Abstract:
The present invention relates to a breaker of a reinforced glass, including a power source for driving a breaking cylinder to compress a strong spring. When the compressed strong spring is released, the strong spring may produce an instantaneous bounce force so as to drive the breaking cylinder to strongly hit and break the reinforced glass, thereby breaking the reinforced glass quickly and efficiently.

Description:
BACKGROUND OF THE INVENTION  
         [0001]    1. Field of the Invention  
           [0002]    The present invention relates to a breaker of a reinforced glass, and more particularly to a breaker that may produce an instantaneous bounce force to drive the breaking cylinder to strongly hit and break the reinforced glass, thereby breaking the reinforced glass quickly and efficiently.  
           [0003]    2. Description of the Related Art  
           [0004]    The closest prior art of which the applicant is aware is disclosed in the Taiwanese Patent Publication No. 363426, which discloses a conventional breaker which includes a box fixed on a corner of a reinforced glass window. The box contains a slide track which is fitted with a slide base which has a front side secured with a motor which has a rotation shaft connected to a gravity rod that is rested on the reinforced glass window. The slide track has a rear side provided with a strong spring pushing the slide base.  
           [0005]    Thus, when an accident happens, and it is necessary to hit and break the reinforced glass window, the motor may drive the gravity rod to rotate at a high speed, so that the conic head of the gravity rod may be pushed by the strong spring to drill a hole in the reinforced glass window, so as to break the reinforced glass window, thereby achieving the purpose of escape.  
           [0006]    However, the conventional breaker of a reinforced glass window has the following disadvantages.  
           [0007]    1. The strong spring is disposed at a compressed state during a long period of time, so that the strong spring easily produces an elastic fatigue, thereby failing the breaker.  
           [0008]    2. The conic head of the gravity rod pushed by the strong spring needs to take a great deal of time so as to drill a hole in the reinforced glass window, thereby wasting time of escape.  
           [0009]    3. The conic head of the gravity rod pushed by the strong spring can only drill a small hole in the reinforced glass window, and the user has to use other article to break and enlarge the small hole for escape, thereby wasting time of escape.  
         SUMMARY OF THE INVENTION  
         [0010]    The present invention has arisen to mitigate and/or obviate the disadvantage of the conventional breaker of a reinforced glass window.  
           [0011]    The primary objective of the present invention is to provide a breaker that may produce an instantaneous bounce force to drive the breaking cylinder to strongly hit and break the reinforced glass, thereby breaking the reinforced glass quickly and efficiently.  
           [0012]    In accordance with the present invention, there is provided a breaker of a reinforced glass, comprising: a body, having a first end formed with a closed end, and a second end having an end face formed with a slide groove and a through hole in parallel with each other, a breaking cylinder slidably mounted in the through hole, an elastic member mounted in the breaking cylinder and rested on the closed end of the body, a slide base slidably mounted in the slide groove, a power source mounted in the body for moving the slide base, a clutch device mounted on the slide base and detachably locked on one end of the breaking cylinder.  
           [0013]    Preferably, the closed end of the body is sealed by a support plate, the closed end of the body is formed with a receiving groove communicated with the slide groove, the closed end of the body is formed with a guide groove that is communicated with and has an inner diameter greater than that of the through hole, and a connecting hole is connected between the slide groove and the through hole of the body.  
           [0014]    Preferably, the power source is mounted in the receiving groove of the body, and has one end provided with a ball screw that is directed toward the slide groove, the ball screw may be driven by the power source to rotate, the ball screw is positioned and supported in the slide groove by a bearing, the slide base is slidably mounted in the slide groove, and has a center formed with a screw hole screwed on the ball screw, so that when the ball screw is rotated by the power source, the slide base may slide on the ball screw by guidance of the slide groove.  
           [0015]    Preferably, the clutch device is a clutch swing bar, the slide base has one side formed with two pivot ears received in the connecting hole of the body for pivoting the clutch swing bar which may swing horizontally in the connecting hole of the body, the slide base is formed with a longitudinally extended cutout located between the two pivot ears, a guide rod has a first end inserted into the cutout of the slide base, and a second end screwed on a side face of the body, the clutch swing bar has a first end pivotally mounted between the two pivot ears of the slide base, and a second end having a first side formed with a protruded stop portion and a second side formed with a protruded guide portion, the stop portion of the clutch swing bar has a free end formed with a circular nose end, the guide portion of the clutch swing bar has a free end pivoted with a roller, the stop portion of the clutch swing bar is rested on the end face of the breaking cylinder, and the roller of the guide portion of the clutch swing bar is rested on the guide rod of the slide base.  
           [0016]    Preferably, the breaking cylinder is slidably mounted in the guide groove and the through hole of the body, and has a closed first end provided with a striking needle, and a second end having an outer periphery formed with an annular locking flange that may be rested and locked in the guide groove of the body, and the breaking cylinder has an inner portion formed with a chamber for receiving the strong spring which is rested on a support plate.  
           [0017]    Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings. 
       
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0018]    [0018]FIG. 1 is an exploded perspective view of a breaker of a reinforced glass in accordance with a preferred embodiment of the present invention;  
         [0019]    [0019]FIG. 2 is a plan cross-sectional assembly view of the breaker of a reinforced glass as shown in FIG. 1; and  
         [0020]    [0020]FIG. 3 is a schematic operational view of the breaker of a reinforced glass as shown in FIG. 2 in use. 
     
    
     DETAILED DESCRIPTION OF THE INVENTION  
       [0021]    Referring to the drawings and initially to FIGS. 1 and 2, a breaker of a reinforced glass in accordance with a preferred embodiment of the present invention comprises a body  10 , a power source  20 , a slide base  30 , a clutch swing bar  40 , a breaking cylinder  50 , and a strong spring  60 .  
         [0022]    The body  10  is a rectangular base, and has a first end face and a second end face. The first end face of the body  10  is formed with a receiving groove  11 , and a guide groove  13  located in parallel with the receiving groove  11 . The second end face of the body  10  is formed with a slide groove  12  that is communicated with the receiving groove  11  and has an inner diameter smaller than that of the receiving groove  11 . The second end face of the body  10  is also formed with a through hole  14  that is communicated with the guide groove  13  and has an inner diameter smaller than that of the guide groove  13 . The through hole  14  is located in parallel with the slide groove  12 . The second end face of the body  10  is formed with a connecting hole  15  that is connected between the slide groove  12  and the through hole  14 .  
         [0023]    The power source  20  is received in the receiving groove  11  of the body  10 , and has one end provided with a ball screw  21  that is directed toward the slide groove  12 . The ball screw  21  may be driven by the power source  20  to rotate. The ball screw  21  is positioned and supported in the slide groove  12  by a bearing  22 .  
         [0024]    The slide base  30  is slidably mounted in the slide groove  12 , and has a center formed with a screw hole  31  screwed on the ball screw  21 , so that when the ball screw  21  is rotated by the power source  20 , the slide base  30  may slide on the ball screw  21  by guidance of the slide groove  12 . The slide base  30  has one side formed with two pivot ears  32  received in the connecting hole  15  of the body  10  for pivoting the clutch swing bar  40 , so that the clutch swing bar  40  may swing horizontally in the connecting hole  15  of the body  10 .  
         [0025]    The clutch swing bar  40  has a first end pivotally mounted between the two pivot ears  32  of the slide base  30 , and a second end having a first side formed with a protruded stop portion  41  and a second side formed with a protruded guide portion  42 . The stop portion  41  of the clutch swing bar  40  has a free end formed with a circular nose end. The guide portion  42  of the clutch swing bar  40  has a free end pivoted with a roller  420 .  
         [0026]    The slide base  30  is formed with a longitudinally extended cutout  33  located between the two pivot ears  32 . A guide rod  34  has a first end inserted into the cutout  33  of the slide base  30 , and a second end screwed on a side face of the body  10 .  
         [0027]    The breaking cylinder  50  is slidably mounted in the guide groove  13  and the through hole  14  of the body  10 , and has a closed first end provided with a striking needle  51 , and a second end having an outer periphery formed with an annular locking flange  52  that may be rested and locked on a shoulder formed between the guide groove  13  and the through hole  14  of the body  10 . The breaking cylinder  50  has an inner portion formed with a chamber  53  (see FIG. 2) for receiving the strong spring  60 . A support plate  100  is secured on one side of the body  10 , so that the strong spring  60  may be compressed between the support plate  100  and the wall of the chamber  53  of the breaking cylinder  50 .  
         [0028]    As shown in FIG. 2, when the breaking cylinder  50  is mounted in the through hole  14  of the body  10 , the stop portion  41  of the clutch swing bar  40  is rested on the end face of the breaking cylinder  50 , and the roller  420  of the guide portion  42  of the clutch swing bar  40  is rested on the guide rod  34  of the slide base  30 .  
         [0029]    In use, referring to FIGS. 2 and 3 with reference to FIG. 1, the through hole  14  of the body  10  is directed toward the reinforced glass to be hit. The ball screw  21  may be driven and rotated by the power source  20 , so that the slide base  30  may be driven by the ball screw  21  to slide in the guide groove  12  toward the power source  20 , and the clutch swing bar  40  may be moved with the slide base  20  to move toward the power source  20 , whereby the roller  420  of the guide portion  42  of the clutch swing bar  40  may slide along the guide rod  34  of the slide base  30 , and the stop portion  41  of the clutch swing bar  40  may push the breaking cylinder  50  to move toward the strong spring  60 , thereby compressing the strong spring  60  as shown in FIG. 3.  
         [0030]    When the slide base  30  is moved to a predetermined position, the guide portion  42  of the clutch swing bar  40  is moved outward from the guide rod  34  of the slide base  30 , so that the guide portion  42  of the clutch swing bar  40  is located at a suspending state as shown in FIG. 3, whereby the force of the stop portion  41  of the clutch swing bar  40  applied on the breaking cylinder  50  is removed, so that the restoring force of the strong spring  60  applied on the breaking cylinder  50  may force the clutch swing bar  40  to pivot about the pivot ears  32 , thereby detaching the breaking cylinder  50  from the stop portion  41  of the clutch swing bar  40 , whereby the breaking cylinder  50  may be forced to move outward from the through hole  14  of the body  10  by the restoring force of the strong spring  60 , so that the striking needle  51  of the breaking cylinder  50  may be pushed to instantaneously strike and break the reinforced glass quickly and strongly, and the broken reinforced glass may be hit by the end face of the breaking cylinder  50 , thereby forming a larger opening to facilitate escape of the people.  
         [0031]    Although the invention has been explained in relation to its preferred embodiment as mentioned above, it is to be understood that many other possible modifications and variations can be made without departing from the scope of the present invention. It is, therefore, contemplated that the appended claim or claims will cover such modifications and variations that fall within the true scope of the invention.