Abstract:
A knockdown band saw guide seat includes multiple separate components. The components can be assembled and connected with each other as building blocks. Accordingly, the relative positions between the assembled components can be respectively adjusted. In addition, the variety, number and position of the assembled components can be changed in accordance with practical requirement to provide necessary function for the operation.

Description:
BACKGROUND OF THE INVENTION 
       [0001]    1. Field of the Invention The present invention relates generally to a band saw machine, and more particularly to a knockdown band saw guide seat. 
         [0002]    2. Description of the Related Art 
         [0003]    In order to ensure that the band saw of a band saw machine is properly guided and located, conventionally, multiple bearings or guide poles are used to abut against and attach to the faces of the band saw except where the saw teeth are positioned. The bearings or guide poles serve to restrict and guide the band saw to ensure that the band saw is operated without deflecting or displacing. In this case, a work piece can be precisely sawed. 
         [0004]    Conventionally, in order to precisely position the bearings or guide poles in adjacency to the faces of the band saw, the bearings or the guide poles are rested on a guide seat, which is securely mounted on the band saw machine in adjacency to the band saw thereof.  FIGS. 1 and 2  show a conventional guide seat  1 . The guide seat  1  has a guide seat main body  2  on which a back guide wheel  3  is disposed to attach to the back of the band saw. A left adjustment seat  4  and a right adjustment seat  5  are respectively slidably connected in the slide channels formed on two opposite sides of the guide seat main body  2  for carrying multiple rolling bearings  6  in adjacency to two lateral faces of the band saw. Accordingly, the band saw is held between the rolling bearings  6  and the back guide wheel  3 . 
         [0005]    The conventional guide seat  1  has a slide connection structure between the left and right adjustment seats  4 ,  5  and the main body  2 . The slide connection structure is able to enlarge the range of the adjustable position and state to achieve better locating effect. However, the back guide wheel  3  is directly connected in the fixing hole formed on the main body  2  via shaft rod so that the back guide wheel  3  is limited to a fixed position without possibility of change. Under such circumstance, even though the left and right adjustment seats  4 ,  5  are movable along with the change of the band saw, the left and right adjustment seats  4 ,  5  are still restricted to an abutment state in which the back of the band saw and the back guide wheel must keep properly adjacent to each other. As a result, the left and right adjustment seats  4 ,  5  can hardly provide mobile holding and locating effect for the band saw. 
       SUMMARY OF THE INVENTION 
       [0006]    It is therefore a primary object of the present invention to provide a knockdown band saw guide seat, which includes multiple separate components. The components can be assembled and connected with each other as building blocks. Accordingly, the relative positions between the assembled components can be respectively adjusted. In addition, the assembled components can be changed in accordance with practical requirement to provide necessary function. 
         [0007]    To achieve the above and other objects, the knockdown band saw guide seat of the present invention includes: a bed member having a seat section with a predetermined length, a first slide connection section and a second slide connection section with identical shape being respectively disposed on adjacent sides of the seat section, the first and second slide connection sections extending in a lengthwise direction of the seat body; a first assembling member having a first body section, a third slide connection section being formed on the first body section, the third slide connection section having a cross-sectional shape complementary to the cross-sectional shape of the first slide connection section, the third slide connection section being slidably connectable with the first slide connection section; two second assembling members, each of the second assembling members having a second body section, a fourth slide connection section being formed on the second body section, the fourth slide connection section having a cross-sectional shape complementary to the cross-sectional shape of the second slide connection section, the fourth slide connection section being slidably connectable with the second slide connection section; and a locating set having multiple locating members respectively disposed between the first and second body sections and the seat section to restrict relative displacement between the slidably connected first and third slide connection sections or the slidably connected second and fourth slide connection sections. 
         [0008]    In the above knockdown band saw guide seat, the bed member further has at least one expansion slide connection section. The expansion slide connection section is disposed on an end face of the seat section, which end face is other than the end faces where the first and second slide connection sections are positioned. The expansion slide connection section extends in the lengthwise direction of the seat section. 
         [0009]    In the above knockdown band saw guide seat, the expansion slide connection section has a cross-sectional shape complementary to the cross-sectional shape of the first slide connection section or the second slide connection section. 
         [0010]    In the above knockdown band saw guide seat, the cross sections of the first and second slide connection sections are identically dovetail-shaped. The first and second slide connection sections respectively protrude from the corresponding sides of the seat section. 
         [0011]    In the above knockdown band saw guide seat, the locating set further includes multiple locating holes respectively disposed on the first and second body sections. Each locating hole has an axis. The axes of the locating holes are normal to the corresponding end faces of the seat section. 
         [0012]    In the above knockdown band saw guide seat, the locating members are bolts respectively screwed in the corresponding locating holes. Each bolt has a tail end. The tail ends of the bolts abut against the corresponding first slide connection section or the second slide connection section. 
         [0013]    In the above knockdown band saw guide seat, the first assembling member further has a first shaft hole formed through the first body section and each second assembling member further has a second shaft hole formed through the second body section. The first shaft hole has an axis. The second shaft hole also has an axis. The axes of the first and second shaft holes are parallel to each other. 
         [0014]    In the above knockdown band saw guide seat, each second assembling member further includes a fifth slide connection section. The fifth slide connection section is formed on an end face of the second body section, which end face other than the end face where the fourth slide connection section is positioned. The fifth slide connection section has a cross-sectional shape complementary to the cross-sectional shape of the second slide connection section. The fifth slide connection section is slidably connectable with the second slide connection section. 
         [0015]    In the above knockdown band saw guide seat, when the fifth slide connection sections of the second assembling members are slidably disposed on the second slide connection section, the fourth slide connection sections face each other. 
         [0016]    In the above knockdown band saw guide seat, the fourth and fifth slide connection sections are dovetail channels. 
         [0017]    The present invention can be best understood through the following description and accompanying drawings, wherein: 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0018]      FIG. 1  is a perspective exploded view of a conventional band saw guide seat; 
           [0019]      FIG. 2  is a perspective assembled view of the conventional band saw guide seat; 
           [0020]      FIG. 3  is a perspective exploded view of a first embodiment of the present invention; 
           [0021]      FIG. 4  is a perspective assembled view of the first embodiment of the present invention; 
           [0022]      FIG. 5  is a sectional view of the first embodiment of the present invention, taken along line  5 - 5  of  FIG. 3 ; 
           [0023]      FIG. 6  is a sectional view of the first embodiment of the present invention, taken along line  6 - 6  of  FIG. 3 ; 
           [0024]      FIG. 7  is a perspective view showing that the first embodiment of the present invention is used as an upper guide seat of the band saw of the band saw machine; 
           [0025]      FIG. 8  is a perspective view showing that the first embodiment of the present invention is used as a lower guide seat of the band saw of the band saw machine; 
           [0026]      FIG. 9  is a perspective exploded view of a second embodiment of the present invention; 
           [0027]      FIG. 10  is a perspective assembled view of the second embodiment of the present invention; 
           [0028]      FIG. 11  is a sectional view of the second embodiment of the present invention, taken along line  11 - 11  of  FIG. 10 ; 
           [0029]      FIG. 12  is a perspective view showing that the second embodiment of the present invention is used as an upper guide seat of the band saw of the band saw machine; and 
           [0030]      FIG. 13  is a perspective view showing that the second embodiment of the present invention is used as a lower guide seat of the band saw of the band saw machine. 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
       [0031]    Please refer to  FIGS. 3 to 6 . According to a first embodiment, the knockdown band saw guide seat  10  of the present invention includes a bed member  20 , a first assembling member  30 , two second assembling members  40  and a locating set  50 . 
         [0032]    The bed member  20  has a cuboidal seat section  21  with a certain length. The seat section  21  has an upper end face  211  and a left end face  212  in adjacency to each other. A first slide connection section  22  with a dovetail-shaped cross section and a second slide connection section  23  with an identical dovetail-shaped cross section are respectively disposed on the upper end face  211  and the left end face  212  of the seat section  21  to protrude from the upper end face  211  and the left end face  212 . The first and second slide connection sections extend in a lengthwise direction of the seat body  21  in parallel to each other. The seat section  21  further has a bottom end face  213  and a right end face  214  in adjacency to each other. The bottom end face  213  and the right end face  214  extend in the lengthwise direction of the seat body  21  in parallel to each other. Two expansion slide connection sections  24  are respectively formed on the bottom end face  213  and the right end face  214  of the seat section  21 . The expansion slide connection sections  24  are two dovetail channels with a shape complementary to the shape of the first and second slide connection sections  22 ,  23 . A connection blind hole  25  is formed on the right end face  214  of the seat section  21 . The axis of the connection blind hole  25  is normal to the length of the seat section  21 . 
         [0033]    The first assembling member  30  has a cuboidal first body section  31  with a certain length and a width equal to the width of the upper end face  211  of the seat section  21 . The length of the first body section  31  is about one half the length of the seat section  21 . The first body section  31  has a bottom end face  311  extending in the lengthwise direction of the first body section  31 . A third slide connection section  32  is formed on the bottom end face  311 . The third slide connection section  32  is a dovetail channel with a cross-sectional shape complementary to that of the first slide connection section  22 . The third slide connection section  32  extends in the lengthwise direction of the first body section  31  to slidably connect with the first slide connection section  22 , whereby the first assembling member  30  can be slidably disposed on the seat body  21 . A first shaft hole  33  is formed through the first body section  31  between a left end face  312  and a right end face  313  of the first body section  31 . The axis of the first shaft hole  33  is normal to the length of the first body section  31 . 
         [0034]    Each of the second assembling members  40  has a cuboidal second body section  41  with a shorter length. The second body section  41  has a right end face  411  extending in the lengthwise direction of the second body section  41 . A fourth slide connection section  42  is formed on the right end face  411 . The fourth slide connection section  42  is a dovetail channel with a cross-sectional shape complementary to that of the second slide connection section  23 . The fourth slide connection section  42  extends in the lengthwise direction of the second body section  41  to slidably connect with the second slide connection section  23 , whereby the second assembling member  40  can be slidably disposed on the seat body  21 . A second shaft hole  43  is formed through the second body section  41  between a front end face  412  and a rear end face  411  of the second body section  41 . The axis of the second shaft hole  43  is normal to the length of the second body section  41  and parallel to the axis of the first shaft hole  33 . 
         [0035]    The locating set  50  is used to locate the first and second assembling members  30 ,  40  on the seat section  21  in a relative position. The locating set  50  includes multiple locating holes  51  respectively disposed in the first and second body sections  31 ,  41 . The axes of the locating holes  51  are normal to the corresponding end faces of the seat section  21 , on which the first and second body sections  31 ,  41  are respectively slidably connected. The locating set  50  further includes multiple locating members  52 , which are bolts screwed in the corresponding locating holes  51 . The tail ends of the bolts  52  abut against the dovetail faces of the corresponding first slide connection section  22  or the second slide connection section  23 . Accordingly, by means of the tightening of the locating members  52 , the first and second assembling members  30 ,  40  are securely connected and located on the seat section  21 . 
         [0036]    According to the above arrangement, the bed member  20  of the knockdown band saw guide seat  10  serves as a main body and the first and second assembling members  30 ,  40  can be respectively independently moved on the first and second slide connection sections  22 ,  23  to a desired position according to the necessary relative position without obstructing or affecting each other. Accordingly, even if the position of the connection blind hole  25  of the bed member  20  for mounting on the band saw machine has a larger processing error, the respective components can be independently moved to adjust the necessary relative position to a state where the band saw can be still properly guided and held. 
         [0037]    As aforesaid, the first and second assembling members  30 ,  40  can be disposed on the first and second slide connection sections  22 ,  23  of the bed member  20 . In addition, some extra components can be further slidably connected on the first and second slide connection sections  22 ,  23  or he expansion slide connection sections  24  according to practical use requirement. In this case, another component in the form of a block body necessary for the operation can be directly connected onto the bed member  20  (as shown by the phantom lines of  FIG. 3 ). This can enhance the mobility, convenience and expandability of the knockdown band saw guide seat  10  in use. 
         [0038]    With respect to the practical use, the knockdown band saw guide seat  10  can serve as an upper guide seat  10   a  of the band saw of a band saw machine as shown in  FIG. 7 . Alternatively, the knockdown band saw guide seat  10  can serve as a lower upper guide seat  10   b  of the band saw of a band saw machine as shown in  FIG. 8 . In comparison with the conventional technique, the knockdown band saw guide seat  10  of the present invention has enhanced function and better effect. 
         [0039]    Please now refer to  FIGS. 9 to 11 , which show a second embodiment of the knockdown band saw guide seat  10 ′ of the present invention. The second embodiment is substantially identical to the first embodiment in technical content. The second embodiment is different from the first embodiment in that the second assembling member  40 ′ further includes a fifth slide connection section  44 . The fifth slide connection section  44 ′ is formed on the end face of one end of the cuboidal second body section  41 , which end face is adjacent to the end face where the fourth slide connection section  42 ′ is positioned. The cross-sectional shape of the fifth slide connection section  44 ′ is identical to that of the fourth slide connection section  42 ′. The fifth slide connection section  44 ′ is also a dovetail channel in which the second slide connection section  23 ′ can be slidably dovetailed. 
         [0040]    Accordingly, when assembling the knockdown band saw guide seat  10 , the fifth slide connection section  44 ′ of the second assembling member  40 ′ can be slidably disposed on the second slide connection section  23 ′ and locked and located with the corresponding locating members  52 . Under such circumstance, the fourth slide connection sections  42 ′ can be positioned at an interval with their openings facing each other. In this case, an upper guide seat  10   a ′ of the band saw of the band saw machine is achieved as shown in  FIG. 12 or 13 . Some guide blocks  60 ,  61 ′ are made of bakelite or ceramic material with different shapes. The guide blocks  60 ,  61 ′ have dovetail sections. The shape of the dovetail sections is identical to the shape of the second slide connection section  23 . The guide blocks  60 ,  61 ′ are directly slidably disposed in the fourth slide connection section  42 ′ in pair to hold and locate the band saw therebetween and guide the band saw. 
         [0041]    The above embodiments are only used to illustrate the present invention, not intended to limit the scope thereof. Many modifications of the above embodiments can be made without departing from the spirit of the present invention.