TWM601704U - Handbrake stroke device with automatic compensation for break pad wear - Google Patents

Abstract

A device for automatically compensating a hand brake to make abrasion stroke includes a body unit, a first incoming unit, a second incoming unit, a compensation unit and a rotation positioning unit. The first and second order units are arranged between a brake disc and the body unit. The compensation unit includes a detent member, a screw member abutting against the detent member, and a screw member screwed on the screw member The screw assembly is subjected to an external force to provide the screw assembly to vibrate and make the screw assembly rotate relative to the screw assembly, and the screw assembly pushes the first to make the unit automatically compensate the brake disc In order to make the wear stroke, the rotation friction can be reduced through the rotation positioning unit, and the screw assembly can be prevented from reversing to ensure the automatic compensation effect.

Description

The hand brake is automatically compensated to make the wear stroke device

This new model relates to a vehicle brake device, in particular to a hand brake automatic compensation device to make abrasion stroke.

There is a caliper device that can be used as a hand brake (patent with TW certificate number M394267), which includes a body unit, a rocker unit pivoted on the body unit, a ring unit, a hand brake cable, and a hydraulic piston unit , And can be matched with a brake disc to achieve hand brake purpose. The main body unit has an operating space, the rocker arm unit has two rocker arms pivoted on both sides of the operating space, and each of the disc units has a switch between the rocker arms and the brake disc. The hand brake cable has an outer tube and a steel cable passing through the outer tube. One end of the outer tube abuts on the side of one of the rocker arms, and the steel cable has an embedded and positioned on the other rocker arm. The sleeve end and a pulled end that can be pulled by the hand brake lever.

The user can not only use the foot brake and drive the disc unit to brake the brake disc through the hydraulic piston unit, but also operate the hand brake lever and use the hand brake cable to drive the rocker arms , And push it to make the disc unit produce a braking action on the brake disc.

Another type of caliper device that can be used as a handbrake (patent with TW certificate number M415088) includes a body unit, a piston unit, a ring unit and a handbrake unit. The main body unit has a first side piece, a second side piece and an operating space, and the to make the sheet unit has a first and second positioning pieces connected with the piston unit and respectively arranged on the first and second positioning pieces The handbrake unit has a driving part and a first and second detents. The first and second detents are driven by a first and second driving parts of the driving part. Respectively, one approaching the original position of the first side member, pushing the first and the second to make the discs move towards a braking position of a brake disc, and achieve the purpose of handbrake.

After active research and development by the applicant, the new model was finally born.

Therefore, the object of the present invention is to provide a hand brake automatic compensation that can achieve the expected braking operation to make the wear stroke device.

Therefore, the new type of hand brake automatic compensation to make the wear stroke device is suitable for a brake disc. The brake disc has a first end surface and a second end surface opposite to the first end surface. The automatic compensation is used to make wear The stroke device includes a body unit, a first incoming unit, a second incoming unit, a compensation unit and a rotation positioning unit. The body unit includes a first side seat opposite to the first end surface, and a second side seat connected to the first side seat and opposite to the second end surface, the first side seat and the second side seat A accommodating space for accommodating the brake disc is defined together, the first side seat has a shaft hole extending along an axis, the shaft hole is connected to the accommodating space, and the first unit is disposed in Between the first end surface and the first side seat, the second incoming unit is disposed between the second end surface and the second side seat, the compensation unit is at least installed in the shaft hole, and includes a detent , A screw member abutting on the detent member, and a screw assembly screwed on the screw member, the detent member is subjected to an external force to provide the screw member to vibrate and make the screw assembly relative to the screw member Rotates, and the screw assembly pushes the first to make the unit toward the brake disc to automatically compensate for the wear stroke, the rotation positioning unit is arranged between the screw assembly and the first to make the unit, and includes a set at The first positioning recessed hole group of the screw assembly, a second positioning recessed hole group for positioning the unit relative to the first, and a set between the first positioning recessed hole group and the second positioning recessed hole group The bead nest, and a plurality of balls sleeved in the bead nest, the first positioning concave hole group has a plurality of first positioning concave holes arranged at equal intervals around the axis, and the second positioning concave hole group has a majority around the axis The bead nests are arranged at equal intervals and respectively correspond to the second positioning concave holes of the first positioning concave holes, the bead nest has a plurality of perforations arranged at equal intervals around the axis, and the balls are rotatably sleeved in the perforations , And the opposite sides are respectively sleeved in the first positioning concave holes and the second positioning concave holes.

The effect of the present invention lies in: using the setting of the compensation unit and the vibration force generated by operating the detent member, the screw assembly can be rotated relative to the screw member, and the first and second incoming units can be made to face the The brake disc is automatically compensated to make the wear stroke, the rotation friction of the screw assembly can be reduced through the rotation positioning unit, and the screw assembly can be prevented from reversing to ensure the automatic compensation effect.

1, 2 and 4, an embodiment of the new type of hand brake automatic compensation to make the wear stroke device 100, suitable for a brake disc 200, the brake disc 200 has a first end surface 210, and an opposite to The second end surface 220 of the first end surface 210, the automatic compensation for wear stroke device 100 includes a body unit 10, a first receiving unit 20, a second receiving unit 30, a linkage unit 40, and a compensation unit 50 and a rotating positioning unit 60.

The body unit 10 includes a first side seat 11 opposite to the first end surface 210, a second side seat 12 connected to the first side seat 11 and opposite to the second end surface 220, and two The guide rod 13 between the side seat 11 and the second side seat 12, the first side seat 11 and the second side seat 12 jointly define an accommodation space 14 for accommodating the brake disc 200, The first side seat 11 has a shaft hole 111 extending along an axis L, and the shaft hole 111 is connected to the accommodating space 14. In addition, the first side seat 11 and the second side seat 12 are each provided with two cylinder chambers 15, and each cylinder chamber 15 can be used to install one for driving the first incoming unit 20 and the second incoming unit. The piston part 30 (not shown in the figure), but because the technology of using the piston part to drive the first command unit 20 and the second command unit 30 is not the focus of the present invention, no further description is given.

The first incoming unit 20 is disposed between the first end surface 210 and the first side seat 11.

The second command unit 30 is disposed between the second end surface 220 and the second side seat 12.

The linkage unit 40 is slidably installed on the main body unit 10 along the axis L, and includes a fixing seat 41 arranged on the outside of the first side seat 11 opposite to the accommodating space 14, and a fixing seat 41 arranged on the second side The pushing seat 42 between the seat 12 and the second incoming unit 30, and a link 43 connected between the fixing seat 41 and the pushing seat 42. The fixing seat 41 has a main seat body 410, a side seat body 420 locked to one side of the main seat body 410, and a central hole arranged along the axis L and communicating the main seat body 410 and the side seat body 420 411. The central hole 411 is in the shape of a stepped hole and has a large diameter section 412, a front reduced diameter section 413 connected to one side of the large diameter section 412 along the axis L and disposed on the side seat body 420, and a A rear reduced diameter section 414 is connected to the other side of the large diameter section 412 along the axis L. A front shoulder surface 415 is provided at the junction of the large diameter section 412 and the front reduced diameter section 413. The large diameter section 412 and the rear A rear shoulder surface 416 is provided at the junction of the reduced diameter section 414, and the large diameter section 412 has a non-circular area 417 provided on the side seat 420. The linkage member 43 has two pairs of ears 431 slidably sleeved on the guide rods 13.

The compensation unit 50 is installed in the shaft hole 111 and the central hole 411, and includes a positioning member 51 fixed to the fixing seat 41 and abutting against the front shoulder surface 415, and a positioning member 51 that can surround the axis L relative to the positioning member 51 The detent part 52 that generates rotation, most of the rolling parts 53 between the positioning part 51 and the detent part 52, a screw part 54 abutting on the detent part 52, and a screw in the screw part 54 of the screw set 55, a return member 56 that springs between the screw member 54 and the fixing seat 41, a spring 57 that springs between the screw member 54 and the screw set 55, must be located at the first The push block 58 of the incoming unit 20 and a thrust bearing 59 arranged between the spring 57 and the screw member 54.

The positioning member 51 is mounted on the large-diameter section 412 and is non-rotatably fixed to the front shoulder surface 415. The positioning member 51 has a first side surface 511, and most of them are recessed on the first side surface 511 and are equidistant around the axis L The first grooves 512 are arranged at intervals, and the middle part of the first grooves 512 is deeper, and the depth is gradually reduced from the middle along the two sides around the axis L (see FIG. 10).

The detent member 52 has a detent plate 521 opposite to the positioning member 51 and disposed on the large diameter section 412, and a detent rod connected to the detent plate 521 and passing through the front reduced diameter section 413 522. The detent plate 521 has a second side surface 523 opposite to the first side surface 511, and a majority of second grooves 524 recessed on the second side surface 523 and arranged at equal intervals around the axis L. The middle part of the second groove 524 is deeper, and the depth is gradually reduced from the middle along the two sides of the axis L (refer to FIG. 10 ). The detent rod 522 can extend outside the fixing seat 41. The rolling elements 53 are respectively nested in the first grooves 512. When the detent element 52 rotates relative to the positioning element 51, the second grooves 524 can be nested or separated from the rolling elements 53 .

The screw member 54 has a catch disc 541 abutting on the catch disc 521 and a screw part 542 connected to the catch disc 541. The contour shape of the switch disc 541 corresponds to the non-circular area 417 of the large diameter section 412, and is also non-circular. The switch disc 541 is non-rotatable but can be displaced along the axis L and is sleeved on the non-circular area District 417.

The screw assembly 55 is slidably disposed between the central hole 411 and the shaft hole 111, and has a screw hole 551 screwed with the screw part 542.

The restoring member 56 adopts a compression spring and springs between the switch plate 541 and the rear shoulder surface 416, and its elastic force provides the switch plate 541 to constantly keep abutting against the switch plate 521, the switch plate 521 Constantly maintain the tendency of abutting toward the fixing member 51.

The spring 57 springs between the catch plate 541 and the screw assembly 55, and its elastic force provides the screw assembly 55 to keep the tendency of moving the unit 20 toward the first come.

The pushing block 58 is positioned against the first receiving unit 20 and provides a larger pushing area between the screw assembly 55 and the first receiving unit 20.

The thrust bearing 59 is disposed between the detent plate 541 and the spring 57 and provides the screw sleeve 55 to rotate smoothly relative to the screw member 54.

With reference to Figures 3 and 5, the rotation positioning unit 60 is disposed between the screw assembly 55 and the first incoming unit 20. This embodiment includes a first positioning recessed hole group 61, One is positioned relative to the first positioning unit 20 and is disposed in the second positioning concave hole group 62 of the push block 58, and one is disposed between the first positioning concave hole group 61 and the second positioning concave hole group 62 The bead nest 63 and most of the balls 64 nested in the bead nest 63. The first positioning concave hole group 61 has a plurality of first positioning concave holes 611 arranged at equal intervals around the axis L, and the second positioning concave hole group 62 has a plurality of first positioning concave holes 611 arranged at equal intervals around the axis L and respectively corresponding to the The second positioning concave hole 621 of the first positioning concave hole 611, the bead nest 63 has a plurality of perforations 631 arranged at equal intervals around the axis L, and the balls 64 are rotatably sleeved in the perforations 631 and are formed The opposite sides are respectively sleeved in the first positioning concave holes 611 and the second positioning concave holes 621. The number of the first positioning recesses 611 and the second positioning recesses 621 is greater than the number of the balls 63, and the number of the first positioning recesses 611 and the second positioning recesses 621 is the same The number of the balls 63 is twice that of the first positioning recess 611 and the number of the second positioning recesses 621 in this embodiment are 18, and the number of the balls 63 is 9.

In order to further understand the effects of the cooperation of the various elements of the present invention, the technical means used, and the expected effects, the following will be explained again. It is believed that a deeper and specific understanding of the present invention can be obtained from this.

As shown in Figures 1 and 4, when the automatic compensation is used to complete the overall assembly of the wear stroke device 100 and is installed and positioned relative to the brake disc 200, in the unused state (ie, the factory state), the first As a result, there is a gap between the incoming unit 20 and the first end surface 210 and the second incoming unit 30 and the second end surface 220 respectively.

As shown in FIG. 6, when the hand brake is used for the first time and the detent lever 522 is driven to rotate by an external force, and the second grooves 524 are depressed relative to the rolling elements 53, the rolling elements are used. The cooperation of the member 53 with the depth changes of the first grooves 512 and the second grooves 524 will cause the detent plate 521 to move away from the positioning member 51 along the axis L. At the same time, the detent The plate 541 is pushed by the detent plate 521, so that the screw member 54 and the screw set 55 are linked to the rotation positioning unit 60, and the first to make the unit 20 move relative to the first end surface 210 (by the detent plate 541 The displacement of squeezes the restoring member 56, and the restoring member 56 contains a releasing elastic force, and the spring 57 is also compressed to contain a releasing elastic force), originally existing in the first source unit 20 and the first end surface 210 , And the second to make the gap between the unit 30 and the second end surface 220 disappear, but between the first side seat 11 and the push block 58, the second side seat 12 and the push seat 42 will be different Create another gap.

As shown in Figure 7, when the detent lever 522 is no longer operated, the return elastic force of the return member 56 will push the detent plate 541 and the detent plate 521 to move toward the positioning member 51, and then use the Waiting for the effect of the change of the depth of the second groove 524 to cause the detent plate 521 to move toward the positioning member 51 while generating a vibration force. When the vibration force is transmitted to the screw member 54 through the spring 57, it is also due to the spring. 57 also releases the elastic force at the same time, as well as the existence of the thread backlash between the screw member 54 and the screw assembly 55, which causes the screw assembly 55 to rotate slightly relative to the screw member 54, and the screw assembly 55 is relatively The rotating action of the screw member 54 causes the entire length of the screw member 54 and the screw sleeve 55 along the axis L to be longer, and keeps the receiving plate 541 against the moving plate 521.

When the screw assembly 55 rotates relative to the screw member 54, the first positioning concave holes 611 of the screw assembly 55 rotate relative to the balls 64 (or the screw assembly 55 drives the balls 64 relative to The second positioning concave holes 621 rotate), the balls 64 can reduce the rotational friction of the screw assembly 55 and provide smooth rotation of the screw assembly 55, and the ball nests 64 can also be used to nest in the first A positioning concave hole 611 and the second positioning concave holes 621 can prevent the screw assembly 55 from being reversed after rotating, so as to ensure an automatic compensation effect.

And by using the number of the first positioning concave holes 611 and the second positioning concave holes 621 to be twice the number of the balls 63, the first positioning concave holes 611 of the screw set 55 can be made to be relative to the The angle at which the ball 64 rotates is smaller, so that the screw assembly 55 can achieve precise rotational positioning.

As shown in Figures 8 and 9, when the piston is used to operate the brake and the first to make the unit 20 and the second to make the unit 30 have a wear condition, and the operator operates the detent lever 522 to rotate again, use When the detent plate 521 rotates relative to the positioning member 51 and causes the second grooves 524 to rotate relative to the rolling members 53, the rolling members 53 and the first grooves 512, the The coordinated effect of the depth change of the second groove 524 will automatically compensate for the wear stroke according to the operating principle of FIG. 5 and FIG. 6.

Therefore, the present invention uses the positioning member 51 of the compensation unit 50, the cooperation of the locking member 52 and the rolling members 53 to generate vibration force when the hand brake is applied and the detent lever 522 is driven to rotate. The force can cause the screw assembly 55 to produce a slight rotation relative to the screw member 54 and automatically compensate for wear. It does not require adjustment and correction by the operator, which is very convenient to use.

In summary, the new type of hand brake automatic compensation for wear stroke device has a simple overall structure, easy to manufacture and assemble, and can automatically compensate for wear when the hand brake is applied, which can indeed achieve the purpose of new cost.

However, the above-mentioned are only examples of the present model. When the scope of implementation of the present model cannot be limited by this, all simple equivalent changes and modifications made in accordance with the patent scope of the present model application and the contents of the patent specification still belong to This new patent covers the scope.

100: Automatic compensation to make wear stroke device 10: Body unit 11: First side seat 111: Shaft hole 12: Second side seat 13: guide rod 14: Housing space L: axis 15: Cylinder chamber 20: The first order unit 30: The second order unit 40: Linkage unit 41: fixed seat 410: Main Block 420: side seat body 411: Center hole 412: Large Diameter Section 413: front reduced diameter section 414: Back reduction section 415: front shoulder 416: back shoulder 417: non-circular area 42: Push seat 43: Linkage 431: Ear 50: Compensation unit 51: positioning parts 511: first side 512: first groove 52: Controls 521: Swing Disc 522: Handle 523: second side 524: second groove 53: Rolling pieces 54: Screw parts 541: Confession 542: Screw part 55: Screw set 551: screw hole 56: Reply 57: Spring 58: push block 59: Thrust bearing 60: Rotating positioning unit 61: The first positioning concave hole group 611: first positioning concave hole 62: The second positioning concave hole group 621: second positioning concave hole 63: Bead Nest 631: perforation 64: ball 200: brake disc 210: first end face 220: second end face

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, among which: Figure 1 is a three-dimensional assembly diagram of an embodiment of the new type of hand brake automatic compensation to make wear stroke device; Figure 2 is a perspective exploded view of the embodiment; Figure 3 is a partial three-dimensional exploded schematic view of Figure 2; Figure 4 is a schematic cross-sectional view of the combination of the embodiment, showing the state of not braking; Figure 5 is a schematic partial cross-sectional view of Figure 4; Figure 6 is a schematic diagram of another braking state of this embodiment, showing a state that has not been worn out; Fig. 7 is a schematic diagram of an automatic compensation stroke of the embodiment; Figure 8 is a schematic diagram of another automatic compensation stroke of the embodiment; Figure 9 is a schematic diagram of another automatic compensation stroke of the embodiment; and Fig. 10 is a sectional view taken along the line X-X in Fig. 4;

100: Automatic compensation to make wear stroke device

10: Body unit

11: First side seat

111: Shaft hole

12: Second side seat

13: guide rod

14: Housing space

L: axis

15: Cylinder chamber

20: The first order unit

30: The second order unit

40: Linkage unit

41: fixed seat

410: Main Block

420: side seat body

411: Center hole

412: Large Diameter Section

413: front reduced diameter section

417: non-circular area

42: Push seat

43: Linkage

431: Ear

50: Compensation unit

51: positioning parts

52: Controls

521: Swing Disc

522: Handle

523: second side

524: second groove

53: Rolling pieces

54: Screw parts

541: Confession

542: Screw part

55: Screw set

56: Reply

57: Spring

58: push block

59: Thrust bearing

60: Rotating positioning unit

Claims (9)

A hand brake automatic compensation for wear stroke device is suitable for a brake disc. The brake disk has a first end surface and a second end surface opposite to the first end surface. The automatic compensation for wear stroke device includes: A body unit includes a first side seat opposite to the first end surface, and a second side seat connected to the first side seat and opposite to the second end surface, the first side seat and the second side The seats jointly define an accommodating space for accommodating the brake disc, the first side seat has a shaft hole extending along an axis, and the shaft hole is connected to the accommodating space; A first incoming unit arranged between the first end surface and the first side seat; A second incoming unit arranged between the second end surface and the second side seat; A compensation unit is installed at least in the shaft hole, and includes a detent, a screw member abutting on the detent, and a screw set screwed on the screw, the detent can be subjected to external force The screw element is provided to generate vibration, and the screw assembly is rotated relative to the screw element, and the screw assembly pushes the first to make the unit automatically compensate for the brake disc to make the wear stroke; and A rotary positioning unit is arranged between the screw assembly and the first locating unit, and includes a first positioning concave hole set provided in the screw assembly, and a second positioning unit relative to the first locating unit. Positioning concave hole group, a bead nest arranged between the first positioning concave hole group and the second positioning concave hole group, and a plurality of balls sleeved in the bead nest, the first positioning concave hole group has a plurality of surrounding The axis is arranged at equal intervals with first positioning recesses, the second positioning recess group has a plurality of second positioning recesses arranged at equal intervals around the axis and respectively corresponding to the first positioning recesses, the bead nest There are many perforations arranged at equal intervals around the axis, the balls are rotatably sleeved in the perforations, and opposite sides are sleeved in the first positioning recesses and the second positioning recesses respectively In the hole. The hand brake automatic compensation for wear stroke device according to claim 1, further includes a linkage unit slidably mounted on the main body unit along the axis, and the linkage unit includes a linkage unit disposed opposite to the accommodation space. A fixing seat outside the first side seat, a pushing seat arranged between the second side seat and the second incoming unit, and a linkage connected between the fixing seat and the pushing seat, the fixing seat There is a central hole arranged along the axis, the detent element and the screw element are installed in the central hole, the screw assembly is slidably arranged between the central hole and the shaft hole, and the screw assembly pushes the first When an incoming unit is used, the linkage unit also pushes the second incoming unit to automatically compensate for the brake disc to make the wear stroke. The hand brake automatic compensation for wear stroke device according to claim 2, wherein the compensation unit further includes a positioning member fixed to the fixing seat and arranged on one side of the detent member, and most of the positioning members are located therebetween The positioning member has a first side surface and a plurality of first grooves recessed on the first side surface and arranged at equal intervals around the axis. The locking member has an opposite On the second side surface of the first side surface, and most of the second grooves recessed on the second side surface and arranged at equal intervals around the axis, the rolling elements are respectively nested in the first grooves, and the receiving The detent end and the transmission end are arranged on the detent member, the detent member is operated to rotate relative to the positioning member, and the detent member can be moved back and forth along the axis through the rolling members and generate vibration force, the automatic compensation The abrasion stroke device further includes a restoring member elastically abutting between the screw member and the fixing seat, and the restoring member provides a tendency for the detent member to move toward the positioning member after moving along the axis. The device for automatically compensating the wear stroke of the hand brake according to claim 3, wherein the compensation unit further includes a spring that springs between the screw member and the screw assembly, and a spring that must be located in the first order unit Pushing block, the second positioning concave hole group is arranged on the pushing block. According to claim 4, the hand brake automatic compensation for wear stroke device, wherein the compensation unit further includes a thrust bearing arranged between the spring and the screw member. The hand brake automatic compensation for wear stroke device according to claim 5, wherein the screw member of the compensation unit has a catch plate abutting on the catch member, and a screw part connected to the catch disc , The thrust bearing is arranged between the detent plate and the spring. The hand brake automatic compensation for wear stroke device according to claim 6, wherein the fixing seat of the linkage unit has a main seat body and a side seat body locked to one side of the main seat body, and the central hole communicates with The main seat body and the side seat body, the large-diameter section of the center hole has a non-circular area provided on the side seat body, and the contour shape of the receiving plate corresponds to the non-circular area of the large-diameter section , And also in a non-circular shape, the detent plate is non-rotatable but can be sleeved in the non-circular area to be displaced along the axis. The hand brake automatic compensation for wear stroke device according to claim 1, wherein the number of the first positioning recesses of the rotary positioning unit is greater than the number of the balls, and the number of the second positioning recesses is greater than The number of these balls. The hand brake automatic compensation for the wear stroke device according to claim 8, wherein the number of the first positioning recesses of the rotating positioning unit is twice the number of the balls, and the number of the second positioning recesses The number is twice the number of these balls.

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