INTERLOCKABLE MAGNETIC SHELTER FRAME FOR SPECTACLE FRAME

Abstract: An interlockable magnetic shelter frame (20) is adapted for mounting on a primary spectacle frame (10) which comprises a frame body (11) for mounting a pair of lenses (121, 122) in position, wherein each side extension of the primary spectacle frame has an engagement device provided on a rear side thereof. The shelter frame for supporting two auxiliary lenses (201, 202) includes a bridge extended between the two auxiliary lenses, two side interlocking device which are provided at two outer sides of the two auxiliary lenses respectively for interlocking with the engagement device of the frame body of the primary spectacle frame so as to securely mount the shelter frame on the primary spectacle frame.

Description: Title Interlockable Magnetic Shelter Frame for Spectacle Frame Technical Field The present invention relates to a spectacle frame, and more particularly to an interlocking magnetic shelter frame for supporting auxiliary lenses, such as sunglasses, wherein the interlocking magnetic shelter frame is adapted for detachably mounting on a primary spectacle frame by means of a magnetic means equipped with an interlocking engagement. Background Art An auxiliary shelter frame is widely be used today. A conventional shelter frame such as clip-on sunglasses is adapted to detachably mount on shortsighted or longsighted eyeglasses, so that wearer does not need to pay for and carry another shortsighted or longsighted sunglasses. However, the clip-on sunglasses must protrude a plurality of clipping claws in order to mount on the primary eyeglasses, the clipping claws may scratch the lenses of the primary eyeglasses during the mounting process. Also, the conventional clip-on sunglass requires both hands operation in order to align the clip-on sunglasses on the primary eyeglasses in correct position. It is dangerous that the wearer needs both hands to operate the clip-on sunglasses while he or she is driving. In order to solve the problems of the above mentioned clip-on sunglasses, magnetic attachment is recently introduced into the eyeglasses industry. A primary pair of magnet members are affixed on two upper side extensions of a primary spectacle frame respectively. An auxiliary shelter frame such as a sunglasses includes a pair of arms for engaging over the two upper side extensions for preventing the auxiliary shelter frame from moving downward relative to the primary spectacle frame and having an auxiliary pair of magnet members for engaging with the primary magnet members of the primary spectacle frame and for stably attaching the auxiliary shelter frame to the primary spectacle frame. However, the users have to align two pairs of magnet members. If the auxiliary magnet members of the sunglasses are misaligned with the primary magnet members of the primary spectacle frame, the sunglasses will fall down from the primary spectacle frame easily. Although the mounting process of the conventional auxiliary magnetic shelter frame is as simple as putting the auxiliary shelter frame on the face of the pπmary spectacle frame that the auxiliary shelter frame will be automatically attached on the pπmary spectacle frame, the weight of the eyeglasses is heavier than usual It will make the wearer uncomfortable because of the additional magnet members installed thereon for ensuring magnetic attraction with the sunglasses Moreover, since the auxihary shelter frame and the pπmary spectacle frame are connected by two sets of engaging members, the wearer would easily misalign the auxiliary shelter frame on the pπmary spectacle frame and the auxiliary shelter frame will drop off from the pπmary spectacle frame easily, especially during sporting and doing exercise Also, the magnet members on the pπmary frame, according to the pπor arts, adversely affect the entire ornamental appearance of the pπmary frame If a pair of smaller engaging members is substituted in order to keep the ornamental appearance of the pnmary spectacle frame, not only the wearer will suffer in the difficulty of aligning the auxiliary shelter frame with the pπmary spectacle frame, but also the auxiliary shelter frame will easily drop off due to even a slightly head shake Disclosure of Invention The main object of the present invention is to provide an interlockable magnetic shelter frame for spectacle frame, wherein the interlockable magnetic shelter frame can be precisely and easily attached on a pπmary spectacle frame by magnetic attraction Moreover, the shelter frame is arranged to interlock with the pπmary spectacle frame so that the shelter frame is securely mounted on the pπmary spectacle frame Another object of the present invention is to provide an interlockable magnetic shelter frame for spectacle frame, wherein the two arms of the magnetic shelter frame not only is magnetically attracted to the two side extensions of the pπmary spectacle frame, but also is arranged to engage with the two side extensions of the pπmary spectacle, so as to prevent up and down movement or sideward movement of the magnetic shelter frame with respect to the pπmary spectacle frame once the magnetic shelter frame is mounted in position Another object of the present invention is to provide an interlockable magnetic shelter frame for spectacle frame, wherein even though the magnetic shelter frame is magnetically attracted and engaged with the pπmary spectacle frame, the wearer still may merely use one hand to attach or detach the shelter frame during exercising or driving Another object of the present invention is to provide an interlockable magnetic shelter frame for spectacle frame wherein the engaging members are arranged at the rear side of the pπmary spectacle frame so that no magnet member is appeared in front In other words, the ornamental appearance of the pπmary spectacle can thus be maintained, so that the pπmary spectacle frame looks identical to a common spectacle frame even though the magnetic shelter frame is removed Another object of the present invention is to provide an interlockable magnetic shelter frame for pπmary spectacle frame wherein at least the two side extensions of the pπmary spectacle frame are made of soft-magnetic metal having magnetic attraction ability such as mild steel, low carbon steel and high grade steel, so that no additional engaging member is need to affix on the pπmary spectacle frame so as to further reduce the weight of the primary spectacle frame Furthermore, it also enables the entire pπmary spectacle frame, including the two side extensions, to be electroplated in one step Another object of the present invention is to provide an interlockable magnetic shelter frame for spectacle frame, wherein the shelter frame provides a bπdge clipper for clipping the bπdge of the pπmary spectacle frame, so as to further securely mount the shelter frame on the pπmary spectacle frame In order to accomplish the above objects, the present invention provides an interlockable magnetic shelter frame adapted for mounting in front of a pπmary spectacle frame which compπses a frame body for mounting a pair of lenses in position The frame body comprises a bπdge connected between the two lenses and two side extensions provided at two outer sides of the lenses respectively each having a hinge portion extended rearwardly therefrom for pivotally coupling a temple Each of the side extensions has a engagement means provided on a rear side thereof The shelter frame for supporting two auxiliary lenses comprises a bπdge extended between the two auxiliary lenses, two side interlocking means which are provided at two outer sides of the two auxiliary lenses respectively for interlocking with the two side extensions of the frame body of the primary spectacle frame so as to securely mount the shelter frame on the pπmary spectacle frame Each of the interlocking means compπses a supporting arm extended rearwardly for πding on top of the respective side extension of the body frame of the pπmary spectacle frame, and a magnetic seat which compπses a magnet housing downwardly connected from the supporting arm and a magnet mounted in the magnet housing with one magnetic pole thereof arranged to face towards and align with the engagement means of the respective side extension when the shelter frame is mounted on the frame body of the primary spectacle frame In order to mount the shelter frame in front of the frame body of the pπmary spectacle frame, simply put the shelter frame in front of the pπmary spectacle frame and drop it down Due to the magnetic attraction, the two magnetic seat of the shelter frame are magnetically attracted from behind to engage with the two engagement means of the two side extensions of the frame body of the pπmary spectacle frame respectively Thus, the two interlocking means of the shelter frame are respectively interlocked with the two side extensions of the frame body So, the present invention provides not only the magnetic attraction but also the interlocking engagement for securely mounting the shelter frame on the pnmary spectacle frame Brief Description of Drawings Fig 1 is a rear perspective view of a pπmary spectacle frame according to a first preferred embodiment of the present invention Fig 2 is a front perspective view of a shelter frame according to the above first preferred embodiment of the present invention Fig 3 is a top view of the shelter frame mounted on the pπmary spectacle frame according to the above first preferred embodiment of the present invention Fig 4 is a partially sectional view of the shelter frame mounted on the pπmary spectacle frame according to the above first prefeπed embodiment of the present invention Fig 5 is a rear perspective view of a primary spectacle frame according to a second prefeπed embodiment of the present invention Fig 6 is a front perspective view of a shelter frame according to the above second preferred embodiment of the present invention Fig 7 is a top view of the shelter frame mounted on the pπmary spectacle frame according to the above second preferred emoodiment of the present invention Fig 8 is a partially sectional view of the shelter frame mounted on the pπmary spectacle frame according to the above second preferred embodiment of the present invention Best Mode for Carrying Out the Invention Referring to Figs 1 to 4 of the drawings, an interlockable magnetic shelter frame 20 adapted for mounting on pπmary spectacle frame 10 according to a first preferred embodiment of the present invention is illustrated The pπmary spectacle frame 10 compπse a frame body 11 for mounting a pair of lenses 121, 122 in position The frame body 11 compπses a pπmary bπdge 111 connected between the two lenses 121, 122, two side extensions 13, 14 provided at two outer sides of the lenses 121, 122 respectively each having a hinge portion 130. 140 extended rearwardly therefrom for pivotally coupling a temple 112, 113 Practically, the frame body 11 can be constructed as a conventional spectacle frame to have a pair of πms as shown in Fig 1 or a πmless frame that the pπmary bπdge 111 and the two side extensions 13, 14 are directly fastened to the edges of the two lenses 121, 122 The major different between the frame body 11 of the present invention and the conventional spectacle frame is the two side extensions 13, 14, each of which has a engagement means provided on a rear side 131, 141 thereof As shown in Figs 1, 3 and 4, according to the first preferred embodiment of the present invention, the two side extensions 13, 14 are preferred to be made of soft-magnetic metal having magnetic attraction ability such as mild steel, low carbon steel and high grade steel, each of the two engagement means compπses a circular engaging member 15, 16 integrally protruded from the respective rear side 131, 141 of the respective side extension 13, 14 In other words, the engaging members 15, 16 are also made of soft-magnetic metal that is attractive to magnetic material such as permanent magnet Referring to Figs 2, 3 and 4, the shelter frame 20 for supporting two auxiliary lenses 201, 202 compπses a bπdge 21 extended between the two auxihary lenses 201, 202, two side interlocking means 22. 23 which are provided at two outer sides of the two auxiliary lenses 201, 202 respectively for interlocking with the two side extensions 13, 14 of the frame body 11 of the pπmary spectacle frame 10 so as to securely mount the shelter frame 20 on the pπmary spectacle frame 10 The two auxiliary lenses 201. 202 can be shaded lenses supported by the shelter frame 20 to form a detachable sunglasses Each of the interlocking means 22. 23 compπses a supporting arm 221, 231 extended rearwardly for πding on top of the respective side extension 13, 14 of the body frame 11 of the pnmary spectacle frame 10, and a magnetic seat 24, 25 downwardly connected from the supporting arm 221, 231 A circular engagement groove 240. 250 is formed on a front face of each of the two magnetic seats 24, 25. wherein the depth of each of the engagement grooves 240, 250 must be larger than the thickness of the engaging members 15, 16 and the diameter of each of the engagement grooves 240, 250 is preferably equal to or slighter larger than the diameter of the engaging members 15, 16, so that the two engaging members 15, 16 can be fittedly engaged into the two engagement grooves 240, 250 when the shelter frame 20 is mounted on the pπmary spectacle frame 10 as shown in Fig 3, so as to further interlock the shelter frame 20 with the pπmary spectacle frame 10 by preventing any upward, downward, leftward, and πghtward movement of the shelter frame 20 The two magnetic seats 24, 25 can also be integrally made of permanent magnetic metal, and the two engagement grooves 240. 250 are indented on the front faces thereof However, according to the first preferred embodiment of the present invention, each of the magnetic seats 24, 25 is preferred to be constructed by a magnet housing 241, 242, which is made of non-magnetic mateπal or soft-magnetic metal having magnetic attraction ability such as mild steel, low carbon steel and high grade steel and downwardly connected from the supporting arm 221, 231, and a permanent magnet 242, 252 mounted in the magnet housing 241, 251 with one magnetic pole thereof arranged to face towards and align with the respective engaging member 15, 16 of the respective side extension 13, 14 when the shelter frame 20 is mounted on the frame body 1 1 of the pπmary spectacle frame 10 According to the first preferred embodiment, the two magnets 242, 252 are two circular permanent metallic magnets having a diameter equal to or slighter larger than the diameter of the engaging members 15. 16 Moreover, the thickness of the two magnets 242, 252 are respectively smaller than the depth of the two magnet housings 241, 251 so as to define the two circular engagement grooves 240, 250 when the two magnets 242, 252 are respectively embedded in the two magnet housings 241, 251 for engaging with the two circular engaging members 15, 16 of the two side extensions 13, 14 of the pπmary spectacle frame 10 As shown in Figs 3 and 4. when the two supporting arms 221, 231 πde on the two side extensions 13, 14 respectively, the two magnetic seats 24, 25 will attract from behind with the two engaging members 15, 16 of the two side extensions 13, 14 of the frame body 1 1 of the pπmary spectacle frame 10 respectively until the two protruded engaging members 15, 16 are coaxially inserted into the engagement grooves 240, 250 respectively, so as to firmly engage the shelter frame 20 with the pπmary spectacle frame 10 in an interlocking manner It is well known that the magnetic attraction force between two magnets is an axial linear force that has low resistant to shear force applied between the two magnets By means of the engagement structure of the two protruding engaging members 15, 16 and the two indented engagement grooves 240, 250, the axial magnetic attraction between engaging members 15, 16 of the shelter frame 20 and the two magnets 242, 252 of the pπmary spectacle frame 10 is ensured by enhancing the resistant to any shear force that may be applied to the two engaging members 15, 16 Moreover, any upward downward or sideward movements of the shelter frame 20 can also be blocked and prevented so as to ensure the shelter frame 20 being firmly mounted on the pπmary spectacle frame 10 As shown in Figs 2 and 3, the bπdge 21 of the shelter frame 20 is a chp-bπdge that is generally in U-shaped and compπses two rearwardly extending side wires 211 adapted for supporting on two ends of the pπmary bπdge 111 of the frame body 1 1 and a downwardly curved clipping wire 212 extending behind the pπmary bπdge 111, so that the chp-bndge 21 is clipped on the pπmary bπdge 11 1 when the shelter frame 20 is mounted on the pπmary spectacle frame 10 Alternatively, the two engaging members 15, 16 can be made of two circular shaped permanent magnet members integrally affixed to the two rear sides 131, 141 of the two side extensions 13, 14 which are made of non magnetic matenal. so as to enhance the magnetic attraction between the side extensions 13, 14 and the two magnets 242, 252 of the two magnetic seats 24, 25 Moreover, if the two engaging members are magnet members, then the two magnetic seat can also be integrally made of soft-magnetic metal having magnetic attraction ability such as mild steel, low carbon steel and high grade steel, and the two engagement grooves 240, 250 are simply indented on the front faces thereof Good magnetic attraction and engagement between the two engaging members 15. 16 and the two magnetic seats 24. 25 can also be achieved In order to mount the shelter frame 20 in front of the frame body 11 of the pπmary spectacle frame 10. the user may simply use one hand to put the shelter frame 20 in front of the pπmary spectacle frame 10 and drop it down Due to the magnetic attraction, the two magnetic seats 24, 25 of the shelter frame 20 are magnetically attracted from behind to engage with the two engaging members 15. 16 of the two side extensions 13, 14 of the frame body 11 of the pπmary spectacle frame 10 respectively Moreover, the two protruded engaging members 15, 16 can further guide the two magnetic seats 24. 25 to automatically align and attract with the two side extensions 13, 14 respectively At the same time, the enhanced axial attraction between the two engaging members 15, 16 and the two magnets 242, 252 can also ensure the engagement between the magnetic seats 24. 25 and the two side extensions 13, 14 Thus, the two interlocking means 22, 23 of the shelter frame 20 are respectively interlocked with the two side extensions 13, 14 of the frame body 11 So, the present invention provides not only the magnetic attraction but also the interlocking engagement for securely mounting the shelter frame 20 on the pπmary spectacle frame 10 According to the present invention, the user can also detach the shelter frame 20 from the pπmary spectacle frame 10 easily by slightly pushing the shelter frame 20 towards the pπmary spectacle frame 10 until the two magnetic seats 24, 25 of the two interlocking means 22, 23 move rearwardly apart from the two engaging members 15, 16. so that the magnetic attraction and mechanical engagement between the shelter frame 20 and the pπmary spectacle frame 10 are released at the same time, and then the user may detach the shelter frame 20 by simply lifting it up from the pπmary spectacle frame 10 with one hand Referring to Figs 5 to 8, alternative modes of shelter frame 20 " and pnmary spectacle frame 10 " according to a second preferred embodiment of the present invention is illustrated As shown in Figs 5 and 6. the attraction and engagement concept and structure of the second embodiment is same as the above first embodiment The modification in the second embodiment includes that the two magnets 242, 252 are made to have a thickness larger than the depth of the magnet housing 241, 251 so that a pole end of each of the magnets 242, 252 is frontwardly protruded from the respective magnet housing 241. 252 to form two engaging members 240', 250' instead of the two engagement grooves 240, 250 in the above first embodiment Correspondingly, two circular engagement grooves 15', 16 ' are respectively indented on the two rear sides 131 ', 141 ' of the two side extensions 13 " , 14", which are made of soft-magnetic metal having magnetic attraction ability, such as mild steel, low carbon steel and high grade steel Each of the two engagement grooves 15', 16', for substitute the two engaging members 15. 16 of the first embodiment, has a diameter equal to or slightly larger than the diameter of the magnets 242', 252' The mounting and detaching operation of the shelter frame 20' and the pπmary spectacle frame 10 ' is the same as the above first embodiment However, when the shelter frame 20' is put in front of the pπmary spectacle frame 10 and drop it down Due to the magnetic attraction, the two engaging members 240', 250' of the two magnetic seats 24'. 25 " of the shelter frame 20' are magnetically attracted from behind to insert into the two engagement grooves 15', 16 " so as to engage with the two side extensions 13', 14 ' of the pπmary spectacle frame 10" respectively The magnetic attraction and engagement structure of the two engaging members 240', 250' and the two engagement grooves 15', 16' also provides automatic alignment, engagement, and guiding functions as descπbed in the above first embodiment

Claims: What is Claimed is 1 An interlockable magnetic shelter frame for mounting on a pπmary spectacle frame which compπses a frame body for mounting a pair of lenses in position, wherein said frame body compπses a pπmary bπdge connected between said two lenses and two side extensions provided at two outer sides of said lenses respectively, wherein each of said side extensions has a hinge portion extended rearwardly therefrom for pivotally coupling a temple and an engagement means is provided behind each of said extensions, said shelter frame, which supports two auxihary lenses thereon, compπsing a bπdge extended between said two auxiliary lenses, two side interlocking means which are provided at two outer sides of said two auxiliary lenses for interlocking with said two engagement means of said frame body of said pπmary spectacle frame respectively so as to securely mount said shelter frame on said pπmary spectacle frame, each of said interlocking means compπsing a supporting arm extended rearwardly across said respective side extension of said body frame of said primary spectacle frame, and a magnetic seat connected from said supporting arm for magnetically engaging with said respective engagement means behind said respective side extension so as to securely mount said shelter frame in front of said pπmary spectacle frame 2 The interlockable magnetic shelter frame, as recited in claim 1, wherein said two engagement means are provided on two rear sides of said pair of side extensions respectively, said two supporting arms of said pair of interlocking means are extended rearwardly for riding across said pair of side extensions of said body frame of said pπmary spectacle frame respectively, wherein two magnetic seats are respectively connected to said two supporting arms for magnetically attracting from behind said two side extensions so as to engagement with said two engagement means of said two side extension respectively 3 The interlockable magnetic shelter frame, as recited claim 2, wherein each of said two engagement means compπses an engaging member integrally protruded from said respective rear side of said respective side extension 4 The interlockable magnetic shelter frame, as recited in claim 3, wherein said two engaging members integrally protruded therefrom are made of soft magnetic metal having magnetic attraction ability 5 The interlockable magnetic shelter frame, as recited in claim 3, wherein said two engaging members are made of permanent magnets integrally affixed on said two rear sides of said two side extensions 6 The interlockable magnetic shelter frame, as recited in claim 4, wherein each of said two magnetic seats compπses a magnet housing which is made of non-magnetic mateπal and a magnet mounted in said magnet housing with one magnetic pole thereof arranged to face towards and align with said respective engaging member of said respective side extension when said shelter frame is mounted in front of said frame body of said pπmary spectacle frame 7 The interlockable magnetic shelter frame, as recited in claim 5, wherein each of said two magnetic seats comprises a magnet housing which is made of non-magnetic mateπal and a magnet mounted in said magnet housing with one magnetic pole thereof arranged to face towards and align with said respective engaging member of said respective side extension when said shelter frame is mounted in front of said frame body of said primary spectacle frame 8 The interlockable magnetic shelter frame, as recited in claim 5. wherein said two magnetic seats are integrally made of soft-magnetic metal having magnetic attraction ability, wherein said two magnetic seats are arranged to face towards and align with said two engaging members of said two side extensions respectively when said shelter frame is mounted in front of said frame body of said primary spectacle frame 9 The interlockable magnetic shelter frame, as recited in any one of claims 1 to 8, wherein said two magnetic seats are respectively downwardly connected from said two supporting arms which are respectively extended rearwardly to ride on top of said two side extensions of said pπmary spectacle frame 10 The interlockable magnetic shelter frame, as recited in any one of claims 3 to 8, wherein an engagement groove is formed on a front face of each of said two magnetic seats, wherein said two engaging members are arranged to fittedly engage into said two engagement grooves when said shelter frame is mounted in front of said primary spectacle frame so as to further interlock said shelter frame with said primary spectacle frame by preventing upward downward, leftward, and πghtward movements of said shelter frame 11 The interlockable magnetic shelter frame, as recited in claim 6, 7 or 8. wherein a thickness of each of said two magnets is smaller than a depth of said two magnet housing so as to define an engagement groove on a front face of each of said two magnetic seats when said two magnets are respectively embedded in said two magnet housings, wherein said two engaging members are arranged to fittedly engage into said two engagement grooves when said shelter frame is mounted in front of said pπmary spectacle frame so as to further interlock said shelter frame with said pπmary spectacle frame by preventing upward, downward, leftward, and πghtward movements of said shelter frame 12 The interlockable magnetic shelter frame, as recited in claim 10, wherein said two magnetic seats are respectively downwardly connected from said two supporting arms which are respectively extended rearwardly to πde on top of said two side extensions of said pπmary spectacle frame 13 The interlockable magnetic shelter frame, as recited in claim 1 1, wherein said two magnetic seats are respectively downwardly connected from said two supporting arms which are respectively extended rearwardly to ride on top of said two side extensions of said pnmary spectacle frame 14 The interlockabe magnetic shelter frame, as recited in any one of the claims 1 to 8, wherein each of said engaging members, said magnets and said engagement grooves is in circular shaped, and each of said two magnets has a diameter at least equal to a diameter of said engaging members 15 The interlockabe magnetic shelter frame, as recited in claim 9, wherein each of said engaging members, said magnets and said engagement grooves is in circular shaped, and each of said two magnets has a diameter at least equal to a diameter of said engaging members 16 The interlockabe magnetic shelter frame, as recited in claim 10, wherein each of said engaging members, said magnets and said engagement grooves is in circular shaped, and each of said two magnets has a diameter at least equal to a diameter of said engaging members 17 The interlockabe magnetic shelter frame, as recited in claim 1 1, wherein each of said engaging members, said magnets and said engagement grooves is in circular shaped, and each of said two magnets has a diameter at least equal to a diameter of said engaging members 18 The interlockabe magnetic shelter frame, as recited in claim 12, wherein each of said engaging members, said magnets and said engagement grooves is in circular shaped, and each of said two magnets has a diameter at least equal to a diameter of said engaging members 19 The interlockabe magnetic shelter frame, as recited in claim 13, wherein each of said engaging members, said magnets and said engagement grooves is in circular shaped, and each of said two magnets has a diameter at least equal to a diameter of said engaging members 20 The interlockable magnetic shelter frame for mounting on the pπmary spectacle frame, as recited in any one of claims 1 to 8, said bπdge of said shelter frame is a chp-bπdge which is generally in U-shaped and compnses two rearwardly extending side wires adapted for supporting on two ends of said pπmary bndge of said frame body and a downwardly curved clipping wire extending behind said pπmary bπdge, wherein said clip-bπdge is clipped on said pπmary bndge when said shelter frame is mounted in front of said pnmary spectacle frame 21 The interlockable magnetic shelter frame for mounting on the pπmary spectacle frame, as recited in claim 9, said bridge of said shelter frame is a clip-bπdge which is generally in U-shaped and compπses two rearwardly extending side wires adapted for supporting on two ends of said pnmary bπdge of said frame body and a downwardly curved clipping wire extending behind said pnmary bπdge, wherein said clip-bridge is clipped on said pπmary bridge when said shelter frame is mounted in front of said pnmary spectacle frame 22 The interlockable magnetic shelter frame for mounting on the pnmary spectacle frame, as recited in claim 10, said bπdge of said shelter frame is a clip-bridge which is generally in U-shaped and compnses two rearwardly extending side wires adapted for supporting on two ends of said pnmary bndge of said frame body and a downwardly curved clipping wire extending behind said pnmary bπdge, wherein said clip-bπdge is clipped on said pnmary bπdge when said shelter frame is mounted in front of said pnmary spectacle frame 23 The interlockable magnetic shelter frame for mounting on the primary spectacle frame, as recited in claim 1 1, said bπdge of said shelter frame is a c p-bπdge which is generally in U-shaped and comprises two rearwardly extending side wires adapted for supporting on two ends of said pπmary bπdge of said frame body and a downwardly curved clipping wire extending behind said pπmary bπdge, wherein said chp-bπdge is clipped on said pπmarv bndge when said shelter frame is mounted in front of said pπmary spectacle frame 24 The interlockable magnetic shelter frame for mounting on the primary spectacle frame, as recited in claim 12, said bndge of said shelter frame is a clip-bridge which is generally in U-shaped and comprises two rearwardly extending side wires adapted for supporting on two ends of said pnmary bπdge of said frame body and a downwardly curved clipping wire extending behind said pπmary bridge, wherein said clip-bridge is clipped on said pπmary bridge when said shelter frame is mounted in front of said pπmary spectacle frame 25 The lnterlockar le magnetic shelter frame for mounting on the pnmary spectacle frame, as recited in claim 13, said bndge of said shelter frame is a chp-bndge which is generally in U-shaped and compπses two rearwardly extending side wires adapted for supporting on two ends of said pnmary bndge of said frame body and a downwardly curved clipping wire extending behind said pπmary bπdge, wherein said clip-bπdge is chpped on said pnmary bπdge when said shelter frame is mounted in front of said pnmary spectacle frame 26 The interlockable magnetic shelter frame for mounting on the pnmary spectacle frame, as recited in claim 14, said bndge of said shelter frame is a chp-bndge which is generally in U-shaped and compπses two rearwardly extending side wires adapted for supporting on two ends of said pπmary bndge of said frame body and a downwardly curved clipping wire extending behind said pπmary bridge, wherein said chp-bndge is clipped on said pπmary bπdge when said shelter frame is mounted in front of said pπmary spectacle frame 27 The interlockable magnetic shelter frame for mounting on the pπmary spectacle frame, as recited in claim 15, said bπdge of said shelter frame is a chp-bndge which is generally in U-shaped and compnses two rearwardly extending side wires adapted for supporting on two ends of said pπmary bπdge of said frame body and a downwardly curved clipping wire extending behind said pnmary bndge, wherein said chp-bndge is clipped on said primary bπdge when said shelter frame is mounted in front of said pπmary spectacle frame 28 The interlockable magnetic shelter frame for mounting on the pπmary spectacle frame, as recited in claim 16, said bπdge of said shelter frame is a clip-bπdge which is generally in U-shaped and compnses two rearwardly extending side wires adapted for supporting on two ends of said pπmary bndge of said frame body and a downwardly curved clipping wire extending behind said pnmary bndge. wherein said clip-bridge is clipped on said primary bndge when said shelter frame is mounted in front of said pnmary spectacle frame 29 The interlockable magnetic shelter frame for mounting on the pπmary spectacle frame, as recited in claim 17, said bπdge of said shelter frame is a clip-bridge which is generally in U-shaped and comprises two rearwardly extending side wires adapted for supporting on two ends of said pπmary bπdge of said frame body and a downwardly curved clipping wire extending behind said pπmary bπdge, wherein said chp-bndge is clipped on said pnmary bridge when said shelter frame is mounted in front of said pnmary spectacle frame 30 The interlockable magnetic shelter frame for mounting on the pnmary spectacle frame, as recited in claim 18, said bπdge of said shelter frame is a clip-bπdge which is generally in U-shaped and compπses two rearwardly extending side wires adapted for supporting on two ends of said pnmary bπdge of said frame body and a downwardly curved clipping wire extending behind said pπmary bridge, wherein said c p-bndge is clipped on said primary bπdge when said shelter frame is mounted in front of said pnmary spectacle frame 31 The interlockable magnetic shelter frame for mounting on the pnmary spectacle frame, as recited in claim 19, said bndge of said shelter frame is a chp-bndge which is generally in U-shaped and compπses two rearwardly extending side wires adapted for supporting on two ends of said pπmary bπdge of said frame body and a downwardly curved clipping wire extending behind said pπmary bπdge, wherein said clip-bridge is clipped on said pπmary bridge when sad shelter frame is mounted in front of said pnmary spectacle frame 32 The interlockabe magnetic shelter frame, as recited in claim 2, wherein said two side extensions are made of magnetic attractable material and said two engagement means are two engagement grooves indented on said two rear sides of said two side extensions respectively 33 The interlockabe magnetic shelter frame, as recited in claim 32, wherein said two engaging members which are made of magnetic material are protruded from front faces of said two magnetic seats respectively, wherein said two engaging members are arranged to fittedly engage into said two engagement grooves when said shelter frame is mounted in front of said pπmary spectacle frame so as to further interlock said shelter frame with said primary spectacle frame by preventing upward, downward, leftward, and πghtward movements of said shelter frame 34 The interlockable magnetic shelter frame for mounting on the primary spectacle frame, as recited in claim 33. wherein said two side extensions are made of soft-magnetic metal having magnetic attraction ability 35 The interlockable magnetic shelter frame for mounting on the primary spectacle frame, as recited in claim 33. wherein each of said magnetic seats comprises a magnet housing which is made of non-magnetic mateπal and downwardly connected from said respective supporting arm and a magnet mounted in said magnet housing with one magnetic pole thereof arranged to face towards and align with said respective engagement groove of said respective side extension when said shelter frame is mounted in front of said frame body of said pπmary spectacle frame 36 The interlockable magnetic shelter frame for mounting on the primary spectacle frame, as recited in claim 35, wherein said two magnets are made to have a thickness larger than a depth of said magnet housing, wherein a pole end of each of said magnets is frontwardly protruded from said respective magnet housing to form said two engaging member 37 The interlockable magnetic shelter frame for mounting on the pπmary spectacle frame, as recited in claim 34, wherein each of said magnetic seats compπses a magnet housing which is made of non-magnetic mateπal and downwardly connected from said respective supporting arm and a magnet mounted in said magnet housing with one magnetic pole thereof arranged to face towards and align with said respective engagement groove of said respective side extension when said shelter frame is mounted in front of said frame body of said pπmary spectacle frame 38 The interlockable magnetic shelter frame for mounting on the pπmary spectacle frame, as recited in claim 37, wherein said two magnets are made to have a thickness larger than a depth of said magnet housing, wherein a pole end of each of said magnets is frontwardly protruded from said respective magnet housing to form said two engaging member 39 The interlockable magnetic shelter frame for mounting on the pπmary spectacle frame, as recited in any one of claims 33 to 38, wherein each of said engaging members, said magnets and said engagement grooves is in circular shaped, and each of said two magnets having a diameter at least equal to a diameter of said engaging members 40 The interlockable magnetic shelter frame for mounting on the pπmary spectacle frame, as recited in any one of claims 33 to 38, said bndge of said shelter frame is a chp-bndge which is generally in U-shaped and compπses two rearwardly extending side wires adapted for supporting on two ends of said pπmary bridge of said frame body and a downwardly curved clipping wire extending behind said pπmary bπdge, wherein said clip-bπdge is chpped on said pπmary bπdge when said shelter frame is mounted in front of said primary spectacle frame 41 The interlockable magnetic shelter frame for mounting on the pπmary spectacle frame, as recited in claim 39, said bndge of said shelter frame is a chp-bndge which is generally in U-shaped and compπses two rearwardly extending side wires adapted for supporting on two ends of said pπmary bπdge of said frame body and a downwardly curved clipping wire extending behind said pπmary bridge, wherein said chp-bπdge is clipped on said pπmary bπdge when said shelter frame is mounted in front of said pπmary spectacle frame

Inventors: XIAO TONY XIN, XIAO, TONY, XIN
Applicants: XIAO TONY XIN, XIAO, TONY, XIN
Application year: 2000
Main classification: G02C9
IPC codes: G02C1, G02C9