A screwless glasses hinge
Through the design of hinge hook and rotating groove, combined with the chain shaft with the middle convex, the problem of insufficient stability and durability of traditional glasses hinges is solved, and a screwless glasses hinge with high strength and long life is achieved, ensuring the hinge Stable connection and ease of use.
Patent Information
- Application Number
- CN201910266217.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2019-04-03
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2039-04-03
AI Technical Summary
Traditional glasses hinges are fixed by bolts or welding, which have poor stability and durability, and screwless glasses hinges have complex connections and are prone to failure and inconvenient operation.
A screwless glasses hinge is designed, through the cooperation of the hinge hook and the rotating groove, the chain shaft with the intermediate convex part connects the first and second members. The hinge hook rotates in the rotating groove to achieve a folding or unfolding shape, and passes the convex The design of the lifting and grooves sends out an early warning signal to ensure stable connection.
It has achieved good stability, welding-free screwless glasses hinge, which has high strength and long service life, is convenient to operate and not easy to fail.
Smart Images
Figure CN109975993B_ABST
Abstract
Description
Technical Field
[0001] The invention discloses a screwless glasses hinge, which belongs to the technical field of glasses hinge device manufacturing according to the International Patent Classification (IPC). Background Art
[0002] Traditional glasses are mostly fixed together with hinges on the frame feet by bolts (screws) or welding. Both types of hinges are not stable and durable. Welded hinges are fixed and cannot be disassembled. Although bolted hinges can be disassembled, the bolts used in glasses are small objects and must be assembled or disassembled with the help of special tools, which is inconvenient to operate.
[0003] At present, there are records of screwless eyeglass hinges in the literature, but the connection of the components is complicated. For example, Chinese document CN207216187U discloses a screwless eyeglass hinge, including an H-shaped card, a connecting column and a connecting piece with a hook; the first opening portion of the H-shaped card is fixedly connected to the frame of the glasses, the hookless edge of the connecting piece with a hook is fixedly connected to the temple of the glasses, and the second opening portion of the H-shaped card is hinged to the full-covered hook of the connecting piece with the hook through the connecting column; barbs are provided on both sides of the opening of the second opening portion, and two slots corresponding to the barbs are provided at both ends of the connecting column; the connecting column is inserted into the full-covered hook and the connecting column is rotatably connected to the full-covered hook, and the two sides of the opening of the second opening portion of the H-shaped card are inserted into the two slots corresponding to the connecting column; part of the hook body of the full-covered hook extends outward along both ends in the longitudinal direction to form a half-covered hook for limiting the rotation angle of the H-shaped card. Another Chinese document CN203894486U discloses a screwless eyeglass hinge structure, comprising two parallel supporting legs, an elastic buckle is provided between the two parallel supporting legs, one end of the two parallel supporting legs and the elastic buckle are both provided on the frame of the eyeglasses, and the other ends of the three extend toward the temples of the eyeglasses, and the elastic buckle forms an arc buckle inwardly; a through hole is provided at the proximal end of the temple, and an axis core is formed between the through hole and the end of the temple; during assembly, the elastic buckle is inserted through the through hole of the temple, so that the axis core of the temple is inserted into the arc buckle of the elastic buckle, thereby connecting the temple to the frame. In this document, the axis core rotates between the supporting leg and the elastic buckle, which requires the elastic buckle to have a high elastic performance, otherwise, the hinge is prone to failure after the axis core rotates for a certain period of time. Summary of the invention
[0004] In view of the deficiencies in the prior art, the present invention provides a screwless glasses hinge with good stability and long service life.
[0005] To achieve the above object, the present invention is achieved through the following technical solutions:
[0006] A screwless eyeglass hinge comprises a first component and a second component, wherein hinge hooks are provided at the joint ends of the two components and engage with each other, a rotation groove is provided inside the hinge hooks of the first component and the second component, openings are provided on the hinge hooks of the first component and the second component respectively, a chain shaft fits in the opening, and the chain shaft radially extends into the rotation groove, and the hinge hooks of the first component and the second component rotate in the corresponding matching rotation groove to realize the folding or unfolding state of the hinge.
[0007] Furthermore, the opening on the hinge hook of the first component and the opening on the hinge hook of the second component have different widths, and the chain shaft is provided with a middle convex portion and a ring flat portion corresponding to the two openings, and the ring flat portion surrounds the middle convex portion.
[0008] Furthermore, the chain shaft is a stepped shaft having a larger diameter portion and a smaller diameter portion, the width of the hinge opening of the first component is larger than that of the hinge opening of the second component, the larger diameter portion of the chain shaft fits in the hinge opening of the second component, the smaller diameter portion of the chain shaft stops at the inner walls of the hinges on both sides of the opening of the second component, and the smaller diameter portion of the chain shaft fits in the hinge opening of the first component.
[0009] Furthermore, a protrusion is provided on the inner wall of the rotation groove of the first component, and one or more grooves are provided on the outer wall of the hinge hook of the second component. When the first component and the second component rotate relatively, the protrusions are sequentially engaged with the grooves to send out a warning signal.
[0010] Furthermore, the hinge of the first component is divided into two parts by the opening, and the heads on both sides of the hinge of the first component clamp the middle convex part of the chain shaft to form a rotating shaft when the first component and the second component rotate relative to each other.
[0011] Furthermore, the hinge hook of the first component includes a front arc section, a straight section and a head, and the hinge hook of the second component includes a front straight section and a hook portion, wherein the straight section of the first component corresponds to the front straight section of the second component in the unfolded state.
[0012] Furthermore, the head of the first component corresponds to the middle convex portion of the chain shaft, and the head of the first component, the middle convex portion of the chain shaft and the hook portion of the second component act to achieve relative rotation.
[0013] The present invention is a welding-free and screw-free eyeglass hinge, in which a first component and a second component are connected and fixed by a chain shaft with a middle convex portion, and the hinge hooks of the first component and the second component are engaged with each other and rotate in corresponding matching rotating grooves to realize the folding or unfolding state of the hinge. Since the hinge hook of the present invention has a certain width and thickness, it rotates with the help of the chain shaft with a convex portion, and has the advantages of good stability, high strength, long service life, etc. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of an embodiment of the present invention.
[0015] Figure 2It is an expanded side view of an embodiment of the present invention.
[0016] Figure 3 It is an exploded view of an embodiment of the present invention.
[0017] Figure 4 It is a schematic diagram of an embodiment of the present invention.
[0018] Figure 5 This is a folded side view of an embodiment of the present invention
[0019] Figure 6 It is a schematic diagram of the cooperation between the first component and the chain shaft of the present invention.
[0020] Figure 7 It is a schematic diagram of the cooperation between the second component and the chain shaft of the present invention. DETAILED DESCRIPTION
[0021] The present invention will be further described below in conjunction with the accompanying drawings:
[0022] Example: See Figures 1 to 7 A screwless eyeglass hinge comprises a first component 1 and a second component 2. The joint ends of the two components are provided with hinge hooks 11 and 21 and engage with each other. The inner sides of the hinge hooks of the first component 1 and the hinge hooks of the second component 2 are rotation grooves 102 and 202. The hinge hooks of the first component 1 and the second component 2 are respectively provided with hinge hook openings 101 and 201. The opening is opened in the direction extending from the outer end of the hinge hook to the connection between the hinge hook and the first component or the second component, that is, in the longitudinal extension or length direction when the first component 1 and the second component 2 are unfolded. A chain shaft 3 is matched in the opening, and the chain shaft 3 radially extends into the rotation groove. The hinge hook 11 of the first component 1 and the hinge hook 12 of the second component rotate in the corresponding matching rotation groove to realize the hinge folding or unfolding state. The opening on the hinge of the first member 1 is opened at the middle position of the width extension direction of the first member, and the opening on the hinge of the second member 2 is opened at the middle position of the width extension direction of the second member. The width of the hinge opening 101 of the first member 1 is different from that of the hinge opening 201 of the second member 2. The chain shaft 3 is provided with a middle convex portion 32 and a ring flat portion 31 corresponding to the opening, and the ring flat portion 31 surrounds the middle convex portion 32. The chain shaft 3 is a stepped shaft, and has a larger diameter portion and a smaller diameter portion on the stepped shaft. The width of the hinge opening 101 of the first member 1 is greater than that of the hinge opening 201 of the second member 2. The larger diameter portion of the chain shaft 3 is matched with the hinge opening 201 of the second member, and the smaller diameter portion of the chain shaft 3 is stopped at the inner walls of the hinges on both sides of the opening of the second member 2. The smaller diameter portion of the chain shaft 3 is matched with the hinge opening 101 of the first member 1. The hinge hook of the first component 1 is divided into two parts, namely the upper and lower or front and rear hook parts, by an opening. The heads of the two parts of the hook are located on both sides of the opening. The heads on both sides of the hinge hook of the first component 1 clamp the middle convex part 32 of the chain shaft to form a rotating axis when the first component and the second component rotate relative to each other.
[0023] See also Figure 1 , Figure 2 and Figure 5 The inner wall of the rotating groove of the first member 1 is provided with a protrusion 103, which is actually a convex ridge or a convex strip extending along the width of the first member, and the outer wall of the hinge hook of the second member 2 is provided with one or more grooves 203, such as Figure 7 As shown, there are two grooves 203 of the second component 2 and they are along the width direction or the axial direction of the chain shaft. When the first component and the second component rotate relative to each other, the protrusions 103 engage with the grooves 203 in turn and then send out a warning signal. The multi-groove engagement forms a gear design to remind the user which gear to adjust to or which gear to end. The design of the warning signal prevents situations such as excessive rotation that affect the performance of the component.
[0024] See also Figure 3 The hinge hook 11 of the first member 1 includes a front arc section 111, a straight section 112 and a head 113, and the hinge hook 21 of the second member 2 includes a front straight section 211 and a hook portion 212, wherein the straight section 112 of the first member 1 and the front straight section 211 of the second member 2 correspond to each other in the unfolded state. The head 113 of the first member 1 corresponds to the middle convex portion 32 of the chain shaft 3, and the head 113 of the first member, the middle convex portion 32 of the chain shaft and the hook portion 212 of the second member 2 realize relative rotation.
[0025] The first component of the present invention is connected to the frame or used as a pile head, and the second component is connected to the temple or directly extended to form the temple. When in use, the first and second components are connected and fixed by a chain shaft with a middle convex portion. Figure 1 , Figure 2 The figure shows a schematic diagram of hinge expansion, at which the straight section of the first member and the front straight section of the second member cooperate to limit the position; Figure 4 , Figure 5 The figure shows a schematic diagram of hinge folding, in which the second member rotates relative to the first member. During the rotation process, when the groove 203 of the second member is locked with the protrusion 103 of the first member, a warning signal of a click is issued. When the hinge is fully rotated, the front straight section of the second member matches with the entrance of the rotation groove of the first member. At the same time, the head end of the hook of the second member turns to the bottom of the rotation groove of the first member. When the folding is terminated, the outer walls of the first and second members generally form an angle of 90 degrees. In the right folding state of the hinge, the head of the hook of the first member always presses against the inner side of the hook of the second member.
[0026] The above records are only embodiments of the present invention. Any modification or change made by a person familiar with the present technology using the present invention shall fall within the patent scope claimed by the present invention and shall not be limited to those disclosed in the embodiments.
Claims
1. A screwless glasses hinge, characterized in that: The hinge comprises a first component and a second component, the joint ends of the two components are provided with hinge hooks and are engaged with each other, the inner sides of the hinge hooks of the first component and the second component are rotation grooves, the hinge hooks of the first component and the second component are respectively provided with openings, a chain shaft is matched in the opening, the chain shaft radially extends into the rotation groove, the hinge hook of the first component and the hinge hook of the second component rotate in the corresponding matching rotation groove to realize the hinge folding or unfolding state; The opening on the hinge hook of the first member and the opening on the hinge hook of the second member have different widths, and the chain shaft is provided with a middle convex portion and a ring flat portion corresponding to the two openings, and the ring flat portion surrounds the middle convex portion; the middle convex portion is a smaller diameter portion of the chain shaft, and the ring flat portion is a larger diameter portion of the chain shaft; The chain shaft is a stepped shaft, the hinge opening width of the first member is larger than the hinge opening of the second member, the flat ring portion of the chain shaft is matched with the hinge opening of the second member, the middle convex portion of the chain shaft is stopped by the inner walls of the hinges on both sides of the opening of the second member, and the middle convex portion of the chain shaft is matched with the hinge opening of the first member; The hinge hook of the first member includes a front arc section, a straight section and a head, and the hinge hook of the second member includes a front straight section and a hook portion, wherein the straight section of the first member and the front straight section of the second member are correspondingly matched in the unfolded state; The head of the first member corresponds to the middle convex portion of the chain shaft, and the head of the first member, the middle convex portion of the chain shaft and the hook portion of the second member realize relative rotation; The inner wall of the rotation groove of the first component is provided with a protrusion, and the outer wall of the hinge hook of the second component is provided with one or more grooves, and the grooves extend along the axial direction of the chain shaft. When the first component and the second component rotate relative to each other, the protrusions are sequentially engaged with the grooves to send out an early warning signal, and the engagement of the protrusions and the grooves forms a gear setting; When the hinge is in an unfolded or folded state, the hinge hook head of the first component always presses against the inner side of the hook portion of the second component.
2. The screwless eyeglass hinge according to claim 1, characterized in that: The hinge of the first component is divided into two parts by an opening, and the heads on both sides of the hinge of the first component clamp the middle convex part of the chain shaft to form a rotating shaft when the first component and the second component rotate relative to each other.