Damping steering wheel
By using an L-shaped frame design and interference fit of the mass strip, the problem of high requirements for the shape and space of the mass strip in the existing technology is solved, achieving the effect of reducing costs and meeting the moment of inertia, and improving the problem of steering wheel vibration.
Patent Information
- Application Number
- CN202520136609.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-01-20
AI Technical Summary
In existing steering wheel frame designs, the shape and space requirements of the mass strip are relatively high, which increases costs and makes it difficult to meet the rotational inertia requirements. In particular, the U-shaped wheel rim cross-section design makes it difficult to improve the problem of steering wheel vibration.
The L-shaped frame design places the mass bar on the steering wheel frame rim. The angle between the first extension arm and the second extension arm is greater than or equal to 90°. The mass bar is fitted between the two arms and is interference-fitted with it by a boss, which reduces the requirements for the shape and space of the mass bar and increases the moment of inertia.
The shape and space requirements of the mass strip were reduced, reprocessing costs were decreased, customer requirements for rotational inertia were met, and the problem of hand vibration in the steering wheel was improved.
Smart Images
Figure CN223720990U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the steering wheel technical field, specifically relates to a shock absorbing steering wheel. BACKGROUND
[0002] At present, in the passenger car market, in order to prevent the steering wheel from shaking during driving, many main machine factories increase the quality bar in the early design of the steering wheel skeleton, but the steering wheel skeleton designed at present is mostly U-shaped wheel section, so the corresponding embedded quality bar also needs to be made into the shape, such as trapezoidal, to meet the installation requirements of the U-shaped wheel section, so that the shape of the quality bar has a greater requirement.
[0003] Therefore, a new technical scheme is needed. CONTENT OF THE UTILITY MODEL
[0004] Therefore, the present application provides a shock absorbing steering wheel.
[0005] The present application provides the following technical scheme:
[0006] According to the shock absorbing steering wheel provided by the present application, the quality bar is arranged on the side of the steering wheel skeleton away from the passenger and extends along at least part of the steering wheel skeleton, the steering wheel skeleton includes a first extension arm extending radially outward along the plane of the steering wheel skeleton and a second extension arm connected with the spoke of the steering wheel skeleton, the included angle between the first extension arm and the second extension arm is greater than or equal to 90°, and the quality bar is arranged between the first extension arm and the second extension arm.
[0007] Preferably, the two ends of the quality bar on the first extension arm are respectively provided with bosses, and the two ends of the quality bar are respectively in interference abutment with the bosses.
[0008] Preferably, the side of the boss close to the quality bar is formed with a guide slope and a supporting surface, the arc length of the quality bar is greater than the minimum arc distance between the supporting surfaces of the two bosses and less than the maximum arc distance between the guide slopes.
[0009] Preferably, the side of the boss away from the quality bar is formed with a diagonal supporting surface, the supporting surface extends in a direction perpendicular to the first extension arm, and the width of the boss gradually decreases away from the first extension arm.
[0010] Preferably, the quality bar has four sections arranged on the upper side, the lower side, the left side and the right side of the steering wheel skeleton.
[0011] Preferably, the side of the first extension arm close to the passenger is provided with an arc-shaped convex rib.
[0012] Preferably, the fixing position of the mass bar is located at the head, tail and middle part of the mass bar.
[0013] Preferably, the mass bar is pasted or bound on the handle.
[0014] Preferably, the cross section of the mass bar comprises a circle or an ellipse.
[0015] Preferably, the spoke comprises a spoke plate and spokes arranged on both sides of the spoke plate, and the two spokes are connected to the second extension arm respectively.
[0016] Compared with the prior art, the above at least one technical solution adopted by the present application can achieve the beneficial effects at least including:
[0017] In the present application, the handle is provided with the first extension arm and the second extension arm with an included angle greater than or equal to 90°, so that the mass bar can be located in or beyond the first extension arm and the second extension arm when installed, which reduces the shape requirement of the mass bar and the space requirement of the steering wheel skeleton, reduces reprocessing, reduces cost, and in addition, when the mass bar is increased to improve the moment of inertia, it can not be limited by the space of the steering wheel skeleton, so as to improve the steering wheel hand shock and reduce the shock of the steering wheel. BRIEF DESCRIPTION OF DRAWINGS
[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0019] Figure 1 is a back view schematic diagram of the shock-absorbing steering wheel in the present application;
[0020] Figure 2 is a front view schematic diagram of the shock-absorbing steering wheel in the present application;
[0021] Figure 3 is a schematic diagram of the protruding boss and the mass bar abutting in the present application;
[0022] Figure 4 is a first structure schematic diagram of the boss in the present application;
[0023] Figure 5 is a second structure schematic diagram of the boss in the present application;
[0024] Figure 6 is a cross-sectional schematic diagram of the L-shaped skeleton and the mass bar cooperation in the present application.
[0025] Fig. 1 is a steering wheel skeleton; 2 is a mass bar; 3 is a spoke; 4 is a spoke; 5 is a boss; 51 is a guide slope; 52 is a supporting surface; 53 is a slant supporting surface; 6 is a handle; 61 is a first extension arm; 62 is a second extension arm; 7 is an arc-shaped convex rib. DETAILED DESCRIPTION
[0026] The embodiments of the present application will be described in detail below with reference to the drawings.
[0027] The above and other aspects of the present application will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings in which:
[0028] It is to be understood that the foregoing description is that of certain examples of the application and that numerous changes in the details of construction and the combination and arrangement of parts can be made by those skilled in the art without departing from the scope of the application.
[0029] It is also to be understood that the following description is only illustrative of the aspects of the application and that changes can be made in the details and arrangement of parts by those skilled in the art without departing from the scope of the application as set forth in the appended claims.
[0030] Furthermore, in the following description, numerous specific details are set forth in order to provide a thorough understanding of the examples. However, it will be recognized by those skilled in the art that embodiments of the application can be practiced without these specific details.
[0031] Therefore, the applicant finds that most of the currently designed steering wheel skeletons are U-shaped, so the corresponding embedded mass bars also need to be made into the same shape, trapezoidal shape, and there are not small requirements for the shape of the mass bar and the space of the skeleton. In order to improve the steering wheel hand vibration problem, the customer requires that the steering wheel moment of inertia meet 42.2g / m2. In order to meet the requirements, the mass bar needs to be added to the skeleton of the steering wheel, but due to the limitation of the customer's A surface (the front surface of the steering wheel), the U-shaped structure is used in most of the market. The steering wheel moment of inertia cannot meet the customer's requirements.
[0032] Based on this, the technical solutions provided by the embodiments of the present application are described below in combination with the drawings.
[0033] The embodiments of the present application provide a damping steering wheel, as shown in Figure 1 , Figure 2 and Figure 6 , which comprises a steering wheel skeleton 1 and a mass bar 2, the mass bar 2 is arranged on the rim 6 of the steering wheel skeleton 1 away from the passenger and extends along at least part of the rim 6, the rim 6 comprises a first extension arm 61 extending radially outward along the plane of the rim 6 and a second extension arm 62 connected to the spoke of the steering wheel skeleton 1, the included angle between the first extension arm 61 and the second extension arm 62 is greater than or equal to 90°, and the mass bar 2 is arranged between the first extension arm 61 and the second extension arm 62. For example, the cross section of the rim of the steering wheel skeleton 1 is L-shaped to form an L-shaped skeleton, and the mass bar 2 can be fixed on the L-shaped skeleton by adhesive tape, which reduces the requirement for the shape of the mass bar 2, reduces the reprocessing of the mass bar 2, and the skeleton single side does not need space to fix the mass bar 2, which not only saves the cost of reprocessing, but also requires less space for skeleton design, which is convenient for development. In addition, the use of L-shaped skeleton to cooperate with the mass bar 2 can meet the requirement of moment of inertia, thereby meeting the requirements of the customer.
[0034] In an embodiment, as shown in Figure 1 and Figure 3 , the two ends of the mass bar 2 on the first extension arm 61 are respectively provided with bosses 5, and the two ends of the mass bar 2 respectively abut on the bosses 5 with interference.
[0035] In an embodiment, as shown in Figure 4 and Figure 5 , the side of the boss 5 close to the mass bar 2 is formed with a guide slope 51 and a supporting surface 52, the arc length of the mass bar 2 is greater than the minimum arc distance between the supporting surfaces 52 of the two bosses 5 and less than the maximum arc distance between the guide slopes 51.
[0036] In an embodiment, as shown in Figure 4 and Figure 5As shown, the side of the boss 5 away from the mass bar 2 is formed with a slant support surface 53, and the support surface 52 extends in a direction perpendicular to the first extension arm 61, and the width of the boss 5 gradually decreases away from the first extension arm 61.
[0037] In an embodiment, as shown in Figure 1 The mass bar 2 has four sections, respectively arranged on the upper side, lower side, left side and right side of the handle 6.
[0038] In an embodiment, as shown in Figure 6 The side of the first extension arm 61 close to the passenger is provided with an arc-shaped reinforcing rib 7 to enhance the overall strength of the steering wheel framework 1.
[0039] In an embodiment, the fixing position of the mass bar 2 is at the head, tail and middle part of the mass bar 2.
[0040] In an embodiment, the mass bar 2 is pasted or bound on the handle 6.
[0041] In an embodiment, as shown in Figure 6 The cross section of the mass bar 2 includes a circle or an ellipse.
[0042] In an embodiment, as shown in Figure 1 and Figure 2 The spoke includes a spoke plate 3 and a spoke bar 4 arranged on both sides of the spoke plate 3, and the two spoke bars 4 are respectively connected to the second extension arm 62.
[0043] In the design of the shock-absorbing steering wheel, first, according to the space limitation requirements of the customer and the DAB (Driver AirBag), the spoke plate 3 and the spoke bar 4 of the steering wheel framework 1 are designed and arranged, and then the handle 6 part is considered, and according to the customer's A surface (the front surface of the steering wheel) limitation requirements, the width and height of the handle 6 are confirmed, and the height and width of the handle 6 can be designed to be different sizes in different projects.
[0044] Then consider the mass bar 2 part, remove the mass bar 2 part in the shock-absorbing steering wheel, the moment of inertia reaches 27g / ㎡, through the conversion of mass and moment of inertia, the mass bar 2 needs to reach at least 520g, the axis of different projects is different, and the conversion result is also different. In order to reduce the volume of the mass bar 2, the mass bar 2 is generally made of steel material, and the density is 7.85g / cm 3 , so as to calculate the size of the mass bar 2. The mass bar 2 can be designed into a circle or an ellipse according to the actual situation. For example, a circular design is adopted. Due to the limitation of precision, it is not convenient to install a whole mass bar 2, and we can split the mass bar 2 into 3 or 4 sections for arrangement. Finally, the mass bar 2 is limited to rotate at the head and tail through the boss 5, as shown in Figure 3As shown, the boss 5 is in interference fit with the mass bar 2, and finally, the mass bar 2 is wrapped with adhesive tape at both ends and in the middle position to prevent falling off. At this point, the skeleton and the mass bar 2 are preliminarily designed.
[0045] Finally, CAE (Computer Aided Engineering) simulation analysis is performed, different strength analyses are performed according to different customer requirements, if part of the requirements are unqualified, the skeleton is designed according to the failure point, if the CAE analysis is qualified, the skeleton and the mass bar are designed.
[0046] In the specification, the same and similar parts between each embodiment are referred to each other, and each embodiment focuses on the difference from other embodiments. Especially, for the embodiments described later, the description is relatively simple, and the relevant part can be referred to the part of the foregoing embodiment.
[0047] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A vibration-damping steering wheel comprising a steering wheel skeleton and a mass bar, said mass bar being placed on the side of the steering wheel skeleton's rim which is remote from the occupant and extending at least along a part of said rim, characterized in that The spoke includes a first extension arm extending radially outward along a plane where the spoke is located and a second extension arm connected to the spoke of the steering wheel framework, an angle between the first extension arm and the second extension arm is greater than or equal to 90°, and the mass strip is arranged between the first extension arm and the second extension arm.
2. The shock-absorbing steering wheel according to claim 1, characterized in that Two ends of the mass strip on the first extension arm are respectively provided with bosses, and the two ends of the mass strip are respectively in interference abutment with the bosses.
3. The vibration damping steering wheel of claim 2, wherein A guiding slope and a supporting surface are formed on a side of the boss close to the mass strip, an arc length of the mass strip is greater than a minimum arc distance between the supporting surfaces of the two bosses and less than a maximum arc distance between the guiding slopes.
4. The vibration damping steering wheel of claim 3, wherein A slant supporting surface is formed on a side of the boss away from the mass strip, the supporting surface extends along a direction perpendicular to the first extension arm, and a width of the boss gradually decreases away from the first extension arm.
5. Dampened steering wheel according to any of claims 1-4, characterized in that The mass strip has four sections arranged on the upper side, the lower side, the left side and the right side of the spoke.
6. Dampened steering wheel according to any of claims 1-4, characterized in that An arc-shaped convex rib is arranged on a side of the first extension arm close to the passenger.
7. Dampened steering wheel according to any of claims 1-4, characterized in that The fixing position of the mass strip is located at the head, the tail and the middle part of the mass strip.
8. The shock-absorbing steering wheel according to any one of claims 1 to 4, characterized in that The mass strip is pasted or bound on the spoke.
9. The shock-absorbing steering wheel according to any one of claims 1 to 4, characterized in that A cross section of the mass strip includes a circle or an ellipse.
10. The shock-absorbing steering wheel according to any one of claims 1 to 4, characterized in that The spoke includes a spoke plate and spoke strips arranged on both sides of the spoke plate, and the two spoke strips are respectively connected to the second extension arm.