A manufacturing process and assembly method for a rearview mirror housing

Abstract

The application belongs to the field of automobile parts, and provides a manufacturing process and an assembling method for a rearview mirror housing, comprising: a movable die seat, a movable die cavity block is arranged on the movable die seat, and an outer wall of the movable die cavity block is formed with a first forming surface for forming a first edge cover; a profiling block is arranged in the movable die seat, and an outer wall of the profiling block is formed with a second forming surface for forming a second edge cover. Compared with the prior art, the application has the advantages that the profiling block is in close abutment with the movable die cavity block, the surface of the first forming surface is flush with the surface of the second forming surface, the size precision and smooth transition of the product at the connecting position of the double edge covers are ensured, the profiling block and the movable die cavity block are synchronously abutted by the cooperating forming slider, the parting line of the first edge cover and the second edge cover is located on the same side, the parting line is avoided from appearing at the bending positions of the two edge covers, the manual or mechanical polishing process for the parting line is omitted, and the overall texture and grade of the rearview mirror housing are greatly improved.

Description

Technical Field

[0001] This invention belongs to the field of automotive parts, and specifically relates to a manufacturing process and assembly method for a rearview mirror housing. Background Technology

[0002] As an important part of the car's appearance, the rearview mirror housing is increasingly pursuing streamlined and complex designs to improve aesthetics and aerodynamic performance. Existing rearview mirror housings are usually manufactured using injection molding.

[0003] In existing technologies, rearview mirror housings are often designed with streamlined edges to enhance strength and aesthetics. Typically, the housing includes a first edge and a second edge, forming a specific angle between them. To achieve this angle, a clear dividing line (i.e., the parting line in the mold) appears between the first and second edges on the mirror housing formed by conventional mold structures. Since this parting line is very noticeable after injection molding, it disrupts the smooth transition and overall texture of the product surface. Consequently, the dividing line needs to be manually or mechanically ground and polished, increasing labor costs and equipment investment. Uneven grinding may also lead to a decrease in product dimensional accuracy or even surface scratches, thus affecting the product yield. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing a manufacturing process and assembly method for rearview mirror housings that features a simple structure, optimized parting line position, and ensures the product's appearance and texture.

[0005] The objective of this invention can be achieved by addressing the following technical problem: a manufacturing process for a rearview mirror housing is proposed, wherein the rearview mirror housing includes a first edge and a second edge, the second edge being connected to the first edge and forming an angle with it; the manufacturing process employs injection molding using a mold, the mold comprising: A moving mold base, on which a moving mold cavity block is disposed, the outer wall of the moving mold cavity block having a first forming surface for forming the first edge; The contour block is disposed inside the moving mold base, and the outer wall of the contour block is formed with a second forming surface for forming the second edge; when the contour block moves to abut against the moving mold cavity block, the surfaces of the first forming surface and the second forming surface are flush, and the included angle formed between the first forming surface and the second forming surface is greater than the included angle formed between the first edge and the second edge; A forming slider is disposed on the moving mold base. The forming slider can simultaneously abut against the sidewalls of the contour block and the moving mold cavity block in the horizontal direction to form a parting line on the same side of the first and second edges.

[0006] In the above-mentioned manufacturing process for a rearview mirror housing, a limiting block is formed on the forming slider, a limiting groove is formed in the moving mold base, and the limiting block movably abuts against the limiting groove, so that the outer wall of the forming slider is flush with the outer wall of the contour block and the moving mold cavity block.

[0007] In the manufacturing process of a rearview mirror housing described above, a demolding hole is provided in the moving mold cavity block, and a push rod is movably disposed in the demolding hole.

[0008] In the manufacturing process of the rearview mirror housing described above, a guide block is formed on the side wall of the contour block, and a guide groove is provided on the moving model cavity block, with the guide block movably engaged in the guide groove.

[0009] In the manufacturing process of the rearview mirror housing described above, the forming slider is provided with an oblique guide hole for the oblique guide post to be movably inserted.

[0010] In the above-mentioned manufacturing process for a rearview mirror housing, a moving model cavity groove is also provided inside the moving model cavity block, and a forming groove is formed between the moving model cavity block and the forming slider. Both the moving model cavity groove and the forming groove are used to form the positioning block at the edge of the first edging inner wall.

[0011] In the manufacturing process of the rearview mirror housing described above, the forming slider and the contour block together form a locking groove, which is used to form a locking block at the inner wall edge of the second edging.

[0012] In the manufacturing process of the rearview mirror housing described above, the difference between the included angle formed between the first molding surface and the second molding surface and the included angle formed between the first edge and the second edge is in the range of 6° to 8°.

[0013] In the manufacturing process of the rearview mirror housing described above, the difference between the included angle formed between the first molding surface and the second molding surface and the included angle formed between the first edge and the second edge is in the range of 3° to 15°.

[0014] The technical solution adopted by the present invention to solve its technical problem is to also propose a method for assembling a rearview mirror housing. The rearview mirror housing is manufactured using the above-mentioned manufacturing process. The rearview mirror includes a base and a mirror body and a mirror housing connected to the edge of the base. The assembly method has the following operation steps: S1. A reference block with a reference hole is opened on the base. The positioning block on the mirror housing is inserted into the reference hole to limit the first edge to the edge of the base. S2. Place the second edging on the outside of the base edge; S3. A stop frame is formed on the inner wall at the edge of the base, which squeezes the second edge to move into the mirror housing, so that the locking block on the mirror housing is engaged with the stop frame, thereby restricting the movement of the second edge relative to the base. S4. After assembly, both the first and second edging are flush with the outer surfaces of the base and the mirror body.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) The manufacturing process and assembly method for a rearview mirror housing of the present invention ensures that the surfaces of the first molding surface and the second molding surface are flush by the close contact between the contour block and the moving model cavity block, thus ensuring the dimensional accuracy and smooth transition of the double edge connection of the product. The molding slider simultaneously abuts against the contour block and the moving model cavity block, so that the parting lines of the first edge and the second edge are located on the same side, avoiding the parting line from appearing at the bend of the two edges, eliminating the need for manual or mechanical grinding of the parting line, and greatly improving the overall texture and grade of the rearview mirror housing.

[0017] (2) The angle formed between the forming surfaces of the moving model cavity block and the contour block is greater than the angle of the final product edge. Combined with the movable snap-fit ​​between the locking block and the stop frame, the first edge and the second edge are flush with the base and the outer surface of the mirror after assembly. This not only makes the appearance beautiful and seamless, but also has high connection strength, effectively preventing the mirror shell from loosening or falling off during use, thus improving the overall assembly quality and user experience of the vehicle.

[0018] (3) The included angle between the first molding surface and the second molding surface is set to be 6° to 8° larger than the actual included angle of the product. This ensures the smoothness of the mirror shell during demolding, optimizes the position of the parting line on the molded mirror shell, improves the aesthetics of the mirror shell, and provides a guarantee for the convenience and accuracy of subsequent assembly. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a schematic diagram of the structure between the moving model cavity block and the forming slider; Figure 3 This is a schematic diagram of the shape block structure; Figure 4 It is an exploded view of the forming slider, the contour block, and the moving model cavity block; Figure 5 This is a schematic diagram of the structure of the second edge banding formed by the mold before it is assembled to the base; Figure 6 This is a structural diagram of the second edge banding after it has been assembled to the base; Figure 7 This is a structural diagram of the base and the mirror housing.

[0020] In the diagram, 10 is the base; 100 is the reference block; 100a is the reference hole; 101 is the stop bracket; 11 is the mirror body; 12 is the mirror shell; 120 is the first edging; 120a is the positioning block; 121 is the second edging; and 121a is the locking block. 2. Moving mold base; 20. Moving mold cavity block; 200. First molding surface; 201. Demolding hole; 202. Guide groove; 203. Moving mold cavity groove; 204. Molding groove; 21. Limiting groove; 3. Contouring block; 30. Second forming surface; 31. Guide block; 4. Forming slider; 40. Limiting block; 41. Angled guide hole; 42. Locking groove. Detailed Implementation

[0021] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0022] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0023] like Figures 1 to 7 As shown, a manufacturing process for a rearview mirror housing 12 is described. The rearview mirror housing 12 includes a first edge 120 and a second edge 121. The second edge 121 is connected to the first edge 120 and forms an angle with it. The manufacturing process uses injection molding with a mold. The mold includes: a movable mold base 2, on which a movable mold cavity block 20 is disposed. The outer wall of the movable mold cavity block 20 forms a first molding surface 200 for molding the first edge 120; and a contour block 3 is disposed in the movable mold base 2. The outer wall of the contour block 3 forms a shape for molding the second edge. The second forming surface 30 of 121; when the contour block 3 moves to abut against the moving mold cavity block 20, the surfaces of the first forming surface 200 and the second forming surface 30 are flush, and the included angle formed between the first forming surface 200 and the second forming surface 30 is greater than the included angle formed by the first edge 120 and the second edge 121; the forming slider 4 is set on the moving mold base 2, and the forming slider 4 can simultaneously abut against the side wall of the contour block 3 and the moving mold cavity block 20 in the horizontal direction to form a parting line on the same side of the first edge 120 and the second edge 121.

[0024] like Figures 1 to 4As shown, the manufacturing process in this embodiment cleverly solves the technical problems of difficult demolding or insufficient molding accuracy of double-sided structures with included angles by using a mold with a specific structure for injection molding. Specifically, before the mold closes, the contour block 3 moves against the moving mold cavity block 20, so that the included angle between the molding surfaces of the two is greater than the included angle of the two sides of the final product. This design improves the smoothness of the demolding action after injection molding, effectively avoiding jamming or even deformation of the product during ejection due to the small included angle of the sides, and significantly improving the product yield and production efficiency. In addition, the introduction of the molding slider 4 in this embodiment allows the parting line to be accurately set on the same side of the two sides, which not only ensures the appearance of the product after molding, but also simplifies the design of the mold parting surface and reduces the complexity of mold manufacturing. Therefore, compared to traditional molds where the parting line is forced to be set on the connecting edge of the first edge 120 and the second edge 121 due to the forming requirements of the edge, resulting in obvious boundary problems on the product surface, this process, through the synchronous abutment design of the forming slider 4, forces the parting line to be transferred to the non-appearance surface on the same side of the edge. In addition, the angle formed between the two forming surfaces is greater than the angle between the two edges of the final product, so that the appearance surface of the product achieves a smooth transition without a boundary line. This eliminates the subsequent grinding process that must be carried out in the traditional process because the parting line is located at the corner, and significantly improves the overall texture of the rearview mirror housing 12.

[0025] A limiting block 40 is formed on the forming slider 4, and a limiting groove 21 is formed in the moving mold base 2. The limiting block 40 moves against the limiting groove 21, so that the outer wall of the forming slider 4 is flush with the outer wall of the contour block 3 and the moving mold cavity block 20.

[0026] like Figure 1 and Figure 2 As shown, in this embodiment, the limiting block 40 on the forming slider 4 cooperates with the limiting groove 21 in the moving mold base 2, which can precisely control the position of the forming slider 4 in the mold-closed state. This limiting structure ensures that the outer wall of the forming slider 4 is strictly flush with the outer wall of the contour block 3 and the moving mold cavity block 20, thereby eliminating product defects (such as flash) that may be caused by the position deviation of the forming slider 4, and ensuring the surface smoothness and flatness at the parting line of the rearview mirror housing 12. This structure enhances the stability of the mold, makes the product dimension accuracy higher, the appearance quality better, and reduces the workload of subsequent finishing processes.

[0027] The moving model cavity block 20 has a demolding hole 201, and a push rod (not shown in the figure, this structure is the same as the prior art, and will not be described in detail here) is movably disposed within the demolding hole 201. Furthermore, as... Figure 2 and Figure 3As shown, the ejector pin provides a direct and effective means of ejecting and demolding the injection-molded mirror housing 12. The ejector pin can be used to precisely act on the inner wall of the mirror housing 12 (mainly for demolding at the first edge 120 position), and smoothly eject the product from the moving mold cavity during the mold opening process. This solves the technical problem that mirror housing 12 with complex curved surfaces or edge structures is difficult to automatically detach. This design not only protects the appearance of the mirror housing 12 from damage, but also greatly improves the efficiency and reliability of automated production.

[0028] The sidewall of the contour block 3 is formed with a guide block 31, and the moving model cavity block 20 is provided with a guide groove 202, and the guide block 31 is movably engaged in the guide groove 202.

[0029] like Figure 3 and Figure 4 As shown, in this embodiment, the guide block 31 on the side wall of the contour block 3, in conjunction with the guide groove 202 on the moving mold cavity block 20, provides precise guidance and support for the movement of the contour block 3. This guiding structure ensures that the contour block 3 can accurately and smoothly abut against the moving mold cavity block 20 when the mold is closed, and can smoothly separate when the mold is opened. This effectively prevents the contour block 3 from shifting, jamming, or shaking during the movement, thereby ensuring the stability of the forming surface of the second edge 121, further improving the forming accuracy of the included angle between the double edges of the mirror shell 12, and extending the service life of the mold. It should be noted that the driving structure and working principle for the movement of the contour block 3 on the moving mold base 2 are the same as those in the prior art, and will not be described in detail here.

[0030] The molding slider 4 has an inclined guide hole 41 for the inclined guide post (set on the fixed mold base, not shown in the figure) to be movably inserted. The inclined guide hole 41 and the inclined guide post cooperate to form a power mechanism to drive the molding slider 4 to move horizontally. This driving method is a mature and reliable side core pulling or locking mechanism in injection molds. It can convert the vertical movement of mold opening and closing into the horizontal movement of molding slider 4, so that the movement of molding slider 4 is synchronized with the movement of injection molding machine, realizing automated control. It ensures that the slider can be firmly locked to form the cavity during injection and can be withdrawn in time to complete the core pulling action when the mold is opened. The structure is simple and compact, and the operation is stable and reliable.

[0031] The moving model cavity block 20 is also provided with a moving model cavity groove 203, and a forming groove 204 is formed between the moving model cavity block 20 and the forming slider 4. Both the moving model cavity groove 203 and the forming groove 204 are used to form the positioning block 120a at the inner edge of the first edge 120.

[0032] The moving mold cavity groove 203 within the moving mold cavity block 20 and the forming groove 204 formed between the forming slider 4 work together specifically to form the positioning block 120a at the inner edge of the first edge 120. This split-type forming design makes full use of the existing structural space of the mold, and can accurately form the positioning structure for subsequent assembly on the mirror housing 12 without the need for additional complex inserts or mechanisms. This not only simplifies the overall structure of the mold and reduces manufacturing costs, but also ensures the dimensional accuracy and positional accuracy of the positioning block 120a, laying the foundation for the precise assembly of the mirror housing 12 and the base 10.

[0033] The forming slider 4 and the contour block 3 together form a locking groove 42, which is used to form a locking block 121a at the inner wall edge of the second edge 121.

[0034] like Figure 3 As shown, as the forming slider 4 simultaneously abuts against the sidewalls of the contour block 3 and the moving model cavity block 20, the locking groove 42 is formed by the cooperation of the forming slider 4 and the contour block 3. The locking groove 42 is specifically used to form the locking block 121a at the inner edge of the second edge 121. The locking block 121a is a key structure for achieving quick snap-fit ​​fixation during the assembly of the mirror housing 12. Through this mold design, the locking functional part can be directly integrally molded during the injection molding process without the need for subsequent secondary machining or assembly, thus improving production efficiency. At the same time, the position and shape accuracy of the locking block 121a are guaranteed, ensuring that it can reliably snap-fit ​​with the stop frame 101 of the base 10 during assembly, thereby enhancing the structural stability of the mirror housing 12 after assembly.

[0035] The included angle formed between the first molding surface 200 and the second molding surface 30 (i.e. Figure 5 The angle formed by the first edge 120 and the second edge 121 shown, and the angle formed by the first edge 120 and the second edge 121 (i.e. Figure 6 The difference between the included angles shown is in the range of 6° to 8°.

[0036] like Figure 5 and Figure 6 As shown, in this embodiment, the included angle formed between the first molding surface 200 and the second molding surface 30 is set to be 6° to 8° larger than the actual edge-wrapping angle of the product. This is a specific value range that has been optimized. This angle difference ensures that the mirror housing 12 has sufficient clearance for demolding, avoiding scratches or whitening of the product surface due to excessive friction, while also preventing the final assembly performance of the second edge-wrapping 121 from being affected by an excessively large angle. This specific angle design achieves the best balance between ensuring the product's appearance quality and the mold's service life, extending the mold's service life and ensuring the assembly accuracy of the rearview mirror housing 12.

[0037] More preferably, the included angle formed between the first molding surface 200 and the second molding surface 30 (i.e. Figure 5 The angle formed by the first edge 120 and the second edge 121 shown, and the angle formed by the first edge 120 and the second edge 121 (i.e. Figure 6 The difference between the included angles shown is in the range of 3° to 15°. Preferably, the difference angle can be 6°, 8°, 10°, or 12°. This range expands the applicability of the process parameters, making them suitable for the production of rearview mirror housings made of different materials (such as PP, ABS, PC, etc. with different shrinkage rates) or with different structural dimensions. For materials with large shrinkage rates or special structures, operators can flexibly adjust the mold angle within this range, ensuring both the versatility of the mold design and the achievement of qualified demolding results under different working conditions, thus improving the diversity of process solutions.

[0038] A method for assembling a rearview mirror housing 12, wherein the rearview mirror housing 12 is manufactured using the aforementioned manufacturing process, wherein the rearview mirror includes a base 10 and a mirror body 11 and a mirror housing 12 connected to the edge of the base 10. The assembly steps for the mirror housing 12 are as follows: S1. A reference block 100 with a reference hole 100a is provided on the base 10. The positioning block 120a on the mirror housing 12 is inserted into the reference hole 100a to limit the first edge 120 at the edge of the base 10. S2. Place the second edging 121 on the outside of the edge of the base 10; S3. A stop frame 101 is formed on the inner wall at the edge of the base 10, which squeezes the second edge 121 to move into the mirror housing 12, so that the locking block 121a on the mirror housing 12 is movably engaged with the stop frame 101, thereby restricting the movement of the second edge 121 relative to the base 10. S4. After assembly, the first edge 120 and the second edge 121 are flush with the outer surfaces of the base 10 and the mirror body 11.

[0039] like Figures 5 to 7 As shown, through the integral injection molding of the above mold, the reference block 100 and the stop frame 101 are directly formed on the first edge 120 and the second edge 121 respectively. Since the included angle formed between the first edge 120 and the second edge 121 after molding is larger than the actual included angle (reference... Figure 5 (Structure shown), so during assembly, the positioning block 120a is pre-inserted into the reference hole 100a to provide a positioning reference for the connection between the first edge 120 and the base 10, accompanied by the worker applying... Figure 5The pressing force from right to left on the second edge 121, as shown, completes the assembly between the second edge 121 and the base 10 after the locking block 121a engages with the stop bracket 101. Thus, this embodiment achieves a quick, precise, and secure connection between the mirror housing 12 and the base 10 through a dual-cooperation method of "positioning block 120a inserting into reference hole 100a" and "locking block 121a engaging with stop bracket 101." This method is simple to operate, requiring no complex tools or fasteners (such as screws), reducing assembly difficulty and cost. By pressing the second edge 121, the locking block 121a engages with the stop bracket 101, utilizing the elastic deformation of the material to achieve self-locking. After assembly, both the first edge 120 and the second edge 121 are flush with the base 10 and the outer surface of the mirror body 11, resulting in a seamless and aesthetically pleasing appearance, high connection strength, and effectively preventing the mirror housing 12 from loosening or falling off during use, thus improving the overall assembly quality and user experience.

[0040] It should be noted that in this invention, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly specified. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0041] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0042] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A manufacturing process for a rearview mirror housing, the rearview mirror housing comprising a first edge and a second edge, the second edge being connected to the first edge and forming an angle with it, characterized in that, The manufacturing process employs injection molding using a mold, the mold comprising: A moving mold base, on which a moving mold cavity block is disposed, the outer wall of the moving mold cavity block having a first forming surface for forming the first edge; The contour block is disposed inside the moving mold base, and the outer wall of the contour block is formed with a second forming surface for forming the second edge; when the contour block moves to abut against the moving mold cavity block, the surfaces of the first forming surface and the second forming surface are flush, and the included angle formed between the first forming surface and the second forming surface is greater than the included angle formed between the first edge and the second edge; A forming slider is disposed on the moving mold base. The forming slider can simultaneously abut against the sidewalls of the contour block and the moving mold cavity block in the horizontal direction to form a parting line on the same side of the first and second edges.

2. The manufacturing process for a rearview mirror housing according to claim 1, characterized in that, A limiting block is formed on the forming slider, and a limiting groove is formed in the moving mold base. The limiting block moves against the limiting groove, so that the outer wall of the forming slider is flush with the outer wall of the contour block and the moving mold cavity block.

3. The manufacturing process for a rearview mirror housing according to claim 1, characterized in that, The moving model cavity has a demolding hole, and a push rod is movably installed in the demolding hole.

4. The manufacturing process for a rearview mirror housing according to claim 2, characterized in that, The sidewall of the contour block is formed with a guide block, and the moving model cavity block is provided with a guide groove, and the guide block is movably engaged in the guide groove.

5. The manufacturing process for a rearview mirror housing according to claim 1, characterized in that, The forming slider has oblique guide holes for the oblique guide post to be movably inserted.

6. The manufacturing process for a rearview mirror housing according to claim 4, characterized in that, The moving model cavity block is also provided with a moving model cavity groove, and a forming groove is formed between the moving model cavity block and the forming slider. Both the moving model cavity groove and the forming groove are used to form the positioning block at the edge of the first edge-sealing inner wall.

7. The manufacturing process for a rearview mirror housing according to claim 1, characterized in that, The forming slider and the contour block together form a locking groove, which is used to form a locking block at the inner wall edge of the second edging.

8. The manufacturing process for a rearview mirror housing according to claim 1, characterized in that, The difference between the included angle formed between the first molding surface and the second molding surface and the included angle formed between the first edge and the second edge is in the range of 6° to 8°.

9. The manufacturing process for a rearview mirror housing according to claim 1, characterized in that, The difference between the included angle formed between the first molding surface and the second molding surface and the included angle formed between the first edge and the second edge is in the range of 3° to 15°.

10. A method for assembling a rearview mirror housing, characterized in that, The rearview mirror housing is manufactured using the manufacturing process described in any one of claims 1 to 9. The rearview mirror includes a base and a mirror body and a mirror housing connected to the edge of the base. The assembly method operation steps are as follows: S1. A reference block with a reference hole is opened on the base. The positioning block on the mirror housing is inserted into the reference hole to limit the first edge to the edge of the base. S2. Place the second edging on the outside of the base edge; S3. A stop frame is formed on the inner wall at the edge of the base, which squeezes the second edge to move into the mirror housing, so that the locking block on the mirror housing is engaged with the stop frame, thereby restricting the movement of the second edge relative to the base. S4. After assembly, both the first and second edging are flush with the outer surfaces of the base and the mirror body.

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