TWI705915B - The hand brake is automatically compensated to make the wear stroke device - Google Patents

Abstract

A device for automatically compensating a hand brake for wear stroke includes a body unit, a first command unit, a second command unit, and a compensation unit. The body unit includes a first side seat, a second side seat, the first to make the unit is arranged between a brake disc and the first side seat, the second to make the unit is arranged between the brake disc and Between the second side seats, the compensation unit includes a detent member, a screw member abutting on the detent member, and a screw assembly screwed on the screw member. The detent member can provide The screw element vibrates and causes the screw assembly to rotate relative to the screw assembly, and the screw assembly pushes the first to make the unit automatically compensate for the brake disc to make the wear stroke.

Description

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

The present invention relates to a brake device for a vehicle, in particular to a hand brake automatic compensation to make wear stroke device.

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 present invention was finally born.

Therefore, the purpose of the present invention is to provide a hand brake automatic compensation device to make the wear stroke device.

Therefore, the hand brake automatic compensation device of the present invention is suitable for a brake disc with a first end surface and a second end surface opposite to the first end surface. The automatic compensation is used to make the wear stroke The device includes a main unit, a first incoming unit, a second incoming unit and a compensation unit. The body unit includes a first side seat opposite to the first end surface, 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 are common An accommodating space for accommodating the brake disc is defined, the first side seat has a shaft hole extending along an axis, the shaft hole is connected to the accommodating space, and the first incoming unit is disposed in the Between the first end surface and the first side seat, the second command unit is arranged 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 rotate relative to the screw member , And the screw assembly pushes the first to make the unit automatically compensate towards the brake disc to make the wear stroke.

The effect of the present invention is: using the setting of the compensation unit, and using 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, and the structure is quite simplified.

Referring to Figures 1, 2 and 3, an embodiment of the hand brake automatic compensation device 100 of the present invention for abrasion stroke is suitable for a brake disc 200, the brake disc 200 has a first end surface 210, and an opposite 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.

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 central hole 411 arranged along the axis L, the central hole 411 is in the shape of a step hole, and has a large diameter section 412, and a forward retracting portion connected to the large diameter section 412 along the axis L Diameter section 413, and a rear reduced diameter section 414 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. A rear shoulder surface 416 is provided at the junction of the diameter section 412 and the rear reduced diameter section 414. 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 pushing block 58 of the incoming unit 20, a first bearing 591 arranged between the spring 57 and the screw member 54, and a second bearing 592 arranged between the screw sleeve 55 and the pushing block 58.

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. 6).

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. 6 ). The detent lever 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 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 receiving 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 adsorbed and positioned on the first receiving unit 20, and provides a larger pushing area between the screw set 55 and the first receiving unit 20.

The first bearing 591 is a thrust bearing and is arranged between the detent plate 541 and the spring 57, and the second bearing 592 is a thrust bearing. The first bearing 591 and the second bearing 592 provide that the screw sleeve 55 can rotate smoothly relative to the screw member 54.

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, and it is believed that a deeper and specific understanding of the present invention can be obtained from this.

As shown in FIGS. 1 and 3, when the automatic compensation is used to complete the assembly of the wear stroke device 100 and is installed and positioned relative to the brake disc 200, in the normal state of use, the first command unit 20 There is a gap between the first end surface 210 and the second incoming unit 230 and the second end surface 220 respectively, so the brake disc 200 can rotate freely without being braked.

As shown in FIG. 4, when the hand brake is used and the detent lever 522 is driven to rotate by an external force, the first to make the unit 20 rub against the first end surface 210, and the second to make the unit 30 relative to the second The end surface 220 is rubbed to achieve the purpose of braking. And Fig. 4 shows the state of not being worn out, originally the gap between the first end surface 210 and the first to make unit 20, the second end surface 220 and the second to make unit 30 is eliminated, but in the Another gap is generated between the first side seat 11 and the pushing block 58, and the second side seat 12 and the pushing seat 42.

As shown in Figures 5 and 6, when the brakes are applied to the first incoming unit 20 and the second incoming unit 30, and the operator operates the detent lever 522 to rotate, the detent plate 521 is used When rotating relative to the positioning member 51 and causing the second grooves 524 to generate detents relative to the rolling members 53, the rolling members 53 and the first grooves 512 and the second recesses are used. The coordinated effect of the change in the depth of the groove 524 will cause the detent plate 521 to move away from the positioning member 51 along the axis L, and after the distance is away, the elastic force of the return member 56 will be used to move the detent plate 521 toward the position. When the member 51 is pushed back, a vibration force will be generated during the return movement of the detent plate 521. When the vibration force is transmitted to the screw member 54 due to the existence of the thread backlash, when the screw member 54 vibrates, Will cause the screw assembly 55 to produce a slight rotation, and the rotation of the screw assembly 55 will push the push block 58, the first to make the unit 20 automatically compensate for the first end surface 210 of the brake disc 200 to make Wear stroke. At the same time, using the function of the linkage unit 40, the second command unit 30 also automatically compensates toward the second end surface 220 of the brake disc 200 to cause the wear stroke.

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 parking brake is applied and the detent lever 522 is driven to rotate. The force can cause the screw assembly 55 to generate a slight rotation relative to the screw member 54 and automatically compensate for wear relative to the first end surface 210 and the second end surface 220 of the brake disc 200, without the need for the operator to adjust or correct it. Quite convenient.

In summary, the hand brake automatic compensation for wear stroke device of the present invention has a simple overall structure, easy manufacturing and assembly, and can automatically compensate for wear when the hand brake is applied, which can indeed achieve the purpose of the invention.

However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited by this, 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 Within the scope of the patent for the present invention.

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 411: Center hole 412: Large Diameter Section 413: front reduced diameter section 414: Back reduction section 415: front shoulder 416: back shoulder 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 591: The first bearing 592: second bearing 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, in which: Figure 1 is a three-dimensional assembly diagram of an embodiment of the device for automatic compensation of the hand brake of the present invention to make abrasion stroke; Figure 2 is a perspective exploded view of the embodiment; Figure 3 is a schematic cross-sectional view of the combination of the embodiment, showing the state of not braking; Figure 4 is a schematic diagram of a braking state of this embodiment, showing a state that has not been worn out; Fig. 5 is a schematic diagram of an automatic compensation stroke of the embodiment; Figure 6 is a schematic diagram of another automatic compensation stroke of the embodiment; and Fig. 7 is a sectional view taken along the line VII-VII in Fig. 3;

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

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

20: The first order unit

30: The second order unit

40: Linkage unit

41: fixed seat

411: Center hole

412: Large Diameter Section

413: front reduced diameter section

42: Push seat

43: Linkage

431: Ear

541: Confession

542: Screw part

55: Screw set

56: Reply

57: Spring

58: push block

591: The first bearing

592: second bearing

Claims (5)

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 collectively 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 command unit, Is arranged between the first end surface and the first side seat; a second incoming unit is arranged between the second end surface and the second side seat; a compensation unit is installed at least on the shaft hole and includes A detent member, 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 relatively When the screw member rotates, and the screw set pushes the first to make the unit toward the brake disc to automatically compensate for the wear stroke; a linkage unit is slidably mounted on the body unit along the axis, and the linkage unit includes A fixing seat arranged on the outside of the first side seat opposite to the accommodating space, a pushing seat arranged between the second side seat and the second incoming unit, and a fixing seat connected to the fixing seat The connecting member between the pushing seats, the fixing seat has a central hole arranged along the axis, the detent member and the screw member are installed in the central hole, and the screw set is slidably arranged in Between the center hole and the shaft hole, when the screw assembly pushes the first incoming unit, 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 1, 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 to operate the The detent member rotates relative to the positioning member. Through the rolling members, the detent member can be moved back and forth along the axis and generate vibration force. The automatic compensation to make the wear stroke device also includes a spring against the screw member and The restoring member between the fixed seats 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 2, 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 Push the block. The device for automatically compensating the wear stroke of the hand brake according to claim 3, wherein the compensation unit further includes a first bearing arranged between the spring and the screw member, and a first bearing arranged between the screw sleeve and the pusher The second bearing between the blocks. The automatic compensation of the hand brake as described in claim 4 to make the wear stroke device, which Wherein, the screw member of the compensation unit has a receiving plate abutting against the moving member, and a screw portion connected to the receiving plate, the first bearing thrust bearing, and is arranged on the receiving plate and Between the springs, the second bearing is a thrust bearing.

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