TWI749913B - Adjustable suspension device - Google Patents

Abstract

An adjustable suspension device comprises a frame unit, and a suspension unit disposed on said frame unit. Said frame unit includes a lower frame, and two upper frames spaced apart from each other and disposed above the wheels and said lower frame, which in turn, defines at least two suspension positions respectively. The suspension unit includes two suspension arms that are connected to the said lower frame and pivotally connected to said wheels respectively, and two shock-absorbing components disposed on said suspension arms respectively. Each shock-absorbing component has a second adjustment part that is detachably disposed on said suspension position. Said shock- absorbing components are configured to swing back and forth relative to said suspension arms, so as to change the suspension hard point between said shock-absorbing components and said frame unit in order to accommodate different needs.

Description

Adjustable suspension device

The invention relates to a suspension device, in particular to an adjustable suspension device.

In recent years, the demand for short-distance mobility in cities, such as delivery, old-fashioning, etc., has become higher and higher. Among them, micro-electric vehicles are loved by commuters from all over the world, and have gradually become a big business opportunity, making many car manufacturers begin to produce micro-four-wheels. Electric car. 1, it is a conventional suspension device 5, including a wheel 51, a trailing arm 52 connected to the wheel 51, a shock absorber 53 arranged on the trailing arm 52, and a trailing arm arranged on the trailing arm 52 and a spring 54 arranged spaced apart from the shock absorber 53.

However, in order to comply with environmental protection, electric vehicles must be made lighter to reduce energy consumption. However, most car manufacturers still use the suspension device 5 of gasoline vehicles as shown in Figure 1, which causes the wheels 51 to be skewed and the The structure of the trailing arm 52 is relatively complex, the shock absorber 53 and the spring 54 occupy a large space and are difficult to adjust, which are not conducive to the control of the micro-electric vehicle. In addition, users of micro-electric vehicles have different suspension requirements, such as high-load requirements such as freight home delivery and micro-transportation, or single-person exercise and commuting. Due to the low-load demand of shifts, car manufacturers must develop different suspension structures to meet different needs, leading to increased costs. Therefore, the above-mentioned shortcomings need to be improved.

Therefore, the purpose of the present invention is to provide an adjustable suspension device that can be adjusted for different needs.

Therefore, the adjustable suspension device of the present invention is suitable for being arranged on a mobile vehicle with two rear wheels, and includes a frame unit, a suspension unit arranged on the frame unit, and a suspension unit fixed on the frame unit. Anti-tilt unit of the frame unit. The frame unit includes a lower frame adapted to be arranged in front of the rear wheels, and two upper frames spaced apart from each other and adapted to be arranged above the rear wheels and the lower frame, each upper frame having a defined At least two suspension positions of the first adjustment part are provided. The suspension unit includes two suspension arms that are connected to the lower frame at intervals and are respectively suitable for connecting with the rear wheels, and two shock-absorbing components respectively connected to the suspension arms, each shock-absorbing component has a detachable The second adjustment part is arranged in any suspension position, wherein the shock-absorbing components can be adjusted to swing back and forth relative to the suspension arms. The anti-tilting unit is fixed on the suspension arms, and includes a fixing piece fixed to the frame unit, two adjusting pieces spaced apart from each other and connected to the fixing piece and extending forward and backward, and two detachable ground Connecting the adjusting parts and fixing the joint parts on the suspension arms.

The effect of the present invention is that the second adjusting parts can be detachably set in different suspension positions to change the suspension components relative to the frame unit. The angle of inclination between the two can generate different sizes of suspension hard points to correspond to different load requirements, thereby achieving a highly adaptable effect, and allowing the same mobile vehicle to be used in the depot for different suspension requirements. It is directly adjusted without the need for additional production of new suspension device assembly, which is not only simple to operate, but also reduces costs.

11: Rear wheel

2: Frame unit

21: Lower frame

22: Upper frame

220: Through slot

221: First Adjustment Department

23: Extension frame

3: Suspension unit

31: cantilever

311: first pole

312: second pole

32: Shock components

321: body

322: Second Adjustment Department

323: Spring

33: lock firmware

4: Anti-tilt unit

41: fixed parts

42: adjustment piece

420: positioning hole

43: Joint

L1: auxiliary line

L2: extension axis

θ: included angle

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: Figure 1 is an incomplete three-dimensional view illustrating a conventional suspension device; Figure 2 is an incomplete three-dimensional view , It is explained that an embodiment of the adjustable suspension device of the present invention is arranged on the two rear wheels; Fig. 3 is an incomplete rear view to illustrate one of the suspension units of this embodiment; Fig. 4 is an incomplete top view to illustrate The second suspension arm of the suspension unit; Figure 5 is an incomplete three-dimensional view illustrating an anti-tilt unit of this embodiment; Figure 6 is an incomplete three-dimensional view illustrating an adjustment member of the anti-tilt unit, and a 7 is a schematic diagram illustrating the change of the position of a second adjustment part of the suspension unit; and FIGS. 8 to 10 are incomplete side views, respectively illustrating a shock-absorbing component of the suspension unit Inclined situation.

Referring to Figures 2 to 4, an embodiment of the adjustable suspension device of the present invention is suitable for being set on a mobile carrier. The mobile vehicle is a miniature electric vehicle, but not limited to this. The mobile vehicle includes two rear wheels 11 spaced apart, in which the rear wheel 11 on the right side in FIG. 2 omits part of the structure in order to avoid shielding this embodiment. This embodiment includes a frame unit 2, a suspension unit 3 arranged on the frame unit 2, and an anti-tilting unit 4 arranged between the frame unit 2 and the suspension unit 3.

The frame unit 2 includes a lower frame 21 adapted to be arranged in front of the rear wheels 11, two upper frames 22 spaced apart from each other and adapted to be arranged above the rear wheels 11 and the lower frame 21, and a The upper frames 22 are connected and are suitable for extension frames 23 arranged behind the rear wheels 11. Each upper frame 22 has a first adjusting portion 221 that is generally flat and can define at least two suspension positions. In this embodiment, each first adjusting portion 221 forms a through slot 220 extending in the front-to-rear direction and passing through the suspension positions. In addition, in other embodiments, each first adjusting portion 221 may form a plurality of through holes located at the suspension positions and spaced apart, and the number of the through holes can be adjusted according to requirements.

The suspension unit 3 includes two suspension arms 31 connected to the lower frame 21 at intervals and adapted to be connected to the rear wheels 11, and two suspension arms 31 respectively arranged between the suspension arms 31 and the upper frames 22 The shock absorber components 32 and two are respectively arranged on the shock absorbers The lock firmware 33 on the component 32. Each suspension arm 31 has a curved first rod portion 311 connecting the lower frame 21 and the corresponding rear wheel 11, and a curved first rod portion 311 with both ends disposed on the first rod portion 311 for use The second rod portion 312 is used to improve the structural strength of the first rod portion 311. The first rod portions 311 and the second rod portions 312 are preferably hollow tubes, which can reduce weight. Each shock-absorbing component 32 has a columnar body part 321 connected to the first rod part 311 of the corresponding suspension arm 31, and a body part 321 extending from one end of the body part 321 and detachably arranged on any suspension The position of the second adjusting part 322 and a set of springs 323 arranged on the periphery of the body part 321. In this embodiment, the body portion 321 has the effect of reducing the vibration of the vehicle body, and the second adjustment portion 322 penetrates the corresponding first adjustment portion 221 and can be adjusted relative to the first adjustment portion 221 in the through groove 220部221 moves. Each lock piece 33 is disposed on the corresponding second adjusting part 322, and can move with the second adjusting part 322, and can be adjusted so that the corresponding second adjusting part 322 is fixed to the corresponding second adjusting part 322. The first adjustment part 221 is attached.

Please refer to Fig. 5 and Fig. 6 in conjunction with Fig. 4, wherein Fig. 5 is a partial enlarged view of Fig. 2. The anti-tilting unit 4 is fixed on the frame unit 2 and the suspension arms 31, and includes a long rod extending in the left-right direction and fixed to the extension frame 23. The fixing parts 41 and the two are opposite to each other The adjusting pieces 42 are spaced apart and fixed at both ends of the fixing piece 41 and located between the rear wheels 11, and two adjusting pieces 42 are respectively detachably connected to the adjusting pieces 42 and fixed to the suspension arms 31 The connecting member 43 (only one is shown in FIGS. 5 and 6 due to the angle of the drawing). Each adjusting member 42 extends from the fixing member 41 toward the lower frame 21, and A number of positioning holes 420 arranged at intervals are formed. Each engaging member 43 is fixed on the second rod portion 312 of the corresponding suspension arm 31, and detachably penetrates through one of the positioning holes 420 of the corresponding adjustment member 42, so that Each suspension arm 31 is positioned on the anti-tilt unit 4 to prevent the rear wheel 11 from being skewed by force during driving. In particular, it should be noted that each engaging member 43 is inserted through a different positioning hole 420, which will change the corresponding position between the suspension arm 31 and the adjusting member 42, thereby producing different positioning effects to meet different requirements. Demand.

It should be noted that, referring to FIGS. 7 and 8 in conjunction with FIG. 3, definition two respectively pass through the connection between the bodies 321 and the suspension arms 31, and are respectively perpendicular to the auxiliary lines L1 of the upper frames 22. Since one end of the body portion 321 of each shock-absorbing component 32 is positioned on the corresponding suspension arm 31, and the second adjustment portion 322 can move back and forth in the corresponding through slot 220, the mechanism The shock-absorbing components 32 can swing back and forth relative to the suspension arms 31, and are locked by the locking members 33 to be positioned on the upper frames 22. Referring to FIGS. 9 and 10 in conjunction with FIG. 8, each shock-absorbing component 32 can adjust the inclination angle with the auxiliary line L1 in response to different load requirements. In this embodiment, each body 321 extends an axis L2 An included angle θ formed between the corresponding auxiliary line L1 is 0 to 10 degrees, thereby generating different suspension hard points. For example, when each shock-absorbing component 32 is at the position shown in FIG. 9, the extension axis L2 tilts toward the direction of the lower frame 21, and the included angle θ is 10 degrees. At this time, the suspension hard point is higher. It can meet the demand of high load, so that this embodiment can be applied to transportation, freight home delivery or rescue, etc.; When each shock-absorbing component 32 is in the position shown in FIG. 10, the extension axis L2 tilts toward the extension frame 23, and the included angle θ is 10 degrees. At this time, the suspension rigidity is low and can be matched. Single-person driving with a lower load demand; when each suspension assembly 32 is located at the position shown in FIG. 8, the extension axis L2 is located on the auxiliary line L1, resulting in a moderate suspension hard point, so that it can be used in City connection, shared transportation, etc. Therefore, when this embodiment is assembled in a car factory, the relative position between each shock absorber component 32 and the frame unit 2 can be adjusted according to different load requirements and operating conditions, and then the corresponding position can be locked by the assembler. The locking member 33 completes the positioning. That is to say, with the mechanism that can adjust the suspension hard point in this embodiment, even for different usage conditions, the car manufacturer can still flexibly adjust the suspension unit 3 in the same mobile vehicle. To achieve highly adaptable effects, and the adjustment steps are relatively simple, and no additional production line is needed to manufacture suspension devices with different suspension hard points, which can save a lot of production costs.

In addition, it should be noted that, referring to FIGS. 3 and 4 again, the suspension arms 31 are arranged independently of each other, and have a simple structure and occupy less space in the vehicle body, so they can meet the requirements of a miniature electric vehicle. The design of each spring 323 sleeved on the body 321 not only reduces the space occupied by the body, but also oscillates with the body 321 together to offset the effect of weight load at different suspension hard points. In addition, referring again to Figures 5 and 6, since the anti-tilt unit 4 can be used to fix the relative positions of the suspension arms 31, it can prevent the rear wheels 11 from skewing during driving and can lift the The contact area of the rear wheels 11 when cornering, thereby increasing the grip and safety.

In summary, the adjustable suspension device of the present invention can be moved in the through slots 220 through the shock-absorbing components 32, thereby changing the mechanism of the suspension hard point, so that the same mobile vehicle can target different Adjust according to load demand to obtain better car body maneuverability. In addition, the suspension arms 31 have small vehicle space and light weight, and are suitable for light electric vehicles, and are restricted by the anti-tilt unit 4, which can prevent the rear wheels 11 from skewing during driving. And it can increase the area of contact with the ground to increase friction, and achieve the effect of safe driving, so it can indeed achieve the purpose of the invention.

However, the above are only examples of the present invention, and should not be used to limit the scope of implementation of the present invention, all simple equivalent changes and modifications made in accordance with the scope of the patent application of the present invention and the content of the patent specification still belong to This invention patent covers the scope.

11: Rear wheel

2: Frame unit

21: Lower frame

22: Upper frame

220: Through slot

221: First Adjustment Department

23: Extension frame

3: Suspension unit

31: cantilever

311: first pole

312: second pole

32: Shock components

321: body

323: Spring

33: lock firmware

4: Anti-tilt unit

41: fixed parts

42: adjustment piece

43: Joint

Claims (9)

An adjustable suspension device, suitable for being installed on a mobile vehicle with two rear wheels, and comprising: a frame unit including a lower frame suitable for being arranged in front of the rear wheels, and two spaced apart from each other And are respectively suitable for the upper frames arranged above the rear wheels and the lower frame, each upper frame has a first adjustment part defining at least two suspension positions; a suspension unit including two spaced connections to the lower frame The frame is respectively suitable for the suspension arms connected to the rear wheels, and two shock-absorbing components respectively connected to the suspension arms, each shock-absorbing component has a second detachable set in any suspension position The adjustment part, wherein the shock-absorbing components can be adjusted to swing back and forth relative to the suspension arms; and an anti-tilting unit is fixed on the frame unit and the suspension arms, and includes a fixed A fixing piece on the frame unit, two adjusting pieces spaced apart from each other and connected to the fixing piece and extending back and forth, and two joint pieces respectively detachably connected to the adjusting pieces and fixed on the suspension arms. The adjustable suspension device according to claim 1, wherein each adjusting member forms a plurality of positioning holes arranged at intervals, and each engaging member penetrates through one of the positioning holes of the corresponding adjusting member . The adjustable suspension device according to claim 1, wherein each suspension arm has a first rod portion provided on the lower frame and suitable for connecting the corresponding rear wheel and the second adjustment portion, and A second rod part having a curved shape and two ends arranged on the first rod part. The adjustable suspension device according to claim 3, wherein the first rods Both the second rods and the second rods are hollow tubes. The adjustable suspension device according to claim 3, wherein each coupling member is fixed on the second rod portion of the corresponding suspension arm. The adjustable suspension device according to claim 1, wherein the frame unit further includes an extension frame suitable for being arranged behind the rear wheels, and the fixing member extends along the left and right directions of the mobile vehicle to form one The long rod is fixed on the extension frame, and the two ends are respectively connected with the adjusting pieces, and each adjusting piece extends in the direction of the lower frame. The adjustable suspension device according to claim 1, wherein each upper frame is in the shape of a flat plate, and each shock-absorbing component further has a columnar shape extending from the second adjusting portion, and is connected to the corresponding suspension The body that can reduce the vibration of the boom is defined as two passing through the connection between the body and the suspension arms, and are respectively perpendicular to the auxiliary lines of the upper frame, and the extension axis of each body is corresponding to the The angle between the auxiliary lines is 0 to 10 degrees. The adjustable suspension device according to claim 7, wherein each shock-absorbing component further has a set of springs arranged on the periphery of the body. The adjustable suspension device according to claim 1, wherein each first adjustment portion forms a through slot extending back and forth and passing through the suspension positions, and the suspension unit further includes two The adjusting part is used for fixing the second adjusting parts to the locking members of the first adjusting parts after adjustment.

Images