Injection molded parts, armrest assemblies and automobiles

Abstract

The present application relates to an injection molded covering, an armrest assembly and a car, wherein the injection molded covering comprises a covering body, a first clamping portion and an inserting portion, wherein the covering body has a housing space for covering a frame; a plurality of first clamping portions are sequentially arranged along the circumferential edge of the housing space, a plurality of inserting portions are sequentially arranged along one side edge of the housing space, and the inserting portion extends toward the inside of the housing space for being inserted into one side of the frame. The injection molded covering of the present application has a housing space for covering a frame, and an inserting portion is arranged on one side edge of the housing space, and the inserting portion can be inserted into the frame, so that a reliable connection point can be formed when the injection molded covering is assembled with the frame, so as to facilitate the rapid assembly between the injection molded covering and the frame, and under the dual action of the inserting portion and the first clamping portion, the injection molded covering can be prevented from being separated from the frame when subjected to a large external drag force, so as to ensure a reliable connection between the injection molded covering and the frame.

Description

Technical Field

[0001] The present application relates to the technical field of automobile accessories, and in particular to an injection molded covering part, an armrest assembly and an automobile. Background Art

[0002] With the development of automobile interior, the comfort of automobile armrests has a great impact on the driving experience of passengers. In order to meet the needs of drivers or passengers to support elbows and arms, existing automobile armrests often cover the armrest frame with a flexible skin to enhance the soft touch of the automobile armrests.

[0003] The traditional method of making car armrests is to directly spray glue on the armrest frame and the back of the armrest skin after the armrest frame is activated by flame treatment, and then the cut armrest skin is manually fitted and covered with the armrest frame. The entire armrest product is greatly affected by the covering technique and the proficiency of the workers. Too small rounded corners cannot be achieved through the covering process. The finished armrest after covering is prone to quality problems such as bulging and wrinkles, resulting in a low qualified rate of the automobile armrest assembly and easy waste of resources. In addition, glue needs to be sprayed during the armrest production process, which has a significant negative impact on the odor of the entire vehicle and the VOC (volatile organic compound) evaluation.

[0004] Some car armrests use injection-molded skins wrapped around the armrest frames, and the injection-molded skins and the armrest frames are connected only by buckles, and the reliability of the connection is lower than the stability of glue bonding. During assembly, since there is no reliable connection point between the injection-molded skin and the armrest frame, when squeezing or pulling the injection-molded skin to engage with the armrest frame, it is easy for one side to engage and the other side to detach, resulting in low assembly efficiency. In addition, during the use of the car, if the injection-molded skin is subjected to a large external drag force, it is easy to separate from the armrest frame due to unreliable clamping, affecting the user's driving experience. Utility Model Content

[0005] One of the purposes of the present application is to provide an injection molded covering to solve the technical problem in the prior art that the injection molded skin is connected to the armrest frame only by a snap-on structure, which makes it impossible to achieve quick assembly and is easily separated from the armrest frame; the second purpose is to provide an armrest assembly; and the third purpose is to provide a car.

[0006] In order to achieve the above purpose, the technical solution adopted in this application is as follows:

[0007] An injection molded covering part, comprising:

[0008] A covering body, wherein the covering body has a containing space for covering the frame;

[0009] A first clamping portion, wherein a plurality of the first clamping portions are sequentially arranged along the circumferential edge of the accommodating space;

[0010] A plug-in portion, wherein a plurality of the plug-in portions are sequentially arranged along one side edge of the accommodating space, and the plug-in portion extends toward the inside of the accommodating space and is used for being plugged into one side of the frame.

[0011] According to the above technical means, a plug-in part is provided on the covering body, which can form a reliable connection point when assembled with the frame, and facilitate the rapid assembly between the injection molded covering and the frame. The inconsistency of manual covering can be avoided, which is more conducive to mass production. During use, since the plug-in part is stably inserted in the avoidance groove of the frame, the injection molded covering can be prevented from separating from the frame when subjected to a large external drag force. Under the dual action of the plug-in part and the first clamping part, the reliable connection between the injection molded covering and the frame can be guaranteed, which is conducive to improving the user's driving experience.

[0012] Furthermore, the plug-in portion includes a first folding plate, a second folding plate and a third folding plate, and the first folding plate, the second folding plate and the third folding plate are sequentially connected in a Z shape.

[0013] According to the above technical means, when the plug-in part is inserted into the top of the frame, the frame can be limited by the corner area formed between the first folding plate, the second folding plate and the third folding plate, thereby improving the anti-detachment performance between the plug-in part and the frame.

[0014] Furthermore, the inner surface of the covering body has evenly distributed buffer nails, and the covering body, the plug-in portion, the first clamping portion and the buffer nails are an integral injection-molded structure.

[0015] According to the above technical means, when the user touches the injection molded cover, the cover body will slowly dent under the action of the buffer pins. After the external force of the touch disappears, the cover body will slowly rebound under the action of the buffer pins, which can achieve a soft touch similar to soft skin (such as leather, etc.), which is beneficial to improving the user's driving experience. The cover body, the plug-in part, the first clamping part and the buffer pin are an integrated injection molding structure, which is beneficial to improving the connection reliability between the components and reducing the difficulty of production.

[0016] Furthermore, the buffer nail is a columnar structure, a conical structure or a truncated cone structure; the large diameter end of the conical structure or the truncated cone structure is connected to the inner surface of the covering body.

[0017] According to the above technical means, it is possible to avoid the buffer pins being pulled by the mold during demolding due to the complex structure, which affects the demolding efficiency. The axial direction of the buffer pin is consistent with the demolding direction. When the buffer pin is a cylindrical structure, the extension direction of its outer surface is consistent with the demolding direction; when the buffer pin is a conical structure or a truncated cone structure, since its large diameter end is connected to the inner surface of the covering body and the small diameter end is close to the mold surface, it is convenient to realize multiple buffer pins demolding.

[0018] An armrest assembly includes the above-mentioned injection-molded covering part and a frame, wherein the top of the frame has a plurality of avoidance grooves, the avoidance grooves are arranged in a one-to-one correspondence with the plug-in parts, and the plug-in parts are inserted in the avoidance grooves.

[0019] According to the above technical means, during the assembly process of the injection molded covering and the frame, the avoidance groove and the plug-in part can be used to cooperate to achieve the initial positioning and limiting effect of the injection molded covering, so as to facilitate the rapid alignment and assembly between the injection molded covering and the frame, thereby improving the consistency of assembly and being more conducive to mass production.

[0020] Furthermore, the frame also includes a plurality of second clamping portions sequentially arranged along the circumferential edge of the frame, and the second clamping portions are matched with the first clamping portions.

[0021] According to the above technical means, the first clamping portion and the second clamping portion are engaged with each other, so as to achieve the covering of the frame by the injection-molded covering part.

[0022] Furthermore, the armrest assembly also includes an elastic member, and the elastic member is sandwiched between the covering member body and the frame.

[0023] According to the above technical means, the excellent deformation ability of the elastic member is utilized to further enhance the soft touch of the armrest assembly.

[0024] Furthermore, the frame has a receiving groove, and the elastic member is embedded in the receiving groove.

[0025] According to the above technical means, the inner wall of the accommodating groove is used to limit the elastic member, which can prevent the elastic member from shifting during use, and also avoid the negative impact on the odor and VOC of the whole vehicle caused by gluing the elastic member.

[0026] Furthermore, the outer surface of the frame has a first positioning portion, the inner surface of the covering body has a second positioning portion, and the first positioning portion and the second positioning portion are matched in a concave-convex manner.

[0027] According to the above technical means, if there is an error in the assembly position, the injection molded covering will produce a bulge due to the inability of the first positioning portion and the second positioning portion to achieve concave-convex fit, which makes it easier for assemblers to adjust the assembly between the injection molded covering and the frame in time.

[0028] A car comprises the above-mentioned armrest assembly.

[0029] Beneficial effects of this application:

[0030] (1) Compared with traditional covering parts, injection molded covering parts are made by mold injection, and no cutting waste is generated during the production process. The raw material utilization rate is high and can reach 100%. Injection molded covering parts perfectly replicate the shape design and have a high tolerance for structural design. They avoid the minimum covering corner requirements of traditional covering processes and the appearance wrinkle problem caused by fabric accumulation. Compared with traditional covering processes, the cost can be saved by about 20%, and it is suitable for large-scale production;

[0031] (2) The plug-in part is provided on the covering part body, which can form a reliable connection point when assembled with the frame, and facilitate the rapid assembly between the injection-molded covering part and the frame. It can avoid the inconsistency of manual covering and is more conducive to mass production. During use, since the plug-in part is stably inserted in the avoidance groove of the frame, it can avoid the injection-molded covering part from separating from the frame when subjected to a large external drag force, and can ensure the reliable connection between the injection-molded covering part and the frame in the armrest assembly, which is beneficial to improving the user's driving experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A schematic diagram of the structure of the injection molded covering provided in an embodiment of the present application;

[0033] Figure 2 A front view of the injection molded covering provided in an embodiment of the present application;

[0034] Figure 3 For the embodiment of this application Figure 2 Partial cross-section of the middle AA;

[0035] Figure 4 An exploded view of the armrest assembly provided in an embodiment of the present application;

[0036] Figure 5 A schematic diagram of the structure of the skeleton provided in the embodiment of the present application;

[0037] Figure 6 A front view of the armrest assembly provided in an embodiment of the present application;

[0038] Figure 7 The embodiment of the present application provides Figure 6 Cross-section of the middle BB;

[0039] Figure 8 The embodiment of the present application provides Figure 6 Partial cross-section of the middle CC;

[0040] Fig. 9 The embodiment of the present application provides Figure 6 Cross-section of the middle DD;

[0041] Fig.10A schematic diagram of the connection between the armrest assembly and the car door provided in an embodiment of the present application.

[0042] Among them, 1-injection molded covering; 11-covering body; 12-plug-in part; 121-first folding plate; 122-second folding plate; 123-third folding plate; 13-first clamping part; 14-buffering nail; 15-second positioning part; 2-skeleton; 21-avoidance groove; 22-second clamping part; 23-accommodating groove; 24-first positioning part; 25-limiting tooth; 3-elastic part; 4-stitching; 5-door. DETAILED DESCRIPTION

[0043] The following will describe the implementation methods of the present application with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be understood that the preferred embodiments are only for illustrating the present application, not for limiting the scope of protection of the present application.

[0044] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application, and thus the drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed at will, and the component layout may also be more complicated.

[0045] See also Figures 1 to 10 The embodiment of the present application proposes an injection molded covering 1, comprising a covering body 11, a first clamping portion 13 and an inserting portion 12. The covering body 11 has a receiving space for covering the frame 2, so that the covering body 11 can be covered around the periphery of the frame 2, and its structure is matched with the structure of the frame 2. The receiving space has an opening for placing the frame 2, such as Figure 1 A plurality of first clamping parts 13 are sequentially arranged along the circumferential edge of the accommodation space (and the circumferential edge of the opening), and are used to form a plurality of frame 2 clamping connection points at the edge of the covering body 11, so as to facilitate the clamping with the frame 2. A plurality of plug-in parts 12 are sequentially arranged along one side edge of the accommodation space, and the plug-in parts 12 extend toward the inside of the accommodation space to the inner side of the covering body 11, and are used to be inserted into one side of the frame 2.

[0046] Specifically, the present application sets a plurality of plug-in parts 12 on the top side edge of the accommodating space. When assembling the injection molded covering 1 and the frame 2, the plurality of plug-in parts 12 are first inserted into the top of the frame 2 so that the top of the injection molded covering 1 is hung on the frame 2 and a plurality of reliable assembly fulcrums are formed. Then, the plurality of first clamping parts 13 on the other circumferential edges of the covering body 11 are clamped onto the frame 2. During the clamping process, since the plug-in parts 12 form a reliable connection with the top of the frame 2, when the covering body 11 is clamped onto the frame 2 by squeezing or pulling, the top of the covering body 11 and the top of the frame 2 are not easy to separate. When the two sides and the bottom of the covering body 11 are squeezed or pulled, the top of the covering body 11 is limited by the frame 2, so that the first clamping parts 13 can be conveniently clamped onto the frame 2, and the situation that one side is engaged and then detached from the other side will not occur. After the assembly is completed, if the covering body 11 is subjected to an external force away from the frame 2 (such as along Figure 7 The plug-in portion 12 will block the separation of the covering body 11 and the frame 2, such as Figure 1 and Figure 7 As shown, under the joint action of multiple plug-in parts 12 and multiple first clamping parts 13, the injection molded covering 1 can prevent the injection molded covering 1 from being separated from the skeleton 2 when subjected to a large external drag force, which is beneficial to improving the connection reliability between the injection molded covering 1 and the skeleton 2 and enhancing the user experience.

[0047] It should be noted that the plug-in portion 12 can be a columnar structure, a plate structure or a bent structure extending in the vertical direction, and multiple plug-in portions 12, multiple first clip-on portions 13 and the covering body 11 are an integral injection-molded structure, which is beneficial to improving the connection reliability between the plug-in portion 12, the first clip-on portions 13 and the covering body 11, thereby improving the overall structural reliability of the injection-molded covering 1.

[0048] In some embodiments of this application, please refer to Figure 1 and Figure 7 The plug-in portion 12 includes a first folding plate 121, a second folding plate 122 and a third folding plate 123, which are sequentially connected in a Z-shape. When the plug-in portion 12 is inserted on the top of the frame 2, the frame 2 can be limited by the corner area formed by the first folding plate 121, the second folding plate 122 and the third folding plate 123, thereby improving the anti-detachment performance between the plug-in portion 12 and the frame 2. Figure 7 shown.

[0049] In the above embodiment, if there is a gap between the inner surface of the injection molded covering 1 and the outer surface of the frame 2 after the injection molded covering 1 and the frame 2 are assembled, when the user touches and squeezes the injection molded covering 1, a depression will be generated in the squeezed area, resulting in a poor touch of the car armrest.

[0050] In order to solve the above problems, in some embodiments of the present application, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 6 and Fig. 9 The inner surface of the covering body 11 has evenly distributed buffer pins 14. When the user touches the outer surface of the injection-molded covering 1, the covering body 11 slowly sinks under the action of the buffer pins 14. After the external force of the touch disappears, the covering body 11 slowly rebounds under the action of the buffer pins 14, achieving a soft touch similar to that of soft skin (such as genuine leather), which is beneficial to improving the user's driving experience.

[0051] It should be noted that in order to improve the connection reliability between the buffer pins 14 and the covering body 11 and reduce the difficulty of manufacturing the buffer pins 14, the plurality of buffer pins 14 and the covering body 11 are an integral injection molding structure. If the buffer pins 14 are of a complex and irregular structure, they are easily pulled by the mold during demolding, affecting the demolding efficiency, and in severe cases, the buffer pins 14 may be damaged during the pulling process.

[0052] In order to prevent the multiple buffer pins 14 on the inner surface of the cover body 11 from affecting the demolding, in some embodiments of the present application, please refer to Figure 3 The buffer pin 14 is a columnar structure, a conical structure or a truncated cone structure; the large diameter end of the conical structure or the truncated cone structure is connected to the inner surface of the covering body 11, and the axial direction of the buffer pin 14 is consistent with the demolding direction. When the buffer pin 14 is a cylindrical structure, the extension direction of its outer surface is consistent with the demolding direction; when the buffer pin 14 is a conical structure or a truncated cone structure, since its large diameter end is connected to the inner surface of the covering body 11 and the small diameter end is close to the mold surface, it is convenient to realize the demolding of multiple buffer pins 14.

[0053] The second aspect of the embodiment of the present application provides an armrest assembly, including the injection molded covering member 1 described in the above embodiment, and also including a frame 2, the top of the frame 2 has a plurality of avoidance grooves 21, the avoidance grooves 21 are arranged one by one with the plug-in portion 12, and the plug-in portion 12 is inserted in the avoidance groove 21, such as Figure 7 During the assembly process of the injection molded covering 1 and the frame 2, the avoidance groove 21 can cooperate with the plug-in portion 12 to achieve the initial positioning and limiting effect of the injection molded covering 1, so as to facilitate the rapid alignment and assembly between the injection molded covering 1 and the frame 2.

[0054] It should be noted that the avoidance groove 21 can be a recessed structure with a relatively large depth (more than 10 mm) at the top of the skeleton 2, or it can be a hollow groove structure that passes through the top plate of the skeleton 2. As long as the plug-in portion 12 of a certain depth can be plugged in or embedded in the avoidance groove 21, a reliable connection point can be formed between the injection molded covering 1 and the skeleton 2, thereby achieving rapid assembly and reliable connection between the injection molded covering 1 and the skeleton 2.

[0055] In some embodiments of this application, please refer to Figure 1 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Fig. 9 The skeleton 2 also includes a plurality of second clamping portions 22 sequentially arranged along the circumferential edge of the skeleton 2 . The second clamping portions 22 are matched with the first clamping portions 13 to achieve the clamping between the injection molded covering 1 and the skeleton 2 .

[0056] It should be noted that the first clamping portion 13 and the second clamping portion 22 can be clamping teeth, clamping grooves, or can be clamped together by flanging. Since the injection-molded covering 1 is made of polyvinyl fluoride (PVC) plastic particles and has greater elasticity, it is preferably clamped together by flanging, thereby increasing the clamping area to improve the reliability of the clamping. Specifically, the first clamping portion 13 has a U-shaped flanging structure, which is coated on the end of the second clamping portion 22, so that the second clamping portion 22 cannot be easily removed from the first clamping portion 13. Figure 7 , Figure 8 and Fig. 9 shown.

[0057] In order to further improve the connection reliability between the first clamping portion 13 and the second clamping portion 22, a clamping groove can be provided on the U-shaped flange structure of the first clamping portion 13, and a clamping tooth can be provided at the end of the second clamping portion 22. When the U-shaped flange structure covers the end of the second clamping portion 22, the clamping tooth and the clamping groove are also synchronously engaged. Figure 8 shown.

[0058] In the above embodiment, before the first clamping portion 13 and the second clamping portion 22 are engaged, the plug-in portion 12 needs to have a certain degree of freedom and elastic deformation in the avoidance groove 21, so as to facilitate fine-tuning the position of the injection-molded covering 1 to achieve engagement with the frame 2. After the engagement is completed, the movement of the plug-in portion 12 in the avoidance groove 21 needs to be restricted to avoid slight shaking of the plug-in portion 12 in the avoidance groove 21 and produce abnormal noise.

[0059] In order to solve the above problem, a slot is provided on the plug-in portion 12, and a limiting tooth 25 is provided on one side of the avoidance groove 21. When the first clamping portion 13 and the second clamping portion 22 are engaged, the limiting tooth 25 is also synchronously inserted into the slot of the plug-in portion 12 to limit the plug-in portion 12. Figure 7 This can prevent the plug-in portion 12 from shaking slightly in the avoidance groove 21 and causing abnormal noise.

[0060] In some embodiments of the present application, the armrest assembly further includes an elastic member 3, which is sandwiched between the covering body 11 and the frame 2. The double deformation of the covering body 11 and the elastic member 3 can further enhance the soft touch of the armrest assembly.

[0061] It should be noted that the elastic member 3 can be a component with excellent deformation ability such as a sponge pad or a latex pad. In order to avoid displacement of the elastic member 3 during use, the elastic member 3 needs to be limited. The elastic member 3 cannot be fixed by bolts or other components. If it is bonded by glue, it will have a negative impact on the odor and VOC of the whole vehicle.

[0062] In order to solve the above problems, in some embodiments of the present application, please refer to Figure 4 and Fig. 9 The frame 2 has a receiving groove 23, and the elastic member 3 is embedded in the receiving groove 23. The inner wall of the receiving groove 23 is used to limit the elastic member 3, so as to prevent the elastic member 3 from shifting during use.

[0063] In the above embodiment, the elastic member 3 and the buffer pin 14 can both play a role in improving the soft touch. Since the user usually places the arm on the top of the armrest, it is preferred that the accommodating groove 23 and the elastic member 3 are arranged on the top of the frame 2, and the buffer pin 14 is arranged on the side of the covering body 11, which can be used to fit with the side of the frame 2. Fig. 9 shown.

[0064] In some embodiments of this application, please refer to Figure 7 The outer surface of the frame 2 has a first positioning portion 24, and the inner surface of the covering body 11 has a second positioning portion 15, and the first positioning portion 24 and the second positioning portion 15 are matched in a concave-convex manner. If there is an error in the assembly position, the injection molded covering 1 will produce a bulge due to the failure of the first positioning portion 24 and the second positioning portion 15 to achieve concave-convex matching, which is convenient for the assembler to promptly discover and adjust the assembly between the injection molded covering 1 and the frame 2.

[0065] Specifically, the first positioning portion 24 is a recessed structure on the outer surface of the frame 2 , such as a groove or a pit, etc.; the second positioning portion 15 is a raised structure on the inner side of the cover body 11 , such as a ridge or a nail, etc.

[0066] In the above embodiment, in order to improve the appearance and texture of the armrest assembly, if the shape requires decorative stitching 4, stitching 4 can be sewn on the injection molded covering 1 to achieve an appearance comparable to that of a traditional soft skin with stitching. Figure 4 shown.

[0067] The third aspect of the present application also provides a car, comprising the armrest assembly described in the above embodiment. The armrest assembly can be assembled on the front and rear doors 5 of the car, which is convenient for users to place their arms and bring users a comfortable driving experience. Figure 4 and Fig.10 shown.

[0068] See also Figures 1 to 10 The method for making the above-mentioned injection molded covering 1 is as follows:

[0069] Step 1: The front model surface of the injection mold is completely copied according to the shape of the A surface (i.e., the visible surface, the outer surface) of the injection molded cover 1, and the rear model surface of the injection mold is completely copied according to the shape of the B surface (i.e., the invisible surface, the inner surface) of the injection molded cover 1;

[0070] Step 2: The injection molded covering 1 is manufactured through processes such as mold closing, filling, pressure holding, cooling, mold opening and demoulding. Polyvinyl fluoride plastic particles are preferably used for injection molding during filling.

[0071] Compared with traditional covering parts, the injection molded covering part 1 produced by the above method is produced by mold injection molding, and there is no need to cut the surface, no cutting waste is generated during the production process, and the raw material utilization rate is high, which can reach 100%. The injection molded covering part 1 can perfectly reproduce the shape design, and the structural design has a high tolerance, avoiding the minimum covering corner fillet requirements of the traditional covering process, and the appearance wrinkle problem caused by fabric accumulation and other reasons. Compared with the traditional covering process, the cost can be saved by about 20%, and it is suitable for large-scale production.

[0072] See also Figures 1 to 10 , the manufacturing method of the above-mentioned handrail assembly is as follows:

[0073] Step 1: Place the elastic member 3 in the receiving groove 23 of the frame 2. If a decorative stitching line 4 needs to be added to the injection molded covering 1, an industrial sewing machine is used to add the stitching line 4 to the injection molded covering 1.

[0074] Step 2: Insert the plug-in portion 12 into the avoidance groove 21 to achieve the initial positioning between the injection molded covering 1 and the frame 2. At this time, the plug-in portion 12 has a certain degree of freedom in the avoidance groove 21, which is convenient for adjusting the position of the injection molded covering 1 while forming a reliable connection point, so as to achieve engagement with the frame 2;

[0075] Step three: Wrap the first clamping portion 13 of the injection molded covering 1 around the second clamping portion 22 of the skeleton 2, so that the top inner surface of the injection molded covering 1 fits with the elastic member 3 and the top of the skeleton 2, and the buffer pins 14 on the inner side of the injection molded covering 1 fit with the outer side of the skeleton 2. At this time, the first positioning portion 24 and the second positioning portion 15 are concave-convex matched, and the limiting tooth 25 on the skeleton 2 is also inserted into the slot of the plug-in portion 12 to achieve complete engagement of the two.

[0076] By using the injection molded covering 1 to cover the periphery of the frame 2, the present application avoids the minimum covering fillet requirement of the traditional covering process and the appearance wrinkle problem caused by the accumulation of fabrics, etc. Compared with the transmission covering, the plug-in part 12 is provided on the covering body 11, which can form a reliable connection point when assembled with the frame 2, facilitating the rapid assembly between the injection molded covering 1 and the frame 2. It can avoid the inconsistency of manual covering and is more conducive to mass production.

[0077] During use, since the plug-in portion 12 is stably inserted in the avoidance groove 21 of the skeleton 2, the injection molded covering 1 can be prevented from being separated from the skeleton 2 when subjected to a large external drag force, thereby ensuring a reliable connection between the injection molded covering 1 and the skeleton 2, which is beneficial to improving the user's driving experience.

[0078] The armrest assembly provided in this application can avoid the use of glue during the manufacturing process, which is beneficial to ensure that the odor and VOC of the passenger compartment meet the use requirements.

[0079] The above embodiments are only preferred embodiments for fully illustrating the present application, and the protection scope of the present application is not limited thereto. Any equivalent substitution or change made by a person skilled in the art based on the present application is within the protection scope of the present application.

Claims

1. An injection molded covering (1), characterized in that: include: A covering body (11), wherein the covering body (11) has a containing space for covering the frame (2); A first clamping portion (13), wherein a plurality of the first clamping portions (13) are sequentially arranged along the circumferential edge of the accommodating space; A plug-in portion (12), wherein a plurality of the plug-in portions (12) are sequentially arranged along an edge of one side of the accommodating space, and the plug-in portion (12) extends toward the inside of the accommodating space and is used for being plugged into one side of the frame (2).

2. The injection molded covering (1) according to claim 1, characterized in that: The plug-in portion (12) comprises a first folding plate (121), a second folding plate (122) and a third folding plate (123); the first folding plate (121), the second folding plate (122) and the third folding plate (123) are sequentially connected to form a Z shape.

3. The injection molded covering (1) according to claim 1 or 2, characterized in that: The inner surface of the covering body (11) has evenly distributed buffer pins (14); the covering body (11), the plug-in portion (12), the first clamping portion (13) and the buffer pins (14) are an integral injection-molded structure.

4. The injection molded covering (1) according to claim 3, characterized in that: The buffer nail (14) is a columnar structure, a conical structure or a truncated cone structure; the large diameter end of the conical structure or the truncated cone structure is connected to the inner surface of the covering body (11).

5. An armrest assembly, comprising the injection molded covering member (1) according to any one of claims 1 to 4, characterized in that: It also comprises a frame (2), wherein the top of the frame (2) has a plurality of avoidance grooves (21), the avoidance grooves (21) are arranged in a one-to-one correspondence with the plug-in parts (12), and the plug-in parts (12) are inserted into the avoidance grooves (21).

6. The armrest assembly according to claim 5, characterized in that: The frame (2) further comprises a plurality of second clamping portions (22) arranged in sequence along the circumferential edge of the frame (2), wherein the second clamping portions (22) are arranged to match the first clamping portions (13).

7. The armrest assembly according to claim 5, characterized in that: The armrest assembly also includes an elastic member (3), and the elastic member (3) is sandwiched between the covering member body (11) and the frame (2).

8. The armrest assembly according to claim 7, characterized in that: The frame (2) has a receiving groove (23), and the elastic member (3) is embedded in the receiving groove (23).

9. The armrest assembly according to any one of claims 5 to 8, characterized in that: The outer surface of the frame (2) has a first positioning portion (24), the inner surface of the covering body (11) has a second positioning portion (15), and the first positioning portion (24) and the second positioning portion (15) are matched in a concave-convex manner.

10. An automobile, characterized in that: Comprising an armrest assembly as described in any one of claims 5 to 9.

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