Double-shot molding integrated roller gear pin and roller gear pin structure

Abstract

The utility model provides a bicolor injection molding integrated roller gear pin and a roller gear pin structure, which belong to the technical field of automobile switches, the bicolor injection molding integrated roller gear pin comprises a lifting pin and a roller, the roller comprises a rotating shaft part and a rolling part sleeved on the rotating shaft part, and the two parts are integrated through bicolor injection molding. The rotating shaft part is made of a plastic material, and the rolling part is made of a rubber material; according to the utility model, the contact surface of the roller is made of a soft rubber material, the hand feeling is soft, a suction feeling is provided during operation, secondly, vibration generated by collision between the roller and the track during operation is coupled by the soft rubber, the operation sound is reduced, part of impact force is absorbed by the soft rubber during operation, the risk of shifting is reduced, and in addition, the service life of the roller is prolonged. The roller is light in overall weight, low in cost and free of assembly.

Description

Technical Field

[0001] This utility model relates to the field of automotive switch technology, specifically to a two-color injection molded integrated roller stop pin and roller stop pin structure. Background Technology

[0002] The existing gear shift pin structure for gear shifters, combination switches, or driving mode switches has the following options:

[0003] 1. The disadvantages of using metal shift pins and nylon rails are: loud operation, risk of shifting gears incorrectly, and high manufacturing cost;

[0004] 2. The use of plastic stop pins and nylon rails has the disadvantages of: uneven operation and risk of operational stoppage.

[0005] 3. It adopts a separate design of roller and gear pin, and the roller is made of metal. Its disadvantages are: loud operation, risk of shifting gears, and slightly higher cost.

[0006] In summary, there is an urgent need to design a gear shift pin structure that is smooth to operate, quiet to operate, free from the risk of shifting gears, and low in manufacturing cost. Utility Model Content

[0007] The purpose of this utility model is to overcome the shortcomings and deficiencies of the existing technology and to provide a two-color injection molded one-piece roller stop pin and roller stop pin structure.

[0008] The technical solution adopted by this utility model is as follows: In the first aspect, this application provides a two-color injection molded one-piece roller stop pin, including a top pin and a roller. The roller includes a rotating shaft and a rolling part sleeved on the rotating shaft. The two parts are integrated by two-color injection molding. The rotating shaft is made of plastic material and the rolling part is made of rubber material.

[0009] In some embodiments, the roller is integrally injection molded onto the front end of the top pin and is rotatably disposed relative to the top pin.

[0010] In some embodiments, a mounting hole is provided at the rear end of the top pin, and a spring is provided in the mounting hole.

[0011] In some embodiments, the rotating shaft includes a main shaft and two cams spaced apart on the main shaft, and the rolling part is disposed between the two cams and sleeved on the main shaft.

[0012] In some embodiments, the shaft is made of POM material or PBT material.

[0013] Secondly, this application provides a roller stop pin structure, including a track disk and an inner turntable rotatably disposed on the inner ring of the track disk. The inner turntable is provided with the aforementioned two-color injection molded one-piece roller stop pin, and the inner ring of the track disk is provided with a track portion, at least the track portion being made of plastic material.

[0014] In some embodiments, the track disk is injection molded from PA66 material.

[0015] In some embodiments, a plurality of mounting grooves are evenly provided along the outer periphery of the inner turntable, the top pin is slidably disposed in the mounting groove, and a positioning post adapted to the spring is provided at the bottom of the mounting groove. Under the action of the spring, the rolling part abuts against the track part.

[0016] In some embodiments, the outer wall of the top pin is provided with a through groove along the axial direction.

[0017] In some embodiments, the outer wall of the top pin is provided with a snap-fit ​​protrusion, the rear end of the snap-fit ​​protrusion is provided with an inclined surface, the lower side of the inclined surface is inclined backward, the inner turntable is provided with a snap-fit ​​interface adapted to the snap-fit ​​protrusion, and the snap-fit ​​protrusion is slidably disposed in the snap-fit ​​interface along the axial direction of the mounting groove.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1. In this utility model, the contact surface of the roller is made of soft rubber, which has a soft feel and a sucking sensation during operation. Secondly, the vibration generated by the impact between the roller and the track during operation is coupled by the soft rubber, which reduces the operating noise. In addition, some of the impact force during operation is absorbed by the soft rubber, reducing the risk of gear slippage. Furthermore, the roller is lightweight, low in cost, and requires no assembly.

[0020] 2. The roller in this utility model is made of two-color injection molding: the first color is plastic material, which ensures the structural strength of the roller and the smoothness of matching the stop pin.

[0021] 3. In this utility model, the roller stop pin and the track part have rolling friction, which makes the operation smoother compared with conventional stop pins.

[0022] 4. In this utility model, the roller stop pin can be used as a standard part, which improves the standardization design level of the roller stop pin, enhances the operating comfort of the switch, and reduces costs. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, obtaining other drawings based on these drawings without creative effort still falls within the scope of this utility model.

[0024] Figure 1 This is a schematic diagram of a two-color injection molded one-piece roller stop pin according to the present invention;

[0025] Figure 2 This is an exploded view of a two-color injection molded one-piece roller stop pin according to this utility model;

[0026] Figure 3 This is an exploded view of the roller stop pin structure in this utility model;

[0027] Figure 4 This is a cross-sectional view of the roller stop pin structure in this utility model. Figure 1 ;

[0028] Figure 5 This is a cross-sectional view of the roller stop pin structure in this utility model. Figure 2 ;

[0029] Figure 6 This is a schematic diagram of the roller stop pin structure in this utility model. Detailed Implementation

[0030] The following description provides specific application scenarios and requirements for this specification, intended to enable those skilled in the art to make and use the contents of this specification. Various partial modifications to the disclosed embodiments will be apparent to those skilled in the art, and the general principles defined herein can be applied to other embodiments and applications without departing from the spirit and scope of this specification. Therefore, this specification is not limited to the embodiments shown, but rather to the widest scope consistent with the claims.

[0031] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "longitudinal", "lateral", "radial", "length", "width", "thickness", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element or component to have a specific orientation, or to be constructed and operated in a specific orientation.

[0032] Secondly, the terms "first," "second," and similar words do not indicate any order, quantity, or importance, but are merely used to distinguish different components and should not be construed as limiting the embodiments of this application.

[0033] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "connected" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral constructions; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium, or internal connections between two devices, components, or parts.

[0034] Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0035] Regarding the accompanying drawings of this application, it should be clearly understood that the drawings are for illustrative and descriptive purposes only and are not intended to limit the scope of this specification. It should also be understood that the drawings are not drawn to scale.

[0036] Example 1:

[0037] like Figure 1 and Figure 2 As shown, this embodiment provides a two-color injection molded integrated roller stop pin, including a top pin 1 and a roller 2. The roller 2 includes a rotating shaft 20 and a rolling part 21 sleeved on the rotating shaft 20. The two parts are integrated by two-color injection molding. The rotating shaft 20 is made of plastic material, and the rolling part 21 is made of rubber material. With this configuration, the contact surface of the roller 2 is made of soft rubber material, which has a soft feel and a sucking sensation during operation. Secondly, the vibration generated by the impact between the roller 2 and the track during operation is coupled by the soft rubber, which reduces the operating noise. In addition, some of the impact force during operation is absorbed by the soft rubber, which reduces the risk of shifting gears. Furthermore, the roller is lightweight, low in cost, and requires no assembly.

[0038] Secondly, roller 2 is made of two-color injection molding: the first color is plastic material, which ensures the structural strength of the roller and the smoothness of matching the stop pin.

[0039] In addition, roller stop pins can be used as standard parts, which can improve the standardization of roller stop pin design, enhance the operating comfort of switches, and reduce costs.

[0040] Preferably, the roller 2 is integrally injection molded onto the front end of the top pin 1 and is rotatably configured relative to the top pin 1. This configuration allows for rolling friction between the roller stop pin and the track, resulting in a smoother operating feel compared to conventional stop pins. Furthermore, compared to assembling the roller 2 at the front end of the top pin 1, integral injection molding simplifies the assembly process and prevents assembly gaps from causing roller 2 to shift, thus affecting the user experience.

[0041] In this embodiment of the present disclosure, a mounting hole 10 is provided at the rear end of the top pin 1, and a spring 3 is provided in the mounting hole 10 to provide elastic support for the top pin 1.

[0042] In this embodiment of the present disclosure, the rotating shaft 20 includes a main shaft 200 and two cams 201 spaced apart on the main shaft 200. The rolling part 21 is disposed between the two cams 201 and sleeved on the main shaft 200. With this arrangement, the rolling part 21 will not have axial displacement during integral injection molding, and can be more stably combined with the main shaft 200.

[0043] Preferably, the rotating shaft 20 is made of POM material or PBT material.

[0044] Example 2:

[0045] like Figures 3 to 6 As shown, this embodiment provides a roller stop pin structure, including a track disk 4 and an inner turntable 5 rotatably disposed on the inner ring of the track disk 4. The inner turntable 5 is provided with two two-color injection-molded integrated roller stop pins as described in Embodiment 1, which are symmetrically arranged around the center of the inner turntable 5. The inner ring of the track disk 4 is provided with a track portion 40, at least the track portion 40 is made of plastic material. Preferably, the track disk 4 is injection-molded from PA66 material, and the track portion 40 is a self-lubricating PA66 series material. During operation, some of the impact force is absorbed by the soft PA66 material track, reducing the risk of shifting gears.

[0046] In this embodiment, the inner turntable 5 is provided with a plurality of mounting grooves 50 evenly arranged along its outer periphery. The top pin 1 is slidably disposed in the mounting groove 50. The bottom of the mounting groove 50 is provided with a positioning post 51 adapted to the spring 3, which ensures the stability of the spring 3. Under the action of the spring 3, the rolling part 21 abuts against the track part 40, thus providing an excellent user feel.

[0047] Optionally, the outer wall of the top pin 1 is provided with a through groove 11 along the axial direction. In this embodiment, a through groove 11 is provided on each of the left and right sides of the outer wall of the top pin 1. This can reduce the friction between the top pin 1 and the inner wall of the mounting groove 50, improve the smoothness of the mechanism, and positioning protrusions can also be provided at corresponding positions on the inner wall of the mounting groove 50 to improve the stability of the movement of the top pin 1.

[0048] In this embodiment, the outer wall of the top pin 1 is provided with a snap-fit ​​protrusion 12, and the rear end of the snap-fit ​​protrusion 12 is provided with an inclined surface 13. The lower side of the inclined surface is tilted backward. The inner turntable 5 is provided with a snap-fit ​​interface 52 that is adapted to the snap-fit ​​protrusion 12. The snap-fit ​​protrusion 12 is slidably disposed in the snap-fit ​​interface 52 along the axial direction of the mounting groove 50, thereby realizing the quick assembly of the integrated roller stop pin.

[0049] In summary, after reading this detailed disclosure, those skilled in the art will understand that the foregoing detailed disclosure is presented by way of example only and is not restrictive. Although not explicitly stated herein, those skilled in the art will understand that the requirements of this application encompass various reasonable changes, improvements, and modifications to the embodiments. These changes, improvements, and modifications are intended to be made by this application and are within the spirit and scope of the exemplary embodiments of this application.

[0050] Furthermore, it should be understood that in the foregoing description of the embodiments of this application, various features are combined in a single embodiment, drawing, or description for the purpose of simplifying the understanding of a feature. However, this does not mean that the combination of these features is necessary, and those skilled in the art may readily identify some of the devices as separate embodiments when reading this application. That is, the embodiments in this application can also be understood as an integration of multiple sub-embodiments. It is also valid when each sub-embodiment contains fewer than all the features of a single foregoing disclosed embodiment.

[0051] Finally, it should be understood that the embodiments disclosed herein are illustrative of the principles of the embodiments of this application. Other modified embodiments are also within the scope of this application. Therefore, the embodiments disclosed herein are merely examples and not limitations. Those skilled in the art can adopt alternative configurations to implement the applications in this application based on the embodiments in this application. Therefore, the embodiments of this application are not limited to the embodiments precisely described in the application.

Claims

1. A two-color injection molded one-piece roller stop pin, comprising a top pin (1) and a roller (2), characterized in that, The roller (2) includes a rotating shaft (20) and a rolling part (21) sleeved on the rotating shaft (20), and the two parts are integrated by two-color injection molding. The rotating shaft (20) is made of plastic material, and the rolling part (21) is made of rubber material.

2. The two-color injection molded one-piece roller stop pin according to claim 1, characterized in that, The roller (2) is integrally injection molded at the front end of the top pin (1) and is rotatably set relative to the top pin (1).

3. The two-color injection molded one-piece roller stop pin according to claim 1, characterized in that, The rear end of the top pin (1) is provided with a mounting hole (10), and a spring (3) is provided in the mounting hole (10).

4. The two-color injection molded one-piece roller stop pin according to claim 1, characterized in that, The rotating shaft (20) includes a main shaft (200) and two cams (201) spaced apart on the main shaft (200). The rolling part (21) is disposed between the two cams (201) and sleeved on the main shaft (200).

5. The two-color injection molded one-piece roller stop pin according to claim 1, characterized in that, The rotating shaft (20) is made of POM material or PBT material.

6. A roller stop pin structure, comprising a track disk (4) and an inner turntable (5) rotatably disposed on the inner ring of the track disk (4), characterized in that, The inner turntable (5) is provided with a two-color injection molded integral roller stop pin as described in any one of claims 1 to 5, and the inner ring of the track plate (4) is provided with a track part (40), at least the track part (40) is made of plastic material.

7. The roller stop pin structure according to claim 6, characterized in that, The track plate (4) is injection molded from PA66 material.

8. The roller stop pin structure according to claim 6, characterized in that, The inner turntable (5) has several mounting grooves (50) evenly arranged along its outer periphery. The top pin (1) is slidably disposed in the mounting groove (50). The bottom of the mounting groove (50) is provided with a positioning post (51) adapted to the spring (3). Under the action of the spring (3), the rolling part (21) abuts against the track part (40).

9. The roller stop pin structure according to claim 7, characterized in that, The outer wall of the top pin (1) is provided with a through groove (11) along the axial direction.

10. The roller stop pin structure according to claim 7, characterized in that, The outer wall of the top pin (1) is provided with a snap-fit ​​protrusion (12), and the rear end of the snap-fit ​​protrusion (12) is provided with an inclined surface (13). The lower side of the inclined surface is inclined backward. The inner turntable (5) is provided with a snap-fit ​​interface (52) that is adapted to the snap-fit ​​protrusion (12). The snap-fit ​​protrusion (12) is slidably disposed in the snap-fit ​​interface (52) along the axial direction of the mounting groove (50).

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