JPS63180740U

JPS63180740U -

Info

Publication number: JPS63180740U
Application number: JP7195587U
Authority: JP
Priority date: 1987-05-14
Filing date: 1987-05-14
Publication date: 1988-11-22
Anticipated expiration: 2002-05-14
Also published as: JPH0638190Y2

Description

[Brief explanation of the drawing]

第１図は第２図の−視断面に相当する要部
拡大図である。第２図は本考案が適用されたデユ
オサーボ型ドラムブレーキの要部を示す正面図で
ある。第３図は本考案の他の例の要部を示す図で
あつて、第１図に対応する図である。第４図は本
考案の更に他の例の要部を示す図であつて、第１
図に対応する図である。１０：バツキングプレート、１２，１４：ブレ
ーキシユー、２０：アジヤスタ（連結機構）、２
２：アンカピン（アンカ部材）、３６：掛止部材
、３８：引張りコイルスプリング、４２，４３：
フツク、４４：直線部、４６：回曲部、４８：対
向部、５２：係合穴、５４，６０：係合部、５８
，６２，６４：当接部。 FIG. 1 is an enlarged view of a main part corresponding to a cross section taken along the line - in FIG. 2. FIG. FIG. 2 is a front view showing the main parts of a dual-servo type drum brake to which the present invention is applied. FIG. 3 is a diagram showing the main parts of another example of the present invention, and corresponds to FIG. 1. FIG. 4 is a diagram showing the main parts of still another example of the present invention, and shows the first part.
FIG. 10: Bucking plate, 12, 14: Brake shoe, 20: Adjuster (connection mechanism), 2
2: Anchor pin (anchor member), 36: Hanging member, 38: Tension coil spring, 42, 43:
Hook, 44: Straight part, 46: Curved part, 48: Opposed part, 52: Engagement hole, 54, 60: Engagement part, 58
, 62, 64: contact portion.

Claims

[Claims for Utility Model Registration] A pair of brake shoes disposed on a bucking plate so as to be able to expand with respect to each other; a connecting mechanism that connects opposing ends of the brake shoes; and the buckling. an anchor member that is fixed on a plate and receives braking torque transmitted to the brake shoe when the other end of the brake shoe comes into contact with the anchor member; a straight portion; and a curved portion that curves at the tip thereof; and a substantially U-shaped hook at both ends, each consisting of a facing portion extending from the tip of the curved portion and facing the straight portion, one of the hooks being a plate-shaped hook provided on the backing plate. The other side of the hook is hooked to a through-hole provided in one of the brake shoes and penetrates in a direction perpendicular to the bucking plate, whereby the one brake shoe is hooked. In a dual servo type drum brake equipped with a tension coil spring that urges the brake shoe toward the other brake shoe, the locking member is provided with an engagement hole that penetrates in the plate thickness direction, and the locking member of the locking member The plate surface of the portion where the matching hole is provided is positioned approximately parallel to the linear portion of the one hook, and the hook member is provided with a portion of the tension coil spring on the bucking plate side or on the bucking plate side. abutment that prevents rotation of the tension coil spring about the one hook in a direction in which the other hook is removed from the through hole based on the abutment between the tension coil spring and the opposite side of the spring; A dual servo type drum brake characterized by the provision of a section.