TWI385085B - Vehicle parking device - Google Patents

Description

Vehicle parking device

The present invention relates to a parking device, and more particularly to a parking device for a vehicle.

Referring to FIG. 1 , a conventional parking device 2 is mounted on an all terrain vehicle 1 . The all terrain vehicle 1 includes a handle 11 and an axle 12 driven by an engine (not shown). The parking device 2 includes A triggering member 21 disposed on the handle 11 and a parking unit 22 for clamping the axle 32.

The parking unit 22 includes a brake caliper 221 disposed adjacent to the wheel end of the rear rocker arm (not shown), and a connecting cable 222 respectively connected to the brake caliper 221 and the trigger member 21 at both ends. When the triggering member 21 is in an open position, the axle 12 is in a rotatable state; and when the triggering member 21 is pulled in the direction indicated by the arrow 100, the linkage cable 222 is driven to pull the brake shoe of the brake caliper 221 223 is braked in the direction indicated by arrow 101 to brake the axle 12 so that the axle 12 cannot rotate to achieve the parking effect.

However, since the rotation speed of the axle 12 is low and the torque is large, the required braking torque is also large, and the braking effect on the axle 12 is poor; further, the existing brake tongs 221 are installed in a single type. The axle 12 is designed with its own maximum load, and for additional additional loads, or when the vehicle itself is too heavy, the parking requirement cannot be achieved. Moreover, the current German regulations stipulate that the parking test must be able to park on the slope of 25% (about 15 degrees) with the maximum technical load + trailer weight (1.4 times the maximum technical load) in order to meet the regulatory standards. Therefore, simply placing a single caliper 221 on the axle 12 not only has a poor parking effect, but also fails to meet regulatory standards.

Accordingly, it is an object of the present invention to provide a parking device for a vehicle that provides better braking power.

Therefore, the parking device of the vehicle of the present invention is applicable to a vehicle, the vehicle includes an engine, and a transmission device driven by the engine, the parking device includes: a trigger member disposed on the vehicle, the trigger member Pulling between an open position and a parking position; a first parking line driven by the triggering member; a dispensing unit coupled to the first parking line; and a second parking line connected to the distribution a unit, driven by the first parking line; and two calipers, respectively driven by the second parking line, when the trigger member is in the open position, the two calipers are not braking the transmission, and the The transmission can be rotated, and when the trigger is in the park position, the two calipers brake the transmission so that the transmission cannot rotate.

The utility model has the advantages that the two calipers are used at the same time, not only can the braking force be improved, but the calipers are all provided with the function of braking and parking, and the braking device is directly braked during braking and parking, and can provide better. Braking effect.

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments.

Referring to Figures 2 and 3, a preferred embodiment of the parking device 4 of the present invention is mounted on an all terrain vehicle 3 including a handle 31 and two brake levers 32 disposed on opposite sides of the handle 31. (only one side is shown), an engine 33, and a transmission 34 driven by the engine 33. The transmission 34 includes a front drive train 341 and a rear drive train 342 having a a front drive shaft 343 driven by the engine 33, and a front transmission case 344 driven by the front drive shaft 343. The rear rotation set 342 includes a rear drive shaft 345 driven by the engine 33, and a rear drive shaft 345 is driven by the rear drive shaft 345. The rear gearbox 346 and a brake disc 347 that rotates in synchronization with the rear drive shaft 345. Of course, the parking device 4 can also be mounted on a small vehicle such as a utility vehicle, not limited thereto.

Referring to FIGS. 3 and 4, the parking device 4 includes a triggering member 41 disposed on the handle 31, a first parking line 42 driven by the triggering member 41, and a first parking line 42 disposed on the first parking line 42. The adjusting screw 43 , the distributing unit 44 connected to the first parking line 42 , the second parking line 45 respectively connected to the distributing unit 44 and driven by the first parking line 42 , and the second parking line 45 are respectively disposed behind A caliper 46 on the gearbox 346 and driven by the second parking line 45.

As shown in FIG. 2, in the embodiment, the caliper 46 is disposed on the rear transmission case 346 and used to brake the rear transmission shaft 345. Alternatively, it may be disposed on the front transmission case 344 for braking. The front drive shaft 343 can be easily replaced by those having ordinary knowledge in the art, and will not be described herein.

Referring to FIG. 4, the dispensing unit 44 includes a dispenser 441, an upper cover 442 disposed at one end of the dispenser 441, and a slider 443 disposed in the dispenser 441. The first parking line 42 is passed through. The upper cover 442 extends into the dispenser 441. The first parking line 42 and the second parking line 45 extend into the dispenser 441 and are disposed on the slider 443.

Referring to FIGS. 5 and 6, each caliper 46 includes a body 461, a guide 462 disposed on the body 461 and extending through the corresponding second parking line 45, and a pivoting member 461 and corresponding to the body 461. a rocker arm 463 driven by the second parking line 45, a linkage rod 464 that is disposed on the body 461 and driven by the rocker arm 463, a first disk body 465 fixed in the body 461, and a body a second disc body 466 fixed in the interlocking rod 464, a plurality of pushing members 467 sandwiched between the first and second disc bodies 465, 466, and a driven by the second disc body 466 The hydraulic cylinder 468, the brake shoe 469 driven by the hydraulic cylinder 468, and the elastic member 460 disposed between the rocker arm 463 and the guide 462 and extending through the corresponding second parking line 45.

Referring to Figures 5 and 7, a plane P passing through the center point of the rear drive shaft 345 is defined, and the plane P is located between the two calipers 46. Each of the second parking lines 45 extends through the corresponding elastic member 460. After the guide 462 is connected to the rocker arm 463 of each caliper 46, the direction of the exit of each of the second parking lines 45 from the corresponding guide 462 is toward the plane P.

Referring to Figures 8 and 9, each of the first disk bodies 465 has a plurality of recesses 470, each of which has a depth from shallow to deep and defines a shallow end 471, and a shallow end The deep end of 471 is 472. Each of the second disc bodies 466 has a plurality of positioning slots 473 for the pusher members 467, and the pusher members 467 are positioned in the positioning slots 473 and can be disposed in each of the first disc bodies 465. The corresponding recessed portion 470 moves.

Referring to Figures 3, 6, and 8, the trigger member 41 is movable between an open position and a parking position. When the trigger member 41 is in the open position as shown in Figure 3, the trigger member 41 is not The first parking line 42 is pulled, and the rocker arm 463 of each caliper 46 is not pulled. At this time, the pushing member 467 is located at the deep end 472 of the corresponding first disk body 465, and the two-way vehicle piece 469 is not clamped. The brake disc 347 is made such that the rear drive shaft 345 can be rotated.

When the triggering member 41 is pulled to the parking position in the direction of the arrow 9 in FIG. 3, the triggering member 41 drives the first and second parking lines 42, 45 and drives the rocker arm 463 to rotate. The rocker arm 463 drives the corresponding linkage rod 464 and synchronously drives the second disk body 466 to rotate. At this time, the pushing member 467 moves synchronously with the second disk body 466, and is driven by the first disk body 465. The deep end 472 of the recess 470 is moved to the shallow end 471. Since the first disc 465 is fixed, the pusher 467 moves the same, and the second disc 466 is as shown in FIG. Pushing in the direction of the corresponding hydraulic cylinder 468, and driving the brake shoe 469 to clamp the brake disc 347, and braking the rear transmission shaft 345 to prevent the rear transmission shaft 345 from rotating, and the elastic member 460 ( See Figure 7) Compress and accumulate an elastic restoring force.

When the triggering member 41 is pulled back to the open position by the parking position in the opposite direction of the arrow 9 in FIG. 3, the first and second parking lines 42, 45 no longer pull the rocker arm 463, and The elastic restoring force of the elastic member 460 pushes the rocker arm 463 back, thereby driving the second disk body 466 to rotate, and the pushing member 467 is returned to the deep by the shallow end 471 of the recessed portion 470. The end 472, in conjunction with the pushback force of the hydraulic cylinder 468, pushes the second disc 466 toward the first disc 465 to move the brake disc 469 away from the brake disc 347. The brake disc 347 is not clamped, and the rear drive shaft 345 is returned to the rotatable state.

Referring to FIG. 3, the setting of the adjusting screw 43 can be used to adjust the tightness of the first parking line 42 to pull the second parking line 45, so as to control the brake disc 347 by the brake disc when parking. 469 clamping tightness.

It should be particularly noted that, in this embodiment, the brake shoe 469 can be driven by the corresponding brake lever 32 and the trigger member 41. When the vehicle is braked, the brake lever 32 is pulled and driven by oil pressure. The corresponding brake shoe 469 is configured to drive the first parking wire 42 and the second parking wire 45 through the triggering member 41 to mechanically drive the brake shoe 469 corresponding to the caliper 46.

With the above design, the parking device 4 of the vehicle of the present invention has the following advantages when actually used:

(1) Preferred braking capability: In the present case, the brake disc 347 is directly clamped by the two calipers 46, and the rear transmission shaft 345 is braked. Since the torque of the rear transmission shaft 345 is small, the inertia is small. Therefore, the two calipers 46 can not only provide a larger clamping force to the brake disc 347, but also directly brake the rear drive shaft 345 to obtain better braking capability.

(2) Cost and space: Since each second parking line 45 is extended to the corresponding elastic member 460 and the guide 462, it is connected to the rocker arm 463 of each caliper 46, and each second parking line The exit direction of the corresponding guide 462 is toward the plane P passing through the center point of the rear drive shaft 345, so that the length of the second parking line 45 can be made shorter and the trend is smooth, which not only saves each caliper 46. The occupied space and manufacturing cost also make the caliper 46 smoother when braking.

(3) Each caliper 46 has the dual functions of braking and parking: in this embodiment, each caliper 46 has both hydraulic and mechanical driving modes, so the two calipers provided in this embodiment 46, not only improve the braking ability of the parking, but also make each caliper 46 can carry out the hydraulic brake of the brake, or the mechanical brake of the parking, and has the dual function of braking and parking.

In summary, the parking device 4 of the vehicle of the present invention, through the use of the two calipers 46, can directly brake the rear drive shaft 345 of the vehicle, in addition to providing a large clamping force. The preferred braking capability, while the design of the guide 462 of the caliper 46, also enables the braking operation of the parking device 4 to be smooth and cost-effective, so that the object of the present invention can be achieved.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.

3‧‧‧All Terrain Vehicles

31‧‧‧Hands

32‧‧‧煞车杆

33‧‧‧ Engine

34‧‧‧Transmission

341‧‧‧ Front drive set

342‧‧‧ Rear drive set

343‧‧‧ front drive shaft

344‧‧‧Front gearbox

345‧‧‧ rear drive shaft

346‧‧‧ rear gearbox

347‧‧‧煞盘盘

4‧‧‧Parking device

41‧‧‧ Pulling parts

42‧‧‧First parking line

43‧‧‧Adjustment screws

44‧‧‧Distribution unit

441‧‧‧Distributor

442‧‧‧上盖

443‧‧‧ Slider

45‧‧‧Second parking line

46‧‧‧ calipers

460‧‧‧Flexible parts

461‧‧‧ Ontology

462‧‧ ‧ guide

463‧‧‧ rocker arm

464‧‧‧ linkage rod

465‧‧‧First disk

466‧‧‧second disk

467‧‧‧ pusher

468‧‧‧Hydraulic cylinder

469‧‧‧煞车片

470‧‧‧Depression

471‧‧‧ shallow end

472‧‧‧Deep end

473‧‧‧ positioning slot

9‧‧‧ arrow

Figure 1 is a schematic view showing a conventional parking device;

Figure 2 is a plan view showing a preferred embodiment of the parking device of the vehicle of the present invention, the parking device is disposed on the rear drive shaft;

Figure 3 is a schematic view showing the connection relationship of the components in the preferred embodiment;

Figure 4 is a partial cross-sectional view showing the connection relationship between the first and second parking lines and the dispensing unit in the preferred embodiment;

Figure 5 is a perspective view showing the relative position of the caliper in the preferred embodiment;

Figure 6 is a partial cross-sectional view, taken along the line IV-IV of Figure 5, illustrating the internal structure of the caliper, and the brake shoe is in the position of the un-braking rear drive shaft;

Figure 7 is a side elevational view showing the direction in which the second parking line is guided by the guide;

Figure 8 is a partial side elevational view showing the aspect of the recessed portion of the first disk body in the preferred embodiment;

Figure 9 is a partial side elevational view showing the orientation of the positioning groove of the second disk body in the preferred embodiment;

Figure 10 is a partial cross-sectional view showing the position of the drive shaft after braking in the preferred embodiment.

31. . . handle

32. . . Brake rod

345. . . Rear drive shaft

346. . . Rear gearbox

347. . . Brake disc

4. . . Parking device

41. . . Trigger

42. . . First parking line

43. . . Adjustment screw

44. . . Distribution unit

45. . . Second parking line

46. . . Caliper

469. . . Brake

9. . . arrow

Claims (10)

A parking device for a vehicle, which is suitable for a vehicle, the vehicle including an engine, and a transmission having a rear transmission set having a rear drive shaft driven by the engine, and a rear drive shaft The driven rear gearbox comprises: a triggering member disposed on the vehicle, the triggering member being movable between an open position and a parking position; a first parking line, the triggering member a distribution unit connected to the first parking line; two second parking lines respectively connected to the distribution unit and driven by the first parking line; and two calipers disposed on the rear transmission box And being respectively driven by the second parking line, when the triggering member is in the closed position, the two calipers are not braking the transmission device, so that the transmission device can be rotated, when the triggering member is located at the parking position The two calipers brake the transmission so that the transmission cannot rotate. The parking device of the vehicle of claim 1, wherein each caliper comprises a body, a rocker arm pivoted on the body and driven by a corresponding second parking line, and is disposed on the body a linkage rod driven by the rocker arm, a first disc body fixed in the body, a second disc body disposed in the body and fixed on the linkage rod, and a plurality of clips placed on the first disc a pushing member between the two disc bodies, a hydraulic cylinder driven by the second disc body, and two brake discs driven by the hydraulic cylinder. a parking device for a vehicle according to item 2 of the patent application scope, wherein Each caliper further includes a guide disposed on the body and extending through the corresponding second parking line. A parking device for a vehicle according to claim 1, wherein the transmission comprises a front drive train. A parking device for a vehicle according to claim 1, wherein a plane passing through a center point of the rear transmission shaft is defined, and the plane is located between the two calipers, and each second parking line is provided by a corresponding guide The direction of the exit is toward the plane. The parking device for a vehicle according to claim 2, wherein each caliper further comprises an elastic member disposed between the rocker arm and the guide and extending through the corresponding second parking line. The parking device for a vehicle according to claim 2, wherein the first disc body of each caliper has a plurality of recesses, the depth of each recess is gradually increased from shallow to deep, and defines a shallow end And a second end of each caliper having a plurality of positioning slots for the pusher members, the pusher members being positioned in the positioning slots of the second disc body, And can move in the corresponding recess of the first disc body. The parking device for a vehicle according to claim 1, wherein the vehicle further includes a handle, and the trigger member is disposed on the handle. The parking device for a vehicle according to claim 1, wherein the dispensing unit comprises a dispenser, and a slider disposed in the dispenser, the first parking line and the second parking line are Extending into the dispenser and placing on the slider. a parking device for a vehicle according to claim 9 of the patent application scope, wherein The dispensing unit further includes an upper cover that is disposed at one end of the dispenser, and the first parking line extends through the upper cover and extends into the dispenser.