged in parallel in the lateral direction to form the roller-retaining member  41  and the plural divided chuck-retaining members  69  are arranged in parallel in the lateral direction to form the chuck-retaining member  43 , which has an advantage of facilitating the change of individual components and maintenance. 
         [0104]    Incidentally, in the above-described embodiment, the pairs of two positioning pins  177  being the second guides are formed to become shorter in order from those of the left and right divided chuck-retaining members  69  toward those of the center divided chuck-retaining member  69 , but the pairs of two positioning pins  177  may be formed to become shorter in order from those on the side of the width-deciding/fastening member  135  being the first guide toward those on the other support  31   k  side, and such an embodiment is capable of attaining the desired proposition similarly to the above-described embodiment. 
         [0105]    Further, in the above-described embodiment, as the driver moving the roller-retaining member  41  back and forth, the air cylinder  37  is used, but the driver is not limited to the air cylinder, and a motor of any other actuator may be used as the driver. 
         [0106]    The many features and advantages of the embodiments are apparent from the detailed specification and, thus, it is intended by the appended claims to cover all such features and advantages of the embodiments that fall within the true spirit and scope thereof. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the inventive embodiments to the exact construction and operation illustrated and described, and accordingly all suitable modifications and equivalents may be resorted to, falling within the scope thereof.