A door check mounting bracket and method of use thereof

Abstract

The application discloses a kind of car door limiter mounting bracket and its using method.The car door limiter mounting bracket, including bracket main body, bracket main body includes bottom plate and lug plate, a first mounting hole for being fixedly connected with vehicle body is provided on bottom plate, a hinged hole for being hinged with limiting arm is provided on lug plate, auxiliary positioning plate is rotatably provided on bottom plate by pivot, a second mounting hole for being fixedly connected with vehicle body is provided on auxiliary positioning plate, auxiliary positioning plate can have two position states around pivot: ① folding state: auxiliary positioning plate overlaps with bottom plate;② unfolded state: auxiliary positioning plate deviates from bottom plate, only partially overlaps with bottom plate at pivot.In installation, it can be folded, small space occupation, easy to pass through smaller door through hole, double-hole is fixed on the side wall of vehicle body, can effectively reduce the problem of bracket main body rotation when installation.

Description

Technical Field

[0001] This invention relates to the field of automotive body technology, specifically to a door limiter mounting bracket and its usage method. Background Technology

[0002] Door limiters are typically installed on the doors and side panels of a vehicle to restrict the opening degree of the door. During the installation process on the final assembly line, the door limiters pass through a small hole in the door and are then installed onto the side panel. The mounting brackets typically use... Figure 1 The single-hole mounting bracket shown requires little space and can easily pass through the door opening. However, when fixing the single-hole mounting bracket, the tightening torque during bolt tightening can cause the bracket to rotate. If the rotation angle is too large, the limit arm will become misaligned, leading to stress concentration. After repeated opening and closing of the door, the limiter may fatigue and break.

[0003] To solve the above problems, the industry solution is to add a limiting boss to the mounting bracket to prevent rotation, or to use... Figure 2 The diagram shows two mounting holes. The added limiting boss is on the back of the bracket and mates with the side panel sheet metal opening. However, the accuracy of the root radius of the boss during stamping is difficult to control, and its location on the back of the mounting bracket often results in poor fit with the sheet metal hole diameter, limiting the improvement effect. While the double-hole mounting can partially solve the bracket rotation problem caused by bolt tightening force, during tightening, the torque generated on the mounting bracket by the two bolts is in the same direction, causing the mounting bracket to rotate relative to the limiting arm. This can cause the limiting arm to become stuck at the hinge, affecting its rotational performance. Furthermore, the double mounting holes require a large space, necessitating a larger corresponding opening on the door, leading to layout difficulties. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a door limiter mounting bracket and its usage method. It can be folded during installation, occupies little space, can easily pass through small door openings, and is fixed to the side panel of the vehicle body with two holes, which can effectively reduce the problem of the main body rotating during the installation of the bracket.

[0005] To address the aforementioned technical problems, this invention provides a door limiter mounting bracket, comprising a bracket body, which includes a base plate and an ear plate. The base plate has a first mounting hole for fixed connection with the vehicle body, and the ear plate has a hinge hole for hinged connection with a limit arm. An auxiliary positioning plate is rotatably mounted on the base plate via a pivot, and the auxiliary positioning plate has a second mounting hole for fixed connection with the vehicle body. The auxiliary positioning plate can rotate around the pivot to have two position states: ① Folded state: the auxiliary positioning plate overlaps with the base plate; ② Unfolded state: the auxiliary positioning plate deviates from the base plate and only partially overlaps with the base plate at the pivot.

[0006] In the aforementioned door limiter mounting bracket, an auxiliary positioning plate is rotatably connected to the bracket body via a pivot, dividing the door limiter mounting bracket into two relatively movable parts. This allows for two states of the door limiter. When passing through the door through-hole, the two parts are folded, occupying little space and passing through through a through-hole size comparable to that required for a single mounting hole bracket, making it easy to pass through. When installed at the side panel mounting location, the two parts are unfolded, achieving dual-point installation. Simultaneously tightening the fixing bolts on both parts allows the rotational torque generated by the two fixing bolts on the bracket and the limiter arm to cancel each other out, effectively reducing the rotation of the bracket body caused by bolt tightening force. This makes the limiter arm rotate flexibly, increases the fixed installation force-bearing surface, and reduces the stress on the limiter and side panel sheet metal.

[0007] It should be noted that in the ② unfolded state: the auxiliary positioning plate is offset from the base plate, which means that by rotating the auxiliary positioning plate, the main body of the auxiliary positioning plate is spaced at a certain angle from the main body of the base plate, and only partially overlaps with the base plate at the pivot point.

[0008] As an improvement to the door limiter mounting bracket of the present invention, when the door limiter mounting bracket is fixed to the side panel of the vehicle body: the auxiliary positioning plate is in an unfolded state, and the axes of the second mounting hole, the rotating shaft and the first mounting hole are in the same plane.

[0009] Since the auxiliary positioning plate has many possible positions when it is in the unfolded state, although dual-point installation can be achieved in any unfolded position, when the axes of the second mounting hole, the rotating shaft and the first mounting hole are in the same plane, the tightening force of the fixing bolts in the first mounting hole and the second mounting hole is transmitted to the rotating shaft in a collinear and opposite direction, which can effectively cancel each other out.

[0010] Furthermore, the distances from the axes of the second mounting hole and the first mounting hole to the axis of the rotating shaft are the same. This ensures that the force transmitted from the tightening force of the fixing bolts in the first and second mounting holes to the rotating shaft is not only collinear and opposite in direction, but its magnitude can also be easily controlled for effective cancellation. For example, if the same bolt tightening force is applied to both the first and second mounting holes simultaneously, the rotational torque exerted on the rotating shaft by the bolt tightening force of the bracket body will be precisely canceled out by the rotational torque exerted on the rotating shaft by the auxiliary positioning plate, ensuring that the bracket body does not rotate and that the support position is accurate.

[0011] As another improvement to the door limiter mounting bracket of the present invention, the base plate and the ear plate are arranged in an L-shape, and the width of the base plate is greater than that of the ear plate, so that one side of the base plate extends beyond the corresponding side of the ear plate. The entire door limiter mounting bracket has a simple and ingenious structural design and is easy to use.

[0012] Furthermore, the pivot is located at the bottom edge of the base plate and on the outside of the ear plate.

[0013] Furthermore, both the base plate and the auxiliary positioning plate are rectangular blocks, and the pivot is provided at one of their overlapping corners.

[0014] Preferably, the rotation angle of the auxiliary positioning plate from ① folded state to ② unfolded state is 90° to 180°.

[0015] As a further improvement of the door limiter mounting bracket of the present invention, the limiting arm is provided on the side of the ear plate away from the base plate.

[0016] Furthermore, the auxiliary positioning plate is provided with a flange, which is arranged in an L-shape with the auxiliary positioning plate. The width of the flange is greater than that of the auxiliary positioning plate, so that one end of the flange protrudes from the corresponding side of the auxiliary positioning plate. When the door limiter mounting bracket is fixed to the side of the vehicle body, the protruding end of the flange can fit against the bottom surface of the end of the limiting arm.

[0017] After the entire door limiter mounting bracket is installed and fixed on the side panel of the vehicle body, the flanged end fits against the bottom surface of the limit arm's end, with both remaining horizontal, providing auxiliary support for the limit arm. Note that the bottom surface of the limit arm's end here refers to the bottom surface at the hinge hole after the limit arm is installed and fixed.

[0018] To solve the above-mentioned technical problems, the present invention provides a method for using the aforementioned door limiter mounting bracket, comprising the following steps: Step 1: Hinging the end of the limit arm, which is equipped with the limit box, to the hinge hole of the ear plate; Step 2: Rotating the auxiliary positioning plate to overlap with the base plate, so that it is in a folded state; Step 3: Keeping the auxiliary positioning plate in the folded state, placing the limit box, the limit arm, and the door limiter mounting bracket as a whole into the interior of the door sheet metal, and passing the door limiter mounting bracket through the through hole of the door; Step 4: Rotating the auxiliary positioning plate to the unfolded state; Step 5: Fixing the base plate and the auxiliary positioning plate to the side panel of the vehicle body by screwing bolts into the first mounting hole and the second mounting hole, respectively.

[0019] In the above-described method of use, the foldable nature of the door limiter mounting bracket can be utilized to reduce its own structural space and the size of the door through-hole by folding; when fixed, it can be unfolded to achieve two-point installation and avoid rotational displacement of the mounting bracket.

[0020] Furthermore, step five includes: step a1: initially tightening the first bolt through the first mounting hole onto the side panel of the vehicle body; step a2: initially tightening the second bolt through the second mounting hole onto the side panel of the vehicle body; step a3: tightening the first bolt and the second bolt in sequence; step a4: finally tightening the first bolt and the second bolt in sequence.

[0021] Both the first and second bolts are tightened in three stages: initial tightening, secondary tightening, and final tightening. The tightening sequence is alternating, which can effectively reduce the rotational displacement of the base plate and auxiliary positioning plate during the tightening operation, thereby reducing the deflection of the limit arm.

[0022] In summary, by adopting the above-mentioned door limiter mounting bracket and its usage method, the foldability of the door limiter mounting bracket is utilized to reduce the size of the door through-hole, achieve dual-point installation, and avoid rotational displacement of the mounting bracket. Attached Figure Description

[0023] In the attached diagram:

[0024] Figure 1 The structural diagram shows a single mounting hole for the door limiter mounting bracket.

[0025] Figure 2 The diagram shows the structure of the door limiter mounting bracket with two mounting holes.

[0026] Figure 3 This is a structural diagram of the folded state of the door limiter mounting bracket of the present invention.

[0027] Figure 4 This is a structural diagram of the installation state of the door limiter mounting bracket of the present invention.

[0028] Figure 5 This is a front view of the installation state of the door limiter mounting bracket of the present invention.

[0029] Figure 6 This is a structural diagram of the door limiter mounting bracket of the present invention, which has a flange.

[0030] In the diagram, 1. Support body; 11. Base plate; 12. Ear plate; 13. First mounting hole; 14. Hinge hole; 2. Limiting arm; 3. Rotating shaft; 4. Auxiliary positioning plate; 41. Second mounting hole; 42. Flanged edge; 5. Limiting box. Detailed Implementation

[0031] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. It should be noted that these descriptions of the embodiments are for the purpose of helping to understand the present invention, but do not constitute a limitation thereof.

[0032] Example 1

[0033] Figure 3-6This invention illustrates a door limiter mounting bracket. For example... Figure 3 and Figure 4 As shown, the door limiter mounting bracket includes a bracket body 1, which includes a base plate 11 and an ear plate 12. The base plate 11 is provided with a first mounting hole 13 for fixed connection with the vehicle body, and the ear plate 12 is provided with a hinge hole 14 for hinge connection with the limit arm 2. An auxiliary positioning plate 4 is rotatably mounted on the base plate 11 via a rotating shaft 3, and the auxiliary positioning plate 4 is provided with a second mounting hole 41 for fixed connection with the vehicle body.

[0034] In use, the auxiliary positioning plate 4 can rotate around the pivot 3 to have two position states: ① as Figure 3 The folded state shown: The auxiliary positioning plate 4 overlaps with the base plate 11, maintaining a folded state when passing through the door aperture, occupying little space, easy to pass through, and the door aperture can also be designed to be smaller; ② As shown Figure 4 The unfolded state shown is as follows: the auxiliary positioning plate 4 is offset from the base plate 11, and the main body of the auxiliary positioning plate 4 is spaced at a certain angle from the main body of the base plate 11, only partially overlapping the base plate 11 at the pivot 3.

[0035] Optionally, the base plate 11 and the ear plate 12 are arranged in an L-shape, with the width of the base plate 11 greater than that of the ear plate 12, so that one side of the base plate 11 extends beyond the corresponding side of the ear plate 12. The pivot 3 is located at the bottom edge of the base plate 11 and on the outside of the ear plate 12. Both the base plate 11 and the auxiliary positioning plate 4 are rectangular blocks, and the pivot 3 is located at one of their overlapping corners. The entire door limiter mounting bracket structure is simple, ingenious, and easy to use.

[0036] Optional, such as Figure 4 and Figure 5 As shown, since the auxiliary positioning plate 4 has multiple possible positions when it is in the unfolded state, although dual-point installation can be achieved in any unfolded position, when the axes of the second mounting hole 41, the rotating shaft 3, and the first mounting hole 13 are in the same plane, the forces transmitted from the tightening force of the fixing bolts in the first mounting hole 13 and the second mounting hole 41 to the rotating shaft 3 are collinear and opposite in direction, thus effectively canceling each other out. Therefore, when the door limiter mounting bracket is fixed to the side panel of the vehicle body: the auxiliary positioning plate 4 is in the unfolded state, and the axes of the second mounting hole 41, the rotating shaft 3, and the first mounting hole 13 are in the same plane, as shown... Figure 5 As shown.

[0037] Optional, such as Figure 5As shown, the distances from the axes of the second mounting hole 41 and the first mounting hole 13 to the axis of the rotating shaft 3 are the same, i.e., d1 = d2. This ensures that the force transmitted from the tightening force of the fixing bolts in the first mounting hole 13 and the second mounting hole 41 to the rotating shaft 3 is not only collinear but also opposite in direction, and their magnitudes can be easily controlled for effective cancellation. For example, if the same bolt tightening force is applied to both the first mounting hole 13 and the second mounting hole 41 simultaneously, the rotational torque exerted on the rotating shaft 3 by the bolt tightening force of the bracket body 1 will be precisely canceled out by the rotational torque exerted on the rotating shaft 3 by the auxiliary positioning plate 4, ensuring that the bracket body 1 does not rotate and that the support position is accurate.

[0038] Optionally, the auxiliary positioning plate 4 can be rotated from ① folded state to ② unfolded state by an angle of 90° to 180°. Since both the auxiliary positioning plate 4 and the base plate 11 are rectangular plates, their long sides can overlap when folded, and in the final installation state, the long sides of the auxiliary positioning plate 4 can be rotated 180° to be parallel to each other.

[0039] Optionally, when the door limiter mounting bracket is fixed to the side of the vehicle body, the side of the auxiliary positioning plate 4 contacts and abuts against the side of the ear plate 12 to further assist in limiting the movement and prevent the bracket body 1 from rotating.

[0040] like Figure 6 As shown, a limiting arm 2 is provided on the side of the ear plate 12 away from the base plate 11. A flange 42 is provided on the auxiliary positioning plate 4. The flange 42 and the auxiliary positioning plate 4 are arranged in an L-shape. The width of the flange 42 is greater than that of the auxiliary positioning plate 4, so that one end of the flange 42 protrudes from the corresponding side of the auxiliary positioning plate 4. When the door limiter mounting bracket is fixed to the side of the vehicle body, the protruding end of the flange 42 can fit against the bottom surface of the end of the limiting arm 2 to provide auxiliary support for the limiting arm 2.

[0041] The present invention provides a method for using the above-mentioned door limiter mounting bracket, comprising the following steps:

[0042] Step S10: Hinge the end of the limiting arm 2, which houses the limiting box 5, to the hinge hole 14 of the ear plate 12. The limiting arm 2 is located on the side of the ear plate 12 away from the bottom plate 11, i.e. Figure 4 On the bottom surface shown.

[0043] Step S20: Rotate the auxiliary positioning plate 4 to overlap with the base plate 11, so that the auxiliary positioning plate 4 is in a folded state, as shown. Figure 3 As shown, this reduces the overall space.

[0044] Step S30: Place the limiting box 5, the limiting arm 2, and the door limiter mounting bracket as a whole inside the door sheet metal, and pass the door limiter mounting bracket through the door's through-hole. Keep the auxiliary positioning plate 4 in a folded position for easy passage through the door through-hole.

[0045] Step S40: Rotate the auxiliary positioning plate 4 to the unfolded state. The auxiliary positioning plate 4 can be rotated 180° clockwise from the folded state to reach the desired position. Figure 4 The position and orientation are shown.

[0046] Step S50: By screwing bolts into the first mounting hole 13 and the second mounting hole 41, the base plate 11 and the auxiliary positioning plate 4 are fixed to the side panel of the vehicle body, respectively. Specifically, this includes:

[0047] Step a1: Pass the first bolt through the first mounting hole 13 and initially tighten it onto the side panel of the vehicle body;

[0048] Step a2: Pass the second bolt through the second mounting hole 41 and initially tighten it onto the side panel of the vehicle body;

[0049] Step a3: Tighten the first bolt and the second bolt in sequence;

[0050] Step a4: Tighten the first bolt and the second bolt in sequence.

[0051] The purpose of the initial tightening is to screw the corresponding bolts into their respective positions. Optionally, the torque of the second tightening is 50% of the final tightening torque.

[0052] Both the first and second bolts are fixed in three stages: initial tightening, secondary tightening, and final tightening. Moreover, the tightening sequence alternates with each other, which can effectively reduce the stress and strain on the base plate 11 and the auxiliary positioning plate 4 from the tightening operation. The dual-point fixing can also reduce the rotational displacement of the support body 1.

[0053] Optionally, the first mounting hole 13 and the second mounting hole 41 are the same size, the first bolt and the second bolt are also the same size, and the tightening torque, i.e. the final tightening torque, is also the same.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit its scope of protection. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that after reading the present invention, they can still make various changes, modifications or equivalent substitutions to the specific implementation of the invention, but these changes, modifications or equivalent substitutions are all within the scope of protection of the pending claims of the invention.

Claims

1. A door limiter mounting bracket, characterized in that, The bracket includes a main body (1), which includes a base plate (11) and an ear plate (12). The base plate (11) is provided with a first mounting hole (13) for fixed connection with the vehicle body. The ear plate (12) is provided with a hinge hole (14) for hinge connection with the limiting arm (2). An auxiliary positioning plate (4) is rotatably provided on the base plate (11) via a rotating shaft (3). The auxiliary positioning plate (4) is provided with a second mounting hole (41) for fixed connection with the vehicle body. The auxiliary positioning plate (4) can have two position states when rotated around the rotating shaft (3): ① Folded state: the auxiliary positioning plate (4) overlaps with the base plate (11); ② Unfolded state: the auxiliary positioning plate (4) deviates from the base plate (11) and only partially overlaps at the rotating shaft (3). When the door limiter mounting bracket is fixed to the side of the vehicle body: the auxiliary positioning plate (4) is in the unfolded state, and the axes of the second mounting hole (41), the rotating shaft (3) and the first mounting hole (13) are in the same plane; The base plate (11) and the ear plate (12) are arranged in an L-shape. The width of the base plate (11) is greater than the width of the ear plate (12), so that one side of the base plate (11) extends out of the corresponding side of the ear plate (12). The pivot (3) is located at the bottom edge of the base plate (11) and on the outside of the ear plate (12); The base plate (11) and the auxiliary positioning plate (4) are both rectangular blocks, and the pivot (3) is provided at one of their overlapping corners. The auxiliary positioning plate (4) is provided with a flange (42), which is arranged in an L-shape with the auxiliary positioning plate (4). The width of the flange (42) is greater than that of the auxiliary positioning plate (4), so that one end of the flange (42) protrudes from the corresponding side of the auxiliary positioning plate (4). When the door limiter mounting bracket is fixed to the side of the vehicle body, the protruding end of the flange (42) can fit against the bottom surface of the end of the limiting arm (2).

2. The door limiter mounting bracket according to claim 1, characterized in that, The axes of the second mounting hole (41) and the first mounting hole (13) are at the same distance from the axis of the rotating shaft (3).

3. The door limiter mounting bracket according to claim 1, characterized in that, The limiting arm (2) is provided on the side of the ear plate (12) away from the base plate (11).

4. A method of using a door limiter mounting bracket as described in any one of claims 1-3, characterized in that, Includes the following steps: Step 1: Hinge the end of the limiting arm (2) with the limiting box (5) to the hinge hole (14) of the ear plate (12). Step 2: Rotate the auxiliary positioning plate (4) to overlap with the base plate (11) and put it in a folded state; Step 3: Place the limiting box (5), the limiting arm (2) and the door limiter mounting bracket into the inside of the door sheet metal as a whole, and pass the door limiter mounting bracket out through the through hole of the door. Step 4: Rotate the auxiliary positioning plate (4) to the unfolded state; Step 5: Fix the base plate (11) and auxiliary positioning plate (4) to the side panel of the vehicle body by screwing in bolts into the first mounting hole (13) and the second mounting hole (41).

5. The method of use according to claim 4, characterized in that, Step five includes: Step a1: Pass the first bolt through the first mounting hole (13) and initially tighten it onto the side panel of the vehicle body; Step a2: Pass the second bolt through the second mounting hole (41) and initially tighten it onto the side panel of the vehicle body; Step a3: Tighten the first bolt and the second bolt in sequence; Step a4: Tighten the first bolt and the second bolt in sequence.

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