Patent Publication Number: US-2003228831-A1

Title: Structure improvement of electric grinder

Description:
BACKGROUND OF THE INVENTION  
       [0001] (1) Field of the Invention  
       [0002] The present invention relates to a structure improvement of electric grinder, and more particularly to the structure improvement of an electric grinder whose components can be quickly assembled and disassembled.  
       [0003] (2) Description of the Prior Art  
       [0004] The schematic view of a prior electric grinder  10  (as shown in FIG. 1), the connection between the motion element  11  and the electric grinder  10  is through the locking between an internal thread  101  and an external thread  111 . It is quite inconvenient to replace, especially the electric grinder  10  used in the beauty industry, one machine usually is used on one single person and it requires ultraviolet disinfecting box to disinfect before being used again. Therefore it requires constant replacing of the electric grinder  10  and it wastes a lot of time on assembling and disassembling if utilizes the stated thread locking method.  
       SUMMARY OF THE INVENTION  
       [0005] Because of the stated shortcomings of the prior electric grinder, after years of experience in the industry and a sequence of continuous observations, researches, and developments, I propose the present invention, a structure improvement of electric grinder, as a possible solution, which after a series of experiments has found to effectively improve the existing shortcomings of the prior art and posses practical functions.  
       [0006] The primary objective of the present invention is to provide a structure improvement of electric grinder that can prevent the transmission element deviated from the center and is constituted of components that can be quickly assembled and disassembled. 
     
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
     [0007] The present invention will now be specified with reference to its preferred embodiment illustrated in the drawings, in which  
     [0008]FIG. 1 is a schematic view of a prior art.  
     [0009]FIG. 2 is a schematic 3-dimensional explosion view of the present invention.  
     [0010]FIG. 3 is a schematic assembled view of the present invention.  
     [0011]FIG. 4 is a schematic assembled cross-section view of the present invention.  
     [0012]FIG. 5 is a schematic view of the motion element disconnected with the electric grinder in accordance with the present invention.  
     [0013]FIG. 6 is a schematic view of the motion element connected with the electric grinder in accordance with the present invention. 
    
    
     DESCRIPTION OF THE PREFERRED EMBODIMENT  
     [0014] The invention disclosed herein is directed to the structure improvement of electric grinder. In the following description, numerous details are set forth in order to provide a thorough understanding of the present invention. It will be appreciated by one skilled in the art that variations of these specific details are possible while still achieving the results of the present invention. In other instance, well-known components are not described in detail in order not to unnecessarily obscure the present invention.  
     [0015] First, please refer to FIG. 2 to FIG. 4. One preferred embodiment in accordance with the present invention mainly includes:  
     [0016] An outer casing  20 , which includes an internal thread section  21  to connect with a screw socket  80  while the inside includes a front protruding ring  22  and a rear protruding ring  23  to be contacted with the front and rear shafts  31 ,  32  of the control element  30 ;  
     [0017] A control element  30 , whose front end includes a front shaft  31  while the rear end includes a rear shaft  32 , and the top includes an accommodating hole  33  while the inside includes a stopping ring  34 , wherein a transmission shaft  50  is inserted into the accommodating hole  33  and the bottom of the control element  30  includes a fixing socket  36  connected with the accommodating inner space  35  to accommodate the front section of the transmission element  60 , while the fix socket  36  with a position protrude ring  361  is inserted onto the end of control element  30 ;  
     [0018] A position spring  40 , formed on the inside of the control element  30 ;  
     [0019] A transmission shaft  50 , whose front end includes several lengthwise cutout slots  51  and several petal-like clip pieces  52  to hold bit A, while the rear section is inserted into the accommodating hole  33  of the control element  30  and a position spring  40  is inserted onto the shaft and inside the rear section includes an internal thread section  53  to be screw connected with the transmission element  60 ;  
     [0020] A transmission element  60 , whose front section includes a bolt  61  to be screw connected with the transmission shaft  50 , and a protrude ring  62  at the middle section, while the rear section includes a insertion section  63 , wherein the insertion section  63  is connected with the transmission wire of the motion element and the insertion section  63  further includes a shaft  64  to prevent the eccentric movement of the transmission element  60 ;  
     [0021] A connecting element  70 , which includes a stud  71  with an external thread section  72  to be screw connected with a revolving socket  80  and the front end of the stud  71  includes a groove  73  to allow a C-shape ring  74  to set in, while the connecting element  70  includes a hole  75 , wherein the hole  75  is used to accommodate a spring  76  and a tenon bead  77  so that the tenon bead  77  protrudes over, and at the rear end of the connecting element  70  includes a indented groove  78  and more than one round beads  783  so after placing the round bead  782  the motion element can be connected by a resilient element  781 ;  
     [0022] A revolving socket  80 , whose front section includes an external thread section  81  to be screw locked with the outer casing  20  while the rear section includes an internal thread  82  to be connected with the external thread section  72  of the connecting element  70 , and also includes a hole  83  at the rear end, wherein the diameter of hole  83  is smaller than the tenon bead  77 ;  
     [0023] A motion element  9 , whose main component is a hollow soft tube  93  which further includes a transmission wire  92 , and the top section of the motion element  9  includes a connecting section  91  to be inserted into the inner trough  79  of the connecting element  70  and be stopped and positioned by the round bead  782  of the indented groove  78 .  
     [0024] Please refer to FIG. 5 and FIG. 6. When disassembling the electric grinder, it only needs to pull out the motion element  9 . Since the connection between the electric grinder and the motion element  9  is through the stop action provided by the round bead  782  of the connecting section  70  of the electric grinder, the motion element  9  can be separated from the electric grinder as long as the pulling force is larger than the stopping force provided by the round bead  782 . On the other hand, the motion element  9  can be connected with the electric grinder by simply inserting the motion element  9  into the connecting section  70  of the electric grinder.  
     [0025] While the present invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be without departing from the spirit and scope of the present invention.