Abstract:
A multi slide doors device comprises a frame, a power module, a guide pulley module and a plurality of door panels. The first door panel is operated by the power module to move upward or downward. Simultaneously, the second door panel also moves in the same direction with a different moving distance by the transmission of the pulleys in the pulley module. The moving distance of the second door panel is larger than that of the first door panel. In this way, the plurality of door panels can be opened or closed quickly so that the defect of spending long time in opening or closing due to in-sequence moving of door panels and of inconvenient maintenance due to complexity in designing of convention technology can be improved.

Description:
BACKGROUND OF THE INVENTION 
       [0001]    1. Field of the Invention 
         [0002]    The present invention relates to an automatic multi slide doors device, more particularly to a multi slide doors device which enables quick opening and closing of door panels by adopting movable pulleys. 
         [0003]    2. Brief Description of Prior Arts 
         [0004]    Modern industries have already been in automation control stage, therefore the demand of automatic door device is up growing and is fused in people&#39;s daily life, such as automatic doors used in public transportation, home garage, and factory entrance. In addition, experiment cabinets used in laboratory or large machinery equipments often have application of automatic doors. When the door is closed, the operator can be isolated from the machinery equipment so as to prevent the operator from mechanical disasters. The automatic door is powered by either electric, pneumatic or hydraulic means so that the door panels can be opened or closed. Typically, the structure of an automatic door has a plurality of door panels, and the door panels of the conventional automatic door device are often operated in sequence, such as the description mentioned in the following prior art for reference:
       (1) Taiwanese Patent Gazette No. M344385 entitled “Balancing Weight device”   (2) Taiwanese Patent Gazette No. M349960 entitled “Folding Device Enabling Flexible Adjustment”       
 
         [0007]    However, it is apparent from the description disclosed in the prior art that the in-sequence operation of a plurality of door panels often takes a long time in door opening and closing, as the first door panel will drive the second door panel to move downward until the first door panel itself moves downward to a predetermined position. There is an additional prior art in which an automatic door having a structure with pulleys and gears combined together to achieve quick opening and closing of door panels is disclosed as shown in  FIG. 1 . Referring to  FIG. 1 , the automatic door device  10  is formed by two struts  101 , a pneumatic cylinder  102 , a gear module  103 , a plurality of pulleys  104  and a plurality of door panels ( 105 ,  106 ,  107 ). The plurality of door panels ( 105 ,  106 ,  107 ) are disposed between the two struts  101 . The first door panel  105  and the second door panel  106  both have a plurality of pulleys  104  attached therewith, so that the first door panel  105  and the second door panel  106  can slide either upward or downward between the two struts  101 . While the third door panel  107  is usually in stationary state. The pneumatic cylinder  102  is connected with one end at one side of the second door panel  106  through a connecting member  1021 . The gear module  103  includes a gear  1031 , which is rotatably disposed on the other end at one side of the second door panel  106 , and a rack  1032  meshed with the gear  1031 , one end of the rack  1032  is fixed on the first door panel  105  (not shown in figure) and the other end is fixed on the strut  101 . When the pneumatic cylinder  102  is filled with compressed air or the compressed air is released therefrom, the connecting member  1021  can be operated to move, so as to drive the second door panel  106  and the gear  1031  moving the same distance as the connecting member  1021 . Furthermore, the second door panel  106  is operated by the combination of the gear  1031  and the rack  1032  to move simultaneously so as to achieve the effect of quick opening or closing. There are still another prior art for reference:
       (1) China Patent Gazette No. CN 2461961 entitle “Hydraulic Water Gate”   (2) US Patent Gazette No. U.S. Pat. No. 8,272,179 entitled “Work Station Safety Barrier”   (3) US Patent Gazette No. U.S. Pat. No. 6,311,757 entitled “Door or Gate Closure”       
 
         [0011]    However, it is apparent from the above prior art that those automatic doors devices enabling quick opening and closing of door panels disclosed in the prior art are all provided with a mechanical structure containing a plurality of pulleys (including stationary and movable pulleys) and gears. This often causes complexity in internal structure and may results in inconvenient maintenance of the automatic doors device. Moreover, the more the mechanical transmission mechanisms are provided, the bigger the maximum static friction becomes, so that much more energy is required to operate the automatic multi slide doors device. Therefore, how to reduce the complexity of the structural design of device and still enabling the effect of quick opening and closing of door panels is a big issue of the present invention. 
       SUMMARY OF THE INVENTION 
       [0012]    In view of the above mentioned problems, the inventor proposes a better entity product based on his abundant experience in product development and manufacturing in relevant field for a couple of years and according to the research and analysis conducted on the convention automatic doors device. Therefore, the main object of the present invention is to provide an automatic multi slide doors device enabling quick opening and closing of door panels. 
         [0013]    In order to achieve above objects, the automatic multi slide doors device of the present invention mainly comprises a frame body, a power module, a guiding pulley module and a plurality of door panels. The pluralities of door panels are assembled on the frame body. The power module is disposed on one end of the frame body and is fixedly connected with the first door panel through a first connecting member and a second connecting member. Furthermore, the guiding pulley module includes a first pulley and a first rope. The first pulley is disposed on one end of the first door panel, while the first rope is wounded around the first pulley, one end of the first rope is fixed on the frame body and the other end thereof is fixed on the second door panel. Therefore, when the power module provides a power source to operate the first door panel to move, the second door panel simultaneously moves in the same direction as the first door panel by the transmission action of the guiding pulley module, and the moving distance of the second door panel is larger than that of the first door panel. 
     
    
     
       BRIEF DESCRIPTION OF ACCOMPANYING DRAWINGS 
         [0014]    The present invention will be better understood by the detailed description of a preferred embodiment with reference to the accompanied drawings, in which: 
           [0015]      FIG. 1  is a schematic view of a conventional automatic multi slide doors device; 
           [0016]      FIG. 2  is a perspective schematic view showing the appearance of the present invention; 
           [0017]      FIG. 3  is a detailed view (I) of the structure of the present invention; 
           [0018]      FIG. 4  is a detailed view (II) of the structure of the present invention; 
           [0019]      FIG. 5  is a detailed view (III) of the structure of the present invention; 
           [0020]      FIG. 6  is a detailed view (IV) of the structure of the present invention; 
           [0021]      FIG. 7  is a schematic view showing the implementation of the present invention; 
           [0022]      FIG. 8  is a schematic view of a still another embodiment (I) of the present invention; 
           [0023]      FIG. 9  is a schematic view of a still another embodiment (II) of the present invention; 
           [0024]      FIG. 10  is a schematic view of a still another embodiment (III) of the present invention. 
       
    
    
     DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS 
       [0025]    Referring to  FIG. 2 , the automatic multi slide doors device  20  of the present invention is mainly formed by a frame body  201 , a power module  202 , a guiding pulley module  203 , a first door panel  204  and a second door panel  205 . The frame body  201  includes a plurality of struts  2011 ; the first door panel  204  and a second door panel  205  are assembled between at least two struts  2011  in such a manner that the first door panel  204  is disposed above the second door panel  205 . Each of the first door panel  204  and the second door panel  205  has a design of inclined angle Y provided on the lower edge such that the cutting liquid attached to the first door panel  204  or the second door panel  205  can be guided by the inclined angle Y to flow toward both sides so as to prevent the cutting liquid (not shown in figure) from dropping down onto the inlet or the outlet upon the opening of the door panels. The power module  202 , which is to provide power source, is assembled on one end of one strut  2011  and is fixedly connected with the first door panel  204 . The guiding pulley module  203  is a simple mechanical structure of pulley, which is assembled on one end of the first door panel  204  and is fixedly connected with the power module  202  and second door panel  205 . Therefore, when the power module  202  actuates the first door panel  204  to move upward, the second door panel  205  also moves upward by the transmission action of the guiding pulley module  203 . 
         [0026]    Referring to  FIG. 3 , the power module  202  includes an actuating unit  2021  and an interlocking unit  2022 . The actuating unit  2021  is assembled on one end of one strut  2011 , as shown in  FIG. 2 . The actuating unit  2021  can be a device enabling the transformation of rotary motion into linear motion, and which can be anyone of a pneumatic cylinder, a hydraulic cylinder, a linear motor, a rotary motor combined with a lead screw or a reel, but is not limited to the above. The interlocking unit  2022  is assembled on the actuating unit  2021  and can conduct linear reciprocate motion thereon. Furthermore, the interlocking unit  2022  is fixedly connected with the first door panel  204  through a first connecting member  207  and a second connecting member  208 . The first connecting member  207  can be formed in advance on the second connecting member  208  or can be assembled thereon subsequently. Referring to  FIG. 4 , the actuating unit  2021  comprises a first pressure input and output terminal  2023  and a second pressure input and output terminal  2024  to conduct charging of a pressurized fluid into the interior of the actuating unit  2021  or releasing of the pressurized fluid therefrom. The pressurized fluid can be either compressed air (in case the actuating unit  2021  is a pneumatic cylinder) or pressurized liquid (in case the actuating unit  2021  is a hydraulic cylinder), but is not limited to this. Therefore, by performing the charging of a pressurized fluid into the interior of the actuating unit  2021  or releasing the pressurized fluid therefrom through the first pressure input and output terminal  2023  and the second pressure input and output terminal  2024 , the interlocking unit  2022  can be actuated to move and to drive the first door panel  204  to move in the same direction. 
         [0027]    Referring to  FIG. 5  and  FIG. 2 , the guiding pulley module  203  includes a first pulley  2031  and a first rope  2032 . The first pulley  2031  is assembled on one end of the first door panel  204  and is received within a slide channel  2012  of the strut  2011 . Furthermore, the first pulley  2031  is fixedly connected with the interlocking unit  2022  through the second connecting member  208 . As the central shaft of the first pulley  2031  is in movable state, the first pulley  2031  is a mechanical structure of a movable pulley. Further, the first rope  2032  can be either a cable or a chain which is wound around the first pulley  2031 , but is not limited to this. Referring to  FIG. 6 , one end of the first rope  2032  is fixed on the strut  2011  (not shown in figure) and the other end is fixed on the second door panel  205 . In a preferred embodiment of the present invention, the other end of the first rope  2032  is penetrated through the second door panel  205  and is locked on the first counterpart lock member  210  through a first lock member  209 . Accordingly, the first rope  2032  can pull the second door panel  205  to move by the transmission of the first pulley  2031 . As the first rope  2032  is penetrated through the second door panel  205  and the second door panel  205  descends by its own weight (i.e., by the weight of the second door panel  205  itself only), even when the second door panel  205  is obstructed by an obstacle to stop the movement, the first rope  2032  can still be operated according to its original movement route so that the obstacle can only bear the weight of the second door panel  205 . When the obstacle is an operator, the damage to the operator can be suppressed to minimum. Therefore, additional sensing device is not required and the present invention is not that easy to be damaged from the obstruction by the obstacle. In addition, by the weights of the first lock member  209  and the first counterpart lock  201 , bending resulted from the obstruction of the second door panel by an obstacle is not occurred on the first rope  2032  during its operation process. 
         [0028]    Referring to  FIG. 7  in collocation with  FIGS. 3 to 6 , after the charging of a pressurized fluid into the interior of the actuating unit  2021  or releasing of the pressurized fluid therefrom through the first pressure input and output terminal  2023  and the second pressure input and output terminal  2024 , the interlocking unit  2022  is actuated to move upward a distance D 1 , and further to drive the first door panel  204  to move the same distance A 1  in the same direction, i.e., A 1  is equal to D 1 . Moreover, the first rope  2032  can pull the second door panel  205  to move a different distance B 1  in the same direction by the transmission of the first pulley  2031 , i.e., B 1 &gt;A 1 . In the preferred embodiment, the distance B 1  is two times the distance A 1 . Therefore, when the actuating unit  2021  actuates the interlocking unit  2022  to move upward from its bottom to the top (i.e., the distance D 2 ), the first door panel  204  moves upward a distance A 2  consistent with the distance D 2 , and reaches its fully opened state. Simultaneously, the second door panel  205  moves upward a distance B 2  which is double the distance A 2  (the moving speed of the second door panel  205  is double that of the first door panel  204 ). Therefore, the first door panel  204  and the second door panel  205  can simultaneously reach fully opened state. Further, the actuation for the door closing is the same as above, and is omitted here accordingly. 
         [0029]    Referring to  FIG. 8  in collocation with  FIG. 5 , the guiding pulley module  203  includes a second pulley  2033  which is assembled on the other end of the first door panel  204  and is similarly received in the slide channel  2012 . Furthermore, the first rope  2032  is wound around the second pulley  2033  and both ends of the first rope  2032  are fixed on the frame body  201  (not shown in figure). Moreover, the first rope  2032  located above the second door panel  205  is assembled with a second lock member  211  which is mated with a second counterpart lock member  212  to lock with each other. When the first door panel  204  move downward, the second pulley  2033  is interlocked to drive the second lock member  211  together with the second counterpart lock member  212  to move downward, and further to drive the second door panel  205  to move. Therefore, the failure of actuation in accordance with a predetermined stroke because the weight of the second door panel  205  being less than the frictional force can be solved. 
         [0030]    Referring to  FIG. 10  in collocation with  FIG. 2 , the automatic multi slide doors device  20  of the present invention can also be implemented in the case having more than two door panels. In this embodiment, the case having three door panels is taken as an example. As shown in the figures, a third door panel  206  is assembled between at least two struts  2011 , and the third door panel  206  is disposed below the second door panel  205 . Further, the guiding pulley module  203  additionally includes a third pulley  2034  and a second rope  2035 . The third pulley  2034  is assembled on one end of the second door panel  205 . As the central shaft of the third pulley  2034  is in movable state, the third pulley  2034  is a mechanical structure of a movable pulley. Further, the second rope  2035  can be either a cable or a chain wound around the third pulley  2034 , but it is not limited to this. One end of the second rope  2035  is fixed on a fixed point P of the first door panel  204 , and the other end is fixed on the third door panel  206 . When the first door panel  204  moves upward, the second door panel  205  also moves upward by the transmission action of the first pulley  2031  and the first rope  2032 , and the third door panel  206  moves upward simultaneously by the transmission action of the second pulley  2033  and the second rope  2035 . The moving distance of the second door panel  205  is two times that of the first door panel  204 , while the moving distance of the third door panel  206  is three times that of the first door panel  204 . In other words, the moving distance of the Nth door panel is N times that of the first door panel  204  (the moving speed of the Nth door panel is N times that of the first door panel  204 ). Referring to  FIG. 10 , when the actuating unit  2021  actuates the interlocking unit  2022  to move upward from its bottom to the top (i.e., the distance D 3 ), the first door panel  204  moves upward a distance A 3  and reaches its fully opened state. Simultaneously, the second door panel  205  moves upward a distance B 3  which is two times of the distance A 3 , and the third door panel  206  moves upward a distance C 3  which is three times the distance A 3 . Therefore, the first door panel  204 , the second door panel  205  and the third door panel  206  can simultaneously reach fully opened state. Further, the actuation for the door closing is the same as above, and is omitted here accordingly. 
         [0031]    Based on foregoing, the automatic multi slide doors device of the present invention is mainly formed by a frame body, a power module, a guiding pulley module, a first door panel and a second door panel. The frame body includes at least two struts for assembling the first door panel, the second door panel and the power module. The power module includes an actuating unit and an interlocking unit. The interlocking unit is disposed on the actuating unit and is fixedly connected with the first door panel through a first connecting member and a second connecting member. Moreover, the guiding pulley module includes a first pulley and a first rope. The first pulley is assembled on one end of the first door panel and is fixedly connected with the interlocking unit through the second connecting member. Furthermore, the first rope is wound around the first pulley, one end of the first rope is fixed on the strut and the other end thereof is fixed on the second door panel. Alternatively, the other end of the first rope can be penetrated through the second door panel and then is locked with a counterpart lock through a first lock member. Therefore, when the actuating unit operates the interlocking unit to move a certain distance, the first door panel is driven to move a same distance in the same direction; and the first rope can pull the second door panel to move a different distance in the same direction by the transmission action of the first pulley, and the moving distance of the second door panel is greater than that of the first door panel. In this manner, the present invention implements based on above can surely achieve the object of providing an automatic multi slide doors device enabling quick opening and closing of the door panels. 
         [0032]    While the present invention has been described by preferred embodiments in conjunction with accompanying drawings, it should be understood the embodiments and the drawings are merely for descriptive and illustrative purpose, not intended for restriction of the scope of the present invention. Equivalent variations and modifications conducted by person skilled in the art without departing from the spirit and scope of the present invention should be considered to be still within the scope of the present invention.