Abstract:
The abstract is amended in the following for being in accordance with the substitute specification: A switch device includes a base member, a rotary mechanism and a vertical actuation mechanism. The rotary mechanism is received in the base member to move a present circular displacement while a hollow handle turning. The vertical actuation mechanism is received in the base member under the rotary mechanism to move a downward preset displacement in the vertical direction for touching button type switches underneath while the rotary mechanism moving.

Description:
FIELD OF THE INVENTION  
       [0001]     The present invention relates to a switch device and more particularly to a touch-point displacement in the vertical direction being produced after the switch device being rotationally operated.  
       BACKGROUND OF THE INVENTION  
       [0002]     The conventional rotary switch is rotationally operated by way of rotational mechanism to allow two or more disconnected electrical nodes touching to each other forming a state of close circuit. Similarly, the conventional push type switch is operated by way of being pressed to allow two or more disconnected electrical nodes touching to each other forming a state of close circuit. The preceding conventional rotary switch and push type switch are provided to perform a function of electrical nodes being able to electrically connect with each other. However, the conventional art concerning the switch does not disclose how the user rotationally operates the switch in the circumferential direction and how the switch is pressed to complete the operation of switch with a moving stroke.  
       SUMMARY OF THE INVENTION  
       [0003]     An objective of the present invention is to provide a switch, which allows the user rotationally operates the switch in the circumferential direction to result in the switch is pressed to complete the operation of switch with a moving stroke.  
         [0004]     In order to achieve the preceding objective, the switch device according to the present invention, which is rotationally operated to produce a touch-point displacement in the vertical direction, includes a base member, a rotary mechanism and a vertical actuation mechanism. The rotary mechanism is received in the base member to produce a present displacement in the circumferential direction during being rotationally operated so as to pressingly contact and move the vertical actuation mechanism. The vertical actuation mechanism is received in the base member to produce a touch-point displacement in the vertical direction after being moved with the rotary mechanism. 
     
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0005]     The detailed description and technical characteristics of the present invention are described together with the drawings as follows:  
         [0006]      FIG. 1  is an exploded perspective view of the first embodiment of a switch according to the present invention;  
         [0007]      FIG. 2  is another exploded perspective view of the first embodiment of a switch according to the present invention;  
         [0008]      FIG. 3  is a top view of the first embodiment of a switch according to the present invention illustrating part of interior thereof;  
         [0009]      FIG. 4  is a perspective view illustrating part of the internal structure of the first embodiment of a switch according to the present invention;  
         [0010]      FIG. 5  is an assembled sectional view of the first embodiment of a switch according to the present invention;  
         [0011]      FIG. 6  is an exploded perspective view of the second embodiment of a switch according to the present invention;  
         [0012]      FIG. 7  is another exploded perspective view of the second embodiment of a switch according to the present invention; and  
         [0013]      FIG. 8  is an assembled sectional view of the second embodiment of a switch according to the present invention. 
     
    
     DETAILED DESCRIPTION OF THE INVENTION  
       [0014]     Referring to  FIGS. 1 and 2 , exploded perspective views of the first embodiment of a switch according to the present invention are illustrated. The switch device  10  comprises a base member  11 , a rotary mechanism  13  and a vertical actuation mechanism  15 . The rotary mechanism  13  and the vertical actuation mechanism  15  are received in the base member  11  respectively. While in use, the user turns the rotary mechanism  13  to allow the rotary mechanism  13  moving circumferentially such that the rotary mechanism  13  can move a preset displacement. The vertical actuation mechanism  15  can be pressingly contacted with the rotary mechanism  13  during the rotary mechanism  13  moving. Thus, the vertical actuation mechanism  15  moves along with the rotary mechanism  13  to result in a touch-point displacement in the vertical direction. The rotary mechanism  13  is composed of a first ratchet wheel  131  and a second ratchet wheel  132  with a plurality of projections  1331 . When the first ratchet wheel  131  rotates, the second ratchet wheel  132  can rotates too due to the ratchet teeth on the first ratchet wheel  131  meshing with the ratchet teeth on the second ratchet wheel  132 . Hence, the projections  1331  can move circumferentially and the rotary mechanism  13  can produce the preset displacement. The vertical actuation mechanism  15  is an elastic sheet with a touch point  151  thereon and is disposed in the base member  11 . When the projections  1331  displaces along with circumferential movement to approach the elastic sheet, the contact point  151  is pressingly touched by the projections  1331  finally to occur the touch point displacement in the vertical direction. In this way, the function of touch-point displacement can be implemented by the vertical actuation mechanism  15  in practice. The elastic plate  15  can be made of metal or resilient plastic plate.  
         [0015]     In order to allow the rotary mechanism  13  being capable of moving back to the original position after moving the preset displacement, a torsion spring  17  and a coil spring  19  are provided additionally. It can be seen in  FIGS. 3 and 4  that the torsion spring  17  has the two ends thereof being fixedly joined to the second ratchet wheel  133  and the base member  11  respectively. Hence, the second ratchet wheel  133  rotates circumferentially along the inner wall surface of the base member  11  to cause the torsion spring  17  creating a resilient force. When the second ratchet wheel  133  relieves from an external force, which occurs circumferential rotation of the ratchet wheel  133 , the resilient force of the torsion spring  17  pulls the second ratchet wheel  133  back to the original position. Referring to  FIGS. 1 and 2  again, when an external fore is exerted to rotate the first ratchet wheel  131 , the first ratchet wheel  131  moves upward to press the spring  19  and the spring  19  produce a downward resilient force. Once the external force is relieved or the first ratchet wheel  131  rotates a pitch of the ratchet teeth, the resilient force of the spring  19  can pull the first ratchet wheel  131  back the original position thereof.  
         [0016]     In order to define magnitude of the preset displacement done by the rotary mechanism  13 , the second ratchet wheel  133  is added with a rotating groove  1333  and a locating rib  111 . The locating rib  111  is attached to the base member  11  and pass through the rotating groove  1333 . When the second ratchet wheel  133  rotates in the circumferential direction and along the inner wall surface of the base member  11 , the side wall of the rotating groove  1333  approaches the locating rib  111  gradually till being stopped by the side wall such that rotation of the second ratchet wheel  133  in the circumferential direction is restricted and incapable of rotating. Under this circumstance, the preset displacement can be determined as the distance between positions of the second ratchet wheel initializing the rotation and stopping the rotation.  
         [0017]     Besides, the switch device  10  further includes a cover plate  21  and an operation cylinder  23 . The cover plate  21  is used for tightly closing an upper opening of the base member  11 . The operation cylinder  23  provides a shape of “T” with the inner space thereof receiving part of the first ratchet wheel  131  and an end of the operation cylinder  23  extends outward the cover plate  21  for being turned by the user while in operation.  
         [0018]     Referring to  FIG. 5 , once the user rotates the operation cylinder  23 , the first ratchet wheel  131  is actuated to rotate and the second ratchet wheel  133  is driven by the first ratchet wheel  131 . Meanwhile, the projections  1331  move to approach the vertical actuation mechanism  15  so that the contact point  151  can be pressed by the projections  1331  to produce the contact displacement in the vertical direction. Therefore, the contact displacement in the vertical direction is utilized to correspond to press button type switches  27   b,    27   c  for performing operation of pressing the buttons.  
         [0019]     Referring to  FIGS. 6 and 7 , the second embodiment of a switch device according to the present invention is illustrated. The switch device  10  in  FIG. 6  allows the user to press down the operation cylinder  23  and a post  153  at the base member  11  can be actuated to move downward against the push type button  27   a  in addition to providing rotational mechanism to offer the user rotational operation in the circumferential direction and providing pressing down mechanism to press and move a displacement for operation the switches  27   b,    27   c.  The switch device  10  of the second embodiment further provides an outer sleeve  25  for receiving other components. Meanwhile, the base member  11  further provides a post  153  passing outward the outer sleeve  25 . When the operation cylinder  23  is pressed down directly in the vertical direction, the post  153  can be moved downward to press the push type switch  27   a.    
         [0020]     Referring to  FIG. 8 , the spring  19  in the second embodiment is different from that in the first embodiment and the difference is that the spring  19  connects with the post  153  and surrounding the post  153  and contacts with the base member  11  and the outer sleeve  25 . The spring  19  provides a function of restoring the base member  11  and various parts displacing downward with the base member  11  to the original positions thereof.  
         [0021]     While the invention has been described by way of examples and in terms of preferred embodiments, it is to be understood that the invention is not limited thereto. To the contrary, it is intended to cover various modifications and similar arrangements and procedures, and the scope of the appended claims therefore should be according to the broadest interpretation so as to encompass all such modifications and similar arrangements and procedures.