A glove box rotating shaft structure

Abstract

The application relates to the field of automobile interiors, in particular to a glove box rotating shaft structure which comprises a mounting frame and a glove box assembly. A clamping jaw hole is arranged on the bottom of the glove box assembly and a pin shaft arranged on the front side of the bottom of the mounting frame penetrates into the clamping jaw hole and rotates in cooperation with the clamping jaw hole. The clamping jaw hole is designed as an arc-shaped hole, the arc shape of the clamping jaw hole is protruded towards the inner side of the mounting frame, and the pin shaft further slides in cooperation with the clamping jaw hole. The rotating center between the glove box assembly and the mounting frame is separated from the connecting point, and the rotating center is offset towards the outer surface of the mounting frame, so that the radius of the motion track of the bottom end of the glove box assembly is reduced, the requirement for the gap size between the decorative plate located at the bottom of the glove box assembly is reduced, the structure is simple and reliable, and the design freedom is increased.

Description

Technical Field

[0001] This application relates to the field of automotive interiors, and in particular to a glove box hinge structure. Background Technology

[0002] The glove box assembly is a common storage device in automobiles. It is usually connected to the glove box mounting frame on the passenger side by a pin at the bottom, so as to realize the opening and closing of the glove box assembly.

[0003] For aesthetic reasons, the pin is usually located within the mounting frame and on the inner side of the bottom of the glove box assembly. This results in a larger movement trajectory for the lower part when the glove box is flipped open from top to bottom in existing models. The center of rotation is close to the bottom trim panel in the vertical direction. If the glove box cover and the lower trim panel are fitted together, the gap should be at least ≥2.0mm. Figure 1 , Figure 2 , Figure 3 As shown.

[0004] Currently, some new energy vehicles already have designs to reduce gaps: matching appearance structures are designed at the bottom of the glove box, such as by setting a flange on the glove box mounting frame or outer cover to directly cover the gap generated when it is opened; or by using physical limiting elements to limit the range of motion of the glove box to ensure uniform gaps; or by using an electric drive system to precisely control the movement trajectory of the glove box to reduce the impact of mechanical tolerances.

[0005] All of the above solutions require the addition of auxiliary structures, which increases the complexity of the overall glove box structure and raises the cost. Utility Model Content

[0006] The technical problem to be solved by this utility model is that the rotation connection point between the existing glove box assembly and the mounting frame is located inside the glove box assembly, and the connection point coincides with the rotation center, which makes the motion trajectory of the bottom of the glove box assembly rotating around the rotation center easily interfere with the motion of the trim panel below.

[0007] Therefore, this utility model provides a glove box pivot structure. By improving the connection structure between the glove box assembly and the mounting frame, the rotation center is separated from the connection point. By shifting the rotation center to the outer surface of the glove box assembly, the movement trajectory of its bottom during flipping can be reduced without adding other components, thereby reducing the required gap between it and the trim panel.

[0008] The technical solution adopted by this utility model to solve its technical problem is: A glove box hinge structure includes a mounting frame, a glove box assembly, and A claw hole is formed on the inner side of the claw at the bottom of the glove box assembly. The claw hole allows a pin located on the front side of the bottom of the mounting frame to pass through, and the two are rotatably engaged. The claw hole is an arc-shaped hole, and the arc of the claw hole protrudes inward toward the mounting frame (the extension direction of the top of the arc of the claw hole is adapted to the outward opening direction of the glove box assembly), and the pin also slides with the claw hole.

[0009] By adopting the above technical solution, given that the pin can move along the length of the arc-shaped hole, the center of rotation between the glove box assembly and the mounting frame is separated from its connection point, and the center of rotation is located above the lower trim panel and offset towards the outer surface of the glove box assembly. That is, when the glove box assembly is closed, the pin is located at the top of the latch hole; when open, due to the gravity of the upper part of the glove box assembly, the pin rotates in the latch hole while also sliding from the top to the bottom of the latch hole.

[0010] Furthermore, when in the open state, the center of gravity of the glove box assembly is located on the outside of the pin in the horizontal direction.

[0011] By adopting a technical solution, the center of gravity can be shifted when the glove box assembly is opened, enabling the pin to slide smoothly in the chuck hole.

[0012] Furthermore, the center of the arc-shaped hole coincides with the rotation center, thereby ensuring the stability of the rotation center.

[0013] By adopting the above technical solution, the movement trajectory of the bottom of the glove box assembly is reduced during the opening process, thereby reducing the gap requirement between the bottom of the glove box assembly and the lower trim panel, so that the gap between the bottom of the glove box assembly and the trim panel can be designed to be ≤2mm.

[0014] When the glove box assembly is closed, the gap between its bottom and the trim panel is called the initial gap value, while the gap between its bottom and the trim panel during the rotation of the glove box assembly is called the motion gap value.

[0015] In existing solutions, the rotation center is located inward, resulting in a minimum movement clearance value for the glove box assembly that is smaller than the initial clearance value, and the difference is relatively large. To avoid movement interference between the bottom of the glove box assembly and the trim panel during flipping, a large initial clearance value needs to be set, and the shape of the bottom of the glove box assembly also needs to be limited. In this solution, due to the outward shift of the rotation center, the movement clearance value is greater than or equal to the initial clearance value, or the minimum movement clearance value is less than the initial clearance value, but the difference is small. In the above cases, not only can the design clearance value be reduced, but the shape of the bottom of the glove box assembly can also be more varied, increasing the freedom of design.

[0016] Furthermore, the claw is located on the inner side of the outer panel of the glove box at the bottom of the outer cover of the glove box assembly, and the top and bottom of the claw hole are close to the inner wall of the outer panel of the glove box.

[0017] The movement trajectory of the bottom of the glove box assembly during opening refers to the trajectory of the bottom of the outer panel of the glove box rotating around the rotation center. Therefore, by moving the rotation center outward, the distance between the rotation center and the top of the trim panel becomes closer, which in turn makes the radius of the movement trajectory smaller.

[0018] Furthermore, the angle corresponding to the arc of the claw hole is adapted to the opening and closing angle of the glove box assembly. The opening and closing angle of the glove box assembly can be controlled by the arc design of the claw hole.

[0019] Furthermore, the pin passes through the pivot hole formed on the front protrusion at the bottom of the mounting frame and is press-fitted with it, ensuring a stable connection between the two while also allowing them to be disassembled and replaced.

[0020] The beneficial effects of this utility model are: 1. Simple and reliable structure: Compared with the current complex methods of improving clearance, this solution can improve the connection and fit between the claw hole and the pin by modifying the shape of the claw hole, realizing the separation of the rotation center and the connection point; and the smooth sliding of the pin in the claw hole can be achieved by using the weight of the glove box assembly as a power source during opening and closing. 2. Smaller motion trajectory: Based on the separation of the rotation center and the connection point, this solution reduces the diameter of the bottom motion trajectory of the glove box assembly when it is opened and closed by moving the rotation center outward, thereby reducing the requirement for the size of the design clearance; 3. Increased design freedom: Since the movement trajectory does not intrude into the trim panel, the bottom shape of the cover does not need to be designed to prevent intrusion into the trim panel, thus allowing for greater design freedom for the cover. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a schematic diagram of the structure of this utility model.

[0023] Figure 2 This is a diagram showing the opening and closing state of the glove box assembly with the connection point coinciding with the rotation center in the existing design.

[0024] Figure 3 This is a structural schematic diagram of the existing glove box assembly.

[0025] Figure 4 This is a diagram showing the separation of the connection point and the rotation center of this utility model.

[0026] Figure 5 This utility model Figure 4 A magnified view of a portion of the image.

[0027] Figure 6 This is a diagram showing the open and closed states of the glove box assembly of this utility model.

[0028] Figure 7 This is a cross-sectional view (AA) of the glove box assembly of this utility model.

[0029] Figure 8 This is a schematic diagram of the mounting frame of this utility model.

[0030] Figure 9 This is a sectional view of the mounting frame BB of this utility model.

[0031] Figure 10 This is a schematic diagram of the pin shaft of this utility model.

[0032] In the picture: 1. Mounting frame; 2. Glove box assembly; 21. Cover plate; 22. Outer panel of glove box; 3. Connecting module; 31. Protruding claw; 311. Rotary shaft hole; 32. Clamping claw; 321. Clamping claw hole; 33. Pin; 4. Connection point; 5. Center of rotation; 6. Decorative panels. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0034] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] Reference Figure 1 , Figure 4 A glove box pivot structure, comprising a mounting frame 1, a glove box assembly 2, a decorative panel 6, and a connecting module 3.

[0037] The mounting frame 1 forms a receiving cavity. The glove box assembly 2 is a box structure and is installed in the mounting frame 1 through the connecting module 3. The decorative panel 6 is set below the mounting frame 1, and there is a gap between the top of the decorative panel 6 and the bottom of the glove box assembly 2.

[0038] With the direction facing the inner cavity of the mounting frame 1 as the inside, and the direction facing the opening of the mounting frame 1 as the outside, the glove box assembly 2 as the top, and the trim panel 6 as the bottom.

[0039] Reference Figures 4-9 The connecting module 3 includes a claw 32 located at the bottom of the outer cover 21 of the glove box assembly 2 and inside the outer panel 22 of the glove box, a protruding claw 31 located at the bottom front of the mounting frame 1, and a pin 33 for connecting the claw 32 and the protruding claw 31. The claw 32 has an arc-shaped claw hole 321 with rounded upper and lower end walls, and the diameter of the rounded end is the same as the radial width of the arc structure of the claw hole 321. The protruding claw 31 has a pivot hole 311. One set of claw holes 321 is directly opposite to at least one set of pivot holes 311. A set of pins 33 passes through the pivot hole 311 and then through the corresponding claw hole 321. The connection between the protruding claw 31 and the claw 32 is achieved through the pins 33. The connection point between the two is called the connection point 4. The glove box assembly 2 will rotate around a point when the cover 21 is opened. This point is called the rotation center 5.

[0040] During the opening of the glove box assembly 2 via the cover plate 21, the claw hole 321 and the pin 33 rotate relative to each other, while the pin 33 slides along the claw hole 321, thereby achieving the technical effect of the rotation center 5 deviating from the connection point 4. By setting the rotation center 5 to coincide with the center of the arc structure corresponding to the claw hole 321, when the concave side of the arc of the claw hole 321 faces the outer surface of the glove box assembly 2, the offset of the rotation center 5 from the connection point 4 can be controlled by adjusting the radius of the arc structure of the claw hole 321. When the rotation center 5 is located above the trim panel 6 and closer to the outer surface of the glove box assembly 2, the diameter of the movement trajectory of the bottom of the glove box outer panel 22 during the opening and closing of the glove box assembly 2 is smaller, and the required gap value between it and the lower trim panel 6 is also smaller, so that the required gap between the bottom of the glove box outer panel 22 and the trim panel 6 can be designed to be ≤2mm.

[0041] In one embodiment, reference Figure 5 If the trim panel 6, the closed cover plate 21, and the glove box outer panel 22 are all in the same plane, and the rotation center 5 is located exactly on the outer surface of the glove box assembly 2, then the bottom end of the glove box outer panel 22 is exactly at the bottom of its movement trajectory. At this time, the actual gap is at its minimum, meaning the actual gap value is equal to the design gap value, and the tolerance accumulation value ≤ design gap value ≤ 2mm. In this embodiment, during the opening and closing of the glove box assembly 2, the movement gap value between the bottom of the glove box outer panel 22 and the top of the trim panel 6 is ≥ the initial gap value.

[0042] In one embodiment, if the trim panel 6 is in the same plane as the closed cover 21 and the glove box outer panel 22, but the rotation center 5 is some distance from the outer surface of the glove box assembly 2, then the bottom of the glove box outer panel 22 is not at the bottom of its movement trajectory, and the design gap value needs to be increased accordingly. In this embodiment, during the opening and closing of the glove box assembly 2, the minimum movement gap value between the bottom of the glove box outer panel 22 and the top of the trim panel 6 is ≤ the initial gap value, but the difference is relatively small compared to existing solutions.

[0043] It should be noted that the tolerance accumulation value, also known as tolerance superposition, is a key step in mechanical design to analyze the total error after the assembly of parts. The purpose is to determine the impact of the accumulation of dimensional tolerances, geometric tolerances, motion freedom requirements, material and environmental adaptability requirements of multiple parts on the assembly clearance and fit accuracy. The specific calculation method is common knowledge in this field and will not be elaborated here.

[0044] In the existing design, without other auxiliary structures, the radius of the movement trajectory of the glove box outer panel 22 is too large because the connection point 4 coincides with the rotation center 5. In order to reduce the intrusion of the movement trajectory on the decorative panel 6, the bottom end face of the glove box outer panel 22 usually needs to be designed with a special structure, such as an arc structure. In this solution, due to the reduction of the movement trajectory, the glove box outer panel 22 can be designed with more shapes, such as a flat end face, etc. At the same time, the free end of the decorative panel 6 is also improved.

[0045] Reference Figures 4-7 To ensure the smooth sliding of the pin 33 in the claw hole 321 during the opening and closing of the glove assembly 2, the center of gravity of the glove box assembly 2 is designed to be located outside the pin 33 in the horizontal direction.

[0046] It should be noted that the locking structure between the glove box assembly 2 and the mounting frame 1 when closed can be achieved using existing technology, and will not be elaborated upon in this solution.

[0047] like Figure 4 As shown by the dotted line, when the glove box assembly 2 is in the closed state, the pin 33 is located at the top of the claw hole 321; as shown by the dotted line. Figure 4 As shown in the solid line, during the opening process of the glove box assembly 2, due to the further outward shift of the center of gravity, the claw hole 321 rotates relative to the pin 33, and at the same time, it slides synchronously relative to the pin 33 under the gravity of the glove box assembly 2. When the pin 33 slides to the bottom of the claw hole 321, the glove box assembly 2 is fully opened.

[0048] It will be apparent to those skilled in the art that the closing process follows the same stages as the opening process, but in the reverse order.

[0049] Reference Figures 4-7 Limiting pins are provided at symmetrical positions on the left and right side walls of the glove box assembly 2. The two limiting pins are inserted into the arc-shaped grooves opened on the left and right side walls of the mounting frame 1 and slide with them. The length and shape of the arc-shaped grooves are consistent with the movement trajectory of the limiting pins during the opening and closing of the glove box assembly 2. The cooperation between the limiting pins and the arc-shaped grooves is used to provide auxiliary connection between the glove box assembly 2 and the mounting frame 1.

[0050] Meanwhile, the angle corresponding to the arc of the claw hole 321 is adapted to the opening and closing angle of the glove box assembly 2. That is, the opening and closing angle of the glove box assembly 2 can be adjusted by adjusting the angle corresponding to the claw hole 321. Of course, it should be noted that after the angle of the claw hole 321 is adjusted, the length of the arc groove also needs to be adjusted accordingly.

[0051] It should be noted that, based on reasonable assembly requirements, the design angle of the claw hole 321 = the opening and closing angle of the glove box assembly 2 + the cumulative tolerance value at both ends of the claw hole 321.

[0052] In one embodiment, the top and bottom ends of the claw hole 321 are close to the inner wall of the glove box outer panel 22. Considering the mold process and the opening and closing rotation distance of the glove box assembly 2, the distance between the lowest position of the claw hole 321 and the inner surface of the glove box outer panel 22 is ≥3mm, and the distance between the highest position of the claw hole 321 and the inner surface of the glove box outer panel 22 is ≥3mm. The thickness of the glove box outer panel 22 is typically 10-20mm, and cannot be less than 8mm.

[0053] In this embodiment, the thickness of the outer panel 22 of the glove box is 2.5mm, the distance between the lowest position of the claw hole 321 and the inner surface of the outer panel 22 of the glove box is 5.5mm, and the distance between the highest position of the claw hole 321 and the inner surface of the outer panel 22 of the glove box is not less than 5.5mm. The glove box assembly 2 has an opening angle of 28°, and the corresponding angle of the claw hole 321 is 32° (meaning the cumulative tolerance value of the front and rear ends of the claw hole is 2°).

[0054] Reference Figures 8-10 The pivot hole 311 is a straight hole, and the pin 33 is interference-fitted with it, which facilitates disassembly and replacement.

[0055] In one embodiment, a non-slip patterned area is designed at the contact section between the pin 33 and the straight hole. The patterned area in the middle of the pin 33 will slightly interfere with the pivot hole 311 by 0.05mm, as is known in the art.

[0056] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined by the scope of the claims.

Claims

1. A glove box hinge structure, characterized in that, include, Mounting frame (1), glove box assembly (2) and A claw hole (321) is formed on the claw (32) at the bottom of the glove box assembly (2). The claw hole (321) is an arc-shaped hole, and the concave side of the arc-shaped hole faces the outer surface of the glove box assembly (2). Pin (33) is installed on the bottom front side of the mounting frame (1); The pin (33) passes through the claw hole (321) and rotates to engage with it, while the pin (33) also slides to engage with the claw hole (321); During the rotational opening and closing of the glove box assembly (2), the pin (33) rotates in the claw hole (321) and slides along the length direction of the claw hole (321), causing the rotation center (5) of the glove box assembly (2) to separate from the connection point (4) between the glove box assembly (2) and the mounting frame (1); The rotation center (5) moves toward the outer surface of the glove box assembly (2), and the radius of the movement trajectory at the bottom of the glove box assembly (2) is reduced, thereby reducing the requirement for a smaller gap between the glove box assembly (2) and the lower trim panel (6).

2. The glove box shaft structure according to claim 1, characterized in that, The center of the arc corresponding to the claw hole (321) coincides with the rotation center (5).

3. The glove box rotating shaft structure according to claim 2, characterized in that, The distance between the rotation center (5) and the bottom of the glove box assembly (2) is used as the radius of the motion trajectory of the bottom of the glove box assembly (2).

4. The glove box rotating shaft structure according to claim 2, characterized in that, The claw (32) is located on the inner side of the glove box outer panel (22) at the bottom of the outer cover plate (21) of the glove box assembly (2), and the top and bottom of the claw hole (321) are close to the inner wall of the glove box outer panel (22).

5. The glove box shaft structure according to claim 4, characterized in that, The gap between the bottom of the outer panel (22) of the glove box and the mating panel (6) below it increases as the distance between the rotation center (5) and the outer surface of the glove box assembly (2) increases.

6. The glove box rotating shaft structure according to claim 1, characterized in that, The pin (33) passes through the pivot hole (311) formed on the front protrusion (31) at the bottom of the mounting frame (1) and is press-fitted with it; The pivot hole (311) is directly opposite the claw hole (321).

7. The glove box rotating shaft structure according to claim 1, characterized in that, The upper and lower end walls of the claw hole (321) are arcs, and the diameter of the arc is consistent with the radial width of the arc hole.

8. The glove box shaft structure according to claim 1, characterized in that, The center of gravity of the glove box assembly (2) is located on the outside of the pin (33) in the horizontal direction.

9. The glove box rotating shaft structure according to claim 2, characterized in that, The angle corresponding to the arc of the claw hole (321) is adapted to the opening and closing angle of the glove box assembly (2).

10. The glove box shaft structure according to claim 6, characterized in that, The pin (33) is interference-fitted with the rotating shaft hole (311) through the patterned area.

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