Patent Publication Number: US-10782539-B2

Title: Eyeglasses structure

Description:
FIELD OF THE PRESENT DISCLOSURE 
     The present disclosure relates to an eyeglasses structure, and more particularly to an eyeglasses structure which automatically deforms to adjust itself to the nose bridge curve of a wearer. 
     BACKGROUND OF THE PRESENT DISCLOSURE 
     In general, eyeglasses are designed with a pair of lens frames where lens are inserted and placed, and a pair of temples is provided on the outer side of the frames. In order to maintain the eyeglasses in a predetermined position on a wearer&#39;s face, nose pad arms are usually provided on the inner side of the frames to connect the nose pads, so that the eyeglasses can be worn on the sides of the nose bridge of the wearer with the aid of the nose pads, thereby avoiding the eyeglasses from falling and achieving satisfactory wearing effects. A conventional nose pad arm design generally involves folding a metal rod into an inverted U shape, with one end fixedly attached to an eyeglasses frame, and the other end connected with a nose pad. The distance between the frame and the eyes is thus maintained by the support of the nose pad arms. 
     However, since a nose pad arm is formed by folding a metal rod, which is for supporting and maintaining, first, the wearing relation between the eyeglasses and the wearer&#39;s nose bridge, and second, the contacting relation between the nose pads and the wearer&#39;s nose bridge, and since each person&#39;s nose bridge curve is different from each other, when the eyeglasses are worn for the first time, usually a satisfactory fitting relation can only be attained after multiple adjustments, which is rather troublesome and time-consuming. Further, after the eyeglasses have been worn for a period of time, the nose pads often are deformed due to external force or other factors, making them unable to abut against and suit a wearer&#39;s nose bridge properly, which in turn results in the eyeglasses sliding on the wearer&#39;s face, being tilted or out of focus. Therefore, a wearer often has to head back to an optician for nose pad adjustment, which is also troublesome and inconvenient. Also, after multiple adjustments, nose pad arms are prone to damages or even fractures, resulting in the loss of the wearability of the eyeglasses, and necessitating the replacement of nose pad arms or frames, or even the entire set of the eyeglasses. 
     In addition, because of the inelasticity of the nose pad arms and the nose pads, as the latter are made of hard colloid, when used for a long time, nose pads press deep indentation on the nose bridge skin, and therefore makes the wearer uncomfortable. Also, when the eyeglasses are hit by an external force, the nose pad arms and the nose pads directly transmit the external force borne by such to the wearer&#39;s nose bridge, which can easily cause a direct damage to the wearer&#39;s nose bridge. 
     SUMMARY OF THE PRESENT DISCLOSURE 
     In response to the above-referenced technical inadequacies, the present disclosure provides an eyeglasses structure which automatically deforms to adjust itself to the nose bridge curve of a wearer. 
     In certain aspects, the present disclosure provides an eyeglasses structure, which includes a frame body, at least one lens, a first elastic contacting member and a second elastic contacting member. The frame body has an attaching portion and a positioning portion. The at least one lens is detachably attached to the attaching portion. The first elastic contacting member includes a first engaging portion for detachably engaging the positioning portion, a first linking rod portion connected to the first engaging portion, and a first pad portion connected to the first linking rod portion. The second elastic contacting member includes a second engaging portion for detachably engaging the positioning portion, a second linking rod portion connected to the second engaging portion and a second pad portion connected to the second linking rod portion. The radial cross-sectional area of the first linking rod portion is smaller than a radial cross-sectional area of the first pad portion, so as to increase a swing angle of the first pad portion relative to the first engaging portion. The radial cross-sectional area of the second linking rod portion is smaller than a radial cross-sectional area of the second pad portion, so as to increase a swing angle of the second pad portion relative to the second engaging portion. 
     One of the beneficial effects of the present disclosure is that, through the technical features of “the first elastic contacting member includes a first engaging portion detachably fitted to and engaged with the positioning portion, a first linking rod portion connected to the first engaging portion, and a first pad portion connected to the first linking rod portion,” “the second elastic contacting member includes a second engaging portion detachably fitted to and engaged with the positioning portion, a second linking rod portion connected to the second engaging portion, and a second pad portion connected to the second linking rod portion,” “the radial cross-sectional area of the first linking rod portion is smaller than the radial cross-sectional area of the first pad portion, so as to increase the swing angle of the first pad portion relative to the first engaging portion,” and “the radial cross-sectional area of the second linking rod portion is smaller than the radial cross-sectional area of the second pad portion, so as to increase the swing angle of the second pad portion relative to the second engaging portion,” the present disclosure enables the first pad portion and the second pad portion to automatically perform angle adjustment according to a wearer&#39;s nose bridge curve, so as to achieve a good contacting relation between the nose bridge and the first pad portion and the second pad portion, reduce the pressure exerted on the nose bridge, resolve the adjustment problem arisen from the high deformability of a conventional eyeglasses nose bridge pad, and significantly increase the comfort and stability when the eyeglasses are worn on a user&#39;s nose. 
     These and other aspects of the present disclosure will become apparent from the following description of the embodiment taken in conjunction with the following drawings and their captions, although variations and modifications therein can be affected without departing from the spirit and scope of the novel concepts of the present disclosure. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The present disclosure will become more fully understood from the detailed description and the accompanying drawings, in which: 
         FIG. 1  is a perspective view of an eyeglasses structure according to a first embodiment of the present disclosure. 
         FIG. 2  is a top view of an elastic contacting member according to the first embodiment of the present disclosure. 
         FIG. 3  is a side view of an elastic contacting member according to the first embodiment of the present disclosure. 
         FIG. 4  is a cross-sectional view of a linking rod portion and a pad portion of the first embodiment of the present disclosure. 
         FIG. 5  is a side view of an eyeglasses structure according to a second embodiment of the present disclosure. 
         FIG. 6  is a side cross-sectional view of the eyeglasses structure according to the second embodiment of the present disclosure. 
         FIG. 7  is a first perspective view of an eyeglasses structure according to a third embodiment of the present disclosure. 
         FIG. 8  is a second perspective view of an eyeglasses structure according to the third embodiment of the present disclosure. 
         FIG. 9  is a side cross-sectional view of an eyeglasses structure according to a fourth embodiment of the present disclosure. 
         FIG. 10  is a side cross-sectional view of an eyeglasses structure according to a fifth embodiment of the present disclosure. 
         FIG. 11  is a side cross-sectional view of an eyeglasses structure according to a sixth embodiment of the present disclosure. 
     
    
    
     DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS 
     The present disclosure is more particularly described in the following examples that are intended as illustrative only since numerous modifications and variations therein will be apparent to those skilled in the art. Various embodiments of the present disclosure are now described in detail. Referring to the drawings, like numbers, if any, indicate like components throughout the views. As used in the description herein and throughout the claims that follow, the meaning of “a”, “an”, and “the” includes plural reference unless the context clearly dictates otherwise. Also, as used in the description herein and throughout the claims that follow, the meaning of “in” includes “in” and “on” unless the context clearly dictates otherwise. Moreover, titles or subtitles can be used in the specification for the convenience of a reader, which shall have no influence on the scope of the present disclosure. Additionally, some terms used in this specification are more specifically defined below. 
     The terms used in this specification generally have their ordinary meanings in the art, within the context of the present disclosure, and in the specific context where each term is used. Certain terms that are used to describe the present disclosure are discussed below, or elsewhere in the specification, to provide additional guidance to the practitioner regarding the description of the present disclosure. For convenience, certain terms can be highlighted, for example using italics and/or quotation marks. The use of highlighting has no influence on the scope and meaning of a term; the scope and meaning of a term is the same, in the same context, whether or not it is highlighted. It will be appreciated that the same thing can be expressed in more than one way. Consequently, alternative language and synonyms can be used for any one or more of the terms discussed herein, and no special significance is to be placed upon whether or not a term is elaborated or discussed herein. Synonyms for certain terms can be provided. A recital of one or more synonyms does not exclude the use of other synonyms. The use of examples anywhere in this specification including examples of any terms discussed herein is illustrative only, and in no way limits the scope and meaning of the present disclosure or of any exemplified term. Likewise, the present disclosure is not limited to various embodiments given in this specification. 
     Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. In the case of conflict, the present document, including any definitions given herein, will prevail. 
     While numbering terms such as “first”, “second” or “third” can be used in this disclosure to describe various components, signals or the like, the terms are for distinguishing one component from another component, or one signal from another signal only, and are not intended to, nor should they be construed to impose any other substantive descriptive limitations on the components, signals or the like. 
     First Embodiment 
     Reference is made to  FIG. 1  to  FIG. 4 , which are respectively a perspective view of the eyeglasses structure, a top view and a side view of an elastic contacting member, and a cross-sectional view of a linking rod portion and a pad portion according to a first embodiment of the present disclosure. As shown in the above-referenced figures, the first embodiment of the present disclosure provides an eyeglasses structure  1 , which includes a frame body  10 , at least one lens  11 , a first elastic contacting member  12  and a second elastic contacting member  13 . The frame body  10  has an attaching portion  100  and a positioning portion  101 . The at least one lens  11  is detachably disposed on and attached to the attaching portion  100 . The first elastic contacting member  12  includes a first engaging portion  120  detachably fitted to and engaged with the positioning portion  101 , a first linking rod portion  121  connected to the first engaging portion  120 , and a first pad portion  122  connected to the first linking rod portion  121 . The second elastic contacting  13  includes a second engaging portion  130  detachably fitted to and engaged with the positioning portion  101 , a second linking rod portion  131  connected to the second engaging portion  130 , and a second pad portion  132  connected to the second linking rod portion  131 . The radial cross-sectional area of the first linking rod portion  121  is smaller than the radial cross-sectional area of the first pad portion  122 , which increases the swing angle of the first pad portion  122  relative to the first engaging portion  120 . The radial cross-sectional area of the second linking rod portion  131  is smaller than the radial cross-sectional area of the second pad portion  132 , which increases the swing angle of the second pad portion  132  relative to the second engaging portion  130 . 
     Specifically, the eyeglasses structure  1  of the present disclosure includes the frame body  10 , at least one lens  11 , the first elastic contacting portion  12  and the second elastic contacting portion  13 . The frame body  10  can be made of metal or plastic material. The frame body  10  has the attaching portion  100  for attaching the at least one lens  11 , and the positioning portion  101  for engaging the first elastic contacting portion  12  and the second elastic contacting portion  13 . In certain embodiments, the at least one lens  11  includes a plurality of lenses attached to or engaged with the attaching portion  100 . The first elastic contacting portion  12  includes the first engaging portion  120 , the first linking rod portion  121 , and the first pad portion  122 . The first engaging portion  120  is detachably fitted to and engaged with the positioning portion  101 . One end of the first linking rod portion  121  is connected to the first engaging portion  120 , and the other end of the first linking rod portion  121  is connected to the first pad portion  122 . The radial cross-sectional area of the first linking rod portion  121  is smaller than the radial cross-sectional area of the first pad portion  122 . The second elastic contacting portion  13  includes the second engaging portion  130 , the second linking rod portion  131 , and the second pad portion  132 . The second engaging portion  130  is detachably fitted to and engaged with the positioning portion  101 . One end of the second linking rod portion  131  is connected to the second engaging portion  130 , and the other end of the second linking rod portion  131  is connected to the second pad portion  132 . The radial cross-sectional area of the second linking rod portion  131  is smaller than the radial cross-sectional area of the second pad portion  132 . In certain embodiments, at least one of the first elastic contacting member  12  and the second elastic contacting member  13  is made of thermoplastic elastomers, such as polybutadiene (butadiene rubber, BR), polyisoprene (isoprene rubber, IR), natural rubber (NR), ethylene propylene diene monomer (EPDM) rubber, butyl rubber (isobutylene isoprene rubber, IIR), polyisobutylene, polyethylene-polybutylene, amorphous polyethylene, polyether, polyester, and the like. 
     Therefore, when a user wears the eyeglasses structure  1  of the present disclosure, through the elastic property of the first elastic contacting member  12  and the second elastic contacting member  13 , the first pad portion  122  and the second pad portion  132  automatically perform angle adjustment according to the wearer&#39;s nose bridge curve, leading to a good contacting relation between the nose bridge and the first pad portion  122  and the second pad portion  132 . Also, when the first linking rod portion  121  and the second linking rod portion  131  of the eyeglasses structure  1  are deformed by external force or other factors, resulting in the first pad portion  122  and the second pad portion  132  not suiting the wearer&#39;s nose bridge properly, the wearer needs only to remove the eyeglasses structure  1  from his or her nose bridge and then wear it again, as the first pad portion  122  and the second pad portion  132  can again automatically perform angle adjustment according to the wearer&#39;s nose bridge curve, leading to a good contacting relation between his or her nose bridge and the first pad portion  122  and the second pad portion  132 . 
     Further, when the first linking rod portion  121  and the second linking rod portion  131  of the eyeglasses structure  1  are pressed by external force or other factors, the first linking rod portion  121  and the second linking rod portion  131  are bent or deformed. Since the radial cross-sectional area of the first linking rod portion  121  is smaller than the radial cross-sectional area of the first pad portion  122 , the swing angle of the first pad portion  122  relative to the first engaging portion  120  is increased. Also, as shown in  FIG. 4 , which is a cross-sectional view of the second elastic contacting member  13  overlapping the radial cross-sectional lines L 1  and L 2  in  FIG. 2 , since the radial cross-sectional area of the second linking rod portion  131  is smaller than the radial cross-sectional area of the second pad portion  132 , the swing angle of the second pad portion  132  relative to the second engaging portion  130  is increased. Therefore, through the above structural design, a bearable deformation degree of each of the first linking rod portion  121  and the second linking rod portion  131  is increased, so that the first linking rod portion  121  and the second linking rod portion  131  are not damaged or broken after a series of bending and deforming. Also, when the eyeglasses structure  1  is hit by an external force, the first linking rod portion  121  and the second linking rod portion  131  can bend or deform with the aid of their high tolerable deformation capacity, instead of directly transmitting the external force borne by such to the wearer&#39;s nose bridge, thus avoiding damage to the wearer&#39;s nose bridge. 
     Thereby, through the above-referenced structural design, the eyeglasses structure  1  of the present disclosure enables the first pad portion  122  and the second pad portion  132  to automatically perform angle adjustment according to the wearer&#39;s nose bridge curve in a rotating movement similar to that of a universal bearing, so as to achieve a good contacting relation between the nose bridge and the first pad portion  122  and the second pad portion  132 , reduce the pressure exerted on the nose bridge, resolve the adjustment problem arisen from the high deformability of a conventional eyeglasses nose pad, and significantly increase the comfort and stability when the eyeglasses are worn on a user&#39;s nose. 
     In certain embodiments, the first engaging portion  120  and the second engaging portion  130  are connected to each other and form a single member. And the single member is in an inversed V shape or an inversed U shape. That is, the first elastic contacting member  12  and the second elastic contacting member  13  of the eyeglasses structure  1  of the present disclosure can be an integrally formed single member, and can be in an inversed V shape or an inversed U shape. Therefore, through the afore-referenced structural design, when performing angle adjustment, the first pad portion  122  and the second pad portion  132  can also have linking movement through the mutual connection between the first engaging portion  120  and the second engaging portion  130 , thereby increasing the comfort and stability when the eyeglasses are worn on a user&#39;s nose. 
     In certain embodiments, each of the first elastic contacting member  12  and the second elastic contacting member  13  can be a single and independent member that is different from or the same as the other one. And the first elastic contacting member  12  and the second elastic contacting member  13  can be detachably engaged with each other through, for example, thread locking. However, the present disclosure is not limited thereto. 
     Referring again to  FIG. 2  and  FIG. 3 , in certain embodiments, the first linking rod portion  121  enables the first pad portion  122  to movably swing within a first predetermined range through the flexibility and elasticity of the first linking rod portion  121 . The second linking rod portion  131  enables the second pad portion  132  to movably swing within a second predetermined range through the flexibility and elasticity of the second linking rod portion  131 . Each of the first predetermined range and the second predetermined range covers a space in a shape of half a sphere or three fourths (¾) of a sphere. Further, through the structural design of the radial cross-sectional area of the first linking rod portion  121  being smaller than the radial cross-sectional area of the first pad portion  122 , the swing angle of the first pad portion  122  relative to the first engaging portion  120  is increased. Through the structural design of the radial cross-sectional area of the second linking rod portion  131  being smaller than the radial cross-sectional area of the second pad portion  132 , the swing angle of the second pad portion  132  relative to the second engaging portion  130  is increased. Therefore, through the elasticity of the first linking rod portion  121 , the first pad portion  122  can movably swing within a first predetermined range, for example, a swinging range covering a space in a shape of half a sphere or three fourths (¾) of a sphere. Further, through the elasticity of the second linking rod portion  131 , the second pad portion  132  can movably swing within a second predetermined range, for example, a swinging range covering a space in a shape of half a sphere or three fourths (¾) of a sphere. 
     It is further noted that the eyeglasses structure  1  of the present disclosure is not limited by the above-referenced examples. 
     Second Embodiment 
     Reference is made to  FIG. 5  and  FIG. 6 , which are respectively a side view and a side cross-sectional view of an eyeglasses structure according to a second embodiment of the present disclosure. Reference is also made to  FIG. 1  to  FIG. 4 . As shown in the above-referenced figures, the operation of certain elements of the eyeglasses structure in the present embodiment is similar to their counterparts of the eyeglasses structure in the first embodiment, which is therefore not described in detail herein. It should be noted that in this embodiment, the first engaging portion  120  has a first through hole  1200 , and the second engaging portion  130  has a second through hole  1300 . The positioning portion  101  includes a plurality of fixing pillars  101   a . The first engaging portion  120  is detachably fitted to and engaged with one of the fixing pillars  101   a  through the first through hole  1200 , and the second engaging portion  130  is detachably fitted to and engaged with another one of the fixing pillars  101   a  through the second through hole  1300 . 
     For example, the body of the first engaging portion  120  of the present disclosure further has the first through hole  1200 , the body of the second engaging portion  130  of the present disclosure further has the second through hole  1300 . The positioning portion  101  includes a plurality of fixing pillars  101   a . Therefore, through the detachable engagement between one of the fixing pillars  101   a  and the first through hole  1200 , and the detachable engagement between another one of the fixing pillars  101   a  and the second through hole  1300 , the first engaging portion  120  and the second engaging portion  130  are engaged with the positioning portion  101  of the frame body  10 . 
     It is worth noting that at least one of the inner wall of the first through hole  1200  of the first engaging portion  120  and the inner wall of the second through hole  1300  of the second engaging portion  130  is provided with at least one buckling structure (not shown in the figure), such as a protruding dot or a protruding rim, so that the first engaging portion  120  and the second engaging portion  130  can be firmly engaged with the positioning portion  101   
     In certain embodiments, one side of the first pad portion  122  is provided with at least one protrusion portion  122   a , and another side of the first pad portion  122  is provided with at least one recession portion  122   b . One side of the second pad portion  132  is provided with at least one protrusion portion  132   a , and another side of the second pad portion  132  is provided with at least one recession portion  132   b . That is, by forming at least one protrusion portion  122   a  on the first pad portion  122  and at least one protrusion portion  132   a  on the second pad portion  132 , the contacting force between the first pad portion  122  and the second pad portion  132  and a wearer&#39;s nose bridge can be increased, and the slipping of the eyeglasses structure  1  on the wearer&#39;s nose bridge, as can result from shaking, can be greatly avoided. Further, by forming at least one recession portion  122   b  on the first pad portion  122  and at least one recession portion  132   b  on the second pad portion  132 , the manufacturing costs can be reduced, and the supportability of the first pad portion  122  and the second pad portion  132  can be increased. 
     Third Embodiment 
     Reference is made to  FIG. 7  and  FIG. 8 , which are respectively a first perspective view and a second perspective view of the eyeglasses structure of a third embodiment of the present disclosure. Reference is also made to  FIG. 1  to  FIG. 6 . As shown in the above-referenced figures, the operation of certain elements of the eyeglasses structure in the present embodiment is similar to their counterparts of the eyeglasses structures in the above-referenced embodiments, which is therefore not described in detail herein. It should be noted that in this embodiment, the first elastic contacting member  12  is separated from and independent of the second elastic contacting member  13 , while the contour of the first elastic contacting member  12  can be the same as or different from the second elastic contacting member  13 . In certain embodiments, the first elastic contacting member  12  is an exact replica of the second elastic contacting member  13 . That is, each of the first elastic contacting member  12  and the second elastic contacting member  13  of the eyeglasses structure  1  of the present disclosure is an independent single element, and independently engages with the positioning portion  101 . In certain embodiments, the structure of the first elastic contacting member  12  can be the same as or different from the second elastic contacting member  13 . Therefore, through the above-referenced structural design, the eyeglasses structure  1  of the present disclosure allows a user to independently replace one of the first elastic contacting member  12  and the second elastic contacting member  13  without needing to replace both of such at the same time. 
     In certain embodiments, the first engaging portion  120  and the second engaging portion  130  can be connected to each other to be a single element. The single element formed is in a shape of inversed V or inversed U. That is, the first engaging portion  120  and the second engaging portion  130  of the eyeglasses structure  1  of the present disclosure can be an integrally formed single element in an inversed V shape or inversed U shape. Therefore, through the above-referenced structural design, when the eyeglasses structure  1  of the present disclosure performs angle adjustment, the first pad portion  122  and the second pad portion  132  can also have linking movement through the mutual connection between the first engaging portion  120  and the second engaging portion  130 , thereby increasing the comfort and stability when the eyeglasses are worn on a user&#39;s nose. 
     Fourth Embodiment 
     Reference is made to  FIG. 9 , which is a side cross-sectional view of an eyeglasses structure according to a fourth embodiment of the present disclosure. Reference is also made to  FIG. 1  to  FIG. 8 . As shown in the above-referenced figures, the operation of certain elements of the eyeglasses structure in the present embodiment is similar to their counterparts of the eyeglasses structures in the above-referenced embodiments, which is therefore not described in detail herein. It should be noted that in the present embodiment, the positioning portion  101  includes a plurality of fixing slots  1010 . Each of the fixing slots  1010  has an opening and a closed bottom opposite to the opening. The opening is formed on a surface of the positioning portion  101  facing the first elastic contacting member  12  or the second elastic contacting member  13 . The first engaging portion  120  has at least one first protruding portion  1201 . The first protruding portion  1201  is formed on and protruding away from the surface of the first engaging portion  120 . The first engaging portion  120  is detachably fitted to and engaged with a corresponding fixing slot  1010  through at least one first protruding portion  1201 . The second engaging portion  130  has at least one second protruding portion  1301 . The second protruding portion  1301  is formed on and protruding away from the surface of the second engaging portion  130 . The second engaging portion  130  is detachably fitted to and engaged with a corresponding fixing slot  1010  through at least one second protruding portion  1301 . In certain embodiments, each fixing slot  1010  is in the shape of a droplet, and each of the first protruding portion  1201  and the second protruding portion  1301  is in the shape of a mushroom. 
     In certain embodiments, as shown in  FIG. 9 , the droplet shape of the fixing slot  1011  is defined as the fixing slot  1011  having a body portion and a neck portion, and the minimal width of the projection of the neck portion on a plane substantially parallel to an axis of the fixing slot  1011  being smaller than the maximal width of the projection of the body portion on the plane and smaller than the width of the projection of the opening of the fixing slot  1011  on the plane. The axis of the fixing slot  1011  is defined by a point on a cross-section of the body portion having the maximal area among the cross-sections of the body portion (defined as the maximum cross-section of the body portion), and a point on a cross-section of the neck portion having the minimal area among the cross-sections of the neck portion (defined as the minimum cross-section of the neck portion), and both of which are substantially parallel to a plane with which the opening of the fixing slot  1011  is coplanar. One end of the neck portion defines and forms the opening of the fixing slot  1011 , and the other end of the neck portion forms another opening connected to and communicating with the body portion. One end of the body portion is connected to and communicates with the other end of the neck portion, and the other end of the body portion forms the closed bottom of the fixing slot  1011 . In certain embodiments, the axis of the fixing slot  1011  is defined by a center of the maximum cross-section of the body portion and a center of the minimum cross-section of the neck portion, and the minimal width of the projection of the neck portion on a plane where the axis of the fixing slot  1011  is located is smaller than the maximal width of the projection of the body portion on the plane and smaller than the width of the projection of the opening of the fixing slot  1011  on the plane. 
     In certain embodiments, as shown in  FIG. 9 , the mushroom shape of at least one of the first protruding portion  1201  and the second protruding portion  1301  is defined as at least one of the first protruding portion  1201  and the second protruding portion  1301  having a head portion and a neck portion, and the minimal width of the projection of the neck portion on a plane substantially parallel to an axis of a corresponding first protruding portion  1201  or a corresponding second protruding portion  1301  being smaller than the maximal width of the projection of the head portion on the plane. The axis of the corresponding first protruding portion  1201  or the corresponding second protruding portion  1301  is defined by a point on a cross-section of the head portion having the maximal area among the cross-sections of the head portion (defined as the maximum cross-section of the head portion) and a point on a cross-section of the neck portion having the minimal area among the cross-sections of the neck portion (defined as the minimum cross-section of the neck portion), and both of such are substantially parallel to the surface of the corresponding first engaging portion  120  or the corresponding second engaging portion  130  from which the corresponding first protruding portion  1201  or the corresponding second protruding portion  1301  is protruding. One end of the neck portion is connected to the head portion, and the other end of the neck portion is connected to the surface of the corresponding first engaging portion  120  or the second engaging portion  130  from which the first protruding portion  1201  or the second protruding portion  1301  is protruding. In certain embodiments, the axis of at least one of the first protruding portion  1201  and the second protruding portion  1301  is defined by a center of the maximum cross-section of the head portion and a center of a minimum cross-section of the neck portion, and the minimal width of the projection of the neck portion on a plane where the axis of the at least one of the first protruding portion  1201  and the second protruding portion  1301  is located is smaller than the maximal width of the projection of the head portion on the plane. In certain embodiments, the minimal width of the neck portion is smaller than a width of the surface the neck portion is protruding from. However, the present disclosure is not limited thereto. 
     For example, the positioning portion  101  of the eyeglasses structure  1  of the present disclosure includes a plurality of fixing slots  1010 . The first engaging portion  120  correspondingly has at least one first protruding portion  1201 . The second engaging portion  130  correspondingly has at least one second protruding portion  1301 . It is noted that in the present embodiment, the number of each of the first protruding portion  1201  and the second protruding portion  1301  being one is for illustrative purpose only, and the present disclosure is not limited thereto. In practical usage, each of the number of the first protruding portion  1201  and the second protruding portion  1301  can be two or more than two. Therefore, when the eyeglasses structure  1  undergoes assembling, the first engaging portion  120  can be engaged with the corresponding fixing slot(s)  1010  in a snap-fit manner through at least one first protruding portion  1201 , so as to be engaged with the positioning portion  101 . Also, the second engaging portion  130  can be engaged with the corresponding fixing slot(s)  1010  in a snap-fit manner through at least one second protruding portion  1301 , so as to be engaged with the positioning portion  101 . In addition, the eyeglass structure  1  of the present disclosure can further have a design in which the fixing slot(s)  1010  is in a droplet shape, and at least one of the first protruding portion(s)  1201  and the second protruding portion(s)  1301  is in a mushroom shape, so that the first engaging portion  120  and the second engaging portion  130  can be firmly engaged with the positioning portion  101  without falling off therefrom easily. 
     In certain embodiments, the positioning portion  101  is made of elastic material. Therefore, even after a user removes the first engaging portion  120  or the second engaging portion  130  from the positioning portion  101 , the first protruding portion  1201  and the second protruding portion  1301  retain their original shapes, so that the user can again fit the first engaging portion  120  or the second engaging portion  130  into the positioning portion  101  in the future. 
     It is further noted that the eyeglasses structure  1  of the present disclosure is not limited by the above-referenced examples. 
     Fifth Embodiment 
     Reference is made to  FIG. 10 , which is a side cross-sectional view of an eyeglasses structure according to a fifth embodiment of the present disclosure. Reference is also made to  FIG. 1  to  FIG. 9 . As shown in the above-referenced figures, the operation of certain elements of the eyeglasses structure in the present embodiment is similar to their counterparts of the eyeglasses structures in the above-referenced embodiments, which is therefore not described in detail herein. It should be noted that in the present embodiment, the positioning portion  101  includes a plurality of fixing portions  1011 . The first engaging portion  120  has at least one first slot  1202 . The first engaging portion  120  is detachably fitted to and engaged with a corresponding fixing portion  10121  through at least one first slot  1202 . The second engaging portion  130  has at least one second slot  1302 . The second engaging portion  130  is detachably fitted to and engaged with a corresponding fixing portion  1011  through at least one second slot  1302 . In certain embodiments, each fixing portion  1011  is in the shape of a mushroom, and each of the first slot  1202  and the second slot  1302  is in the shape of a droplet. 
     Specifically, the positioning portion  101  of the eyeglasses structure  1  of the present disclosure includes a plurality of fixing portions  1010 . The first engaging portion  120  correspondingly has at least one first slot  1202 . The second engaging portion  130  correspondingly has at least one second slot  1302 . It is noted that in the present embodiments, the number of each of the first slot  1202  and the second slot  1302  being one is for illustrative purpose only, and the present disclosure is not limited thereto. In practical usage, the number of each of the first slot  1202  and the second slot  1302  can be two or more than two. Therefore, when the eyeglasses structure  1  undergoes assembling, the first engaging portion  120  can be engaged with the corresponding fixing portion(s)  1011  in a snap-fit manner through at least one first slot  1202 , so as to be engaged with the positioning portion  101 . Also, the second engaging portion  130  can be engaged with the corresponding fixing portion(s)  1011  in a snap-fit manner through at least one second slot  1302 , so as to be engaged with the positioning portion  101 . In addition, the eyeglass structure  1  of the present disclosure can further have a design in which the fixing portion(s)  1011  is in a mushroom shape, and the first slot(s)  1202  and the second slot(s)  1302  are in a droplet shape, so that the first engaging portion  120  and the second engaging portion  130  can be firmly engaged with the positioning portion  101  without falling off therefrom easily. 
     In certain embodiments, the first engaging portion  120  and the second engaging portion  130  are made of elastic material. Therefore, even after a user removes the first engaging portion  120  or the second engaging portion  130  from the positioning portion  101 , the fixing portion(s)  1011  retains its original shapes, so that a user can again fit the first engaging portion  120  or the second engaging portion  130  into the positioning portion  101  in the future. 
     It is further noted that the eyeglasses structure  1  of the present disclosure is not limited by the above-referenced examples. 
     Sixth Embodiment 
     Reference is made to  FIG. 11 , which is a side cross-sectional view of an eyeglasses structure according to a sixth embodiment of the present disclosure. 
     Reference is also made to  FIG. 1  to  FIG. 10 . As shown in the above-referenced figures, the operation of certain elements of the eyeglasses structure in the present embodiment is similar to their counterparts of the eyeglasses structures in the above-referenced embodiments, which is therefore not described in detail herein. It should be noted that in the present embodiment, the positioning portion  101  includes a plurality of fixing portions  1011  and a plurality of fixing slots  1012 . The first engaging portion  120  has at least one first slot  1202  and at least one first protruding portion  1201 . The first engaging portion  120  is detachably fitted to and engaged with a corresponding fixing portion  1011  through at least one first protruding slot  1202 , and detachably fitted to and engaged with a corresponding fixing slot  1010  through at least one first protruding portion  1201 . The second engaging portion  130  has at least one second slot  1302  and at least one second protruding portion  1301 . The second engaging portion  130  is detachably fitted to and engaged with a corresponding fixing portion  1011  through at least one second slot  1302 , and detachably fitted to and engaged with a corresponding fixing slot  1010  through at least one second protruding portion  1301 . In certain embodiments, each fixing portion  1011 , the first protruding portion  1201  and the second protruding portion  1301  is in the shape of a mushroom, and each of the fixing slot  1010 , the first slot  1202  and the second slot  1302  is in the shape of a droplet. 
     For example, the positioning portion  101  of the eyeglasses structure  1  of the present disclosure includes a plurality of fixing slots  1010  and a plurality of fixing portions  1011 . The first engaging portion  120  correspondingly has at least one first protruding portion  1201  and at least one first slot  1202 . The second engaging portion  130  correspondingly has at least one second protruding portion  1301  and at least one second slot  1302 . It is noted that in the present embodiments, the number of each of the first protruding portion  1201 , the first slot  1202 , the second protruding portion  1301  and the second slot  1302  being one is for illustrative purposely, and the present disclosure is not limited thereto. In practical usage, the number of the first protruding portion  1201 , the first slot  1202 , the second protruding portion  1301  or the second slot  1302  can be two or more than two. Therefore, when the eyeglasses structure  1  undergoes assembling, the first engaging portion  120  can be engaged with the corresponding fixing slot(s)  1010  in a snap-fit manner through at least one first protruding portion  1201 , and be engaged with the corresponding fixing portion(s)  1011  through at least one first slot  1202 , so as to be engaged with the positioning portion  101 . Also, the second engaging portion  130  can be engaged with the corresponding fixing slot(s)  1010  in a snap-fit manner through at least one second protruding portion  1301 , and be engaged with the corresponding fixing portion(s)  1011  in a snap-fit manner through at least one second slot  1302 , so as to be engaged with the positioning portion  101 . 
     In addition, the eyeglass structure  1  of the present disclosure can further have a design in which each of the fixing portion(s)  1011 , the first protruding portion(s)  1201  and the second protruding portion(s)  1301  is in a mushroom shape, and each of the fixing slot(s)  1010 , the first slot(s)  1202  and the second slot(s)  1302  are in a droplet shape, so that the first engaging portion  120  and the second engaging portion  130  can be firmly engaged with the positioning portion  101  without falling off therefrom easily. 
     In certain embodiments, the positioning portion  101  is made of elastic material. Therefore, even after a user removes the first engaging portion  120  or the second engaging portion  130  from the positioning portion  101 , the first protruding portion  1201  and the second protruding portion  1301  retain their original shapes. Also, since the first engaging portion  120  and the second engaging portion  130  are made of elastic material, the fixing portion(s)  1011  retains its original shape. Therefore, a user can again engage the first engaging portion  120  or the second engaging portion  130  with the positioning portion  101  in the future. 
     It is further noted that the eyeglasses structure  1  of the present disclosure is not limited by the above-referenced examples. 
     One of the beneficial effects of the present disclosure is that, through the technical features of “the first elastic contacting member  12  includes a first engaging portion  120  detachably fitted to and engaged with the positioning portion  101 , a first linking rod portion  121  connected to the first engaging portion  120 , and a first pad portion  122  connected to the first linking rod portion  121 ,” “the second elastic contacting member  13  includes a second engaging portion  130  detachably fitted to and engaged with the positioning portion  101 , a second linking rod portion  131  connected to the second engaging portion  130 , and a second pad portion  132  connected to the second linking rod portion  131 ,” “the radial cross-sectional area of the first linking rod portion  121  is smaller than the radial cross-sectional area of the first pad portion  122 , so as to increase the swing angle of the first pad portion  122  relative to the first engaging portion  120 ,” and “the radial cross-sectional area of the second linking rod portion  131  is smaller than the radial cross-sectional area of the second pad portion  132 , so as to increase the swing angle of the second pad portion  132  relative to the second engaging portion  130 ,” the present disclosure enables the first pad portion  122  and the second pad portion  132  to automatically perform angle adjustment according to a wearer&#39;s nose bridge curve in a rotating movement similar to that of a universal bearing, so as to achieve a good contacting relation between the nose bridge and the first pad portion  122  and the second pad portion  132 , reduce the pressure exerted on the nose bridge, resolve the adjustment problem arisen from the high deformability of a conventional eyeglasses nose bridge pad, and significantly increase the comfort and stability when the eyeglasses are worn on a user&#39;s nose. 
     Further, through the elastic property of the first elastic contacting member  12  and the second elastic contacting member  13 , the first pad portion  122  and the second pad portion  132  automatically perform angle adjustment according to a wearer&#39;s nose bridge curve, leading to a good contacting relation between the nose bridge and the first pad portion  122  and the second pad portion  132 . Also, when the first linking rod portion  121  and the second linking rod portion  131  of the eyeglasses structure  1  are pressed by external force or other factors and becoming deformed, resulting in the first pad portion  122  and the second pad portion  132  not suiting the wearer&#39;s nose bridge properly, the wearer needs only to remove the eyeglasses structure  1  from his or her nose bridge and then wear it again, as the first pad portion  122  and the second pad portion  132  can again automatically perform angle adjustment according to the wearer&#39;s nose bridge curve, leading to a good contacting relation between the nose bridge and the first pad portion  122  and the second pad portion  132 . 
     Further, since the radial cross-sectional area of the first linking rod portion  121  is smaller than the radial cross-sectional area of the first pad portion  122 , the swing angle of the first pad portion  122  relative to the first engaging portion  120  is increased. Also, since the radial cross-sectional area of the second linking rod portion  131  is smaller than the radial cross-sectional area of the second pad portion  132 , the swing angle of the second pad portion  132  relative to the second engaging portion  130  is increased. Therefore, a bearable deformation degree of each of the first linking rod portion  121  and the second linking rod portion  131  is increased through the afore-referenced design, so that the first linking rod portion  121  and the second linking rod portion  131  are not damaged or broken after a series of bending and deforming. Also, when the eyeglasses structure  1  is hit by an external force, the first linking rod portion  121  and the second linking rod portion  131  can bend or deform with the aid of their high tolerable deformation capacity, instead of directly transmitting the external force borne by such to the wearer&#39;s nose bridge, thus avoiding damage to the user&#39;s nose bridge. 
     The foregoing description of the exemplary embodiments of the present disclosure has been presented only for the purposes of illustration and description and is not intended to be exhaustive or to limit the present disclosure to the precise forms disclosed. Many modifications and variations are possible in light of the above teaching. 
     The embodiments were selected and described in order to explain the principles of the present disclosure and their practical application so as to enable others skilled in the art to utilize the present disclosure and various embodiments and with various modifications as are suited to the particular use contemplated. Alternative embodiments will become apparent to those skilled in the art to which the present disclosure pertains without departing from its spirit and scope.