Patent Publication Number: US-10772393-B1

Title: Wearable device

Description:
FIELD 
     The subject matter herein generally relates to wearable devices, and more particularly to a wearable device having a connection structure. 
     BACKGROUND 
     Smart wearable devices, such as smart watches, bracelets, glasses, and necklaces, are becoming more and more popular. The existing smart necklaces in the related art include a lanyard detachably coupled to a necklace body. The lanyard is wrapped around a user&#39;s neck, and the necklace body may be used while walking or running. However, the main body of the smart necklace is prone to rotate relative to the lanyard when the main body is not held in place. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Implementations of the present disclosure will now be described, by way of embodiments, with reference to the attached figures. 
         FIG. 1  is an assembled, isometric view of an embodiment of a wearable device including a connection structure. 
         FIG. 2  is an exploded, isometric view of the wearable device in  FIG. 1 . 
         FIG. 3  is a partial exploded view of a fastening assembly of the connection structure. 
         FIG. 4  is a cross-sectional view of the wearable device taken along line IV-IV in  FIG. 1 . 
     
    
    
     DETAILED DESCRIPTION 
     It will be appreciated that for simplicity and clarity of illustration, where appropriate, reference numerals have been repeated among the different figures to indicate corresponding or analogous elements. Additionally, numerous specific details are set forth in order to provide a thorough understanding of the embodiments described herein. However, it will be understood by those of ordinary skill in the art that the embodiments described herein can be practiced without these specific details. In other instances, methods, procedures and components have not been described in detail so as not to obscure the related relevant feature being described. The drawings are not necessarily to scale and the proportions of certain parts may be exaggerated to better illustrate details and features. The description is not to be considered as limiting the scope of the embodiments described herein. 
     Several definitions that apply throughout this disclosure will now be presented. 
     The term “coupled” is defined as connected, whether directly or indirectly through intervening components, and is not necessarily limited to physical connections. The connection can be such that the objects are permanently connected or releasably connected. The term “substantially” is defined to be essentially conforming to the particular dimension, shape, or other word that “substantially” modifies, such that the component need not be exact. For example, “substantially cylindrical” means that the object resembles a cylinder, but can have one or more deviations from a true cylinder. The term “comprising” means “including, but not necessarily limited to”; it specifically indicates open-ended inclusion or membership in a so-described combination, group, series and the like. 
       FIG. 1  shows an embodiment of a wearable device  200  that includes a connection structure  100 . 
     Referring to  FIG. 2 , the connection structure  100  includes a main body  10 , a fastening assembly  20 , a pressing member  30 , and a movable piece  40 . The main body  10  includes a fastening groove  11 . The fastening assembly  20  is rotationally mounted in the fastening groove  11  of the main body  10 . The fastening assembly  20  includes a first end portion  21  and a second end portion  22 . The first end portion  21  and the second end portion  22  are respectively opposite ends of the fastening assembly  20 . A latching portion  23  protruding from the first end portion  21 . The pressing member  30  is located on the second end portion  22 . One end of the movable piece  40  is rotationally coupled to the second end portion  22  on a side of the fastening assembly  20  facing away from the latching portion  23 . The movable piece  40  extends beyond the second end portion  22 . 
     The wearable device  200  further includes a snap portion  210 , a device main body  220 , and a connecting member  230  configured to snap-fit with the connection structure  100 . The snap portion  210  has a substantially T-shaped cross-section and protrudes from one side of the device main body  220 . The device main body  220  is snap-fitted with the latching portion  23  of the connection structure  100  by the snap portion  210  on one end of the main body  10 . The connecting member  230  is fixedly coupled to a second end of the main body  10  away from the device main body  220 . In one embodiment, the connecting member  230  is a connecting cord which can be worn on the neck of a user. 
     In other embodiments, the snap portion  210  can be a recess, and the latching portion  23  of the fastening assembly  20  can be engaged in the snap portion  210 . 
     The fastening assembly  20  is configured to rotate in the fastening groove  11 , so that the first end portion  21  of the fastening assembly  20  rotates away from the snap portion  210  to disengage the latching portion  23  from the snap portion  210 . 
     The main body  10  is substantially cylindrical. The fastening groove  11  has a substantially rectangular cross-section and extends from one end of the main body  10  to another end of the main body  10  along an axis of the main body  10 . One end of the fastening groove  11  penetrates an end surface of the main body  10 . A blocking portion  12  is located in the fastening groove  11 . The blocking portion  12  is configured to limit movement of the latching portion  23  in the fastening groove  11 . 
     In other embodiments, the fastening groove  11  may penetrate both ends of the main body  10  along the axis of the main body  10 . 
     In other embodiments, the cross-sectional shape of the fastening groove  11  may be a triangle, a pentagon, a hexagon, or other shape, as long as the cross-sectional shape of the snap portion  210  is the same as the cross-sectional shape of the fastening groove  11  and can be fastened in the fastening groove  11 . 
     The fastening assembly  20  is substantially elongated. The latching portion  23  can be snap-fitted with the snap portion  210  to fix the device main body  220  in the fastening groove  11 . The fastening assembly  20  includes a rotating portion  24 . The rotating portion  24  is substantially lug-shaped. The number of the rotating portions  24  is two, and the two rotating portions  24  are arranged in parallel and spaced apart. The two rotating portions  24  are rotationally coupled to the main body  10  through a rotary shaft  25  inside the fastening groove  11 . The first end portion  21  and the second end portion  22  are respectively located on opposite sides of the rotating portion  24 . 
     The fastening assembly  20  further includes a limiting portion  26 . The limiting portion  26  is substantially cylindrical-shaped. The limiting portion  26  extends from the second end portion  22  and is configured to prevent the pressing member  30  from rotating. 
     In other embodiments, the limiting portion  26  can be a groove-shaped structure arranged on the second end portion  22 , and one end of the pressing member  30  is locked in the groove structure to prevent the pressing member  30  from rotating. 
     The pressing member  30  is made of an elastic material. One end of the pressing member  30  abuts against the second end portion  22  of the fastening assembly  20 , and a second end abuts against the main body  10  in the fastening groove  11 . In one embodiment, the pressing member  30  is a spring and is sleeved on the limiting portion  26 . 
     Referring to  FIGS. 1-3 , one end of the movable piece  40  is rotationally coupled to a side of the fastening assembly  20  facing away from the latching portion  23  by a pin  41 , and a second end of the movable piece  40  is configured to overlap with an end of the main body  10  adjacent to the pressing member  30 . 
     Referring to  FIG. 4 , to fasten the device main body  220  to the main body  10 , the movable piece  40  is first rotated to position both ends of the movable piece  40  above the fastening assembly  20 , the second end portion  22  of the fastening assembly  20  is pressed to fasten the snap portion  210  of the main body  220  with the latching portion  23  of the connection structure  100 , and then the movable piece  40  is rotated to overlap the second end of the movable piece  40  with the main body  10 . The second end of the movable piece  40  overlapped with the main body  10  prevents inadvertently pressing the second end portion  22  of the fastener  20  during use to disengage the device main body  220  from the connection structure  100 . The connecting member  230  is coupled to one end of the main body  10  away from the latching portion  23 . The snap portion  210  engaged between the latching portion  23  and the blocking portion  12  restrains movement of the snap portion  210 . 
     Compared with the related art, the first end portion  21  of the fastening assembly  20  can be rotated away from the snap portion  210  by pressing the second end portion  22  of the fastening assembly  20  to disengage the latching portion  23  from the snap portion  210 . Thus, the latching portion  23  is easily disengaged from the snap portion  210 , and a snap-fit coupling between the snap portion  210  and the latching portion  23  prevents the wearable device  200  from rotating during use. 
     The embodiments shown and described above are only examples. Even though numerous characteristics and advantages of the present technology have been set forth in the foregoing description, together with details of the structure and function of the present disclosure, the disclosure is illustrative only, and changes may be made in the detail, including in matters of shape, size and arrangement of the parts within the principles of the present disclosure up to, and including, the full extent established by the broad general meaning of the terms used in the claims.