JP2542332Y2 - Disc brakes for vehicles - Google Patents

Description

[Detailed description of the invention]

[0001]

INVENTION The present invention relates to a disk brake mounted on a vehicle such as an automobile or a motorcycle, and more particularly, to move smoothly performed so the friction pad, disk
The present invention relates to a pad retainer provided on a pad guide section of a caliper support arm on a crawler reciprocating side .

[0002]

2. Description of the Related Art A lug is provided on a side of a back plate of a friction pad disposed on a side of a disk rotor, and the lug is supported on a pad guide formed on a caliper supporting arm of a bracket. Thus, in a disk brake in which the friction pad is moved in the disk axis direction, for example, Japanese Utility Model Publication No. 59-10
As shown in Japanese Patent Publication No. 434, a pad retainer having a smooth surface is provided on the pad guide portion so that the friction pad can move smoothly in the disk axial direction.

In the above-described disc brake , a pad retainer disposed on a disc revolving side is provided with a concave retainer portion accommodated in a pad guide portion of a caliper support arm, and a disc rotor which is provided on a side opposite to a disc rotor side edge of the retainer portion. the tip of the folded portion which is bent into a U-shape in the direction, the retainer portion
A pad pressing piece provided on the ear piece side was provided, and the tip side of the pad pressing piece was inclined in a direction away from the retainer portion, and at the same time, the pad pressing piece and the retainer portion were inclined outward in the disk radial direction. the structure, Pas head pressing piece is pressed against the end face of the lug, the disc rotor <br/> run-out direction and the disc rotor radially outside and from the disc b to the friction pad
The component force rebounds toward the data direction . This
In addition, the component force in the disc rotor unwinding direction depends on the friction pad.
Insert the lugs on the disc rotor exit side into the disc rotor exit side.
To the pad guide section of the
Prevent rattling noise and clonk noise during braking,
Radially outward force is applied to the friction pad
To the outer circumference of the motor, and play in this direction when braking is not performed.
Prevents crackling noise and clonk noise during braking, and prevents
The force component in the direction of
Bias in the direction away from the
Prevents squealing noise and drags the disk rotor
To reduce sticking noise.

[0004] The pad retainer, handicap of Li retainer part
Projecting from Isukurota side edge of the strip to the perpendicular direction, with the folded portion of the base end side of the band piece, Pas a distal end side of the band piece
It is a developed shape as a pad pressing piece.

[0005]

[Devised Problems to be Solved However, the above-mentioned
The pad retainer forms a pad pressing piece and a folded portion.
Unfolded shape in which the strip that protrudes from the retainer in the orthogonal direction
When removing material from the pad retainer,
There are a lot of cuts around the piece, which is extremely uneconomical
there were.

[0006] Further, the pad pressing piece is used to remove the friction pad.
Disk rotor rotation direction and disk rotor radial outside
A component force that rebounds in the direction of the anti-disk rotor
In order, tilting the pad pressing member to the outer side of the disk radial direction
The pad retainer and pad guide.
The back wall of the door is inclined to match this, but the pad
To cut the inner wall of the guide at a predetermined angle,
This is a difficult and time-consuming task and requires a pad retainer.
The retainer and the pad according to the inner wall of the pad guide.
Need to set a delicate angle with the
Was something new.

The present invention has been made in view of such circumstances, and there is little waste in removing the material of the pad retainer.
Easily process pad retainers and pad guides
It is an object of the present invention to provide a disc brake for a vehicle that can perform the same.

[0008]

DISCLOSURE OF THE INVENTION In accordance with the above-mentioned object, the present invention provides a disk rotor inlet and outlet calipers arranged in the axial direction of a disk rotor across the outer peripheral edge of the disk rotor. A friction pad disposed on a side surface of the disk rotor on a pad guide portion provided opposite to the support arm.
In a vehicle disc brake laid retainer portion for supporting the ear piece of the back plate, provided in the disc rotor run-in side
The expanded shape of the pad retainer is
From the edge of the disk rotor side to the outer periphery of the disk rotor
A folded portion projecting inclined to, re from the tip of該折return part
Disc row along the edge of anti-disk rotor side of the
And a pad pressing piece extending in the outer peripheral direction of the
Bend in the direction of the retainer, and press the pad pressing piece
It is arranged on the one side of the ear of the retainer part, and
The pressure piece is pressed against the end face of the ear piece .

[0009]

In such a configuration, the developed shape of the pad pressing piece and the folded portion of the pad retainer is formed on the side edge of the retainer portion.
It becomes a strip protruding in an L-shape along it, and becomes a pad retainer shape with less waste in material removal. This strip is folded
Pressing the pad by bending the part toward the retainer part
The piece is placed on the ear piece side of the retainer and pressed against the end face of the ear piece
A component force acts on the friction pad to repel the friction pad outwardly in the disk rotor direction and outward in the disk rotor radial direction from the pad pressing piece .

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings .

The disc brake 1 is mounted on a caliper bracket 3 fixed to the vehicle body at one side of the disc rotor 2 which rotates in the direction of arrow A. The disc brake 1 straddles the outer periphery of the disc rotor 2 in the axial direction of the disc rotor . A pair of caliper support arms 3a, 3a arranged side by side are extended, and both caliper support arms 3a, 3a are extended.
Between the floating caliper body 4 and the disk rotor 2
Are arranged to straddle the outer peripheral edge. Caliper support arm 3a 3
a is provided with an insertion hole 3b, and the caliper body 4 is capable of moving in the axial direction of the disk rotor by inserting a sliding pin 5 protruding from the mounting arm 4a 4a into each insertion hole 3b. Supported by

A friction pad 8 having a lining 6 adhered to a back plate 7 is provided on both sides of the disk rotor 2. Ear pieces 7a protrude from both sides of the back plate 7, and each of the friction pads 8 is provided with the caliper support arms 3a, 3a.
a disk rotor inlet and outlet provided opposite to
Ear pads 7 are provided on the U-shaped pad guide portions 3c, 3c on the output side.
a and 7a are supported via pad retainers 9 and 10,
At the time of braking and braking release, the pad retainers 9 and 10 smoothly guide the movement in the disk rotor axial direction. Also,
A pad spring 11 for urging the friction pad 8 toward the center of the disk rotor is contracted between the bridge portion 4b of the caliper 4 and the back plate 7 so that the friction pad 8 is rattled by running vibration, When the disk rotor 2 comes into sliding contact with the disk rotor 2, the disk rotor 2 is prevented from floating outward in the radial direction .

[0013] A pad retainer mounted on the disk inlet side
The disk 9 is disposed so as to straddle the outside of the disk rotor 2.
The connecting piece 9a and the lower end of the connecting piece 9a
Laying on the pad guides 3c, 3c on the disk rotor entry side
Of the U-shaped retainer portions 9b, 9b
Protruding from the center of the lower part,
Locked in the rotor groove 3d recessed inside the support arm 3a.
Locking claw 9c to be provided. In addition,
The pad retainer 10 attached to the
A connecting piece 10a disposed over the outside of the scroller 2
Protruding from both lower ends of the connecting piece 10a,
Laid on the pad guides 3c, 3c on the
Under the retainer portions 10b, 10b and the connecting piece 10a.
Projecting from the center of the
The rotor arm 3a is locked in a rotor groove 3d recessed inside the support arm 3a.
Locking claw 10c is provided.

Further, the pad retainer 9 mounted on the disk reversing side has a U-shaped retainer portion 9b at the tip of a folded portion 9d which is bent from the side edge of the retainer portion 9b toward the disk rotor. It has a pad pressing piece 9e disposed substantially parallel to the ear piece 7a side . This pad pressing piece 9e
The lug 7a on the disk rotor outlet side is pressed into contact with an engagement hole 7b cut out at the lower part of the side end surface of the lug 7a on the disk revolving side.
Has an urging force to abut the retainer portion 10b of the pad retainer 10.

Pad retainer 9 on the disk rotor reciprocating side
In the developed view of FIG. 2, as shown in FIG.
Inclined at the disc rotor side edge, toward the disc rotor outer periphery
A folded portion 9d is protruded, and the tip of the folded portion 9d is
Of the retainer portion 9b on the side opposite to the disk rotor.
Along the outer circumference of the disk rotor
The strip consisting of the strip 9d and the pad pressing piece 9e is a retainer.
It protrudes in an L shape along the side edge of the portion 9b. This strip
Is obtained by bending the folded portion 9d toward the retainer.
And a retainer portion 9 formed by bending a pad pressing piece 9e into a U-shape.
b is arranged on the side of the ear piece 7a. A package configured in this way
Place the retainer 9 on the pad guide on the disk rotor reciprocating side.
By attaching to the portions 3c, 3c, the pad pressing pieces 9
e, 9e to the friction pads 8, 8
Component force that oscillates in the direction
Works.

Pad retainer 9 on the disk rotor reciprocating side
As described above, the folded portions 9d of the pair of L-shaped strips are
By bending in the direction of the tener portion , the outer edges of the folded portions 9d , 9d become inclined in a flared shape as shown in FIG. 5, and are pressed against the end face of the lug 7a on the disk rotor entry side. against the pressing piece 9e from the friction pad 8, the biasing force emanating direction and the disc rotor radially outer exits disc rotor once the bullet rather work.

In this embodiment, the disk rotor
Pad pressing piece 9e of pad retainer 9 arranged on the entry side
Deployed configuration between the folded portion 9d is handicap of the retainer portion 9b
Since it becomes a strip protruding in an L-shape along the disk rotor side edge, the cut-off portion is slightly smaller than the conventional one in which the strip protrudes in the orthogonal direction from the retainer portion,
There is little waste in material removal, and it is economical.
Also, due to such an expanded shape, the retainer portion 9b and the
Do not tilt the pressing piece 9e outward in the disk radial direction.
However, when the pad pressing piece 9e
To the outside direction of the rotor and the radial direction of the disk rotor.
Component force acts on the pad guide portion 3c or the retainer.
The disk rotor radius direction is
There is no need to set the outside angle, and the pad guide
The portion 3c can be easily processed, and the pad retainer can be formed.
9 can be easily manufactured.

[0018] Incidentally, the distal end side of the pad pressing pieces 9e, when placed in an inclined in a direction away from the retainer portion 9b, anti
A component force is generated in the direction of the disk rotor, and the pad pressing piece 9e is formed.
Is the direction in which the friction pad 8 is separated from the side surface of the disk rotor 2.
To prevent rattling during non-braking in this direction.
And the drag phenomenon by the disk rotor 2 is reduced.
Lowering to prevent the generation of stick noise and to prevent uneven wear due to dragging.

[0019]

[Effect of the Invention] The present invention is provided on the disk rotor inlet side.
The expanded shape of the pad retainer is
From the edge of the disk rotor side to the outer periphery of the disk rotor
A folded part that projects in an inclined manner, and
Disc row along the edge of anti-disk rotor side of the
And a pad pressing piece extending in the outer peripheral direction of the
Bend in the direction of the retainer, and press the pad pressing piece
It is arranged on the one side of the ear of the retainer part , and
Since the pressure piece was pressed against the end face of the ear piece, it folded back with the pad pressing piece.
The unfolded shape is L-shaped along the side edge of the retainer
The belt strip protrudes from the
Excellent in material removal because only a few wasteful parts are required.
Reduction can be achieved.

[0020] Further , from such an expanded shape, the pad
Insert the retainer of the tena and the pad pressing piece
Even if you do not incline outward, friction pad
Disk rotor extension direction and disk rotor radial direction
Since a component force rebounding to the outside acts, the pad guide section
Disk retainer radius on the retainer and pad pressing pieces
It is no longer necessary to set the angle outside
The machining of the pad section can be done easily, and the pad retainer
It can be manufactured easily.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a pad retainer on a disk rotor recirculation side according to the present invention ;

FIG. 2 is a development view of the pad retainer of FIG. 1;

FIG. 3 is a sectional front view of a disk brake using the pad retainers of FIGS. 1 and 2 on the disk rotor reciprocating side.

4 is a sectional view taken along line IV-IV in FIG.

FIG. 5 1. Front view of the pad retainer of FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Disc brake, 2 ... Disc rotor, 3 ... Caliper bracket, 3a ... Caliper support arm, 3c ... Pad guide part, 3d ... Rotor groove, 4 ... Caliper body, 6 ...
Lining, 7: Back plate, 7a: Ear piece, 7b: Engagement hole, 8
... Friction pad, 9 ... Pad retainer on disk rotor reciprocating side , 9a ... Connecting piece, 9b ... Retainer part, 9c ... Locking claw, 9d ... Folding part, 9e ... Pad pressing piece, 10 ... D
Pad retainer on scroller exit side

Claims (1)

(57) [Scope of request for utility model registration] 1. A across the perimeter of the disk rotor disk <br/> disc rotor run juxtaposed to click the rotor axis entry side and
A pad guide portion provided opposite to the caliper support arm on the feed- out side is provided with a friction member disposed on a side surface of the disk rotor.
A disc rotor for a vehicle equipped with a retainer for supporting the lugs of the back plate of the friction pad.
As the expanded shape of the pad retainer provided on the side,
From the edge of the retainer opposite the disk rotor,
A folded portion projecting obliquely to the outer peripheral side, and a tip of the folded portion
From the end, along the edge of the
Forming a pad pressing piece extending in the outer circumferential direction of the scroller,
Folding the folded portion toward the retainer portion to form the pad
A pressing piece is arranged on the ear piece side of the retainer part, and
The vehicle disc brake, characterized in that the pressure pad pressing piece on the end surface of the ear piece.