A type of nose pad-less glasses

Abstract

This invention discloses a nose-pad-free pair of glasses, comprising a front portion and a pair of temples, the temples being connected to the left and right sides of the front portion of the glasses respectively. Each temple includes a first leg and a second leg. The first leg connects to the front portion of the glasses; the second leg is mounted on the first leg, located on the side of the wearer's head. The two second legs are mirror-symmetrical, each with an arc-shaped structure capable of elastic deformation, extending from the area in front of the wearer's ear, over the ear, and behind the ear. When worn, the wearer's head is positioned between the two second legs, which, through elastic deformation, conform to the sides of the wearer's head, clamping the head from both sides. This clamping action secures the glasses to the wearer's head, detaching them from the bridge of the nose, adapting to different head shapes, eliminating the need for manual adjustment, and making them easy to use.

Description

Technical Field

[0001] This invention relates to the technical field of eyeglasses, and particularly to a type of eyeglasses without nose pads. Background Technology

[0002] Eyeglasses typically consist of a front section, temples, and nose pads. The front section is used to mount the lenses. When worn, the overall weight of the front section is supported on the wearer's nose bridge by the nose pads, while the two temples provide auxiliary clamping force from both sides of the head to keep the glasses stable.

[0003] However, the weight of traditional glasses is mainly borne by the bridge of the nose. Long-term wear can easily cause pressure marks and pain on the bridge of the nose, resulting in discomfort. For some wearers with nasal bridge defects, traditional glasses cannot provide effective support and are inconvenient to wear. Secondly, in sports scenarios, traditional glasses are prone to wobbling, shifting, or even falling off, exhibiting poor dynamic stability. To solve this problem, nose-pad-less glasses have emerged in the current technology. These glasses usually have an adjustable clamping device on the front of the temples, which clamps from the sides of the forehead or head, detaching the front of the glasses from the bridge of the nose and preventing pressure on the bridge. However, existing nose-pad-less glasses have the following drawbacks: they require manual adjustment according to the individual's head shape, which is cumbersome; they have poor adaptability and cannot meet the needs of wearers with different head shapes; and their structure is relatively complex. Summary of the Invention

[0004] The purpose of this invention is to provide a nose pad-free eyeglasses, and the technical problem to be solved is to provide a nose pad-free eyeglasses with a simple structure.

[0005] To achieve the above objectives, the solution of the present invention is: a nose pad-less eyeglass, comprising a front part of the eyeglass and a pair of temples, wherein the pair of temples are respectively connected to the left and right sides of the front part of the eyeglass; The temples of the glasses consist of a first temple and a second temple; The first leg is used to connect to the front of the glasses; The second leg is installed on the first leg and located on the side of the wearer's head. The two second legs are mirror-symmetrical and have an arc-shaped structure that can be elastically deformed. They extend from the area in front of the wearer's ear, over the ear, and behind the ear. When worn, the wearer's head is located between the two second legs. The two second legs fit into the sides of the wearer's head through elastic deformation, clamping the wearer's head from both sides.

[0006] Furthermore, the middle part of the second leg is pivotally connected to the first leg via a pivot shaft. The pivot shaft extends vertically, allowing the second leg to swing inward and outward relative to the first leg around the shaft. When the front end of the second leg swings outward relative to the first leg toward the outside of the glasses, the rear end of the second leg swings inward toward the inside of the glasses, or when the rear end of the second leg swings outward relative to the first leg toward the outside of the glasses, the front end of the second leg swings inward toward the inside of the glasses, to accommodate different head circumference sizes.

[0007] Furthermore, the second leg is pivotally connected to the inside of the first leg, the first leg forms a pivot groove with the opening of the pivot groove facing the second leg, and the second leg protrudes outward to form a pivot part, which pivotally engages in the pivot groove, allowing the second leg to swing inward and outward around the axis.

[0008] Furthermore, the rear end of the first leg protrudes inward toward the inside of the eyeglasses to form a mounting portion, a pivot groove is formed on the mounting portion, the mounting portion extends back and forth, and a first abutting surface is formed on the side of the pivot groove near the front of the eyeglasses, and a second abutting surface is formed on the side of the pivot groove away from the front of the eyeglasses. After the second leg swings inward and outward around the axis, the second leg abuts against the first abutting surface, or the second leg abuts against the second abutting surface, so as to limit the pivot angle of the second leg.

[0009] Furthermore, the distance between the two pivots is 129mm to 133mm, and the distance between the pivot and the front end of the eyeglasses is 102mm to 104mm.

[0010] Furthermore, the distance between the front ends of the two second legs is at least 107mm.

[0011] Furthermore, the portion of the second leg located near the front of the glasses on the pivot axis is the first clip, and the portion of the second leg located away from the front of the glasses on the pivot axis is the second clip. Along the length of the second leg, the length of the first clip is less than the length of the second clip.

[0012] Furthermore, the front end of the second leg extends towards the front of the glasses to the side of the wearer's forehead, and the end of the second leg extends away from the front of the glasses to the back of the wearer's head. The longitudinal dimension of the second leg gradually increases from the ear towards the front of the glasses to increase the contact area with the head.

[0013] Furthermore, the first leg can elastically deform to provide pressure to the second leg; Alternatively, the front of the glasses could be elastically deformed to provide pressure to the second temple; Alternatively, both the first leg and the front of the glasses can be elastically deformed, and the amount of elastic deformation of the first leg is less than the amount of elastic deformation of the front of the glasses.

[0014] Furthermore, the front of the glasses is a one-piece molded lens, which is in the form of a thin sheet; The second leg is a one-piece molded structure.

[0015] Furthermore, a pad made of soft material is provided on the inner side of the second leg to fit against the wearer's head.

[0016] Furthermore, after the two second legs clamp from both sides of the wearer's head, the front of the glasses disengages from the nose, creating a gap.

[0017] After adopting the above solution, the beneficial effects of the present invention are as follows: (1) The second leg is curved and can be elastically deformed. The second leg extends from the area in front of the wearer’s ear, through the area above the ear, to the area behind the ear. When worn, the two second legs fit the wearer’s head through their own elastic deformation and clamp the wearer’s head from both sides. The clamping force is firm, so that the glasses are clamped on the wearer’s head and are not easy to shift or fall off. The front of the glasses is separated from the bridge of the nose and does not need to contact the bridge of the nose. The overall weight of the glasses is no longer borne by the bridge of the nose. Secondly, the arc-shaped elastic deformation structure automatically adjusts according to the wearer's head size, distributing the clamping force along the curve of the wearer's head, avoiding local pressure concentration, improving the wearer's comfort, adapting to different head shapes, and without any additional structure, it does not require manual adjustment during use, making it easy to use.

[0018] (2) The second leg pivots relative to the first leg through a pivot axis. When the wearer wears glasses, the head will push the back of the second leg outward, while the front will pivot inward to form an adaptive clamping. For wearers with smaller head circumferences, the amount of the head pushing the back of the second leg outward is smaller, which reduces the inward clamping force of the front of the second leg and achieves flexible clamping. For wearers with larger head circumferences, the back of the second leg will push outward, and through the pivot structure, the inward pivoting of the front of the second leg will increase, increasing the clamping force and forming an adaptive effect of dynamic clamping. This significantly improves the anti-slip performance and forms a clamping effect that is tight in the front and loose in the back. In sports scenarios, the pivot structure can counteract the outward force and achieve adaptive adjustment. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 This is a top view of the structure of the present invention.

[0021] Figure 3 This is an exploded structural diagram of the present invention.

[0022] Figure 4 This is an exploded structural diagram of the second leg of the present invention.

[0023] Figure 5This is a cross-sectional structural diagram of the second leg of the present invention.

[0024] Figure 6 This is a schematic diagram of the structure of the rear end of the second leg of the present invention being deflected outward.

[0025] Figure 7 This is a schematic diagram of the structure of the rear end of the second leg of the present invention being deflected inward.

[0026] Figure 8 This is a three-dimensional structural diagram of the pivot groove of the present invention. Figure 1 .

[0027] Figure 9 This is a three-dimensional structural diagram of the pivot groove of the present invention. Figure 2 .

[0028] Figure 10 This is a front structural diagram of the first leg of the present invention.

[0029] Figure 11 yes Figure 10 A cross-sectional structural diagram of section AA.

[0030] Figure 12 yes Figure 10 A magnified structural diagram of part B.

[0031] Figure 13 This is a three-dimensional structural diagram of the pivot shaft of the present invention.

[0032] Figure 14 This is a cross-sectional structural diagram of the pivot shaft fitting in the pivot hole according to the present invention.

[0033] Label Explanation: 100-Eyeglasses, 1-Front of eyeglasses, 2-Template, 3-First temple, 4-Second temple, 5-Pivot shaft, 6-Lens, 7-Gasket, 8-Pivot hole, 9-Guide surface, 31-Pivot groove, 32-Mounting part, 33-Arc groove, 34-First side wall, 35-Second side wall, 41-Pivot part, 42-First clamping part, 43-Second clamping part, 44-Pivot seat, 51-First shaft end, 52-Second shaft end, 53-Pressure inclined surface, 71-First gasket, 72-Second gasket, 81-First pivot hole, 82-Second pivot hole, 321-First abutment surface, 322-Second abutment surface. Detailed Implementation

[0034] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] In the description of this application, it should be understood that the terms "upper", "lower", "left", "right", "middle", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0036] like Figures 1-14 As shown, the present invention provides a nose pad-less eyeglass. The eyeglass 100 includes a front part 1 and a pair of temples 2. The pair of temples 2 are respectively connected to the left and right sides of the front part 1. The front part 1 is located in front of the wearer and is used to install lenses 6. The lenses 6 can be frameless lenses or framed lenses, without specific limitations.

[0037] Key points combined Figure 1 As shown, the temple 2 includes a first temple 3 and a second temple 4. The first temple 3 is used to connect with the front part 1 of the glasses, specifically pivotally connected to the front part 1 of the glasses, and can be unfolded or folded relative to the front part 1 of the glasses. This is prior art and will not be described in detail. The second temple 4 is mounted on the first temple 3 and is located on the side of the wearer's head. The two second temples 4 are mirror-symmetrical from left to right. The two second temples 4 are each arc-shaped and elastically deformable, and extend from the area in front of the wearer's ear, over the ear, and behind the ear. Specifically, the front end of the second temple 4 extends towards the front part 1 of the glasses to the wearer's forehead. On the side, near the temple, the rear end of the second leg 4 extends away from the front part 1 of the glasses to the back of the wearer's head, near the occipital bone. When worn, the wearer's head is positioned between the two second legs 4. The two second legs 4 elastically deform and fit against the sides of the wearer's head, clamping the wearer's head from both sides. After the two second legs 4 clamp the wearer's head from both sides, the front part 1 of the glasses disengages from the nose, forming a gap. This allows the glasses 100 to be worn on the head by clamping the two second legs 4, without the need for support of the bridge of the nose.

[0038] Key points combined Figure 2 As shown, the second leg 4 is integrally formed, and its middle part is pivotally connected to the first leg 3 through a pivot shaft 5. The pivot shaft 5 extends vertically, allowing the second leg 4 to swing inward and outward relative to the first leg 3 around the shaft. When the front end of the second leg 4 swings outward relative to the first leg 3 toward the outside of the glasses 100, the rear end of the second leg 4 swings inward toward the inside of the glasses 100, or when the rear end of the second leg 4 swings outward relative to the first leg 3 toward the outside of the glasses 100, the front end of the second leg 4 swings inward toward the inside of the glasses 100, so as to accommodate different head circumference sizes.

[0039] Key points combined Figure 3As shown, the portion of the second leg 4 located near the front part 1 of the glasses on the pivot axis 5 is the first clip 42, and the portion of the second leg 4 located away from the front part 1 of the glasses on the pivot axis 5 is the second clip 43. The end of the first clip 42 abuts against the side of the wearer's forehead, near the temple area, and the end of the second clip 43 abuts against the back of the wearer's head, near the occipital bone. Due to the differences in head circumference among different groups of people, the horizontal head circumference fluctuates from 183mm to 226mm, with a difference of 43mm, and the vertical head circumference fluctuates from 162mm to 198mm, with a difference of 36mm. In both methods of measuring head circumference, the difference in head circumference among different groups of people exceeds 30mm. In this specific embodiment, the head circumference range covered by the pivot adjustment of the second leg 4 is 183mm to 226mm.

[0040] The distance between the two sides of an average adult's forehead is greater than 120mm, generally between 120mm and 150mm. In this specific embodiment, the distance L3 between the front ends of the two second legs 4 is at least 107mm, that is, the distance between the front ends of the second legs 4 is less than the minimum distance between the two sides of an adult's forehead. After wearing, the front ends of the two second legs 4 are spread open and clamped on both sides of the wearer's forehead to ensure that the first clamp 42 can clamp the wearer's head from both sides, so that the glasses 100 do not need to contact the bridge of the nose.

[0041] Preferably, the first leg 3 can elastically deform to provide pressure to the second leg 4; or the front part of the glasses 1 can elastically deform to provide pressure to the second leg 4; or both the first leg 3 and the front part of the glasses 1 can elastically deform, and the elastic deformation of the first leg 3 is less than the elastic deformation of the front part of the glasses 1; so that the distance between the front ends of the second leg 4 has a larger adjustment range to accommodate different head circumference sizes, and applies pressure to the second leg 4 through its own elastic deformation to press against the head.

[0042] Key points combined Figure 3 As shown, the front part 1 of the glasses is a one-piece molded lens 6. The lens 6 is thin and can be elastically deformed. Under the same external force, the elastic deformation of the first temple 3 is less than that of the front part 1 of the glasses. In actual use, when the two temples 2 are pushed outward, the front part 1 of the glasses undergoes a larger elastic deformation, while the first temple 3 undergoes a smaller elastic deformation. This helps the front part 1 of the glasses to return to its original position, thereby transmitting the elastic force to the wearer's head and increasing the clamping force of the second temple 4.

[0043] In this specific embodiment, the distance L1 between the two pivot shafts 5 is 129mm to 133mm, and the distance L2 between the pivot shaft 5 and the front end of the eyeglasses 1 is 102mm to 104mm. This size represents the size of the eyeglasses 100 in its natural state, which is the initial size when not worn on the head. The distance between the forehead and the ear is approximately 105mm to 115mm. mm, that is, in this application, the pivot shaft 5 is close to the front of the ear. Along the length direction of the second leg 4, the length dimension of the first clip 42 is smaller than the length dimension of the second clip 43. According to the principle of the lever that saves effort, the first clip 42 has an amplified clamping force, which improves the support strength of the first clip 42 and makes it more sensitive to changes in head circumference. When the head circumference is small, since the distance between the front ends of the two second legs 4 is smaller than the distance between the two sides of the wearer's forehead, the first clip 42 can still generate a clamping force for the small head circumference. When the head circumference is large, the second clip 43 swings outward and the first clip 42 pivots inward, thereby generating a greater clamping force and improving the anti-slip effect. In conjunction with the second leg 4, the whole can be elastically deformed, so that the glasses 100 can adapt to different head shapes.

[0044] To improve the comfort of wearing the head, the longitudinal dimension of the second leg 4 gradually increases from the ear towards the front part 1 of the glasses, so as to increase the contact area with the head, increase the contact area between the front end of the first clip 42 and the side of the forehead, and make the clamping force more evenly distributed in the longitudinal direction, avoiding excessive local pressure.

[0045] Key points combined Figure 3 As shown, a pad 7 is provided on the inner side of the second leg 4. The pad 7 is made of soft material and is used to fit against the wearer's forehead. Specifically, the pad 7 includes a first pad 71 and a second pad 72. The first pad 71 is located on the inner side of the first clip 42, and the second pad 72 is located on the inner side of the second clip 43 to improve the wearer's comfort. The pad 7 can be made of silicone, TPU material or sponge material, without specific limitations.

[0046] Key points combined Figure 4 As shown, the second leg 4 is pivotally connected to the inside of the first leg 3, i.e., the side facing the wearer's head. The first leg 3 forms a pivot groove 31, the opening of which faces the second leg 4. The second leg 4 protrudes outward to form a pivot part 41, which pivotally engages within the pivot groove 31, allowing the second leg 4 to swing inward and outward around an axis. Specifically, the pivot part 41 forms the pivot shaft 5, which can be integrally injection molded or fixedly installed on the pivot part 41. The top and bottom walls of the pivot groove 31 respectively form mounting holes for inserting both ends of the pivot shaft 5. The pivot part 41 is placed into the pivot groove 31, and both ends of the pivot shaft 5 are inserted into the mounting holes, allowing the second leg 4 to swing inward and outward relative to the first leg 3.

[0047] Key points combined Figure 5As shown, the rear end of the first leg 3 protrudes towards the inside of the glasses 100 to form a mounting portion 32. A pivot groove 31 is formed on the mounting portion 32. The mounting portion 32 extends back and forth, and a first abutting surface 321 is formed on the side of the pivot groove 31 near the front part 1 of the glasses, and a second abutting surface 322 is formed on the side of the pivot groove 31 away from the front part 1 of the glasses. After the second leg 4 swings inward and outward around the axis, the second leg 4 abuts against the first abutting surface 321, or the second leg 4 abuts against the second abutting surface 322, so as to limit the pivoting angle of the second leg 4.

[0048] Different wearers have different head contours. For wearers whose heads are narrower at the front and wider at the back, such as... Figure 6 As shown, when wearing it, the rear end of the second leg 4 is spread outwards, causing the front end of the second leg 4 to rotate inwards, thereby increasing the clamping force; for wearers with a wider front of the head, such as Figure 7 As shown, when wearing it, the front end of the second leg 4 is spread outwards, and the rear end of the second leg 4 is rotated inwards, thereby increasing the clamping force; of course, it can also be adjusted to suit wearers with other head circumferences. like Figures 8-9 As shown, the two opposite side walls of the pivot groove 31 are respectively provided with pivot holes 8 corresponding to each other. The two pivot holes 8 extend vertically and are corresponding in position. The pivot shaft 5 extends vertically, and the two ends of the pivot shaft 5 are respectively used for rotatable engagement in the two pivot holes 8. Among them, the opposite sides of the groove opening of the pivot groove 31 are respectively provided with guide surfaces 9. The two guide surfaces 9 extend from the two pivot holes 8 toward the groove opening of the pivot groove 31 and expand outward at an angle (e.g., Figure 11 As shown), the two ends of the pivot shaft 5 are respectively used to abut against the two guide surfaces 9. The side wall of the pivot groove 31 can be elastically bent and deformed. When the two ends of the pivot shaft 5 abut against the two guide surfaces 9 respectively, the hand presses the second leg 4, so that the pivot shaft 5 applies pressure to the side wall of the pivot groove 31, causing the side wall of the pivot groove 31 to be elastically bent, and then the two ends of the pivot shaft 5 slide into the corresponding pivot holes 8 along the corresponding guide surfaces 9 respectively.

[0049] Further focus on Figure 8 As shown, the two opposite side walls of the pivot shaft 5 are the first side wall 34 and the second side wall 35, respectively. The two ends of the first side wall 34 are extended outward, increasing its length while keeping its thickness constant, thereby improving the elastic deformation capacity of the first side wall 34. This makes the pivot groove 31 have a convex shape. The second side wall 35 has a constant length and can also be elastically deformed, but the elastic deformation degree of the first side wall 34 is greater than that of the second side wall 35. The pivot shaft 5 applies pressure to the first side wall 34, causing the first side wall 34 to bend away from the second side wall 35, so that one end slides into the corresponding pivot hole 8 along the guide surface 9, and the other end also slides into its corresponding pivot hole 8. Preferably, the two sides of the first side wall 34 have an arc-shaped structure, which improves the ductility of the first side wall 34 during deformation.

[0050] Furthermore, arc-shaped grooves 33 are formed on opposite sides of the opening of the pivot groove 31. The arc-shaped grooves 33 connect to the pivot hole 8. The arc-shaped grooves 33 have an arc-shaped structure along the sidewall extension direction of the pivot groove 31 and extend arc-shaped towards the pivot hole 8. A guide surface 9 is formed on the bottom wall of the arc-shaped groove 33, making the guide surface 9 have an arc-shaped structure (e.g., Figure 11 (As shown).

[0051] Preferably, the first leg 3 is made of nylon (PA12) material, which has high strength and toughness, and can be integrally molded by injection molding. The second leg 4 is made of PPSU (polyphenylene sulfone) material, which is an amorphous polymer and belongs to a new type of heat-resistant engineering plastic. In sheet form, it has strong rigidity and its elastic modulus is close to 2.4–2.6 GPa. It has small deformation under stress and strong resilience. Of course, in other embodiments, it can also be made of thin elastic sheet.

[0052] Key points combined Figure 12 As shown, the length of the first sidewall 34 is L4, the length of the second sidewall 35 is L5, the distance between the first sidewall 34 and the second sidewall 35 is d, and the height of the pivot shaft 5 is H, wherein: ; ; .

[0053] Preferably, the length L4 of the first sidewall 34 is 8.0 mm, the length L5 of the second sidewall 35 is 4.8 mm, the distance d between the first sidewall 34 and the second sidewall 35 is 2.3 mm, and the height H of the pivot shaft 5 is 4.55 mm.

[0054] Key points combined Figure 11 As shown, the two pivot holes 8 are the first pivot hole 81 and the second pivot hole 82, respectively. The first pivot hole 81 is formed on the first side wall 34, and the second pivot hole 82 is formed on the second side wall 35. The first pivot hole 81 is a through hole, and the second pivot hole 82 is a blind hole. Specifically, the first side wall 34 and the second side wall 35 of the pivot groove 31 are vertically aligned. The second pivot hole 82 is located directly above the first pivot hole 81, and the inner side wall of the pivot groove 31 extends inward to the rear of the pivot hole 8, beyond the location of the pivot hole 8.

[0055] Key points combined Figure 13As shown, the second leg 4 protrudes outward to form a pivot seat 44. The pivot shaft 5 is integrally formed on the pivot seat 44 and protrudes from the top and bottom ends of the pivot seat 44 respectively. The outer diameter of the pivot seat 44 is larger than the outer diameter of the pivot shaft 5. After the pivot shaft 5 is inserted into the pivot hole 8, the pivot seat 44 is inserted into the pivot groove 31 and is limited between the top and bottom walls of the pivot groove 31. The end of the pivot shaft 5 protruding from the bottom end of the pivot seat 44 is the first shaft end 51, which fits into the first pivot hole 81. The end of the pivot shaft 5 protruding from the top end of the pivot seat 44 is the second shaft end 52, which fits into the second pivot hole 82. Preferably, the height of the pivot seat 44 is 2.15 mm, and the heights of the first shaft end 51 and the second shaft end 52 are both 1.2 mm.

[0056] In this specific embodiment, both ends of the pivot shaft 5 are spherical structures, which, together with the arc-shaped guide surface 9, allow it to slide more smoothly into the pivot hole 8.

[0057] To facilitate pressure application, a pressure ramp 53 is formed at one end of the pivot shaft 5. The pressure ramp 53 is inclined and is used to abut against the first side wall 34 to increase the contact area between the pivot shaft and the guide surface 9. Specifically, the pressure ramp 53 is formed at the first shaft end 51 and faces the pivot groove 31.

[0058] Key points combined Figure 14 As shown, after the two ends of the pivot shaft 5 are respectively inserted into the two pivot holes 8, the first shaft end 51 is inserted into the first pivot hole 81, the second shaft end 52 is inserted into the second pivot hole 82, and the pivot seat 44 is inserted into the pivot groove 31, which is clearance-fitted with the pivot groove 31 to restrict the vertical movement of the pivot seat 44. At the same time, the pivot shaft 5 is clearance-fitted with the side wall of the pivot hole 8 to restrict the horizontal movement of the pivot seat 44, so that the pivot shaft 5 can be firmly fitted in the pivot hole 8, not easy to slip off, and the structure is stable.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the design of this case. All equivalent changes made based on the key design features of this case shall fall within the protection scope of this case.

Claims

1. A type of nose-pad-free eyeglasses, characterized in that: It includes a front part (1) of the glasses and a pair of temples (2), with the pair of temples (2) connected to the left and right sides of the front part (1) of the glasses respectively; The temple (2) includes a first temple (3) and a second temple (4); The first leg (3) is used to connect with the front part (1) of the glasses; The second leg (4) is installed on the first leg (3) and located on the side of the wearer's head. The two second legs (4) are mirror symmetrical. The two second legs (4) are respectively arc-shaped and can be elastically deformed. They extend from the area in front of the wearer's ear, through the ear, to the area behind the ear. After wearing, the wearer's head is located between the two second legs (4). The two second legs (4) fit against the sides of the wearer's head through elastic deformation, clamping the wearer's head from both sides.

2. The nose-pad-free glasses as described in claim 1, characterized in that: The middle part of the second leg (4) is pivotally connected to the first leg (3) via a pivot shaft (5). The pivot shaft (5) extends vertically, allowing the second leg (4) to swing inward and outward relative to the first leg (3) around the shaft. When the front end of the second leg (4) swings outward relative to the first leg (3) toward the outside of the glasses (100), the rear end of the second leg (4) swings inward toward the inside of the glasses (100). Or when the rear end of the second leg (4) swings outward relative to the first leg (3) toward the outside of the glasses (100), the front end of the second leg (4) swings inward toward the inside of the glasses (100), in order to accommodate different head circumference sizes.

3. The nose-pad-free glasses as described in claim 2, characterized in that: The second leg (4) is pivotally connected to the inside of the first leg (3). The first leg (3) forms a pivot groove (31), the opening of which faces the second leg (4). The second leg (4) protrudes outward to form a pivot part (41), which pivotally engages in the pivot groove (31), allowing the second leg (4) to swing inward and outward around the axis.

4. The nose-pad-free glasses as described in claim 3, characterized in that: The rear end of the first leg (3) protrudes towards the inside of the eyeglasses (100) to form a mounting part (32). A pivot groove (31) is formed on the mounting part (32). The mounting part (32) extends back and forth, and a first abutting surface (321) is formed on the side of the pivot groove (31) near the front part (1) of the eyeglasses, and a second abutting surface (322) is formed on the side of the pivot groove (31) away from the front part (1) of the eyeglasses. After the second leg (4) swings inward and outward around the axis, the second leg (4) abuts against the first abutting surface (321) or the second leg (4) abuts against the second abutting surface (322) to limit the pivot angle of the second leg (4).

5. The nose-pad-free glasses as described in claim 2, characterized in that: The distance between the two pivot shafts (5) is 129mm to 133mm, and the distance between the pivot shaft (5) and the front end of the eyeglasses (1) is 102mm to 104mm.

6. The nose-pad-free glasses as described in claim 2, characterized in that: The distance between the front ends of the two second legs (4) is at least 107 mm.

7. The nose-pad-free glasses as described in claim 2, characterized in that: The part of the second leg (4) located near the front part (1) of the glasses on the pivot (5) is the first clip (42), and the part of the second leg (4) located away from the front part (1) of the glasses on the pivot (5) is the second clip (43). Along the length direction of the second leg (4), the length of the first clip (42) is less than the length of the second clip (43).

8. The nose-pad-free glasses as described in claim 1, characterized in that: The front end of the second leg (4) extends toward the front part (1) of the glasses to the side of the wearer's forehead, and the end of the second leg (4) extends toward the back of the wearer's head in a direction away from the front part (1) of the glasses. The longitudinal dimension of the second leg (4) gradually increases from the ear toward the front of the glasses (1) to increase the contact area with the head.

9. The nose-pad-free glasses as described in claim 1, characterized in that: The first leg (3) is elastically deformable to provide pressure to the second leg (4); Alternatively, the front part (1) of the glasses can be elastically deformed to provide pressure to the second leg (4); Alternatively, both the first leg (3) and the front part of the glasses (1) can be elastically deformed, and the elastic deformation of the first leg (3) is less than that of the front part of the glasses (1).

10. The nose-pad-free eyeglasses as described in claim 1, characterized in that: The front part (1) of the glasses is a one-piece molded lens (6), and the lens (6) is in the shape of a thin sheet; The second leg (4) is a one-piece molded structure.

11. The nose-pad-free eyeglasses as described in claim 1, characterized in that: The inner side of the second leg (4) is provided with a pad (7), which is made of soft material and is used to fit the wearer's head.

12. The nose-pad-free eyeglasses as described in claim 1, characterized in that: After the two second legs (4) are clamped from both sides of the wearer's head, the front part (1) of the glasses is separated from the nose and a gap is formed.

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