Hinge and eyeglasses

Abstract

The application relates to a hinge and glasses, which comprise a shaft core, a shaft sleeve and an elastic piece. The shaft core comprises a shaft main part, a clamping part arranged at one end of the shaft main part and a stop part arranged at the other end of the shaft main part. The side of the clamping part facing the stop part is provided with a first meshing area extending in the circumferential direction. The clamping part is used for connecting one of the glasses frame and the nose pad. The shaft sleeve is movably sleeved on the shaft main part. The shaft sleeve has a second meshing area extending in the circumferential direction and matched with the first meshing area. The shaft sleeve is used for connecting the other of the glasses frame and the nose pad. The elastic piece is arranged between the stop part and the shaft sleeve. The two ends of the elastic piece abut against the stop part and the shaft sleeve respectively so that the first meshing area and the second meshing area are engaged. When the hinge is installed on the glasses, the requirement of adjusting the nose pad is realized, the influence on the quality of the glasses is small, and the user's wearing experience satisfaction is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of eyeglasses technology, and in particular to a hinge and eyeglasses. Background Technology

[0002] In the eyewear industry, nose pads are an essential accessory for both product shipping and user use. Due to variations in nose bridge height across different regions and populations, eyeglasses are typically designed with multiple frame and nose pad specifications to accommodate different nose bridge heights. Because of the nature of eyeglasses, different sized nose pads or frames must be matched to the corresponding individual's nose bridge, significantly increasing the difficulty of designing and standardizing materials.

[0003] Currently, integrated nose pad solutions for eyeglasses typically offer frames or nose pad designs in various sizes to match different user needs. This makes it impossible to adapt a single nose pad to nose bridges of different shapes and sizes, increasing the difficulty of eyeglass research and development and material standardization. This not only leads to higher costs and a poor user experience but also contradicts environmental protection requirements. Existing adjustable nose pad solutions are relatively large, placing certain requirements on the size of the frame and nose pads, resulting in a significant increase in the overall weight of the eyeglasses and impacting the user experience. Utility Model Content

[0004] Given the significant size and weight limitations of existing adjustable nose pad solutions, it is necessary to provide a hinge and eyeglasses.

[0005] According to one aspect of this application, a hinge for connecting an eyeglass frame and a nose pad is provided, comprising: a shaft core including a shaft body, a snap-fit ​​portion disposed at one end of the shaft body, and a stop portion disposed at the other end of the shaft body, the snap-fit ​​portion having a first toothed area extending circumferentially on one side facing the stop portion, the snap-fit ​​portion being used to connect one of the eyeglass frame and the nose pad; a bushing movably fitted onto the shaft body, the bushing having a second toothed area extending circumferentially and engaging with the first toothed area, the bushing being used to connect the other of the eyeglass frame and the nose pad; and an elastic member disposed between the stop portion and the bushing, the two ends of the elastic member abutting against the stop portion and the bushing respectively to engage the first toothed area and the second toothed area.

[0006] With this configuration, the first and second meshing areas can mesh to limit the relative position between the bushing and the shaft core under the support of the elastic element, thus achieving the hinge's position. Furthermore, when switching positions, the bushing needs to overcome the resistance of the elastic element to disengage from the locking part when rotating circumferentially, thereby achieving the "damping sensation" when the user rotates the nose pad.

[0007] In one embodiment, the stop is detachably mounted to the shaft body for easy assembly and disassembly.

[0008] In one embodiment, the shaft body has a mounting groove, and the stop is a snap ring that engages with the mounting groove.

[0009] In one embodiment, to prevent relative rotation between the hinge and the frame and between the hinge and the nose pad, the outer peripheral surface of the snap-fit ​​portion and / or the outer peripheral surface of the bushing is waist-shaped.

[0010] In one embodiment, in order to ensure a tight fit between the snap-fit ​​part and the bushing and to prevent easy loosening, the snap-fit ​​part has a first abutting surface facing the bushing, and the bushing has a second abutting surface facing the snap-fit ​​part. When the first toothed area engages with the second toothed area, the first abutting surface is in contact with the second abutting surface.

[0011] In one embodiment, to facilitate the user's perception of the adjustment range boundary during adjustment and to avoid damage to the hinge when adjusting beyond the range, the locking part has a first recessed groove located in the first tooth area. The teeth in the first tooth area are fixed to the bottom of the first recessed groove. The axial height of the teeth in the first tooth area is less than or equal to the axial depth of the first recessed groove. The number of teeth in the first tooth area is greater than the number of teeth in the second tooth area, and the tooth pitch of the first tooth area is the same as the tooth pitch of the second tooth area.

[0012] In one embodiment, the bushing has a second recessed groove located in the second tooth region, the teeth in the second tooth region are fixed to the bottom of the second recessed groove, the axial height of the teeth in the second tooth region is less than or equal to the axial depth of the second recessed groove, the number of teeth in the second tooth region is greater than the number of teeth in the first tooth region, and the tooth pitch of the first tooth region is the same as the tooth pitch of the second tooth region.

[0013] In one embodiment, the elastic element is fitted onto the shaft body for easy assembly.

[0014] In one embodiment, the bushing includes a cylinder providing the second meshing area and a positioning block disposed at one end of the cylinder near the elastic member, the elastic member having a positioning groove that engages with the positioning block.

[0015] In summary, this application provides a hinge for connecting a glasses frame and nose pads. Since the elastic element is placed between the stop and the bushing, the first and second toothed areas used to achieve the stop do not need to have elasticity. Therefore, the size of the bushing providing the first toothed area and the core providing the second toothed area can be reduced, and the material requirements are lowered. Thus, the bushing and core can be made of materials with higher hardness and lighter weight. As a result, when the hinge is installed on glasses, the requirement for adjustable nose pads is met while having little impact on the weight of the glasses, thereby greatly improving the user's wearing experience satisfaction.

[0016] According to another aspect of this application, this application also provides eyeglasses, including: a hinge; a frame connected to one of the hinge's core and bushing; and a nose pad connected to the other of the hinge's core or bushing.

[0017] In one embodiment, the eyeglass frame has a first mounting groove, the nose pad has a second mounting groove, the latching part of the hinge is inserted into one of the first mounting groove and the second mounting groove, and the bushing of the hinge is inserted into the other of the first mounting groove and the second mounting groove.

[0018] In summary, the glasses provided in this application use a hinge as the connection structure between the nose pad and the frame. By using a slotted design, the distance between the nose pad and the frame can be reduced while the hinge is installed, avoiding a large gap between the nose pad and the frame after assembly. Overall, the glasses look almost identical to those without the hinge installed. This design achieves adjustable nose pads while also meeting aesthetic requirements, thus improving the user's wearing experience. Attached Figure Description

[0019] Figure 1 A schematic diagram of the hinge structure provided in one embodiment of this application;

[0020] Figure 2 for Figure 1 A schematic diagram of the exploded structure of the hinge shown.

[0021] Figure 3 for Figure 2 Schematic diagram of the central axis;

[0022] Figure 4 for Figure 2 Schematic diagram of the central bushing;

[0023] Figure 5 This application provides a schematic diagram of the structure of eyeglasses in one embodiment.

[0024] Figure 6 for Figure 5 A cross-sectional view of the glasses shown at the hinge;

[0025] Figure 7 for Figure 6 The image shows a cross-sectional view of the glasses at point X;

[0026] Figure 8 for Figure 5 The diagram shown is a structural schematic of the glasses in the second position.

[0027] Figure 9 for Figure 5 The diagram shows the structure of the glasses in the third position.

[0028] Figure label:

[0029] 10. Shaft core; 11. Shaft body; 1101. Mounting groove; 12. Snap-fit ​​part; 1201. First meshing area; 1202. First abutment surface; 13. Stop part;

[0030] 20. Bushing; 201. Second meshing area; 202. Second abutment surface; 21. Cylinder body; 22. Positioning block; 23. Sealing protrusion;

[0031] 30. Elastic element; 301. Positioning groove;

[0032] 40. Frame; 401. First assembly slot; 4011. Sealed space; 4012. Glue dispensing space;

[0033] 50. Nose pad; 501. Second assembly slot. Detailed Implementation

[0034] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0035] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0039] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0040] In the eyewear industry, nose pads are an essential accessory for both product shipping and user use. Due to variations in nose bridge height across different regions and populations, eyeglasses are typically designed with multiple frame and nose pad specifications to accommodate different nose bridge heights. Because of the nature of eyeglasses, different sized nose pads or frames must be matched to the corresponding individual's nose bridge, significantly increasing the difficulty of designing and standardizing materials.

[0041] Currently, integrated nose pad solutions for eyeglasses are generally available in various sizes, including frames and nose pads, to match different user needs. This makes it impossible to adapt the same nose pad to nose bridges of different shapes and sizes, increasing the difficulty of eyeglasses research and development and material standardization. Not only is this more costly and results in a poor user experience, but it also goes against environmental protection requirements.

[0042] In one existing adjustable nose pad solution, a pair of elastic claw mechanisms arranged symmetrically at the center engage with a toothed disc to achieve "damping sensation" during multi-position adjustment and position switching of the nose pads. However, in order to ensure the elasticity and service life of the claw mechanism, the claw mechanism has certain requirements on size and material. This results in the claw mechanism and toothed disc combination structure having a large mass and size, which not only affects the user's usability but also makes it impossible to install the combination structure when the frame and nose pad size are small.

[0043] Therefore, it is necessary to provide a hinge and eyeglasses that are lightweight, small in size, and require less adaptation to the frame and nose pads, so as to facilitate the standardization of eyeglass materials.

[0044] Please see Figure 1 , Figure 1 This is a schematic diagram of the hinge structure in one embodiment of the present application. The hinge includes a core 10, a sleeve 20, and an elastic element 30. The core 10 is divided into three parts along its axial direction: a core portion 11, a locking portion 12, and a stop portion 13. The locking portion 12 has a first toothed area 1201 extending circumferentially on the side facing the stop portion 13. The sleeve 20 is movably fitted onto the core portion 11 and has a second toothed area 201 extending circumferentially and engaging with the first toothed area 1201. The elastic element 30 is placed between the stop portion 13 and the sleeve 20, with both ends of the elastic element 30 abutting against the stop portion 13 and the sleeve 20 respectively to engage the first toothed area 1201 and the second toothed area 201. In the hinge provided in the above embodiment, the locking portion 12 and the sleeve 20 of the core 10 are used to connect to the nose pad 50 and the eyeglass frame 40, respectively. In actual use, due to the pressing action of the elastic element 30 on the bushing 20, a squeezing force is generated between the first meshing area 1201 and the second meshing area 201. When the bushing 20 and the shaft core 10 tend to rotate relative to each other due to the action of external force, the squeezing force must be overcome before the bushing 20 and the snap-fit ​​part 12 can be disengaged, which forms a damping that hinders rotation.

[0045] Based on the above structure, the hinge provided in this application has the following advantages:

[0046] First, the teeth in the first meshing area 1201 and the teeth in the second meshing area 201 only need to perform the meshing function. The squeezing action between the bushing 20 and the snap-fit ​​part 12 is borne by the elastic element 30. Therefore, the rigidity and hardness of the teeth in the first meshing area 1201 and the teeth in the second meshing area 201 can be improved. That is, using hard materials that are not easily deformed is beneficial to reducing the risk of wear and damage, thereby increasing the service life.

[0047] Secondly, only smaller meshing teeth are needed to achieve the damping effect, so the size of the bushing 20 and the shaft core 10 can also be reduced accordingly. This reduces the overall mass of the hinge, so that it will not significantly increase the weight of the glasses when used in eyeglasses, which is beneficial to improving the user's wearing experience.

[0048] Finally, the power source for this damping is the elastic element 30, which makes it convenient to adjust the damping magnitude by replacing the elastic element 30 with different elastic moduli, without having to replace different models of bushing 20 or shaft core 10, thus facilitating the standardized management of eyeglass materials.

[0049] like Figure 2 As shown, the stop portion 13 is detachably mounted on the shaft body 11 for easy assembly. Specifically, the shaft body 11 has a mounting groove 1101 distributed circumferentially at the end away from the snap-fit ​​portion 12, and the stop portion 13 is a snap ring that snaps into the mounting groove 1101.

[0050] like Figure 2 and Figure 3 As shown, to prevent relative rotation between the hinge and the frame 40 and between the hinge and the nose pad 50, the outer peripheral surface of the locking part 12 and / or the outer peripheral surface of the bushing 20 are waist-shaped. Specifically, with Figure 7 Taking the connection between the snap-fit ​​part 12 and the nose pad 50 as an example, the outer peripheral surface of the snap-fit ​​part 12 is formed by connecting the flat surface, the arc surface, the flat surface, and the arc surface in sequence along the circumferential direction to form a waist shape. It can be understood that the inner wall of the second mounting groove 501 in the nose pad 50 is also waist-shaped and is adapted to the size of the snap-fit ​​part 12.

[0051] like Figure 2 and Figure 3 As shown, the snap-fit ​​portion 12 has a first abutting surface 1202 facing the bushing 20, and the bushing 20 has a second abutting surface 202 facing the snap-fit ​​portion 12. When the first meshing area 1201 engages with the second meshing area 201, the first abutting surface 1202 is in contact with the second abutting surface 202. By increasing the contact between the two abutting surfaces, the tightness of the fit between the bushing 20 and the snap-fit ​​portion 12 is further increased, reducing loosening and shaking.

[0052] like Figure 3 and Figure 4As shown, in one embodiment provided in this application, the bushing 20 has a second recessed groove located in the second toothed area 201. The teeth of the second toothed area 201 are fixed to the bottom of the second recessed groove. The axial height H of the teeth in the second toothed area 201 is less than or equal to the axial depth D of the second recessed groove. The number of teeth in the second toothed area 201 is greater than the number of teeth in the first toothed area 1201, and the tooth pitch of the first toothed area 1201 is the same as the tooth pitch of the second toothed area 201. The circumferential length range of the second recessed groove, i.e., the total range of damped adjustment between the bushing 20 and the snap-fit ​​part 12, allows for adjustment beyond this range. When the adjustment exceeds this range, the relative rotation between the bushing 20 and the snap-fit ​​part 12 will not be affected by damping. The user can use this difference to determine whether the nose pad 50 is adjusted out of range. The limitation of this range also facilitates the determination of whether the positions of the two nose pads 50 are adjusted to be consistent. Furthermore, to facilitate informing the user that the hinge has reached the boundary of the adjustment range, the axial height H of the teeth in the second recessed groove is less than the axial depth D of the second recessed groove. As a result, the damping of the bushing 20 and the locking part 12 at the boundary of the adjustment range is greater, and the teeth of the second tooth area 201 are less likely to rotate out of the second recessed groove when they reach the boundary of the second recessed groove. This reduces the wear and scratching of the teeth of the second tooth area 201 on the second contact surface 202 of the bushing 20, thereby helping to extend the service life of the hinge.

[0053] Specifically, in this embodiment provided in this application, such as Figure 3 As shown, the first meshing area 1201 is provided with three protruding meshing teeth, such as... Figure 4 As shown, the second gear region 201 includes four teeth located in the second sinking groove. The distance between the outermost tooth and the sidewall of the second sinking groove is the same as the tooth pitch, thus forming three gear positions. It can be understood that the stroke of each gear position can be adjusted by adjusting the gear ratio of the first gear region 1201 and the second gear region 201.

[0054] Optionally, in other embodiments of this application, the snap-fit ​​portion 12 has a first recessed groove located in the first toothed area 1201. The teeth of the first toothed area 1201 are fixed to the bottom of the first recessed groove. The axial height of the teeth of the first toothed area 1201 is less than or equal to the axial depth of the first recessed groove. The number of teeth in the first toothed area 1201 is greater than the number of teeth in the second toothed area 201, and the tooth pitch of the first toothed area 1201 is the same as the tooth pitch of the second toothed area 201. This can also achieve the effect of prompting the user to adjust the range boundary.

[0055] like Figure 2 As shown, in this embodiment provided in this application, the elastic element 30 is sleeved on the shaft body 11 for easy assembly. Specifically, the elastic element 30 employs an SUS420 elastic washer to reduce the cost of redesign.

[0056] like Figure 2 and Figure 4 As shown, optionally, to facilitate fixing the elastic element 30, the bushing 20 includes a cylindrical body 21 providing the second meshing area 201 and a positioning block 22 located at one end of the cylindrical body 21 near the elastic element 30. The elastic element 30 has a positioning groove 301 that engages with the positioning block 22. Multiple sets of positioning blocks 22 and positioning grooves 301 can be used to improve the positioning effect, reduce wobbling, and ensure the structural stability of the hinge.

[0057] like Figure 5 , Figure 6 , Figure 8 and Figure 9 As shown, according to another aspect of this application, this application also provides eyeglasses, including a frame 40, a nose pad 50 and the aforementioned hinge, wherein the frame 40 is connected to one of the hinge's core 10 and bushing 20, and the nose pad 50 is connected to the other of the hinge's core 10 or bushing 20, and the nose pad 50 has multiple adjustment positions relative to the frame 40 to adapt to different shapes of nose bridges.

[0058] like Figure 6 and Figure 7 As shown, specifically, in one embodiment provided in this application, the frame 40 has a first mounting groove 401, the nose pad 50 has a second mounting groove 501, the hinge's snap-fit ​​part 12 is inserted into the first mounting groove 401, and the hinge's bushing 20 is inserted into the second mounting groove 501. By creating grooves, the distance between the nose pad 50 and the frame 40 can be reduced while the hinge is installed, avoiding a large gap between them after assembly. Overall, the appearance is almost identical to when the hinge is not installed. This achieves adjustable nose pads while also considering aesthetics, improving the user's wearing experience. Optionally, in other embodiments of this application, the hinge's snap-fit ​​part 12 can also be inserted into the second mounting groove 501, and the bushing 20 can be inserted into the first mounting groove 401.

[0059] Please refer to the following: Figure 1 , Figure 2 , Figure 7 The bushing 20 also includes a sealing protrusion 23 fixed to the outer circumferential surface of the cylinder 21. The shape of the sealing protrusion 23 matches the shape of the first mounting groove 401 on the frame 40. When the bushing 20 is inserted into the first mounting groove 401, the sealing protrusion 23 abuts against the inner wall of the first mounting groove 401 to isolate a sealing space 4011 and an adhesive dispensing space 4012 communicating with the outside in the first mounting groove 401. The retaining spring and elastic element 30 are located in the sealing space 4011 and are not easily affected by external dust and moisture. The adhesive dispensing space 4012 is used to contain adhesive to increase the stability of the connection between the hinge and the frame 40.

[0060] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0061] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A hinge for connecting a glasses frame and a nose pad, characterized in that, include: The shaft core includes a shaft body, a snap-fit ​​portion at one end of the shaft body, and a stop portion at the other end of the shaft body. The snap-fit ​​portion has a first toothed area extending circumferentially on the side facing the stop portion. The snap-fit ​​portion is used to connect one of the eyeglass frame and the nose pad. A bushing, movably fitted onto the shaft body, the bushing having a second toothed area extending circumferentially and engaging with the first toothed area, the bushing being used to connect the other of the eyeglass frame and the nose pad; as well as An elastic element is placed between the stop portion and the bushing, with its two ends abutting against the stop portion and the bushing respectively to engage the first meshing area and the second meshing area.

2. The hinge according to claim 1, characterized in that, The stop portion is detachably mounted on the shaft body.

3. The hinge according to claim 2, characterized in that, The shaft body has a mounting groove, and the stop part is a retaining spring that engages with the mounting groove.

4. The hinge according to claim 1, characterized in that, The outer peripheral surface of the snap-fit ​​part and / or the outer peripheral surface of the bushing are waist-shaped.

5. The hinge according to any one of claims 1 to 4, characterized in that, The snap-fit ​​portion has a first abutting surface facing the bushing, and the bushing has a second abutting surface facing the snap-fit ​​portion. When the first toothed area engages with the second toothed area, the first abutting surface is in contact with the second abutting surface.

6. The hinge according to any one of claims 1 to 4, characterized in that, The engaging portion has a first recessed groove located in the first toothed area. The teeth in the first toothed area are fixed to the bottom of the first recessed groove. The axial height of the teeth in the first toothed area is less than or equal to the axial depth of the first recessed groove. The number of teeth in the first toothed area is greater than the number of teeth in the second toothed area, and the tooth pitch of the first toothed area is the same as the tooth pitch of the second toothed area. The bushing has a second sinking groove located in the second tooth area. The teeth in the second tooth area are fixed to the bottom of the second sinking groove. The axial height of the teeth in the second tooth area is less than or equal to the axial depth of the second sinking groove. The number of teeth in the second tooth area is greater than the number of teeth in the first tooth area, and the tooth pitch of the first tooth area is the same as the tooth pitch of the second tooth area.

7. The hinge according to any one of claims 1 to 4, characterized in that, The elastic element is sleeved on the shaft body.

8. The hinge according to any one of claims 1 to 4, characterized in that, The bushing includes a cylindrical body providing the second meshing area and a positioning block located at one end of the cylindrical body near the elastic member, the elastic member having a positioning groove that engages with the positioning block.

9. A pair of eyeglasses, characterized in that, include: The hinge as described in any one of claims 1 to 8; The frame is connected to one of the pivot and the bushing of the hinge; as well as The nose pad is another component connected to the hinge's core or bushing.

10. The eyeglasses according to claim 9, characterized in that, The eyeglass frame has a first mounting groove, the nose pad has a second mounting groove, the latching part of the hinge is inserted into one of the first mounting groove and the second mounting groove, and the bushing of the hinge is inserted into the other of the first mounting groove and the second mounting groove.

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