JPS5993526A - Caliper body centering mechanism - Google Patents

Abstract

PURPOSE:To prevent temperature rise of pad due to sliding and abnormal abrasion of lining, by maintaining proper interval of pads and centering the caliper body under non-brake condition. CONSTITUTION:Upon braking, an inner pad 4 is pressed by a piston 6a to slide against a disc 8 and the reaction will cause to slide a caliper body 2 against a support 1 through a guide pin 7 while sliding an outer pad 3 against a disc 8 to produce braking force. Upon release of braking, the piston 6a is reset by resilient recovery force of seal member 6b while the inner pad 4 is returned by the resiliency of a belleville spring 13' to provide predetermined gap 8' against a separation board 11'. The outer pad 3 is pushed back to provide predetermined gap 8 against said board 11 through resiliency of said spring 13 in addition to knocking of disc 8.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to centering of a caliper in a floating caliper type disc brake.

Carino l on a support fixed to a non-rotating part of the vehicle! In floating caliper type disc brakes, which generate braking force by squeezing the disc that rotates with the wheel between the outer pad and inner pad, which are supported on the caliper, e forearm, and rear arm of the caliper, respectively, the inner pad or the outer pad [T1] when not braking between the disc and the
The gap (hereinafter referred to as the ξrad gap) is created by the rear elastic force of the seal member of the piston, which is fitted into the rear arm of the caliper so that it can move forward and backward, to cover the gap between the inner side pad and the gap between the outer side pad and the disc. This is a structure that ensures centering of the caliper by securing the outer side/glad gap f. Therefore, especially with large floating caliper and e-type disc brakes, the weight of the caliper body is heavy, so the caliper body is not centered, and the pads slide against the disc even when not braking, causing f3'l' t
This caused problems such as an increase in the temperature of the fl nozzle and abnormal wear of the lining.

The present invention was made in view of the above-mentioned circumstances, and it is possible to maintain a predetermined positional relationship with the support by positioning the inner A and the inner A with respect to the seat when braking is not applied. This provides a mechanism for centering the carry chisel body while maintaining a pad gap with respect to a certain disk.

The present invention will be specifically described below with reference to illustrated embodiments.

1 is a support fixed to a non-rotating part of the vehicle. Floating carry type disc brake carry/'?
The forearm 2a of the yg diy 2 is supported so that the outer rod 3 is struck by its back metal 3a and receives braking torque by the anchor pin 5. Calinogu's back arm 2
A piston 6a is fitted into the cylinder 6 provided in the cylinder 6 so as to move forward and backward, and the inner pad 4 has a contact plate 4b fixed to the long metal 48, and the piston 6a is brought into contact with the contact plate 4b, and the corresponding plate 4b is It is supported by an anchor pin 5' screwed onto the rear arm 2b together with the back metal 4a, and receives braking torque. Further, a guide pin 7 is installed between the forearm 2a and the rear arm 2b, and the guide pin 7 is slidably inserted into the support 1).
h L, a disc 8f that rotates together with the wheel between the outer pad 3 and the inner pad 4: is sandwiched. 9 is a dustproof boot, and 6b is a sealing member that also functions to return the piston 6a.

A pair of spacing devices are interposed between the support 1, the forearm 2a, and the contact plate 4b, respectively. 10 is a first spacing device provided between the end side surface 1a of the support 1 and the inner side surface 2a' of the forearm 2a. Reference numeral 11 is an angle-shaped spaced hole, and the distance between the two islands is 1ii1. +tt't! @ IJ The long hole 11g in the longitudinal direction is
It is equipped with a root hole. Spacing board work 1←1. The end side of the support is connected to the end side of the support at the pole 12 through the wave washer 12a with the length being unarticulated. The other end rj 1111 of the spacer plate 1 bent at right angles is connected to the port 1 via the spring 13 so as to maintain the parallel gap δ when not braking.
4, 0111 side 2a of the forearm 2a of the caliper body
/ is loosely screwed on. Reference numeral 10' denotes a second view-maintaining device II: provided between the lower end surface 1b of the support 1 and the contact plate 4b of the inner pad. 11' is a spacing plate similar to the spacing plate 11, and the spacing plate 11' is adjusted in length 1j and is connected to the selt 1 through the wave washer 12'a.
2', the lower surface of the support is tightened 9liil 1bKg4, and the other end is held through the plate spring 13' to maintain parallelism 1:, :j, i ill J/, which is approximately the same as the parallel gap δ when not braking. As shown, it is loosely screwed to the inner plate 4b fixed to the back metal of the six-piece dot 4 using a selt 14'.

The eleventh old i holding device 10 and the second spacing holding device 10' are provided in pairs at both ends of the support l, and the first
The spacing device 110 can be provided between both end portions of the support 1 and the outer pad ξ by providing protrusions or the like on the gold 3a.

The second spacing device 10' can also be provided between both ends of the rear arm 2b of the carrier IJ9 body and the contact plate 4b.

Next, the operation of the present invention will be explained. Control MI II;'
At j, the inner pad 4 is pressed by the piston 6a and moves ta 4'A to the disc 8, and due to the reaction force, the caliper body 2 slides against the support 1 by the guide pin 7, and the outer pad 3 also contacts the disc. 8 to generate braking force.

When the brake is released, the piston 6a returns to the 9th position due to the restoring elastic force of the sealing member 6b. In both cases, the inner pad 4 is held at 7 degrees with respect to the spacer plate 11' by the elastic force of the 1 lil spring 13'. The whale is pushed back to obtain δ′.

In addition to the impact of the disk 8, the outer mirror 3 is pushed back to the spacing plate 11 by the repelling force of the disk spring 13 to obtain a predetermined gap δ. In this manner, the outer diameter 3 and the inner diameter 4 are provided with a predetermined gap with respect to the disk 8, so that the carriage body 2 is centered.

Both ξ points 3 and 4 are due to its use! , l When the spacers 11, 11' and wave washers 12a, 12a' are worn out, their lengths are automatically adjusted according to the amount of wear. In addition, since the anti-ladle cover that was conventionally elastically interposed between the guide pin and the no-gurado for the purpose of suppressing the -L eye 11rJ of the notch is omitted, the anti-ladle cover becomes a guide when used. It also eliminates the problem of sticking to the bottle and hindering the 6 rad replacement work.

Centarimbut of the carinomibody according to the present invention; j:
1.') is the forearm of Kiyarinose, which abuts and supports the outer pad, and the rear arm of the caliper, which supports the inner pad and forms a cylinder into which the piston that presses the inner pad is fitted so that it can move forward and backward. A floating caliper type disc brake is installed on a vehicle by inserting a guide pin in between and slidably inserting the guide pin into a support fixed to a non-rotating part of the vehicle. Two spacing plates are used that have a long hole in the longitudinal direction and a bolt hole at the other end, and one of the spacing plates is fixed to the support via a washer with a bolt that passes through the long hole. The first spacing device and the other spacing plates are screwed to the forearm of the caliper or the back metal of the outer pad via a disc spring with bolts inserted through the elongated holes, and fixed to the support via washers with bolts inserted through the elongated holes. The first spacing device was screwed to the backing plate fixed to the Innano Mirado using a bolt inserted into the melt hole via a disc spring.

Therefore, in the non-braking state, both A and D maintain an appropriate pad gap and carry.
The problem of abnormal lining wear Hp\ was resolved, and the pad replacement process was streamlined by omitting the anti-ladle cover.

[Brief explanation of the drawing]

Fig. 1 is a front view of a floating carry rod-type disc brake with a carry/(Daddy's senkling G'< There is. 1: Support, 1a: End side of support, 1b = lower surface of bottom 1)7f+j, 2: Carino e, d di, 2
a,: Forearm of Calipazedei, 2b: Back arm of Calino 8 body, 3: Auknograd, 3a: Back metal of outer pad, 4: Innano Grado, 4a: Back metal of Innanomirad, 4b Second plate, 5 y 5/: Anchor bottle, 6a Niji cylinder, 6b: Seal member, 7: Guide pin, 8: Disc, 10: Ui1'l holding device between 1 and 6 10'
:Second spacing device, 11.11': Spacing plate, 11a:
Long hole, 12° 12': Bolt, 12 a + 12 m
': Wave washer, 13, 13': Disc spring, 14
, 14. ' : Bolt fee 31jj Patent attorney front 1) Interest 2 Figure 1

Claims (1)

[Claims] A guide bin is installed between the forearm of the caliper that abuts and supports the outer pad, and the heel of the caliper that supports the inch knot and forms a cylinder into which a piston that presses the inner diameter pad is fitted so as to move forward and backward, 1. In a floating caliper type disc brake that can be attached to a vehicle by slidably inserting a guide bin into a support fixed to a non-rotating part of the vehicle. 11 old' of 2-item 51 which has an angular shape and has a long hole in the longitudinal direction and a bolt hole at the other end.
/II board, one spacer board inserts its long hole)13
:The first spacing device is fixed to the support with a washer using a bolt inserted into the bolt hole, and is screwed to the forearm of the caliper ξ or the back metal of the outer blade via a disc spring using a bolt inserted through the bolt hole, and others. Between (A1'>& is fixed to the support via a washer with a melt inserted through the elongated hole, and screwed to the letterpress fixed to the inner pad with a bolt inserted through the bolt hole via a disc spring. A centering mechanism for a carino e body, which is different from the second holding device I91.