Torsion spring fixing seat, front frame and roof sunroof

Abstract

The present invention discloses a torsion spring fixing seat for a front frame of a vehicle roof sunroof, the torsion spring fixing seat comprising: a slot for accommodating a torsion spring body, and a receiving seat having a receiving portion, wherein the receiving portion is suitable for inserting a short arm of a torsion spring bent into an N shape in a plane where an end surface of the torsion spring body is located. The torsion spring fixing seat according to the present invention eliminates the mounting hole on the front frame, eliminates the risk of water leakage of the vehicle roof sunroof, and makes the assembly of the torsion spring more convenient.

Description

Technical Field

[0001] The invention relates to a torsion spring fixing seat for a front frame of a vehicle roof skylight, a front frame comprising the torsion spring fixing seat, and a vehicle roof skylight comprising the front frame. Background Art

[0002] The car roof skylight usually includes skylight glass, guide rails, windshield, front frame and rear frame. The windshield changes the direction of the airflow passing through the car roof after passing through the windshield, avoiding the airflow from blowing directly to the passengers, and reducing the noise caused by the airflow when driving at high speed, thus improving the comfort of the ride.

[0003] like Figure 1 and Figure 2 As shown, the windshield net 1 for the roof skylight includes a windshield rod 2, a net portion (not shown in the figure), two torsion springs 3 and two windshield net fixing seats 4. The two ends of the windshield rod 2 are mounted on the guide rails 7 of the skylight so that the windshield rod 2 can be tilted or pressed down relative to the front frame 6. The upper edge of the net portion is fixed to the windshield rod 2, and the lower edge thereof is fixed to the front frame 6, so that when the windshield rod 2 is tilted or pressed down, the net portion can be opened or closed accordingly. The two ends of the torsion spring 3 are respectively connected to the front frame 6 and the windshield rod 2, and are used to apply a biasing force to the windshield rod 2, so as to apply a force to the windshield rod 2 to tilt it when the skylight glass is opened, and when the skylight glass is closed, the skylight glass overcomes the biasing force of the torsion spring 3 to press the windshield rod 2 down. The windshield net fixing seat 4 is arranged on the guide rail 7, which is used to receive the two ends of the windshield rod 2.

[0004] like Figure 3-Figure 7 As shown, the fixed connection between the torsion spring 3 and the front frame 6 is achieved through a mounting hole 61 and a slot 62 that penetrate the front frame 6. The torsion spring body 34 is arranged in the slot 62, and the short arm 35 of the torsion spring 3 passes through the mounting hole 61 on the front frame 6 and is fixed to the lower bottom surface 63 of the front frame 6. When the torsion spring 3 is working, the long arm 33 of the torsion spring 3 is subjected to the load pressed down by the windshield rod 2, and the short arm 35 of the torsion spring 3 relies on the support of the lower bottom surface 63 of the front frame 6 to form a force arm balance.

[0005] Regarding the fixing method of the torsion spring 3 and the front frame 6, since the torsion spring 3 is arranged in the dry area of ​​the front frame 6 and the existence of the mounting hole 61 through which the short arm 35 of the torsion spring 3 passes, on a slope exceeding the design limit or on an extremely rugged road surface, rainwater may splash onto the dry area, and there is a risk that water will enter the vehicle roof through the mounting hole 61. Moreover, in this solution, since the short arm 35 of the torsion spring 3 itself has a certain length, when the short arm 35 passes through the mounting hole 61 and the torsion spring body 34 is accommodated in the slot 62, the side wall of the slot 62 cannot fit with the end face and side surface of the spring body 34, especially the side surface of the spring body 34, because if so, the torsion spring will not have enough space to complete the above installation steps, or at least the above installation steps will become very difficult, or the mounting hole needs to have a larger opening. This will result in the spring body being unable to be stably installed, or difficult to install, or there is a greater risk of rainwater entering the vehicle roof through the mounting hole. Summary of the invention

[0006] An object of the present invention is to overcome the defects in the prior art and to provide a torsion spring fixing seat for a front frame of a roof sunroof, a front frame including the torsion spring fixing seat, and a roof sunroof including the front frame.

[0007] According to one aspect of the present invention, a torsion spring fixing seat for a front frame of a roof sunroof is characterized in that the torsion spring fixing seat includes: a slot for accommodating a torsion spring body, and a receiving seat having a receiving portion, wherein the receiving portion is suitable for inserting and fixing a short arm of a torsion spring bent into an N shape within a plane where an end face of the torsion spring body is located, wherein the receiving portion is configured as a blind hole or a concave edge.

[0008] Preferably, the diameter of the blind hole is substantially equal to the diameter of the short arm of the torsion spring.

[0009] Preferably, the slot includes a cavity surrounded by four side walls for accommodating the torsion spring body, two opposite side walls among the four side walls are suitable for fitting with the two end surfaces of the torsion spring body when the torsion spring body is accommodated in the cavity, and the other two opposite side walls among the four side walls are suitable for fitting with the side surface of the torsion spring body when the torsion spring body is accommodated in the cavity.

[0010] Preferably, a recessed portion is provided on the bottom surface of the slot, and a shape of the recessed portion is matched with a side surface of the torsion spring body.

[0011] Preferably, the spring fixing seat is made of metal.

[0012] According to another aspect of the present invention, a front frame for a vehicle roof sunroof is characterized in that the front frame includes the above-mentioned torsion spring fixing seat.

[0013] Preferably, the torsion spring fixing seat is fixed to the front frame or is integrally formed with the front frame.

[0014] According to yet another aspect of the present invention, a vehicle roof sunroof is characterized in that the vehicle roof sunroof comprises the above-mentioned front frame.

[0015] Preferably, the roof skylight also includes a windshield net, which includes a windshield rod, a net portion and a torsion spring, the end of the windshield rod is connected to a guide rail to be lifted and pressed down relative to the front frame, the upper edge of the net portion is connected to the windshield rod, the lower edge of the net portion is connected to the front frame, one end of the long arm of the torsion spring is connected to the windshield rod, and the torsion spring body and the short arm of the torsion spring are connected to the torsion spring fixing seat.

[0016] The positive effect of the present invention is that the torsion spring fixing seat according to the present invention eliminates the mounting hole on the front frame, eliminates the risk of water leakage of the roof skylight, and makes the assembly of the torsion spring more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other aspects of the present application will be more fully understood from the detailed description below in conjunction with the following drawings. It should be noted that the scales of the drawings may be different for the purpose of clear description, but this will not affect the understanding of the present application. In the drawings:

[0018] Figure 1 A schematic diagram of the three-dimensional structure of a windshield net and an upper surface of a front frame used for a roof skylight in the prior art is shown;

[0019] Figure 2 for Figure 1 A partial enlarged schematic diagram of the connection position between the windshield and the front frame is shown;

[0020] Figure 3 A schematic diagram of the three-dimensional structure of a windshield net for a roof skylight and a lower surface of a front frame in the prior art is shown;

[0021] Figure 4 for Figure 3 A partial enlarged schematic diagram of the A part shown;

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of the torsion spring installed in the slot in the prior art as viewed from the upper surface of the front frame;

[0023] Figure 6 It is a three-dimensional structural schematic diagram of the torsion spring installed in the slot in the prior art as viewed from the lower bottom surface of the front frame;

[0024] Figure 7 It is a schematic cross-sectional structure diagram of a torsion spring installed in a slot in the prior art, showing that the short arm of the torsion spring passes through the mounting hole and is installed on the lower bottom surface of the front frame;

[0025] Figure 8 A schematic diagram of the three-dimensional structure of a windshield net for a roof skylight and an upper surface of a front frame according to an embodiment of the present invention is shown;

[0026] Fig. 9 A schematic diagram of the three-dimensional structure of a windshield net for a roof skylight according to an embodiment of the present invention is shown;

[0027] Fig.10 A schematic diagram of a three-dimensional structure of a front frame including a torsion spring fixing seat for a roof sunroof according to an embodiment of the present invention is shown;

[0028] Fig.11 A schematic diagram of a three-dimensional structure showing a torsion spring installed in a torsion spring fixing seat according to an embodiment of the present invention;

[0029] Fig.12 A schematic cross-sectional structure diagram of a torsion spring installed in a torsion spring fixing seat according to an embodiment of the present invention is shown;

[0030] Fig.13 A schematic diagram of a three-dimensional structure of a front frame including a torsion spring fixing seat for a roof sunroof according to another embodiment of the present invention is shown;

[0031] Fig.14 for Fig.13 A partial enlarged schematic diagram of

[0032] Fig.15 A schematic diagram of a three-dimensional structure showing a torsion spring installed in a torsion spring fixing seat according to another embodiment of the present invention;

[0033] Fig.16 A schematic diagram of a three-dimensional structure showing a torsion spring installed in a torsion spring fixing seat according to another embodiment of the present invention;

[0034] Fig.17 A schematic cross-sectional structure diagram of a torsion spring installed in a torsion spring fixing seat according to another embodiment of the present invention is shown.

[0035] Description of reference numerals:

[0036] Windshield 1

[0037] Windshield 2

[0038] Torsion spring 3

[0039] Long Arm 33

[0040] Torsion spring body 34

[0041] Short arm 35

[0042] Windshield fixing seat 4

[0043] Front frame 6

[0044] Mounting hole 61

[0045] Card slot 62

[0046] Lower bottom surface 63

[0047] Guide Rail 7

[0048] Torsion spring fixing seat 100

[0049] Receiving seat 110

[0050] Blind hole 120

[0051] Card slot 130

[0052] Side walls 131, 132, 133, 134

[0053] Bottom 135

[0054] Depression 136

[0055] Cavity 137

[0056] Torsion spring 200

[0057] Torsion spring body 210

[0058] End surface 211, 212

[0059] Side surface 213

[0060] Short arm 220

[0061] Free end 230

[0062] Horizontal section 232

[0063] Front frame 300

[0064] Windscreen 400

[0065] Windshield 410

[0066] Crossbar 411

[0067] First side bar 412

[0068] Second side bar 413

[0069] Projection 414

[0070] Net 420

[0071] Windscreen fixing seat 430

[0072] Chute 431

[0073] Guide Rail 500

[0074] Concave edge 600

[0075] U-shaped hole 602

[0076] Semi-cylindrical surface 604 DETAILED DESCRIPTION

[0077] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0078] For the sake of convenience, the front side of the vehicle in the front-to-rear direction is defined as "front", the rear side is defined as "rear", the left side in the vehicle width direction is defined as "left", the right side is defined as "right", the upper side in the vertical direction of the vehicle is defined as "up", and the lower side is defined as "down". It should be understood that the above definitions of directions do not limit the scope of this application.

[0079] like Figure 8 , Fig. 9 As shown, the windshield net 400 for the roof sunroof includes a windshield rod 410, a net portion 420, two torsion springs 200 and two windshield net fixing seats 430. The two ends of the windshield rod 410 are mounted on the guide rails 500 of the sunroof so that the windshield rod 410 can be tilted or pressed down relative to the front frame 300. The upper edge of the net portion 420 is fixed to the windshield rod 410, and the lower edge thereof is fixed to the front frame 300, so that when the windshield rod 410 is tilted or pressed down, the net portion 420 can be opened or closed accordingly. The two ends of the torsion spring 200 are respectively connected to the front frame 300 and the windshield rod 410, and are used to apply a biasing force to the windshield rod 410, so as to apply a force to the windshield rod 410 to tilt it when the sunroof glass is opened, and when the sunroof glass is closed, the sunroof glass overcomes the biasing force of the torsion spring 200 to press the windshield rod 410 down. The windshield net fixing seat 430 is disposed on the guide rail 500 and is used to receive two ends of the windshield rod 410 .

[0080] like Figure 8 , Fig. 9 As shown, the windshield bar 410 includes a crossbar 411 and a first side bar 412 and a second side bar 413 extending from both ends of the crossbar 411. The first side bar 412 and the second side bar 413 extend at an angle relative to the crossbar 411 on the same side of the crossbar 411. In addition, as shown in FIG. Figure 8 , Fig. 9 As shown, the first side bar 412 and the second side bar 413 preferably extend parallel to each other to reduce the occupied space of the windshield bar 410 .

[0081] The ends of the windshield rod 410, i.e., the ends of the first side rod 412 and the second side rod 413 opposite to the end connected to the cross bar 411, are respectively mounted on the windshield net fixing seat 430. The end of the first side rod 412 is provided with a protrusion 414, which is inserted into the slide groove 431 of the windshield net fixing seat 430 and can slide and rotate in the slide groove 431. When the protrusion 414 is located at the first end ( Figure 8 When the convex portion 414 is at the second end (the right end shown in FIG. 1 ) opposite to the first end of the slide slot 431, the windshield rod 410 is in a depressed state and the net portion 420 is closed. Figure 8 ), the windshield rod 410 is in a raised state and the net portion 420 is unfolded.

[0082] The working process of the windshield net for the car roof sunroof is as follows: Warping process: When the sunroof glass is completely closed, the torsion spring 200 is in a stressed state. During the process of opening the sunroof glass, the windshield net 400 lacks the compressive force provided by the sunroof glass. Under the warping force provided by the torsion spring 200, the windshield rod 410 of the windshield net 400 moves upward and backward, and the protrusion 414 of the windshield rod 410 moves in the slide groove 431 of the windshield net fixing seat 430, and the net part 420 opens. Closing process: During the process of closing the sunroof glass, the sunroof glass overcomes the biasing force of the torsion spring 200, presses the windshield rod 410 of the windshield net 400 to move downward and forward, and the net part 420 closes.

[0083] like Figure 10-12 As shown, the torsion spring fixing seat 100 is used to fix the torsion spring body 210 and the short arm 220 of the torsion spring 200. Unlike the prior art solution in which the short arm of the torsion spring passes through the mounting hole penetrating the front frame and is fixed to the lower surface of the front frame, the present invention eliminates the mounting hole penetrating the front frame and instead provides a torsion spring fixing seat 100 including a receiving seat 110 on the upper surface of the front frame 300. The receiving seat 110 is provided with a vertical blind hole 120 to receive the short arm 220 of the torsion spring 200 in the blind hole 120. Fig.12 As shown, the free end 230 of the short arm 220 is bent in the end surface 211 of the torsion spring 200 to form an n-shape. The free end 230 of the short arm 220 is inserted into the vertical blind hole 120 of the receiving seat 110 to fix the short arm 220 of the torsion spring 200.

[0084] The torsion spring fixing seat 100 according to the present invention further includes a slot 130, which is used to accommodate the torsion spring body 210. The slot 130 is surrounded by four side walls 131, 132, 133, and 134 to form a cavity 137, and the torsion spring body 210 is accommodated in the cavity 137. In order to better fix the torsion spring body 210 in the slot 130, the two end faces 211 and 212 of the torsion spring body 210 are in contact with the two opposite side walls 131 and 133 of the slot 130, and the side surface 213 of the torsion spring body 210 is in contact with the other two opposite side walls 132 and 134 of the slot 130 on both sides, thereby limiting the translation of the torsion spring body 210 on the horizontal plane and the rotational freedom in two directions, and ensuring that the torsion spring body 210 is firmly fixed in the slot 130. In addition, the side surface 213 of the torsion spring body 210 is also in contact with the bottom surface 135 of the slot 130 to achieve vertical fixation of the torsion spring body 210 .

[0085] In some embodiments, the bottom surface 135 of the slot 130 has a recessed portion 136 whose shape is adapted to the side surface 213 of the torsion spring body 210 so that the bottom surface 135 of the slot 130 can better fit with the torsion spring body 210 to achieve a stable fixation of the torsion spring body 210 .

[0086] In some embodiments, the diameter of the short arm 220 of the torsion spring 200 is equal to the aperture of the blind hole 120, so as to achieve a fixed connection between the short arm 220 of the torsion spring 200 and the receiving seat 110. In some embodiments, the diameter of the short arm 220 of the torsion spring 200 can also be slightly larger than the aperture of the blind hole 120, and the short arm 220 of the torsion spring 200 and the blind hole 120 have an interference fit, so that the fixed connection between the short arm 220 of the torsion spring 220 and the receiving seat 110 is more stable. In some embodiments, the diameter of the short arm 220 of the torsion spring 200 may be slightly smaller than the aperture of the blind hole 120, and a plastic sheath (not shown in the figure) is sleeved on the free end 230 of the short arm 220 of the torsion spring 200, and then inserted into the blind hole 120 of the receiving seat 110. On the one hand, the plastic sheath can play a protective role, and on the other hand, it can reduce the requirements for the processing accuracy of the receiving seat 110. Even if there is an error in the size of the blind hole 120 of the receiving seat 110, the short arm 220 of the torsion spring 200 can be fixedly connected to the receiving seat 110 by sleeves of plastic sheaths of different sizes.

[0087] In some embodiments, the torsion spring fixing seat 100 according to the present invention may be an independent component, fixed to the front frame 300 in a known manner, such as by bonding to achieve a non-detachable fixed connection, or by snapping to achieve a detachable fixed connection, etc. In some embodiments, the torsion spring fixing seat 100 may be made of metal and embedded in the front frame 300 as an insert. In some embodiments, the torsion spring fixing seat 100 may be integrally formed with the front frame 300.

[0088] like Figure 13-17 FIG. 2 shows another embodiment of a torsion spring fixing seat according to the present invention. Different from the above embodiments, in this embodiment, a concave edge 600 is provided on the receiving seat 110 of the torsion spring fixing seat 100 to receive the short arm 220 of the torsion spring 200 in the concave edge 600. Fig.16 As shown, the portion of the "concave edge" receiving the free end 230 of the short arm 220 may be an open U-shaped hole 602, and one side of the U-shaped hole 602 is a semi-cylindrical surface 604 or a partial cylindrical surface. When the free end 230 of the cylindrical short arm 220 is received in the concave edge 600, it may fit with the semi-cylindrical surface 604. Fig.17 As shown, the free end 230 of the short arm 220 is bent in the end surface 211 of the torsion spring 200 to form an n-shape. The free end 230 of the short arm 220 and the transverse section 232 connected to the free end 230 are embedded in the concave edge 600 to fix the short arm 220 of the torsion spring 200.

[0089] The torsion spring fixing seat according to the present invention eliminates the mounting hole on the front frame, thereby eliminating the risk of water leakage from the roof skylight and making the assembly of the torsion spring more convenient.

[0090] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A front frame for a roof skylight, characterized in that: include: A torsion spring, the torsion spring comprising a torsion spring body and a short arm bent into an n-shape in a plane where an end surface of the torsion spring body is located; as well as A torsion spring fixing seat, the torsion spring fixing seat includes a slot for accommodating a torsion spring body and a receiving seat with a receiving portion, the slot includes a cavity surrounded by four side walls for accommodating the torsion spring body, two opposite side walls of the four side walls are suitable for fitting with the two end surfaces of the torsion spring body when the torsion spring body is accommodated in the cavity, and the other two opposite side walls of the four side walls are suitable for fitting with the side surface of the torsion spring body when the torsion spring body is accommodated in the cavity, the receiving portion is configured as a blind hole or a concave edge, the short arm is inserted and fixed in the receiving portion, so that the front frame does not need to be provided with a mounting hole through which the short arm passes.

2. The front frame according to claim 1, characterized in that: The hole diameter of the blind hole is substantially equal to the diameter of the short arm of the torsion spring.

3. The front frame according to claim 1, characterized in that: The portion of the concave edge receiving the free end of the short arm is an open U-shaped hole, and one side of the U-shaped hole is a semi-cylindrical surface or a partial cylindrical surface.

4. The front frame according to any one of claims 1 to 3, characterized in that: The bottom surface of the clamping slot is provided with a recessed portion, and the shape of the recessed portion is matched with the side surface of the torsion spring body.

5. The front frame according to any one of claims 1 to 3, characterized in that: The torsion spring fixing seat is fixed to the front frame or is integrally formed with the front frame.

6. A roof skylight, characterized in that: The roof sunroof comprises a front frame according to any one of claims 1-5.

7. The vehicle roof sunroof according to claim 6, characterized in that: The roof skylight also includes a windshield net, which includes a windshield rod, a net portion and a torsion spring. The end of the windshield rod is connected to a guide rail to be lifted and pressed down relative to the front frame. The upper edge of the net portion is connected to the windshield rod, and the lower edge of the net portion is connected to the front frame. One end of the long arm of the torsion spring is connected to the windshield rod, and the torsion spring body and the short arm of the torsion spring are connected to the torsion spring fixing seat.

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