CN219176707U

CN219176707U - Jaw, buckle structure and buckle assembly part

Info

Publication number: CN219176707U
Application number: CN202223316577.2U
Authority: CN
Inventors: 舒柳根; 吴炳先; 郭先坷
Original assignee: Faurecia Clarion Electronics Xiamen Co Ltd
Current assignee: Faurecia Clarion Electronics Xiamen Co Ltd
Priority date: 2022-12-09
Filing date: 2022-12-09
Publication date: 2023-06-13
Anticipated expiration: 2032-12-09

Abstract

The application provides a jack catch, buckle structure and buckle assembly part. Wherein the claw comprises an arm part (11) and a claw part (12), and the claw part (12) protrudes from the arm part (11) along a first direction and is used for being matched with a bayonet (2) corresponding to the claw (1); the claw part (12) comprises a first guide surface (121) and a second guide surface (122), wherein the second guide surface (122) is positioned on the outer side of the first guide surface (121) in the first direction; the first guide surface (121) has a first guide angle (1210), the second guide surface (122) has a second guide angle (1220), and the second guide angle (1220) is greater than the first guide angle (1210).

Description

Jaw, buckle structure and buckle assembly part

Technical Field

The application relates to a claw, a buckle structure and a buckle assembly part.

Background

A snap structure, such as a snap fitting, typically has a jaw on one side and a bayonet on the other side, and presses one side against the other side during assembly.

The inventors have found in practice that the production efficiency of a snap fitting is low when a high strength requirement for the snap structure of the snap fitting is required, for example, when it is provided that the snap structure needs to withstand a high force in order to be un-snapped. The reason for this is that the claw needs to be designed to be high in strength, resulting in a large force required for assembly, and a large pressing force is required for assembly operators at the time of pressing, resulting in a reduction in assembly efficiency.

Disclosure of Invention

The object of the present application is to provide a claw.

Another object of the present application is to provide a snap structure.

It is another object of the present application to provide a snap fitting.

A pawl according to a first aspect of the present application, comprising: an arm section; a claw portion protruding from the arm portion in a first direction for bayonet fitting corresponding to the claw; the claw part comprises a first guide surface and a second guide surface, wherein the second guide surface is positioned on the outer side of the first guide surface in the first direction; the first guide surface has a first guide angle and the second guide surface has a second guide angle, the second guide angle being greater than the first guide angle.

In the technical scheme of the embodiment, the second guide surface with larger guide angle is arranged on the basis of the first guide surface, so that the assembly force required in the assembly process is reduced on the premise of keeping the structural strength unchanged, and the assembly efficiency is ensured.

In one or more embodiments of the claw, the first guiding surface is an inclined surface, the first guiding angle is an included angle between the first guiding surface and the first direction, the second guiding surface is an inclined surface, and the second guiding angle is an included angle between the second guiding surface and the first direction.

In one or more embodiments of the claw, the extension direction of the arm is a second direction, and the first direction in which the claw extends is perpendicular to the second direction.

In one or more embodiments of the jaws, the arms of the jaws are flexible arms that are capable of rotating when the first and second guide surfaces are subjected to pressure.

According to a second aspect of the present application, a snap structure comprises: a claw as claimed in the first aspect; and the bayonet is matched with the claw part of the claw, so that the bayonet and the claw can be connected in a buckling way.

In one or more embodiments of the snap-fit structure, the bayonet comprises a first portion, a second portion, both defining an open space; when the buckle structure is in a first state, the first part can be sequentially abutted with the first guide surface and the second guide surface to apply pressure.

In one or more embodiments of the snap feature, the jaw further comprises a bearing surface opposite the first or second guide surface, the first portion comprising oppositely disposed first and second surfaces; when the buckle structure is in a first state, the first surface can be sequentially abutted with the first guide surface and the second guide surface to apply pressure; when the clamping structure is in a second state, the clamping claw is positioned in the opening space, the second surface corresponds to the supporting surface, and the second part corresponds to the first guiding surface or the second guiding surface.

In one or more embodiments of the snap structure, the first portion and the second portion are disposed adjacent to each other in the second direction, and the bayonet is subjected to a driving force in the second direction so that the first portion can sequentially abut against the first guide surface and the second guide surface to apply pressure.

A snap fitting according to another aspect of the present application, comprising: a first component; a second component; wherein one of the first and second parts has a jaw according to the first aspect, and the other has a bayonet, the first and second parts being snap-fit connected by the jaw and bayonet.

In one or more embodiments of the snap fitting, the snap fitting is a bezel member.

Drawings

The above and other features, properties and advantages of the present application will become more apparent from the following description of embodiments taken in conjunction with the accompanying drawings in which like reference characters designate like features throughout the drawings, and in which:

fig. 1 is a schematic diagram of a comparative jaw.

Fig. 2 is a schematic structural view of a claw according to an embodiment.

Fig. 3A, 3B, 3C, and 3D are schematic structural views illustrating a first state of the fastening structure of the alignment scheme.

Fig. 3E is a schematic view of the guide angle of the pawl disengagement of the snap-in structure of a comparison.

Fig. 4 is a schematic structural view of a second state of the buckle structure of the comparison scheme.

Fig. 5 is a schematic view of a guide angle of a pawl release of a buckle structure according to an embodiment.

Fig. 6 is a schematic structural diagram of a second state of the buckle structure according to an embodiment.

Fig. 7 is a graph of assembly force of a comparative snap fitting from a first state to a second state.

Fig. 8 is a graph of assembly force of a snap fitting of an embodiment from a first state to a second state.

Reference numerals:

100-snap fitting, 101-first part, 102-second part;

10-buckle structure, 1-claw and 2-bayonet;

11-arm, 12-jaw, 121-first guide surface, 122-second guide surface, 1210-first guide angle, 1220-second guide angle; 123-bearing surface;

21-first part, 22-second part, 23-open space, 211-first surface, 212-second surface.

Detailed Description

The following discloses a number of different embodiments or examples of implementing the subject technology. Specific examples of components and arrangements are described below for purposes of simplifying the disclosure, and are, of course, merely examples and are not intended to limit the scope of the present application.

In the following description, the orientation or positional relationship indicated by the terms "inner", "outer", "upper", "lower", or other orientation are based on the orientation or positional relationship shown in the drawings, for convenience of description and simplicity of description, and are not meant to indicate or imply that the apparatus or components referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model.

Furthermore, references to "one embodiment," "an embodiment," and/or "some embodiments" mean a particular feature, structure, or characteristic described in connection with at least one embodiment of the present application. Thus, it should be emphasized and should be appreciated that two or more references to "an embodiment" or "one or more embodiments" in various positions in this specification are not necessarily referring to the same embodiment. Furthermore, certain features, structures, or characteristics of one or more embodiments of the present application may be combined as suitable.

For flexible parts, such as resin parts, to be fixed to each other, it is necessary to use a snap-fit structure of the jaws and the bayonet to connect. When assembling on the production line, assembly operators make the clamping jaw deform by a certain amount by pressing the surface of the resin part, and finally fall into an opening space defined by the clamping jaw to form clamping connection and fixation. In a comparison, for example as shown in fig. 1, 3A to 3E and 4, the jaw 1000 comprises an arm 1001, a jaw 1002, the jaw 1002 extending laterally from the arm 1001 for cooperation with a corresponding bayonet 2 of the jaw 1000. The pawl 1002 has a first guide surface 10021. As shown in fig. 3A, 3B and fig. 3C, 3D, when assembling, the snap structure is in the first state, the resin member has the bayonet 2, as shown in fig. 3A, 3B, the resin member is pressed downward by the pressing force P, the first portion 21 of the bayonet 2 is in contact with the first guide surface 10021 and is guided by the first guide surface to be kept in contact therewith along the first guide surface, and the arm 1001 of the claw is rotated by receiving the component force in the horizontal direction until the moment when the first portion 21 of the bayonet 2 is disengaged from the first guide surface 10021 as shown in fig. 3C, 3D, as shown in fig. 3E, after which the claw 1000 is disengaged from the bayonet 2. As shown in fig. 4, the arm 1001 of the claw returns to the initial position again, so that the claw 1002 enters the bayonet 2 to form a snap connection, which is the second state of the snap structure.

Based on the above, the inventors have intensively studied and found that when the bayonet 2 is always moved along the first guide surface 10021 until it is released, the first guide surface 10021 is displaced in the horizontal direction due to the rotation of the arm 1001, and the guide angle provided by the first guide surface 10021, that is, the angle between the first guide surface and the horizontal direction is significantly reduced compared with the initial time, taking the guide angle of the first guide surface 10021 as an example, 37 ° and found that when the bayonet is positioned in fig. 3C and 3D, the guide angle provided by the first guide surface 10021 at the moment of releasing is about 18.5 ° due to the displacement of the first guide surface 10021, which is almost half of the initial time shown in fig. 3A and 3B. Correspondingly, in comparison with the diagrams shown in fig. 3A, 3B and fig. 3C, 3D, the strength of the claw 1000 itself is unchanged, for example, fx1=26n is provided horizontally to the right in the stress analysis diagrams provided in fig. 3A, 3B and fig. 3C, 3D, and as shown in fig. 3A, 3B, the required assembly force is initially: f=fx1/cosB/cosa=26/cos53/cos37=26/0.601/0.798=54.1N.

As shown in fig. 3C, 3D, upon removal, the required assembly force is:

F＝Fx1/cosB/cosA＝26/cos71.5/cos18.5＝26/0.317/0.948＝86.4N。

i.e., the final assembly force exceeds the initial assembly force by more than 50%, resulting in a decrease in assembly efficiency.

The inventor finds that, on the basis of the first guide surface, a second guide surface with a larger guide angle is further arranged on the outer side of the first guide surface, so that the bayonet 2 is still guided by the larger guide angle when the bayonet is separated, the assembling force required in the assembling process is reduced on the premise of keeping the structural strength unchanged compared with the comparative scheme, and the assembling efficiency is ensured.

Although the claw and the fastening structure disclosed in the embodiment of the application are suitable for the effect that the fastening assembly part of the resin reduces the assembly force and improves the assembly efficiency, the utility model is not limited thereto, and the claw and the fastening structure can be also suitable for other scenes with the claw and the fastening structure. The resin snap fitting may be a frame member of a display device, such as a frame of a center control screen of a vehicle interior, but is not limited thereto, and the flexible material used for the jaws is not limited to resin.

As shown in fig. 2, 5, 6, in some embodiments, the jaw 1 includes an arm 11 and a jaw 12. A claw portion 12, the claw portion 12 protruding from the arm portion 11 in the first direction for engagement with the bayonet 2 corresponding to the claw 1.

As shown in fig. 2, the first direction in which the claw portion 12 extends may be a horizontal direction, and the direction in which the arm portion 11 extends may be a vertical direction, which are perpendicular to each other, but not limited thereto.

The claw portion 12 includes a first guide surface 121 and a second guide surface 122, and the second guide surface 122 is located outside the first guide surface 121 in the first direction. The first guide surface 121 has a first guide angle 1210 and the second guide surface 122 has a second guide angle 1220, the second guide angle 1220 being greater than the first guide angle 1210.

The meaning of "guide surface" is here similar to that of the comparative version shown in fig. 3A, 3B, 3C, 3D, i.e. during assembly the guide surface is kept in contact with the bayonet 2 provided to be pressed by the operator until a disengagement occurs, along which the bayonet 2 moves due to the guiding of the guide surface.

The meaning of "guide angle" is the angle between the normal direction of the guide surface and the fitting force when the guide surface is in contact with the bayonet, as shown in fig. 2, in some embodiments, the first guide surface 121 and the second guide surface 122 are both inclined surfaces, and then the first guide angle 1210 is the angle between the first guide surface 121 and the first direction, that is, the angle between the second guide surface 122 and the horizontal direction, and similarly, the second guide angle 1220 is the angle between the second guide surface 122 and the horizontal direction. The "guide angle" herein refers to an initial guide angle, that is, a guide angle when the arm 11 is not rotated.

In some embodiments, the arm 11 may be a flexible arm, for example, the arm 11 and the claw 12 are integrally formed of a resin material, and when the first guide surface 121 and the second guide surface 122 are pressed, the arm 11 can also rotate similarly to the case where the first guide surface 10021 is pressed in the comparison. It will be appreciated that the arm 11 is not limited to a flexible arm, but may be a rigid arm, for example, but is pivotally connected to a pivot by a torsion spring, so that it can be rotated when subjected to pressure.

Taking the example of the guide angle 37 ° of the first guide surface 10021 of the comparative example, the first guide angle 1210 of the first guide surface 121 of the embodiment may also be 37 ° and the second guide angle 1220 may be 56.4 °.

The snap-in process of the snap-in structure 10 may be the process described below.

The snap-on structure 10 comprises the claw 1 described in the above embodiments, and the same bayonet 2 as in the described comparative solution, the bayonet 2 cooperating with the claw 12 of the claw 1 such that the bayonet 2 and the claw 1 can be snap-connected.

The bayonet 2 may be constructed as shown with reference to fig. 3A, 3B and 3C, 3D, and includes a first portion 21, a second portion 22, both defining an open space 23. The first portion 21 and the second portion 22 are disposed adjacently in the second direction, i.e., the vertical direction, and the bayonet 2 receives a driving force in the second direction, i.e., a pressing force by an operator, so that the first portion 21 can sequentially abut against the first guide surface 121 and the second guide surface 122 to apply a pressing force. Similar to fig. 3A, 3B and fig. 3C and 3D, when the snap structure 10 is in the first state, the first portion 21 can sequentially abut against the first guide surface 121 and the second guide surface 122 to apply pressure. Specifically, the first portion 21 may include a first surface 211 and a second surface 212 that are disposed opposite to each other; when the buckle structure 10 is in the first state, the first surface 211 can sequentially abut against the first guiding surface 121 and the second guiding surface 122 to apply pressure, that is, the first surface 211 moves along the first guiding surface 121 and then along the second guiding surface 122 until the second guiding surface 122 is disengaged, that is, the structure shown in fig. 5. As shown in fig. 6, the arm 11 of the jaw 1 returns to the initial position again, so that the jaw 12 enters the bayonet 2 to form a snap connection, which is the second state of the snap structure. The jaw 12 is now located in said open space 23, and the bearing surface 123 of the jaw 12 opposite the first or

second guide surface

121, 122 corresponds to the second surface 212 of the first portion 21, while the first or

second guide surface

121, 122 corresponds to the first surface 211 of the first portion 21.

The inventors found that the angle of orientation of the comparative embodiment shown in fig. 3C, 3D was only 18.5 ° when disengaged, using the embodiment shown in fig. 6 wherein the second angle of orientation 1220 was 56.4 °, the angle of orientation when the jaw 12 was disengaged was 37.9 ° greater than the initial 37 ° (strictly speaking, fig. 6 shows the moment after disengagement, but it can be understood that the arm 11 still remains in the position when disengaged for a short period of time after disengagement), as with the Fx1 of the comparative embodiment, the required assembly force was:

F＝Fx1/cosB/cosA＝26/cos52.1/cos37.9＝26/0.614/0.789＝53.6N。

significantly less than the 86.5N assembly force required to release the comparative solution.

In addition, the assembly force graphs shown in fig. 7 and 8 may be compared. In contrast, the guide surface of the claw portion is a first guide surface 10021 with a guide angle of 37 ° all the time, and in the embodiment, the first guide angle of the first guide surface 121 is 37 ° and the second guide angle of the second guide surface 122 is 60 °.

As can be seen from comparing fig. 7 and 8, since the embodiment adopts the second guiding surface 122 and the second guiding angle 1220 larger than the first guiding angle 1210, the assembly force of the final embodiment is 48N, which is far smaller than 48N of the comparison scheme, after moving from the first surface 211 of the first portion 21 of the bayonet 2 along the first guiding surface 121 to contact with the second guiding surface 122 during the press-fitting, since the second guiding angle 1220 of the second guiding surface 122 is larger than the first guiding angle 1210, the inclination angle is steeper, and the horizontal component force is generated, so that the assembly pressing force is gradually increased after being sharply decreased.

As introduced above, in some embodiments, as shown in fig. 5 and 6, the present application further provides a snap fitting 100 comprising a first part 101 and a second part 102, wherein one of the first part 101 and the second part 102 has a jaw 1, and the other has a bayonet 2, for example, the first part has a jaw 1 and the second part 102 has a bayonet 2, and the first part 101 and the second part 102 are snap-fitted to each other via the jaw 1 and the bayonet 2. For example, the buckle assembly 100 may be a frame of a central control screen of a vehicle interior, the first part 101 shown in the figure may be an outer frame, and the second part 102 may be an inner frame, and the two parts are connected in a buckle assembly manner to form a frame member, and then connected with the screen to form the central control screen.

In summary, the claw of the above embodiment sets up the second guide surface that the guide angle is bigger through on the basis of first guide surface, has realized keeping under the unchangeable prerequisite of structural strength, reduces buckle structure and buckle assembly part at the required assembly force of assembly lock process, has guaranteed assembly efficiency.

Although the present utility model has been described with reference to the above embodiments, it is not intended to be limited thereto, and any person skilled in the art can make possible variations and modifications without departing from the spirit and scope of the present utility model. Therefore, any modifications, equivalent variations and modifications made to the above embodiments according to the technical substance of the present application fall within the protection scope defined by the claims of the present application, unless they depart from the content of the technical solution of the present application.

Claims

1. A jaw (1), characterized by comprising:

an arm (11);

a claw portion (12), the claw portion (12) protruding from the arm portion (11) in a first direction for fitting with a bayonet (2) corresponding to the claw (1);

the claw part (12) comprises a first guide surface (121) and a second guide surface (122), wherein the second guide surface (122) is positioned on the outer side of the first guide surface (121) in the first direction;

the first guide surface (121) has a first guide angle (1210), the second guide surface (122) has a second guide angle (1220), and the second guide angle (1220) is greater than the first guide angle (1210).

2. The pawl (1) according to claim 1, wherein the first guide surface (121) is an inclined surface, the first guide angle (1210) is an angle between the first guide surface (121) and the first direction, the second guide surface (122) is an inclined surface, and the second guide angle (1220) is an angle between the second guide surface (122) and the first direction.

3. A claw (1) according to claim 1 wherein the extension of the arm (11) is in a second direction, the first direction in which the claw (12) extends being perpendicular to the second direction.

4. A jaw (1) according to claim 1, characterized in that the arm (11) of the jaw (1) is a flexible arm, the arm (11) being rotatable when the first guide surface (121) and the second guide surface (122) are subjected to pressure.

5. A snap-in construction (10), characterized in that it comprises:

a claw (1) according to any one of claims 1-4; and

and the bayonet (2) is matched with the claw (12) of the claw (1), so that the bayonet (2) and the claw (1) can be connected in a buckling way.

6. The snap construction (10) according to claim 5, wherein the bayonet (2) comprises a first portion (21), a second portion (22), both defining an open space (23); when the fastening structure (10) is in the first state, the first portion (21) can sequentially abut against the first guide surface (121) and the second guide surface (122) to apply pressure.

7. The snap structure (10) of claim 6, wherein the jaw (12) further comprises a bearing surface (123) opposite the first guide surface (121) or the second guide surface (122), the first portion (21) comprising oppositely disposed first and second surfaces (211, 212); when the buckle structure (10) is in a first state, the first surface (211) can sequentially abut against the first guide surface (121) and the second guide surface (122) to apply pressure; when the fastening structure (10) is in the second state, the claw (1) is located in the opening space (23), the second surface (212) corresponds to the supporting surface (123), and the second portion (22) corresponds to the first guiding surface (121) or the second guiding surface (122).

8. The snap structure (10) according to claim 6, wherein the first portion (21), the second portion (22) are arranged adjacent in a second direction, the bayonet (2) being subjected to a driving force in the second direction such that the first portion (21) can in turn abut against the first guide surface (121) and the second guide surface (122) for exerting a pressure.

9. A snap fitting (100) comprising:

a first component (101);

a second component (102);

wherein one of the first part (101) and the second part (102) is provided with a claw (1) according to any one of claims 1-4, wherein the other is provided with a bayonet (2), and the first part (101) and the second part (102) are connected through the claw (1) and the bayonet (2) in a snap fit manner.

10. The snap fitting (100) of claim 9, wherein the snap fitting (100) is a bezel member.