Patent Publication Number: US-10329797-B2

Title: Lock set transmission mechanism

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to a lock set transmission mechanism, and more particularly, to a lock set transmission mechanism allowing a lock core to cooperate with different transmission rods. 
     2. Description of the Prior Art 
     Generally, a lock core of a lock set is connected to a latch through a transmission rod. When the lock core of the lock set is driven by a key to rotate, the lock core drives the latch to move between an unlocked position and a locked position through the transmission rod, in order to perform unlocking or locking operation. However, in different types of lock sets, the transmission rods have different structures. The lock core is required to be arranged with a corresponding driving structure to drive the transmission rod to rotate. The lock core of the lock set of the prior art cannot cooperate with different transmission rods. Therefore, the lock set of the prior art has less design flexibility and production efficiency. 
     SUMMARY OF THE INVENTION 
     The present invention provides a lock set transmission mechanism, comprising a lock case, a lock core, a transmission rod, a supporting member and a fixing member. The lock core is arranged on the lock case and configured to be driven by a key to rotate relative to the lock case. The transmission rod has a first end and a second end. The first end of the transmission rod is configured to be connected to a latch. The supporting member comprises a first supporting ring sleeved on the lock core, a second supporting ring configured to support the second end of the transmission rod, and at least one supporting rib connected to the first supporting ring and the second supporting ring. The fixing member is configured to fix the supporting member to the lock core. Wherein, when the lock core is rotated relative to the lock case, the transmission rod is driven by the lock core to rotate, in order to move the latch. 
     In one embodiment of the present invention, a groove is formed on the lock core, the fixing member is a C-shaped ring engaged with the groove and abutting against the first supporting ring. 
     In one embodiment of the present invention, at least one recessed structure is formed on the lock core, the at least one supporting rib is accommodated in the at least one recessed structure. 
     In one embodiment of the present invention, a driving structure is formed on the second supporting ring of the supporting member, and configured to drive the transmission rod to synchronously rotate with the lock core. 
     In one embodiment of the present invention, a driving structure is formed on the second supporting ring of the supporting member, and configured to drive the transmission rod to rotate after the lock core is rotated relative to the lock case by a predetermined angle. 
     In one embodiment of the present invention, a pushed structure is formed on the second end of the transmission rod, a pushing structure is formed on the lock core; when the lock core is rotated relative to the lock case, the pushing structure of the lock core abuts against the pushed structure of the transmission rod to further drive the transmission rod to rotate. 
     In one embodiment of the present invention, the lock set transmission mechanism further comprises a washer arranged on the lock core, wherein a pushed structure is formed on the second end of the transmission rod, a pushing structure is formed on the washer; when the lock core is rotated relative to the lock case, the pushing structure of the washer abuts against the pushed structure of the transmission rod to further drive the transmission rod to rotate. 
     In one embodiment of the present invention, a pushed structure is formed on the second end of the transmission rod, a pushing structure is formed on the supporting member; when the lock core is rotated relative to the lock case, the pushing structure of the supporting member abuts against the pushed structure of the transmission rod to further drive the transmission rod to rotate. 
     In one embodiment of the present invention, the pushing structure of the supporting member is extended from the second supporting ring to be inserted into the lock core. 
     In one embodiment of the present invention, the pushing structure of the supporting member is extended from the second supporting ring, and orthogonal projection of the pushing structure on the lock core overlaps orthogonal projection of the second supporting ring on the lock core. 
     These and other objectives of the present invention will no doubt become obvious to those of ordinary skill in the art after reading the following detailed description of the preferred embodiment that is illustrated in the various figures and drawings. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a diagram showing a first embodiment of a lock set transmission mechanism of the present invention. 
         FIG. 2  is an exploded view of the first embodiment of the lock set transmission mechanism of the present invention. 
         FIG. 3  is a diagram showing a second embodiment of the lock set transmission mechanism of the present invention. 
         FIG. 4  is an exploded view of the second embodiment of the lock set transmission mechanism of the present invention. 
         FIG. 5  is a diagram showing a third embodiment of the lock set transmission mechanism of the present invention. 
         FIG. 6  is an exploded view of the third embodiment of the lock set transmission mechanism of the present invention. 
         FIG. 7  is a diagram showing a fourth embodiment of the lock set transmission mechanism of the present invention. 
         FIG. 8  is an exploded view of the fourth embodiment of the lock set transmission mechanism of the present invention. 
         FIG. 9  is a cross-sectional view of the fourth embodiment of the lock set transmission mechanism of the present invention. 
         FIG. 10  is a diagram showing a fifth embodiment of the lock set transmission mechanism of the present invention. 
         FIG. 11  is an exploded view of the fifth embodiment of the lock set transmission mechanism of the present invention. 
         FIG. 12  is a cross-sectional view of the fifth embodiment of the lock set transmission mechanism of the present invention. 
         FIG. 13  is a diagram showing a sixth embodiment of the lock set transmission mechanism of the present invention. 
         FIG. 14  is an exploded view of the sixth embodiment of the lock set transmission mechanism of the present invention. 
         FIG. 15  is a diagram showing a supporting member of  FIG. 14  in another angle. 
         FIG. 16  is a cross-sectional view of the sixth embodiment of the lock set transmission mechanism of the present invention. 
         FIG. 17  is a diagram showing a seventh embodiment of the lock set transmission mechanism of the present invention. 
         FIG. 18  is an exploded view of the seventh embodiment of the lock set transmission mechanism of the present invention. 
         FIG. 19  is a diagram showing the supporting member of  FIG. 18  in another angle. 
         FIG. 20  is a cross-sectional view of the seventh embodiment of the lock set transmission mechanism of the present invention. 
     
    
    
     DETAILED DESCRIPTION 
     Please refer to  FIG. 1  and  FIG. 2 .  FIG. 1  is a diagram showing a first embodiment of a lock set transmission mechanism of the present invention.  FIG. 2  is an exploded view of the first embodiment of the lock set transmission mechanism of the present invention. As shown in figures, the first embodiment  100  of the lock set transmission mechanism of the present invention comprises a lock case  110 , a lock core  120 , a transmission rod  130 , a supporting member  140  and a fixing member  150 . The lock core  120  is arranged on the lock case  110 . A first end  120   a  of the lock core  120  is provided with a key hole (not shown in figures). When a corresponding key is inserted into the key hole of the first end  120   a  of the lock core  120 , the lock core  120  can be driven by the key to rotate relative to the lock case  110 . In the present embodiment, the transmission rod  130  is applicable to a C-type lock (cylindrical lock). A first end  130   a  of the transmission rod  130  is configured to be connected to a latch (not shown in figures). When the transmission rod  130  is rotated, the transmission rod  130  can drive the latch to move between an unlocked position and a locked position, in order to perform unlocking or locking operation. The supporting member  140  comprises a first supporting ring  142 , a second supporting ring  144  and at least one supporting rib  146 . The first supporting ring  142  is sleeved on a second end  120   b  of the lock core  120 . The second supporting ring  144  is configured to support a second end  130   b  of the transmission rod  130 . In the present embodiment, the supporting member  140  comprises two supporting ribs  146  connected to the first supporting ring  142  and the second supporting ring  144 . The fixing member  150  is configured to fix the supporting member  140  to the second end  120   b  of the lock core  120 . In the present embodiment, a groove  122  is formed on the lock core  120 , and the fixing member  150  is a C-shaped ring configured to be engaged in the groove  122 . When the fixing member  150  is engaged in the groove  122 , the fixing member  150  abuts against the first supporting ring  142  for fixing the supporting member  140  to the second end  120   b  of the lock core  120 . 
     In addition, recessed structures  124  are formed on the lock core  120 . Each of the supporting ribs  146  can be accommodated in the corresponding recessed structure  124 . As such, when the lock core  120  is rotated relative to the lock case  110 , the lock core  120  can drive the supporting member  140  to synchronously rotate through the supporting ribs  146 . The number of the recessed structures  124  and the number of the supporting ribs  146  can be changed according to requirements. Moreover, a driving structure  148  is formed on the second supporting ring  144  of the supporting member  140  for driving the transmission rod  130  to synchronously rotate with the supporting member  140 . In other words, when the lock core  120  is rotated relative to the lock case  110 , the transmission rod  130  is synchronously rotated with the lock core  120 , in order to move the latch. 
     Please refer to  FIG. 3  and  FIG. 4 .  FIG. 3  is a diagram showing a second embodiment of the lock set transmission mechanism of the present invention.  FIG. 4  is an exploded view of the second embodiment of the lock set transmission mechanism of the present invention. As shown in figures, the second embodiment  200  of the lock set transmission mechanism of the present invention comprises a lock case  210 , a lock core  220 , a transmission rod  230 , a supporting member  240  and a fixing member  250 . The lock case  210 , the lock core  220 , and the fixing member  250  of the second embodiment  200  of the lock set transmission mechanism of the present invention are similar to the lock case  110 , the lock core  120 , and the fixing member  150  of the first embodiment  100  of the lock set transmission mechanism of the present invention. Therefore, no further illustration is provided. In the present embodiment, the transmission rod  230  is applicable to a T-type lock (knob lock). Similarly, the supporting member  240  can be synchronously rotated with the lock core  220 . In addition, a driving structure  248  is formed on a second supporting ring  244  of the supporting member  240  for driving the transmission rod  230  to rotate after the supporting member  240  is rotated relative to the transmission rod  230  by a predetermined angle (such as being rotated by 180 degrees counterclockwise). In other words, after the lock core  220  is rotated relative to the lock case  210  by the predetermined angle, the driving structure  248  of the supporting member  240  is configured to drive the transmission rod  230  to rotate, in order to move the latch. 
     Please refer to  FIG. 5  and  FIG. 6 .  FIG. 5  is a diagram showing a third embodiment of the lock set transmission mechanism of the present invention.  FIG. 6  is an exploded view of the third embodiment of the lock set transmission mechanism of the present invention. As shown in figures, the third embodiment  300  of the lock set transmission mechanism of the present invention comprises a lock case  310 , a lock core  320 , a transmission rod  330 , a supporting member  340  and a fixing member  350 . The lock case  310 , the lock core  320 , and the fixing member  350  of the third embodiment  300  of the lock set transmission mechanism of the present invention are similar to the lock case  110 , the lock core  120 , and the fixing member  150  of the first embodiment  100  of the lock set transmission mechanism of the present invention. Therefore, no further illustration is provided. In the present embodiment, the transmission rod  330  is applicable to an L-type lock (lever lock). Similarly, the supporting member  340  can be synchronously rotated with the lock core  320 . In addition, a driving structure  348  is formed on a second supporting ring  344  of the supporting member  340  for driving the transmission rod  330  to rotate after the supporting member  340  is rotated relative to the transmission rod  330  by a predetermined angle (such as being rotated by 180 degrees clockwise). In other words, after the lock core  320  is rotated relative to the lock case  310  by the predetermined angle, the driving structure  348  of the supporting member  340  is configured to drive the transmission rod  330  to rotate, in order to move the latch. 
     Please refer to  FIG. 7  to  FIG. 9 .  FIG. 7  is a diagram showing a fourth embodiment of the lock set transmission mechanism of the present invention.  FIG. 8  is an exploded view of the fourth embodiment of the lock set transmission mechanism of the present invention.  FIG. 9  is a cross-sectional view of the fourth embodiment of the lock set transmission mechanism of the present invention. As shown in figures, the fourth embodiment  400  of the lock set transmission mechanism of the present invention comprises a lock case  410 , a lock core  420 , a transmission rod  430 , a supporting member  440 , a fixing member  450  and a washer  460 . The lock case  410 , the lock core  420 , and the fixing member  450  of the fourth embodiment  400  of the lock set transmission mechanism of the present invention are similar to the lock case  110 , the lock core  120 , and the fixing member  150  of the first embodiment  100  of the lock set transmission mechanism of the present invention. Therefore, no further illustration is provided. In the present embodiment, the transmission rod  430  is applicable to a D-type lock (deadbolt lock). A first end  430   a  of the transmission rod  430  is configured to be connected to a latch (no shown in figures), and a pushed structure  432  is formed on a second end  430   b  of the transmission rod  430 . Similarly, the lock core  420  can drive the supporting member  440  to synchronously rotate through supporting ribs  446 . In addition, a pushing structure  462  is formed on the washer  460 , which is configured to be synchronously rotated with the lock core  420 . After the lock core  420  is rotated relative to the lock case  410  by a predetermined angle (such as 90 degrees), the pushing structure  462  of the washer  460  abuts against the pushed structure  432  of the transmission rod  430 , in order to push the transmission rod  430  to rotate. In other words, after the lock core  420  is rotated relative to the lock case  410  by the predetermined angle, the pushing structure  462  of the pad  460  is configured to drive the transmission rod  430  to rotate, in order to further move the latch. 
     Please refer to  FIG. 10  to  FIG. 12 .  FIG. 10  is a diagram showing a fifth embodiment of the lock set transmission mechanism of the present invention.  FIG. 11  is an exploded view of the fifth embodiment of the lock set transmission mechanism of the present invention.  FIG. 12  is a cross-sectional view of the fifth embodiment of the lock set transmission mechanism of the present invention. As shown in figures, the fifth embodiment  500  of the lock set transmission mechanism of the present invention comprises a lock case  510 , a lock core  520 , a transmission rod  530 , a supporting member  540  and a fixing member  550 . The lock case  510 , the transmission rod  530 , the supporting member  540  and the fixing member  550  of the fifth embodiment  500  of the lock set transmission mechanism of the present invention are similar to the lock case  410 , the transmission rod  430 , the supporting member  440  and the fixing member  450  of the fourth embodiment  400  of the lock set transmission mechanism of the present invention. Therefore, no further illustration is provided. In the present embodiment, the lock core  520  is formed with a pushing structure  521  protruded from a second end of the lock core  520 . After the lock core  520  is rotated relative to the lock case  510  by a predetermined angle (such as 90 degrees), the pushing structure  521  of the lock core  520  abuts against a pushed structure  532  of the transmission rod  530 , in order to push the transmission rod  530  to rotate. In other words, after the lock core  520  is rotated relative to the lock case  510  by the predetermined angle, the pushing structure  521  of the lock core  520  is configured to drive the transmission rod  530  to rotate, in order to further move the latch. 
     Please refer to  FIG. 13  to  FIG. 16 .  FIG. 13  is a diagram showing a sixth embodiment of the lock set transmission mechanism of the present invention.  FIG. 14  is an exploded view of the sixth embodiment of the lock set transmission mechanism of the present invention.  FIG. 15  is a diagram showing the supporting member of  FIG. 14  in another angle.  FIG. 16  is a cross-sectional view of the sixth embodiment of the lock set transmission mechanism of the present invention. As shown in figures, the sixth embodiment  600  of the lock set transmission mechanism of the present invention comprises a lock case  610 , a lock core  620 , a transmission rod  630 , a supporting member  640  and a fixing member  650 . The lock case  610 , the transmission rod  630  and the fixing member  650  of the sixth embodiment  600  of the lock set transmission mechanism of the present invention are similar to the lock case  410 , the transmission rod  430  and the fixing member  450  of the fourth embodiment  400  of the lock set transmission mechanism of the present invention. Therefore, no further illustration is provided. In the present embodiment, the supporting member  640  is formed with a pushing structure  641  extended from a second supporting ring  644 . Orthogonal projection of the pushing structure  641  on the lock core  620  overlaps orthogonal projection of the second supporting ring  644  on the lock core  620 . After the lock core  620  is rotated relative to the lock case  610  by a predetermined angle (such as 90 degrees), the pushing structure  641  of the supporting member  640  abuts against a pushed structure  632  of the transmission rod  630 , in order to push the transmission rod  630  to rotate. In other words, after the lock core  620  is rotated relative to the lock case  610  by the predetermined angle, the pushing structure  641  of the supporting member  640  is configured to drive the transmission rod  630  to rotate, in order to further move the latch. 
     Please refer to  FIG. 17  to  FIG. 20 .  FIG. 17  is a diagram showing a seventh embodiment of the lock set transmission mechanism of the present invention.  FIG. 18  is an exploded view of the seventh embodiment of the lock set transmission mechanism of the present invention.  FIG. 19  is a diagram showing the supporting member of  FIG. 18  in another angle.  FIG. 20  is a cross-sectional view of the seventh embodiment of the lock set transmission mechanism of the present invention. As shown in figures, the seventh embodiment  700  of the lock set transmission mechanism of the present invention comprises a lock case  710 , a lock core  720 , a transmission rod  730 , a supporting member  740  and a fixing member  750 . The lock case  710 , the transmission rod  730  and the fixing member  750  of the seventh embodiment  700  of the lock set transmission mechanism of the present invention are similar to the lock case  410 , the transmission rod  430  and the fixing member  450  of the fourth embodiment  400  of the lock set transmission mechanism of the present invention. Therefore, no further illustration is provided. In the present embodiment, the supporting member  740  is formed with a pushing structure  741  extended from a second supporting ring  744  and inserted into the lock core  720 . After the lock core  720  is rotated relative to the lock case  710  by a predetermined angle (such as 90 degrees), the pushing structure  741  of the supporting member  740  abuts against a pushed structure  732  of the transmission rod  730 , in order to drive the transmission rod  730  to rotate. In other words, after the lock core  720  is rotated relative to the lock case  710  by the predetermined angle, the pushing structure  741  of the supporting member  740  is configured to drive the transmission rod  730  to rotate, in order to further move the latch. 
     In summary, in the first embodiment to the fourth embodiment of the lock set transmission mechanism of the present invention, the same lock core can drive the transmission rods of different types of lock sets through the supporting member or the washer. In addition, in the fourth embodiment to the seventh embodiment of the lock set transmission mechanism of the present invention, the transmission rods of the same type of the lock sets can be driven by different lock cores through the supporting member or the washer. 
     In contrast to the prior art, the lock core of the lock set transmission mechanism of the present invention can cooperate with different transmission rods through the corresponding supporting members, in order to form different types of lock sets. Moreover, the transmission rods of the same type of lock sets can cooperate with different lock cores through the corresponding supporting members. Therefore, the lock set transmission mechanism of the present invention has greater design flexibility and production efficiency. 
     Those skilled in the art will readily observe that numerous modifications and alterations of the device and method may be made while retaining the teachings of the invention. Accordingly, the above disclosure should be construed as limited only by the metes and bounds of the appended claims.